Clinical trial Recruiting at 1 site Interventional Ages 18 to 45 Women only

Investigating how oral iron doses affect serum ferritin levels in iron-deficient women

Official title: Assessing the Immediate Increase in Serum Ferritin After Oral Iron Doses: an Experimental Study in Iron-deficient Women

Run by Swiss Federal Institute of Technology · NCT06851130 · Data updated 2026-11-12

This study tests how different doses of iron supplements affect iron levels in women aged 18 to 45 who have low iron but are not anemic.

More Iron Deficiency Anemia trials

Quick facts

Study typeInterventional
Ages18 Years to 45 Years
SexWomen only
Enrollment120 (estimated)
SponsorSwiss Federal Institute of Technology
Academic / other
Locations1 site (Zurich, Canton of Zurich)
StatusRecruiting
StartedFebruary 25, 2025
Main results expectedDecember 31, 2025
Study endsDecember 31, 2025
Registry record updatedMay 20, 2025
Trial IDNCT06851130 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are women aged 18 to 45 with low serum ferritin levels and no anemia.

Probably not a fit

Patients with chronic diseases, recent blood loss, or those who are pregnant or breastfeeding 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 examines the immediate effects of oral iron supplementation on serum ferritin levels in women with low iron stores but no anemia. Participants will receive either 80 mg or 160 mg of ferrous sulfate daily for two months to assess how these doses influence serum ferritin levels over time. The goal is to understand the acute changes in ferritin levels to improve monitoring of iron status during supplementation. The study focuses on women aged 18 to 45 with specific eligibility criteria to ensure accurate results.

Why it matters

Potential benefit: If successful, this study could lead to improved guidelines for monitoring iron supplementation in women with iron deficiency.

How similar studies have gone: While studies on iron supplementation exist, this specific investigation into acute serum ferritin response is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Low iron stores (SF levels \< 30 µg/L),
* no anemia (Hb \> 120 g/L)
* no inflammation (CRP \< 5 mg/L)
* 18 to 45 years old.
* Body weight \<70 kg
* Normal body Mass Index (18.5-26.5 kg/m2)

Exclusion Criteria:

* Any chronic or acute disease
* Consumption of mineral and vitamin supplements since screening and over the study period
* Blood transfusion, blood donation or significant blood loss over the past 4 months,
* Pregnant or breastfeeding,
* Continuous/long-term use of medication during the whole studies (except for contraceptives)
* Therapeutic iron infusion over the past 6 months,
* Known hypersensitivity or allergy to iron supplements,
* Intention to become pregnant over the course of the study

Where it's running

  • Laboratory of Nutrition and Metabolic Epigenetics
    Zurich, Canton of Zurich, Switzerland
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.