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Randomized phase 3 ALCANZA study of brentuximab vedotin vs physician's choice in cutaneous T-cell lymphoma: final data.

Randomized phase 3 ALCANZA study of brentuximab vedotin vs physician's choice in cutaneous T-cell lymphoma: final data. Blood advances Horwitz, S. M., Scarisbrick, J. J., Dummer, R., Whittaker, S., Duvic, M., Kim, Y. H., Quaglino, P., Zinzani, P. L., Bechter, O., Eradat, H., Pinter-Brown, L., Akilov, O. E., Geskin, L. J., Sanches, J. A., Ortiz-Romero, P. L., Weichenthal, M., Fisher, D. C., Walewski, J., Trotman, J., Taylor, K., Dalle, S., Stadler, R., Lisano, J. M., Bunn, V., Little, M., Prince, H. M. 2021

Abstract

The primary analysis of the phase 3 ALCANZA trial showed significantly-improved objective responses lasting =4 months (ORR4; primary endpoint) and progression-free survival (PFS) with brentuximab vedotin vs physician's choice (methotrexate or bexarotene) in CD30-expressing mycosis fungoides (MF) or primary cutaneous anaplastic large-cell lymphoma (C-ALCL). Cutaneous T-cell lymphomas often cause pruritus and pain; brentuximab vedotin improved skin symptom burden with no negative effects on quality of life. We report final data from ALCANZA (median follow-up 45.9 months). Adults with previously treated CD30-expressing MF/C-ALCL were randomized to brentuximab vedotin (n = 64) or physician's choice (n = 64). Final data demonstrated improved responses per independent review facility with brentuximab vedotin vs physician's choice: ORR4, 54.7% vs 12.5% (P < .001); complete response, 17.2% vs 1.6% (P = .002). Median PFS with brentuximab vedotin vs physician's choice was 16.7 months vs 3.5 months (P< .001). Median time to next treatment was significantly longer with brentuximab vedotin than with physician's choice (14.2 vs 5.6 months; hazard ratio, 0.27; 95% CI, 0.17-0.42; P < .001). Of 44 patients in the brentuximab vedotin arm who experienced any-grade peripheral neuropathy (PN), (grade 3, n = 6; grade 4, n = 0), 86% (38/44) had complete resolution (26/44) or improvement to grade 1-2 (12/44). PN was ongoing in 18 patients (all grade 1-2). These final analyses confirm improved, clinically meaningful, durable responses and longer PFS with brentuximab vedotin vs physician's choice in CD30-expressing MF or C-ALCL. This trial was registered at https://www.clinicaltrials.gov/ct2/show/NCT01578499 as #NCT01578499.

View details for DOI 10.1182/bloodadvances.2021004710

View details for PubMedID 34507350