Trial reportCancer medicine2023
A phase II trial of regorafenib in patients with advanced Ewing sarcoma and related tumors of soft tissue and bone: SARC024 trial results.
Trial report in Cancer medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers, 3 of them syntheses that pooled it.
What it found
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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
45 citing papers in PubMed, 3 syntheses or guidelines pooled it, 53 citations in OpenAlex.
- Tyrosine kinase inhibitors in Ewing's sarcoma: a systematic review.BMC cancer · 2025Pooled it
- Biological Sample Collection to Advance Research and Treatment: A Fight Osteosarcoma Through European Research and Euro Ewing Consortium Statement.Clinical cancer research : an official journal of the American Association for Cancer Research · 2024Guideline
- Systematic review of phase-I/II trials enrolling refractory and recurrent Ewing sarcoma: Actual knowledge and future directions to optimize the research.Cancer medicine · 2021Pooled it
- Trabectedin and low-dose irinotecan to target EWS::FLI1 in Ewing sarcoma: a phase 1/2 trial.Nature medicine · 2026Trial
- Nivolumab and sunitinib in patients with advanced bone sarcomas: A multicenter, single-arm, phase 2 trial.Cancer · 2025Trial
- Regorafenib in patients with advanced Ewing sarcoma: results of a non-comparative, randomised, double-blind, placebo-controlled, multicentre Phase II study.British journal of cancer · 2023Trial
- A phase II trial of regorafenib in patients with advanced Ewing sarcoma and related tumors of soft tissue and bone: SARC024 trial results.Cancer medicine · 2023Trial
- A Randomized, Double-Blind, Placebo-Controlled, Phase II Study of Regorafenib Versus Placebo in Advanced/Metastatic, Treatment-Refractory Liposarcoma: Results from the SARC024 Study.The oncologist · 2020Trial
- Randomized Double-Blind Phase II Study of Regorafenib in Patients With Metastatic Osteosarcoma.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2019Trial
- Metastatic Ewing Sarcoma, Patterns of Care and Outcomes of Patients in a Real-Life National Setting Over a Decade.Cancer medicine · 2026Observational
- Potential biomarkers of Ewing sarcoma identified through a Europe-wide analysis of prospectively collected samples.Scientific reports · 2026Article
- Targeted therapies in pediatric oncology: A start.Molecular therapy. Oncology · 2026Review
- Development of a UPLC-MS/MS method and its application for the pharmacokinetic analysis of regorafenib in rats.Scientific reports · 2026Article
- Multi-Targeted TKIs in Patients with Advanced Ewing Sarcoma: A Systematic Review and Single-Arm Meta-Analysis.Cancers · 2026Review
- Precision oncology in the treatment of patients with bone sarcomas: an up-to-date narrative review.Exploration of targeted anti-tumor therapy · 2026Review
- The Role of Deubiquitinating Enzymes in Primary Bone Cancer.Molecular biotechnology · 2025Review
- Systemic strategies for osteosarcoma: advances and future directions.Discover oncology · 2025Review
- Gene Fusions as Potential Therapeutic Targets in Soft Tissue Sarcomas.Biomolecules · 2025Review
- Decoding the immune landscape in Ewing sarcoma pathogenesis: The role of tumor infiltrating immune cells and immune milieu.Journal of bone oncology · 2025Review
- Targeting metastasis in paediatric bone sarcomas.Molecular cancer · 2025Review
Corrections and comments
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Authors and funding
16 authors at 15 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundRegorafenib is one of several FDA-approved cancer therapies targeting multiple tyrosine kinases. However, there are few subtype-specific data regarding kinase inhibitor activity in sarcomas. We report results of a single arm, phase II trial of regorafenib in advanced Ewing family sarcomas.
methodsPatients with metastatic Ewing family sarcomas (age ≥ 18, ECOG 0-2, good organ function) who had received at least one line of therapy and experienced progression within 6 months of registration were eligible. Prior kinase inhibitors were not allowed. The initial dose of regorafenib was 160 mg oral days 1-21 of a 28-day cycle. The primary endpoint was estimating progression-free rate (PFR) at 8 weeks employing RECIST 1.1.
resultsThirty patients (median age, 32 years; 33% women [10 patients]; bone primary, 40%; extraskeletal primary, 60%) enrolled at 14 sites. The most common grade 3 or higher toxicities were hypophosphatemia (5 grade 3, 1 grade 4), hypertension (2 grade 3), elevated ALT (2 grade 3). Sixteen patients required dose reductions, most often for hypophosphatemia (n = 7 reductions in 6 patients); two stopped regorafenib for toxicity. There was one death unrelated to treatment in the 30-day post-study period. Median progression-free survival (PFS) was 14.8 weeks (95% CI 7.3-15.9); PFR at 8 weeks by Kaplan-Meier analysis was 63% (95% CI 46-81%). The RECIST 1.1 response rate was 10%. Median OS was 53 weeks (95% CI 37-106 weeks).
conclusionsRegorafenib has modest activity in the Ewing family sarcomas. Toxicity was similar to that seen in approval studies.
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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.