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Updated: Aug 6, 2025

In Vitro Methods for Comparing Target Binding and CDC Induction Between Therapeutic Antibodies: Applications in Biosimilarity Analysis
Published on: May 4, 2017
Superiority of polatuzumab vedotin over other novel agents in previously untreated ABC-type diffuse large B-cell
Zhixin Sheng1, Dianfang Li1, Bing Chen2
1Department of Hematology, Weifang People's Hospital, Weifang, China.
Abstract:
Because of lacking of head-to-head comparison among polatuzumab (Pola) vedotin and other novel agents for untreated diffuse large B-cell lymphoma (DLBCL), the optimal option remains undefined. We searched twelve relevant published reports, covering 8376 subjects. Interestingly, the PFS benefit with Pola-R-CHP over other regimens was found prominently in those B-cell-like type (ABC-type) patients. For those ABC-type patients, the PFS advantage with Pola-R-CHP was statistically significant, when compared to R-CHOP+Bort (HR: 0.52, P=0.02), R-CHOP+Ibru (HR: 0.43, P=0.001), R-CHOP+Lena (HR: 0.51, P=0.009), G-CHOP (HR: 0.46, P=0.008), and R-CHOP (HR: 0.40, P<0.001). Meanwhile, for those germinal center B-cell-like (GCB) type patients, no PFS advantage with Pola-R-CHP was found when compared to R-CHOP+Bort (HR: 1.18, P=0.46), R-CHOP+Lena (HR: 1.21, P=0.45), G-CHOP (HR: 1.39, P=0.14), R-CHOP-14 (HR: 0.94, P=0.82), and R-CHOP (HR: 1.00, P=1). The PFS advantage with Pola-R-CHP over other regimens might be confined to those patients of ABC-type DLBCL.
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