Could iron pills make vaccines work better?
NCT ID NCT05919472
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looked at whether giving oral iron supplements to iron-deficient women in Kenya before or at the same time as vaccination improves their immune response. 180 women received iron either before or with three vaccines (COVID-19, meningitis, and typhoid), or a placebo. The goal was to see if iron timing affects antibody levels. Results are not yet available, but the study aims to find a simple way to help vaccines work better in undernourished populations.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
oral iron supplements (ferrous sulfate)
What this could lead to
If it works, this could point toward a simple way to improve vaccine effectiveness in iron-deficient populations.
What could go wrong
This is a small, completed study focused on immune markers, not disease prevention. Results may not apply broadly or lead to immediate changes in practice.
Disclaimer
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This is a summary of
the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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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
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Locations
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Msambweni County Referral Hospital
Msambweni, 80404, Kenya