Onconova announces initiation Phase 1 trial of ON 123300 in China by partner

Onconova Therapeutics announced the initiation of a Phase 1 clinical trial in China for ON 123300 by its partner, HanX Biopharmaceuticals. In December 2017, Onconova entered into an agreement with HanX Biopharmaceuticals for the development, registration, and commercialization of ON 123300 in China. The agreement included a licensing fee, and future potential milestone payments and royalties on sales. Outside of China, Onconova retains rights in rest of the world. ON 123300 is a novel small molecule, and a dual inhibitor of CDK4/6 and ARK5, a key enzyme controlling cellular energy homeostasis. Inhibition of ARK5 by ON 123300 results in the collapse of oncogene-altered energy metabolism, leading to programmed cell death. Differentiated from health authority approved CDK4/6 inhibitors, ON 123300 exhibits single agent toxicity against various cancers in preclinical studies including breast cancer, colon cancer, mantle cell lymphoma and multiple myeloma.