European Hematology Association: Overall Survival Benefit Established With Daratumumab Plus Lenalidomide and Dexamethasone (D-Rd) in Elderly Patients with Transplant-ineligible Newly Diagnosed Multipl

June 12, 2021 3:00 AM EDT

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THE HAGUE, Netherlands, June 12, 2021 /PRNewswire/ -- The phase 3 MAIA study evaluated D-Rd versus Rd in 737 patients who were ineligible for high-dose chemotherapy and autologous stem cell transplantation. The primary analysis of MAIA demonstrated a 44% reduction in the risk of disease progression or death after treatment with D-Rd compared with Rd alone. At a median follow-up of almost 5 years (56.2 months), we now report the pre-specified interim overall survival analysis of MAIA.

The addition of daratumumab to Rd treatment significantly reduced the risk of death by 32% (hazard ratio, 0.68; 95% confidence interval [CI], 0.53-0.86; P=0.0013) with an estimated 5-year overall survival rate of 66.3% in the D-Rd group compared with 53.1% in the Rd alone group. These results are despite 46% of patients who received subsequent therapy in the Rd arm receiving daratumumab. Similarly, the significant progression-free survival benefit of D-Rd versus Rd that was identified in the primary analysis was maintained, with a 47% reduction in the risk of disease progression or death (HR, 0.53; 95% CI, 0.43-0.66; P15%) grade 3/4 treatment-emergent adverse events for D-Rd and Rd were neutropenia (54% vs 37%), pneumonia (19% vs 11%), anemia (17% vs 22%), and lymphopenia (16% and 11%). In conclusion, the clinical benefit from the primary analysis of the MAIA study was maintained through 5 years of follow-up and the benefit of upfront D-Rd given to progression was confirmed with a significant OS improvement, further supporting the use of frontline daratumumab as a new standard of care for patients with transplant-ineligible NDMM.

The results of this study will be presented by Prof. Thierry Facon on Saturday, June 12.

Presenter: Professor Thierry Facon

Affiliation: University of Lille, CHU Lille, Service des Maladies du Sang, Lille, France

Abstract: #LB1901 OVERALL SURVIVAL RESULTS WITH DARATUMUMAB, LENALIDOMIDE, AND DEXAMETHASONE VERSUS LENALIDOMIDE AND DEXAMETHASONE IN TRANSPLANT-INELIGIBLE NEWLY DIAGNOSED MULTIPLE MYELOMA: PHASE 3 MAIA STUDY

About the EHA Annual Congress: Every year in June, EHA organizes its Annual Congress in a major European city. This year due to the persisting COVID19 pandemic, EHA organized a Virtual Congress for the second time. The Congress is aimed at health professionals working in or interested in the field of hematology.

Website: www.ehaweb.org

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SOURCE European Hematology Association (EHA)



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