Onconova Therapeutics, Inc., a clinical-stage biopharmaceutical company, focuses on discovering and developing novel products to treat cancer. The company has proprietary targeted anti-cancer agents designed to disrupt specific cellular pathways that are important for cancer cell proliferation. Its novel proprietary multi-kinase inhibitor ON 123300 to target CDK4/6 and other tyrosine kinases. The company's product candidate oral rigosertib, which is in Phase 1 study of rigosertib in combination with a PD-1 inhibitor for patients with progressive K-Ras mutated non-small cell lung cancer; and in Phase 1b/2 for recessive dystrophic epidermolysis bullosa. In addition, it is involved in preclinical work investigating rigosertib in COVID-19. The company has a license agreement with SymBio Pharmaceuticals Limited; and license, development, and commercialization agreement with Pint International SA. Onconova Therapeutics, Inc. was founded in 1998 and is headquartered in Newtown, Pennsylvania.