Bristol Myers Squibb announced the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) has recommended marketing authorization approval of Abecma® (idecabtagene vicleucel; ide-cel) for the treatment of adult patients with relapsed and refractory multiple myeloma who have received at least two prior therapies, including an immunomodulatory agent (IMiD), a proteasome inhibitor (PI), and an anti-CD38 monoclonal antibody. The European Commission (EC), which has the authority to approve medicines for the European Union (EU), will now review the CHMP recommendation.
The CHMP adopted a positive opinion based on the final progression-free survival (PFS) analysis from the pivotal, Phase 3, open-label, global, randomized, controlled KarMMa-3 study evaluating Abecma compared with standard combination regimens in adults with relapsed and refractory multiple myeloma after two to four prior lines of therapy, including an IMiD, a PI, and an anti-CD38 monoclonal antibody, which are the three main classes of therapy (triple-class exposed) in multiple myeloma, and who were refractory to their last regimen. Results recently presented at the American Society of Hematology (ASH) Annual Meeting in December 2023 showed, at a median follow-up of 30.9 months (range: 12.7-47.8), Abecma significantly improved PFS compared with standard regimens, with a median PFS of 13.8 months vs. 4.4 months (HR:0.49; 95% CI: 0.38-0.63), representing a 51% reduction in the risk of disease progression or death with Abecma.
Results for the key secondary endpoint of overall response rate showed the majority of patients (71%; (95% CI: 66-77) treated with Abecma achieved a response, with 44% (95% CI: 38-50) achieving a complete response or stringent complete response. In comparison, less than half of patients (41%; 95% CI: 34-51) who received standard regimens achieved a response, with 5% (95% CI: 2-9) experiencing a complete response or stringent complete response.
Treatment with Abecma exhibited a well-established safety profile, with mostly low-grade and transient occurrences of cytokine release syndrome (CRS) and neurotoxicity. In patients treated with Abecma, 88% experienced any grade CRS, with Grade 3/4 events occurring in 4% of patients. Two patients (1%) experienced a Grade 5 CRS event. Any grade neurotoxicity occurred in 15% of patients, with Grade 3/4 neurotoxicity occurring in 3% of patients, and no Grade 5 events reported.
In the EU, the EC delivers its final decision approximately two months following receipt of the CHMP opinion. The decision will be applicable to all EU member states and Iceland, Norway and Liechtenstein
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