Pregnant women get H1N1 vaccine in new safety trial
NCT ID NCT01024400
First seen Jan 07, 2026 · Last updated Jun 23, 2026 · Updated 28 times
Summary
This phase 2 study tested a non-adjuvanted H1N1 flu vaccine in 110 pregnant women to see if it is safe and triggers a good immune response. Participants received two doses of the vaccine and were monitored for side effects. The goal is to protect both mothers and their babies from the flu.
Disclaimer
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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.
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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Contacts and locations
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Locations
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CHU de Besançon-Hôpital Saint-Jacques
Besançon, 25030, France
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Groupe hospitalier Cochin Saint Vincent de Paul
Paris, 75679, France
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Hôpital Antoine Béclère
Clamart, 92141, France
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Hôpital Robert Debré
Paris, 75935, France
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Hôpital Sud de Rennes
Rennes, 35056, France
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
Non-adjuvanted H1N1 influenza vaccine
What this could lead to
If successful, this could show that the H1N1 flu vaccine is safe and effective for pregnant women, helping protect both mother and baby during flu season.
What could go wrong
This is a small, early-phase study (phase 2) with only 110 participants, so results may not apply to all pregnant women. The vaccine may not produce a strong enough immune response or could cause side effects.
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.