BioNTech and BMS Announce First Global Data for PD-L1xVEGF Bispecific in Small Cell Lung Cancer, Set Phase 3 Dose on September 08, 2025 BioNTech BNT327 Burning Mouth Syndrome Myers overall response rate PD-L1 PD-L1xVEGF Pharmacotherapy pumitamig Small cell carcinoma of lung squibb Vascular Endothelial Growth Factor A +