In the phase 3 LYM-3002 study comparing intravenous VR-CAP with R-CHOP in patients with newly-diagnosed, measurable stage II-IV mantle cell lymphoma, not considered or ineligible for transplant, the median progression-free survival was significantly improved with VR-CAP (24.7 versus 14.4 months with R-CHOP; P<0.001). This post-hoc analysis evaluated the association between the improved outcomes and quality of responses achieved with VR-CAP versus R-CHOP in LYM-3002. Patients were randomized to six to eight 21-day cycles of VR-CAP or R-CHOP. Outcomes included progression-free survival, duration of response (both assessed by an independent review committee), and time to next anti-lymphoma treatment, evaluated by response (complete response/unconfirmed complete response and partial response), MIPI risk status, and maximum reduction of lymph-node measurements expressed as the sum of the product of the diameters. Within each response category, the median progression-free survival was longer for patients given VR-CAP than for those given R-CHOP (complete response/unconfirmed complete response: 40.9 versus 19.8 months; partial response: 17.1 versus 11.7 months, respectively); similarly, the median time to next anti-lymphoma treatment was longer among the patients given VR-CAP than among those treated with R-CHOP (complete response/unconfirmed complete response: not evaluable versus 26.6 months; partial response: 35.3 versus 24.3 months). Within the complete/unconfirmed complete and partial response categories, improvements in progression-free survival, duration of response and time to next anti-lymphoma treatment were more pronounced in patients with low-and intermediate-risk MIPI treated with VR-CAP than with R-CHOP. In each response category, more VR-CAP than R-CHOP patients had a sum of the product of the diameters nadir of 0 during serial radiological assessments. Results of this post-hoc analysis suggest a greater duration and quality of response in patients treated with VR-CAP in comparison with those treated with R-CHOP, with the improvements being more evident in patients with low- and intermediate-risk MIPI. LYM-3002 ClinicalTrials.gov: NCT00722137.

Cherkassy Regional Oncology Center Ukraine

Faculty of Medicine Siriraj Hospital Mahidol University Bangkok Thailand

Hospital das Clinicas da Faculdade de Medicina da USP São Paolo Brazil

Janssen Research and Development High Wycombe Buckinghamshire UK

Janssen Research and Development LLC Raritan NJ USA

Masaryk University Hospital Brno Czech Republic

Medical University of Lodz Copernicus Memorial Hospital Poland

Millennium Pharmaceuticals Inc Boston MA USA

Oncology Institute of Southern Switzerland Ospedale San Giovanni Bellinzona Ticino Switzerland

Sun Yat sen University Cancer Center Guangzhou Guangdong China

Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital Japan

University Hospital Leuven Belgium

University of Vienna Vienna General Hospital Austria

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NCT00722137