Could iodine in pregnancy boost baby brainpower?
NCT ID NCT01049659
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at whether giving iodine supplements to pregnant women helps their children's brain development. Researchers tested 85 children at age 2 using a standard developmental assessment. The goal was to see if iodine, which is often low in French diets, makes a difference.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- iodine supplement
- What this could lead to
- If successful, this could show that iodine supplements during pregnancy improve children's brain development.
- What could go wrong
- This is a small, completed study with only 85 participants. Results may not apply to all populations, and the effect may be small or absent.
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
-
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
-
85 people
The number who actually took part.
- Start date
-
Feb 2010
- Finished
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Jun 2011
- 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
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23 to 25 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.
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: * children which mother were included in the precedent protocol(pregnancy vitamins with or without iodine) Exclusion Criteria: * children of more of 25 months old * children with acute pathology * children with chronic pathology
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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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Endocrinology Department, Nice University Hospital
Nice, 06000, France
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