Retrospective Analysis of Clinical Outcomes of Utilizing R-CHOP Plus Zanubrutinib for High-Risk Diffuse Large B Cell Lymphoma Patients with Extranodal Involvement or MYC/BCL2 Double Expression

Background: Diffuse large B-cell lymphoma (DLBCL) patients with extranodal involvement and double expression of MYC and BCL2 often have a poorer prognosis when treated with the standard first-line R-CHOP regimen. The 5-year progression-free survival (PFS) and overall survival (OS) rates are both below 40% for these high-risk DLBCL cases. In this study, we perform a retrospective analysis of the clinical outcomes and adverse events of the high-risk DLBCL patients with extranodal involvement and double expression, who were admitted to our center and used Bruton's tyrosine kinase inhibitor (BTKi) zanubrutinib on the basis of R-CHOP regimen.