Twins and the Risk of Parkinson's Disease: A Clinical and Imaging Study

NCT ID: NCT00282802

Last Updated: 2009-07-02

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

250 participants

Study Classification

OBSERVATIONAL

Study Start Date

2001-04-30

Study Completion Date

2010-07-31

Brief Summary

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The purpose of this study is to examine the role of genetic and environmental factors in the cause of Parkinson's disease.

Detailed Description

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Parkinson's disease (PD) is a growing health problem in the elderly, and genetic factors may provide substantial clues toward eventual treatment and/or prevention of the disorder. The National Academy of Sciences/National Resource Council (NAS/NRC) World War II (WWII) Veteran Twins Cohort Registry is one of the few population-based groups of elderly twins. Previous studies in this group indicated that genetic factors were involved only in early-onset PD, however there was no follow-up to these studies.

The purpose of the "Twins and the Risk of PD" study is to follow-up previous studies and confirm the initial findings. In this study, investigators will use the NAS/NRC WWII Veteran Twin Cohort Registry to compare the concordance rates for PD in monozygotic and dizygotic twins-at least one of whom has PD.

The overall goal of this research is determine the contributions of genetic and environmental factors in the cause of PD.

The study will involve traditional clinical research methods, such as a clinical examination, as well as innovative imaging techniques, such as single photon emission computed tomography (SPECT). SPECT-a nuclear imaging test involving blood flow to tissue-is used to evaluate certain brain functions.

Findings from this study may help to set research priorities in PD, and to develop tools for early detection of the disorder.

Conditions

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Parkinson's Disease

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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1

National Academy of Sciences/National Resource Council (NAS/NRC) World War II Veteran Twins Cohort

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Participants will be recruited from a closed cohort-the National Academy of Sciences/National Resource Council (NAS/NRC) World War II Veteran Twins Cohort
Minimum Eligible Age

77 Years

Maximum Eligible Age

88 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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National Institute of Neurological Disorders and Stroke (NINDS)

NIH

Sponsor Role collaborator

The Parkinson's Institute

OTHER

Sponsor Role lead

Responsible Party

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The Parkinson's Institute

Principal Investigators

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Caroline M. Tanner, MD

Role: PRINCIPAL_INVESTIGATOR

The Parkinson's Institute

Locations

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The Parkinson's Institute, 675 Almanor Avene

Sunnyvale, California, United States

Site Status

Countries

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United States

Other Identifiers

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R01NS040467-01

Identifier Type: NIH

Identifier Source: secondary_id

View Link

R01NS040467

Identifier Type: NIH

Identifier Source: org_study_id

View Link

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