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Completed Phase 1 Interventional Accepts healthy volunteers

Study of the Safety and Immunogenicity of an Intranasal Vaccine for Respiratory Syncytial Virus in Seropositive Children

ClinicalTrials.gov ID: NCT04444284

Public ClinicalTrials.gov record NCT04444284. 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 Nov 11, 2026, 12:29 PM EST

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Official title

A Randomized, Single-Blind, Placebo-Controlled, Dose-Escalation Phase 1b Study to Evaluate the Safety and Immunogenicity of an Intranasal Live Attenuated Respiratory Syncytial Virus (RSV) Vaccine in Seropositive Young Children

Brief summary

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

This study evaluates an investigational vaccine that is designed to protect humans against infection with respiratory syncytial virus (RSV) and is administered as drops in the nose. Specifically, the study analyzes the safety of, and the immune response to, the vaccine when administered to healthy children between the ages of 15 and 59 months who are seropositive to RSV.

Study identification

NCT ID
NCT04444284
Recruitment status
Completed
Study type
Interventional
Phase
Phase 1
Lead sponsor
Meissa Vaccines, Inc.
Industry
Enrollment
34 participants

Conditions and interventions

Eligibility (public fields only)

Age range
15 Months to 59 Months
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
Jun 9, 2020 (Actual)
Primary completion
May 7, 2021 (Actual)
Completion
May 7, 2021 (Actual)
Last update posted
Jun 29, 2021

2020 – 2021

United States locations

U.S. sites
3
U.S. states
2
U.S. cities
3
Facility City State ZIP Site status
Meridian Clinical Research Norfolk Nebraska 68701 —
Meridian Clinical Research Omaha Nebraska 68134 —
Cincinnati Children's Hospital Medical Center Cincinnati Ohio 45229 —

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 NCT04444284, 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 Jun 29, 2021 · Synced Nov 11, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT04444284 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →