SynthesisBMC gastroenterology2022
Efficacy and safety of anti-PD-1/PD-L1 therapy in the treatment of advanced colorectal cancer: a meta-analysis.
Synthesis in BMC gastroenterology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 4 of them syntheses that pooled 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.
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.
Who cites it
34 citing papers in PubMed, 4 syntheses or guidelines pooled it, 44 citations in OpenAlex.
- Neoadjuvant immunotherapy for DNA mismatch repair proficient/microsatellite stable non-metastatic rectal cancer: a systematic review and meta-analysis.Frontiers in immunology · 2025Pooled it
- Efficacy and safety of PD-1 and PD-L1 inhibitors in advanced colorectal cancer: a meta-analysis of randomized controlled trials.BMC gastroenterology · 2024Pooled it
- Efficacy and safety of PD-1/L1 inhibitors as first-line therapy for metastatic colorectal cancer: a meta-analysis.Frontiers in immunology · 2024Pooled it
- Efficacy and safety of PD-1/PD-L1 and CTLA-4 immune checkpoint inhibitors in the treatment of advanced colorectal cancer: a systematic review and meta-analysis.Frontiers in immunology · 2024Pooled it
- First-line Nivolumab plus FOLFOXIRI/Bevacizumab in advanced RAS/BRAF-mutated colorectal cancer: efficacy, safety and biomarker discovery from the phase II NIVACOR trial.Nature communications · 2026Trial
- Pucotenlimab in patients with advanced mismatch repair-deficient or microsatellite instability-high solid tumors: A multicenter phase 2 study.Cell reports. Medicine · 2023Trial
- Lactate metabolism regulation enhances cuproptosis to activate antitumor immunity: Synergistic therapy of hyaluronic acid nanomicelles delivering lactate oxidase/copper-doped carbon dots combined with α-PD-L1 inhibits distant tumors.Materials today. Bio · 2026Article
- Review
- A novel lactylation-related gene signature deciphers the immunosuppressive microenvironment and stratifies precision therapy in colorectal cancer.Discover oncology · 2026Article
- Orosomucoid 2 promotes colorectal cancer liver metastasis by suppressing natural killer cell-mediated antitumor immunity by remodeling the serine and one-carbon metabolism pathway.Molecular cancer · 2026Article
- Distinct and cooperative roles of host and tumor Osteopontin in colorectal cancer liver metastasis.bioRxiv : the preprint server for biology · 2026Article
- Article
- Comprehensive Review of Immunotherapy in Colorectal Cancer: From Mechanisms to Nursing Interventions.ImmunoTargets and therapy · 2026Review
- Traditional Chinese medicine as a potential barrier-oriented sensitization strategy for immune checkpoint blockade in microsatellite-stable colorectal cancer: from resistance mechanisms to translational validation.Frontiers in immunology · 2026Review
- Dysfunctional mismatch repair in patients with early triple-negative breast cancer.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2025Article
- Uncovering regulatory B-cell features associated with regulatory T-cell expansion and global T-cell exhaustion in Waldenström macroglobulinemiaHemaSphere · 2025Article
- Emerging Concepts in Immuno-Oncology: Insights from Natural Language Processing-Driven Co-Occurrence Analysis.ACS omega · 2025Review
- Associations of plasma protein levels with risk of colorectal cancer: a proteome-wide Mendelian randomization study.Clinical proteomics · 2025Article
- Article
- Extracellular Vesicle-Based Strategies for Tumor Immunotherapy.Pharmaceutics · 2025Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundImmune checkpoint inhibitors have shown promise in microsatellite instability-high/mismatch repair deficient (MSI-H/dMMR) advanced colorectal cancer (CRC) immunotherapy, and many clinical trials have been conducted.
objectiveTo evaluate the efficacy and safety of PD-1/PD-L1 inhibitors in advanced CRC.
methodPubMed, Web of Science, Embase, and The Cochrane Library were searched for relevant studies up to September 2021. A retrospective cross-sectional data analysis was performed and Stata 16 software was used for analyses.
resultsSixteen studies including 1503 patients were analyzed. The objective response rate (ORR) of anti-PD-1/PD-L1 was 23% (95% CI 0.14, 0.31); the overall 1-year survival rate (OSR) was 57% (95% CI 0.42, 0.73). The ORR of MSI-H/dMMR advanced CRC was 37% (95% CI 0.25, 0.48) and that of microsatellite stable/mismatch repair proficient (MSS/pMMR) disease was 11% (95% CI 0.06, 0.16). The ORR was 42% in the BRAF mutant subgroup and 19% in the RAS mutant group. The ORR was 14% in the PD-L1 ( +) subgroup and 32% in the PD-L1(-) subgroup. The rate of adverse effects was 85% (95% CI 0.80, 0.91).
conclusionAnti-PD-1/PD-L1 therapy in MSI-H/dMMR advanced CRC was associated with improved survival. Anti PD-1/PD-L1 combined with antiangiogenic drugs, targeted agents, or chemotherapy might be effective in MSS mCRC. Immunotherapy was effective for the BRAF mutant and KRAS/NRAS(RAS) mutant CRC. Low expression of PD-L1 was a potential predictive marker for positive response and outcome. The high incidence of adverse events at 85% was worthy of further investigation. Further analysis with a higher number of high-quality studies is needed to verify the conclusions.
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Registered trials
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.