ASH Clinical News ACN_5.4_Full Issue_web | Page 28

Literature Scan ELOQUENT-3: A New Elotuzumab-Based Triplet Combination in Previously Treated Myeloma Results from the phase II ELOQUENT-3 trial demonstrate that the combination of elotuzumab plus pomalidomide and dexamethasone extended progression- free survival (PFS) compared with pomalidomide and dexamethasone alone in patients with multiple myeloma (MM) that was refractory and/or relapsed following treatment with lenalidomide and a proteasome inhibitor (PI). The findings, which were published in the New England Journal of Medicine, also confirm the previously reported safety profile of this three-drug regimen, suggesting that the approach could represent an alternative triplet regimen for patients with lenalidomide-refractory disease. In ELOQUENT-3, Meletios A. Dimopoulos, MD, of National and Kap- odistrian University of Athens in Greece, and co-authors evaluated the safety and efficacy of elotuzumab plus pomalidomide and dexamethasone, compared with pomalidomide and dexamethasone alone in 117 patients with previously treated MM. Patients were enrolled from March 2016 through April 2017 at 43 sites in Eu- rope, North America, Japan, and Australia. All participants had received at least two prior therapies and had disease that was considered refractory to PI, lenalidomide, and the most recent treatment; patients with relapsed and refractory disease must have achieved at least a partial response (PR) to previous treatment with PI or lenalidomide or both but must also have had disease that progressed within six months and was refractory to last treatment. After randomization by number of previous lines of therapy (2-3 or ≥4) and International Staging System disease stage at enrollment: (10 mg/kg on days 1, 8, 15, and 22 during cycles 1-2 and 20 mg/kg on day 1 of each cycle thereafter) Treatment was given in 28-day cycles until disease progression, unacceptable toxicity, or withdrawal of consent. “The characteristics of the two treat- ment groups were generally well balanced at baseline,” the researchers noted, with a median of three previous lines of therapy TABLE. (range = 2-8) in both groups. “In all, 68 percent of the patients in the elotuzumab group and 72 percent in the control group had MM that was refractory to both lenalidomide and a PI.” At the time of data cutoff (February 2018), patients were followed for a mini- mum of 9.1 months. During the follow-up period, 40 percent of elotuzumab-treated patients and 20 percent of the control group were continuing to receive their Investigator-Assessed Treatment Response Overall response — no. (% [95% CI]) Elotuzumab group (N=60) Control group (N=57) 32 (53 [40-66]) 15 (26 [16-40]) Best overall response — no. (%) • 57 patients received pomalidomide (4 mg/day on days 1-21 of each cycle) plus dexamethasone (40 mg/ week for patients ≤75 years or 20 mg/week for patients >75 years) Stringent complete response 2 (3) 0 Complete response 3 (5) 1 (2) • 60 patients received pomalidomide and dexamethasone plus elotuzumab 7 (12) 4 (7) Partial response Very good partial response 20 (33) 10 (18) Stable disease 13 (22) 16 (28) Progressive disease 7 (12) 9 (16) Not evaluable 4 (7) 9 (16) Save the Date! 61st ASH Annual Meeting and Exposition ® Orlando, Florida • December 7-10, 2019 Join a global community of hematologists at the premier event of the year. “We meet as family at ASH.” “Where science meets medicine, face to face.” “It’s the discussion and dialogue that brings it to life.” www.hematology.org/annualmeeting ASH 61st ACN HalfPage 10-5x7.indd 1 26 ASH Clinical News 1/16/19 4:58 PM March 2019