ArticleFrontiers in immunology2021
Impact of Antibiotics and Proton Pump Inhibitors on Efficacy and Tolerance of Anti-PD-1 Immune Checkpoint Inhibitors.
Article in Frontiers in immunology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers, 8 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
58 citing papers in PubMed, 8 syntheses or guidelines pooled it, 78 citations in OpenAlex.
- The use of antibiotic, probiotic, and fecal microbiota transplantation in modulating immunotherapy efficacy and survival: a systematic review and meta-analysis of clinical outcomes.The oncologist · 2026Pooled it
- Society for Immunotherapy of Cancer (SITC) clinical practice guideline on immunotherapy for the treatment of renal cell carcinoma, version 3.0.Journal for immunotherapy of cancer · 2026Guideline
- Unraveling gut microbiome interferences in cancer immunotherapy: a meta-analysis of diverse drug effects.BMC cancer · 2025Pooled it
- Gut microbes and immunotherapy for non-small cell lung cancer: a systematic review.Frontiers in oncology · 2025Pooled it
- Acid suppressants reduce the therapeutic effect of immune checkpoint inhibitors and increase the risk of acute kidney injury: a meta-analysis.International journal of clinical oncology · 2023Pooled it
- Do proton pump inhibitors alter the response to immune checkpoint inhibitors in cancer patients? A meta-analysis.Frontiers in immunology · 2023Pooled it
- A systematic review and meta-analysis evaluating the impact of antibiotic use on the clinical outcomes of cancer patients treated with immune checkpoint inhibitors.Frontiers in oncology · 2023Pooled it
- The impact of antibiotic use on clinical features and survival outcomes of cancer patients treated with immune checkpoint inhibitors.Frontiers in immunology · 2022Pooled it
- Fecal microbiota transplantation for advanced non-small cell lung cancer with secondary PD-1 resistance efficacy prognostic factors and microbiome diversity analysis.Journal of translational medicine · 2026Trial
- Association of proton pump inhibitor use with survival and adverse effects outcomes in patients with multiple myeloma: pooled analysis of three clinical trials.Scientific reports · 2024Trial
- Impact of concomitant proton pump inhibitors in patients treated for advanced or metastatic NSCLC: a target trial emulation protocol.ESMO real world data and digital oncology · 2026Article
- Association of Probiotics with Effectiveness of Nivolumab or Pembrolizumab in Patients with Esophageal Cancer Taking Proton Pump Inhibitors: A Multicenter Retrospective Study.Journal of gastrointestinal cancer · 2026Observational
- Impact of proton pump inhibitors on immunotherapy is modulated by prior chemotherapy and linked to gut microbiome-immune cell signatures.Cancer immunology, immunotherapy : CII · 2026Article
- Microflora: a promising potential in the diagnosis and treatment of non-small cell lung cancer.International journal of clinical oncology · 2026Review
- The Impact of Concurrent Proton Pump Inhibitors on Nivolumab Response in Metastatic Non-Small Cell Lung Cancer: A Multicenter Real-Life Study.Medicina (Kaunas, Lithuania) · 2026Article
- Association between Antibiotic Exposure and the Risk of Checkpoint Inhibitor Pneumonitis in Lung Cancer Patients.Oncology · 2026Article
- Retrospective analysis of intestinal flora alterations in adults with acute gastrointestinal injury.Frontiers in cellular and infection microbiology · 2026Article
- Proton Pump Inhibitors Attenuate the Effectiveness of Nivolumab Monotherapy in Patients with Advanced Gastric Cancer: A Retrospective Study.Journal of gastrointestinal cancer · 2025Observational
- Impact of medications on the efficacy of immune checkpoint inhibitors in patients with recurrent or metastatic head and neck cancer.International journal of clinical oncology · 2025Article
- Effects of cannabinoids on immune checkpoint inhibitor response: CCTG pooled analysis of individual patient data.Immunotherapy · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: The use of antibiotics (ATB) and proton-pump inhibitors (PPI) alters the composition and diversity of the gut microbiota, which can influence the immune system, consequently interfering with response to anti-PD1 immune checkpoint inhibitors (ICI). We assessed the impact of ATB and/or PPI use on the efficacy and safety of ICI. Methods: Two hundred twelve patients treated with anti-PD1 ICI for non-small cell lung carcinoma, melanoma, upper airway & digestive tract carcinoma or renal cell carcinoma were retrospectively included. Patients having received ATB within 60 days before ICI initiation were included in the ATB+ group. Patients having received PPI within 30 days before ICI initiation were included in the PPI+ group. Four groups were thus considered: ATB-/PPI-, ATB+/PPI-, ATB-/PPI+, ATB+/PPI+. Response rate was assessed by RECIST v1.1. Overall survival (OS), progression-free survival (PFS) and adverse events, recorded using Common Terminology Criteria for Adverse Events Version 5, were compared using inverse probability of treatment weighting to account for selection bias. Results: PFS at 6 months was 56.7 %, 95%CI (49.6%; 63.2%) and 47.2 %, 95%CI (39.8%;54.1%) at 12 months. OS was 81.6%, 95%CI (75.6%; 86.2%) at 6 months, and 69.4%, 95%CI (61.9%;75.7%) at 12 months. Compared to ATB-/PPI- group, PFS was lower for the ATB+/PPI- group [Hazard ratio (HR) 1.90, 95%CI (1.41;2.57)] and the ATB-/PPI+ group [HR 1.51, 95%CI (1.11;2.05)], and lowest in the ATB+/PPI+ group [HR 3.65, 95%CI (2.75;4.84)]. For OS, the use of ATB alone or PPI alone or in combination was a risk factor for death, with each increasing HR values by a similar magnitude, and the combination of ATB and PPI did not increase risk further. AEs were observed in 78 cases (36.8%) with no significant impact of ATB or PPI use. Conclusions: This study reveals that ATB and/or PPI use can alter response to anti-PD1 ICI, and the prognosis of cancer patients. The microbiota mechanisms involved in the response to ICI should be investigated to optimize patient management.
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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.