Dose-Confirmation Study to Evaluate the Safety, Reactogenicity, and Immunogenicity of mRNA-1273 COVID-19 Vaccine in Adults Aged 18 Years and Older
Public ClinicalTrials.gov record NCT04405076. 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 2a, Randomized, Observer-Blind, Placebo Controlled, Dose-Confirmation Study to Evaluate the Safety, Reactogenicity, and Immunogenicity of mRNA-1273 SARS-COV-2 Vaccine in Adults Aged 18 Years and Older
Study identification
- NCT ID
- NCT04405076
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Lead sponsor
- ModernaTX, Inc.
- Industry
- Enrollment
- 660 participants
Conditions and interventions
Conditions
Interventions
- Biological: mRNA-1273 Biological
- Placebo Biological
- mRNA-1273.351 Biological
Biological
Eligibility (public fields only)
- Age range
- 18 Years and older
- 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
- May 28, 2020
- Primary completion
- Oct 27, 2021
- Completion
- Oct 27, 2021
- Last update posted
- Dec 29, 2022
2020 – 2021
United States locations
- U.S. sites
- 8
- U.S. states
- 7
- U.S. cities
- 8
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Meridian Clinical Research | Savannah | Georgia | 31406 | — |
| Alliance for Multispecialty Research | Newton | Kansas | 67114 | — |
| Alliance for Multispecialty Research | Kansas City | Missouri | 64114 | — |
| Meridian Clinical Research | Norfolk | Nebraska | 68701 | — |
| Trial Management Associates | Wilmington | North Carolina | 28403 | — |
| Meridian Clinical Research | Dakota Dunes | South Dakota | 57049 | — |
| Benchmark Research | Austin | Texas | 78705 | — |
| Benchmark Research | San Angelo | Texas | 76904 | — |
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 NCT04405076, 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 Dec 29, 2022 · Synced Jul 23, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04405076 live on ClinicalTrials.gov.