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Clinical Trial Summary

It concerns an investigation aiming to investigate genetic biological(s) marker(s) which allow to identify individuals who have risk of serious adverse events to the yellow fever vaccine. This testing is free of hypothesis, because these markers are still unknown. There is no intervention, and it is not possible to establish primary and secondary outcomes.


Clinical Trial Description

The rational for the immunological study by LATIM is the observation made by the group that individuals vaccinated with the 17DD yellow fever vaccine show significant alterations on the levels of expression of genes such as CLEC5A, IFNG, IL6, RNASEL, IRF7, IRF9, STAT2 e OAS1 (8). The study which will be conducted by the Rockefeller University will be focused in the qualitative analysis of the genome and exome of volunteers. The study in LATIM will be focused in the quantitative analysis of mRNA, which, together with the results of sequencing, may help in the search for biomarkers. As the expression of mRNA is restricted to the acute phase of the adverse event, it will be done only during the first 30 days after the beginning of the adverse event. ;


Study Design


Related Conditions & MeSH terms

  • Drug-Related Side Effects and Adverse Reactions
  • Yellow Fever

NCT number NCT03938597
Study type Observational
Source The Immunobiological Technology Institute (Bio-Manguinhos) / Oswaldo Cruz Foundation (Fiocruz)
Contact Patricia MN de Oliveira, MD, PhD
Phone 552138827000
Email patricia.mouta@bio.fiocruz.br
Status Recruiting
Phase
Start date January 30, 2017
Completion date December 2023

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