Environmental Contaminants and Infant Development

April 13, 2015 updated by: National Institute of Environmental Health Sciences (NIEHS)
This study is designed to examine the effects of prenatal exposure to environmental contaminants on cognitive and behavioral development and physical growth in two groups of Inuit infants-one in Northern Quebec; the other in Greenland.

Study Overview

Status

Completed

Conditions

Detailed Description

Due to prevailing weather patterns and ocean currents, certain environmental contaminants are transported to the Arctic region. The Inuit are among the most heavily exposed populations on earth due to the prevalence of these contaminants in traditional foods that comprise a large portion of their diet. The contaminants assessed in this study include polychlorinated biphenyls (PCBs), methylmercury, selenium, organochlorine pesticides, and lead. These contaminants are measured in umbilical cord blood samples obtained at birth, milk samples obtained from breast-feeding mothers and, in the case of mercury, hair samples obtained from the mothers. Omega-3 and omega-6 fatty acids are also assessed in these samples to examine the degree to which these nutrients may protect against adverse effects attributable to these contaminants.

Study Type

Observational

Enrollment (Anticipated)

280

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

  • Canada
    • Quebec
      • Beauport, Quebec, Canada
        • Public Health Centre of Quebec

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

1 day to 1 day (Child)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

infant born during recruitment period to a mother who is a resident of Povungnituk, Inukjuak, and Kuujjuarapik, Quebec or Nuuk, Greenland

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

Collaborators and Investigators

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

Sponsor

National Institute of Environmental Health Sciences (NIEHS)

Collaborators

Health Canada
Danish Institute for Public Health
Indian and Northern Affairs, Canada

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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

January 1, 1997

Primary Completion (Actual)

August 1, 2011

Study Completion (Actual)

August 1, 2011

Study Registration Dates

First Submitted

March 30, 2001

First Submitted That Met QC Criteria

April 2, 2001

First Posted (Estimate)

April 3, 2001

Study Record Updates

Last Update Posted (Estimate)

April 14, 2015

Last Update Submitted That Met QC Criteria

April 13, 2015

Last Verified

April 1, 2015

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 7902-CP-001

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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