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A congenital vascular bone syndrome (CVBS) characterized by the presence of a vascular malformation in a limb, mainly of the arteriovenous type, which results in overgrowth of the affected limb.
Features include: Abnormality of blood and blood-forming tissues, Seizure, Hand polydactyly, and Macrodactyly and 10 more.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Brain and nerves | 2 | Seizure, Intellectual disability |
Arms and legs |
Biomarker and diagnostic research for angioosteohypertrophic syndrome has been reported in the published literature.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
5 clinical trials registered, 2 recruiting. Interventions under study include drug therapy, other interventions, and medical devices. Pipeline includes 1 PHASE3, 1 PHASE2, 1 NA. Research is sponsored by a mix of industry and academic institutions.
NCT ID | Title | Phase | Sponsor | Status |
|---|---|---|---|---|
[NCT06789913](https://clinicaltrials.gov/study/NCT06789913) |
Data assembled from 6 of 12 sources · Last updated Sep 19, 2026, 1:05 PM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center
2
Hand polydactyly, Finger aplasia |
Skin | 2 | Hyperpigmented nevi and streak, Lymphedema |
Blood and immune system | 1 | Abnormality of blood and blood-forming tissues |
Eyes | 1 | Glaucoma |
A Phase 2 Study of Mutant-selective PI3Kα Inhibitor, RLY-2608, in Adults and Children With PIK3CA Related Overgrowth Spectrum and Malformations Driven by PIK3CA Mutation (The ReInspire Study) |
PHASE2 |
Relay Therapeutics, Inc. |
RECRUITING |
[NCT06642051](https://clinicaltrials.gov/study/NCT06642051) | Safety of the Sonablate HIFU System for the Ablation of Incompetent Veins of the Periphery | NA | Sonablate | UNKNOWN |
[NCT03001180](https://clinicaltrials.gov/study/NCT03001180) | Identification of Biomarkers for Patients with Vascular Anomalies | — | Children's Hospital Medical Center, Cincinnati | UNKNOWN |
[NCT02399527](https://clinicaltrials.gov/study/NCT02399527) | Lymphatic Anomalies Registry for the Assessment of Outcome Data | — | Boston Children's Hospital | RECRUITING |
[NCT07285005](https://clinicaltrials.gov/study/NCT07285005) | A Study to Investigate Efficacy and Safety of KP-001 Compared With Placebo in Patients Aged ≥2 Years With Common VM, Common LM, or KTS/CLOVES Syndrome | PHASE3 | Kaken Pharmaceutical | UNKNOWN |
86 publications have been identified in PubMed for angioosteohypertrophic syndrome. Research spans Case Report / Case Series (77%), Review / Meta-Analysis (7%), and Basic Science / Preclinical (5%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 66 | 77% |
Research summaries | 6 | 7% |
Laboratory research | 4 | 5% |
Clinical study results | 3 | 3% |
New treatment approaches | 3 | 3% |
Other research | 2 | 2% |
Testing and diagnosis research | 1 | 1% |
Disease patterns and progression | 1 | 1% |
Khandelwal A (2026). [PMID: 41930186](https://pubmed.ncbi.nlm.nih.gov/41930186/). *Clin Med Insights Case Rep*. [Case Report / Case Series]
Mathur M (2026). [PMID: 41923965](https://pubmed.ncbi.nlm.nih.gov/41923965/). *Skin Health Dis*. [Case Report / Case Series]
Jiang W (2026). [PMID: 41997537](https://pubmed.ncbi.nlm.nih.gov/41997537/). *J Vasc Surg Venous Lymphat Disord*. [Gene Therapy / Novel Therapeutics]
Naganathan S (2026). [PMID: 32644415](https://pubmed.ncbi.nlm.nih.gov/32644415/). *Unknown Journal*. [Review / Meta-Analysis]
Gowda VK (2026). [PMID: 41571388](https://pubmed.ncbi.nlm.nih.gov/41571388/). *BMJ case reports*. [Case Report / Case Series]
Bakshi N (2026). [PMID: 40637364](https://pubmed.ncbi.nlm.nih.gov/40637364/). *International journal of gynecological pathology : official journal of the International Society of Gynecological Pathologists*. [Case Report / Case Series]
Jia H (2026). [PMID: 41864289](https://pubmed.ncbi.nlm.nih.gov/41864289/). *J Am Acad Dermatol*. [Other]
Yashiro K (2026). [PMID: 42028476](https://pubmed.ncbi.nlm.nih.gov/42028476/). *Cureus*. [Case Report / Case Series]
Meenakshi Menon R (2026). [PMID: 41809025](https://pubmed.ncbi.nlm.nih.gov/41809025/). *Case reports in women's health*. [Case Report / Case Series]
Roepke E (2026). [PMID: 40934979](https://pubmed.ncbi.nlm.nih.gov/40934979/). *Gastroenterology*. [Basic Science / Preclinical]