WO2004054555A1 - 新しい経肺投与用乾燥粉末吸入システム - Google Patents
新しい経肺投与用乾燥粉末吸入システム Download PDFInfo
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- A61K47/183—Amino acids, e.g. glycine, EDTA or aspartame
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
- A61K47/20—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing sulfur, e.g. dimethyl sulfoxide [DMSO], docusate, sodium lauryl sulfate or aminosulfonic acids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
- A61K47/26—Carbohydrates, e.g. sugar alcohols, amino sugars, nucleic acids, mono-, di- or oligo-saccharides; Derivatives thereof, e.g. polysorbates, sorbitan fatty acid esters or glycyrrhizin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
- A61K47/36—Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
- A61K47/40—Cyclodextrins; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/06—Solids
- A61M2202/064—Powder
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/07—General characteristics of the apparatus having air pumping means
- A61M2205/071—General characteristics of the apparatus having air pumping means hand operated
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/07—General characteristics of the apparatus having air pumping means
- A61M2205/071—General characteristics of the apparatus having air pumping means hand operated
- A61M2205/075—Bulb type
Definitions
- the present invention relates to a novel dry powder inhalation system suitable for pulmonary administration. More specifically, the present invention provides a dry powder for transpulmonary administration, which is prepared by pulverizing a lyophilized composition provided in a container at the time of use into a formulation suitable for pulmonary administration, and which can be directly administered by inhalation. Talk about inhalation systems.
- the present invention relates to the following technology relating to the dry powder inhalation system for pulmonary administration.
- such techniques include a freeze-dried composition that can be prepared into a fine particle powder (dry powder preparation for pulmonary administration) suitable for use at the time of use, and a method for producing the dry powder preparation for pulmonary administration.
- a freeze-dried composition that can be prepared into a fine particle powder (dry powder preparation for pulmonary administration) suitable for use at the time of use
- a method for producing the dry powder preparation for pulmonary administration examples thereof include a pulmonary administration method by inhalation using the lyophilized composition, and a lyophilized composition for producing a dry powder preparation for pulmonary administration at the time of use.
- fine particles is intended to encompass finely-shaped particles irrespective of the shape such as powder (fine powder), needle, plate, and fiber. Used. Background art
- the average particle size of the active ingredient contained in the drug should be 10 microns or less, preferably 5 microns or less, so that the active ingredient can reach the lungs efficiently. It is known that it can be done.
- conventional inhalants for pulmonary administration are prepared by preparing fine particles by spray-drying or jet milling or otherwise processing the drug substance in advance to obtain a particle size suitable for pulmonary administration. At present, it is provided by filling it into an inhalation device.
- a preparation prepared by filling a powdery composition composed of only drug fine particles into an appropriate container (2) a drug fine particle is formed softly.
- a powdery composition that has been granulated to form a relatively large particle size is placed in a suitable container.
- a powdery composition comprising mixed particles obtained by uniformly mixing drug particles and excipient particles (eg, lactose) having a larger particle size than the drug particles in a suitable container;
- excipient particles eg, lactose
- the conventional dry powder inhalant for pulmonary administration is prepared by preparing an inhalation component into desired fine particles in advance, or by processing these fine particles by some method and filling them into a device. Pulmonary administration.
- a spray-drying method for example, Japanese Patent Application Laid-Open No. H11-171760
- a jet mill method for example, Japanese Patent Application Laid-Open No. 2001-151616 73, etc.
- the jet mill method used here is a method in which an air impact generated by an air flow rate of 1000 L / min or more and an air velocity higher than the speed of sound is given to a low-molecular-weight drug to make the drug into fine particles.
- a spray solution of an undiluted drug solution containing additives is converted into fine particles with an average particle diameter of 5 microns or less in one step by a spray-dry method, and this is filled into an inhalation device.
- Method eg, spray dry method: WO95 / 31479), freeze-drying of peptides and proteins together with additives, and then freeze-drying the resulting freeze-dried product into fine particles using a jet mill or the like and applying this to an inhalation device.
- Methods of filling are known (freeze-dried jet mill method; for example, O 91/160 38).
- An object of the present invention is to solve the various problems related to the conventional dry powder inhaler for pulmonary administration described above.
- the present invention provides a novel preparation which can be used for transpulmonary administration by inhalation by lyophilizing a freeze-dried composition contained in a container into a particle size suitable for pulmonary administration in the container. It is intended to provide a system and an administration system.
- the present inventors have been conducting diligent studies day and night to achieve the above object, and found that a freeze-dried composition in a non-powder state prepared by filling a container with a pharmacologically active substance as an active ingredient by a freeze-drying method was used. It was unexpectedly found that the particles could be atomized while being stored in the container with a relatively low air impact. Based on such findings, the present inventors have further studied and put the lyophilized composition contained in the container in a non-powder state into the container so as to give a predetermined air impact to the composition.
- the user can use the apparatus easily (especially during inhalation) and can use it easily.
- the lyophilized non-powder formulation is finely divided into particles suitable for pulmonary administration.
- transpulmonary administration was possible by inhaling the microparticles as they were.
- the present inventors consider that the pharmacologically active substance-containing composition liquid to be filled in a container is limited to a case where a compounding ingredient, in particular, a pharmacologically active substance as an active ingredient is clearly dissolved or mixed in a solvent.
- Lyophilized composition suitable for pulmonary administration by a given air bombardment even if it is insoluble or insoluble (solvent) in a solvent It was found that it can be prepared as The present inventors have confirmed that the dry powder inhalation system for pulmonary administration can solve all the problems related to the conventional dry powder inhalant for pulmonary administration described above.
- the transpulmonary administration system of the present invention since it is not necessary to separately fill the container after finely pulverizing with a separate device, it can be used for pulmonary administration without any problem of contaminating.
- the medicinal components such as proteins and peptides are not exposed to high temperatures in the manufacturing process unlike the spray drying method and the like. Decreased pharmacological activity is not a problem. This means that the cost of pharmaceutical preparation can be reduced by using pharmacologically active substances such as peptides and proteins which are expensive drugs, that is, the pulmonary administration system of the present invention is economically useful.
- an extremely high effective particle ratio (amount of the drug reaching the lungs: Fine Particulate Fraction, Respirable Fraction) can be obtained, and the drug can be efficiently used. It is possible to reach the lungs.
- the dry powder inhalation system for transpulmonary administration of the present invention comprises a non-powder cake-like lyophilized composition prepared by freeze-drying a non-dissolved composition solution containing an active ingredient for transpulmonary administration. It is characterized by being used as a preparation.
- the dry powder inhalation system of the present invention in which the prepared freeze-dried composition in the form of a cake is applied to a device for inhaling a dry powder, for example, the jet mill method or the dry mill method used in the conventional dry powder inhalant is used.
- the dry powder inhalation system of the present invention can be positioned as a high-performance pulmonary administration system.
- the present invention has been developed based on such knowledge, and includes the following embodiments.
- Item 1 Prepared by freeze-drying a composition solution containing the ingredients in a non-dissolved state.
- a lyophilized composition for pulmonary administration having the characteristics of (i) to (iii):
- the decay index is 0.05 or more
- the average particle size is 10 microns or less or the effective particle ratio is 10% or more due to the impact of air having an air velocity of at least 1 m / sec and an air flow rate of at least 17 ml / sec. Particles.
- Item 2 The lyophilized composition according to Item 1, comprising a high molecular drug as an active ingredient.
- Fine particles having an average particle size of 10 microns or less or an effective particle ratio of 10% or more by the impact of air having an air velocity of at least 1 m / sec and an air flow rate of at least 17 ml / sec. become
- a method for producing a dry powder preparation for pulmonary administration wherein the freeze-dried composition is made into fine particles having an average particle diameter of 10 microns or less or an effective particle ratio of 10% or more.
- Item 4 The method for producing a dry powder preparation for transpulmonary administration according to claim 3, wherein the freeze-dried composition contains a high molecular drug as an active ingredient.
- Item 5 Production of a dry powder formulation for pulmonary administration according to Item 3, wherein the freeze-dried composition is micronized using a dry powder inhalation device described in (A) or (B) below as a device.
- a device used for atomizing a lyophilized composition stored in a non-powder state in a container, and inhaling the obtained microparticles to a subject A needle part having an air injection flow path, a needle part having a discharge flow path, air pressure feeding means for sending air to the air injection flow path of the needle part, and a suction port communicating with the discharge flow path of the needle part.
- the needle portion is pierced into a stopper that seals the container to communicate the air injection flow path and the discharge flow path with the inside of the container, and the air is fed into the container through the air injection flow path by the air pressure feeding means.
- the dry powder inhalation device for transpulmonary administration is characterized in that the freeze-dried composition is atomized by the impact of blast air, and the obtained microparticles are discharged from an inlet through the discharge channel.
- a needle portion having a suction channel, a needle portion having an air introduction channel, and a suction port communicating with the suction channel;
- the air in the container is sucked from the suction port by the inhalation pressure of the subject, and the air is introduced into the container at a negative pressure through the air introduction flow path.
- the freeze-dried composition is atomized by impact of the flowed air, and the obtained fine particles are discharged from the suction port through the suction channel. Dry powder inhalation device for pulmonary administration.
- Item 6. The following characteristics are obtained by freeze-drying a composition solution containing the ingredients in a non-dissolved state.
- the decay index is equal to or greater than 0.05
- the average particle size is 10 microns or less or the effective particle ratio is 10% or more due to the impact of air having an air velocity of at least lm / sec and an air flow rate of at least 17 ml / sec.
- a container containing a lyophilized composition having:
- a device capable of applying the above-mentioned air impact to the freeze-dried composition in the container, and a device provided with a means for discharging a powdery freeze-dried composition in which fine particles have been formed are used in combination.
- Dry powder inhalation system for pulmonary administration Item 7. The dry powder inhalation system for transpulmonary administration according to Item 6, wherein the container and the device are used in combination at the time of access.
- Item 8 The dry powder inhalation system for transpulmonary administration according to Item 6, wherein the lyophilized composition contains a high molecular weight drug as an active ingredient.
- a needle part having an air injection flow path, a needle part having a discharge flow path, air pressure feeding means for sending air to the air injection flow path of the needle part, and a suction port communicating with the discharge flow path of the needle part.
- the needle portion is pierced into a container for sealing the container to communicate the air injection flow path and the discharge flow path with the inside of the container, and the air is fed into the container through the air injection flow path by the air pressure feeding means.
- Dry powder for transpulmonary administration characterized in that the lyophilized composition is atomized by the impact of blast air by jetting, and the obtained microparticles are discharged from an inlet through the discharge channel.
- a needle portion having a suction channel, a needle portion having an air introduction channel, and a suction port communicating with the suction channel;
- Item 7 The dry powder inhalation system for transpulmonary administration according to Item 6, wherein:
- Item 10 The following characteristics are obtained by freeze-drying a composition solution containing the ingredients in a non-dissolved state.
- a method of pulmonary administration comprising administering to a user by inhalation.
- Item 11 The freeze-dried composition is contained in a container, and the finely divided powder is provided with a means capable of giving the above-described air impact to the freeze-dried composition in the container and a finely divided powder.
- Item 10 The pulmonary administration method according to Item 10, wherein the method is prepared using a device provided with a means for discharging a lyophilized composition in a form from a container.
- Item 1 The transpulmonary administration method according to Item 10, wherein the lyophilized composition contains a polymer drug as an active ingredient.
- Item 11 3 The method of pulmonary administration described in Item 11 using a dry powder inhalation device described in (A) or (B) below as a device:
- a needle part having an air injection flow path, a needle part having a discharge flow path, air pressure feeding means for sending air to the air injection flow path of the needle part, and a suction port communicating with the discharge flow path of the needle part.
- the needle portion is pierced into a container for sealing the container to communicate the air injection flow path and the discharge flow path with the inside of the container, and the air is fed into the container through the air injection flow path by the air pressure feeding means.
- Dry powder for transpulmonary administration characterized in that the lyophilized composition is atomized by the impact of blast air by jetting, and the obtained microparticles are discharged from an inlet through the discharge channel.
- a needle portion having a suction channel, a needle portion having an air introduction channel, and communicating with the suction channel.
- the air in the container With the needle portion pierced into the stopper that seals the container, the air in the container is sucked from the suction port by the inhalation pressure of the subject, and the air is introduced into the container at a negative pressure through the air introduction flow path.
- the freeze-dried composition is atomized by impact of the flowed air, and the obtained fine particles are discharged from the suction port through the suction channel. Dry powder inhalation device for pulmonary administration.
- Item 1 Lyophilized composition liquid containing the ingredients in a non-dissolved state. The following properties:
- freeze-dried composition having the above average particle diameter or an effective particle ratio, which is applied to fine particles having the above-mentioned average particle size or effective particle ratio, by pulmonary administration by inhalation of the freeze-dried composition.
- Item 15 The freeze-dried composition is contained in a container, and the finely divided powder is provided with a means capable of applying the above-described air impact to the freeze-dried composition in the container and the finely divided powder.
- Item 15 Use of the lyophilized composition for pulmonary administration according to Item 14, which is prepared using a device provided with a means for discharging the lyophilized composition in a form from a container.
- Item 16 Use of the freeze-dried composition for transpulmonary administration according to Item 14, wherein the freeze-dried composition contains a high-molecular-weight drug as an active ingredient.
- Item 17 Use of the following lyophilized composition for the manufacture of a dry powder formulation for pulmonary administration by injecting P:
- Item 18 The use of the freeze-dried composition for producing a dry powder preparation for transpulmonary administration according to Item 17, wherein the freeze-dried composition contains a high-molecular-weight drug as an active ingredient.
- Item 19 The freeze-dried composition is contained in a container, and the finely-divided powder is provided with a means capable of applying the above-described air impact to the freeze-dried composition in the container and the finely-divided powder.
- the lyophilized composition for the preparation of a dry powder formulation for pulmonary administration according to Item 17 is prepared using a device provided with a means for discharging a lyophilized composition in the form of a container from a container. use.
- Item 20 Use of a composition liquid containing the ingredients in a non-dissolved state to produce a freeze-dried composition having the following characteristics for preparing a dry powder preparation for pulmonary administration:
- a lyophilized composition having the following characteristics: used in the form of microparticles so that the above-mentioned average particle diameter or the above-mentioned effective particle ratio is obtained when used.
- Item 21 Use of a composition liquid containing the compounded component according to Item 20 in a non-dissolved state, wherein the lyophilized composition contains a high molecular drug as an active ingredient.
- Item 2 The lyophilized composition is contained in a container, and the finely divided powder is provided with a means capable of applying the above-mentioned air impact to the lyophilized composition in the container and the finely divided powder.
