Trial reportNeuro-oncology2010
Safety and efficacy of erlotinib in first-relapse glioblastoma: a phase II open-label study.
Trial report in Neuro-oncology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers, 3 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
72 citing papers in PubMed, 3 syntheses or guidelines pooled it, 130 citations in OpenAlex.
- Predictive value of EGFR amplification and EGFRvIII mutation in EGFR-targeted therapy for recurrent glioblastoma: a systematic review.CNS oncology · 2026Pooled it
- Receptor tyrosine kinase targeted therapies in glioblastoma: a systematic review.Frontiers in medicine · 2026Pooled it
- Objective response rate targets for recurrent glioblastoma clinical trials based on the historic association between objective response rate and median overall survival.Neuro-oncology · 2023Pooled it
- Pharmacokinetics and safety of erlotinib and its metabolite OSI-420 in infants and children with primary brain tumors.Cancer chemotherapy and pharmacology · 2019Trial
- Phase II trial of dacomitinib, a pan-human EGFR tyrosine kinase inhibitor, in recurrent glioblastoma patients with EGFR amplification.Neuro-oncology · 2017Trial
- A phase II study of bevacizumab and erlotinib after radiation and temozolomide in MGMT unmethylated GBM patients.Journal of neuro-oncology · 2016Trial
- Phase I/randomized phase II study of afatinib, an irreversible ErbB family blocker, with or without protracted temozolomide in adults with recurrent glioblastoma.Neuro-oncology · 2015Trial
- Phase I/II study of erlotinib and temsirolimus for patients with recurrent malignant gliomas: North American Brain Tumor Consortium trial 04-02.Neuro-oncology · 2014Trial
- Radiotherapy plus nimotuzumab or placebo in the treatment of high grade glioma patients: results from a randomized, double blind trial.BMC cancer · 2013Trial
- Erlotinib plus bevacizumab in EGFR-amplified metastatic solid tumors: results from the KOSMOS I, II study of molecular profiling-guided therapy in advanced cancers.International journal of clinical oncology · 2026Article
- Applications of transcranial focused ultrasound for primary brain tumors.Neuro-oncology advances · 2026Review
- Review
- Repurposing Osimertinib and Gedatolisib for Glioblastoma Treatment: Evidence of Synergistic Effects in an In Vitro Phenotypic Study.Pharmaceuticals (Basel, Switzerland) · 2024Article
- Opportunities and Challenges of Small Molecule Inhibitors in Glioblastoma Treatment: Lessons Learned from Clinical Trials.Cancers · 2024Review
- Glioblastoma Therapy: Past, Present and Future.International journal of molecular sciences · 2024Review
- From signalling pathways to targeted therapies: unravelling glioblastoma's secrets and harnessing two decades of progress.Signal transduction and targeted therapy · 2023Review
- Advances in Treatment of Isocitrate Dehydrogenase (IDH)-Wildtype Glioblastomas.Current neurology and neuroscience reports · 2023Review
- Article
- Tyrosine Kinase Inhibitors for Glioblastoma Multiforme: Challenges and Opportunities for Drug Delivery.Pharmaceutics · 2022Review
- EGFR, the Lazarus target for precision oncology in glioblastoma.Neuro-oncology · 2022Review
12 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
8 authors at 5 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Erlotinib, an epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor, is active in glioblastoma. We evaluated erlotinib efficacy in patients with first-relapse glioblastoma and assessed whether response was related to EGFR amplification and/or concomitant use of enzyme-inducing antiepileptic drugs (EIAEDs) in a phase II open-label study of glioblastoma patients in first relapse. Patients took erlotinib daily until progression. Starting dose was 150 mg for patients not taking EIAEDs and 300 mg for patients taking EIAEDs. Tumors were radiographically assessed every 8 weeks. Response was evaluated by investigators and confirmed by an independent radiology facility (IRF). The primary efficacy outcome was the objective response (OR) rate, according to the modified WHO criteria. Enrollment (n = 48) was terminated after a planned interim analysis due to an insufficient number of responses. The IRF confirmed 1 complete and 2 partial responses (PRs), for an OR rate of 6.3% (95% confidence interval [CI]: 1.7-17.0). Investigators determined 1 complete response and 3 PRs, median response duration of 7.0 months, 6-month progression-free survival (PFS) of 20% (95% CI: 10.0-32.4), and median survival of 9.7 months (95% CI: 5.9-11.6). Outcomes were not related to EGFR amplification or EIAED status. Diarrhea and rash were the most common adverse events (AEs); 23% of patients experienced grade 3-4 drug-related AEs. Despite the limited number of responses, 6-month PFS and median survival reached or exceeded the previously reported values for patients undergoing chemotherapy for recurrent glioblastoma. EGFR amplification was not associated with erlotinib activity. Given the large CIs and nonrandomized nature of the study, results should be interpreted cautiously.
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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.