Daratumumab, lenalidomide, and dexamethasone in relapsed/refractory myeloma: a cytogenetic subgroup analysis of POLLUX

High cytogenetic risk abnormalities confer poor outcomes in multiple myeloma patients. In POLLUX, daratumumab/lenalidomide/dexamethasone (D-Rd) demonstrated significant clinical benefit versus lenalidomide/dexamethasone (Rd) in relapsed/refractory multiple myeloma (RRMM) patients. We report an updat...

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Published in:Blood cancer journal (New York) 2020-11, Vol.10 (11), p.111-111, Article 111
Main Authors: Kaufman, Jonathan L, Dimopoulos, Meletios A, White, Darrell, Benboubker, Lotfi, Cook, Gordon, Leiba, Merav, Morton, James, Joy Ho, P, Kim, Kihyun, Takezako, Naoki, Moreau, Philippe, Sutherland, Heather J, Magen, Hila, Iida, Shinsuke, Kim, Jin Seok, Miles Prince, H, Cochrane, Tara, Oriol, Albert, Bahlis, Nizar J, Chari, Ajai, O'Rourke, Lisa, Trivedi, Sonali, Casneuf, Tineke, Krevvata, Maria, Ukropec, Jon, Kobos, Rachel, Avet-Loiseau, Hervé, Usmani, Saad Z, San-Miguel, Jesus
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Language:eng
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Summary:High cytogenetic risk abnormalities confer poor outcomes in multiple myeloma patients. In POLLUX, daratumumab/lenalidomide/dexamethasone (D-Rd) demonstrated significant clinical benefit versus lenalidomide/dexamethasone (Rd) in relapsed/refractory multiple myeloma (RRMM) patients. We report an updated subgroup analysis of POLLUX based on cytogenetic risk. The cytogenetic risk was determined using fluorescence in situ hybridization/karyotyping; patients with high cytogenetic risk had t(4;14), t(14;16), or del17p abnormalities. Minimal residual disease (MRD; 10 ) was assessed via the clonoSEQ assay V2.0. 569 patients were randomized (D-Rd, n = 286; Rd, n = 283); 35 (12%) patients per group had high cytogenetic risk. After a median follow-up of 44.3 months, D-Rd prolonged progression-free survival (PFS) versus Rd in standard cytogenetic risk (median: not estimable vs 18.6 months; hazard ratio [HR], 0.43; P 
ISSN:2044-5385
2044-5385