Missing statistical significance on the primary overall survival phase III endpoint with antibody-drug conjugate (ADC) sigvotatug vedotin compared with docetaxel in non-small-cell lung cancer (NSCLC), Pfizer Inc., which gained the candidate through its $43 billion buyout of Seagen Inc. in 2023, is forging ahead based on subgroup signals, phase I data and an ongoing phase III Keytruda combination effort currently underway.