Rigel Pharmaceuticals, Inc. operates as a clinical stage biotechnology company. The company is headquartered in South San Francisco, California and currently employs 172 full-time employees. The company went IPO on 2000-11-29. The firm is engaged in developing and providing therapies for patients with hematologic disorders and cancer. The company focuses on products that address signaling pathways that are critical to disease mechanisms. Its products include TAVALISSE, REZLIDHIA, and GAVRETO. TAVALISSE is an oral spleen tyrosine kinase inhibitor for the treatment of adult patients with chronic immune thrombocytopenia. REZLIDHIA is used for the treatment of adult patients with relapsed or refractory (R/R) acute myeloid leukemia (AML) with a susceptible isocitrate dehydrogenase-1 (IDH1) mutation. GAVRETO is a once daily, small molecule, oral, kinase inhibitor of wild type rearranged during transfection (RET) and oncogenic RET fusions. The company is used for the treatment of adult and pediatric patients 12 years of age and older with advanced or metastatic RET fusion-positive thyroid cancer who require systemic therapy and who are radioactive iodine-refractory.