Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 23, 2026, 11:09 PM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
COVID-19
Interventions
Flu Seasonal /SARS-CoV-2 mRNA Dose 1, Flu Seasonal /SARS-CoV-2 mRNA Dose 2, Flu Seasonal mRNA, SARS-CoV-2 mRNA Dose 1, SARS-CoV-2 mRNA Dose 2, Licensed Flu Seasonal, Licensed COVID-19 mRNA, Placebo
Combination Product · Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 64 Years
Enrollment
106 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
9
States / cities
Anniston, Alabama • Rolling Hills Estates, California • Hialeah, Florida + 5 more
Conditions
COVID-19, Immunosuppression, Vaccine Response Impaired
Interventions
Reduction in antimetabolite immunosuppression
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Sacramento, California
Conditions
Relapsing Multiple Sclerosis (RMS)
Interventions
Ofatumumab, mRNA COVID-19 vaccine, interferon or glatiramer acetate
Drug · Biological
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 55 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
7
States / cities
Phoenix, Arizona • Hollywood, Florida • Wellesley, Massachusetts + 4 more
Completed No phase listed Observational Accepts healthy volunteers

A Study of the Effectiveness of Moderna COVID-19 Vaccine

NCT05933304
Conditions
SARS-CoV-2, COVID-19
Interventions
Not listed
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
6 Months and older
Enrollment
927,004 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Pasadena, California
Conditions
COVID-19 Vaccine, Corona Virus Infection, Vaccine Adverse Reaction, Vaccine Response, Inflammation, Thrombosis
Interventions
Not listed
Lead sponsor
LifeBridge Health
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Baltimore, Maryland
Not yet recruiting Phase 2 Interventional Accepts healthy volunteers

mRNA Covid-19 Vaccine Immune Response Comparisons Using Different Delivery Routes

NCT06919796
Conditions
Evaluate Immune Responses Following mRNA COVID-19 Vaccine Administration Through Different Delivery Routes in Healthy Volunteers, SARS CoV-2
Interventions
COMIRNATY®
Biological
Lead sponsor
PharmaJet, Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Decatur, Georgia
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
Chronic Lymphocytic Leukemia, COVID-19 Infection
Interventions
Biospecimen Collection, mRNA COVID-19 Vaccine, Synthetic MVA-based SARS-CoV-2 Vaccine COH04S1
Procedure · Biological
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Duarte, California
Conditions
Pneumococcal Infection
Interventions
V110, V114, mRNA-1273, Placebo for V110, Placebo for V114
Biological
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
50 Years and older
Enrollment
850 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
42
States / cities
North Hollywood, California • Northridge, California • Paramount, California + 38 more
Conditions
COVID-19, SARS-CoV-2 Infection
Interventions
AZD9838, Licensed SARS-CoV-2 mRNA vaccine, AZD6563
Biological
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years and older
Enrollment
243 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
5
States / cities
Long Beach, California • Rolling Hills Estates, California • Chicago, Illinois + 2 more
Conditions
COVID-19, Vaccine-Preventable Diseases, SARS CoV 2 Infection
Interventions
protein subunit: Novavax COVID-19 vaccine, Pfizer mRNA COVID-19 vaccine
Biological
Lead sponsor
Novavax
Industry
Eligibility
18 Years and older
Enrollment
660 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Salt Lake City, Utah
Completed No phase listed Observational Accepts healthy volunteers

Retail COVID-19 Study

NCT06761612
Conditions
COVID - 19
Interventions
FDA approved mRNA vaccines
Biological
Lead sponsor
Biomedical Advanced Research and Development Authority
Federal
Eligibility
3 Years and older
Enrollment
2,519 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
20
States / cities
Kissimmee, Florida • Chicago, Illinois • Oak Park, Illinois + 15 more
Completed Phase 2 Interventional Results available

