Data leak kickstarts ESMO, BMS reports autoimmune CAR T death, pharma M&A outpaces 2025

Merck stole the show at the European Society for Medical Oncology (ESMO) annual conference, with new data on its Moderna-partnered personalized cancer vaccine leaking prior to the presentation and antibody-drug conjugate sac-TMT making a splash in endometrial cancer; Bristol Myers Squibb revealed the death of a patient with multiple sclerosis in an early-stage trial of zola-cel; and pharma is on track to easily surpass last year’s deal count.