Trial reportCancer2015
Randomized phase 2 trial of erlotinib in combination with high-dose celecoxib or placebo in patients with advanced non-small cell lung cancer.
Trial report in Cancer, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 6 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
23 citing papers in PubMed, 6 syntheses or guidelines pooled it, 41 citations in OpenAlex.
- Next-generation sequencing for guiding matched targeted therapies in people with relapsed or metastatic cancer.The Cochrane database of systematic reviews · 2025Pooled it
- Cardiovascular/anti-inflammatory drugs repurposed for treating or preventing cancer: A systematic review and meta-analysis of randomized trials.Cancer medicine · 2024Pooled it
- The Efficacy and Safety of Celecoxib in Addition to Standard Cancer Therapy: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.Current oncology (Toronto, Ont.) · 2022Pooled it
- Eye, hepatobiliary, and renal disorders of erlotinib in patients with non-small-cell lung cancer: A meta-analysis.PloS one · 2020Pooled it
- Systematic review and meta-analysis of the benefit of celecoxib in treating advanced non-small-cell lung cancer.Drug design, development and therapy · 2018Pooled it
- Pooled it
- Multi-Target Antitumor Effects of Natural Products and Approved Drug Repurposing in Non-Small Cell Lung Cancer: Advances in Mechanisms, Combination Regimens, Delivery System Optimization, and Clinical Challenges.International journal of molecular sciences · 2026Review
- COX 2-inhibitors; a thorough and updated survey into combinational therapies in cancers.Medical oncology (Northwood, London, England) · 2024Review
- Association of COX-inhibitors with cancer patients' survival under chemotherapy and radiotherapy regimens: a real-world data retrospective cohort analysis.Frontiers in oncology · 2024Article
- Review
- Potentiating Therapeutic Effects of Epidermal Growth Factor Receptor Inhibition in Triple-Negative Breast Cancer.Pharmaceuticals (Basel, Switzerland) · 2021Review
- Tumor necrosis factor in lung cancer: Complex roles in biology and resistance to treatment.Neoplasia (New York, N.Y.) · 2021Review
- miR-708-5p enhances erlotinib/paclitaxel efficacy and overcomes chemoresistance in lung cancer cells.Oncotarget · 2020Article
- Novel combination of celecoxib and metformin improves the antitumor effect by inhibiting the growth of Hepatocellular Carcinoma.Journal of Cancer · 2020Article
- Celecoxib Inhibits Hepatocellular Carcinoma Cell Growth and Migration by Targeting PNO1.Medical science monitor : international medical journal of experimental and clinical research · 2019Article
- Pooled analysis of the clinical benefit of cyclooxygenase-2 inhibitors combined with chemotherapy in advanced non-small cell lung cancer.Translational cancer research · 2019Article
- Prostaglandin E-Major Urinary Metabolite (PGE-MUM) as a Tumor Marker for Lung Adenocarcinoma.Cancers · 2019Article
- Efficacy of erlotinib and celecoxib for patients with advanced non-small cell lung cancer: A retrospective study.Medicine · 2019Article
- Meta-analysis of efficacy and adverse events of erlotinib-based targeted therapies for advanced/metastatic non-small cell lung cancer.Oncotarget · 2017Article
- Review
Corrections and comments
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Authors and funding
11 authors at 5 institutions in 1 country.
Funding
Abstract
backgroundCyclooxygenase 2 (COX-2)-dependent signaling represents a potential mechanism of resistance to therapy with epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors. This is mediated in part through an EGFR-independent activation of mitogen-activated protein kinase (MAPK)/extracellular signal-regulated kinase (Erk) by prostaglandin E2 (PGE2). PGE2 promotes downregulation of E cadherin and epithelial to mesenchymal transition. The current study investigated EGFR and COX-2 inhibition in patients with non-small cell lung cancer (NSCLC) and elevated baseline urinary metabolite of PGE2 (PGEM).
methodsPatients with stage IIIB/IV (AJCC 6th edition) NSCLC who progressed after at least 1 line of therapy or refused standard chemotherapy were randomized to receive erlotinib and celecoxib versus erlotinib and placebo. The primary endpoint was progression-free survival (PFS) with 80% power to detect a 50% improvement with a 1-sided significance level of .2 in the intent-to-treat and elevated baseline PGEM populations. Secondary endpoints included response rate, overall survival, and evaluation of molecular markers to assess targeting COX-2-related pathways and evaluate EGFR tyrosine kinase inhibitor resistance.
resultsA total of 107 patients were enrolled with comparable baseline characteristics. Among the patients treated with celecoxib, those with wild-type EGFR were found to have an increased PFS (3.2 months vs 1.8 months; P = .03). PFS was numerically improved among patients in the intent-to-treat group who received erlotinib and celecoxib compared with those treated with erlotinib and placebo (5.4 months vs 3.5 months; P = .33) and was increased in patients in the erlotinib and celecoxib arm with elevated baseline PGEM (5.4 months vs 2.2 months; P = .15). Adverse events were similar in both treatment arms.
conclusionsThe combination of erlotinib and celecoxib did not appear to improve outcomes in an unselected population, but selection by elevated baseline PGEM led to an increase in PFS with this combination. Patients with EGFR wild-type status may benefit from the combination of erlotinib and celecoxib.
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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.