A study following patients with Huntington's Disease over time

Help us learn more about Huntington's Disease

a study on Huntington's Disease

Summary

for people ages 18 years and up (full criteria)
healthy people welcome
at UC IrvineUCLAUC DavisUCSDUCSF
study started
estimated completion
Neal Hermanowicz (uci) Susan Perlman (ucla) Vicki Wheelock (ucdavis) Jody Corey-Bloom (ucsd) Michael Geschwind (ucsf)

Description

Summary

Enroll-HD is a longitudinal, observational, multinational study that integrates two former Huntington's disease (HD) registries—REGISTRY in Europe, and COHORT in North America and Australasia—while also expanding to include sites in Latin America. More than 20,000 participants have now enrolled into the study. With annual assessments and no end date, Enroll-HD has built a large and rich database of longitudinal clinical data and biospecimens that form the basis for studies developing tools and biomarkers for progression and prognosis, identifying clinically-relevant phenotypic characteristics, and establishing clearly defined endpoints for interventional studies. Periodic cuts of the database are now available to any interested researcher to use in their research - visit www.enroll-hd.org/for-researchers/access-data/ to learn more.

Official Title

Enroll -HD: A Prospective Registry Study in a Global Huntington's Disease Cohort

Details

The primary objective of Enroll-HD is to develop a comprehensive repository of prospective and systematically collected clinical research data (demography, clinical features, family history, genetic characteristics) and biological specimens (blood) from individuals with manifest HD, unaffected individuals known to carry the HD mutation or at risk of carrying the HD mutation, and control research participants (e.g., spouses, siblings or offspring of HD mutation carriers known not to carry the HD mutation). Enroll-HD is conceived as a broad-based and long-term project to maximize the efficiencies of non-clinical research and participation in clinical research. With 173 clinical sites in 19 countries, Enroll-HD is now the largest HD database available and is accessible to any interested researcher - visit www.enroll-hd.org/for-researchers/access-data/ to learn more.

Keywords

Huntington's DiseaseHuntington DiseaseJuvenile Huntington's DiseaseRegistryCohortCHDI

Eligibility

You can join if…

Open to people ages 18 years and up

  • Carriers: This group comprises the primary study population and consists of individuals who carry the HD gene expansion mutation.
  • Controls: This group comprises the comparator study population and consists of individuals who do not carry the HD expansion mutation.

These two major categories can be further subdivided into six different subgroups of eligible individuals:

  • Manifest/Motor-manifest HD: Carriers with clinical features that are regarded in the opinion of the investigator as diagnostic of HD.
  • Pre-Manifest/-Motor-manifest HD: Carriers without clinical features regarded as diagnostic of HD.
  • Genotype Unknown: This group includes a first or second degree relative (i.e., related by blood to a carrier) who has not undergone predictive testing for HD and therefore has an undetermined carrier status.
  • Genotype Negative: This group includes a first or second degree relative (i.e., related by blood to a carrier) who has undergone predictive testing for HD and is known not to carry the HD expansion mutation.
  • Family Control: Family members or individuals not related by blood to carriers (e.g., spouses, partners, caregivers).
  • Community Controls: Individuals unrelated to HD carriers who did not grow up in a family affected by HD. Data collected from community controls will be used for generation of normative data for sub-studies.

Participant status will be captured in the study database using 2 variables: 1)

Investigator Determined Status: this will be based on clinical signs and symptoms and genotyping performed as part of medical care, and will be updated at every visit; and 2)

Research Genotyping Status: this will be based on genotyping conducted as part of Enroll-HD study procedures. Based on research genotyping, participants will be reclassified under this variable from Genotype Unknown to 'Carriers' or 'Controls'. Investigators and participants will be blinded to this reclassification.

You CAN'T join if...

  • Individuals who do not meet inclusion criteria,
  • Individuals with choreic movement disorders in the context of a negative test for the HD gene mutation.
  • For Community Controls: those individuals with a major central nervous system disorder will be excluded (e.g. stroke, Parkinson's disease, multiple sclerosis, etc.).

Participants under 18 may be eligible to participate (if they have juvenile-onset HD).

Locations

  • University of California - Irvine Medical Center accepting new patients
    IrvineCalifornia92697United States
  • University of California - Los Angeles accepting new patients
    Los AngelesCalifornia90095United States
  • University of California - Davis accepting new patients
    SacramentoCalifornia95817United States
  • University of California - San Diego accepting new patients
    San DiegoCalifornia92037United States
  • University of California - San Francisco accepting new patients
    San FranciscoCalifornia94158United States

Lead Scientists

  • Neal Hermanowicz (uci)
    Authored (or co-authored) 26 research publications
  • Susan Perlman (ucla)
  • Vicki Wheelock (ucdavis)
  • Jody Corey-Bloom (ucsd)
    Authored (or co-authored) 82 research publications
  • Michael Geschwind (ucsf)
    Dr. Geschwind received his M.D.and Ph.D. in neuroscience through the National Institutes of Health (NIH)-sponsored Medical Scientist Training Program (MSTP) at the Albert Einstein College of Medicine in New York.

Details

Status
accepting new patients
Start Date
Completion Date
(estimated)
Sponsor
CHDI Foundation, Inc.
ID
NCT01574053
Study Type
Observational [Patient Registry]
Last Updated