Merus announces initial interim data from phase 2 trial of petosemtamab

Merus (MRUS) N.V. announced initial interim clinical data as of an April 28, 2025 data cutoff from the ongoing phase 2 trial of the bispecific antibody petosemtamab in combination with standard of care FOLFOX/FOLFIRI in 1L, 2L metastatic CRC, mCRC, and petosemtamab monotherapy in 3L+ mCRC. Updated data will be presented in a plenary session oral presentation by Dr. Moh’d Khushman M.D., Washington University School of Medicine, St. Louis, MO at the AACR-NCI-EORTC International Conference on Molecular Targets and Cancer Therapeutics on Friday, October 24 at 10:20 a.m. ET. “We are encouraged by these early data indicating the promise of petosemtamab to combine safely with chemotherapy, and its potential to benefit a wide range of cancer patients that have metastatic colorectal cancer,” said Bill Lundberg, M.D., President, Chief Executive Officer of Merus. “We look forward to providing a more mature clinical update of a larger cohort of patients from a later cutoff date in our plenary session oral presentation.”