Piloting a Dietary Vitamin E Intervention During Pregnancy

January 13, 2014 updated by: University of Aberdeen

A Double Blind Randomised Placebo Controlled Pilot Study of a Dietary Soup Intervention During Pregnancy to Optimise Dietary Vitamin E Intake in Relation to Childhood Asthma.

In the last forty years the prevalence of asthma has increased in westernised countries. We have hypothesised that this increase may be a consequence of changing diet. Several birth cohort studies have now reported an association between reduced maternal vitamin E intake during pregnancy and childhood asthma.

However, it remains to be seen whether increasing maternal vitamin E intake during pregnancy reduces the risk of childhood asthma. We are planning a large placebo controlled trial in pregnant women, to investigate whether optimisation of dietary vitamin E intake to the recommended 15mg/day reduces the likelihood of childhood asthma. We believe that a dietary intervention using vitamin E in its natural form of food is more likely to be successful and acceptable than a vitamin E supplement. We have previously demonstrated than pregnant women can optimise their vitamin E intake using a personalised dietary plan with the help of a dietitian however this intervention was complex and could not be translated into everyday use. With commercial support we have developed a range of soups containing foods naturally rich in vitamin E designed to optimise maternal vitamin E intake to 15mg/day. A range of similar tasting and looking placebo soups has also been developed. In this study we will pilot a randomised controlled trial of the active and placebo soups to ascertain whether pregnant women are willing and able to optimise their vitamin E intake during pregnancy using the soups in order to reduce the risk of their child developing asthma. optimising maternal vitamin E intake during pregnancy.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

59

Phase

  • Not Applicable

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 Kingdom
      • Aberdeen, United Kingdom, AB25 2ZN
        • Aberdeen Maternity Hospital

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

16 years to 50 years (Child, Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • 10-12 weeks pregnant.
  • Routine low risk antenatal care.
  • A personal or partner history of asthma at anytime.
  • Able and willing to give informed consent to participate
  • Able and willing to participate in the study procedures

Exclusion Criteria:

  • Use of vitamin E supplements.
  • A history of diabetes, coagulopathies or use of anticoagulants, use of clopidogrel, cholestyramine, cyclosporin A, gemfibrozil, isoniazid, orlistat, anticonvulsants.
  • Any other significant disease or disorder which, in the opinion of the investigator, either puts the woman at risk because of participating in the study or may influence the results of the study, or the woman's ability to participate in the study.
  • Participating in another clinical study
  • Previous allocation of randomisation code in the study.

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

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Vitamin E enhanced diet
Range of three vitamin E enhanced soups (400g/tin) containing 18-20mg vitamin in natural food form. Three portions per week
Dietary supplement: Vitamin E enhanced soup
vitamin E enhancement is by virtue of the natural vitamin E content of the food ingredients
Placebo Comparator: Non-enhanced dietary intervention
Range of three similar looking and tasting soups (400g/tin) with naturally low (<3mg) vitamin E content. Three portions per week
Dietary supplement: Non-enhanced soups
Similar looking and tasting soups with low vitamin E content by virtue of food ingredients

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Participation of pregnant women in a randomised trial of enhanced and placebo soups from 12 weeks gestation until delivery.
Time Frame: 1 year
1 year

Secondary Outcome Measures

Outcome Measure
Time Frame
Dietary vitamin E intake during pregnancy.
Time Frame: 1 year
1 year
Lung function of new born infants.
Time Frame: 1 year
1 year

Other Outcome Measures

Outcome Measure
Time Frame
Biomarker of dietary compliance
Time Frame: 1 year
1 year

Collaborators and Investigators

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

Sponsor

University of Aberdeen

Investigators

  • Principal Investigator: Graham Devereux, MD, University of Aberdeen

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

December 1, 2012

Primary Completion (Actual)

June 1, 2013

Study Completion (Actual)

January 1, 2014

Study Registration Dates

First Submitted

August 7, 2012

First Submitted That Met QC Criteria

August 7, 2012

First Posted (Estimate)

August 9, 2012

Study Record Updates

Last Update Posted (Estimate)

January 14, 2014

Last Update Submitted That Met QC Criteria

January 13, 2014

Last Verified

January 1, 2014

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2/0036/12
  • 12/NS/0053 (Other Identifier: North of Scotland Research Ethics Service)

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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