- Item 31. Use of a composition liquid containing the compounded component according to Item 20 in a non-dissolved state, which is prepared using a device provided with a means for discharging a freeze-dried composition in a form from a container.
- FIG. 1 is a cross-sectional view showing a dry powder inhalation device (injection type 1) of the present invention described as a first embodiment.
- the arrows in the figures indicate the flow of external air (the same applies to Figs. 2 and 3).
- FIG. 2 is a cross-sectional view showing a dry powder inhalation device (self-inhalation type 1) of the present invention described as a second embodiment.
- the meanings of the respective symbols are as follows: 16. Suction passage, 17. Air introduction passage, 18. P and inlet, 19. Suction member (hereinafter the same in FIG. 3).
- FIG. 3 is a cross-sectional view showing a dry powder inhalation device (self-inhalation type 2) of the present invention described as a third embodiment.
- FIG. 4 is a perspective view showing a dry powder inhalation device (self-inhalation type 3) of the present invention described as a fourth embodiment.
- the meaning of each symbol is as follows: 21. Housing, 22. Holder, 27. Lid, 28. Window, 32. Mouthpiece, 32 a. Mouthpiece cap, 39. 5 to 13).
- FIG. 5 is a cross-sectional view of the dry powder inhalation device (self-inhalation type 3).
- the meanings of the symbols are as follows: 20. Storage room, 21 A. Hinge, 23. Guide part, 24. Holder operating part, 26. Housing body, 29. Inlet, 30. Check valve, 31 Suction port, 33. Bulkhead, 35. Ejector, 36. Lever, 37. Mechanism, 39. Linkage, 40. Hinge, 41. Hinge (the same applies to FIGS. 6 to 13).
- FIG. 6 (a) is a partial cross-sectional view of the dry powder inhalation device (self-inhalation type 3), and FIG. 6 (b) is a side view of the needle part of the dry powder inhalation device.
- the meaning of each symbol is as follows: 16 a. Tip port of the suction channel 16, 17 a. Tip port of the air inlet channel 17, 34. Peripheral wall, 42. Second inlet channel, 2 a . Introductory groove of bulkhead 33, 42 b. Introductory groove of peripheral wall part 3 4, 4 3. Crevice, 4 4. One end of second introduction path 42, 4 5. The other end of second introduction path 42, 4 6. Vent hole, 4 7. Wall (Hereinafter, the same applies to FIGS. 7 to 13).
- 7 to 10 are cross-sectional views illustrating the operation of the dry powder inhalation device (self-inhalation type 3).
- Reference numeral 25 indicates an entrance.
- FIG. 11 is a perspective view of a dry powder inhalation device (self-inhalation type 4) according to another embodiment of the present invention.
- Reference numeral 48 denotes an operating body.
- FIG. 12 is a perspective view of a dry powder inhalation device (self-inhalation type 5) according to another embodiment of the present invention.
- Reference numeral 49 denotes an operating body.
- FIG. 13 is a perspective view of a dry powder inhalation device (self-inhalation type 5) according to another embodiment of the present invention.
- Reference numeral 49 denotes an operating body.
- the lyophilized composition of the present invention is a composition prepared by filling a container with a composition solution containing the ingredients in a non-dissolved state and freeze-drying the composition to a non-powder dried state. It is preferably a freeze-dried composition prepared by freeze-drying a non-dissolved composition solution containing an effective amount of an active ingredient in a single or several doses, particularly preferably a single dose.
- the freeze-dried composition of the present invention comprises a composition (active ingredient and carrier used in combination with the active ingredient) of the above composition so that the non-powder composition obtained by the freeze-drying treatment has a crush index of 0.05 or more.
- the particle size can be instantaneously or promptly changed to the particle size suitable for pulmonary administration by the impact (air impact, injection pressure) of the air introduced (flowed) into the container.
- the disintegration index referred to in the present invention is a value specific to the freeze-dried composition which can be obtained by measuring the freeze-dried composition according to the following method: ⁇ disintegration index>
- a container having a body diameter of ⁇ 18 18 or a body diameter of 2323) ⁇ is filled with a composition solution containing the target component constituting the target lyophilized composition in a range of 0.2 to 0.5 ml, Lyophilize it. Then, n-hexane is added to the obtained non-powder-shaped lyophilized composition on the wall of the container. 1. Oral dripping gently through. The mixture was stirred for about 10 seconds at 3000 ⁇ ⁇ ⁇ , and the mixture was poured into a UV cell with an optical path length of 1 thigh and an optical path width of 10 thighs, and the turbidity was immediately measured using a spectrophotometer at a measurement wavelength of 500 nm. . The obtained turbidity is divided by the total amount (weight) of the components constituting the lyophilized composition, and the obtained value is defined as the disintegration index.
- the lower limit value of the disintegration index of the freeze-dried composition of the present invention is 0.11, more preferably 0.12, particularly preferably 0.13.
- the upper limit of the disintegration index of the freeze-dried composition of the present invention is not particularly limited, but is preferably 1.5, preferably 1, more preferably 0.9, and still more preferably 0.9.
- the lyophilized composition of the present invention has a disintegration index within a range composed of a lower limit and an upper limit arbitrarily selected from the above, as long as it is 0.05 or more. desirable.
- the range of the decay index is specifically 0.05 to: L.5, 0.08 to: L.5, 0.09 to 1, 0.1 to 0.
- the freeze-dried composition of the present invention is prepared by freeze-drying into a non-powder cake-like form.
- the non-powder-shaped freeze-dried composition is a dry solid obtained by freeze-drying a composition solution containing an active ingredient, and usually means a freeze-dried cake.
- cakes cracked in the freeze-drying process or subsequent handling, formed into several large lumps, or partially broken and powdered do not impair the effects of the present invention.
- the present invention encompasses non-powder lyophilized compositions, ie, lyophilized compositions having a non-powder cake form.
- the freeze-dried composition of the present invention is prepared by freeze-drying a composition solution containing the ingredients in a non-dissolved state as described above, and has a disintegration index of 0.05 or more and a non-powder cake. And based on the inherent properties of the lyophilized composition expressed by the decay index above, based on an air velocity of at least lm / sec and at least It is characterized by the impact of air having an air flow rate of 7 ml / sec into fine particles with an average particle diameter of less than 10 microns or an effective particle ratio of more than 10%.
- a preferred lyophilized composition has an average particle size of 10 ⁇ m or less, preferably 5 ⁇ m or less, or an effective particle ratio of 10% or more, preferably 20% or more, more preferably 25% by receiving the above air impact. As mentioned above, more preferably 30% or more, particularly preferably 35% or more of fine particles can be mentioned.
- the air impact given to the freeze-dried composition is not particularly limited as long as the impact is generated by air having an air velocity of lm / sec or more and an air flow rate of 17 ml / sec or more.
- the above-mentioned air impact is exemplified by an impact generated by an air velocity of lm / sec or more, preferably 2 m / sec or more, more preferably 5 m / sec or more, and still more preferably 10 m / sec or more.
- the upper limit of the air velocity is not particularly limited, but is usually 30 Om / sec, preferably 25 Om / sec, more preferably 20 Om / sec, and still more preferably 15 Om / sec.
- the air speed is not particularly limited as long as it is within a range composed of the lower limit and the upper limit arbitrarily selected from the above, but specifically, 1 to 300 m / sec, 1-250 m / sec, 2 to 250 m / sec, 5 to 250 m / sec, 5 to 200 m / sec, 10 to 200 m / sec, 10 to 15 Om / sec.
- the air impact examples include an impact generated by an air flow rate of usually 17 ml / sec or more, preferably 20 ml / sec or more, more preferably 25 ml / sec or more.
- the upper limit of the air flow rate is not particularly limited, but is 900 L / min, preferably 15 L / sec, more preferably 10 L / sec, still more preferably 5 L / sec, still more preferably 4 L / sec, and particularly preferably. 3 L / sec.
- the air flow rate may be within a range composed of a lower limit and an upper limit arbitrarily selected from the above, and is not particularly limited.
- Such a range is, for example, 17 ml / sec to 15 L / sec, ml / sec to 10 L / sec, 20 ml / sec to 5 L / sec, 20 ml / sec to 4 L / sec> 20 ml / sec to 3 L / sec, and 25 ml / sec to 3 L / sec.
- the active ingredient used in the present invention is, as a rule, a component of a dry powder inhaler for pulmonary administration. It is not particularly limited as long as it is a pharmacologically active substance (pharmacologically active substance: hereinafter, also simply referred to as a drug) that can be used as a drug. Specific examples include a low molecular drug and a high molecular drug.
- Polymeric drugs include proteins (including peptides and polypeptides) such as enzymes, hormones and antibodies, and physiologically active components such as DNA (including genes and cDNA) and nucleic acids such as RNA. It is. In some cases, systemic and local therapies can be considered as target diseases for drugs.
- low-molecular-weight drugs examples include hydrocortisone, prednisolone, triamcinolone, dexamethasone, vesamethasone, beclomethasone, flutizone, mometasone, budesonide, salvumuol, salmeterol, proproterol, buprenorphine chlorate, apomorphine, and suxol , And tobramycin and the like.
- high molecular drugs include interferon (hi, ⁇ , r) and interleukin (eg, interleukin-1, 2, 3, 4, 5, 5.6, 7,, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18 etc.), anti-inulin-leukin-1 ⁇ antibody, interleukin-11 receptor, Inleukin-leukin receptor angiogonist, inleukin-leukin-14 receptor, anti-interleukin-12 antibody, anti-interleukin-16 receptor antibody, interleukin-4 interleukin-gonist, interleukin-16 Antagonist, anti-interleukin-8 antibody, chemokine receptor antagonist, anti-interleukin_7 receptor, anti-interleukin-7 antibody, anti-interleukin-15 antibody, inu-leukin-5 receptor, Anti-interleukin-1 9 antibody, Interleukin-19 receptor, anti-interleukin-10 antibody, interleukin-10 receptor, anti-interleukin-14 antibody, interleukin
- Colony stimulating factor M-CSF
- calcitonin insulin, insulin derivative (LisPro, NovoRaid, HOE901, NN-304, etc.)
- insulnotropin Insulin-like growth factor, glucagon, somatostatin or its analog, vasopressin or its analog, amylin, human growth hormone, luteinizing hormone-releasing hormone, follicle-stimulating hormone, growth hormone-releasing factor, parathyroid hormone, vascular endothelial cell growth factor, Platelet-derived growth factor, keratinocyte growth factor, epithelial cell growth factor, fibroblast growth factor, brain-derived neurotrophic factor, ciliary neurotrophic factor, tumor necrosis factor (TNF), TNF receptor, TNF inhibitor , Transforming growth factor (TGF), hepatocyte growth factor (HGF), nerve growth factor (NGF), blood stem cell growth factor, platelet growth factor, natriuretic peptide, blood coagulation factor, blood hepatocyte growth factor (S-
- active ingredients can be used alone or in combination of two or more.
- various peptides include natural polypeptides, genetically modified polypeptides, and chemically synthesized polypeptides. Etc. are also included.
- these active ingredients may be used as they are, in a free state or in a salt state, or may be used in a form held by an arbitrary holding body.
- the active ingredient for example, high-molecular-weight drugs such as proteins and nucleic acids, including synthetic low-molecular-weight drugs
- the active ingredient can be attached / existed in any mode (adsorption, inclusion, inclusion, ionic bonding, etc.).
- high-molecular-weight drugs such as proteins and nucleic acids, including synthetic low-molecular-weight drugs
- the active ingredient for example, high-molecular-weight drugs such as proteins and nucleic acids, including synthetic low-molecular-weight drugs
- the active ingredient for example, high-molecular-weight drugs such as proteins and nucleic acids, including synthetic low-molecular-weight drugs
- the active ingredient can be attached / existed in any mode (adsorption, inclusion, inclusion, ionic bonding, etc.).
- examples thereof include a lipid membrane structure, microcapsules,
- the lipid membrane structure includes liposomes such as unilamellar liposomes and multilamellar liposomes, O / W-type or WZOZW-type emulsions.
- liposomes such as unilamellar liposomes and multilamellar liposomes, O / W-type or WZOZW-type emulsions.
- John spherical micelles, string micelles, and layered structures.
- a dendrimer is a molecule in which the molecular chains are regularly spread three-dimensionally from the center to the outside based on a certain rule.
- Dendrimers have a spherical structure and have a space for taking drugs inside, so they can function as nanocapsules.
- 1) use the interaction between the inside of the dendrimer and the drug hydrophobic interaction, electrostatic interaction, etc.
- a method of physically trapping a drug is known (Literature: Kenji Kono: Drug Delivery System, 17-6, 462-470 (2002).
- the SuperFect used in the examples is a constant. Bioactive Chem.
- the carrier is ribosome, dendrimer, retrovirus vector, adenovirus vector, adeno-associated virus virus vector, lentivirus, simple virus vector, HVJ (Sendai virus)-liposomal One time (for example, HVJ Envelope VECTOR KIT etc. can be mentioned.
- a support such as a lipid membrane structure or a dendrimer has been widely used to introduce a foreign gene into cells, and in the present invention, such a liposome for gene transfer and a dendrimer for gene transfer are used similarly. Can be used. They are also commercially available.
- the particle size of the support is not particularly limited as long as it is 10 microns or less. Preferably it is 5 microns or less.
- ribosomes and emulsions usually have a particle size (geometric mean particle size: dynamic light scattering method or laser diffraction scattering method) of 50 nm to several meters, and spherical micelles have a particle size of 5 to 50 ⁇ m. nm.
- a dynamic light scattering method is used for the particle size distribution of particles in the tens of nanometer range, and the distribution of particles of tens of microns or more is used.
- the laser diffraction / scattering method is used. Any measurement method may be used to measure the particle size distribution of particles in the range of hundreds of nanometers in the middle to several micrometers in the middle.
- the lipid membrane structure may be in the membrane, on the surface, inside, or on the lipid. Examples can be given of the case where it is present in an arbitrary manner in the layer or on the lipid layer surface.
- an aqueous solvent is added to a mixed dried product of a support such as a lipid membrane structure and an active ingredient (such as a gene), and further emulsified or suspended by an emulsifier such as a homogenizer.
- Method a method in which a support such as a lipid membrane structure is once dissolved in an organic solvent, and then the solvent is distilled off.
- an aqueous solvent containing an active ingredient (such as a gene) is further added to the dispersed support such as a lipid membrane structure; and once the support such as a lipid membrane structure is dispersed in an aqueous solvent and dried.
- a method of adding an aqueous solvent containing an active ingredient (such as a gene) to the dried product see JP-A-2001-2592).
- the composition is prepared by freeze-drying a composition solution containing the compound components (including the above-mentioned active ingredients) in a non-dissolved state.
