Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 11, 2026, 9:01 AM EDT

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Showing 25–44 of 44 matching trials from the live ClinicalTrials.gov search.
Conditions
SARS-CoV-2
Interventions
mRNA-1283, mRNA-1273
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
6 Months to 11 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
13
States / cities
Ontario, California • Miami, Florida • Miami Lakes, Florida + 9 more
Conditions
SARS-CoV-2
Interventions
mRNA-1273 Variant-containing Formulation
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
6 Months and older
Enrollment
1,144 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
6
States / cities
Atlanta, Georgia • Decatur, Georgia • Baton Rouge, Louisiana + 3 more
Conditions
SARS-CoV-2
Interventions
Not listed
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
Not listed
Enrollment
50,000,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
New York, New York
Conditions
SARS-CoV-2
Interventions
mRNA-1273.214, Placebo
Biological · Other
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
2 Months to 6 Months
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
39
States / cities
Bessemer, Alabama • Birmingham, Alabama • Tucson, Arizona + 34 more
Terminated No phase listed Observational Accepts healthy volunteers

Moderna COVID-19 Vaccine mRNA-1273 Observational Pregnancy Outcome Study

NCT04958304
Conditions
SARS-CoV-2
Interventions
Not listed
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Durham, North Carolina
Conditions
Healthy, Chronic Stable Illness
Interventions
casirivimab+imdevimab, Moderna mRNA-1273 vaccine
Drug · Biological
Lead sponsor
Regeneron Pharmaceuticals
Industry
Eligibility
18 Years to 90 Years
Enrollment
295 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
6
States / cities
Little Rock, Arkansas • Rogers, Arkansas • Hialeah, Florida + 3 more
Conditions
Covid19
Interventions
Moderna mRNA-1273 COVID-19 vaccine, Pfizer BNT162b2 COVID-19 vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
16
States / cities
Los Angeles, California • San Francisco, California • Stanford, California + 11 more
Conditions
Myocarditis
Interventions
Not listed
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
Not listed
Enrollment
1,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
1
States / cities
Chicago, Illinois
Conditions
Lung Transplant Recipient, SARS-CoV-2, Immunosuppression
Interventions
mRNA-1273 (Moderna COVID-19 vaccine)
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Conditions
COVID-19, Corona Virus Infection
Interventions
Pfizer-BioNTech mRNA COVID-19 vaccine, Moderna mRNA COVID-19 vaccine
Biological
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
137 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Ann Arbor, Michigan
Conditions
SARS-CoV-2
Interventions
Biological: mRNA-1273, Placebo, mRNA-1273.351
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years and older
Enrollment
660 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
8
States / cities
Savannah, Georgia • Newton, Kansas • Kansas City, Missouri + 5 more
Conditions
COVID-19
Interventions
Moderna COVID-19 Vaccine, Moderna mRNA1273.222 Booster, Pfizer COVID-19 Vaccine, Moderna 2023 Updated COVID-19 vaccine (XBB.1.5), Pfizer 2023 Updated COVID-19 vaccine (XBB.1.5)
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1,713 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Culver City, California
Conditions
Kidney Transplant Recipients, Liver Transplant Recipients
Interventions
Pfizer-BioNTech COVID-19 Vaccine 2023-2024, Moderna COVID-19 Vaccine 2023-2024, SOC IS Regimen, SOC IS Reduction
Biological · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
15
States / cities
San Diego, California • San Francisco, California • Atlanta, Georgia + 10 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
Completed Phase 2 Interventional Accepts healthy volunteers Results available

COVID19 SARS Vaccinations: Systemic Allergic Reactions to SARS-CoV-2 Vaccinations

NCT04761822
Conditions
SARS-CoV Infection, COVID-19, Allergic Reaction, Mast Cell Disorder
Interventions
Moderna COVID-19 Vaccine, Pfizer-BioNTech COVID-19 Vaccine, Placebo
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
5 Years and older
Enrollment
746 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
29
States / cities
Tucson, Arizona • Little Rock, Arkansas • Los Angeles, California + 24 more
Conditions
Covid19, Vaccine Reaction
Interventions
COVID-19 vaccine
Drug
Lead sponsor
Huntington Memorial Hospital
Other
Eligibility
Not listed
Enrollment
167 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Pasadena, California
Conditions
SARS-CoV-2
Interventions
mRNA-1273, mRNA-1283
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
12 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
5
States / cities
Overland Park, Kansas • Louisville, Kentucky • Charlotte, North Carolina + 2 more
Terminated No phase listed Observational Accepts healthy volunteers

Immune Responses in Oncology Patients to Novel Coronavirus Vaccines (IROC)

NCT04930055
Conditions
Cancer
Interventions
COVID-19 Vaccination
Biological
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
2,206 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
2
States / cities
Carmel, Indiana • Indianapolis, Indiana
Conditions
COVID-19
Interventions
mRNA-1283.222, mRNA-1273.222, mRNA-1283.815, mRNA-1273.815
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
12 Years and older
Enrollment
13,553 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
161
States / cities
Huntsville, Alabama • Vestavia Hills, Alabama • Chandler, Arizona + 129 more
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