Adiposity and Iron Requirements in Pregnancy

NCT ID: NCT06425796

Last Updated: 2024-12-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

312 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-05-20

Study Completion Date

2026-01-19

Brief Summary

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This study aims to explore how body fat influences the response to either 25 or 50 mg of daily iron supplements during pregnancy. We will conduct a double-blind randomized controlled intervention study involving 312 pregnant women recruited from antenatal clinics in the Northern Trust Area. Participants will be randomly assigned to receive either 25 or 50 mg of iron per day from 12 weeks of pregnancy until delivery, using the Active Iron supplement brand. Blood samples will be collected at 12, 28 and 36 weeks gestation and umbilical cord blood will be collected at delivery. Anthropometric measurements will be taken at each visit, and participants will complete questionnaires on various aspects of health and lifestyle, mental health, gastrointestinal symptoms, and compliance.

Detailed Description

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The main aim of this study is to investigate the influence of adiposity on the difference in response to 25 or 50 mg of daily iron supplementation during pregnancy. The primary aim is to determine the influence of maternal adiposity on adjusted maternal ferritin concentrations in response to 25 mg or 50 mg iron supplementation in pregnancy. The secondary outcomes of this study include: investigating the impact of maternal body fat on various maternal iron biomarkers (such as haemoglobin, soluble transferrin receptor, hepcidin, transferrin saturation, and other haematological markers) in response to either 25 mg or 50 mg iron supplementation during pregnancy, evaluating changes in adjusted ferritin concentrations and other iron markers throughout pregnancy relative to the dosage of iron supplementation received, determining the effect of maternal body fat on neonatal iron biomarkers in response to maternal iron supplementation, assessing changes in markers of inflammation in response to iron supplementation during pregnancy, and examine changes in mental health scores in response to iron supplementation during pregnancy.

This is a double-blind randomised controlled intervention study, in which 312 pregnant women with singleton pregnancy, without current complications, aged ≥ 18 years and BMI ≥ 18.5 kg/m2 will be recruited. Participants who are taking multivitamins will be included. They will be asked to discontinue any current supplementation. Pregnant women with anaemia, iron deficiency, high risk of iron overload, history of bariatric surgery, who are planning home birth, are currently involved in another research study, and those who cannot speak or understand English language will be excluded.

Blood samples and anthropometric and body composition measurements will be taken at different points in the pregnancy (12, 28, 36 gestational weeks) and an umbilical cord blood sample at the time of birth. Blood concentrations of iron and inflammation markers will be analysed. General, dietary intake and lifestyle information will be collected, through a Health and Lifestyle questionnaire and a 4-day diary. Additionally, participants will complete a questionnaire about their mental health and gastrointestinal symptoms. The compliance of the supplementation will be evaluated at each timepoint. Additionally, participants will receive a telephone call to evaluate possible adverse effects and compliance of the supplementation between the timepoints (18, 24 and 32 weeks of gestation). In the event that a participant has been prescribed iron treatment, anaemia diagnosis at any time during pregnancy or the occurrence of any adverse outcome such as miscarriage, the participant will be withdrawn from the study. Electronic forms prepared in RedCap will be used to collect data.

Conditions

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Iron Deficiency Anemia of Pregnancy

Keywords

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Iron status Iron Supplements Pregnancy Anaemia Maternal obesity Maternal Overweight Body composition Ferritin Inflammation Mental Health Neonatal anaemia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Participants Investigators
Double Blind: two or more parties are unaware of the intervention assignment

Study Groups

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Iron 25

Iron 25 (total 25 mg/d of iron): 2 supplements of 12.5 mg of elemental iron + 1 multivitamin supplement;

Group Type ACTIVE_COMPARATOR

Adiposity and Iron Requirements in Pregnancy (ADIPREG)

Intervention Type DIETARY_SUPPLEMENT

Iron 25 arm will receive: two iron supplements containing 12.5 mg of elemental iron + 1 multivitamin supplement (they will receive a total of 3 supplements per day).

Iron 50 arm will receive: two 25 mg elemental iron supplements + 1 multivitamin supplement (they will receive a total of 3 supplements per day).

The multivitamin supplement will contain folic acid, vitamin B1, vitamin B2, vitamin B3, vitamin B5, vitamin B6, vitamin B12, vitamin C and vitamin D. In summary, each participant will receive 3 supplements per day and instructed to take the 3 supplements together, in the morning, with breakfast. Supplements will be given to the participants when they attend for their clinic appointment. The intervention will begin at 12 gestational weeks and continue until the baby is delivered.

