Condition category
Pregnancy and Childbirth
Date applied
13/02/2013
Date assigned
15/05/2013
Last edited
07/05/2015
Prospective/Retrospective
Retrospectively registered
Overall trial status
Ongoing
Recruitment status
No longer recruiting

Plain English Summary

Background and study aims
It is well established that folic acid supplementation in the early stages of pregnancy can reduce the risk of neural tube defects and some other birth defects. Observational research also suggests that maternal folic acid (folate) intake may have a long-term effect on the central nervous system development of the offspring; however, the evidence so far is inconclusive. The aim of this study is to investigate the effect of folic acid supplementation during pregnancy on growth, nervous system development and behaviour of the offspring aged 6.

Who can participate?
Mother-child pairs will be recruited from a previously conducted randomized controlled trial which investigated the effect of folic acid supplementation (400µg/d) in the second and third trimester of pregnancy (FASSTT) study (REC reference number: 05/Q2008/21).

What does the study involve?
For the purpose of this investigation mother-child pairs will be asked to attend a one-off appointment at the Human Intervention Suite (HISU) at the University of Ulster, Coleraine. The study will be explained to the participants and any queries answered. Informed consent will be obtained from both the mother and the child. The mother will be asked to complete the following questionnaires; Health and Lifestyle, Parenting Style, The Trait Emotional Intelligence Questionnaire and a Strengths and Difficulties questionnaire. Each child will undergo a cognitive assessment using the Wechsler Preschool and Primary Scale of Intelligence test (3rd UK edition). Anthropometric measurements of the child will be taken by using standard equipment; weight (digital weighing scales), height (stadiometer), waist circumference (non- stretchable tape) and body fat (portable bioelectrical impedance scales). In addition, a buccal swab sample (sample of cheek cells) of each child will be taken for DNA methylation analysis.

What are the possible benefits and risks of participating?
There is no direct proven benefit; this study will lead to a greater understanding of the impact of folate in pregnancy on child development. By taking part in the study the mother will find out how their child performs on the cognitive assessment. The results of this study will help to generate specific recommendations for folate intake and supplement usage in pregnancy for better health of the mother and the child. In the unlikely event that the child shows results outside the normal range, the mother’s permission will be asked to refer the child to the consultant paediatrician involved in this study.

Where is the study run from?
The study will be run from the University of Ulster, Coleraine.

When is the study starting and how long is it expected to run for?
The study has already begun: recruitment of study participants started in January 2013. Recruitment is expected to finish in February 2014.

Who is funding the study?
This study is funded by NICHE (Northern Ireland Centre for Food and Health) and DEL (Department of Education and Learning).

Who is the main contact?
The main researcher working on this study is Catherine McGarel (PhD student researcher; mcgarel-c@email.ulster.ac.uk)

Trial website

Contact information

Type

Scientific

Primary contact

Dr Kristina Pentieva

ORCID ID

Contact details

School of Biomedical Sciences
University of Ulster
Cromore Road
Coleraine
Coleraine
BT52 1SA
United Kingdom
-
k.pentieva@ulster.ac.uk

Additional identifiers

EudraCT number

ClinicalTrials.gov number

Protocol/serial number

N/A

Study information

Scientific title

The effect of folic acid supplementation during pregnancy on the growth, cognitive development and behaviour of 6 year old children: a follow-up investigation of children of FASSTT study participants

Acronym

Study hypothesis

It is hypothesised that folic acid supplementation during the second and third trimesters of pregnancy may have significant effects on the cognitive development, behaviour and growth.
This is a follow up study on the participants of a previous randomised controlled trial and their offspring. This previous trial took place in 2005-2007 as part of an on-going collaborative research project between the University of Ulster and the Causeway Hospital, Northern Health and Social Services Trust. It investigated the effect of 'Folic Acid Supplementation in the Second and Third Trimester' and the health outcomes of the mother and new-born (FASSTT study: REC reference number: 05/Q2008/21). A total of 125 women completed the FASSTT study.

Ethics approval

1. Office of Research Ethics Committees in Northern Ireland (ORECNI), 25/08/2012
2. Northern Health and Social Care Trust, 28/12/2012

Study design

Follow-up study on the participants of a previous randomised controlled trial and their offspring

Primary study design

Interventional

Secondary study design

Randomised controlled trial

Trial setting

Other

Trial type

Other

Patient information sheet

Not available in web format, please contact mcgarel-c@email.ulster.ac.uk to request a patient information sheet

Condition

Folic acid supplementation in pregnancy

Intervention

In 2005/2007 a randomised controlled trial investigating the effect of Folic Acid Supplementation during the Second and Third Trimester (FASSTT) and the health outcomes of the mother and newborn was conducted. Healthy pregnant women aged 18-35 years, who have taken folic acid supplementation during their first trimester of pregnancy, were recruited from antenatal clinics of the Causeway Hospital, Coleraine. At the end of the first trimester, women willing to take part were randomly assigned to take placebo or 400ug/d of folic acid until the end of the pregnancy. Blood samples were collected before the intervention and at the 36th gestational week.

Intervention type

Supplement

Phase

Drug names

Primary outcome measures

To determine the effect of folic acid supplementation during pregnancy on cognitive developement of the offspring aged 6 years. Each child will undergo a cognitive assessment at approximately 6 years of age using the Wechsler Preschool and Primary School of Intelligence test, 3rd UK edition (WPPSI-III). The WPPSI-III is composed of a battery of subtests, sampling a broad spectrum of behaviour.

Secondary outcome measures

To investigate the effect of folic acid supplementation during pregnancy on the offspring's growth, behaviour and DNA methylation.

Anthropometric measurements of the child will be taken by using standard equipment: weight (digital weighing scales), height (stadiometer), waist circumference (non stretchable tape measure) and body fatness (portable bioelectrical impedance scales). In addition, a buccal swab sample of each child will be taken for DNA methylation analysis.

Overall trial start date

01/06/2012

Overall trial end date

31/12/2017

Reason abandoned

Eligibility

Participant inclusion criteria

Woman who participanted in a previous randomised controlled trial (FASSTT study, REC reference: 05/Q2008/21) and their children

Participant type

Patient

Age group

Adult

Gender

Female

Target number of participants

125

Participant exclusion criteria

1. Any child who has a severe current health problem or disability with impact on cognitive development (primary outcome measure)
2. Any child whose informed written consent cannot be obtained from the parent/guardian
3. Any child who refuses to have the measurements taken

Recruitment start date

01/01/2013

Recruitment end date

01/02/2014

Locations

Countries of recruitment

United Kingdom

Trial participating centre

University of Ulster
Coleraine
BT52 1SA
United Kingdom

Sponsor information

Organisation

University of Ulster (UK)

Sponsor details

c/o Nick Curry
Shore Road
Newtonabbey
Co.Antrim
Belfast
BT37 0QB
United Kingdom
+44 (0)28 9036 6234
n.curry@ulster.ac.uk

Sponsor type

University/education

Website

http://www.ulster.ac.uk

Funders

Funder type

Government

Funder name

Northern Ireland Centre for Food and Health (NICHE) (UK)

Alternative name(s)

Funding Body Type

Funding Body Subtype

Location

Funder name

Department of Education and Learning (DEL) (UK) - PhD studentship

Alternative name(s)

Funding Body Type

Funding Body Subtype

Location

Results and Publications

Publication and dissemination plan

Not provided at time of registration

Intention to publish date

Participant level data

Not provided at time of registration

Results - basic reporting

Publication summary

Publication citations

Additional files

Editorial Notes