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Medline ® Abstract for Reference 93

of 'Treatment of relapsed or refractory multiple myeloma'

A phase 2 trial of lenalidomide, bortezomib, and dexamethasone in patients with relapsed and relapsed/refractory myeloma.
Richardson PG, Xie W, Jagannath S, Jakubowiak A, Lonial S, Raje NS, Alsina M, Ghobrial IM, Schlossman RL, Munshi NC, Mazumder A, Vesole DH, Kaufman JL, Colson K, McKenney M, Lunde LE, Feather J, Maglio ME, Warren D, Francis D, Hideshima T, Knight R, Esseltine DL, Mitsiades CS, Weller E, Anderson KC
Blood. 2014;123(10):1461. Epub 2014 Jan 15.
In this prospective, multicenter, phase 2 study, 64 patients with relapsed or relapsed and refractory multiple myeloma (MM) received up to 8 21-day cycles of bortezomib 1.0 mg/m(2) (days 1, 4, 8, and 11), lenalidomide 15 mg/day (days 1-14), and dexamethasone 40/20 mg/day (cycles 1-4) and 20/10 mg/day (cycles 5-8) (days of/after bortezomib dosing). Responding patients could receive maintenance therapy. Median age was 65 years; 66% were male, 58% had relapsed and 42% had relapsed and refractory MM, and 53%, 75%, and 6% had received prior bortezomib, thalidomide, and lenalidomide, respectively. Forty-eight of 64 patients (75%; 90% confidence interval, 65-84) were alive without progressive disease at 6 months (primary end point). The rate of partial response or better was 64%; median duration of response was 8.7 months. Median progression-free and overall survivals were 9.5 and 30 months, respectively (median follow-up: 44 months). Common treatment-related toxicities included sensory neuropathy (53%), fatigue (50%), and neutropenia (42%); common grade 3/4 treatment-related toxicities included neutropenia (30%), thrombocytopenia (22%), andlymphopenia (11%). Grade 3 motor neuropathy was reported in 2 patients. Lenalidomide-bortezomib-dexamethasone appears effective and tolerable in patients with relapsed or relapsed and refractory MM, demonstrating substantial activity among patients with diverse prior therapies and adverse prognostic characteristics. This trial is registered with www.clinicaltrials.gov as #NCT00378209.
Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA;