Iron pills for babies: daily or weekly? new study has answers
NCT ID NCT06318858
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether giving iron supplements daily or weekly works better to prevent anemia in healthy Thai infants aged 6 to 12 months. A total of 287 babies were randomly assigned to receive iron daily or weekly for 3 months, then all switched to weekly for another 3 months. Researchers measured hemoglobin and ferritin levels to check iron status. The goal was to find a practical way to reduce anemia in this age group.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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287 people
The number who actually took part.
- Started
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Mar 2023
- Finished
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May 2025
- Lead sponsor
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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
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6 to 12 months
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Apparently healthy infant, aged 6 months ± 2 weeks * Having a birth weight between 2,500 and 4,000 grams * Being born full term (37 to 41 weeks of age + 6 days) * Having hemoglobin ≥ 10.5 g/dL * Being planned to breastfeed with complementary food and/or complementary foods with formula milk Exclusion Criteria: * Infants with chronic illnesses or thalassemia clinical signs such as anemia, enlarged liver, or spleen (if parental history suggests the child is at risk of developing a thalassemia disease that may not show clinical symptoms) * Previously or currently taking an iron supplement
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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.
Contacts and locations
Locations
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Samphran District Hospital
Sam Phran, Changwat Nakhon Pathom, 73110, Thailand
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Other studies related to the condition(s) this trial covers.
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