- the non-dissolved state means a state in which the blended component is neither dissolved in a solvent constituting the composition liquid in a clear state nor mixed in a clear state.
- Such a non-dissolved state includes a state in which a solid substance is present in a solvent in a state detectable by any means.
- the presence of a solid having a geometric mean particle size of 0.5 m or more can be detected.
- the upper limit of the geometric mean particle diameter (dynamic light scattering method or laser diffraction / scattering method) of these solid substances is not particularly limited, but is usually 20 m or less, preferably Is 15 m or less, and more preferably ⁇ .
- the solvent has a geometric mean particle diameter (dynamic light scattering method or laser diffraction. Scattering method) of 0.01 to 20 m, .05-15m, 0.15-15m, 0.2-15zm, 0.5-15m, 0.05-10m, 0.1-10m, 0.2-10! 11, or This includes the state in which solid matter in the range of 0.5 to 10 mm exists in a state detectable by any means.
- geometric mean particle diameter dynamic light scattering method or laser diffraction. Scattering method
- non-dissolved state examples include a state in which the components are not completely dissolved in the solvent but exist at a saturation or higher, and a state in which the components are present without being dissolved in the solvent, that is, The active ingredient insoluble or hardly soluble in the solvent may be suspended or turbid in the solvent.
- a method for specifically evaluating the undissolved state it is common to measure the turbidity of a sample.However, a method of measuring the particle size distribution of insoluble matter using a particle size distribution measuring device may be used. it can.
- insoluble state means that the active ingredient and the carrier described below are not dissolved in a solvent, but also includes, for example, the above liposomes, Mike's capsule, cyclodextrin, and dendrimer.
- the effective component held by a first-class support is dissolved in a solvent while being held by the first support, but is used to include the case where a support such as a liposome is in a non-dissolved state.
- the compound component in the non-dissolved state is an active ingredient, or a carrier or another optional component (described later) to be mixed in the composition liquid together with the active ingredient.
- the distinction is not particularly limited.
- the solvent constituting the composition liquid together with the components is not particularly limited.
- examples thereof include water, isotonic solutions such as physiological saline, culture media, and buffers.
- the solvent may contain an organic solvent as long as the final preparation (the freeze-dried composition for pulmonary administration) does not adversely affect the human body.
- examples of such an organic solvent include methanol, ethanol, isopropyl alcohol, acetone, and ethylene glycol.
- the freeze-dried composition of the present invention may be composed of the above-mentioned active ingredient alone or an active ingredient and a carrier as long as the final preparation satisfies the above-mentioned disintegration index.
- a carrier may be blended.
- the type and amount of the carrier that can be used are as follows.
- the final lyophilized composition prepared by freeze-drying a non-dissolved composition solution containing the active ingredient together with the active ingredient is as follows ( Characteristics of i) to (iii):
- the decay index is 0.05 or more
- a carrier conventionally used for freeze-drying can be used arbitrarily and in a desired amount.
- Such carriers include hydrophobic amino acids such as palin, leucine, isoleucine, and phenylalanine, and salts or amides thereof; hydrophilic amino acids such as glycine, proline, alanine, arginine, and glutamic acid, and salts thereof. Or an amide; a derivative of an amino acid; a dipeptide or a tripeptide having the same or two or more of the above amino acids, or a salt or amide thereof. These can be used alone or in combination of two or more.
- the salt of an amino acid or a peptide a salt with an alkali metal such as sodium or potassium or an alkaline earth metal such as calcium; an inorganic acid such as phosphoric acid or hydrochloric acid; an addition salt with an organic acid such as sulfonic acid;
- the amide include L-mouth isinamide hydrochloride.
- amino acids such as] 3-alanine, ⁇ -aminobutyric acid, homoserine, taurine and the like.
- monosaccharides such as glucose; disaccharides such as sucrose, maltose, lactose and trehalose; sugar alcohols such as mannitol; oligosaccharides such as cyclodextrin; polysaccharides such as dextran 40 and pullulan.
- Polyhydric alcohols such as polyethylene glycol; fatty acid sodium such as sodium caprate; and the like.
- preferred carriers that allow the active ingredient to efficiently reach the lung include, specifically, hydrophobic amino acids such as isoleucine, valine, leucine, and fenylalanine, or salts or amides thereof; leucyl-parin, leucyl-feline.
- hydrophobic dipeptides such as luranine and phenylalanyl-isoleucine
- hydrophobic peptides such as leucyl-leucyl-leucine and leucyl-leucyl-valine.
- in addition to the above-mentioned hydrophobic amino acids or their salts or amides, hydrophobic dipeptides and aqueous tripeptides, basic amino acids or these basic amino acids or their derivatives are considered from the viewpoint of micronization and formulation stability. It is preferable to use a combination of a salt or amide, a basic peptide and a basic peptide.
- the basic amino acids include arginine, lysine, histidine and salts thereof.
- the content ratio of the active ingredient (drug) contained in the lyophilized composition is not particularly limited, but the content is 20 mg or less, preferably 10 mg or less, more preferably 5 mg or less, further preferably 2 mg or less. Particularly preferably, lmg or less can be exemplified.
- the mixing ratio of the carrier is not particularly limited as long as the final freeze-dried composition satisfies the characteristics (i) to (iii).
- the lyophilized composition should be less than 100% by weight, usually 0.1 to less than 100% by weight. Or less than 100% by weight, more preferably 10 to less than 100% by weight, particularly preferably 20 to less than 100% by weight.
- the freeze-dried composition targeted by the present invention further includes a freeze-dried composition in addition to the above-mentioned components, as long as it satisfies the characteristics (i) to (iii) and does not impair the effects of the present invention.
- Various additives may be blended to stabilize the active ingredient in the previous composition liquid, stabilize the active ingredient after drying, prevent adsorption of the active ingredient to the container, and the like.
- it may contain human serum albumin, inorganic salts, surfactants, buffers and the like.
- the surfactant any surfactant that is generally applied to pharmaceuticals can be used regardless of whether it is an anionic surfactant, a cationic surfactant, or a nonionic surfactant.
- Preferable examples include nonionic surfactants such as polyoxyethylene sorbin fatty acid ester (for example, Tween type surfactant) and sorbitan trioleate.
- the method of freeze-drying the active ingredient and a composition solution that may contain an optional ingredient is not particularly limited, and a general freeze-dried preparation such as a ready-to-use injection (freeze-dried composition) may be used.
- the freeze-drying method conventionally used for the production of the product can be used. Although there is no limitation, in some cases, freeze-drying can be performed rapidly by devising freeze-drying conditions. .
- the freeze-dried composition of the present invention can be made into fine particles suitable for pulmonary administration by applying a predetermined air impact. Therefore, the freeze-dried composition of the present invention is suitable for preparing a powder formulation for pulmonary administration, a so-called pre-preparation of a powder formulation for pulmonary administration (a freeze-dried composition for preparation of a powder formulation for S ⁇ administration). It can be provided as
- the lyophilized composition of the present invention includes the following specific embodiments: 101.
- a lyophilized composition solution containing the ingredients in a non-dissolved state which is prepared by lyophilizing the following (i) A lyophilized composition for pulmonary administration having the characteristics of) to (iii):
- the decay index is equal to or greater than 0.05
- the average particle size is less than or equal to 10 microns due to the impact of air having an air velocity of at least lm / sec and an air flow rate of at least 17 ml / sec. Fine particles with an effective particle ratio of 10% or more.
- the average particle size is less than 10 microns or the effective particle ratio is 1 due to the impact of air having an air velocity in the range of 1 to 30 Om / sec and an airflow of at least 17 ml / sec. 101.
- the impact of air with an air velocity of at least 1 m / sec and an air flow rate of at least 20 ml / sec reduces the particles to an average particle size of less than 10 microns or an effective particle fraction of more than 10%.
- the average particle size is less than 10 microns or the effective particle ratio is 1 due to the impact of air having an air velocity of at least lm / sec and an air flow rate in the range of 17 ml / sec to 15 L / sec. 101.
- composition of embodiment 101 comprising a low molecular weight drug as an active ingredient.
- the freeze-dried composition according to item 101 comprising a high molecular drug such as a protein or a nucleic acid as an active ingredient.
- the lyophilized composition according to item 108 comprising a low-molecular-weight drug as an active ingredient and at least one selected from the group consisting of amino acids, dipeptides, peptides, and saccharides as carriers.
- High-molecular-weight drugs such as proteins and nucleic acids as active ingredients, and at least one selected from the group consisting of amino acids, dipeptides, tripeptides, and saccharides as carriers.
- High-molecular-weight drugs such as proteins and nucleic acids as active ingredients, and at least one selected from the group consisting of amino acids, dipeptides, tripeptides, and saccharides as carriers.
- the lyophilized composition of embodiment 109, wherein the composition comprises:
- the freezing according to item 111 comprising a low-molecular-weight drug as an active ingredient, and at least one selected from the group consisting of a hydrophobic amino acid, a hydrophobic peptide, and a hydrophobic tripeptide as a carrier. Dry composition.
- a freeze-dried composition according to item 101 which is prepared by freeze-drying a composition liquid containing the ingredients in a non-dissolved state and has the following characteristics (i) to (iii):
- the decay index is in the range of 0.05 to 1.5
- the average particle size is reduced by the impact of an air velocity in the range of 1 to 30 Om / sec and an air flow rate of 17 ml / se (; Fine particles with a particle size of 0 micron or less or an effective particle ratio of 10% or more.
- the present invention provides a dry powder preparation having a particle diameter suitable for pulmonary administration by pulverization by micronizing a lyophilized composition contained in a container in a non-powder state.
- a dry powder formulation for pulmonary administration The method can be carried out by subjecting the lyophilized composition contained in a non-powder container to a specific air impact.
- the non-powder-shaped lyophilized composition of the present invention having a disintegration index of 0.05 or more, which is prepared by lyophilizing a composition solution containing the ingredients in a non-dissolved state, is described in detail below. This can be carried out by bombarding the air with an air velocity of sec and an air flow of at least 17 ml / sec, whereby the non-powder lyophilized composition has an average particle size of less than 10 microns.
- an effective particle ratio (Fine Particle Fraction) of 10% or more, preferably 20% or more, more preferably 25% or more, further preferably 30% or more, particularly preferably Can be prepared into a dry powder formulation having a fine particle form of 35% or more.
- the average particle diameter of the fine particles means an average particle diameter generally used in the art for PJ: filler, and specifically, not a geometric particle diameter but an air particle. It shows the dynamic mean particle size (mass median aerodynamic diameter, MMAD).
- the average aerodynamic particle size can be determined by a conventional method. Specifically, the aerodynamic average particle diameter is calculated, for example, by using a dry particle size distribution analyzer (Amherst Process Instrument, Inc., USA, USA) equipped with an aerobicizer as an artificial lung model, a twin impinger (GW Hallworth). and DG Westmoreland: J. Pharm. Pharmacol., 39, 966-972 (1987), U.S. Pat. No. 6,153,224); Can be measured. B. Olsson et al.
- a composition liquid containing the ingredients in a non-dissolved state is contained in a container, and lyophilized in this state to produce a non-powder lyophilized composition.
- the above-mentioned air impact can be applied to the composition by introducing air into a container containing the composition. In this case, freeze Since the drying process and the powder formulation process can be performed using the same container, there is no problem of loss ⁇ contamination due to subdivision.
- the means for applying the air impact to the freeze-dried composition is not particularly limited, but preferably includes a dry powder inhalation device described in (3) below.
- the method for producing a dry powder preparation for pulmonary administration of the present invention is characterized in that a patient using the dry powder preparation for pulmonary administration passes the lyophilized composition contained in a container at the time of use (at the time of inhalation). Another feature is that it can be prepared into a powder formulation with a particle size suitable for pulmonary administration.
- a method for producing a dry powder preparation for pulmonary administration wherein the freeze-dried composition is micronized so that the average particle diameter is 10 microns or less or the effective particle ratio is 10% or more.
- the embodiment 205 wherein the lyophilized composition contains a low molecular drug as an active ingredient and at least one selected from the group consisting of amino acids, dipeptides, tripeptides and the like as a carrier.
- the method for producing a dry powder preparation for transpulmonary administration according to the above.
- a lyophilized composition containing, as an active ingredient, a macromolecular drug such as a protein or nucleic acid, and as a carrier at least one selected from the group consisting of amino acids, dipeptides, tripeptides, and the like.
- a macromolecular drug such as a protein or nucleic acid
- a carrier at least one selected from the group consisting of amino acids, dipeptides, tripeptides, and the like.
- lyophilized composition contains a low-molecular-weight drug as an active ingredient and at least one selected from the group consisting of hydrophobic amino acids, hydrophobic dipeptides and hydrophobic tripeptides as a carrier.
- a low-molecular-weight drug as an active ingredient and at least one selected from the group consisting of hydrophobic amino acids, hydrophobic dipeptides and hydrophobic tripeptides as a carrier.
- the lyophilized composition comprises, as an active ingredient, a macromolecular drug such as proteins or nucleic acids, and at least one selected from the group consisting of hydrophobic amino acids, hydrophobic dipeptides, and hydrophobic tripeptides as a carrier.
- a macromolecular drug such as proteins or nucleic acids
- hydrophobic amino acids such as proteins or nucleic acids
- hydrophobic dipeptides such as proteins or nucleic acids
- hydrophobic tripeptides as a carrier.
- a device having means capable of bombarding the lyophilized composition in a container with air having an air velocity in the range of 1 to 30 Oi / sec and an air flow of at least 17 ml / sec. 201.
- a device having means capable of bombarding the lyophilized composition in a container with air having an air velocity of at least 1 m / sec and an air flow rate of at least 2 O ml / sec 201.
- composition solution containing the ingredients in a non-dissolved state The following properties are prepared by freeze-drying a composition solution containing the ingredients in a non-dissolved state:
- the average particle size is 1 due to the impact of air having an air velocity in the range of 1-30 Om / sec and an air flow rate in the range of 17 ml / sec to 15 L / sec.
- the device consists of (1) a means capable of applying an air impact to the non-powder lyophilized composition to such an extent that it can be micronized, and (2) inhaling the micronized powdery lyophilized composition to the user.
- the provision of a means capable of administration enables both the micronization of the lyophilized composition and the inhalation administration to the user.
- the means (2) can also be referred to as a means for introducing the air with the air impact into a container containing the freeze-dried composition. (2) can also be referred to as a means for discharging the powdered microparticles in the container from the container.
- any of conventionally known devices and devices to be developed in the future can be used as long as they have such means.
- the means (1) can be specifically realized by introducing air capable of giving the above-described air impact to the freeze-dried composition contained in the container into the container.
