Advances in CAR-T Cell Therapy in Relapsed/Refractory Multiple Myeloma: A Systematic Review and Meta-Analysis of Clinical Trials in the Last Two Years
Author Type(s)
Faculty, Resident/Fellow
Document Type
Abstract
Publication Date
9-2023
DOI
10.1016/S2152-2650(23)01427-1
Journal Title
Clinical Lymphoma Myeloma & Leukemia
Department
Medicine
Abstract
Background
T-cells are engineered to express chimeric antigen receptors (CAR) to target cancer-associated antigens. In this systematic review and meta-analysis, we will assess the efficacy of CAR-T cell therapies in relapsed/refractory multiple myeloma (RRMM) tested in the last 2 years.
Methods
A literature search was performed on PubMed, Embase, and clinicaltrials.gov with the keywords “multiple myeloma” and “CAR-T cell therapy” from 1/1/2021 to 2/31/2023. We screened 1,818 articles and included the results of 15 clinical trials (N=660). We used R software to conduct this meta-analysis.
Results
Among 660 patients in 15 clinical trials, 573 patients were treated with autologous anti-B-cell maturation antigen (anti-BCMA), 21 patients were treated with allogenic anti-BCMA, 25 patients were treated with anti-GPRC5D, and 41 patients were treated with dual target CAR-T cell agents. In 10 clinical trials (N=573) on anti-BCMA CAR T-cell therapy, pooled overall response (ORR), pooled complete response (CR), and pooled negative minimal residual disease (-MRD) were 90% (CI=80%-95%, I2=83%), 47% (CI=36%-58%, I2=84%), and 37% (CI=26%-50%, I2=85%), respectively. In two clinical trials (N=25) on anti-GPRC5D CAR T-cell therapy in patients pretreated with anti-BCMA, ORR, CR, -MRD, were 80% (CI=43%-96%, I2=37%), 36% (CI=20%-56%, I2=0), and 28% (CI=14%-49%, I2=0), respectively. In a clinical trial (N=21) on anti-BCMA allogenic CAR T-cell therapy, ORR, CR, -MRD were 71% (CI=48%-89%, I2=0%), 24% (CI=20%-47%, I2=0), and 24% (CI=8%-47%, I2=0), respectively. In two clinical trials (N=41) on dual-target CAR T-cell therapy, ORR, CR, -MRD was 84% (CI=69%-93%, I2=4%), 75% (CI=55%-89%, I2=0), and 75% (CI=55%-89%, I2=0), respectively.
Conclusion
Anti-BCMA, anti-GPRC5D, allogenic anti-BCMA, and dual-target CAR T-cell were effective in heavily pretreated MM patients. Anti-GPRC5D showed a response in BCMA-pretreated patients. Response rates were similar among anti-BCMA, anti-GPRC5D, allogenic anti-BCMA, and dual-target CAR T-cell therapies. More randomized trials are needed to confirm these results.
Recommended Citation
Aiman, W., Ali, M. A., Zubair, H., Butt, S. K., Anwar, M. Y., Hamza, M., Nanjundaiah, N., Chemarthi, V. S., Shaaban, H., Guron, G., & Anwer, F. (2023). Advances in CAR-T Cell Therapy in Relapsed/Refractory Multiple Myeloma: A Systematic Review and Meta-Analysis of Clinical Trials in the Last Two Years. Clinical Lymphoma Myeloma & Leukemia, 23 (Suppl. 1), S485-S486. https://doi.org/10.1016/S2152-2650(23)01427-1