Environmental Polymorphisms Registry Health and Exposures Survey
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|ClinicalTrials.gov Identifier: NCT01688986|
Recruitment Status : Completed
First Posted : September 20, 2012
Last Update Posted : October 6, 2017
|First Submitted Date||September 14, 2012|
|First Posted Date||September 20, 2012|
|Last Update Posted Date||October 6, 2017|
|Study Start Date||August 25, 2012|
|Primary Completion Date||Not Provided|
|Current Primary Outcome Measures||Not Provided|
|Original Primary Outcome Measures||Not Provided|
|Change History||Complete list of historical versions of study NCT01688986 on ClinicalTrials.gov Archive Site|
|Current Secondary Outcome Measures||Not Provided|
|Original Secondary Outcome Measures||Not Provided|
|Current Other Outcome Measures||Not Provided|
|Original Other Outcome Measures||Not Provided|
|Brief Title||Environmental Polymorphisms Registry Health and Exposures Survey|
|Official Title||Environmental Polymorphisms Registry Health and Exposures Survey|
The Environmental Polymorphisms Registry (EPR) Health and Exposure Survey is designed to gather health, family history of disease, environmental exposures and lifestyle data on adult EPR subjects. The EPR is a registry established to collect and store DNA samples from 20,000 volunteers from North Carolina and to serve as a resource to scientist investigating genotype-driven translational research of chronic conditions. Under this new protocol, we will administer a health and exposures survey to all EPR subjects. The information collected in the survey will be used to better characterize the EPR population thus making it more useful to NIEHS researchers. The survey contains approximately 200 questions. Data from the survey will help researchers develop hypotheses, design follow-up studies, and select appropriate subjects.
The survey will be administered to EPR subjects using a modified version of the Dillman Total Design Method (TDM) for surveys. This method requires following specific time-dependent steps for survey administration that incorporate both self- and phone administration and other types of phone and mail contact. The goal of TDM is to maximize subject response rates.
The Environmental Polymorphisms Registry (EPR) Health and Exposure Survey is designed to collect health, family history of disease, environmental exposures and lifestyle data on EPR participants. The EPR was established to collect and store DNA specimens from 20,000 participants and to serve as a resource for scientists investigating genotype-driven translational research of chronic health conditions. Under this protocol, we will administer the approximately 200 question Health and Exposure Survey to EPR participants. The information will be used to better characterize the EPR population, thus making it more useful in answering research questions related to gene-environment interactions. Data from the survey will help researchers to advance clinical research by developing new ways of preventing, diagnosing, and treating common diseases such as cardiovascular disease, asthma, and diabetes.
During Phases I and II, the survey was administered to EPR participants using a modified version of the Dillman Total Design Method (TDM) for surveys. This method requires following specific steps for survey administration that incorporate web-based, paper and phone administration. The rationale for using the TDM is to maximize participant response rates. During Phase III, the survey may be distributed to new EPR participants (e.g., those who were not enrolled in the EPR at the time of the Phase I and II survey administrations) for self-administration at the time of enrollment.
Investigators may select and contact participants for follow-up studies based upon health, exposure, or disease status information; this includes responses to the EPR Health and Exposure Survey. Participation in follow-up studies is completely voluntary. Participants can decide at the time they are contacted if they would like to enroll in the follow-up study. Their decision whether or not to participate in a follow-up study will not affect their participation in the EPR.
|Study Design||Observational Model: Cohort
Time Perspective: Retrospective
|Target Follow-Up Duration||Not Provided|
|Sampling Method||Not Provided|
|Study Population||Not Provided|
|Study Groups/Cohorts||Not Provided|
|Publications *||Not Provided|
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
|Original Estimated Enrollment
|Study Completion Date||November 22, 2016|
|Primary Completion Date||Not Provided|
There are no clinical exclusion criteria for this Survey. All subjects will be administered the Survey regardless of having clinical conditions.
|Ages||18 Years and older (Adult, Senior)|
|Accepts Healthy Volunteers||Yes|
|Contacts||Contact information is only displayed when the study is recruiting subjects|
|Listed Location Countries||United States|
|Removed Location Countries|
|Other Study ID Numbers||120194
|Has Data Monitoring Committee||Not Provided|
|U.S. FDA-regulated Product||Not Provided|
|IPD Sharing Statement||Not Provided|
|Responsible Party||National Institutes of Health Clinical Center (CC) ( National Institute of Environmental Health Sciences (NIEHS) )|
|Study Sponsor||National Institute of Environmental Health Sciences (NIEHS)|
|PRS Account||National Institutes of Health Clinical Center (CC)|
|Verification Date||November 22, 2016|