- the means (1) may be a means capable of applying an air impact having an air velocity of at least lm / sec and an air flow rate of at least 17 ml / sec to the freeze-dried composition in the container.
- the dry powder preparation prepared in a form suitable for pulmonary administration can be inhaled to a user, such as a patient, by or through the means of (2).
- the means (2) may be provided with, for example, a room or a channel so that the composition can be further finely divided or dispersed.
- the dry powder inhalation device includes the spray-type dry powder inhalation device listed in (a) below and the self-inhalation type dry powder inhalation device listed in (b) below.
- (a-1) A device used for inhalation, in which a lyophilized composition stored in a non-powder state in a container is atomized and used for inhalation,
- the needle portion is pierced into a stopper that seals a container to communicate the air injection flow path and the discharge flow path with the inside of the container, and the air is fed from the air injection flow path into the container by the air pressure feeding means.
- a dry powder inhalation device characterized in that the freeze-dried composition is atomized by the impact of blast air, and the obtained microparticles are discharged from an inlet through the discharge channel.
- the pneumatic feeding means is a manual type, and is provided with a bellows body having a suction port with a suction valve and a discharge port with a discharge valve, and shrinks the bellows body in a state where the P and suction valves are closed.
- the discharge valve By opening the discharge valve, the air in the integrated vent is pressure-fed into the container through the air injection flow path of the needle portion communicating with the discharge port, and the elastic restoring force is obtained with the discharge valve closed and the suction valve opened.
- the dry powder suction device according to (a-1) wherein the bellows body is extended to introduce air into the bellows unit.
- (b-1) a device used for inhaling a freeze-dried composition contained in a container in a non-powder state, the device comprising:
- a needle portion having a suction channel, a needle portion having an air introduction channel, and a suction port communicating with the suction channel;
- a dry powder inhalation device characterized by the composition.
- (b-3) The dry powder inhalation device according to (b-1) or (b-2), wherein the suction channel and the air introduction channel are formed in a needle portion.
- Means for introducing air into the container may be any means for introducing air from the outside at normal pressure, and there is no need to use compressed air such as a jet mill.
- the means for introducing air from the outside is not particularly limited.
- external air is artificially injected into the container.
- a self-inhalation type dry powder inhalation device external air is naturally sucked and introduced into the container by negative pressure in the container accompanying the user's inhalation dose. Means can be employed.
- the method of artificially injecting and introducing external air into the container is a method of automatically using any machine, even if it is manual. Is also good.
- the dry powder inhalation device used in the present invention can detect the impact (injection pressure) of external air (air) introduced (inflow) into the container by the air introduction means. It can be used to micronize freeze-dried preparations stored in a non-powder state in a container.
- the container used here can be, for example, one that can be subjected to freeze-drying, and is not particularly limited in material, shape, and the like.
- the material include a polyolefin-based plastic such as polyethylene, polypropylene, and polystyrene, glass, and aluminum.
- the shape include cylindrical, cup-shaped, triangular prism (triangular pyramid), square prism (tetragonal pyramid), hexagonal prism (hexagonal pyramid), octagonal prism (octagonal pyramid), and polygonal prism (polygonal pyramid). it can.
- the volume of the container containing the lyophilized composition is 0.2 to 50 ml, preferably 0.2 to 25 ml, and more preferably 1 to 15 ml. Can be used. Further, it is desirable to use a container having a body diameter (inner diameter) of ⁇ 2 to 100 ⁇ , preferably ⁇ 2 to 75 mm, more preferably ⁇ 2 to 50 mm.
- the amount of the lyophilized composition contained in such a container is preferably a unit dose (single dose) or several times, specifically, an amount containing the active ingredient in two or three doses. Good. It is more preferably an amount containing a unit dose (single dose) of the active ingredient.
- the specific amount of the lyophilized composition also depends on the type and blending amount of the active ingredient contained in the lyophilized composition, and is not particularly limited by being appropriately selected from the amounts that can be reached and P, It is usually at most 30 mg, preferably at most 20 mg, more preferably at most 10 mg, particularly preferably at most 5 mg.
- the air impact caused by the external air (air) introduced into the container is at least the air flow rate at which air flows into the container by one or several inhalation operations by a human. And the resulting air velocity.
- the human inhaled air flow rate is usually 5-300 L / min, more specifically 10-200 LZ min.
- an air-injection device having an air injection amount of 5 to: L 0 ml, preferably 10 to 50 ml can be used.
- the surface of the freeze-dried composition filled in the container can be adjusted so as to be subjected to an air impact generated by an air velocity of at least lm / sec.
- More preferred air impacts are those caused by an air velocity of at least 2 m / sec, more preferably those produced by an air velocity of at least 5 m / sec, and even more preferably those produced by an air velocity of at least 10 m / sec. is there.
- the upper limit of the air impact is not particularly limited, but may be, for example, an impact generated by an air velocity of 30 Oni / sec.
- the upper limit is an impact caused by an air velocity of 25 Om / sec, more preferably an impact caused by an air velocity of 20 Om / sec, and even more preferably by an air velocity of 150 m / sec. The resulting shock.
- the air impact is not particularly limited as long as it is generated by air having an air velocity within a range composed of a lower limit and an upper limit arbitrarily selected from the above, and is, for example, 1 to 300 m / sec, 1-250 m / sec, 2-250 m / sec, 5-250 m / sec, 5-200 m / sec, 10-200 m / sec, 10 Impacts caused by air velocities in the range of ⁇ 150 m / sec.
- the velocity of the air applied to the freeze-dried composition can be measured as described below. That is, in the injection-type dry powder inhalation device shown in Example 1 described below, the lyophilized composition in which the air stored in the bellows body 10 is forcibly filled into the container from the air injection channel 3 is used. (Cake-freeze-dried composition: hereinafter also referred to as “freeze-dried cake”), and is subjected to air impact, and the resulting fine particles are discharged from discharge path 4.
- the flow rate of air flowing through the air injection flow path 3 can be calculated by dividing the amount of air stored in the port 10 by the time for sending the air into the container.
- the air flow rate is divided by the cross-sectional area of the flow path that introduces air into the container, such as the air injection flow path 3, so that freeze-drying is performed.
- the injection type drying designed so that the hole diameter of the air injection passage 3 is ⁇ 1.2 thigh, the hole diameter of the discharge path ⁇ .8 thigh, and the amount of air stored in the bellows body 10 is about 2 Oml.
- the air flowing from the air introduction passage 17 impacts the freeze-dried cake, the resulting fine particles are removed. Since a mechanism for discharging air from the suction flow path 16 is employed, the hole diameter of the air introduction flow path 17 and the suction flow path 16 determines the air flow rate flowing through the flow path. Therefore, the air velocity applied to the lyophilized composition contained in the container is calculated by measuring the flow rate of air flowing through the air introduction channel 17 and dividing the measured value by the cross-sectional area of the nozzle of the air introduction channel 17. be able to.
- European Pharmacopoeia European Pharmacopoeia, Third Edition Supplement 2001, pll3- 115
- a suction device including a container is attached to the mouth of a device A (Apparatus A) (Twin pinger: Copley I: II, UK), and a Flow Meter (0FL0C DPM Measure the flow rate of air flowing through the air introduction channel 17 using -3).
- a self-inhaling dry powder inhalation device was designed with a hole diameter of the air introduction channel 17 of 1.99 thigh and a suction channel of 1.99 thigh.
- the flow rate of air applied to the lyophilized composition filled in the container may be at least 17 ml / sec.
- the air flow rate is preferably at least 2 Oml / sec, more preferably at least 25 ml / sec.
- the upper limit of the air flow rate is not particularly limited, but may be, for example, 900 L / min.
- the upper limit is preferably 15 L / sec, more preferably 10 L / sec, further preferably 5 L / sec, still more preferably 4 L / sec, and particularly preferably 3 L / sec.
- the air flow rate may be within a range composed of a lower limit and an upper limit arbitrarily selected from the above, and is not particularly limited.
- the dry powder inhalation device used in the present invention is a means for increasing the impingement pressure of air introduced from the outside, such as a needle portion having an air introduction passage or an air ejection passage described in detail in the embodiments.
- Means may be provided for discharging air from a discharge port of the flow channel, preferably a discharge port provided with fine pores, in a state of being close to the lyophilized composition contained in the container bottom.
- the hole diameter of the flow passage outlet is not particularly limited because the preferable range varies depending on the size of the container and the like, but the diameter ⁇ 0.3 to: L 0 mm, preferably 0.5 to 5 mm , More preferably 0.8-5 mm, even more preferably 1-4 mm.
- the lyophilized composition contained in the container in a non-powder state can be micronized.
- the degree of the fine particles may be a particle diameter suitable for pulmonary administration, and may be 10 xm or less, preferably 5 m or less as the average particle diameter.
- the freeze-dried composition stored in a non-powder state in a container is atomized by the impact of air, and the resulting microparticles are used for inhalation of a dry powder for pulmonary administration.
- Input device
- a needle part having an air injection flow path, a needle part having a discharge flow path, air pressure feeding means for sending air to the air injection flow path of the needle part, and a suction port communicating with the discharge flow path of the needle part.
- the needle portion is pierced into a stopper that seals the container to communicate the air injection flow path and the discharge flow path with the inside of the container, and the air is fed into the container through the air injection flow path by the air pressure feeding means.
- the transpulmonary administration according to item 300 wherein the freeze-dried composition is atomized by the impact of the blast air, and the obtained microparticles are discharged from the inlet through the discharge channel. Dry powder inhalation device for use.
- a needle portion having a suction channel, a needle portion having an air introduction channel, and a suction port communicating with the suction channel;
- the lyophilized composition is atomized by injection of air into the container so as to have an average particle diameter of 10 microns or less, or an effective particle ratio of 10% or more, and is discharged from the suction port.
- 301. The dry powder sucking device for transpulmonary administration according to item 301, wherein the device is configured as described above.
- 305. An embodiment in which the air injection flow path and the discharge flow path are formed in one needle section.
- the freeze-dried composition is configured to be finely divided by inhalation by a subject so that the average particle size is 10 microns or less, or the effective particle ratio is 10% or more, and is discharged from the inhalation port.
- the dry powder inhalation device for transpulmonary administration according to item 302, wherein the device is characterized in that:
- a guide portion for guiding the holder portion in the axial direction of the needle portion; and, when the container is held by the holder portion, the container is advanced toward a needle tip of the needle portion to cause the container to move forward.
- a holder operating portion configured to be able to operate the operating body with a force smaller than a force required to pierce the needle stopper into the needle portion; and supporting the needle portion; and A housing for providing the guide portion and the holder operating portion;
- the housing is formed in a cylindrical shape, the suction port is formed at the tip of the housing, and a storage chamber for housing the container via the holder is formed in the housing.
- the needle portion is disposed in the housing so that the needle point faces the storage chamber, and an introduction port for introducing outside air by communicating with an air introduction flow path of the needle portion is provided on the wall of the eight housing.
- the eight housings are formed by an eight housing main body having an access port for the container formed at a position where the holder portion is retracted, and a lid of the access door connected to the eight housing main body by a hinge.
- the transpulmonary administration according to claim 310 further comprising: the mechanism for retracting a part from the needle tip; and wherein the lid is configured to also serve as an operating body of the mechanism. Dry powder inhalation device.
- the dry powder inhalation system for transpulmonary administration of the present invention is characterized in that a freeze-dried composition which is present in a non-powder state without being subjected to a treatment such as pulverization while being freeze-dried in a container is subjected to the impact of air.
- a lyophilized composition having a composition capable of forming fine particles having an average particle diameter of 10 microns or less or an effective particle ratio of 10% or more in the container, and an inhalation device provided with predetermined means.
- the according to the dry powder inhalation system for pulmonary administration when the user uses the freeze-dried composition provided in a non-powder state (at the time of P entry), the average particle size is a dosage form suitable for pulmonary administration. It can be prepared and administered (taken) by itself in a dry powder formulation consisting of fine particles with a diameter of 10 microns or less or an effective particle ratio of 10% or more.
- Such a freeze-dried composition is prepared by freeze-drying a composition solution containing the ingredients in a non-dissolved state, and has the following characteristics:
- the decay index is 0.05 or more
- the freeze-dried composition is subjected to a freeze-drying treatment in a container and is contained in the container.
- the amount of the lyophilized composition contained in the container is preferably a unit dose (single dose) or several times, specifically, an amount containing the active ingredient in two or three doses. No. It is more preferably an amount containing a unit dose (single dose) of the active ingredient.
- the specific amount of the lyophilized composition contained in the container also depends on the type and amount of the effective ingredient contained in the lyophilized composition, and is appropriately selected from inhalable amounts and is not particularly limited, but is usually limited. It is at most 30 mg, preferably at most 20 mg, more preferably at most 10 mg, particularly preferably at most 5 mg.
- the dry powder inhalation device includes (1) an air impact applying means (or air introducing means) and (2) a fine particle discharging means (or inhalation administration means), and (2) a freeze-dried composition in a non-powder state by the air impact applying means.
- Air is introduced (inflow) into the container accommodating the lyophilized composition by utilizing the impact (injection pressure) of the introduced (inflow) air, and the freeze-dried composition is finely divided.
- the preferred dry powder inhalation system for pulmonary administration of the present invention is used, at least at the time of use, in combination with the above-mentioned container containing the lyophilized composition of the present invention and the above-mentioned dry powder inhalation device.
- the dry powder inhalation system for pulmonary administration of the present invention comprises, at least before use by inhalation, a container containing the freeze-dried composition of the present invention described above and the dry powder inhalation device described above. It is.
- air is introduced into the container containing the lyophilized composition of the present invention using the dry powder inhalation device described above, and at least li / sec is applied to the lyophilized composition present inside.
- a bombardment with air having an air velocity of at least 17 ml / sec and an air flow rate of at least 17 ml / sec, it can be effectively used for pulmonary administration by pulmonary injection or by inhalation Dry powder formulations with effective particle proportions can be prepared.
- the average particle diameter is 10 microns or less, preferably 5 microns
- the effective particle ratio (Fine Particle Fraction) that can be used effectively for pulmonary administration by injecting P is 10% or more, preferably 20% or more, more preferably 25% or more, It is more preferably at least 30%, particularly preferably at least 35%.
- the prepared dry powder preparation can be inhaled and pulmonary administered to a user as it is.
- the dry powder inhalation system for pulmonary administration of the present invention is a system for producing a dry powder formulation suitable for pulmonary administration by PJ: injection, and also administers the dry powder formulation to the user by pulmonary administration. It can be said that it is an administration system.
