Brazilian pilot program tests chikungunya Vaccine's Real-World power
NCT ID NCT07347002
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study will track 1200 people in Brazil who received the VLA1553 chikungunya vaccine as part of a pilot program. Researchers will compare how many vaccinated and unvaccinated people get chikungunya to see if the vaccine works in everyday life. The goal is to understand the vaccine's real-world effectiveness.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
VLA1553 live-attenuated chikungunya vaccine
What this could lead to
If successful, this could confirm that the VLA1553 vaccine effectively prevents chikungunya in real-world conditions, supporting broader use.
What could go wrong
This is an observational study, not a controlled trial, so results may be influenced by other factors. The vaccine's effectiveness may vary by age or region.
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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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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Centro de Pesquisas Clínicas Universidade Federal Sergipe, Hospital e Maternidade São João de Deus
Laranjeiras, Sergipe, 49060-025, Brazil
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Fundação Faculdade Regional De Medicina De São José Do Rio Preto
São Pedro, São Paulo, 15090-000, Brazil
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Universidade Federal Do Ceará
Fortaleza, Ceará, 60430-160, Brazil
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Universidade Federal de Minas Gerais, CT Terapias Avançadas e Inovadoras
Belo Horizonte, Minas Gerais, 31270-901, Brazil