Orphan Status for Cascadian Colorectal Cancer Therapy
FDA has granted Cascadian Therapeutics an orphan drug designation to tucatinib for treating HER2-positive (HER2+) metastatic colorectal cancer. Tucatinib is an investigational oral, small molecule kinase inhibitor that the company says is highly selective for HER2. Cascadian is currently sponsoring an investigator-initiated Phase 2 study (MOUNTAINEER) evaluating tucatinib in the target patient population. The orphan status was granted based on in vitro and non-clinical HER2+ colorectal tumor models, it says.