Efficacy and safety of anti-PD-1/PD-L1 antibodies in patients with relapsed refractory diffuse large B-cell lymphoma: A meta-analysis

This article conducts a meta-analysis to evaluate the safety and efficacy of PD-1/PD-L1 inhibitors in patients with relapsed/refractory diffuse large B-cell lymphoma (R/R DLBCL). A total of 63 papers were initially retrieved, and eight clinical studies were collected. The estimated effect of ORR was...

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Main Authors: Zhang Jiawen, Xu Lei, Sun Caifeng, Huang Zonghua, Ma Ji, Wang Liang
Format: Article
Language:English
Published: De Gruyter 2025-08-01
Series:Open Life Sciences
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Online Access:https://doi.org/10.1515/biol-2025-1129
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author Zhang Jiawen
Xu Lei
Sun Caifeng
Huang Zonghua
Ma Ji
Wang Liang
author_facet Zhang Jiawen
Xu Lei
Sun Caifeng
Huang Zonghua
Ma Ji
Wang Liang
author_sort Zhang Jiawen
collection DOAJ
description This article conducts a meta-analysis to evaluate the safety and efficacy of PD-1/PD-L1 inhibitors in patients with relapsed/refractory diffuse large B-cell lymphoma (R/R DLBCL). A total of 63 papers were initially retrieved, and eight clinical studies were collected. The estimated effect of ORR was [OR = 0.40, 95% CI 0.29–0.51; p = 0.08], the estimated effect of complete response rate was [OR = 0.21, 95% CI 0.14–0.31; p < 0.001], while the estimated effect of 1-year progression-free survival was [OR = 0.33, 95% CI 0.22–0.47; p = 0.01]. The estimated effect of 1-year OS was [OR = 0.67, 95% CI 0.55–0.77; p = 0.05]. In addition, the estimated effect of grade 3 adverse events was [OR = 0.33, 95% CI 0.22–0.46; p = 0.01]. Overall, PD-1/PD-L1 inhibitors demonstrated suboptimal therapeutic efficacy in the selected trials for R/R DLBCL. However, combining PD-1/PD-L1 inhibitors with CAR-T showed potential for improved treatment outcomes. Additionally, PD-1/PD-L1 inhibitors were found to be safe and well-tolerated in patients with R/R DLBCL.
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institution Kabale University
issn 2391-5412
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publishDate 2025-08-01
publisher De Gruyter
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series Open Life Sciences
spelling doaj-art-d248010c29f04db186acb14f8e4ff6de2025-08-20T03:41:43ZengDe GruyterOpen Life Sciences2391-54122025-08-012012162110.1515/biol-2025-1129Efficacy and safety of anti-PD-1/PD-L1 antibodies in patients with relapsed refractory diffuse large B-cell lymphoma: A meta-analysisZhang Jiawen0Xu Lei1Sun Caifeng2Huang Zonghua3Ma Ji4Wang Liang5Clinical Medicine School, Shandong Second Medical University, No. 4948, Victory East Street, Weifang, Shandong, 261000, ChinaDepartment of Medical Imaging, Shengli Oilfield Central Hospital, No. 31, Jinan Road, Dongying District, Dongying, Shandong, 257034, ChinaDepartment of Hematology, Shengli Oilfield Central Hospital, No. 31, Jinan Road, Dongying District, Dongying, Shandong, 257034, ChinaDepartment of Hematology, Shengli Oilfield Central Hospital, No. 31, Jinan Road, Dongying District, Dongying, Shandong, 257034, ChinaDepartment of Hematology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong, Academy of Medical Sciences, No. 440, Jiyan Highway, Huaiyin District, Jinan, Shandong, 250117, ChinaDepartment of Hematology, Shengli Oilfield Central Hospital, No. 31, Jinan Road, Dongying District, Dongying, Shandong, 257034, ChinaThis article conducts a meta-analysis to evaluate the safety and efficacy of PD-1/PD-L1 inhibitors in patients with relapsed/refractory diffuse large B-cell lymphoma (R/R DLBCL). A total of 63 papers were initially retrieved, and eight clinical studies were collected. The estimated effect of ORR was [OR = 0.40, 95% CI 0.29–0.51; p = 0.08], the estimated effect of complete response rate was [OR = 0.21, 95% CI 0.14–0.31; p < 0.001], while the estimated effect of 1-year progression-free survival was [OR = 0.33, 95% CI 0.22–0.47; p = 0.01]. The estimated effect of 1-year OS was [OR = 0.67, 95% CI 0.55–0.77; p = 0.05]. In addition, the estimated effect of grade 3 adverse events was [OR = 0.33, 95% CI 0.22–0.46; p = 0.01]. Overall, PD-1/PD-L1 inhibitors demonstrated suboptimal therapeutic efficacy in the selected trials for R/R DLBCL. However, combining PD-1/PD-L1 inhibitors with CAR-T showed potential for improved treatment outcomes. Additionally, PD-1/PD-L1 inhibitors were found to be safe and well-tolerated in patients with R/R DLBCL.https://doi.org/10.1515/biol-2025-1129pd-1/pd-l1 blockadeimmune checkpoint moleculerelapsed/refractory diffuse large b-cell lymphomatreatmentmeta-analysis
spellingShingle Zhang Jiawen
Xu Lei
Sun Caifeng
Huang Zonghua
Ma Ji
Wang Liang
Efficacy and safety of anti-PD-1/PD-L1 antibodies in patients with relapsed refractory diffuse large B-cell lymphoma: A meta-analysis
Open Life Sciences
pd-1/pd-l1 blockade
immune checkpoint molecule
relapsed/refractory diffuse large b-cell lymphoma
treatment
meta-analysis
title Efficacy and safety of anti-PD-1/PD-L1 antibodies in patients with relapsed refractory diffuse large B-cell lymphoma: A meta-analysis
title_full Efficacy and safety of anti-PD-1/PD-L1 antibodies in patients with relapsed refractory diffuse large B-cell lymphoma: A meta-analysis
title_fullStr Efficacy and safety of anti-PD-1/PD-L1 antibodies in patients with relapsed refractory diffuse large B-cell lymphoma: A meta-analysis
title_full_unstemmed Efficacy and safety of anti-PD-1/PD-L1 antibodies in patients with relapsed refractory diffuse large B-cell lymphoma: A meta-analysis
title_short Efficacy and safety of anti-PD-1/PD-L1 antibodies in patients with relapsed refractory diffuse large B-cell lymphoma: A meta-analysis
title_sort efficacy and safety of anti pd 1 pd l1 antibodies in patients with relapsed refractory diffuse large b cell lymphoma a meta analysis
topic pd-1/pd-l1 blockade
immune checkpoint molecule
relapsed/refractory diffuse large b-cell lymphoma
treatment
meta-analysis
url https://doi.org/10.1515/biol-2025-1129
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