Also known as VP-16 and Vepesid.
Phase 3 DeLLphi‑305: IMDELLTRA with durvalumab raised median OS to 21.1 vs 12.7 months, tripled PFS, and produced ~80% one‑year survival versus 53%.
Tarlatamab (IMDELLTRA) plus durvalumab showed statistically significant OS, PFS and ORR benefits versus durvalumab alone in Phase 3 DeLLphi‑305 for first‑line maintenance ES‑SCLC.
Three Phase III trials will test DLL3-targeting obrixtamig in SCLC and epNEC, and HER2 TKI zongertinib as adjuvant therapy in resectable HER2‑mutant NSCLC.
FDA accepted an sBLA for adjuvant PD‑L1 therapy plus chemotherapy in stage III dMMR/MSI‑H colon cancer; agency decision expected Oct 9, 2026.