Update on PEARL Phase III trial of Imfinzi monotherapyin Stage IV non-small cell lung cancer
The PEARL Phase III trial for AstraZeneca’s Imfinzi (durvalumab) did not achieve statistical significance for the primary endpoints of improving overall survival (OS) versus platinum-based chemotherapy as a monotherapy treatment of patients with Stage IV (metastatic) non-small cell lung cancer (NSCLC) whose tumour cells express high levels (25% or more) of PD-L1, or in a subgroup of patients at low risk of early mortality. There was an improvement in OS with Imfinzi monotherapy, which was clinically meaningful in the subset of patients with PD-L1 tumour expression greater than 50%, a