Regeneron Pharmaceuticals, Inc. discovers, invents, develops, manufactures, and commercializes medicines for treating various diseases worldwide. The company's products include EYLEA injection to treat wet age-related macular degeneration and diabetic macular edema; myopic choroidal neovascularization; diabetic retinopathy; neovascular glaucoma; and retinopathy of prematurity. It also provides Dupixent injection to treat atopic dermatitis and asthma in adults and pediatrics; Libtayo injection to treat metastatic or locally advanced cutaneous squamous cell carcinoma; Praluent injection for heterozygous familial hypercholesterolemia or clinical atherosclerotic cardiovascular disease in adults; REGEN-COV for covid-19; and Kevzara solution for treating rheumatoid arthritis in adults. In addition, the company offers Inmazeb injection for infection caused by Zaire ebolavirus; ARCALYST injection for cryopyrin-associated periodic syndromes, including familial cold auto-inflammatory syndrome and muckle-wells syndrome; and ZALTRAP injection for intravenous infusion to treat metastatic colorectal cancer; and develops product candidates for treating patients with eye, allergic and inflammatory, cardiovascular and metabolic, infectious, and rare diseases; and cancer, pain, and hematologic conditions. It has collaboration with Mammoth Biosciences, Inc. to research, develop and commercialize in vivo CRISPR-based gene editing therapies for multiple tissues and cell types; and with Sonoma Biotherapeutics, Inc. to discover, develop, and commercialize engineered regulatory T cell therapies. The company was incorporated in 1988 and is headquartered in Tarrytown, New York.

Zenas BioPharma, Inc., a clinical-stage biopharmaceutical company, engages in the development and commercialization of transformative immunology-based therapies. Its lead product candidate is obexelimab, a bifunctional monoclonal antibody for various indications, including immunoglobulin G4-related disease, multiple sclerosis, systemic lupus erythematosus, and warm autoimmune hemolytic anemia. The company also develops ZB002, an anti-TNFa monoclonal antibody; ZB004, a cytotoxic T-lymphocyte-associated antigen 4-immunoglobulin fusion; ZB001, an anti-insulin-like growth factor-1 receptor monoclonal antibody; and ZB005, an anti-active complement component 1s monoclonal antibody. Zenas BioPharma, Inc. was formerly known as Zenas BioPharma (Cayman) Limited and changed its name to Zenas BioPharma, Inc. in August 2023. The company was incorporated in 2019 and is based in Waltham, Massachusetts.

Zevra Therapeutics, Inc. discovers and develops various proprietary prodrugs to treat serious medical conditions in the United States. The company develops its products through Ligand Activated Therapy platform. Its lead product candidate is KP1077, consisting of KP1077IH, which is under Phase 2 clinical trial for the treatment of idiopathic hypersomnia, and KP1077N, which is under Phase ½ clinical trial to treat narcolepsy. The company is also developing Celiprolol, a prodrug product candidate that is under Phase 1/2 clinical trial for the treatment of vascular Ehlers Danlos syndrome. In addition, it offers AZSTARYS, a once-daily treatment for attention deficit hyperactivity disorder in patients aged six years and older; OLPRUVA to treat urea cycle disorders; and Arimoclomol for the treatment of niemann pick disease type C, an ultra-rare neurodegenerative lysosomal storage disorder. The company has collaboration and license agreement with Commave Therapeutics SA to develop, manufacture and commercialize the company's product candidates containing SDX and d-methylphenidate; and license agreement with Acer and Relief Therapeutics, Inc. to develop and commercialize rights for OLPRUVA. The company was formerly known as KemPharm, Inc. and changed its name to Zevra Therapeutics, Inc. in February 2023. Zevra Therapeutics, Inc. was incorporated in 2006 and is headquartered in Celebration, Florida.

Zura Bio Limited, a clinical-stage biotechnology company, focuses on developing novel medicines for immune and inflammatory disorders. It develops Tibulizumab, an IgG-scFv bispecific dual-antagonist antibody engineered by the fusion of ixekizumab and tabalumab that neutralizes IL-17A and BAFF, which is in Phase 2 clinical trial development; ZB-168, a monoclonal antibody that binds and neutralizes the IL-7 receptor chain that impact on diseases driven by IL7 and thymic stromal lymphopoietin immune pathways; and Torudokimab, a monoclonal antibody that neutralizes IL33, which is in Phase 2 clinical trial development. The company is based in Henderson, Nevada.

Aclaris Therapeutics, Inc. a clinical-stage biopharmaceutical company, engages in the development of novel drug candidates for immune-inflammatory diseases in the United States. The company operates through two segments, Therapeutics and Contract Research. The Therapeutics segment is involved in identifying and developing therapies to address significant unmet needs for immuno-inflammatory diseases. The Contract Research segment provides laboratory services. It develops Zunsemetinib (ATI-450), an MK2 inhibitor which is under Phase 1b/2 trials for the treatment of metastatic breast and pancreatic cancer; ATI-1777, a soft JAK 1/3 inhibitor, completed Phase 2b trails for the treatment of moderate to severe atopic dermatitis and other dermatologic conditions; and ATI-2138, an oral covalent inhibitor of ITK and JAK3 inhibitor under Phase 1 trials as a treatment for T cell-mediated autoimmune diseases. The company was incorporated in 2012 and is headquartered in Wayne, Pennsylvania.

Ventyx Biosciences, Inc., a clinical-stage biopharmaceutical company, develops small molecule product candidates to address a range of inflammatory diseases. The company's lead clinical product candidate is VTX958, a selective allosteric tyrosine kinase type 2 inhibitor for psoriasis, psoriatic arthritis, and Crohn's disease. It is also developing VTX002, a sphingosine 1 phosphate receptor modulator that is in Phase II clinical trials for the treatment of ulcerative colitis; and VTX2735, a peripheral-targeted NOD-like receptor protein 3 inflammasome inhibitor to treat patients with cryopyrin-associated periodic syndrome. In addition, the company develops VTX3232, a CNS-penetrant NLRP3 inhibitor. Ventyx Biosciences, Inc. was incorporated in 2018 and is based in San Diego, California.

Inozyme Pharma, Inc., a clinical-stage rare disease biopharmaceutical company, focuses on developing novel therapeutics for the treatment of vasculature, soft tissue, and skeleton diseases. The company's lead product candidate is INZ-701, a soluble, recombinant, genetically engineered, and fusion protein for the treatment of ENPP1 and ABCC6 deficiencies, as well as patients with end-stage kidney disease receiving hemodialysis. It has a license agreement with Yale University for specified therapeutic and prophylactic products. The company was incorporated in 2015 and is headquartered in Boston, Massachusetts.

Kezar Life Sciences, Inc., a clinical-stage biotechnology company, engages in the discovery and development of novel small molecule therapeutics to treat unmet needs in immune-mediated diseases and cancer in the United States. The company's lead product candidate is zetomipzomib (KZR-616), a selective immunoproteasome inhibitor that is in Phase 2b clinical trials for various indications, including lupus nephritis, dermatomyositis, and polymyositis; Phase 1b clinical trials in systemic lupus erythematosus; and completed Phase 2a clinical trials in lupus nephritis. Its preclinical products include KZR-261, a novel first-in-class protein secretion inhibitor for the treatment of tumors resistant to traditional chemotherapeutics. Kezar Life Sciences, Inc. was incorporated in 2015 and is headquartered in South San Francisco, California.