- the dry powder inhalation system for pulmonary administration of the present invention includes the following specific embodiments:
- Fine particles having an average particle size of 10 microns or less or an effective particle ratio of 10% or more due to the impact of air having an air velocity of at least lm / sec and an air flow rate of at least 17 ml / sec. become
- a container containing a lyophilized composition having:
- a transpulmonary device used in combination with a device having a means capable of applying the above-described air impact to the freeze-dried composition in the container and a means for discharging the finely divided powdery freeze-dried composition. Dry powder inhalation system for administration.
- the dry powder inhalation system for transpulmonary administration according to item 401, wherein the container containing the lyophilized composition is a container containing the lyophilized composition containing a single dose of the active ingredient.
- the air impact described in (iii) is caused by air having an air velocity in the range of 1 to 30 Om / sec and an air flow rate of at least 17 ml / sec. Dry powder inhalation system for pulmonary administration.
- Embodiment 401 wherein the air impact described in (iii) is caused by air having an air velocity of at least 1 m / sec and an air flow rate in the range of 17 ml / sec to 15 L / sec.
- Embodiment 401 wherein the lyophilized composition has a property of being converted into fine particles having an average particle size of 5 m or less or an effective particle ratio of 20% or more when subjected to air impact. Dry powder inhalation system for pulmonary administration as described
- the dry powder inhalation system for transpulmonary administration according to item 401, wherein the lyophilized composition contains a high molecular drug such as a protein or nucleic acid as an active ingredient.
- the dry powder inhalation system for transpulmonary administration according to item 401, wherein the freeze-dried composition contains the nucleic acid as an active ingredient in a state of being held on a carrier.
- the lyophilized composition wherein the lyophilized composition contains a low molecular drug as an active ingredient and at least one selected from the group consisting of amino acids, dipeptides, tripeptides, and saccharides as a carrier.
- 410. The dry powder inhalation system for pulmonary administration according to 410.
- the lyophilized composition contains a macromolecular drug such as a protein or nucleic acid as an active ingredient and at least one selected from the group consisting of amino acids, dipeptides, tripeptides, and saccharides as a carrier.
- a macromolecular drug such as a protein or nucleic acid
- amino acids, dipeptides, tripeptides, and saccharides as a carrier.
- the freeze-dried composition comprises a low molecular drug as an active ingredient and at least one selected from the group consisting of hydrophobic amino acids, hydrophobic dipeptides, and hydrophobic tripeptides as a carrier.
- the dry powder inhalation system for transpulmonary administration according to embodiment 413.
- the lyophilized composition is a polymer drug such as proteins or nucleic acids as an active ingredient, and at least one selected from the group consisting of hydrophobic amino acids, hydrophobic peptides and hydrophobic peptides as a carrier.
- Fine particles of the lyophilized composition stored in a non-powder state in a container, and the obtained fine particles A needle part having an air injection flow path, a needle part having a discharge flow path, and an air pressure feeding means for sending air to the air injection flow path of the needle part. And a suction port communicating with a discharge flow path of the needle portion,
- the needle portion is pierced into a stopper that seals the container to communicate the air injection flow path and the discharge flow path with the inside of the container, and the air is fed into the container through the air injection flow path by the air pressure feeding means.
- the dry powder inhalation device for transpulmonary administration is characterized in that the freeze-dried composition is atomized by the impact of blast air, and the obtained microparticles are discharged from an inlet through the discharge channel. Or ii) a device used to atomize the lyophilized composition stored in a non-powder state in a container, and to inhale the obtained fine particles by a subject,
- a needle portion having a suction channel, a needle portion having an air introduction channel, and a suction port communicating with the suction channel;
- a holder for holding a container in which a freeze-dried composition in the form of a non-powder cake that is micronized by being subjected to air shock and sealed with a stopper, and the freeze-dried composition in the container Means for applying an air impact to the container, and a means for sucking the lyophilized composition in the form of particles, which has been atomized by the air impact, from the inside of the container, and a dry powder inhalation device comprising:
- a bow I port that communicates with the bow I channel of the needle portion;
- a guide portion for guiding the holder portion in the axial direction of the needle portion; and, when the container is held by the holder portion, the container is advanced toward a needle tip of the needle portion to cause the container to move forward.
- a holder operating portion configured to be able to operate the operating body with less force required to pierce the needle stopper into the needle portion; supporting the needle portion; and
- a housing for providing the guide portion and the holder operating portion;
- a container containing a lyophilized composition having:
- the present invention comprises preparing a lyophilized composition in a non-powder state into a micronized state which can be administered pulmonary at the time of use (at the time of administration), and inhaling and administering the micronized dry powder preparation.
- the pulmonary administration method is a dry powder inhalation system for pulmonary administration of the present invention described in detail in section (4), preferably a composition liquid containing the components described in detail in section (1) in a non-dissolved state.
- the decay index is 0.05 or more
- the composition is micronized so that the average particle diameter is 10 ⁇ m or less or the effective particle ratio is 10% or more.
- a pulmonary administration method comprising administering to a user by inhalation.
- the pulmonary administration method of embodiment 501 wherein the lyophilized composition comprises a single dose of the active ingredient. 503.
- the freeze-dried composition is contained in a container, and the finely divided powder is formed into a powdery form in which fine particles are formed by a means capable of giving the above-described air impact to the freeze-dried composition in the container. 501.
- the transpulmonary administration method of embodiment 501 wherein the method is prepared using a device provided with a means for discharging the lyophilized composition from the container.
- transpulmonary administration method of embodiment 503, wherein the lyophilized composition has a disintegration index in the range of 0.05 to 1.5.
- the air impact described in (iii) is caused by air having an air velocity in the range of 1-30 Om / sec and an air flow rate of at least 17 ml / sec. Pulmonary administration method.
- the lyophilized composition contains a low-molecular-weight drug as an active ingredient and at least one selected from the group consisting of amino acids, dipeptides, tripeptides, and garments as a carrier.
- Item 509 The pulmonary administration method according to Item 509.
- the lyophilized composition is a polymer drug such as proteins and nucleic acids as an active ingredient, and a carrier consisting of amino acids, dipeptides, tripeptides, and saccharides as carriers.
- the transpulmonary administration method according to item 510 which comprises at least one selected from the group consisting of:
- the freeze-dried composition comprises a low molecular drug as an active ingredient and at least one selected from the group consisting of hydrophobic amino acids, hydrophobic dipeptides, and hydrophobic tripeptides as a carrier, 512.
- the pulmonary administration method according to item 512.
- the lyophilized composition is a polymer drug such as proteins or nucleic acids as an active ingredient, and at least one selected from the group consisting of hydrophobic amino acids, hydrophobic peptides and hydrophobic peptides as a carrier.
- transpulmonary administration method wherein the administration is carried out with the fine particles having a mean particle diameter of 5 ⁇ m or less or an effective particle ratio of 20% or more.
- the lyophilized composition is prepared by lyophilizing a composition solution containing the ingredients in a non-dissolved state.
- the average particle size is 1 due to the impact of air having an air velocity in the range of 1 to 300 m / sec and an air flow rate in the range of 17 ml / sec to 15 L / sec. Fine particles with a particle size of 0 microns or less or an effective particle ratio of 10% or more
- the invention relates to the use of the lyophilized composition in non-powder form for pulmonary administration by inhalation.
- Such uses include the following specific embodiments:
- composition liquid containing the ingredients in a non-dissolved state having the following properties: (0 having a non-powder cake-like form,
- the lyophilized composition for pulmonary administration by inhalation, wherein the lyophilized composition is powdered into fine particles having the above average particle diameter or effective particle ratio.
- a lyophilized composition for pulmonary administration according to item 601, wherein the lyophilized composition comprises a single dose of the active ingredient.
- the lyophilized composition is contained in a container, and the finely divided powder is provided with a means capable of applying the above-described air impact to the lyophilized composition in the container and the finely divided powdery form. 601.
- a lyophilized composition for pulmonary administration according to item 603, wherein the lyophilized composition has a disintegration index in the range of 0.05-1.5.
- the lyophilized composition is subjected to the impact of air having an air velocity of at least 2 m / sec and an air flow rate of at least 17 ml / sec, resulting in an average particle size of less than 10 microns or an effective particle fraction of 1 0% or more of fine particles.
- Item 603. Use of the freeze-dried composition according to Item 603 for pulmonary administration.
- the lyophilized composition has an average particle size of 10 microns due to the impact of air having an air velocity in the range of 1-30 Om / sec and an air flow rate of at least 17 ml / sec. 603.
- the lyophilized composition is subjected to the impact of air having an air velocity of at least 1 m / sec and an air flow rate of at least 20 ml / sec, resulting in an average particle size of less than 10 microns or an effective particle fraction of 1 603.
- the lyophilized composition is subjected to the impact of air having an air velocity of at least 1 m / sec and an air flow rate in the range of 17 ml / sec to 15 L / sec, resulting in an average particle size of 10 603.
- the lyophilized composition which is subjected to air impact to become fine particles having an average particle diameter of 5 microns or less or an effective particle ratio of 20% or more,
- freeze-dried composition for transpulmonary administration according to item 603, wherein the freeze-dried composition contains a low-molecular-weight drug as an active ingredient.
- a lyophilized composition for transpulmonary administration according to item 603, wherein the lyophilized composition contains a high molecular drug such as a protein or nucleic acid as an active ingredient.
- freeze-dried composition for transpulmonary administration according to item 603, wherein the freeze-dried composition comprises a nucleic acid held in a carrier as an active ingredient.
- the lyophilized composition contains a low molecular drug as an active ingredient and at least one selected from the group consisting of amino acids, dipeptides, tripeptides, and saccharides as a carrier.
- a low molecular drug as an active ingredient
- at least one selected from the group consisting of amino acids, dipeptides, tripeptides, and saccharides as a carrier.
- the lyophilized composition contains a macromolecular drug such as a protein or nucleic acid as an active ingredient and at least one selected from the group consisting of amino acids, dipeptides, tripeptides, and the like as a carrier.
- the lyophilized composition contains a low-molecular-weight drug as an active ingredient and at least one selected from the group consisting of a hydrophobic amino acid, a hydrophobic dipeptide, and a hydrophobic tripeptide as a carrier.
- the lyophilized composition is a polymer drug such as proteins or nucleic acids as an active ingredient, and at least one selected from the group consisting of hydrophobic amino acids, hydrophobic peptides and hydrophobic peptides as a carrier.
- a freeze-dried composition is prepared by freeze-drying a composition solution containing the ingredients in a non-dissolved state.
- the decay index is in the range of 0.05 to 1.5
- the average particle size is 10 microns due to the impact of air having an air velocity in the range of 1 to 30 Om / sec and an air flow rate in the range of 17 ml / sec to 15 L / sec. Less than or fine particles with an effective particle ratio of 10% or more
- freeze-dried composition for transpulmonary administration according to item 620, wherein the air flow rate is 20 ml / sec to 1 O L / sec.
- Use of freeze-dried composition for the production of dry powder formulation for pulmonary administration by P-entry For use for manufacturing.
- Such uses include the following specific embodiments:
- Fine particles having an average particle size of 10 microns or less or an effective particle ratio of 10% or more due to the impact of air having an air velocity of at least lm / sec and an air flow rate of at least 17 ml / sec. become
- a lyophilized composition having the following characteristics: used in the form of microparticles so that the above-mentioned average particle diameter or the above-mentioned effective particle ratio is obtained when used.
- a lyophilized composition for the manufacture of a dry powder formulation for pulmonary administration according to item 701, wherein the lyophilized composition has a disintegration index in the range of 0.05 to 1.5.
- the lyophilized composition is subjected to the impact of air having an air velocity of at least 2 m / sec and an air flow rate of at least 17 ml / sec, resulting in an average particle size of less than 10 microns or an effective particle fraction of less than 10 microns. 710.
- the lyophilized composition has an average particle size of 10 microns due to the impact of air having an air velocity in the range of 1-30 Oi / sec and an air flow rate of at least 17 ml / sec. Or fine particles with an effective particle ratio of 10% or more.
- the lyophilized composition is subjected to the impact of air having an air velocity of at least 1 m / sec and an air flow rate of at least 20 ml / sec, resulting in an average particle size of less than 10 microns or an effective particle fraction of 1
- the lyophilized composition is subjected to the impact of air having an air velocity of at least 1 m / sec and an air flow rate in the range of 17 ml / sec to 15 L / sec, resulting in an average particle size of 10 701.
- the transpulmonary lung according to item 701, wherein the lyophilized composition is a fine particle having an average particle size of 5 ⁇ m or less or an effective particle ratio of 20% or more when subjected to air impact.
- a lyophilized composition for the manufacture of a dry powder formulation for pulmonary administration according to item 701, wherein the lyophilized composition comprises a low molecular weight drug as an active ingredient.
- freeze-dried composition for producing a dry powder preparation for transpulmonary administration according to item 701, wherein the freeze-dried composition comprises a high molecular drug such as a protein or nucleic acid as an active ingredient.
- freeze-dried composition for producing a dry powder preparation for transpulmonary administration according to item 701, wherein the freeze-dried composition contains a nucleic acid as an active ingredient in a state of being held by a carrier.
- the lyophilized composition contains a low molecular weight drug as an active ingredient and at least one selected from the group consisting of amino acids, dipeptides, tripeptides, and saccharides as a carrier.
- a lyophilized composition for the manufacture of a dry powder preparation for pulmonary administration according to item 1.
- a lyophilized composition containing, as an active ingredient, a macromolecular drug such as a protein or nucleic acid, and a carrier containing at least one selected from the group consisting of amino acids, dipeptides, tripeptides, and saccharides.
- a macromolecular drug such as a protein or nucleic acid
- a carrier containing at least one selected from the group consisting of amino acids, dipeptides, tripeptides, and saccharides.
- the lyophilized composition contains a low-molecular-weight drug as an active ingredient and at least one selected from the group consisting of hydrophobic amino acids, hydrophobic dipeptides, and hydrophobic tripeptides as a carrier.
- a freeze-dried composition for the production of a dry powder preparation for pulmonary administration according to the above.
- the lyophilized composition contains as active ingredients high molecular drugs such as proteins and nucleic acids, and at least one selected from the group consisting of hydrophobic amino acids, hydrophobic dipeptides and hydrophobic tripeptides as carriers.
- high molecular drugs such as proteins and nucleic acids
- hydrophobic amino acids such as proteins and nucleic acids
- hydrophobic dipeptides such as proteins and nucleic acids
- hydrophobic tripeptides as carriers.
- a lyophilized composition for the manufacture of a dry powder formulation for pulmonary administration according to item 701, wherein the lyophilized composition is a water-soluble composition.
- the lyophilized composition is contained in a container, and the finely divided powder is provided with a means capable of applying the above-described air impact to the lyophilized composition in the container. 701.
