Trial reportInternational journal of cancer2021
Randomized clinical trial of pembrolizumab vs chemotherapy for previously untreated Chinese patients with PD-L1-positive locally advanced or metastatic non-small-cell lung cancer: KEYNOTE-042 China Study.
Trial report in International journal of cancer, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 79 papers, 14 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.
A Randomized, Open Label, Phase III Study of Overall Survival Comparing Pembrolizumab (MK-3475) Versus Platinum Based Chemotherapy in Treatment Naïve Subjects With PD-L1 Positive Advanced or Metastatic Non-Small Cell Lung Cancer (Keynote 042)
A Randomized, Open Label, Phase III Study of Overall Survival Comparing Pembrolizumab (MK-3475) Versus Platinum Based Chemotherapy in Treatment Naïve Subjects With PD-L1 Positive Advanced or Metastatic Non-Small Cell Lung Cancer (Keynote 042)
Who cites it
79 citing papers in PubMed, 14 syntheses or guidelines pooled it, 95 citations in OpenAlex.
- Advancements in Immunotherapy for Lung Cancer: A Meta-Analysis of Clinical Trial Outcomes.The clinical respiratory journal · 2026Pooled it
- Efficacy and safety of immunotherapy in driver mutation-negative advanced non-small cell lung cancer: A systematic review and meta-analysis.The Indian journal of medical research · 2026Pooled it
- Treatments for metastatic non-small cell lung cancer: a pathways pilot with systematic review, evidence synthesis and economic model.Health technology assessment (Winchester, England) · 2026Pooled it
- Bibliometric insight into neoadjuvant immunotherapy in non-small cell lung cancer: trends, collaborations, and future avenues.Frontiers in immunology · 2025Pooled it
- Risk and safety profile in checkpoint inhibitors on non-small-cel lung cancer: A systematic review.Human vaccines & immunotherapeutics · 2024Pooled it
- Efficacy of neoadjuvant PD-1/PD-L1 inhibitor in resectable NSCLC: a meta-analysis based on randomized controlled trials.BMC cancer · 2024Pooled it
- Differences in the risk of immune-related pneumonitis between PD-1 and PD-L1 inhibitors: a meta-analysis according to the new mirror-principle and PRISMA guidelines.Cancer immunology, immunotherapy : CII · 2024Pooled it
- East Asian patients who received immunotherapy-based therapy associated with improved survival benefit in advanced non-small cell lung cancer: An updated meta-analysis.Cancer medicine · 2024Pooled it
- Effectiveness and safety of pembrolizumab for patients with advanced non-small cell lung cancer in real-world studies and randomized controlled trials: A systematic review and meta-analysis.Frontiers in oncology · 2023Pooled it
- Sex difference in response to non-small cell lung cancer immunotherapy: an updated meta-analysis.Annals of medicine · 2022Pooled it
- Effect of histology on the efficacy of immune checkpoint inhibitors in advanced non-small cell lung cancer: A systematic review and meta-analysis.Frontiers in oncology · 2022Pooled it
- The influence of baseline characteristics on the efficacy of immune checkpoint inhibitors for advanced lung cancer: A systematic review and meta-analysis.Frontiers in pharmacology · 2022Pooled it
- Safety and Efficacy of Neoadjuvant Immune Checkpoint Inhibitor Therapy in Patients with Resectable Non-small-Cell Lung Cancer: A Systematic Review.Targeted oncology · 2021Pooled it
- Association Between Efficacy of Immune Checkpoint Inhibitors and Sex: An Updated Meta-Analysis on 21 Trials and 12,675 Non-Small Cell Lung Cancer Patients.Frontiers in oncology · 2021Pooled it
- Five-year outcomes of pembrolizumab versus chemotherapy in Chinese patients with non-small-cell lung cancer and programmed cell death ligand 1 tumor proportion score ≥1%: KEYNOTE-042 China study.International journal of cancer · 2026Trial
- First-line treatment with camrelizumab plus famitinib in advanced or metastatic NSCLC patients with PD-L1 TPS ≥1%: results from a multicenter, open-label, phase 2 trial.Journal for immunotherapy of cancer · 2024Trial
- Preliminary clinical study of personalized neoantigen vaccine therapy for microsatellite stability (MSS)-advanced colorectal cancer.Cancer immunology, immunotherapy : CII · 2023Trial
- Camrelizumab in different PD-L1 expression cohorts of pre-treated advanced or metastatic non-small cell lung cancer: a phase II study.Cancer immunology, immunotherapy : CII · 2022Trial
- Randomized clinical trial of pembrolizumab vs chemotherapy for previously untreated Chinese patients with PD-L1-positive locally advanced or metastatic non-small-cell lung cancer: KEYNOTE-042 China Study.International journal of cancer · 2021Trial
- Long-Term Survival Heterogeneity Across PD-L1-Defined Subgroups in Pembrolizumab-Treated Non-Small-Cell Lung Cancer: A Model-Based Analysis.Pharmaceutics · 2026Article
19 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
17 authors at 12 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In the global KEYNOTE-042 study (Clinicaltrials.gov, NCT02220894), pembrolizumab significantly improved overall survival (OS) vs chemotherapy in patients with previously untreated programmed death ligand 1 (PD-L1)-positive locally advanced/metastatic non-small-cell lung cancer (NSCLC) without EGFR/ALK alterations. We present results from patients in KEYNOTE-042 enrolled from China in the global or extension study (NCT03850444; protocol identical to global study). Patients were randomized 1:1 (stratified by ECOG performance status 0 vs 1, squamous vs nonsquamous histology and PD-L1 tumor proportion score [TPS] ≥50% vs 1%-49%) to 35 cycles of pembrolizumab 200 mg every 3 weeks (Q3W) or investigator's choice of 4 to 6 cycles of carboplatin plus paclitaxel or pemetrexed Q3W with optional pemetrexed maintenance for nonsquamous tumors. Primary endpoints were OS in patients with PD-L1 TPS ≥50%, ≥20% or ≥1%. Two hundred sixty-two patients (pembrolizumab, n = 128; chemotherapy, n = 134) were enrolled from China. At data cutoff (February 21, 2020; median follow-up, 33.0 [range, 25.6-41.9] months), pembrolizumab was shown to improve OS vs chemotherapy in patients with PD-L1 TPS ≥50% (hazard ratio [95% CI], 0.63 [0.43-0.94]), TPS ≥20% (0.66 [0.47-0.92]) and TPS ≥1% (0.67 [0.50-0.89]). Grade 3 to 5 treatment-related adverse events occurred less frequently with pembrolizumab vs chemotherapy (19.5% vs 68.8%). In 22 patients who completed 35 cycles of pembrolizumab, objective response rate was 77.3% and median duration of response was 27.6 months. Consistent with the global KEYNOTE-042 study, pembrolizumab improved OS vs chemotherapy in this study of Chinese patients with locally advanced/metastatic NSCLC and PD-L1 TPS ≥1%, supporting first-line pembrolizumab monotherapy for PD-L1-positive advanced/metastatic NSCLC in China.
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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.