Completed

NMDA-Receptor Blockade in Huntington's Chorea

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What is being tested

Data Collection

Who is being recruted

Basal Ganglia Diseases+16

+ Mental Disorders

+ Brain Diseases

See all eligibility criteria
How is the trial designed

Treatment Study

Phase 2
Interventional
Study Start: April 1999
See protocol details

Summary

Principal SponsorNational Institute of Neurological Disorders and Stroke (NINDS)
Last updated: January 27, 2026
Sourced from a government-validated database.Claim as a partner

Study start date: April 1, 1999

Actual date on which the first participant was enrolled.

The objective of this study is to evaluate the acute effects of the putative NMDA-receptor antagonist amantadine on chorea of patients with Huntington's disease (HD). Participants in this study will have mild to moderate HD associated with chorea.

Official TitleNMDA-Receptor Blockade in Huntington's Chorea
NCT00001930
Principal SponsorNational Institute of Neurological Disorders and Stroke (NINDS)
Last updated: January 27, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

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

25 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Treatment Study

These studies test new ways to treat a disease, condition, or health issue. The goal is to see if a new drug, therapy, or approach works better or has fewer side effects than existing options.

Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria

Any sex

Biological sex of participants that are eligible to enroll.

Healthy volunteers not allowed

If individuals who are healthy and do not have the condition being studied can participate.

Conditions

Pathology

Basal Ganglia DiseasesMental DisordersBrain DiseasesCentral Nervous System DiseasesChoreaCognition DisordersDementiaHuntington DiseaseMovement DisordersCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesNervous System DiseasesNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsNeurodegenerative DiseasesNeurocognitive DisordersHeredodegenerative Disorders, Nervous SystemDyskinesiasGenetic Diseases, Inborn

Criteria

All patients will carry a diagnosis of Huntington's disease confirmed by DNA testing. Patients will have mild to moderate disease with associated significant chorea. Ability to comply with study requirements and to report on their condition by telephone. Males and females between the ages of 18 and 82. No patients with the presence or history of any medical condition that can reasonably be expected to subject the patient to unwarranted risk. No patients with renal impairment (serum creatinine exceeding the upper limit of normal). No patients with a history of intolerance to previous exposure to amantadine. No patients with an MMSE of less than 18/30. No patients receiving other anti-chorea therapies (such as Haldol). Those receiving other anti-chorea therapies must stop taking these medications for at least 4 weeks prior to the study to be eligible. No pregnant women. Patients must practice effective means of birth control.

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has 1 location

Suspended

National Institute of Neurological Disorders and Stroke (NINDS)

Bethesda, United StatesOpen National Institute of Neurological Disorders and Stroke (NINDS) in Google Maps
CompletedOne Study Center