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Could more iron in prenatal vitamins prevent anemia in pregnant women?

NCT ID NCT06079918

Prevention Sponsor: George Washington University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jul 14, 2026 · Last updated Jul 15, 2026 · Updated 1 time

Summary

This study compares different doses of iron in daily prenatal supplements to see which best prevents moderate to severe anemia in pregnant women. Pregnant women under 20 weeks gestation are randomly assigned to receive a supplement with 30 mg, 45 mg, or 60 mg of iron daily until delivery. The main goal is to measure how many women develop anemia in the third trimester.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
multiple micronutrient supplements with varying doses of elemental iron (30 mg, 45 mg, or 60 mg)
What this could lead to
If higher iron doses prove more effective, this could help prevent moderate to severe anemia in millions of pregnant women, especially in regions where anemia is common.
What could go wrong
This is a large trial, but results may not apply to all populations. Higher iron doses can cause side effects like nausea or constipation, and the benefit over standard doses may be small.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 3

Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.

Participants

About 6,381 people

The number the study aims to enrol. It can still change while the study runs.

Started

Mar 2025

Expected to finish

Jun 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Female participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Attending first ANC visit at study clinics * Pregnant women \< 20 weeks gestation by last menstrual period (LMP) * Aged ≥ 18 years old * Intending to stay in Dar es Salaam until 6 weeks post delivery * Provides informed consent Exclusion Criteria: * Severe anemia (defined as hemoglobin \< 8.5 g/dL per Tanzania standard of care) * Sickle cell disease (SS and SC) and hemoglobin C disease (CC) as tested by HemoTypeSC * Concurrently enrolled in another nutritional clinical trial * Pregnant women with disability or condition which would impair their ability to provide informed consent and complete study procedures.

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Conditions

The condition(s) this trial relates to.

anemia pregnancy disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Pregnancy related

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Muhimbili University of Health and Allied Sciences

    RECRUITING

    Dar es Salaam, Tanzania

More trials for these conditions

Other studies related to the condition(s) this trial covers.