Immunomedics Offers Update on Phase 3 PANCRIT-1 Trial of Clivatuzumab Tetraxetan in Patients with Advanced Pancreatic Cancer

Immunomedics, Inc.,

today announced that the Company is terminating the Phase 3 PANCRIT-1 trial with yttrium-90-labeled (90Y) clivatuzumab tetraxetan in patients with metastatic pancreatic cancer who had received at least two prior therapies, one of which must have been a gemcitabine-containing regimen. The decision to terminate the trial early is based on the recommendation from the independent Data and Safety Monitoring Board (DSMB), following a planned interim analysis of data on overall survival (OS) after more than 50% of the required 371 deaths had occurred. The interim analysis showed that the treatment arm of 90Y-clivatuzumab tetraxetan combined with low-dose gemcitabine and best supportive care did not demonstrate a sufficient improvement in OS as compared to placebo plus low-dose gemcitabine and best supportive care. "Given the significant unmet medical need in pancreatic cancer, we are disappointed that clivatuzumab tetraxetan did not produce the desired outcome and will review our future strategy for this antibody with key opinion leaders," remarked Cynthia L. Sullivan, President and Chief Executive Officer. "We would like to thank our clinical investigators and their patients and families for participating in this study. Pancreatic cancer is a challenging disease to treat but we remain fully committed to bringing innovative products, such as IMMU-132 (antibody-drug conjugate, sacituzumab govitecan) and (E1)-3s (T-cell redirecting immuno-oncology bispecific antibody), to address this unmet need," Ms. Sullivan added. "Both these other products have shown activity in pancreatic cancers, either clinically (IMMU-132) or preclinically [(E1)-3s]," Ms. Sullivan commented further.