Astex Pharmaceuticals, a member of the Otsuka group of pharmaceutical companies, is focused on discovering and developing small molecule therapeutics for oncology. Their proprietary pipeline consists of novel therapies for the treatment of solid tumors and hematological malignancies. Astex's products are planned to be commercialized in the US and Canada by Taiho subsidiaries, and in the rest of the world by Otsuka subsidiaries, pending regulatory approvals.