Efficacy and safety of chimeric antigen receptor T cells targeting BCMA and GPRC5D in relapsed or refractory multiple myeloma
2024

Comparing CAR-T Cell Therapies for Multiple Myeloma

Sample size: 636 publication Evidence: low

Author Information

Author(s): Yang Xu, Wang Feiqing, Yuan Xiaoshuang, Yang Bo, Chen Juan, Cheng Jinyang, Liu Guangyang, Tang Dongxin, Xu Xiao, Wang Sanbin, He Zhixu, Liu Yang, Li Yanju

Primary Institution: Clinical Medical Research Center, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, China

Hypothesis

Is GPRC5D CAR-T therapy more effective than BCMA CAR-T therapy in treating relapsed or refractory multiple myeloma?

Conclusion

GPRC5D CAR-T therapy shows enhanced effectiveness compared to BCMA CAR-T therapy in treating patients with relapsed or refractory multiple myeloma.

Supporting Evidence

  • GPRC5D CAR-T had a higher overall response rate (ORR) of 89.8% compared to 76.3% for BCMA CAR-T.
  • GPRC5D CAR-T showed a complete response rate (CRR) of 50.5%, while BCMA CAR-T had a CRR of 34.3%.
  • The relapse rate for GPRC5D CAR-T was significantly lower at 26.0% compared to 57.3% for BCMA CAR-T.
  • Both therapies demonstrated acceptable safety profiles with manageable adverse effects.

Takeaway

This study looked at two types of treatments for a blood cancer called multiple myeloma. One treatment worked better than the other, helping more people feel better.

Methodology

A systematic review and meta-analysis of clinical trials comparing BCMA and GPRC5D CAR-T therapies in patients with relapsed or refractory multiple myeloma.

Potential Biases

All studies used a single-arm design, which may introduce bias.

Limitations

Most included studies were early-phase, single-arm trials with varying follow-up durations.

Participant Demographics

Patients with relapsed or refractory multiple myeloma, regardless of age or sex.

Statistical Information

P-Value

p<0.01

Confidence Interval

95% CI, 72.0%–86.3%

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.3389/fimmu.2024.1466443

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