Evidence map›Paper›PMID 40493058›Full record

SynthesisEuropean journal of clinical pharmacology2025

The efficacy and safety of PD-1/PD-L1 inhibitors plus chemotherapy versus chemotherapy alone in advanced or metastatic gastric or gastroesophageal junction cancer: a meta-analysis of randomized controlled trials.

Hu Piao, Li Wenping, Li Chengde, Li Haoming, Zhang Xiaohan, Liu Yingdi, Zhang Xuezheng, Mao Shumei

Abstract readMeta-AnalysisReview
PubMed Publisher
In one paragraph

Synthesis in European journal of clinical pharmacology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Hu PiaoPharmacy College, Shandong Second Medical University, Weifang, China.ORCID https://orcid.org/0009-0004-7770-031X
Li WenpingPharmacy College, Shandong Second Medical University, Weifang, China.
Li ChengdeDepartment of Clinical Pharmacy, Shandong Second Medical University, Weifang, China.
Li HaomingClinical College of Shandong Second Medical University, Weifang, China.
Zhang XiaohanPharmacy College, Shandong Second Medical University, Weifang, China.
Liu YingdiPharmacy College, Shandong Second Medical University, Weifang, China.
Zhang XuezhengDepartment of Health Care Medicine, Weifang Hospital of Traditional Chinese Medicine, Weifang, China. 2317048973@qq.com.
Mao ShumeiDepartment of Pharmacology, Shandong Second Medical University, Weifang, China. maoshumei@126.com.ORCID https://orcid.org/0000-0002-6641-9539

Funding

the Shandong Provincial Natural Science Foundation ZR2020MH381the Weifang Municipal Science and Technology Bureau 2024GX005, 2021GX062
6 · The paper itself

Abstract

backgroundThe combination chemotherapy of alpha-PD-1/PD-L1 has become the standard treatment option for some cancer patients. However, studies have shown that not all patients benefit from improved survival rates, especially the use of PD-1/PD-L1 inhibitors in combination with chemotherapy for progression-free survival (PFS) in patients with gastric or gastroesophageal cancer (GC/GEJC) remains highly controversial. To address this issue, we conducted a meta-analysis of randomized controlled trials (RCTs) aimed at comparing the efficacy of PD-1/PD-L1 inhibitors combined with chemotherapy versus chemotherapy in GC/GEJC patients.

methodBy searching relevant databases, RCTs published up to November 2024 were collected, and the hazard ratios (HR) and 95% confidence intervals (CI) of overall survival (OS) and PFS were calculated. Meanwhile, the odds ratios (OR) and 95% CI of treatment-related adverse events (TRAEs) were evaluated.

resultA total of 6842 patients were included in seven trials. In the summary analysis of OS, compared with the chemotherapy group, the PD-1/PD-L1 inhibitor combined with the chemotherapy group showed significant improvement in OS (HR = 0.80; 95% CI = 0.76-0.85; p < 0.0001) and PFS (HR = 0.86; 95% CI = 0.71-0.81; p < 0.0001). Additionally, there were significant differences in the incidence of TRAEs (OR = 1.59; 95% CI = 1.21-2.02; p = 0.0001) and grade 3-4 TRAEs (OR = 1.43; 95% CI = 1.30-1.58; p < 0.0001).

conclusionWhen compared to chemotherapy, the combination of PD-1/PD-L1 inhibitors with chemotherapy improves survival but with higher toxicity risks, requiring careful benefit-risk evaluation in clinical practice.

Indexed as

Antineoplastic Combined Chemotherapy ProtocolsEsophageal NeoplasmsImmune Checkpoint InhibitorsStomach NeoplasmsB7-H1 AntigenEsophagogastric JunctionHumansProgrammed Cell Death 1 ReceptorProgression-Free SurvivalRandomized Controlled Trials as TopicB7-H1 AntigenCD274 protein, humanImmune Checkpoint InhibitorsPDCD1 protein, humanProgrammed Cell Death 1 ReceptorChemotherapyGastricGastroesophagealPD-1/PD-L1 inhibitorsRCT

Identifiers

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.