SynthesisJournal of cancer research and clinical oncology2021
Efficacy and safety of neoadjuvant immune checkpoint inhibitors in early-stage triple-negative breast cancer: a systematic review and meta-analysis.
Synthesis in Journal of cancer research and clinical oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 9 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
27 citing papers in PubMed, 9 syntheses or guidelines pooled it, 35 citations in OpenAlex.
- Treatment-Related and Immune-Related Adverse Events Associated With Immune Checkpoint Inhibitor-Based Combination Therapies for Breast Cancer: A Systematic Review and Meta-Analysis.Thoracic cancer · 2026Pooled it
- Efficacy and safety of immune checkpoint inhibitors plus chemotherapy in early-stage triple-negative breast cancer: a systematic review and meta-analysis.Frontiers in oncology · 2026Pooled it
- Identifying subgroups deriving the most benefit from PD-1 checkpoint inhibition plus chemotherapy in advanced metastatic triple-negative breast cancer: a systematic review and meta-analysis.World journal of surgical oncology · 2024Pooled it
- Efficacy and safety of a combination treatment of immune checkpoint inhibitors in metastatic breast cancer: a systematic review and meta-analysis.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2024Pooled it
- Pooled it
- Comparative efficacy and safety of first-line neoadjuvant treatments in triple-negative breast cancer: systematic review and network meta-analysis.Clinical and experimental medicine · 2023Pooled it
- PD-L1 expression as biomarker of efficacy of PD-1/PD-L1 checkpoint inhibitors in metastatic triple negative breast cancer: A systematic review and meta-analysis.Frontiers in immunology · 2023Pooled it
- Combined atezolizumab and nab-paclitaxel in the treatment of triple negative breast cancer: a meta-analysis on their efficacy and safety.BMC cancer · 2022Pooled it
- Expanding the PD-L1 Paradigm: A Comprehensive Systematic Review and Meta-Analysis of Scoring Systems and Additional Biomarkers Influencing Immune Checkpoint Inhibitor Outcomes in Breast Cancer.Cancer control : journal of the Moffitt Cancer CenterPooled it
- Harnessing immunity against breast cancer: from checkpoints to cell therapies.Journal of translational medicine · 2026Review
- Identification of Early Symptoms Associated with Subsequent Immune-related Adverse Events in the I-SPY clinical trial.Research square · 2026Article
- Advancing Breast Cancer Treatment: The Role of Immunotherapy and Cancer Vaccines in Overcoming Therapeutic Challenges.Vaccines · 2025Review
- Targeted Therapies and Drug Resistance in Advanced Breast Cancer, Alternative Strategies and the Way beyond.Cancers · 2024Review
- The immunoregulatory role of gut microbiota in the incidence, progression, and therapy of breast cancer.Frontiers in cellular and infection microbiology · 2024Review
- The tremendous clinical potential of the microbiota in the treatment of breast cancer: the next frontier.Journal of cancer research and clinical oncology · 2023Review
- Adverse Events of PD-1 or PD-L1 Inhibitors in Triple-Negative Breast Cancer: A Systematic Review and Meta-Analysis.Life (Basel, Switzerland) · 2022Review
- Immune Checkpoint Inhibitors and Other Immune Therapies in Breast Cancer: A New Paradigm for Prolonged Adjuvant Immunotherapy.Biomedicines · 2022Review
- In-Silico Drug Toxicity and Interaction Prediction for Plant Complexes Based on Virtual Screening and Text Mining.International journal of molecular sciences · 2022Article
- Rationale and Clinical Research Progress on PD-1/PD-L1-Based Immunotherapy for Metastatic Triple-Negative Breast Cancer.International journal of molecular sciences · 2022Review
- Research progress on immunotherapy in triple‑negative breast cancer (Review).International journal of oncology · 2022Review
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 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThere is uncertainty regarding the role of adding immune checkpoint inhibitors (ICIs) to neoadjuvant chemotherapy (NACT) in early-stage triple-negative breast cancer (TNBC).
methodsWe identified randomized controlled trials (RCTs) comparing ICIs combined with NACT to NACT in early-stage TNBC. Efficacy outcomes included pathological complete response (pCR) and event-free survival (EFS). Toxicity data included any grade 3/4 adverse events (AEs), serious AEs, AEs leading to death, common and meaningful AEs associated with chemotherapy and immune-related AEs. Odds ratio (ORs), hazard ratios (HR) and their respective 95% confidence intervals (CI) for efficacy and toxicity were extracted and pooled in a meta-analysis. Differences in the odds for pCR between programmed death ligand 1 (PD-L1) status and between PD-L1 and PD-1 inhibitors were also assessed.
resultsFive RCTs comprising 2,075 patients were analyzed. Compared to NACT alone, combination of ICIs and NACT significantly improved pCR (OR 1.75, 95% CI 1.25-2.47, p = 0.001) and EFS (HR 0.66, 95% CI 0.48-0.91, p = 0.01). Magnitude of effect on pCR was similar between PD-L1-positive and PD-L1-negative tumors (p for the subgroup difference = 0.80) and between PD-L1 and PD-1 inhibitors (p = 0.27). The combination treatment resulted in higher odds of any grade 3/4 AEs (OR 1.31, p = 0.02) and serious AEs (OR 1.84, p = 0.006), with no statistically significant difference in AEs leading to death (OR 1.67, p = 0.51). Higher magnitude of toxicity was observed for immune-related AEs.
conclusionCombination of ICIs and NACT were associated with improved outcome in early-stage TNBC while increasing toxicity significantly. Longer follow-up is desired to better understand the risk and benefit ratio of this combination.
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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.