The impact of n-3 fatty acids supplementation on the content of lipids in the pregnant women and the fetus

ISRCTN ISRCTN36705743
DOI https://doi.org/10.1186/ISRCTN36705743
Protocol serial number -
Sponsor University of Mostar, School of Medicine
Funder Investigator initiated and funded
Submission date
25/10/2016
Registration date
09/11/2016
Last edited
27/11/2020
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Pregnancy and Childbirth
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
For women who plan to become pregnant, it is important that they eat a healthy diet and are well nourished before they conceive. This is beneficial both for the mother and also the developing fetus. A healthy diet is important. This includes omega-3 fatty acids such as eicosapentaenoic acid (EPA) and docosahexenoic acid (DHA); these are thought to be critical for the baby’s brain and eye development. The aim of this research is to investigate whether taking omega-3 dietary supplements during pregnancy increases the amount found in the women’s blood and also the blood supplying the fetus.

Who can participate?
Women pregnant with one baby who are a healthy weight.

What does the study involve?
Participants are randomly allocated to one of two groups. Those in group 1 take capsules containing 360 mg EPA (eicosapentanoic) and 240 mg DHA (docosahexanoic acid) every day during their pregnancy starting from the 14th week of gestation until delivery. Participants in group 2 do not take the supplements during pregnancy. At the time the baby is born, blood samples are taken from the mot er and also the umbilical cord to measure total fat (lipid) levels in the blood and also separated fat components, such as fatty acids, triacylglycerols and cholesterol.

What are the possible benefits and risks of participating?
Not provided at time of registration

Where is the study run from?
Department of Obstetrics and Gynecology School of Medicine Mostar (Bosnia and Herzegovina)

When is the study starting and how long is it expected to run for?
May 2013 to November 2017

Who is funding the study?
Investigator initiated and funded

Who is the main contact?
Dr Soldo Dragan
dragan.soldo3@tel.net.ba

Contact information

Dr Soldo Dragan
Scientific

Vukovarska 10 A
Mostar
88000
Bosnia and Herzegovina

ORCiD logoORCID ID 0000-0001-8486-3177
Phone +387 (0)63 321 386
Email dragan.soldo3@tel.net.ba

Study information

Primary study designInterventional
Study designRandomised controlled trial
Secondary study designRandomised controlled trial
Study type Participant information sheet
Scientific titleThe impact of EPA and DHA supplementation on the content of lipids in the pregnant women and the fetus
Study objectivesThe aim of this research was to present the contents and the concentration of free fatty acids in the group of pregnant women which used the supplementation of n-3 fatty acids and the control group of pregnant women which did not use such supplementation of n-3 fatty acids.
Ethics approval(s)Ethics Committee School of Medicine University of Mostar, 29/13/2013, ref. 2944/13
Health condition(s) or problem(s) studiedPregnancy
InterventionParticipants are randomly allocated to one of two groups:
1. Intervention group: Participants take capsules containing 360 mg EPA (eicosapentanoic) and 240 mg DHA (docosahexanoic acid) per day during pregnancy, from baseline (14th week of gestation) until delivery.
2. Control group: Participants did not used the supplementation of n-3 fatty acids during pregnancy.

Throughout the study, participants attend standard visits at Clinics. At delivery samples of blood from mother and umbilical cord are taken in order to measure levels of total lipids and separated lipid fractions: phospholipids, triacylglycerols, free fatty acids and cholesterol esters.
Intervention typeSupplement
Primary outcome measure(s)

1. Concentration of n-3 fatty acids in total serum lipids, measured using gas chromatography at the end of pregnancy/delivery
2. Concentration of n-3 fatty acids in umbilical vein serum, measured using gas chromatography at time of birth
3. Concentration of monounsaturated fatty acids in serum total lipids of umbilical vein serum, measured by gas chromatography at time of birth
4. Concentration of monounsaturated fatty acids in serum total lipids of the mother's serum, measured by gas chromatography at the end of pregnancy

Key secondary outcome measure(s)

Weight of mother, measured by weighing scale at recruitment, 20th week of gestation, 30th week of gestation and before delivery

Completion date30/11/2017

Eligibility

Participant type(s)Patient
Age groupAdult
SexFemale
Target sample size at registration87
Total final enrolment87
Key inclusion criteria1. Healthy pregnant women
2. Single pregnancy
2. BMI ( < 25kg/m2)
3. Provision of informed consent
Key exclusion criteria1. Pregnancy terminated as preterm delivery
2. Pregnant women with chronic illness
3. Pregnant women with gestational diabetes mellitus or preeclampsia
Date of first enrolment13/06/2013
Date of final enrolment30/11/2017

Locations

Countries of recruitment

  • Bosnia and Herzegovina

Study participating centre

Department of Obstetrics and Gynecology School of Medicine Mostar
Kralja Tvrtka, b.b.
Mostar
88000
Bosnia and Herzegovina

Results and Publications

Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
IPD sharing planPlease contact dragan.soldo3@tel.net.ba or josip.djelmis@zg.t-com.hr for access.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 25/02/2019 27/11/2020 Yes No
Participant information sheet Participant information sheet 11/11/2025 11/11/2025 No Yes

Editorial Notes

27/11/2020: Publication reference and total final enrolment added.
05/01/2017: The following changes were made to the trial record:
1. The recruitment end date was changed from 28/05/2016 to 30/11/2017.
2. The overall trial end date was changed from 28/09/2016 to 30/11/2017.