NCT03691142

Brief Summary

Hereditary Haemorrhagic Telangiectasia (HHT) is a rare inherited genetic disease of autosomal dominant inheritance with a prevalence of about 1/5000. It is manifested by haemorrhage, mucocutaneous telangiectasia and visceral arteriovenous malformations (AVMs) (lung, liver and nervous system). Severe complications during pregnancy in HHT are rare but considered high risk. Intracranial or pulmonary haemorrhage, stroke and heart failure have been reported in some women with HHT during pregnancy. These complications occur most often in the second and third trimesters when maternal physiological changes such as peripheral vasodilatation and increased cardiac output are at their peak. Previous retrospective studies were conducted with numbers ranging from 40 to 97 patients and highlighted the importance of early screening of complications and specific management. The aim of this study is to describe, on a larger number of patients, the obstetric and neonatal complications in patients with HHT and followed in the French Reference Center for HHT.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
207

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Oct 2018

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 28, 2018

Completed
3 days until next milestone

First Posted

Study publicly available on registry

October 1, 2018

Completed
1 day until next milestone

Study Start

First participant enrolled

October 2, 2018

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 2, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 2, 2019

Completed
Last Updated

October 23, 2019

Status Verified

October 1, 2019

Enrollment Period

1 year

First QC Date

September 28, 2018

Last Update Submit

October 21, 2019

Conditions

Outcome Measures

Primary Outcomes (1)

  • Occurrence of complications during pregnancy

    The questionnaire consists in collecting obstetric history (number of pregnancies, abortions), complications during pregnancy, delivery type and neonatal outcomes.

    Interview time (about 15 minutes)

Study Arms (1)

Women with Hereditary Haemorrhagic Telangiectasia

Women with Hereditary Haemorrhagic Telangiectasia with at least one full term pregnancy

Other: Questionnaire

Interventions

Interview of women with Hereditary Haemorrhagic Telangiectasia (HHT) during a consultation in the Reference Center for HHT or through a phone questionnaire about obstetric history, complications during pregnancy, delivery and neonatal outcomes.

Women with Hereditary Haemorrhagic Telangiectasia

Eligibility Criteria

Age18 Years+
Sexfemale(Gender-based eligibility)
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Women with Hereditary Haemorrhagic Telangiectasia and one or more past pregnancies.

You may qualify if:

  • Women ≥ 18 years.
  • Patients monitored for clinically confirmed Hereditary Haemorrhagic Telangiectasia (presence of at least three Curaçao criteria) and / or with molecular biology confirmation.
  • Patients with at least 1 full term pregnancy between 1960 and 2018.
  • Received information and no opposition to participate in the study.

You may not qualify if:

  • No full term pregnancies.
  • Refusal to participate in the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Centre de Référence pour la maladie de Rendu-Osler Service Génétique Clinique Bâtiment A1 - Hôpital Femme-Mère-Enfant - Hospices Civils de Lyon

Bron, 69677, France

Location

MeSH Terms

Conditions

Telangiectasia, Hereditary Hemorrhagic

Interventions

Surveys and Questionnaires

Condition Hierarchy (Ancestors)

Hemostatic DisordersVascular DiseasesCardiovascular DiseasesTelangiectasisHemorrhagic DisordersHematologic DiseasesHemic and Lymphatic DiseasesVascular MalformationsCardiovascular AbnormalitiesCongenital AbnormalitiesCongenital, Hereditary, and Neonatal Diseases and Abnormalities

Intervention Hierarchy (Ancestors)

Data CollectionEpidemiologic MethodsInvestigative TechniquesHealth Care Evaluation MechanismsQuality of Health CareHealth Care Quality, Access, and EvaluationPublic HealthEnvironment and Public Health

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 28, 2018

First Posted

October 1, 2018

Study Start

October 2, 2018

Primary Completion

October 2, 2019

Study Completion

October 2, 2019

Last Updated

October 23, 2019

Record last verified: 2019-10

Data Sharing

IPD Sharing
Will not share

Locations