HONG KONG – In one of the latest combination efforts against cancer, Kahr Medical Ltd. is teaming up with Switzerland's Basel-based Roche Holding AG to study the use of the former's lead program, DSP-107, in combination with the latter's PD-L1-blocking checkpoint inhibitor, Tecentriq (atezolizumab), in patients with advanced non-small-cell lung carcinoma refractory to checkpoint inhibitors.