“These results represent important progress in the development of DS-7300, which is continuing to show promising durable efficacy in patients with several different types of advanced cancers, including lung, prostate or esophageal cancer,” said Ken Takeshita, MD, Global Head, R&D, Daiichi Sankyo. “Based on these results, we are evaluating next steps for the clinical development of DS-7300 beyond the phase 2 trial recently initiated in patients with extensive-stage small cell lung cancer.”