AstraZeneca PLC's faith in the benefits of combining the firm's checkpoint inhibitor Imfinzi with its experimental anti-CTLA-4 monoclonal antibody tremelimumab has been shaken once again as it failed to improve overall survival in patients with late-stage small cell lung cancer (SCLC), although Imfinzi monotherapy did improve OS.
Top-level results from the final analysis of the Phase III CASPIAN trial showed that Imfinzi (durvalumab) in combination with a...







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