Background: POM demonstrated clinical efficacy and favorable tolerability in RRMM pts previously treated with lenalidomide (LEN) and bortezomib (BORT), in the randomized, multicenter, open label MM-002 phase II trial. This analysis evaluated whether the efficacy and tolerability of POM+LoDEX treatment is consistent across age subgroups. Methods: Pts with RRMM who had received ≥ 2 prior therapies, including LEN and BORT, and were refractory to their last regimen were randomized to either POM+LoDEX (POM 4 mg/day, days 1–21 of a 28-day cycle; LoDEX 40 mg/week) or POM alone. End points included progression-free survival (PFS), response rate (based on EBMT criteria), response duration, and safety. A post-hoc analysis based on age (≤ 65 vs. > 65 yrs) was conducted. Results: A total of 221 pts with a mean age of 64 yrs (range 34–88) were randomized to POM+LoDEX (n = 113) or POM (n = 108). The efficacy outcomes and the most common treatment emergent grade 3/4 adverse events (AEs) for the age subgroups according to treatment arm are presented in the Table. Conclusions: Regardless of age (≤ 65 vs. > 65 yrs), POM with or without LoDEX was effective and generally well tolerated in heavily pretreated RRMM pts who had already received LEN and BORT. POM with or without LoDEX represents a new clinical option for pts previously treated with numerous lines of therapy. Updated data will be presented at the meeting. Clinical trial information: NCT00833833.

^a For pts who achieved ≥ PR. DoR, duration of response; MR, minimal response; PR, partial response.