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Protective Genetic Factors Against Neurological Diseases

Protective Genetic Factors Against Neurological Diseases

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03914599
Enrollment
124
Registered
2019-04-16
Start date
2019-04-15
Completion date
2022-07-11
Last updated
2022-07-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Control, Neurological Disorder

Brief summary

NIH Precision Medicine Initiative, started in May 2018, will enroll one million people through an online portal. It hopes to identify genetic variants affecting a variety of human phenotypic outcomes. A giant set of data like this may enable an association of genetic variants with a certain phenotype. However, the association is often compromised due to the collection of phenotypic data that is not well controlled or standardized creating noisy data. These phenotypic noises can be largely eliminated in clinical studies with stringent criteria and standardization of outcome measurements. In this study, by looking mainly at genetic information and nerve conduction speed, we hope to eliminate the extra noises in the data set. Eliminating the extra noises should allow us to be able to determine if there are genetic differences between neurological disorders and healthy controls, and if these genetic differences can be attributed to the speed of the nerve conduction.

Interventions

None listed

Sponsors

Wayne State University
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 100 Years
Healthy volunteers
Yes

Inclusion criteria

1. Diagnosis of a neurological disorder - Inherited Peripheral Neuropathy, Charcot Marie Tooth, Multiple Sclerosis, or Parkinson's Disease 2. Healthy volunteers with no history of medical conditions known to afflict the nervous system will be recruited as normal controls. 3. Age 18-100 (Inclusive) 4. Able to undergo MRI 5. Medically Stable

Exclusion criteria

1. Any subject unwilling to undergo genetic testing (DNA sampling) 2. Any subjects with history of peripheral nerve diseases or conditions known to affect the CNS, such as diabetes, stroke, thyroid disease, chemotherapy, renal failure, etc. Note: This study holds no additional risk for pregnant women and they will not be excluded.

Design outcomes

Primary

MeasureTime frameDescription
Association of human genetic variants with the fastest conduction speed in normal controls5 yearsnerve conduction velocity as measured by electromyogram machine
The cluster of genetic variants associated with the fastest conduction velocity in normal controls versus those altered in patients with neurological diseases will be characterized5 yearsnerve conduction velocity and neurological disability scores as assessed by Visser Neuropathy Score ranging from 0-68 with higher score indicating more severe disabilities.
To test if the genetic variants associated with the fastest CV in the PNS protect some patients with CMT1A from developing severe disabilities5 yearsneurological disability scores as assessed by Visser Neuropathy Score ranging from 0-68 with higher score indicating more severe disabilities.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026