Elevated Serum HDL in Four Generations of a Nashville Family

March 16, 2017 updated by: James Muldowney, Vanderbilt University Medical Center
The purpose of this study is to determine the genetic basis of one family's hereditary hyper-HDL-emia using multiple modalities such as linkage analysis and gene array.

Study Overview

Status

Terminated

Conditions

Intervention / Treatment

Detailed Description

HDL, or good cholesterol, has been shown to protect against heart attack and stroke. How HDL works as a protective agent is not well understood. There is a family that has 4 generations of living members with high HDL level. In the study, after consent is obtained, we will obtain 2 tablespoons of blood from all the family members in order to study their cholesterol levels and to obtain DNA in order to determine if there is a pattern of inheritance for this trait. We will also have them fill out a questionnaire about their medical history, diet and activity level as all of these can affect their HDL levels. In addition we will obtain additional blood (about 2 tablespoons) for plasma, white blood cells and also perform a biopsy to obtain skin cells from a matched pair of family members with and without the trait in order to determine which genes might be turned on and off because of this trait. We also wish to study other families who have members with high HDL cholesterol as well. These individuals will be identified from a core database.

Study Type

Observational

Enrollment (Actual)

3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Tennessee
      • Nashville, Tennessee, United States, 37232
        • Vanderbilt University Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

5 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Family

Description

Inclusion Criteria:

  • 26 living members of a family with HDL levels greater than 90mg/dl and several of whom will act as related age matched controls.
  • The investigators will also identify individuals in a lipid core database with HDL's of greater than 90mg/dl who have normal or low LDL and triglyceride levels and determine if they have normal or low LDL and triglyceride levels and determine if they have family members (parents or siblings) who also have high HDL cholesterol.

Exclusion Criteria:

  • Individuals who are not a member of the study family and individuals with high HDL's and elevated LDL and/or triglycerides.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Family-Based
  • Time Perspectives: Cross-Sectional

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
1
Single family cohort
Other: No Intervention
No intervention

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Vanderbilt University Medical Center

Investigators

  • Principal Investigator: Douglas E Vaughan, MD, Vanderbilt University Medical Center

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

June 1, 2004

Primary Completion (Actual)

June 1, 2006

Study Completion (Actual)

June 1, 2006

Study Registration Dates

First Submitted

September 4, 2007

First Submitted That Met QC Criteria

September 4, 2007

First Posted (Estimate)

September 5, 2007

Study Record Updates

Last Update Posted (Actual)

March 20, 2017

Last Update Submitted That Met QC Criteria

March 16, 2017

Last Verified

March 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 010535

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.

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