NCT04469517

Influence of Hypoxic Induced Factors in Patients With Hereditary Hemorrhagic Telangiectasia

Influence of Hypoxic Induced Factors in Patients With Hereditary Hemorrhagic Telangiectasia (HHT)

• Status: Recruiting
• Phase: —
• Study type: Observational
• Enrollment: 100 (estimated)
• Sponsor: University Hospital, Essen · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Accepted

Summary

Patients with hereditary hemorrhagic telangiectasia (HHT) suffer from an inherited disorder leading to systemic vascular malformations. Mutations in several genes of the transforming growth factor (TGF)-β superfamily pathway influence angiogenesis in patients with HHT. The genetic loss of ALK1 or ENG alone are not sufficient to induce AVMs; environmental insults that could trigger angiogenesis (e.g. wounding) are also needed. In this study it will be analyzed if hypoxic induced factors could have an influence on the disease HHT.

Detailed description

Hereditary hemorrhagic telangiectasia (HHT) is characterized by systemic vascular malformations leading to recurrent bleedings and shunt formation especially in the liver, lungs and the brain. The underlying pathogenic HHT mechanism remains unclear. The wide variability in age of onset and severity of symptoms amongst patients, even within the same family, suggests several factors contribute to the complexity of this disease. Mutations in several genes of the transforming growth factor (TGF)-β superfamily pathway influence angiogenesis in patients with HHT. The genetic loss of ALK1 or ENG alone are not sufficient to induce AVMs; environmental insults that could trigger angiogenesis (e.g. wounding) are also needed. In this study it will be analyzed if hypoxic induced factors could have an influence on the disease HHT.

Conditions

• Hereditary Hemorrhagic Telangiectasia

Interventions

Type	Name	Description
OTHER	hypoxic induced factors	hypoxic induced factors analyzed in blood sample

Timeline

• Start date: 2020-08-10
• Primary completion: 2025-12-31
• Completion: 2026-10-01
• First posted: 2020-07-14
• Last updated: 2024-12-06

Locations

1 site across 1 country: Germany