WILMINGTON, Del.–(BUSINESS WIRE)–Landmark results from the DeLLphi-305 Phase III trial showed IMFINZI® (durvalumab) plus Amgen’s tarlatamab-dlle demonstrated a statistically significant and highly clinically meaningful improvement in the primary endpoint of overall survival (OS) and in the key secondary endpoint of progression-free survival (PFS) versus IMFINZI alone as a 1st-line maintenance treatment. The trial included patients with extensive-stage small cell lung cancer (ES-SCLC) who had