Gene Analysis of Parkinson's Disease

Status Completed

Clinical Trial Summary

The purposes of this study are to identify the gene or genes responsible for an inherited form of Parkinson's disease and learn more about how the disease develops.

In Parkinson's disease, a deficiency of a brain chemical called dopamine impairs the function of the part of the brain that controls movement. As a result, patients may have difficulty moving or they may have uncontrolled movements of their hands and fingers. Parkinson's disease usually occurs sporadically, with no known cause. In a few families, however, the disease seems to be inherited through a gene mutation (change). There is a 50-50 chance that a parent with the mutated gene will pass it on to a child. Children who do inherit the abnormal gene may or may not go on to actually develop Parkinson's disease-the relative chance of this happening is not known.

Individuals 18 years of age and older from families in which Parkinson's disease appears to be inherited may be eligible for this study. Participants will have their medical records reviewed, provide a personal and family medical history (by telephone or in person), and have a small blood sample (2 tablespoons) taken for genetic studies. The total time required for the study is about 1 to 2 hours.

Participants are encouraged to meet with a NIH investigator or with a genetics specialist in their local area before testing to talk about the possible implications for themselves and their families of the test results....

Clinical Trial Description

Mutational analysis in patients with Parkinson's disease and a positive family history will be undertaken in an effort to identify and better understand the function of defective genes that cause Parkinson's disease in these individuals. DNA from these individuals is an important resource for screening candidate genes for mutations, for confirming that genes identified by other approaches are altered in patients, and for defining the mutational spectrum in these genes (genotype/phenotype correlation).

Unrelated, anonymous normal individuals will serve as controls for sequence comparisons. Information about genotypes will not be communicated back to the individuals as part of this study. While mutational analysis will continue, no further participants will be recruited to this study. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00001643
Study type	Observational
Source	National Institutes of Health Clinical Center (CC)
Contact
Status	Completed
Phase	N/A
Start date	August 29, 1997

View Details

See also
Status	Clinical Trial	Phase
Completed	`NCT02915848` - Long-term Stability of LFP Recorded From the STN and the Effects of DBS
Recruiting	`NCT03648905` - Clinical Laboratory Evaluation of Chronic Autonomic Failure
Terminated	`NCT02688465` - Effect of an Apomorphine Pump on the Quality of Sleep in Parkinson's Disease Patients (POMPRENELLE).	Phase 4
Completed	`NCT05040048` - Taxonomy of Neurodegenerative Diseases : Observational Study in Alzheimer's Disease and Parkinson's Disease
Active, not recruiting	`NCT04006210` - Efficacy, Safety and Tolerability Study of ND0612 vs. Oral Immediate Release Levodopa/Carbidopa (IR-LD/CD) in Subjects With Parkinson's Disease Experiencing Motor Fluctuations	Phase 3
Completed	`NCT02562768` - A Study of LY3154207 in Healthy Participants and Participants With Parkinson's Disease	Phase 1
Completed	`NCT00105508` - Sarizotan HC1 in Patients With Parkinson's Disease Suffering From Treatment-associated Dyskinesia	Phase 3
Completed	`NCT00105521` - Sarizotan in Participants With Parkinson's Disease Suffering From Treatment Associated Dyskinesia	Phase 3
Recruiting	`NCT06002581` - Repetitive Transcranial Magnetic Stimulation(rTMS) Regulating Slow-wave to Delay the Progression of Parkinson's Disease	N/A
Completed	`NCT02236260` - Evaluation of the Benefit Provided by Acupuncture During a Surgery of Deep Brain Stimulation	N/A
Completed	`NCT00529724` - Body Weight Gain, Parkinson, Subthalamic Stimulation	Phase 2
Active, not recruiting	`NCT05699460` - Pre-Gene Therapy Study in Parkinson's Disease and Multiple System Atrophy
Completed	`NCT03703570` - A Study of KW-6356 in Patients With Parkinson's Disease on Treatment With Levodopa-containing Preparations	Phase 2
Completed	`NCT03462680` - GPR109A and Parkinson's Disease: Role of Niacin in Outcome Measures	N/A
Completed	`NCT02837172` - Diagnosis of PD and PD Progression Using DWI
Not yet recruiting	`NCT04046276` - Intensity of Aerobic Training and Neuroprotection in Parkinson's Disease	N/A
Recruiting	`NCT02952391` - Assessing Cholinergic Innervation in Parkinson's Disease Using the PET Imaging Marker [18F]Fluoroethoxybenzovesamicol	N/A
Active, not recruiting	`NCT02937324` - The CloudUPDRS Smartphone Software in Parkinson's Study.	N/A
Completed	`NCT02874274` - Vaccination Uptake (VAX) in PD	N/A
Terminated	`NCT02924194` - Deep Brain Stimulation of the nbM to Treat Mild Cognitive Impairment in Parkinson's Disease	N/A

Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.