In cohort 1, patients with MYD88 mutations were randomized 1:1 to receive zanubrutinib 160 mg twice daily or ibrutinib 420 mg once daily; stratifi cations were CXCR4 mutations and prior lines of therapy….At a median follow-up of 43 months, zanubrutinib had higher CR+VGPR rates and clinically meaningful advantages in long-term safety/tolerability versus ibrutinib.