AnaptysBio, Inc. (Nasdaq: ANAB) is a clinical-stage biotechnology company focused on developing innovative immunology therapeutics. The company specializes in creating immune cell modulators for autoimmune and inflammatory diseases. AnaptysBio's primary focus is on two checkpoint agonists in clinical-stage development: rosnilimab, a PD-1 agonist, and ANB032, a BTLA agonist. Rosnilimab is being evaluated in a Phase 2 billion trial for rheumatoid arthritis and a Phase 2 trial for ulcerative colitis. ANB032 is undergoing a Phase 2 billion trial for moderate-to-severe atopic dermatitis. The company's preclinical portfolio includes ANB033, an anti-CD122 antagonist antibody, and ANB101, a BDCA2 modulator antibody, both targeting autoimmune and inflammatory diseases.
AnaptysBio has also developed two cytokine antagonists available for out-licensing: imsidolimab, an anti-IL-36R antagonist in Phase 3 for generalized pustular psoriasis (GPP), and etokimab, an anti-IL-33 antagonist for respiratory disorders that is Phase 2/3 ready. The company has discovered multiple therapeutic antibodies licensed to GSK for immuno-oncology, including Jemperli (dostarlimab-gxly), an anti-PD-1 antagonist antibody, and cobolimab (GSK4069889), an anti-TIM-3 antagonist antibody.
Key customers and partnerships
AnaptysBio has established a significant partnership with GSK through a financial collaboration in immuno-oncology. This collaboration has resulted in the development of several therapeutic antibodies, including Jemperli (dostarlimab-gxly), which received FDA approval for certain endometrial cancer indications. In May 2023, AnaptysBio amended its agreement with Sagard healthcare regarding Jemperli, receiving an additional USD 50 million upfront cash payment in exchange for certain royalty rights.
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