Genetic Factors of Idiopathic Polypoidal Vasculopathies in the ATM Gene (Ataxia Telangiectasia Mutated) (ATM)

October 26, 2018 updated by: Fondation Ophtalmologique Adolphe de Rothschild

Identification of the Predisposing Genetic Factors of Idiopathic Polypoidal Vasculopathies in the ATM Gene (Ataxia Telangiectasia Mutated)

Polypoidal choriodal vasculopathy (PCV) is an ophthalmologic disease, characterized by vascular abnormalities of the walls of small choroidal vessels, reproducing the specific aspect of polyps (cluster aspect). PCV is one of the "boundary-forms" of age related macular degeneration.

These vasculopathies can be idiopathic. Following the radiotherapy treatments of active and occult-typed neovessels in Age-Related Macular Degeneration (ARMD), 10% of the patients would present typical polypoidal vasculopathic lesions. These polypoidal secondary lesions have been induced by radiotherapy treatment and may show an increased sensibility to radiation in these patients.

Such an increase of radiosensibility is noticed in ataxia telangiectasia syndrome, in relation to the ATM gene mutations. The secondary or idiopathic polypoidal vasculopathic lesions are to be brought closer to telangiectasias in Ataxia Telangiectasia. Considering the iatrogenic component of radiotherapy in the secondary forms of ataxia telangiectasia, it seems legitimate to search for predisposing variants to polypoidal vasculopathies in the ATM gene.

Considering the frequency of PCV worldwide, it seems important to identify the predisposing genetic factors of the ATM gene. These biomarkers to the pathology might enable us to offer prevention (reinforced protection against radiations, including light) and to develop therapeutics (recruitment of other kinases, ATM's partners, in the stability and cellular control of DNA).

Study Overview

Status

Terminated

Conditions

Study Type

Observational

Enrollment (Actual)

7

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • France
      • Paris, France, 75019
        • Fondation Ophtalmologique A. de Rotchschild

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients with polypoidal choriodal vasculopathy

Description

Inclusion Criteria:

  • Adult caucasian patient
  • Polypoidal choriodal vasculopathy
  • Informed written consent

Exclusion Criteria:

  • History of cephalic radiotherapy
  • Absence of affiliation to social security or universal health coverage (CMU)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Variants in the ATM gene
Time Frame: Day 1
Compared analysis of the variants frequency (heterozygote, homozygote variants versus the wild variant) in the ATM gene.
Day 1

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Fondation Ophtalmologique Adolphe de Rothschild

Investigators

  • Principal Investigator: Martine MAUGET FAYSSE, Fondation Ophtalmologique A. De Rothschild

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

November 5, 2015

Primary Completion (Actual)

October 23, 2018

Study Completion (Actual)

October 23, 2018

Study Registration Dates

First Submitted

August 3, 2016

First Submitted That Met QC Criteria

August 3, 2016

First Posted (Estimate)

August 5, 2016

Study Record Updates

Last Update Posted (Actual)

October 29, 2018

Last Update Submitted That Met QC Criteria

October 26, 2018

Last Verified

October 1, 2018

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • MMT_2015_4

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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