Brazilian flu vaccine shows promise in Head-to-Head trial
NCT ID NCT03777163
First seen May 17, 2026 · Last updated May 17, 2026
Summary
This study tested whether a new seasonal flu vaccine made by Butantan Institute works as well and is as safe as a standard Sanofi vaccine. 632 healthy adults in Brazil received one of the two shots. Researchers measured immune response and tracked side effects like pain, fever, and swelling for three weeks. The goal was to see if the Butantan vaccine is a good alternative for flu prevention.
Disclaimer
Read more
Show less
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.
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for INFLUENZA are added.
Genom att skicka in godkänner du våra Användarvillkor
Contacts and locations
Show contact details
Enter your email to view the contact information for this study.
Genom att skicka in godkänner du våra Användarvillkor
Locations
-
Centro de Pesquisas Clínicas do Instituto da Criança do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo
São Paulo, São Paulo, 05403 000, Brazil
-
Centro de Referência de Imunobiológicos Especiais (CRIE) Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo
São Paulo, São Paulo, 05403-000, Brazil
-
Centro de Referências para Imunobiológicos Especiais da Universidade Federal de São Paulo
São Paulo, São Paulo, 01220200, Brazil
-
Unidade de Pesquisa Clínica do Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo
Ribeirão Preto, São Paulo, 14049900, Brazil
Conditions
Explore the condition pages connected to this study.