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Completed Phase 1 Interventional Accepts healthy volunteers Results available

Chimpanzee Adenovirus and Self-Amplifying mRNA Prime-Boost Prophylactic Vaccines Against SARS-CoV-2 in Healthy Adults

ClinicalTrials.gov ID: NCT04776317

Public ClinicalTrials.gov record NCT04776317. 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 Jun 26, 2026, 6:06 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

A Phase 1 Trial to Evaluate the Safety, Immunogenicity, and Reactogenicity of Heterologous and Homologous Chimpanzee Adenovirus and Self-Amplifying mRNA Prime-Boost Prophylactic Vaccines Against SARS-CoV-2 in Healthy Adults

Study identification

NCT ID
NCT04776317
Recruitment status
Completed
Study type
Interventional
Phase
Phase 1
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Enrollment
81 participants

Conditions and interventions

Conditions

Interventions

  • ChAdV68-S Biological
  • ChAdV68-S-TCE Biological
  • SAM-LNP-S Biological
  • SAM-LNP-S-TCE Biological
  • Sodium Chloride, 0.9% Other

Biological · Other

Eligibility (public fields only)

Age range
18 Years to 99 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
Mar 24, 2021
Primary completion
Sep 14, 2023
Completion
Sep 14, 2023
Last update posted
May 15, 2025

2021 – 2023

United States locations

U.S. sites
4
U.S. states
4
U.S. cities
4
Facility City State ZIP Site status
The Hope Clinic of Emory University Decatur Georgia 30030-1705
Saint Louis University Center for Vaccine Development St Louis Missouri 63104-1015
Baylor College of Medicine Houston Texas 77030-3411
The University of Washington - Virology Research Clinic Seattle Washington 98104

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 NCT04776317, 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 May 15, 2025 · Synced Jun 26, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT04776317 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →