Taking iron every other day might be easier on the stomach during pregnancy
NCT ID NCT07356258
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether taking iron pills every other day causes fewer stomach problems than taking them daily in pregnant women. About 50 pregnant women who need iron will try an every-other-day schedule for a week, then daily for a week, and report any side effects. The goal is to find a more tolerable way to prevent anemia without upsetting the stomach.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 50 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Feb 2026
An estimate. Start dates often move.
- Expected to finish
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Jun 2026
An estimate. End dates often move.
- Lead sponsor
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A government agency
The lead sponsor is a government body.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Pregnant women attending our high-risk pregnancy clinics (in Bnai Zion medical center)
- Ages
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18 to 50 years
- Sex
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Female participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide 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: * Pregnant women aged 18-50 * Indication for oral iron treatment as determined by the treating physician, in accordance with standard clinical practice * Baseline iron store levels measured prior to initiation of oral iron therapy Exclusion Criteria: * Women taking ferrous sulfate 80 mg Tardiferon * Gastrointestinal diseases such as colitis * Women who received intravenous iron during pregnancy * Women who received blood transfusions during pregnancy * Women with anemia due to causes other than iron deficiency * History of bariatric surgery * Allergy to ferrous sulfate
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
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Bnai Zion medical center
Haifa, Israel
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Other studies related to the condition(s) this trial covers.