Exploring how body fat affects iron supplement response during pregnancy
Official title: Impact of Maternal Adiposity on Maternal Iron Status and Requirements: a Randomised Intervention Study
Run by University of Ulster · NCT06425796 · Data updated 2026-11-12
This study is testing how body fat affects how well iron supplements work for pregnant women to see if it impacts their health and their baby's health.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | Women only |
| Enrollment | 312 (estimated) |
| Sponsor | University of Ulster Academic / other |
| Locations | 3 sites (Coleraine, Co Londonderry and 2 other locations) |
| Status | Recruiting |
| Started | May 20, 2024 |
| Main results expected | January 19, 2027 |
| Study ends | March 19, 2027 |
| Registry record updated | July 1, 2026 |
| Trial ID | NCT06425796 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are pregnant women aged 18 years and older with a BMI of 18.5 kg/m2 or higher and without current pregnancy complications.
✕Probably not a fit
Patients with existing anemia, high risk of iron overload, or those with certain medical histories may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This study investigates the impact of maternal adiposity on the effectiveness of daily iron supplementation during pregnancy. A total of 312 pregnant women will be randomly assigned to receive either 25 or 50 mg of iron supplements from 12 weeks of pregnancy until delivery. Blood samples will be collected at various stages of pregnancy to assess iron levels and other health markers. The study aims to understand how body fat influences iron absorption and overall maternal and neonatal health outcomes.
Why it matters
Potential benefit: If successful, this study could lead to improved iron supplementation strategies for pregnant women, enhancing maternal and neonatal health.
How similar studies have gone: Other studies have shown varying success in understanding the relationship between body fat and iron supplementation, but this specific approach is relatively novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria:- Pregnant women * 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
Where it's running
-
Causeway Hospital
Coleraine, Co Londonderry, United Kingdom Recruiting -
Causeway Hospital
Coleraine, Co. Londonderry, United Kingdom Recruiting -
Ulster University,Human Intervention Studies Unit,
Coleraine, Co. Londonderry, United Kingdom Recruiting
Study contacts
- Study coordinator: Mary T McCann, PhD
- Email: mt.mccann@ulster.ac.uk
- Phone: +4402870123969
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Non-invasive zinc protoporphyrin screening for iron deficiency in pregnancy
This project tests a handheld device that measures zinc protoporphyrin through the lower lip to detect iron deficiency in pregnant and recently postpartum people.
-
Investigating the effects of iron supplementation on glucose metabolism during pregnancy
This study is testing if taking iron supplements can help pregnant women with gestational diabetes and low iron levels manage their blood sugar better.
-
Understanding how polyphenols are processed in people with an ileostomy
Researchers will test how small amounts of plant polyphenols are absorbed and transformed in people living with an ileostomy.
-
BloodTrackR Usability and Concordance in RA
This study tests a home blood collection device and accompanying app for people with rheumatoid arthritis to see if they can collect usable samples at home and whether the results match standard blood tests.
-
Effect of a prebiotic drink with or without B-vitamins on gut microbes and wellbeing in older adults
A 12-week, randomized, double-blind study tests whether a chicory inulin drink, alone or with B-vitamins, can improve gut microbiota diversity, inflammation, and mental health in older adults who don’t get much B-vitamin–fortified food.
-
Gut-derived flavonoid compounds to support thinking and memory
This trial will test whether a polyphenol supplement that boosts gut-produced flavonoid metabolites can help slow cognitive decline in people aged 50 and older who are at increased risk for Alzheimer's.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.