New meningitis vaccine shows promise in vietnam trial
NCT ID NCT06228586
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study tested a single shot of the MenACYW conjugate vaccine (MenQuadfi™) in 447 healthy people aged 12 months and older in Vietnam. The goal was to see how well the vaccine triggers antibodies against four types of meningococcal bacteria and to check for side effects. Participants were followed for about a month after vaccination.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- MenACYW conjugate vaccine (MenQuadfi™)
- What this could lead to
- If successful, this vaccine could help protect people in Vietnam from meningococcal disease caused by four common serogroups.
- What could go wrong
- This is a completed Phase 3 trial, but results are not yet published. The vaccine may not produce strong enough immunity in all age groups, and side effects like injection site reactions or fever are possible.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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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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Investigational Site Number : 7040001
Hanoi, Vietnam
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Investigational Site Number : 7040002
Thái Bình, 410000, Vietnam
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Investigational Site Number : 7040003
Thái Bình, 70000, Vietnam
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Investigational Site Number : 7040004
Thái Bình, 70000, Vietnam
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