Front-line VenObi Combination Followed by Ven or VenZan Combination in Patients With Residual Disease: a MRD Tailored Treatment for Young Patients With High-risk CLL

"Patients will receive obinutuzumab 1000mg IV (cycle 1: day 1,8,15; Cycle2-6: day1) + venetoclax 400mg/d (preceded by a ramp-up phase) until cycle 9, day 28.~At cycle9:~* if uMRD = Venetoclax 400 mg/d orally until cycle 13.~* if residual disease in the BM or PB = Venetoclax 400 mg/d + Zanubrutinib 160 mg orally twice daily until cycle 21.~then, at cycle 21:~* if uMRD = stop treatment~* if residual disease in the BM or PB = zanubrutinib 160 mg orally twice daily until disease progression"