...he was diagnosed with lung adenocarcinoma (LUAD). Next generation sequencing (NGS) revealed that he harbors ROS1 fusion and NBN germline mutation….the patient was switched to sintilimab combined with niraparib and the efficacy was evaluated as stable disease (SD), with a progression-free survival (PFS) of more than 12 months, and the overall survival (OS) is 23 months up to now.