Fat Distribution and Glucose Metabolism in Williams Syndrome

NCT ID: NCT01864304

Last Updated: 2017-01-10

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

COMPLETED

Total Enrollment

24 participants

Study Classification

OBSERVATIONAL

Study Start Date

2013-12-31

Study Completion Date

2016-02-29

Brief Summary

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Williams Syndrome (WS) is a genetic syndrome with features that may include vascular stenoses, neuro-developmental changes, and a variety of endocrine and metabolic abnormalities, including impaired glucose metabolism and abnormal body composition. Approximately 75% of adults with WS have impaired glucose tolerance or diabetes on oral glucose tolerance testing (OGTT). In addition, clinical observations and preliminary data suggest increased overall body fat in these individuals, as well as a relative increase in fat deposition in the lower extremities. However, glucose and lipid metabolism in WS remain incompletely characterized. The purpose of the current study is to carefully describe glucose metabolism and lipid parameters in people with WS.

Detailed Description

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Conditions

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Williams Syndrome

Study Design

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Observational Model Type

COHORT

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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Williams Syndrome

Children and adults with Williams Syndrome

No interventions assigned to this group

Control Group

Controls will be recruited in 2 ways: 1) a gender matched and age- and BMI-similar control for each WS patient, and, 2) sibling controls when available

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

1. M or F age 14-70yo
2. Diagnosis of WS confirmed by FISH or chromosomal microarray (WS only)
3. Availability of a parent or guardian to participate in the consent process (all WS, and controls \<18yo)

Exclusion Criteria

1. History of weight loss surgery or liposuction
2. Use of weight-lowering drugs
3. Positive urine pregnancy test (females only)
4. Obesity or abnormal fat distribution due to a known secondary cause (except WS) such as Cushing syndrome, HIV-infection, etc.
5. Known diabetes will preclude administration of the OGTT but not participation in other aspects of the study.
Minimum Eligible Age

14 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Massachusetts General Hospital

OTHER

Sponsor Role lead

Responsible Party

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Takara Stanley, M.D.

Assistant Pediatrician

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Takara Stanley, MD

Role: PRINCIPAL_INVESTIGATOR

Massachusetts General Hospital

Locations

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Massachusetts General Hospital

Boston, Massachusetts, United States

Site Status

Countries

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United States

Other Identifiers

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2013P000068

Identifier Type: -

Identifier Source: org_study_id

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