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A low-grade malignant blood vessel neoplasm. It is characterized by the presence of epithelioid endothelial cells. The neoplastic cells are arranged in cords and nests, which are embedded in a myxoid to hyalinized stroma.
Biomarker and diagnostic research for epithelioid hemangioendothelioma has been reported in the published literature.
No approved treatments are currently available for epithelioid hemangioendothelioma. An additional 1 compound holds orphan drug designation.
While no drugs are FDA-approved specifically for epithelioid hemangioendothelioma, some of the following designated compounds may be used off-label in clinical practice. Treatment decisions should be made in consultation with a specialist familiar with this condition.
The following drugs have received orphan drug designation from the FDA for epithelioid hemangioendothelioma. Orphan designation reflects regulatory interest and does not indicate approval for treatment.
Brand Name | Generic Name | Sponsor |
|---|
Estimated prevalence: Unknown (Unknown prevalence).
8 clinical trials registered, 6 recruiting. Interventions under study include drug therapy, other interventions, and procedural interventions. Pipeline includes 3 PHASE2, 2 PHASE1, 1 NA. Research is sponsored by a mix of industry and academic institutions.
NCT ID | Title | Phase | Sponsor | Status |
|---|---|---|---|---|
[NCT03331250](https://clinicaltrials.gov/study/NCT03331250) |
Data assembled from 5 of 12 sources · Last updated Sep 19, 2026, 6:47 AM UTC
European rare disease database
Genetic and Rare Diseases Info Center
Designated
Exclusivity End |
|---|
Designation Status |
|---|
N-methyl-3-(1-methyl-1H-imidazol-4-yl)-4-((4-(trifluoromethyl)benzyl)amino)benzenesulfonamide | N-methyl-3-(1-methyl-1H-imidazol-4-yl)-4-((4-(trifluoromethyl)benzyl)amino)benzenesulfonamide | Ikena Oncology | 2023 | — | Withdrawn |
Gene therapy approaches for epithelioid hemangioendothelioma have been reported in the published literature.
8 trials found
Eribulin in Angiosarcoma and Epithelioid Hemangioendothelioma (EHE) |
PHASE2 |
Massachusetts General Hospital |
UNKNOWN |
[NCT03967834](https://clinicaltrials.gov/study/NCT03967834) | Multimodal Immune Characterization of RAre Soft Tissue Sarcoma - MIRAS Project From SARRA (SARcome RAre) Project of the French Sarcoma Group | NA | Institut Claudius Regaud | RECRUITING |
[NCT06452160](https://clinicaltrials.gov/study/NCT06452160) | A Study of BGC515 Capsules in Subjects With Advanced Solid Tumors | PHASE1 | BridGene Biosciences Inc. | RECRUITING |
[NCT06541652](https://clinicaltrials.gov/study/NCT06541652) | A French Multicenter Observational Retrospective Study of Rare Primary Liver Cancers | — | Federation Francophone de Cancerologie Digestive | RECRUITING |
[NCT06239272](https://clinicaltrials.gov/study/NCT06239272) | NRSTS2021, A Risk Adapted Study Evaluating Maintenance Pazopanib, Limited Margin, Dose-Escalated Radiation Therapy and Selinexor in Non-Rhabdomyosarcoma Soft Tissue Sarcoma (NRSTS) | PHASE1 | St. Jude Children's Research Hospital | RECRUITING |
266 publications have been identified in PubMed for epithelioid hemangioendothelioma. Research spans Case Report / Case Series (64%), Review / Meta-Analysis (11%), and Clinical Trial Publication (6%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 171 | 64% |
Research summaries | 30 | 11% |
Clinical study results | 17 | 6% |
Laboratory research | 13 | 5% |
Disease patterns and progression | 11 | 4% |
Testing and diagnosis research | 10 | 4% |
Other research | 8 | 3% |
New treatment approaches | 6 | 2% |
Takano Y (2026). [PMID: 41473008](https://pubmed.ncbi.nlm.nih.gov/41473008/). *DEN Open*. [Case Report / Case Series]
Daggumati L (2026). [PMID: 41591253](https://pubmed.ncbi.nlm.nih.gov/41591253/). *Radiology*. [Epidemiology / Natural History]
Abu Shamleh R (2026). [PMID: 42031396](https://pubmed.ncbi.nlm.nih.gov/42031396/). *BMJ Case Rep*. [Case Report / Case Series]
Scalia G (2026). [PMID: 41165128](https://pubmed.ncbi.nlm.nih.gov/41165128/). *Head & neck*. [Case Report / Case Series]
Murgas KA (2026). [PMID: 41687273](https://pubmed.ncbi.nlm.nih.gov/41687273/). *Am J Surg*. [Epidemiology / Natural History]
Yaprak Bayrak B (2026). [PMID: 40495624](https://pubmed.ncbi.nlm.nih.gov/40495624/). *Int J Surg Pathol*. [Case Report / Case Series]
Pal A (2026). [PMID: 40317104](https://pubmed.ncbi.nlm.nih.gov/40317104/). *J Vasc Access*. [Review / Meta-Analysis]
Chen TW (2026). [PMID: 41855129](https://pubmed.ncbi.nlm.nih.gov/41855129/). *Clin Cancer Res*. [Clinical Trial Publication]
Deshwal A (2026). [PMID: 41396546](https://pubmed.ncbi.nlm.nih.gov/41396546/). *Int J Surg Pathol*. [Review / Meta-Analysis]
Xue L (2026). [PMID: 41697726](https://pubmed.ncbi.nlm.nih.gov/41697726/). *Clin Nucl Med*. [Diagnostic / Biomarker]