- a lyophilized composition for the manufacture of a dry powder formulation for pulmonary administration according to item 701, wherein the lyophilized composition has a lyophilized composition having the following properties:
- (i) is prepared by freeze-drying a composition solution containing the components in a non-dissolved state
- the average particle size is 10 micron due to the impact of air having an air velocity in the range of 1 to 30 Om / sec and an air flow rate in the range of 17 ml / sec to 15 L / sec. Fine particles with a particle size of less than 10% or an effective particle ratio of 10% or more.
- the present invention relates to the use of the composition-insoluble composition liquid for producing a lyophilized composition used for preparing a dry powder preparation for pulmonary administration.
- a composition-insoluble composition solution used in the production of a lyophilized composition, a method for preparing the same, a method for preparing a lyophilized composition using the same, and a method for using the lyophilized composition (for transpulmonary administration) Preparation method of dry powder formulation) is as described above.
- the disintegration index of the non-powder-shaped lyophilized composition (lyophilized cake) of the present invention and the effective index which is an index for evaluating the delivery of the dry powder preparation having been finely powdered to the lungs are effective.
- the particle ratio (Fine Particles Fraction (%)) was calculated according to the following method.
- a container filled with the prepared non-powder-shaped lyophilized composition is attached to a dry powder inhalation device, and the device is subjected to a predetermined air impact to give a finely powdered powder formulation. a, Thid Edition Supplement 2001, P113-115), and directly discharged to Apparatus A (Twin Impinger: Copley, UK). Thereafter, the solvents entering Stage 1 and Stage 2 of the apparatus are respectively recovered, and each solvent of Stage 1 and Stage 2 is collected by a desired method according to the active ingredient in the lyophilized composition such as Bioassay method or HPLC. Quantification of the active ingredients contained therein [Lucas et al. (Pharm.
- the fraction that can be expected to be delivered to the lungs is Stage 2 (the aerodynamic particle diameter collected by this fraction is 6.4 xm or less).
- the ratio of the components is called the effective particle ratio (Fine Particles Fraction, which can be expected to reach the lungs), and is used as a criterion for evaluating suitability as an inhalant for pulmonary administration.
- the weight of the active ingredient contained in each of Stagel and Stage2 was quantified, and the obtained weight of the active ingredient in Stage2 was determined by the total weight of the injected active ingredient (Stagel and The total weight of active ingredients contained in Stage2: The value obtained by dividing by the following “Stagel + Stage2j” was calculated as the effective particle ratio (Fine Particles Fraction (%)).
- the suction rate of air is specified to be 60 L / min, ie, 1 L / sec. I followed.
- Embodiment 1 Dry powder inhalation device (injection type 1)
- the dry powder inhalation device is an air-injection type for atomizing non-powder units or several doses of lyophilized composition 2 contained in the bottom of the container 1 and sending it to the lung organs.
- a needle part 5 having an air injection flow path 3 and a discharge flow path 4, an intake member 7 having a P and an inlet 6 and attached to a base end of the needle part 5, and surrounding the needle part 5;
- a cylindrical safety cover 8 also holding the container 1 and a pneumatic feeding means 9 are provided.
- the pneumatic feeding means 9 is a manual type and has a cylindrical tongue integrated with 10 and the bellows body 10 has a suction port 12 with a suction valve 11 and a discharge port 14 with a discharge valve 13.
- the discharge port 14 is attached to a connection port 15 formed on the base end side of the air injection flow path 3 of the needle section 5, and communicates with the air injection flow path 3.
- PJ With the inlet valve 11 closed, compressive force is applied to the bellows body 10 to contract it, opening the discharge valve 13 and allowing air in the bellows body 10 to flow from the discharge port 14. Discharged into the container 1 through the air injection flow path 3.
- the bellows body 10 expands due to the elastic restoring force of the bellows body 10, the suction valve 11 opens with the discharge valve 13 closed, and the air inside the tongue 10 is opened. Is being introduced.
- the container 1 When using the dry powder inhalation device, as shown in Fig. 1, the container 1 is fitted into the cylindrical safety cover 8, and the needle part 5 is pierced into the stopper 1a of the container 1 so that the air jet flow path 3 and the discharge flow
- the passage 4 communicates with the inside of the container 1.
- the bellows body 10 of the air pressure feeding means 9 when the bellows body 10 of the air pressure feeding means 9 is contracted and air is discharged from the discharge port 14, the air passes through the air injection flow path 3 and flows from the tip of the needle part 5 to the freeze-dried composition in the container.
- the freeze-dried composition 2 is ejected toward the object 2 and becomes fine particles by the air impact, and is discharged from the suction port 6 of the suction member 7 through the discharge channel 4 of the needle portion 5.
- the user inhales the fine particles from the intake port 6 of the intake member, whereby the fine particles of the lyophilized composition 2 are sent into the lung organ of the patient.
- the material used for the stopper of the container used in the present invention is not particularly limited.
- a material used as a stopper of a container containing a usual drug or compound such as rubber, plastic or aluminum can be arbitrarily selected. Can be used selectively.
- the air injection amount is about 2 O ml
- the volume of the container is about 5 ml
- the hole diameter (diameter) of the air injection passage 3 is about 1.2 mm
- the hole diameter of the discharge passage 4 (Diameter) is set to about 1.8 mm.
- the hole diameter of the air injection flow path 3 and the discharge flow path 4 is not particularly limited because a preferable range varies depending on the size of the container and the like.
- the diameter is appropriately selected from the range of 0.3 to 10 mm, preferably 0.3 to 7 mm, more preferably 0.5 to 5 mm.
- the pneumatic feeding means 9 can adjust the compression rate of the bellows body 10 to adjust the discharge amount of fine particles required for inhalation administration. It can be adjusted so that most of 2 is finely divided.
- Embodiment Example 2 Dry Powder Inhalation Device (Self Inhalation Type 1)
- the dry powder inhalation device shown in FIG. 2 has a needle part 5 having a suction channel 16 and an air introduction channel 17, a cylindrical safety cover 8, and a suction port 18 communicating with the suction channel 16. And a suction member 19 having the following.
- the P and air members 19 are connected to the proximal end side of the suction flow path 16 of the needle part 5.
- the container 1 When using the dry powder inhalation device, as shown in Fig. 2, fit the container 1 into the cylindrical safety cover 18 and pierce the needle plug 5a into the stopper 1a of the container 1 to introduce the suction channel 16 and air.
- the flow path 17 is communicated with the inside of the container 1.
- the air in the container 1 is sucked from the suction port 18 through the suction channel 16 by the inspiratory pressure of the patient, and the air introduction channel 17 From outside air.
- the freeze-dried composition 2 is atomized by the air impact acting on the freeze-dried composition 2, and the prepared fine particles are sent into the patient's lung organ from the suction port 18 through the suction channel 16.
- the dry powder inhalation device is set such that most of the freeze-dried composition 2 is atomized and discharged from the inhalation port 18 by one inhalation of the patient.
- the air flow rate of one inhalation of the patient is 5 to 300 LZ, preferably 10 to 200 LZ, and more preferably 10 to L 0 LZ.
- the self-inhalation type dry powder inhalation device is appropriately designed and changed according to the respiratory ability of the patient to be used.
- the capacity of the container is set to about 10 m1
- the hole diameter of the air introduction channel 17 and the suction channel 16 is set to about 1.5 mm in diameter according to the respiratory capacity of the patient. It is set. Thereby, it is set such that the lyophilized composition 2 is almost completely atomized and discharged from the inlet 18 by one inhalation of the patient.
- Embodiment 3 Dry Powder Inhalation Device (Self Inhalation Type 2)
- the dry powder inhalation device shown in Fig. 3 has the same configuration as when the bellows body 10 used for air pumping is removed from the connection port 15 of the injection type dry powder inhalation device shown in Fig. 1.
- the discharge channel 4 of the injection-type dry powder suction device of FIG. 1 is in the suction channel 16
- the air injection channel 3 is in the air introduction channel 17
- the suction member 7 having the suction port 6 is the suction port. It corresponds to the intake member 19 having 18.
- the container 1 When using such a self-inhalation type dry powder inhalation device, the container 1 is connected to the container 1 via the suction channel 16 via the suction port 18 by the patient's inspiratory pressure in the same manner as the dry powder inhalation device shown in FIG.
- the inside air is sucked and the outside air flows into the container 1 under negative pressure from the air introduction channel 17, and the freeze-dried composition 2 is finely divided by the air impact generated by the air inflow. Be converted to Then, the obtained microparticles are sent into the lung organ of the patient from the inlet 18.
- the air flow rate for a single inhalation of a patient is usually in the range of 5 to 300 LZ, but the inhalation device shown in Fig. 3 depends on the respiratory capacity of the patient.
- the volume was set to approximately 5 ml, the hole diameter (diameter) of the air introduction channel 17 was set to approximately 1.2 mm, and the hole diameter (diameter) of the suction channel 16 was set to approximately 1.8 mm. Thereby, it is set so that the lyophilized composition 2 is mostly atomized and discharged from the inhalation port 18 by one inhalation of the patient.
- the self-inhalation type inhalation device When the self-inhalation type dry powder inhalation device is configured in this manner, the self-inhalation type inhalation device is ejected by detachably attaching the air pressure feeding means 9 such as the bellows body 10 to the connection port 15. It can be changed to a type. Thereby, one dry powder inhalation device can be appropriately selected and used for both self-inhalation type and injection type as desired.
- the above-described dry powder inhalation device of the present invention is capable of converting the lyophilized composition into fine particles having an average particle diameter of 10 ⁇ m or less, preferably 5 ⁇ m or less, regardless of whether it is a self-inhalation type or a jet type. In addition, it is possible to configure so that the magnitude of the air impact can be selectively set so that almost all of the air is scattered.
- Embodiment 4 Dry powder inhalation device self-inhalation type 3
- FIG. 4 is a perspective view showing the dry powder inhalation device
- FIG. 5 is a sectional view showing the dry powder inhalation device
- 6 (a) is a partial cross-sectional view showing the needle part 5 and the suction port 31 of the dry powder inhaler
- FIG. 6 (b) is a side view of the needle part 5.
- FIGS. 7 to 10 are cross-sectional views illustrating the operation of the dry powder inhalation device.
- the dry powder inhalation device includes a needle portion 5 having a suction channel 16 and an air introduction channel 17 formed therein, a holder portion 22 for holding the container 1, and a container 1 via the holder portion 22.
- a holder-operating portion 24 for moving forward and backward along 23 is provided, and these are accommodated in a cylindrical housing 21.
- a mouthpiece 32 having a suction port 31 communicating with a suction channel 16 of the needle section 5 is provided at the front end of the housing 21.
- the housing 21 has a housing main body 26 in which an access port 25 is formed at a position where the holder section 22 is retracted, and a lid 27 for opening and closing the access port 25. It is formed with.
- the lid 27 is connected to the housing main body 26 via a hinge 21 A, and the lid 27 is provided with a window 28 for confirming the loading of the container 1.
- An inlet 29 for introducing outside air is provided in the wall of the housing 21, and a check valve 30 is attached to the inlet 29. Further, a mouse piece 32 is attached to the front end of the housing 21. When the dry powder inhalation device is not used for the mouthpiece 32, the suction port 31 is closed with the cap 32a.
- a flange-shaped partition wall portion 33 is formed at the base end of the needle portion 5, and an end of the air introduction flow path 17 passes through the partition wall portion 33 and opens in the outer peripheral direction of the partition wall portion 33.
- a peripheral wall portion 34 extends from an outer peripheral edge of the partition wall portion 3 3 toward the suction port 31 of the mouthpiece 32, and by fitting the partition wall portion 3 3 into an end portion of the housing 21, the housing 2 1 Needle part 5 is attached inside. With this installation, the axis direction of the housing 2 1 Direction matches the axial direction of the needle part 5.
- a take-out body 35 for attaching the container 1 to the holder part 22 from the bottom of the holder part 22 is attached to the holder part 22, and a lever 36 for forming the container 1 is formed in the take-out body 35. ing.
- the holder operating part 24 includes a mechanism part 37 for reciprocating the holder part 22 in the axial direction of the housing 21 and an operation lever for operating the mechanism part 37.
- the mechanism 37 has a connector 39. One end of the connector 39 is connected to the holder part 22 with a hinge 40, and the other end of the connector 39 is connected to the lid 27 with a hinge 41.
- the lid 27 also serves as the operation lever. By opening and closing the lid 27, the holder part 22 is moved forward and backward along the guide part 23.
- the point of action of the force for tilting the lid 27 is the point indicated by the arrow C in FIG. That is, the length from the hinge 21A to the action point is made longer than the length from the hinge 21A to the hinge 41.
- the dry powder inhalation device is provided with a second introduction path 42 for supplementarily introducing air. When sucking the freeze-dried composition from the mouthpiece 32, the outside air flows directly into the suction port 31 of the mouthpiece 32 through the second introduction path 42. This allows patients with reduced vital capacity and children to use dry powder inhalation devices without strain.
- the second introduction path 42 may be omitted.
- the second introduction path 4 2 is provided with an introduction groove 4 2 a in the partition wall portion 3 3 of the needle portion 5 and an introduction groove 4 2 b in the peripheral wall portion 3 4, and a mouthpiece 3 is provided in the peripheral wall portion 3 4 of the needle portion 5.
- the mouthpiece 32 and the introduction grooves 42a and 42b are formed.
- a small gap 4 3 is formed between the mouthpiece 3 2 and the housing 2 1, and one end 4 4 of the second introduction path 42 opens to the outside through the gap 43 and the other The end 4 5 is open to the suction port 3 1 of the mouthpiece 3 2.
- a wall 47 having a vent hole 46 is provided in the suction port 31. Therefore, the air impulse given to the lyophilized composition 2 due to lack of suction power, etc. Even when the impact force is reduced and a non-powder portion is generated in a part of the freeze-dried composition 2, the non-powder portion can be powdered when passing through the ventilation hole 46 of the wall 47.
- the tip 17a of the air introduction channel 17 of the needle part 5 is closer to the lyophilized composition 2 than the tip 16a of the suction channel 16 is. I have.
- the flow velocity of the air flowing into the container 1 from the distal end port 17a of the air introduction channel 17 is suppressed as much as possible, and an effective air impact can be given to the freeze-dried composition 2.
- the tip port 16 a of the suction channel 16 of the needle part 5 is farther from the lyophilized composition 2 than the tip port 17 a of the air introduction channel 17, the suction channel of the needle part 5 Before being sucked into 16, the fine powder of the lyophilized composition 2 in the container 1 can be advanced as much as possible.
