Improving Advanced-Line Multiple Myeloma Care: Insights and Real-World Challenges from the EMMY Study.

Managing multiple myeloma (MM) patients receiving advanced (four or more) lines of treatment is a complex challenge. Therefore, real-world data are essential to better understand and address the medical need of this challenging population. We used the EMMY cohort, a French longitudinal real-world study, to describe the characteristics and outcomes of 2127 MM patients receiving advanced-line treatments between 2017 and 2020. A wide variety of treatments were used without a predominant combination showing an evolution over time. Patients exhibited median time to next treatment and overall survival ranging from 7.8 months (95% CI: 6.7-7.8) and 19.4 months (95% CI: 17.4-22.5) in Line 4 (L4) to 4.8 months (95% CI: 3.5-6) and 12.6 months (95% CI: 8.7-16.6) in L8, respectively. The EMMY study provides valuable insights into the real-world application of advanced-line treatments, demonstrating rapid disease progression and poor outcomes in these patients before the novel anti-B-cell maturation antigen (BCMA) directed therapies. These findings highlight the critical need for novel therapies in this population.