ASH Clinical News ACN_4.14_Full Issue_web | Page 139

IN PATIENTS WHO RECEIVED REVLIMID (lenalidomide) AND A PI POMALYST + dex: A doublet therapy built on a FOUNDATION of POMALYST 2 PROVEN OVERALL SURVIVAL (ITT POPULATION, N=455)* 1.0 POMALYST + low-dose dex HR 0.70; 95% CI 0.54, 0.92; P=0.009 Median OS vs high-dose dex High-dose dex 0.8 0.6 12.4 months (95% CI 10.4, 15.3) 0.4 0.2 8.0 months (95% CI 6.9, 9.0) 0.0 0 3 6 Number of patients at risk: POMALYST + low-dose dex High-dose dex 302 153 248 112 199 84 9 12 15 18 21 24 12 3 1 0 0 Overall survival, months 126 44 71 24 32 11 OS events: POMALYST + low-dose dex = 147/302; high-dose dex = 86/153 OS was based on the assessment by the Independent Review Adjudication Committee (IRAC) review at the fi nal OS analysis. POMALYST + low-dose dex doubled the median PFS of high-dose dex (primary endpoint) • Median PFS was signifi cantly longer with POMALYST + low-dose dex vs high-dose dex (3.6 vs 1.8 months; HR 0.45; 95% CI 0.35, 0.59; P<0.001) The POMALYST doublet: Proven results after REVLIMID and a PI 2 Trial Design: POMALYST was studied in a phase 3 multicenter, randomized, open-label study of POMALYST + low-dose dex vs high-dose dex in patients with relapsed/refractory myeloma who had received ≥2 prior treatment regimens, including REVLIMID and bortezomib, and demonstrated disease progression ≤60 days from the last therapy (ITT population, N=455). Key exclusion criteria included serum bilirubin >2.0 mg/dL, AST/ALT >3.0x upper limit of normal, and CrCl <45 mL/min. Patients in the POMALYST + low-dose dex arm (n=302) received 4 mg of POMALYST on Days 1-21 of 28-day cycles with 40 mg of low-dose dex once daily on Days 1, 8, 15, and 22. Patients in the high-dose dex arm (n=153) received 40 mg of dex once daily on Days 1-4, 9-12, and 17-20 of 28-day cycles. Patients >75 years received 20 mg of dex in the same respective dosing schedules. Patients receiving POMALYST + low-dose dex were required to receive prophylaxis or anti-thrombotic treatment, as well as any other patient with a history of DVT or PE. The primary endpoint was PFS. Treatment continued until disease progression. 1,3