[Correspondence] CAR T-cell therapy at first relapse in myeloma

We congratulate Hermann Einsele and colleagues on their phase 3 CARTITUDE-4 trial, a landmark study poised to reshape the therapeutic landscape of relapsed myeloma. By finding a significant overall survival advantage with ciltacabtagene autoleucel (cilta-cel) compared with pomalidomide–bortezomib–dexamethasone or daratumumab–pomalidomide–dexamethasone in patients with lenalidomide-refractory myeloma with one to three previous lines of therapy, CARTITUDE-4 provides compelling evidence that earlier use of CAR T-cell therapy can alter disease trajectory.