IRON 50

Iron 50 (total 50 mg/d of iron): 2 supplements of 25 mg of elemental iron + 1 multivitamin supplement).

Group Type ACTIVE_COMPARATOR

Adiposity and Iron Requirements in Pregnancy (ADIPREG)

Intervention Type DIETARY_SUPPLEMENT

Iron 25 arm will receive: two iron supplements containing 12.5 mg of elemental iron + 1 multivitamin supplement (they will receive a total of 3 supplements per day).

Iron 50 arm will receive: two 25 mg elemental iron supplements + 1 multivitamin supplement (they will receive a total of 3 supplements per day).

The multivitamin supplement will contain folic acid, vitamin B1, vitamin B2, vitamin B3, vitamin B5, vitamin B6, vitamin B12, vitamin C and vitamin D. In summary, each participant will receive 3 supplements per day and instructed to take the 3 supplements together, in the morning, with breakfast. Supplements will be given to the participants when they attend for their clinic appointment. The intervention will begin at 12 gestational weeks and continue until the baby is delivered.

Interventions

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Adiposity and Iron Requirements in Pregnancy (ADIPREG)

Iron 25 arm will receive: two iron supplements containing 12.5 mg of elemental iron + 1 multivitamin supplement (they will receive a total of 3 supplements per day).

Iron 50 arm will receive: two 25 mg elemental iron supplements + 1 multivitamin supplement (they will receive a total of 3 supplements per day).

The multivitamin supplement will contain folic acid, vitamin B1, vitamin B2, vitamin B3, vitamin B5, vitamin B6, vitamin B12, vitamin C and vitamin D. In summary, each participant will receive 3 supplements per day and instructed to take the 3 supplements together, in the morning, with breakfast. Supplements will be given to the participants when they attend for their clinic appointment. The intervention will begin at 12 gestational weeks and continue until the baby is delivered.

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Age ≥ 18 years
* BMI ≥18.5 kg/m2
* Without current pregnancy complications (for example, severe bleeding, Diabetes Mellitus, hyperemesis gravidarum, ectopic and molar pregnancies)
* At least 12 Gestational Week
* Singleton pregnancy confirmed with the first ultrasound scan
* Participants who are currently taking multivitamins will be included. They will be asked to discontinue any current supplementation.

Exclusion Criteria

* Hb \<110 g/L
* SF \<30 μg/L
* High risk of iron overload (Hb \>150 g/L, transferrin saturation \>45% or SF\> 150 μg/L)
* Participants with history of haematological, renal, liver, autoimmune disorders, malabsorptive syndromes
* Participants with history of bariatric surgery
* Participants who take steroids or anti-inflammatory treatments or drugs that affect gut absorption (proton-pump inhibitors)
* Planned home births
* Participants currently involved in another research study
* Multiple pregnancy
* Participants who do not speak English
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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Solvotrin Therapeutics - Active Iron

UNKNOWN

Sponsor Role collaborator

National Health Service, United Kingdom

OTHER_GOV

Sponsor Role collaborator

University of Ulster

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Mary McCann, PhD

Role: STUDY_DIRECTOR

University of Ulster

Locations

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Causeway Hospital

Coleraine, Co Londonderry, United Kingdom

Site Status RECRUITING

Causeway Hospital

Coleraine, Co. Londonderry, United Kingdom

Site Status RECRUITING

Ulster University,Human Intervention Studies Unit,

Coleraine, Co. Londonderry, United Kingdom

Site Status RECRUITING

Countries

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United Kingdom

Central Contacts

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Mary T McCann, PhD

Role: CONTACT

Phone: +4402870123969

Email: [email protected]

Ruth Price, PhD

Role: CONTACT

Phone: +442870123878

Email: [email protected]

Facility Contacts

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Karen Rodgers, Senior Midwife

Role: primary

Dr Jonathan White, MBChB; MRCOG

Role: primary

Karen Rodgers, Senior Midwife

Role: backup

Ruth Price, PhD

Role: primary

Geraldine Horigan, PhD

Role: backup

Other Identifiers

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FCBMS-23-259

Identifier Type: -

Identifier Source: org_study_id