Influence of Hypoxic Induced Factors in Patients With Hereditary Hemorrhagic Telangiectasia

University Hospital Essen

Status: Enrolling

Conditions: Hereditary Hemorrhagic Telangiectasia

Treatments: Other: hypoxic induced factors

Study type: Observational

Funder types: Other

Identifiers

NCT04469517

HIF in HHT

Details and patient eligibility

About

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.

Full 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.

Enrollment: 100 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• diagnosed HHT (genetic testing and/ or fulfill at least 3 Curacao Criteria)
• older than 17 years
• ability to consent

Exclusion criteria

• if inclusion Criteria are not met

Trial design

100 participants in 2 patient groups

HHT

Description:

patients with HHT

Treatment:

Other: hypoxic induced factors

control

Description:

persons age- and sex matched who do not suffer from HHT nor their first or second degree relatives

Treatment:

Other: hypoxic induced factors