Soligenix, Inc. is a late-stage biopharmaceutical company. The Company is focused on developing and commercializing products to treat rare diseases. The Company operates through two segments: BioTherapeutics and Vaccines/BioDefense. Its BioTherapeutics segment is developing a photodynamic therapy (SGX301) utilizing topical synthetic hypericin activated with safe visible light for the treatment of cutaneous T-cell lymphoma (CTCL), formulations of oral beclomethasone 17,21-dipropionate (BDP) for the prevention/treatment of gastrointestinal (GI) disorders characterized by severe inflammation, and its innate defense regulator (IDR) technology, dusquetide (SGX942) for the treatment of oral mucositis in head and neck cancer. Its Vaccines/BioDefense business segment includes active development programs for RiVax, its ricin toxin vaccine candidate, OrbeShield, its GI acute radiation syndrome (GI ARS) therapeutic candidate, and SGX943, its melioidosis therapeutic candidate.