Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 6, 2026, 4:22 PM EDT

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Showing 1–24 of 43 matching trials from the live ClinicalTrials.gov search.
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
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
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
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
Completed No phase listed Observational Accepts healthy volunteers

Post-marketing Safety of Elasomeran/Davesomeran and Andusomeran

NCT06130345
Conditions
SARS-CoV-2
Interventions
SPIKEVAX
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
Not listed
Enrollment
15,196,685 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
New York, New York
Conditions
SARS-CoV-2
Interventions
mRNA-1273, Placebo
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years and older
Enrollment
30,415 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
100
States / cities
Birmingham, Alabama • Chandler, Arizona • Glendale, Arizona + 79 more
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of Modified mRNA Vaccines in Healthy Adults

NCT05397223
Conditions
SARS-CoV-2, Seasonal Influenza, Respiratory Syncytial Virus, Cytomegalovirus
Interventions
mRNA-1273, mRNA-1010, mRNA-1345, FLUAD®, mRNA-1647
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
308 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
8
States / cities
Hollywood, Florida • Savannah, Georgia • Sioux City, Iowa + 4 more
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
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Safety of Simultaneous mRNA COVID-19 Vaccine With Other Childhood Vaccines in Young Children

NCT06038617
Conditions
Fever After Vaccination, Fever, Seizures Fever
Interventions
mRNA COVID-19 Vaccine, Routine Childhood Vaccinations
Biological
Lead sponsor
Duke University
Other
Eligibility
6 Months to 4 Years
Enrollment
347 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
5
States / cities
Oakland, California • Atlanta, Georgia • New York, New York + 2 more
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
Conditions
SARS-CoV-2
Interventions
mRNA-1273, Placebo, mRNA-1273.214
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
6 Months to 11 Years
Enrollment
11,942 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
83
States / cities
Birmingham, Alabama • Phoenix, Arizona • Anaheim, California + 68 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
SARS-CoV-2
Interventions
mRNA-1273, mRNA-1283, Placebo
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
50 Years to 64 Years
Enrollment
30,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
150
States / cities
Birmingham, Alabama • Cullman, Alabama • Mobile, Alabama + 127 more
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
Completed Phase 4 Interventional Accepts healthy volunteers Results available

SARS-CoV-2 Immune Responses After COVID-19 Therapy and Subsequent Vaccine

NCT04952402
Conditions
Covid19, SARS-CoV2 Infection
Interventions
Study-provided Moderna mRNA-1273 COVID-19 vaccine, Community-provided Moderna mRNA-1273 COVID-19 Vaccine, Community-Provided Pfizer-BioNTech BNT162b2 COVID-19 Vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
6
States / cities
Los Angeles, California • San Diego, California • Chicago, Illinois + 3 more
Conditions
Solid Tumor Malignancy, Hematologic Malignancy, Leukemia, Lymphoma, Multiple Myeloma
Interventions
Messenger ribonucleic acid (mRNA)-1273 Vaccine, Messenger ribonucleic acid (mRNA)-1273 Vaccine Booster, ECG, Antibiotics, Anti-viral agents, Anti-fungal agent, Anti-emetics
Biological · Diagnostic Test · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
SARS-CoV-2
Interventions
mRNA-1273
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years and older
Enrollment
234 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
15
States / cities
Mesa, Arizona • San Diego, California • New Haven, Connecticut + 12 more
Conditions
COVID-19, Long Haul
Interventions
Ritonavir-Boosted Nirmatrelvir (Paxlovid), Physiological Evaluation, Moderna COVID-19 Vaccine, Biopsychological, Behavioral (e.g., Psychotherapy, Lifestyle Counseling), Genetic (including gene transfer, stem cell and recombinant DNA), Multidisciplinary approach
Drug · Diagnostic Test · Biological + 3 more
Lead sponsor
Well- Konnect Healthcare Services and Research Firm
Network
Eligibility
18 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2030
U.S. locations
1
States / cities
Bethesda, Maryland
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
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
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
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Immunogenicity and Safety of mRNA-1283 COVID-19 Vaccine Boosters

NCT05137236
Conditions
SARS-CoV-2
Interventions
mRNA-1283, mRNA-1283.211, mRNA-1273, mRNA-1283.529
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
18 Years and older
Enrollment
540 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
17
States / cities
Phoenix, Arizona • Hollywood, Florida • Sunrise, Florida + 13 more
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
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