SynthesisCancer reports (Hoboken, N.J.)2023
PD-1/PD-L1 based immunochemotherapy versus chemotherapy alone for advanced esophageal squamous cell carcinoma: A meta-analysis focus on PD-L1 expression level.
Synthesis in Cancer reports (Hoboken, N.J.), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.
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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.
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.
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Who cites it
4 citing papers in PubMed, 1 synthesis or guideline pooled it, 3 citations in OpenAlex.
- PD-1/PD-L1 based immunochemotherapy versus chemotherapy alone for advanced esophageal squamous cell carcinoma: A meta-analysis focus on PD-L1 expression level.Cancer reports (Hoboken, N.J.) · 2023Pooled it
- Targeted immunotherapies and nanomedicines for ovarian cancer: the way forward.NPJ precision oncology · 2026Review
- Prognostic value and immune landscapes of cuproptosis-related lncRNAs in esophageal squamous cell carcinoma.Aging · 2023Article
- Unraveling immunotherapy's role in propelling cancer outcomes.Cancer reports (Hoboken, N.J.) · 2023Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundImmunochemotherapy has become a new treatment for advanced esophageal squamous cell carcinoma (ESCC).
aimsWe aimed to study the clinical efficacy and toxicity of immunochemotherapy based on PD-1/PD-L1 compared with chemotherapy alone in the treatment of advanced ESCC, focusing on analyzing the influence of PD-L1 expression level. METHODS AND
resultsFive randomized controlled trials comparing PD-1/PD-L1 based immunochemotherapy with chemotherapy alone for advanced ESCC were included. We extracted efficacy data (objective response rate [ORR], disease control rate [DCR], overall survival [OS] rate, progression-free survival [PFS] rate) and safety data (treatment-related adverse events, treatment-related mortality) and performed meta-analyses. Compared with chemotherapy alone, the ORR and DCR of immunochemotherapy increased by 2.05 times and 1.54 times, respectively. Overall, patients receiving immunochemotherapy had a significant long-term survival advantage (OS: hazard ratio [HR] = 0.68, 95% confidence intervals [CI] 0.61-0.75; PFS: HR = 0.62, 95% CI 0.55, 0.70, respectively). Even with PD-L1 tumor proportion score <1%, immunochemotherapy also showed a significant survival advantage (OS: HR = 0.65, 95% CI 0.46-0.93; PFS: HR = 0.56, 95% CI 0.46-0.69, respectively). However, for PD-L1 combined positive score (CPS) < 1, the survival advantage of immunochemotherapy was not significant (OS: HR = 0.89, 95% CI 0.42-1.90; PFS: HR = 0.71, 95% CI 0.47-1.08, respectively). The toxicity of immunochemotherapy was higher than that of chemotherapy alone, but there was no statistical difference in treatment-related mortality (odds ratio = 1.11, 95% CI 0.67-1.83).
conclusionIn this study, treatment-related mortality was similar between immunochemotherapy and chemotherapy. PD-1/PD-L1 based immunochemotherapy significantly could improve survival outcomes in patients with advanced ESCC. For patients with CPS <1, the survival advantage of immunochemotherapy was not significant compared with chemotherapy.
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