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ABCL-073 Polatuzumab Vedotin Plus Rituximab, Cyclophosphamide, Doxorubicin, and Prednisone (Pola-R-CHP) Versus Rituximab, Cyclophosphamide, Doxorubicin, Vincristine and Prednisone (R-CHOP) Therapy in Patients With Previously Untreated Diffuse Large B-Cell Lymphoma (DLBCL): Results From the Phase III POLARIX Study

C. Flowers, H. Tilly, F. Morschhauser, LH. Sehn, JW. Friedberg, M. Trněný, JP. Sharman, C. Herbaux, JM. Burke, M. Matasar, S. Rai, K. Izutsu, N. Mehta-Shah, L. Oberic, A. Chauchet, W. Jurczak, Y. Song, R. Greil, L. Mykhalska, JM. Bergua-Burgués,...

. 2022 ; 22 Suppl 2 (-) : S358-S359. [pub] -

Jazyk angličtina Země Spojené státy americké

Typ dokumentu časopisecké články, randomizované kontrolované studie

Perzistentní odkaz   https://www.medvik.cz/link/bmc22024249

CONTEXT: R-CHOP is the standard of care for newly diagnosed DLBCL patients; however, 40% remain uncured. Polatuzumab vedotin (Pola), a CD79b-targeting antibody-drug conjugate, has shown promising activity/safety in a Phase Ib/II study (Tilly, et al. Lancet Oncol 2019). We report the Phase III double-blind, placebo-controlled, international POLARIX study (NCT03274492), which compared Pola-R-CHP with R-CHOP in treatment-naïve DLBCL patients with an International Prognostic Index score of 2-5. DESIGN: Patients were randomized (1:1) to six cycles of Pola-R-CHP or R-CHOP and on Day 1 of each cycle received Pola 1.8mg/kg or vincristine 1.4mg/m2, plus intravenous rituximab 375mg/m2, cyclophosphamide 750mg/m2, and doxorubicin 50mg/m2. Patients also received oral prednisone 100mg once daily (Days 1-5) and two further cycles of rituximab. The primary endpoint was investigator-assessed progression-free survival (PFS). RESULTS: Overall, 879 patients (median age 65 [range 19-80] years) were randomized (Pola-R-CHP: n=440; R-CHOP: n=439). At primary data cut-off (28 June 2021), median follow-up was 28.2 months. PFS was superior with Pola-R-CHP vs R-CHOP (hazard ratio [HR] 0.73; 95% confidence interval [CI]: 0.57-0.95; P=0.02) and 2-year PFS rate was improved (76.7% [95% CI: 72.7-80.8] vs 70.2% [95% CI: 65.8-74.6], respectively). Investigator-assessed event-free survival favored Pola-R-CHP vs R-CHOP (HR 0.75; 95% CI: 0.58-0.96; P=0.02) and overall survival was comparable (HR 0.94; 95% CI: 0.65-1.37; P=0.75). While independent review committee-assessed end-of-treatment complete response rate by positron emission tomography-computed tomography was not significantly different with Pola-R-CHP (78.0%) vs R-CHOP (74.0%; P=0.16), disease-free survival suggested more durable responses with Pola-R-CHP vs R-CHOP (HR 0.70; 95% CI: 0.50-0.98). Safety profiles were similar for Pola-R-CHP vs R-CHOP: grade 3-4 adverse event (AE) rates, 57.7% vs 57.5%, respectively; serious AEs, 34.0% vs 30.6%; grade 5 AEs, 3.0% vs 2.3%; AEs leading to dose reduction, 9.2% vs 13.0%; and peripheral neuropathy, any grade, 52.9% vs 53.9%. At data cut-off, fewer patients treated with Pola-R-CHP (23%) vs R-CHOP (30%) had received ≥1 subsequent anti-lymphoma therapy. CONCLUSIONS: As the first-line treatment of DLBCL, Pola-R-CHP demonstrated a 27% reduction in the relative risk of disease progression, relapse, or death, and a similar safety profile, compared with R-CHOP.

1st Faculty of Medicine Charles University General Hospital Prague Czech Republic

BC Cancer Centre for Lymphoid Cancer and the University of British Columbia Vancouver Canada

Centre Henri Becquerel and University of Rouen Rouen France

CHRU Besançon Besançon France

CHU de Montpellier Montpellier France

Clinical Hospital Feofaniya Kyiv Ukraine

Genentech Inc South San Francisco USA

Hematology Oncology and Stem Cell Transplantation Unit Istituto Nazionale Tumori Fondazione 'G Pascale' IRCCS Naples Italy

Hoffmann La Roche Ltd Mississauga Canada

Hospital Erasto Gaertner Curitiba Brazil

Hospital San Pedro de Alcántara Cáceres Spain

Hospital Vall d'Hebron Vall d'Hebron Institute of Oncology Barcelona Spain

Institut Universitaire du Cancer Toulouse Oncopole Toulouse France

Kindai University Faculty of Medicine Osaka Sayama City Japan

Maria Sklodowska Curie National Research Institute of Oncology Krakow Poland

Medical Research Institute Pusan National University Hospital Pusan National University School of Medicine Busan Korea Republic of

Memorial Sloan Kettering Cancer Center New York City Montvale USA

Memorial Sloan Kettering Cancer Center New York City USA

National Cancer Center Hospital Tokyo Japan

Odette Cancer Centre Sunnybrook Health Sciences Centre University of Toronto Toronto Canada

Paracelsus Medical University Salzburg Cancer Research Institute CCCIT and Cancer Cluster Salzburg Salzburg Austria

Peking University Cancer Hospital Beijing China

Princess Alexandra Hospital Brisbane Australia

Rocky Mountain Cancer Centers US Oncology Aurora USA

Taipei Veterans General Hospital Taipei Taiwan

The University of Texas MD Anderson Cancer Center Houston USA

Univ Lille CHU Lille ULR 7365 GRITA Group de Recherche sur les formes Injectables et les Technologies Associées Lille France

Washington University in St Louis St Louis USA

Willamette Valley Cancer Institute US Oncology Eugene USA

Wilmot Cancer Institute University of Rochester Rochester USA

Citace poskytuje Crossref.org

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