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Kaposiform hemangioendothelioma is a very rare, aggressive, vascular tumor manifesting in the neonatal period or in infancy as cutaneous vascular tumors to large infiltrative lesions.
Biomarker and diagnostic research for kaposiform hemangioendothelioma has been reported in the published literature.
No approved treatments are currently available for kaposiform hemangioendothelioma. An additional 1 compound holds orphan drug designation.
While no drugs are FDA-approved specifically for kaposiform 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 kaposiform hemangioendothelioma. Orphan designation reflects regulatory interest and does not indicate approval for treatment.
Brand Name | Generic Name | Sponsor |
|---|
Estimated prevalence: Unknown (Unknown prevalence).
7 clinical trials registered, 3 recruiting. Interventions under study include other interventions and drug therapy. Pipeline includes 1 PHASE4, 3 PHASE2. Research is primarily sponsored by academic and government institutions.
NCT ID | Title | Phase | Sponsor | Status |
|---|---|---|---|---|
[NCT03001180](https://clinicaltrials.gov/study/NCT03001180) |
Data assembled from 5 of 12 sources · Last updated Sep 19, 2026, 12:51 AM UTC
European rare disease database
Genetic and Rare Diseases Info Center
Designated
Exclusivity End |
|---|
Designation Status |
|---|
sirolimus | sirolimus | Nobelpharma Co., Ltd. | 2025 | — | Designated |
sirolimus is referenced in active clinical trials for kaposiform hemangioendothelioma (designated 2025).
Gene therapy approaches for kaposiform hemangioendothelioma have been reported in the published literature.
7 trials found
Identification of Biomarkers for Patients with Vascular Anomalies
— |
Children's Hospital Medical Center, Cincinnati |
UNKNOWN |
[NCT04921722](https://clinicaltrials.gov/study/NCT04921722) | Percutaneous Administration of Sirolimus in the Treatment of Superficial Complicated Vascular Anomalies | PHASE4 | Children's Hospital of Fudan University | UNKNOWN |
[NCT02399527](https://clinicaltrials.gov/study/NCT02399527) | Lymphatic Anomalies Registry for the Assessment of Outcome Data | — | Boston Children's Hospital | RECRUITING |
[NCT07131644](https://clinicaltrials.gov/study/NCT07131644) | Sirolimus Discontinuation Strategies in Kaposiform Hemangioendothelioma | PHASE2 | West China Hospital | NOT_YET_RECRUITING |
[NCT04056962](https://clinicaltrials.gov/study/NCT04056962) | Tacrolimus for the Treatment of Superficial Kaposiform Hemangioendothelioma and Tufted Angioma | PHASE2 | West China Hospital | UNKNOWN |
73 publications have been identified in PubMed for kaposiform hemangioendothelioma. Research spans Case Report / Case Series (45%), Review / Meta-Analysis (14%), and Clinical Trial Publication (10%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 33 | 45% |
Research summaries | 10 | 14% |
Clinical study results | 7 | 10% |
Other research | 6 | 8% |
Testing and diagnosis research | 6 | 8% |
Laboratory research | 6 | 8% |
Disease patterns and progression | 4 | 5% |
New treatment approaches | 1 | 1% |
Styczewska M (2026). [PMID: 41466529](https://pubmed.ncbi.nlm.nih.gov/41466529/). *Pediatric blood & cancer*. [Case Report / Case Series]
Pereira LB (2026). [PMID: 41895209](https://pubmed.ncbi.nlm.nih.gov/41895209/). *Anais brasileiros de dermatologia*. [Review / Meta-Analysis]
Veeser J (2026). [PMID: 41261911](https://pubmed.ncbi.nlm.nih.gov/41261911/). *J Dtsch Dermatol Ges*. [Case Report / Case Series]
Xu Y (2026). [PMID: 41834121](https://pubmed.ncbi.nlm.nih.gov/41834121/). *Pediatr Blood Cancer*. [Case Report / Case Series]
Nozawa A (2026). [PMID: 41359887](https://pubmed.ncbi.nlm.nih.gov/41359887/). *J Pediatr Hematol Oncol*. [Diagnostic / Biomarker]
Hao Z (2026). [PMID: 41680958](https://pubmed.ncbi.nlm.nih.gov/41680958/). *Cancer imaging : the official publication of the International Cancer Imaging Society*. [Epidemiology / Natural History]
Mahoney MJ (2026). [PMID: 40820232](https://pubmed.ncbi.nlm.nih.gov/40820232/). *Pediatr Dermatol*. [Case Report / Case Series]
Borfălău CD (2026). [PMID: 41944972](https://pubmed.ncbi.nlm.nih.gov/41944972/). *Veterinary research communications*. [Case Report / Case Series]
Țarcă E (2026). [PMID: 42194698](https://pubmed.ncbi.nlm.nih.gov/42194698/). *J Clin Med*. [Review / Meta-Analysis]
Yuan J (2026). [PMID: 42154819](https://pubmed.ncbi.nlm.nih.gov/42154819/). *Hum Vaccin Immunother*. [Clinical Trial Publication]
AI-curated news mentioning kaposiform hemangioendothelioma
Updated Aug 27, 2026
A recent study highlights the high responsiveness of head and neck kaposiform hemangioendothelioma to sirolimus monotherapy, particularly in cases without the Kasabach-Merritt phenomenon. This finding could inform treatment strategies for this rare vascular tumor.
A recent study reports spontaneous regression of kaposiform hemangioendothelioma without the associated Kasabach-Merritt phenomenon. This finding may provide new insights into the natural history and management of this rare vascular tumor.