Oncternal Therapeutics, Inc. engages in the development of novel oncology therapies for the treatment of cancers with critical unmet medical need. Its product pipeline include Zilovertamab, ONCT-216, ONCT-808 and ONCT-534. The company was founded by David F. Hale and James B. Breitmeyer in September 1997 and is headquartered in San Diego, CA.