Onconova Therapeutics, Inc. operates as a clinical-stage biopharmaceutical company. It focuses on discovering and developing small molecule drug candidates to treat cancer. The Company's products under different phases of development include Rigosertib intravenous (IV), Rigosertib Oral, Rigosertib IV, ON 013105 and Recilisib. Onconova Therapeutics, Inc. is headquartered in Newtown, Pennsylvania.