- the dry powder inhalation device is used as follows. First, as shown in FIG. 7, by raising the lid 27 and opening the access port 25 of the housing 21, the holder portion 22 is pulled and retracted to the access port 25 of the housing 21. Next, the container 1 is attached to the holder 22 with the stopper 1a facing forward. Next, as shown in FIG. 8, the lid 27 is folded down to close the access port 25 of the housing 21, whereby the holder part 22 is pushed into the needle part 5 by the connecting body 39 and the container 1 is pressed. The stopper 1 a of the needle 5 penetrates the tip of the needle part 5, and the suction channel 16 and the air introduction channel 17 of the needle part 5 communicate with the inside of the container 1.
- the air in the container 1 is sucked from the suction port 31 of the mouthpiece 32 through the suction channel 16 of the needle part 5 by the inspiratory pressure of the patient.
- the inside of the container 1 becomes negative pressure
- the check valve 30 opens, and the outside air flows into the container 1 through the air introduction passage 17 of the needle portion 5.
- air shock occurs in the container 1 and the freeze-dried composition 2 is finely divided, and the prepared fine particles pass through the suction passage 16 and enter the lung organ of the patient from the suction port 31.
- Sent. After use, raise the lid 27 to pull the holder part 2 2 to the inlet / outlet 25 of the housing 21, then take out the body 35 with the lever 36 and lift the container 1 from the holder part 22. Take out.
- the air flow rate for a single inhalation of a patient is usually in the range of 5 to 300 L / min.However, the inhalation devices shown in FIGS. Accordingly, the capacity of container 1 is reduced to approximately 5 ml, the diameter (diameter) of air introduction channel 17 to approximately 2.5 mm, and the diameter (diameter) of suction channel 16 to approximately 2.5 mm. It is set. Thereby, the setting is made such that most of the freeze-dried composition 2 is atomized and discharged from the suction port 31 by one inhalation of the patient.
- FIG. 11 to FIG. 11 Another embodiment of the dry powder inhalation device (self-inhalation type) is shown in FIG. 11 to FIG.
- the dry powder inhalation device (self-inhalation type 4) shown in FIG. 11 has an operating body 48 rotatably provided in the circumferential direction of the housing 21 as shown by an arrow.
- Holder (not shown) —The mechanism of the operating section includes a spiral groove and a follower that engages with the spiral groove.
- the rotational movement of the operating body 48 converts the holder 22 into a linear movement in the axial direction of the needle 5. .
- the rotation angle of the operation body 48 is approximately 180 degrees.
- an annular operating body 49 is rotatably attached to a housing 21.
- the mechanism part of the holder-one operation part (not shown) is provided with a feed screw, and converts the holder part 22 into a linear movement in the axial direction of the needle part 5 by the rotational movement of the operating body 49.
- the holder 22 can be pulled out from the rear of the housing 21.
- LipofectAMINE2000 (Invitrogen), a catonic ribosome for gene transfer, and 72 g of pEGFP-C2 (Clontech), a plasmid DM, were combined with OPT I-MEM I Reduced Serum Medium (Invitrogen) (Eagle's minimum essential medium, an improved medium manufactured by Sharp Corporation) 1200 1 and mixed in suspension to form a complex in the presence of the culture solution.
- OPT I-MEM I Reduced Serum Medium (Invitrogen) (Eagle's minimum essential medium, an improved medium manufactured by Sharp Corporation) 1200 1 and mixed in suspension to form a complex in the presence of the culture solution.
- the geometric mean particle size of the composite was measured with a dynamic light scattering spectrophotometer (ELS-8000, manufactured by Otsuka Electronics Co., Ltd.).
- each suspension (body diameter ⁇ 18 thigh) containing 100 1 of each suspension containing the complex was placed in 400 l of an aqueous solution (5 mg / ml) in which L-leucine was dissolved in water in advance. Each was added to the book and mixed (number of samples: 10). After that, freeze-drying was performed using a shelf freeze dryer (LY0VAC GT-4, manufactured by LEYB0LD), and the disintegration index of the obtained non-powder-shaped freeze-dried composition (freeze-dried cake) was calculated.
- LY0VAC GT-4 manufactured by LEYB0LD
- a container containing the product is a spray-type dry powder suction device designed to have a hole diameter of the air injection channel 3 of ⁇ 1.2 ⁇ and a hole diameter of the discharge channel 4 of ⁇ 1.8mm (air volume about 20ml). It has a bellows body 10 capable of supplying the same.
- Aerobridder (Amherst Process Instrument, Inc. $ 3 ⁇ 4, USA, RW Niven: Pharmaceutical Technology, 72-78 (1993)) is an artificial lung model that can directly measure the particle size distribution of particles injected from a container.
- Example 2 100 l of each suspension containing the complex was placed in a container (a body diameter of ⁇ 18 thigh) containing an aqueous L-leucine solution (5 mg / ml) 4001 in which L-leucine was previously dissolved and prepared in water. ) Were added to (10 pieces) to prepare freeze-dried samples (Example 2).
- a lyophilization sample (10 samples) was prepared in the same manner using an aqueous solution of dextran 40 (5 mg / ml) 400 instead of the L-leucine aqueous solution (Comparative Example 1).
- each sample was freeze-dried using a shelf freeze dryer (LY0VAC GT-4, manufactured by LEYB0LD), and the disintegration index of the obtained non-powder-shaped freeze-dried composition (lyophilized cake) was calculated.
- a container containing the non-powder-shaped freeze-dried composition (freeze-dried cake) was placed in an injection mold designed so that the air injection channel 3 had a hole diameter of ⁇ 1.2 mm and the discharge channel 4 had a hole diameter of ⁇ .8 mm.
- the dry powder inhalation device having a bellows body 10 capable of supplying an air amount of about 2 O ml. Embodiment example 1, see FIG. 1).
- Example 2 the lyophilized composition of Example 2 was prepared by introducing an air volume of about 2 Om1 from the inhalation device into the container (air speed about 35 m / sec and air flow rate about 40 ml / sec). It was confirmed that the non-powder freeze-dried cake in the container was atomized and the particles were instantaneously ejected and discharged from the container through the discharge channel 4. This was made in the same manner as in Example 1 using an aero bleeder (Amherst Process Instrument, Inc.).
- the freeze-dried composition of Comparative Example 1 had an air velocity of about 35 m / sec and an air flow rate of about 35 m / sec.
- the particles were not dispersed at all by the impact of air generated at 40 ml / sec, and the aerodynamic average particle size could not be measured.
- Example 2 shows that the sample before lyophilization was not dissolved as in Example 1. Even in the state of suspension (here, suspension state), it collapses due to the impact of air generated at an air velocity of about 35 i / sec and an air flow rate of about 40 ml / sec. The result was a finely divided dry powder formulation suitable for pulmonary administration.
- the geometric mean particle size of this complex can be measured using a dynamic light scattering spectrophotometer (ELS-8000, manufactured by Otsuka Electronics Co., Ltd.) or a laser-diffraction scattering particle size distribution analyzer ( The measurement was performed using a Laser Diffraction / Scattering Partic- ule Size Analyzer, SALD-3000J, manufactured by Shimadzu Corporation.
- ELS-8000 dynamic light scattering spectrophotometer
- SALD-3000J Laser Diffraction / Scattering Partic- ule Size Analyzer
- Example 3 a lyophilized sample was prepared in the same manner as in Example 3, except that an aqueous solution of dextran 40 (5 mg / ml) 400 ⁇ 1 was used instead of the aqueous solution of L-leucine dissolved in Example 3.
- each non-powder-shaped freeze-dried composition obtained by freeze-drying using a shelf freeze dryer (LY0VAC GT-4, manufactured by LEYB0LD) was calculated.
- the container containing the obtained non-powder-shaped freeze-dried composition was designed so that the hole diameter of the air injection channel 3 was ⁇ 1.2 mm and the hole diameter of the discharge channel 4 was ⁇ 1.8 mm.
- the dry powder inhalation device of the injection type having a bellows body 10 capable of supplying an air amount of about 2 Oral. Refer to Embodiment Example 1 and FIG. 1).
- the lyophilized compositions of Examples 3, 4 and 5 were prepared by introducing an air volume of about 2 Oml from the inhalation device into the container (air velocity about 35 m / sec and air flow rate about 4 Oml / It was confirmed that the non-powder freeze-dried cake in the container was broken down into fine particles, and that the particles were instantaneously ejected and discharged from the container through the discharge channel 4.
- the particles were collected using a particle size distribution analyzer (Aerosizer: Amherst Process Instrument, Inc., USA), and the particle size distribution of the micronized particles was measured, from which the aerodynamic mean particle size m SD was calculated.
- the non-powder-shaped freeze-dried cake having a disintegration index of 0,080 to 0.225, that is, a disintegration index of 0.080 or more is the same as in Example 1, except that the sample before freeze-drying is in an undissolved state.
- the sample before freeze-drying is in an undissolved state.
- the particles have a geometric average particle size of 11 microns, which is quite easy to agglomerate, collapses due to the impact of air generated at an air velocity of about 35 m / sec and an air flow rate of about 40 ml / sec.
- a fine dry powder formulation suitable for pulmonary administration with an aerodynamic mean particle size of 5 microns or less was obtained.
- the non-powder freeze-dried cake with a disintegration index of 0.003 (Comparative Example 2) was not dispersed or atomized by the above-mentioned air impact, and was suitable for preparation as a dry powder formulation for pulmonary administration. Did not.
- This result indicates that even when the sample before freeze-drying is in a non-dissolved state (in this case, a suspension state), it is possible to prepare a micronized dry powder suitable for pulmonary administration by the specific air impact specified in the present invention. It shows that it can be provided as a dry composition, that is, it can be applied to the dry powder inhalation system for pulmonary administration of the present invention and can be effectively administered by pulmonary administration. It is something.
- Oligo-RNA is a type of RNAi (RNA interferance) that is a double-stranded RNA that can be applied to RNAi technology.By introducing a short double-stranded RNA corresponding to the target gene, Oligo-RNA is a messenger RNA for the target gene. Function can be specifically controlled (suppressed), and can be applied to the treatment of lung cancer and the like.
- the dry powder inhalation system for pulmonary administration of the present invention can be effectively used for gene therapy.
- the suspension 100a1 containing this complex was placed in a container containing a previously prepared aqueous solution of L-valine dissolved (2.5 mg / ml) 4001 (body diameter ⁇ 18) (10 To prepare a sample for freeze-drying. After that, freeze-drying was performed using a shelf freeze dryer (LY0VAC GT-4, manufactured by LEYB0LD), and the disintegration index was calculated for the obtained non-powder-shaped freeze-dried composition (? Toki dried cake). .
- LY0VAC GT-4 manufactured by LEYB0LD
- the container containing the obtained non-powder-shaped freeze-dried composition (freeze-dried cake) was designed so that the hole diameter of the air injection channel 3 was ⁇ 1.2 mm and the hole diameter of the discharge channel 4 was ⁇ 1.8 mm. It was mounted on a spray-type dry powder inhalation device (having a bellows body 10 capable of supplying an air volume of about 2 O ml. Embodiment example 1, see FIG. 1).
- the lyophilized composition of Example 6 was prepared by introducing about 20 ml of air from the inhalation device into the container (at an air velocity of about 35 m / sec and an air flow of about 40 ml / sec).
- Table 4 shows the geometric mean particle size of the particles present in a non-dissolved state in the suspension, the disintegration index of each freeze-dried composition, and the aerodynamic mean particle size of the particles ejected from the device.
- Example 2 shows that, as in Example 1, even when the sample before freeze-drying was in a non-dissolved state (here, a suspension state), it was not subjected to the specific air impact specified in the present invention. Therefore, it can be provided as a lyophilized composition from which a finely divided dry powder suitable for pulmonary administration can be prepared.In other words, even if the compounded component is insoluble or hardly soluble in a solvent, it can be used for pulmonary administration according to the present invention. It can be applied to dry powder inhalation systems and shows that it can be effectively transpulmonary administration. Examples 7 to 8
- aqueous solution prepared by dissolving insulin (Recombinant Human Insulin crystal, manufactured by Biobras, Brazil, specific activity: 26.4 U / mg) (0.2 mg in Example 7 and 1 mg in Example 8) with an aqueous hydrochloric acid solution and various carriers shown in Table 5
- the geometric mean particle size of the particles contained in this suspension was determined by laser diffraction.
- a scattering particle size analyzer (Laser Dif fraction / Scattering Particle Size Analyzer, SALD-3000J, manufactured by Shimadzu Corporation) was used. It measured using.
- this suspension was filled in a container (body diameter: 18 thighs), and freeze-dried using a shelf freeze dryer (LYOVAC GT-4, manufactured by LEYBOLD).
- the disintegration index of the obtained non-powder freeze-dried composition was calculated.
- a container (body diameter ⁇ ) filled with the non-powder freeze-dried composition was placed in a self-inhalation type drying system with the air inlet channel 17 having a hole diameter of ⁇ 1.99 and the suction channel 16 having a hole diameter of 1. 1.99 mm.
- a powder inhalation device (see Embodiment Example 3 and FIG. 3) was attached.
- Table 5 shows the geometric mean particle size of the particles present in a non-dissolved state in each suspension, the disintegration index of each freeze-dried composition, and the effective particle ratio (%).
- non-powder lyophilized composition (lyophilized cake) with a disintegration index of at least 0.238 is obtained by using the sample before lyophilization as the active ingredient (insulin). Even when) was contained in a non-dissolved state, it could be easily made into fine particles in a container by the above-mentioned air impact, and could be prepared into a dry powder formulation suitable for pulmonary administration. Examples 9 to 11
- a solution prepared by dissolving lmg of insulin (Recombinant Human Insulin crystal, manufactured by Biobras, Brazil, specific activity: 6.4 U / mg) in aqueous hydrochloric acid and a solution of 0.5 mg of fenilalanine dissolved in purified water were separately prepared. These were mixed, and various pHs were adjusted with sodium hydroxide, whereby respective suspensions were obtained.
- the geometric mean particle size of the particles contained in this suspension is measured using a laser diffraction / scattering particle size analyzer SALD-3000J, (fe; manufactured by Shimadzu Corporation). did.
- this suspension was filled in a container (body diameter ⁇ M8 thigh) and freeze-dried using a shelf-type freeze dryer (LYOVAC GT-4, manufactured by LEYB0LD).
- the disintegration index of the obtained non-powder freeze-dried composition was calculated.
- a container filled with the non-powder-shaped freeze-dried composition was spray-dried with the hole diameter of the air injection channel set to ⁇ 1.2 and the outlet channel set to ⁇ 1.8.
- a powder inhalation device (with a bellows body capable of supplying about 20 ml of air) was installed.
- the effective particle ratio () was calculated using a twin impinger (Copley, UK) (by applying an air impact to the freeze-dried cake at an air speed of about 35 m / sec and an air flow rate of about 40 ml / sec).
