Clinical trial Recruiting at 32 sites Observational Ages 11 to 75

Collecting cerebrospinal fluid to aid in developing treatments for Huntington's disease

Official title: HDClarity: a Multi-site Cerebrospinal Fluid Collection Initiative to Facilitate Therapeutic Development for Huntington's Disease

Run by University College, London · NCT02855476 · Data updated 2026-11-12

This study is collecting spinal fluid and blood samples from people with Huntington's disease to help find better treatments for the condition.

More Huntington Disease trials

Quick facts

Study typeObservational
Ages11 Years to 75 Years
SexAll
Enrollment2500 (estimated)
SponsorUniversity College, London
Academic / other
Locations40 sites (Englewood, Colorado and 39 other locations)
StatusRecruiting
StartedJanuary 1, 2017
Main results expectedApril 30, 2027
Registry record updatedApril 27, 2026
Trial IDNCT02855476 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include individuals aged 18-75 with various stages of Huntington's disease or healthy controls who have undergone genetic testing.

Probably not a fit

Patients with significant comorbidities or those currently participating in drug trials may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

HDClarity is an observational initiative aimed at recruiting at least 2500 participants at various stages of Huntington's disease. The study focuses on collecting high-quality cerebrospinal fluid (CSF) and plasma samples to evaluate biomarkers and pathways relevant to the disease. Participants will attend annual visits for medical history assessments and biosample collection, with the option for additional sampling in the first year. This longitudinal approach allows for comprehensive data collection to facilitate therapeutic development for Huntington's disease.

Why it matters

Potential benefit: If successful, this initiative could lead to the identification of new biomarkers and therapeutic targets for Huntington's disease.

How similar studies have gone: Other studies focusing on biomarker collection for neurodegenerative diseases have shown promise, indicating that this approach may yield valuable insights.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age (18-75 years controls, early/late premanifest HD and incomplete penetrance HD, 21-75 years early/moderate/advanced manifest HD, ≥11 years juvenile HD)
* Enroll HD participant
* Capable of consenting or have a legal representative (parent/guardian for juveniles)
* Capable of complying with study procedures
* All participants other than family and community controls must have had a genetic test for HD

Exclusion Criteria:

* Drug trial within 30 days of any sampling visit
* Changes in medication (antidepressant, psychoactive, psychotropic or other medications or nutraceuticals used to treat HD within 30 days)
* Antiplatelet or anticoagulant therapy within 14 days
* Significant comorbidity
* Needle phobia, headache, spinal surgery / deformity
* Clotting or bruising disorder
* Screening blood test abnormalities \>10% outside normal range
* Drug / alcohol abuse
* Positive urine pregnancy test at any screening or sampling visit for females of childbearing potential
* Predictable non compliance or unwillingness
* Serious adverse event related to HDClarity study procedures or any lumbar puncture procedure performed for any reason in the previous 30 days

Where it's running

  • Cenexel
    Englewood, Colorado, United States
    Recruiting
  • Georgetown University
    Washington D.C., District of Columbia, United States
    Recruiting
  • John Hopkins University
    Baltimore, Maryland, United States
    Recruiting
  • Vanderbilt University Medical Center
    Nashville, Tennessee, United States
    Recruiting
  • University of Texas Health Science Center
    Houston, Texas, United States
    Recruiting
  • The Ottawa Hospital
    Ottawa, Ontario, Canada
    Recruiting
Show 34 more locations
  • North York General Hospital
    Toronto, Ontario, Canada
    Recruiting
  • Centre Hospitalier Universitaire d'Angers
    Angers, France
    Recruiting
  • Le Centre Hospitalier Universitaire de Bordeaux
    Bordeaux, France
    Recruiting
  • University Hospital Ulm
    Ulm, Baden-Wurttemberg, Germany
    Recruiting
  • Dresden University
    Dresden, Saxony, Germany
    Recruiting
  • St Josef And Elisabeth Hospital
    Bochum, Germany
    Recruiting
  • University Hospital of Erlangen
    Erlangen, Germany
    Recruiting
  • George Huntington Institute
    Münster, Germany
    Recruiting
  • Kbo-Isar-Amper-Klinikum Taufkirchen (Vils)
    Taufkirchen, Germany
    Recruiting
  • Lega Italiana Ricera Huntington
    Rome, Italy
    Recruiting
  • The University of Auckland
    Grafton, Auckland, New Zealand
    Recruiting
  • NZ Brain Research Institute
    Christchurch, Canterbury, New Zealand
    Recruiting
  • Gulbenkian Institute of Molecular Medicine
    Lisbon, Portugal
    Recruiting
  • Hospital de Sant Pau
    Barcelona, Spain
    Recruiting
  • Ramón y Cajal Universitary Hospital
    Madrid, Spain
    Recruiting
  • Royal Devon & Exeter NHS Foundation Trust
    Exeter, Devon, United Kingdom
    Recruiting
  • Glasgow Clinical Research Facility
    Glasgow, Scotland, United Kingdom
    Recruiting
  • Birmingham Huntingtons Disease Clinic
    Birmingham, West Midlands, United Kingdom
    Recruiting
  • Cambridge University Hospitals NHS Foundation Trust
    Cambridge, United Kingdom
    Recruiting
  • Cardiff University
    Cardiff, United Kingdom
    Recruiting
  • Leeds Teaching Hospital Trust
    Leeds, United Kingdom
    Recruiting
  • The Walton Centre NHS Foundation Trust
    Liverpool, United Kingdom
    Recruiting
  • University College London Hospitals NHS Foundation Trust
    London, United Kingdom
    Recruiting
  • St George's University Of London
    London, United Kingdom
    Recruiting
  • Oxford University Hospitals NHS Foundation Trust
    Oxford, United Kingdom
    Recruiting
  • University Hospitals Plymouth NHS Trust
    Plymouth, United Kingdom
    Recruiting
  • Wake Forest University
    Winston-Salem, North Carolina, United States
    Completed
  • University of British Columbia, The Centre for Huntingtons Disease
    Vancouver, British Columbia, Canada
    Active not recruiting
  • Centre for Movement Disorders
    Toronto, Ontario, Canada
    Completed
  • Fondazione I.R.C.C.S. Istituto Neurologico Carlo Besta
    Milan, Italy
    Active not recruiting
  • Institute of Psychiatry and Neurology
    Warsaw, Poland
    Active not recruiting
  • Cruces University Hospital
    Bilbao, Biscay, Spain
    Active not recruiting
  • North Bristol NHS Trust
    Bristol, United Kingdom
    Active not recruiting
  • Fife Health Board - Whyteman's Brae Hospital
    Kirkcaldy, United Kingdom
    Active not recruiting

Study contacts

  • Principal investigator: Edward J Wild, MA, MB BChir, MRCP, PhD — University College, London
  • Study coordinator: Katarzyna Schubert, PhD
  • Email: hdclarity-cc@enroll-hd.org

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.