- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00082615
Neurophysiological Markers in Patients With Craniofacial Dystonia and Their Relatives
This study will use a technique called blink reflex to study and compare how the brain controls muscle movement in patients with craniofacial dystonia, their first-degree relatives, and healthy, normal volunteers. People with dystonia have sustained muscle contractions that cause twisting and repetitive movements or abnormal postures. In focal dystonia, this happens in one area of the body, such as the hand, neck, or face.
Three groups of people may be eligible for this study: 1) patients 18 years of age and older with craniofacial dystonia; 2) first-degree relatives of patients with craniofacial dystonia; and 3) normal volunteers matched in age to the patients. Candidates are screened with physical and neurological examinations.
Participants undergo a blink reflex study. Patients with dystonia who are receiving botulinum toxin injections must stop the medication 3 months before participating in the study and must stop any other dystonia medications, such as benzodiazepines and anticholinergics, for 12 hours before the study. For the blink reflex procedure, subjects are seated in a comfortable chair with their hands placed on a pillow on their lap. Metal electrodes are taped to the forehead for delivering small electrical shocks that feel like very brief pinpricks. Subjects receive 25 to 50 electrical stimuli, some as single shocks and some in pairs. The electrical activity of muscles that respond to the stimuli is recorded with a computer. The study takes from about 1 to 2 hours.
Study Overview
Status
Conditions
Detailed Description
Study Type
Enrollment
Contacts and Locations
Study Locations
-
-
Maryland
-
Bethesda, Maryland, United States, 20892
- National Institutes of Health Clinical Center, 9000 Rockville Pike
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
- INCLUSION CRITERIA:
Three groups of subjects shall be studied: 1) patients with craniofacial dystonia, 2) first degree relatives of patients with craniofacial dystonia, 3) age matched control group. The inclusion of the group of relatives will be valuable to study, as these individuals have shared similar environment backgrounds as patients but remain free of symptoms. Patients and their relatives 18 years or older will be enrolled through the Human Motor Control Clinic, NINDS, NIH under protocol 93-N-0202: "Diagnosis and Natural History Protocol for Patients with Different Neurological Conditions". Patients with dystonia, enrolled in Protocol 85-N-0195, "Efficacy and Pathophysiology of Botulinum Toxin for Treatment of Involuntary Movement Disorders' will also be eligible for participation in the study. Diagnosis of dystonia will rely on review of medical record, history, and clinical evaluation. Age matched volunteers over 18 years-old entered into the study must be free of neurological disease as determined by a standard physical and neurological examination.
INCLUSION CRITERIA FOR VIDEOTAPING:
Patients with idiopathic BSP or Meige-Syndrome (=BSP plus oromandibular dystonia), their first degree relatives and age matched volunteers
Age18 years or older
Eye blink rate at rest more than 27 per minute (patients only)
EXCLUSION CRITERIA:
Patients, their first degree relatives and normal volunteers with any significant medical or psychiatric illness, pregnancy, history of epilepsy, concurrent use of tricyclic antidepressants, neuroleptic agents, or any other licit or illicit drug that could affect brainstem excitability will not be eligible for this study. Subjects who have a pacemaker, an implanted medication pump, metal objects inside the eye or skull (for example, after brain surgery or a shrapnel would) or any recent (less than 3 months) brain lesions will not be included in this study. Patients who have received botulinum toxin injection less than three months prior to the day of testing will also be excluded.
EXCLUSION CRITERIA FOR VIDEOTAPING:
Other disease with involuntary blinking (Hemifacial spasm, Tic disorder, Tardive Dyskinesia, Blepharitis)
Taking the following medications: antidepressants, anxiolytics, anticonvulsants, antipsychotics, antiparkinson, hypnotics, stimulants, and/or antihistamines
Subject's objection to being videotaped while performing different activities
First degree relatives and age matched volunteers who are diagnosed with a neurological or psychiatric disease or medication that alter the blink frequency.
Study Plan
How is the study designed?
Collaborators and Investigators
Publications and helpful links
Study record dates
Study Major Dates
Study Start
Study Completion
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 040188
- 04-N-0188
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.
Clinical Trials on Dystonia
-
University of Texas Southwestern Medical CenterMassachusetts General HospitalRecruitingDystonia | Dystonia; Idiopathic | Dystonia, Primary | Dystonia, Secondary | Dystonia, Familial | Dystonia Disorder | Dystonias, Sporadic | Dystonia; Orofacial | Dystonia Lenticularis | Dystonia, Paroxysmal | Dystonia 6 | Dystonia 5 | Dystonia 8 | Dystonia 9 | Dystonia 19 | Dystonia 10 | Dystonia 11 | Dystonia 20 | Dystonia 12 | Dystonia... and other conditionsUnited States
-
Fondation Ophtalmologique Adolphe de RothschildCompletedCervical Dystonia, PrimaryFrance
-
Duke UniversityAmerican Academy of NeurologyNot yet recruitingIsolated Focal Hand DystoniaUnited States
-
University Hospital, MontpellierTerminatedSpasticity | Isolated Cervical Dystonia | Complex DystoniaFrance
-
National Institute of Neurological Disorders and...Active, not recruitingDystonia | Focal Dystonia | Musician's DystoniaUnited States
-
University of FloridaBachmann Strauss Dystonia & Parkinson Foundation, Inc.Completed
-
University Hospital, MontpellierTerminatedTardive Dystonia | Generalized Dystonia | Segmental DystoniaFrance
-
Institut National de la Santé Et de la Recherche...Assistance Publique - Hôpitaux de ParisNot yet recruiting
-
University of Colorado, DenverCompleted
-
National Institute of Neurological Disorders and...Completed