...NSCLC, with PD-L1 tumor proportion Score ≥50% (Cohort A); recurrent or metastatic SCCHN with PD-L1 combined positive scores ≥20 (Cohort B)….Cohort A, 8 pts (53.3%) had a partial response (PR; 4 confirmed), while 5 had stable disease; 2 pts had progressive disease (PD). In Cohort B, 2 pts (50%) had a PR (1 confirmed) and 2 pts had PD....This preliminary analysis suggests combining IO102-IO103 and pembrolizumab in pts with metastatic NSCLC and recurrent/metastatic SCCHN is tolerable, with encouraging clinical activity, and supports further development.