University of Pennsylvania School of Medicine Apr 20 2026 An innovative type of CAR T cell therapy, called KIR-CAR, was shown to be safe, with increasing efficacy corresponding to higher doses of the investigational treatment in nine patients with advanced ovarian cancer, mesothelioma or cholangiocarcinoma (bile duct cancer), according to an early report from an ongoing Phase I dose-escalation clinical trial. The findings represent the first clinical data for this KIR-CAR, which uses natural