A Study to Evaluate Safety, Reactogenicity, and Immunogenicity of mRNA-1283 and mRNA-1273 Vaccines in Healthy Adults Between 18 Years and 55 Years of Age to Prevent COVID-19
Public ClinicalTrials.gov record NCT04813796. 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.
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, Dose-Ranging Study to Evaluate the Safety, Reactogenicity, and Immunogenicity of mRNA-1283 and mRNA-1273 SARS-CoV-2 Vaccine in Adults Aged 18-55 Years
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The primary goal for this study is to evaluate the safety and reactogenicity of 3 dose levels of mRNA-1283 and 1 dose level of mRNA-1273 vaccine given to healthy adults in 2 doses, 28 days apart, and 1 dose level of mRNA-1283 administered as a single dose to healthy adults.
Study identification
- NCT ID
- NCT04813796
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 1
- Enrollment
- 104 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years to 55 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 10, 2021
- Primary completion
- Jul 24, 2023
- Completion
- Jul 24, 2023
- Last update posted
- Jul 31, 2023
2021 – 2023
United States locations
- U.S. sites
- 5
- U.S. states
- 5
- U.S. cities
- 5
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Synexus Clinical Research US Phoenix Southeast, Inc. | Chandler | Arizona | 85224 | — |
| Optimal Research San Diego, LLC | San Diego | California | 92108 | — |
| Optimal Research Melbourne, LLC | Melbourne | Florida | 32934 | — |
| Optimal Research Illinois, LLC | Peoria | Illinois | 61614 | — |
| Optimal Research Texas, LLC | Austin | Texas | 78705 | — |
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 NCT04813796, 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 Jul 31, 2023 · Synced Sep 2, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04813796 live on ClinicalTrials.gov.