PD1 and PARP for Maintenance Therapy in NSLLC

This study has 2 phases: an Induction Phase (4 Cycles) and a Maintenance Phase (Up to 31 cycles ). In the Induction Phase, participants receive pd1 plus carboplatin plus a taxane (paclitaxel or nab-paclitaxel). In the Maintenance Phase, participants with a partial or complete disease response or with stable disease after completing four cycles of induction therapy and who meet eligibility criteria will be randomly assigned to receive PD1 plus maintenance PAPR. In the Maintenance Phase, participants randomly assigned to receive pembrolizumab for up to 31 cycles plus maintenance until centrally verified progressive disease (PD), intolerable toxicities, or physician decision."