Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 3, 2026, 9:34 AM EDT

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

Showing 1–2 of 2 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
SARS-CoV-2
Interventions
mRNA-1273.211, mRNA-1273, mRNA-1273.617.2, mRNA-1273.213, mRNA-1273.529, mRNA-1273.214, mRNA-1273.222, mRNA-1273.815, mRNA-1273.231
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years and older
Enrollment
5,161 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
23
States / cities
Sacramento, California • Hollywood, Florida • Jacksonville, Florida + 18 more
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Delayed Heterologous SARS-CoV-2 Vaccine Dosing (Boost) After Receipt of EUA Vaccines

NCT04889209
Conditions
COVID-19
Interventions
Ad26.COV2.S, BNT162b2, mRNA-1273, mRNA-1273.211, mRNA-1273.222, SARS-CoV-2 rS/M1
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 99 Years
Enrollment
867 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
10
States / cities
Decatur, Georgia • Baltimore, Maryland • New York, New York + 6 more