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Observational Study to Assess the Effectiveness of VLA1553 Vaccine in Preventing Chikungunya During a Pilot Vaccination Strategy in Brazil

StatusEnrolling by Invitation
PhaseNot specified
Started
View on ClinicalTrials.gov ↗

Record History

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  1. Study sites: 4 to 3
    • Eligibility criteria expanded, about 40 words
    v3
  2. Trial status: Not Yet Recruiting to Enrolling by Invitation
    • Study sites: 0 to 4
    v2
  3. Study First Submitted
  • Stopped: an ongoing trial was terminated, suspended or withdrawn.
  • Notable: the trial’s plan changed such as a big move in its timeline or size, a new primary endpoint, sponsor or phase, or recruiting opened or resumed.
  • Minor: routine progress and housekeeping, such as sites added or enrollment closed.
This is an observational, non-interventional, test-negative case-control (TNCC) study to estimate the vaccine effectiveness of VLA1553 against Chikungunya virus in a real-world setting.
Trial Details
NCT Number NCT07347002
Lead Sponsor Valneva Austria GmbH
Collaborators: Butantan Foundation, Coalition for Epidemic Preparedness Innovations
Conditions
(from sponsor)		 Chikungunya Virus Infection
Related terms Chikungunya Fever
Enrollment 1,200 participants
Start Date
Primary Completion (estimated)
Study Completion (estimated)
Updated on ClinicalTrials.gov