Mersana Therapeutics initiates Phase 1 trial of XMT-2056

Mersana Therapeutics announced the initiation of patient dosing in its Phase 1 clinical trial of XMT-2056, the company’s lead Immunosynthen product candidate. "We believe this trial will give us important insights into XMT-2056’s tolerability and clinical activity profile across a range of solid tumors while also helping to demonstrate the differentiated nature of our Immunosynthen platform, which is designed to take ADCs beyond the cytotoxic realm by enabling innate immune activation," said Anna Protopapas, President and Chief Executive Officer of Mersana Therapeutics. "Given the preclinical activity XMT-2056 has demonstrated as a monotherapy and in combination with multiple agents, including standard-of-care HER2 therapies, we believe XMT-2056 may offer a differentiated and highly complementary therapeutic approach. We are excited to have candidates derived from all three of our ADC platforms in active clinical trials, demonstrating our continued innovation and leadership within the ADC space."