Aratana Therapeutics, Inc. is a pet therapeutics company focused on licensing, developing and commercializing of biopharmaceutical products for companion animals. The Company's portfolio includes therapeutic candidates in development consisting of small molecule pharmaceuticals and large molecule biologics that target medical conditions in pets. Its lead product candidates in development include small molecules directed at treating osteoarthritis pain and inflammation (AT-001 for dogs, also known as grapiprant for dogs or GALLIPRANT), appetite stimulation (AT-002 for dogs, also known as capromorelin for dogs or ENTYCE) and post-operative pain (AT-003 for dogs, also known as bupivacaine liposome injectable suspension for dogs or NOCITA). AT-001 is a selective antagonist of the prostaglandin E2 (PGE 2) EP4 receptor (EP4 prostaglandin receptor antagonist or EP4 PRA). AT-002 is a potent and selective ghrelin agonist. Its product candidates also include AT-014, AT-016 and AT-018 for dogs.