Revolution Medicines....today reported interim data from the company’s ongoing Phase 1b/2 clinical trial (RMC-4630-02) evaluating the combination of RMC-4630 and cobimetinib (Cotellic®)....tumor volume reduction was observed in three of seven patients with colorectal cancers harboring KRAS mutations who were treated at the highest dose of RMC-4630, including one unconfirmed partial response in a patient carrying a KRASG12D mutation.