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Completed Phase 1 Interventional Accepts healthy volunteers

Evaluating the Safety and Immunogenicity of a Live Attenuated West Nile Virus Vaccine for West Nile Encephalitis in Adults 50 to 65 Years of Age

ClinicalTrials.gov ID: NCT02186626

Public ClinicalTrials.gov record NCT02186626. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 20, 2026, 2:29 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Phase 1 Study of the Safety and Immunogenicity of a 2-Dose Regimen of West Nile/Dengue 4-3´Δ30 Chimeric Virus Vaccine (WN/DEN4Δ30), a Live Attenuated Vaccine for West Nile Encephalitis, in Flavivirus-naïve Adults 50-65 Years of Age

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

West Nile virus (WNV) is considered an emerging virus in the United States, and infection can lead to severe illness in older adults. This study will evaluate the safety of and immune response to a live West Nile virus vaccine (WN/DEN4Δ30) for the prevention of West Nile encephalitis in adults 50 to 65 years old.

Study identification

NCT ID
NCT02186626
Recruitment status
Completed
Study type
Interventional
Phase
Phase 1
Enrollment
28 participants

Conditions and interventions

Interventions

Biological

Eligibility (public fields only)

Age range
50 Years to 65 Years
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Jan 31, 2014
Primary completion
Jun 30, 2016
Completion
Jun 30, 2016
Last update posted
Jan 31, 2017

2014 – 2016

United States locations

U.S. sites
2
U.S. states
2
U.S. cities
2
Facility City State ZIP Site status
Center for Immunization Research (CIR), Johns Hopkins Bloomberg School of Public Health Baltimore Maryland 21205
Vaccine Testing Center, University of Vermont College of Medicine (UVM) Burlington Vermont 05401

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT02186626, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jan 31, 2017 · Synced Sep 20, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT02186626 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →