CStone Pharmaceuticals, a biopharmaceutical company, researches, develops, and commercializes immuno-oncology and precision medicines to address the unmet medical needs of cancer patients in China and internationally. It offers Sugemalimab, a monoclonal antibody against programmed death (PD) ligand 1; GAVRETO, an RET inhibitor for the treatment of patients with advanced or metastatic RET-mutant medullary and RET fusion-positive thyroid cancers; and avapritinib, a KIT/PDGFRA inhibitor to treat adults with unresectable or metastatic gastrointestinal stromal tumors harboring a PDGFRA exon 18 mutation. The company's product pipeline includes Nofazinlimab, a PD-1 antibody for the treatment of patients with hepatocellular carcinoma; Ivosidenib, an isocitrate dehydrogenase 1 (IDH1) inhibitor to treat adults with relapsed or refractory acute myeloid leukemia with an IDH1 mutation; and Fisogatinib, an FGFR4 inhibitor to treat hepatocellular carcinoma. Its products also comprise CS1002, CS2006, CS3002, CS3005, CS2007, CS2008, and CS500 for solid tumors; and CS5001 for solid tumors and hematologic malignancies. The company was incorporated in 2015 and is headquartered in Shanghai, China.

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