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Completed Phase 1 Interventional Accepts healthy volunteers Results available

Safety, Immunogenicity, and Dose Ranging Study of Inactivated Zika Virus Vaccine in Healthy Participants

ClinicalTrials.gov ID: NCT03343626

Public ClinicalTrials.gov record NCT03343626. 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 Oct 19, 2026, 11:51 AM EDT

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

Official title

A Phase 1, Randomized, Observer-Blind, Placebo-Controlled, Safety, Immunogenicity, and Dose Ranging Study of Purified Inactivated Zika Virus Vaccine (PIZV) Candidate in Flavivirus Naïve and Primed Healthy Adults Aged 18 to 49 Years

Brief summary

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

The purpose of this study is to describe the safety, tolerability and immunogenicity of two doses of purified inactivated Zika virus vaccine (PIZV) given 28 days apart. Three different vaccine doses containing different protein concentrations (2, 5 or 10 microgram \[mcg\]) each, will be given as 2 dose schedule to flavivirus naive and primed healthy adults. Participants will be followed for 7 days post each dose for tolerability and up to 6 months post dose 2 for safety. Immunogenicity assessment will be performed at 28 days post each dose and 6 months post dose 2. In addition, the selected dose group and control group will be followed till 24 months post dose 2 for safety and persistence of immunity.

Study identification

NCT ID
NCT03343626
Recruitment status
Completed
Study type
Interventional
Phase
Phase 1
Lead sponsor
Takeda
Industry
Enrollment
271 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years to 49 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
Nov 13, 2017 (Actual)
Primary completion
Dec 28, 2018 (Actual)
Completion
Nov 24, 2020 (Actual)
Last update posted
Feb 11, 2022

2017 – 2020

United States locations

U.S. sites
7
U.S. states
4
U.S. cities
6
Facility City State ZIP Site status
Clinical Research of South Florida Coral Gables Florida 33134 —
Miami Research Associates Miami Florida 33143 —
AppleMed Research Miami Florida 33155 —
Johnson County Clin-Trials Lenexa Kansas 66219 —
Regional Clinical Research Inc. Endwell New York 13760 —
Rochester Clinical Research Rochester New York 14609 —
Tekton Research Austin Texas 78745 —

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

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 2 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03343626, 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 Feb 11, 2022 · Synced Oct 19, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT03343626 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →