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Articles

PD-1/PD-L1 Inhibitors Monotherapy for the Treatment of Endometrial Cancer: Meta-Analysis and Systematic Review

, , , , , , , , & ORCID Icon show all
Pages 293-309 | Received 28 Sep 2021, Accepted 24 Nov 2021, Published online: 09 Dec 2021
 

Abstract

Purpose

The efficacy of programmed cell death protein 1(PD-1)/Programmed cell death 1 ligand 1 (PD-L1) inhibitors for endometrial cancer remain controversial, and guidelines are inconsistent on which are preferred therapies for advanced disease, or who develop metastases and recurrence. Therefore, we aimed to estimate the efficacy and safety of PD-1/PD-L1 inhibitors in endometrial cancer on a more complete database by adding multiple randomized trials.

Methods

A systematic and comprehensive search was carried out in PD-1/PD-L1 inhibitors monotherapy.

Results

The ORR of PD-1/PDL-1 inhibitors was 29%, and subgroup analysis showed that the pooled ORR of the proficient mismatch repair (pMMR) group was 4% and which was 45% of the deficient mismatch repair (dMMR) group. The DCR of PD-1/PD-L1 inhibitors was 48%, through subgroup analysis, we found that the DCR of the pMMR group was 21% and which was 58% of the dMMR group. The proportion of patients occurring overall adverse events was 65% and grade three or higher adverse events was 14%. The proficient mismatch repair (pMMR) group and the deficient mismatch repair (dMMR) group showed different results.

Conclusion

PD-1/PD-L1 inhibitors had shown little success in the pMMR population and better efficacy in the dMMR population.

Disclosure

The authors have declared no conflict of interest.

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