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Protagonist Therapeutics Inc

PTGX · NASDAQ

Pharmaceutical Preparation Manufacturing

Protagonist Therapeutics is a clinical stage biopharmaceutical company with multiple peptide-based new chemical entities in different stages of development. Rusfertide (PTG-300) is an injectable hepcidin mimetic in a Phase 2 proof-of-concept clinical trial for polycythemia vera, and a separate Phase 2 clinical study for hereditary hemochromatosis. PN-943 is an orally delivered, gut-restricted alpha-4-beta-7 integrin specific antagonist peptide in a 150 patient Phase 2 study for the potential treatment of inflammatory bowel disease, with ulcerative colitis as the initial targeted indication. PTG-200 is an orally delivered, gut-restricted, interleukin-23 receptor specific antagonist peptide in a Phase 2 clinical trial for Crohn's disease. Two additional second-generation oral interleukin-23 receptor antagonist candidates PN-235 and PN-232, are in early stages of clinical development. The Company has developed a proprietary technology platform to discover and develop novel peptide-based therapeutics to address significant unmet medical needs and transform existing treatment paradigms.

Market Data

Price $97.05 +0.39 (+0.40%)
Market Cap$6.19B
P/E Ratio—
EPS$—
52W High$97.54
52W Low$37.94
Beta2.23

Data from Finnhub · Updated Mar 11, 2026

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