COVID-19 Protection After Transplant Pilot Study

NCT04969263
Conditions
Kidney Transplant Recipients
Interventions
BNT162b2 vaccine (Pfizer/BioNTech), mRNA-1273 vaccine (Moderna)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
SARS-CoV-2, COVID-19, Post-Acute COVID-19 Syndrome
Interventions
Pfizer-BioNTech COVID-19 mRNA vaccine
Biological
Lead sponsor
Pfizer
Industry
Eligibility
6 Months and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
New York, New York
Conditions
Influenza, Human, COVID-19
Interventions
Comirnaty, Quadrivalent Influenza Vaccine
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
3,442,996 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
New York, New York
Conditions
Relapsing Multiple Sclerosis
Interventions
Ofatumumab, Covid-19 vaccine
Other
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 55 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
4
States / cities
Phoenix, Arizona • Owosso, Michigan • St Louis, Missouri + 1 more
Conditions
Myocardial Injury, COVID-19, Vaccine Reaction
Interventions
Not listed
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Aurora, Colorado
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
Inflammatory Bowel Diseases
Interventions
COVID-19 Vaccine
Biological
Lead sponsor
GI Alliance
Other
Eligibility
18 Years to 85 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
4
States / cities
Jacksonville, Florida • Baton Rouge, Louisiana • Southlake, Texas + 1 more
Recruiting No phase listed Observational Accepts healthy volunteers

The Impact of COVID-19 on Maternal and Neonatal Outcomes

NCT05197621
Conditions
COVID-19, Pregnancy; Infection
Interventions
mRNA COVID-19 vaccine (Pfizer or Moderna)
Biological
Lead sponsor
Johns Hopkins University
Other
Eligibility
14 Years to 55 Years · Female only
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2028
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
COVID-19
Interventions
SARS-CoV-2 recombinant protein vaccine Phase 2 Formulation 1, SARS-CoV-2 recombinant protein vaccine Phase 2 Formulation 2, SARS-CoV-2 recombinant protein vaccine Phase 2 Formulation 3, SARS-CoV-2 adjuvanted recombinant protein vaccine, monovalent (D614)-AS03, Dosage A, SARS-CoV-2 adjuvanted recombinant protein vaccine, monovalent (B.1.351)-AS03, SARS-CoV-2 adjuvanted recombinant protein vaccine, monovalent (D614)-AS03, Dosage B, SARS-CoV-2 adjuvanted recombinant protein vaccine, monovalent (B.1.351)-AS03 Alternative Exploratory Formulation 1, SARS-CoV-2 adjuvanted recombinant protein vaccine, monovalent (B.1.351)-AS03 Alternative Exploratory Formulation 2, SARS-CoV-2 adjuvanted recombinant protein vaccine, monovalent (B.1.351)-AS03 Alternative Exploratory Formulation 3, SARS-CoV-2 adjuvanted recombinant protein vaccine, monovalent (B.1.351)-AS03 Alternative Exploratory Formulation 4, SARS-CoV-2 adjuvanted recombinant protein vaccine, bivalent (D614+B.1.351)-AS03
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
3,159 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
30
States / cities
Birmingham, Alabama • Chandler, Arizona • Glendale, Arizona + 26 more
Conditions
COVID-19
Interventions
NDV-HXP-S-KP.2, COVID-19 mRNA Vaccine
Biological
Lead sponsor
CastleVax Inc.
Industry
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
2
States / cities
Colorado Springs, Colorado • Burlington, Massachusetts
Conditions
Respiratory Syncytial Virus Infections
Interventions
RSVPreF3 OA investigational vaccine, COVID-19 mRNA vaccine
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
50 Years and older
Enrollment
841 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
8
States / cities
Coral Gables, Florida • Savannah, Georgia • Evansville, Indiana + 5 more
Conditions
Adverse Reaction to Vaccine, COVID19 Vaccine
Interventions
BNT162b2, mRNA-1273, AZD1222, CoronaVac, Sinopharm, Gam-COVID-Vac, JNJ-78436735, CVnCoV, NVX-CoV2373, BBV152
Biological
Lead sponsor
Masaryk University
Other
Eligibility
18 Years and older
Enrollment
30,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Philadelphia, Pennsylvania