Trial reportJournal of clinical oncology : official journal of the American Society of Clinical Oncology2015
Double-Blind Phase III Randomized Trial of the Antiprogestin Agent Mifepristone in the Treatment of Unresectable Meningioma: SWOG S9005.
Trial report in Journal of clinical oncology : official journal of the American Society of Clinical Oncology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers, 5 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
65 citing papers in PubMed, 5 syntheses or guidelines pooled it, 161 citations in OpenAlex.
- The concept, intention, and evaluation of the term treatment-refractory meningioma.Journal of neuro-oncology · 2025Pooled it
- Benchmarking the efficacy of salvage systemic therapies for recurrent meningioma: A RANO group systematic review and meta-analysis to guide clinical trial design.Neuro-oncology · 2025Pooled it
- European Association of Neuro-Oncology guideline on molecular testing of meningiomas for targeted therapy selection.Neuro-oncology · 2025Guideline
- EANO guideline on the diagnosis and management of meningiomas.Neuro-oncology · 2021Guideline
- The Role of Mifepristone in Meningiomas Management: A Systematic Review of the Literature.BioMed research international · 2015Pooled it
- Trabectedin for recurrent WHO grade 2 or 3 meningioma: A randomized phase II study of the EORTC Brain Tumor Group (EORTC-1320-BTG).Neuro-oncology · 2022Trial
- Intermediate-risk meningioma: initial outcomes from NRG Oncology RTOG 0539.Journal of neurosurgery · 2018Trial
- Temporally-Modulated Pulsed Radiation Therapy for Large-Volume Reirradiation of Recurrent Meningioma.Advances in radiation oncology · 2026Article
- A proteogenomic RNA processing mechanism drives sex differences in meningioma.Research square · 2026Article
- Comprehensive analysis of TEAD inhibition in meningioma identifies MEK and mTOR inhibition as effective combination therapies against resistant lines.bioRxiv : the preprint server for biology · 2026Article
- Targeted and Personalized Therapy for Difficult Benign Brain Tumors: A Review.Journal of personalized medicine · 2026Review
- Risk of intracranial meningioma requiring surgical intervention among recent hormonal contraceptives users.Journal of neuro-oncology · 2026Article
- Combined SSTR2-targeted Analogue withFrontiers in oncology · 2026Article
- The hormonal nexus in PIK3CA-mutated meningiomas: implications for targeted therapy and clinical trial design.Journal of neuro-oncology · 2025Review
- Bibliometric analysis of publication trends in meningioma research (1992 - 2023).Neurosurgical review · 2025Review
- New approaches to targeted drug therapy of intracranial tumors.Cell death discovery · 2025Review
- Meningioma: International Consortium on Meningiomas consensus review on scientific advances and treatment paradigms for clinicians, researchers, and patients.Neuro-oncology · 2024Review
- Steroid profile in patients with breast cancer and in mice treated with mifepristone.Endocrine-related cancer · 2024Article
- Establishment of tumor microenvironment-preserving organoid model from patients with intracranial meningioma.Cancer cell international · 2024Article
- Regression of multiple intracranial meningiomas after cessation of long-term synthetic progesterone (megestrol) medication: case report and autopsy.Free neuropathology · 2024Article
5 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
13 authors at 1 institution in 1 country.
Funding
Abstract
purposeProgesterone receptors are expressed in approximately 70% of meningiomas. Mifepristone is an oral antiprogestational agent reported to have modest activity in a phase II study. This multicenter, prospective, randomized, placebo-controlled phase III trial conducted by SWOG was planned to define the role of mifepristone in the treatment of unresectable meningioma. PATIENTS AND
methodsEligible patients were randomly assigned to receive either mifepristone or placebo for 2 years unless disease progressed. Patients who were stable or responding to protocol therapy after 2 years had the option to continue with the same blinded therapy. Serial follow-up allowed assessment of efficacy and toxicity. Time to treatment failure and overall survival were ascertained for all randomly assigned patients. On progression, patients receiving placebo could cross over and receive active drug.
resultsAmong 164 eligible patients, 80 were randomly assigned to mifepristone and 84 to placebo. Twenty-four patients (30%) were able to complete 2 years of mifepristone without disease progression, adverse effects, or other reasons for discontinuation. Twenty-eight patients (33%) in the placebo arm completed the 2-year study. There was no statistical difference between the arms in terms of failure-free or overall survival.
conclusionLong-term administration of mifepristone was well tolerated but had no impact on patients with unresectable meningioma.
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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.