Amgen’s Imdelltra lands major new lung cancer victory on September 09, 2026 Amgen AstraZeneca DeLLphi-305 ES-SCLC Imdelltra Imfinzi Overall Survival Phase 3 Small cell carcinoma of lung Tarlatamab +
Royalty Pharma Buys $885M Imdelltra Royalty Stake from BeOne on August 26, 2025 Amgen Bispecific DLL3 DLL3 gene ES-SCLC Imdelltra Malignant neoplasm of lung royalty Small cell carcinoma of lung upfront +