- Table 6 shows the geometric mean particle size of the particles present in a non-dissolved state in each suspension, and the disintegration index and effective particle ratio (%) of each freeze-dried composition.
- non-powder lyophilized composition (lyophilized cake) with a disintegration index of at least 0.36 contains the active ingredient (insulin) in a non-dissolved state before lyophilization. Even in the case, it is easily atomized in the container by the above air impact, Moreover, it was possible to prepare a dry powder formulation suitable for pulmonary administration.
- each of the suspensions was filled into a container (body diameter (M8 band)) and freeze-dried using a shelf-type freeze dryer (LYOVAC GT-4, manufactured by LEYB0LD).
- the disintegration index was calculated for the freeze-dried composition (freeze-dried cake)
- a container (body diameter ⁇ 18 band) filled with the non-powder-shaped freeze-dried composition was placed in the air introduction passage 17 with a hole diameter of ⁇ 1.99 thigh.
- a self-inhalation type dry powder inhalation device (Embodiment 3, Fig. 3) was designed with the suction channel 16 designed to have a hole diameter of 1.91.99 ⁇ . Using this, a twin impinger (Copley, UK) was used.
- Table 7 shows the disintegration index and effective particle ratio (%) of the lyophilized composition.
- non-powder lyophilized composition (lyophilized cake) with a disintegration index of at least 0.051 is? Even if the sample before eastern drying contains the active ingredient (insulin) in a non-dissolved state, fine particles can be easily formed in the container by the above air impact. And a dry powder formulation suitable for pulmonary administration could be prepared.
- Insulin Recombinant Human Insulin crystal, manufactured by Biobras, Brazil, specific activity: 26. U / mg
- An aqueous solution prepared by dissolving 0.1 mg of hydrochloric acid in water and a solution prepared by dissolving 0.5 mg of valine in purified water were prepared separately. These were mixed, and the pH was adjusted to 6.5 with sodium hydroxide, whereby a suspended suspension was obtained. The geometric mean particle size of the particles contained in this suspension is measured using a laser diffraction / scattering particle size distribution analyzer.
- a container filled with the non-powder-shaped freeze-dried composition (body diameter ⁇ 18 thighs) was self-inhaled with the air introduction channel 17 having a hole diameter of ⁇ 1.99 thigh and the suction channel 16 having a hole diameter of ⁇ 1.99 IM.
- a dry powder inhaler device (Embodiment 3, Fig. 3) was attached.
- a non-powder lyophilized composition (lyophilized cake) in a container is subjected to an air impact at an air speed of about lm / sec and an air flow rate of about 17 ml / sec, and the generated fine particles are removed from the device.
- Aerosolizer Amherst Process Instrument, Inc., USA; Amherst Process Instrument, Inc., USA; measurement condition: Breath rate lL / min, Breath Volume 0.1L
- SD aerodynamic average particle size
- the non-powder lyophilized composition having a disintegration index of 0.221 (lyophilized Even if the sample before freeze-drying contains the active ingredient (insulin) in a non-dissolved state, the dried cake is easily atomized in the container by the above-mentioned air impact, and is suitable for pulmonary administration.
- a powder formulation could be prepared.
- Insulin Recombinant Human Insulin crystal, manufactured by Biobras, Brazil, specific activity: 26.4 U / mg
- insulin and various carriers shown in Table 9 are dissolved in distilled water containing hydrochloric acid, respectively. It was adjusted to 0.2 ml, filled in a container (diameter of 18 mm in diameter), and freeze-dried using a shelf freeze dryer (LYOVAC GT-4, manufactured by LEYB0LD). For the obtained non-powder-shaped lyophilized composition (lyophilized cake), a crushing index was calculated.
- the container (body diameter ⁇ 18 thigh) filled with the obtained non-powder-shaped freeze-dried composition was designed so that the hole diameter of the air introduction passage 17 was ⁇ 1.99 thigh and the hole diameter of the suction passage 16 was ⁇ 1.99 thigh.
- Self-inhalation type dry powder inhalation device see Embodiment Example 3 and FIG. 3.
- the effective particle ratio (%) was determined using a twin impinger (Copley, UK) (by applying an air impact to the freeze-dried cake at an air speed of about 95 m / sec and an air flow rate of about 295 ml / sec). Calculated.
- Table 9 shows the disintegration index and effective particle ratio () of each freeze-dried composition.
- Insulin Recombinant Human Insul crytal, Biobras, Brazil, specific activity: 26.4 U / mg
- various carriers 1.5 rag shown in Table 7 were dissolved in distilled water containing hydrochloric acid. This was filled into a container (diameter: 18 mm) and freeze-dried using a shelf freeze dryer (LYOVAC GT-4, manufactured by LEYB0LD). The disintegration index of the obtained non-powder-shaped lyophilized composition (lyophilized cake) was calculated.
- the container filled with the obtained non-powder-shaped freeze-dried composition (body diameter ⁇ 18 strokes) was filled with the air jet channel 3 having a hole diameter of ⁇ 1.2, and the outlet channel 4 with a hole diameter of ⁇ 1.2. It was attached to a spray-type dry powder suction device designed on eight thighs (having a bellows body capable of supplying about 20 ml of air: Embodiment Example 1, see FIG. 1). Using this, a non-powder lyophilized composition (lyophilized cake) in a container is subjected to an air impact at an air velocity of about 35 m / sec and an air flow of about 40 ml / sec, and the generated fine particles are removed from the device.
- a container filled with the non-powder-shaped freeze-dried composition (body diameter ⁇ 18 thighs) was designed to have a hole diameter of the air introduction channel 17 ⁇ M. 99 mm and a hole diameter of the suction bow I channel d> l. 99 mm. It was attached to a self-inhalation type dry powder P access device (see Embodiment Example 3, FIG. 3). Using this, a twin impinger (Copley, UK) was used to apply an air impact to the freeze-dried cake at an air speed of about 95 m / sec and an air flow rate of 295 ml / sec, and the effective particle ratio (%) was calculated.
- a twin impinger Copley, UK
- Table 10 shows the disintegration index of each freeze-dried composition, the aerodynamic average particle diameter ( ⁇ m soil SD) of the particles ejected from the device, and the effective particle ratio (%).
- Insulin + iso-D isine 0.124 1.759 ⁇ 1.425 71.1 Refer to 7) Insulin + Leucine 0.250 1.954 ⁇ 1.454 74.1 Refer to 8) Insulin + /, ” Phosphorus 0.124 2.007 ⁇ 1.438 72.1 See 9) Insulin + Phenylalanine 0.204 1.872 ⁇ 1.477 See 62.0 10) Insulin + D-mannitol 0.160 2.239 ⁇ 1.435 61.2 As shown in Table 10, A non-powder lyophilized composition (lyophilized cake) with a crush index of at least 0.124 is produced at an air velocity of about 35 m / sec and an air flow of about 0 ml / sec.
- the particles were easily atomized in the vessel by the air impact generated at a flow rate of 295 ml / sec, and the average particle diameter of the particles atomized by the air impact generated at an air velocity of about 95 m / sec and an air flow rate of 295 ml / sec. Is less than 5 microns and could be prepared into a dry powder formulation suitable for pulmonary administration.
- the lyophilized composition can be micronized to a size required for delivery to the lung, and the microparticles can be inhaled into the lung. . That is, according to the dry powder inhalation system for pulmonary administration of the present invention, the freeze-dried composition prepared in a non-powder state can be micronized at the time of use (at the time of administration), and at the same time, P can be administered and administered. This eliminates the need for special operations for atomizing the drug product.
- the dry powder inhalation system for pulmonary administration of the present invention
- loss during manufacturing loss of inactivation of drug and recovery loss due to filling operation
- loss during storage preservation in the form of fine particles
- contamination of foreign substances during the manufacturing process and a desired amount can be stably administered.
- This is particularly useful for preparations containing generally expensive pharmacologically active substances such as proteins and peptides as active ingredients.
- the effective particle ratio obtained in the dry powder inhalation system for pulmonary administration of the present invention. is at least 10% or more, and according to the dry powder inhalation system for transpulmonary administration of the present invention, the effective particle ratio is 20% or more, 25% or more, 30% or more. , And more than 35%.
- most of the conventional dry powder P-injection devices require only about 10% of the active ingredient (particles) attached to the lower part of the lung.
- the amount of a drug delivered to the lungs (pulmonary delivery rate) of a general inhalable powder formulation may be about 10% of the drug excreted from the formulation.
- the dry powder inhalation system for pulmonary administration of the present invention is a useful administration system in that it can achieve a higher effective particle ratio (Fine Particle Fraction) than conventional powder formulations for inhalation.
- Fine Particle Fraction effective particle ratio
- ADVANTAGE OF THE INVENTION According to the freeze-dried composition and the spray-type dry powder inhalation device of this invention, air is injected into an inside of a container from an air injection flow path by an air pumping means, and only slight air impact is given to a freeze-dried composition.
- the freeze-dried composition can be finely divided. For this reason, it is an inhalation device with a simple structure, and can be atomized when used with simple handling.
- the inhalation device has a simple structure, it can be produced at a low manufacturing cost, and as a result, it can be spread in large quantities.
- the amount of aerosol (powder formulation) absorbed by the bow can be adjusted according to the user's respiratory ability. Can be.
- the work of piercing the needles into the stopper of the container becomes easy.
- the lyophilized composition can be aerosolized (particulateized) by generating air impact by the inhalation pressure of the user, so that it can be used simultaneously with the inhalation of the user.
- the lyophilized composition can be micronized and administered to the lung, whereby a stable drug administration with no loss can be expected.
- handling is easy because no special operation is required for aerosol shaping (particulation).
- by integrating the needles into one piece it becomes easier to pierce the back of the container into the stopper.
- the tip of the needle portion having the suction channel and the air introduction channel is pierced into the stopper of the container, and the air in the container is sucked through the suction bow I port by the suction pressure of the patient.
- inhaling air it is possible to cause air to flow into the container from the air introduction channel of the needle portion to give an air impact to the lyophilized composition, and to suck the lyophilized composition powdered from the container. it can.
- the container is securely held, and is kept close to the needle axis without coming off the axis of the needle, and the needle stopper is pressed with great force. Need arises.
- the dry powder inhalation device of the present invention operates as a holder having a part holding a container, a guide part of the holder part, a mechanism part, and an operating body for operating the mechanism part.
- the stopper of the container can be easily and reliably pierced into the needle portion.
- the housing is formed in a cylindrical shape, the suction port is formed at a front end of the housing, a storage chamber for the container is formed in the housing, and the needle tip is directed to the storage chamber.
- the needle portion is disposed in the housing, an inlet for communicating with the air introduction channel of the needle portion to introduce outside air is provided in a wall portion of the housing, and the holder portion is operated by the holder operation portion. If the housing is configured to be advanced and retracted in the axial direction of the housing in the storage chamber, a pencil-shaped dry powder suction device can be formed, which is easy to use and portable.
- the housing is formed of a housing main body having a container insertion / removal part at a position where the holder part is retracted, and a lid of the above-mentioned insertion / removal port which is hingedly connected to the housing body.
- the holder operating part closes the access opening by tilting the lid, the holder operating part moves the holder part forward, raises the lid, and
- the mechanism section for retracting the holder section is provided, and the lid also serves as an operating body of the mechanism section, so that the mechanism section of the holder operating section can be simplified. This is advantageous in terms of manufacturing costs.
- the stopper of the container can be closed at the same time as the stopper of the container pierces the needle tip, it becomes easy to use.
Abstract
Description
Claims
Priority Applications (15)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003289051A AU2003289051B2 (en) | 2001-06-15 | 2003-12-12 | Novel dry powder inhalation system for transpulmonary administration |
JP2004560627A JP4822709B2 (ja) | 2002-12-13 | 2003-12-12 | 新しい経肺投与用乾燥粉末吸入システム |
US10/538,837 US7735485B2 (en) | 2001-06-15 | 2003-12-12 | Dry powder inhalation system for transpulmonary administration |
CA2507766A CA2507766C (en) | 2001-06-15 | 2003-12-12 | Novel dry powder inhalation system for transpulmonary administration |
UAA200506798A UA81280C2 (uk) | 2001-06-15 | 2003-12-12 | Ліофілізована композиція для черезлегеневого введення та її застосування (варіанти), спосіб виробництва порошкоподібного препарату для черезлегеневого введення, порошкова інгаляційна система, спосіб черезлегеневого введення |
EP03778863A EP1579855A4 (en) | 2001-06-15 | 2003-12-12 | NEW DRY POWDER INHALATION SYSTEM FOR TRANSPULMONARY ADMINISTRATION |
BR0316754-2A BR0316754A (pt) | 2001-06-15 | 2003-12-12 | Sistema de inalação de pó para administração transpulmonar |
KR1020057010714A KR101049914B1 (ko) | 2001-06-15 | 2003-12-12 | 새로운 경폐투여용 건조분말흡입시스템 |
EA200500967A EA009775B1 (ru) | 2002-12-13 | 2003-12-12 | Новая порошковая ингаляционная система для чрезлегочного введения |
MXPA05006322A MXPA05006322A (es) | 2001-06-15 | 2003-12-12 | Nuevo sistema de inhalacion de polvo seco para la administracion transpulmonar. |
NZ540935A NZ540935A (en) | 2001-06-15 | 2003-12-12 | Novel dry powder inhalation system for transpulmonary administration |
EGNA2005000290 EG23775A (en) | 2001-06-15 | 2005-06-13 | Novel dry powder inhalation system for transpulmonary administration |
NO20053300A NO20053300L (no) | 2001-06-15 | 2005-07-05 | Nytt torr pulver inhaleringssystem for transpulmonaer administrering. |
HR20050639A HRP20050639A2 (en) | 2001-06-15 | 2005-07-12 | Novel dry powder inhalation system for transpulmonary administration |
HK06102514A HK1082403A1 (en) | 2001-06-15 | 2006-02-24 | Dry powder inhalation system for transpulmonary administration |
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PCT/JP2002/005955 WO2002102445A1 (fr) | 2001-06-15 | 2002-06-14 | Systeme d'inhalation de poudre seche pour une administration transpulmonaire |
PCT/JP2003/015931 WO2004054555A1 (ja) | 2001-06-15 | 2003-12-12 | 新しい経肺投与用乾燥粉末吸入システム |
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PCT/JP2002/005955 WO2002102445A1 (fr) | 2001-06-15 | 2002-06-14 | Systeme d'inhalation de poudre seche pour une administration transpulmonaire |
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US20220091089A1 (en) * | 2019-04-25 | 2022-03-24 | Agco Corporation | Apparatus and methods for measuring soil conditions |
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