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ClinicalTrials.gov public records Last synced Oct 10, 2026, 5:59 PM EDT

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Showing 241–264 of 328 matching trials from the live ClinicalTrials.gov search.
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Prompt to Bundle COVID-19 Booster and Flu Shot

NCT05586165
Conditions
COVID-19, Vaccines
Interventions
Reminder to boost protection against COVID-19, Flu Tag Along, COVID-19 Booster & Flu Bundle
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
109,493 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Los Angeles, California
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
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
Beliefs
Interventions
Corrective message framing and humor
Behavioral
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
21 Years to 99 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Baltimore, Maryland
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Phase 3 Study of Novavax Vaccine(s) as Booster Dose After mRNA Vaccines

NCT05875701
Conditions
COVID-19
Interventions
NVX-CoV2373, SARS-CoV-2 rS antigen/Matrix-M Adjuvant
Biological
Lead sponsor
Novavax
Industry
Eligibility
18 Years to 49 Years
Enrollment
147 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
5
States / cities
Austin, Texas • Fort Worth, Texas • Plano, Texas + 1 more
Conditions
SARS-CoV-2 Infection, COVID-19, SARS-CoV-2 Acute Respiratory Disease, SARS (Disease)
Interventions
BNT162b2, Multivalent BNT162b2 (B.1.1.7 + B.1.617.2), Monovalent BNT162b2 (B.1.1.7), Monovalent BNT162b2 (B.1.617.2), Monovalent BNT162b2 (B.1.1.529.1), Observational
Biological · Other
Lead sponsor
BioNTech SE
Industry
Eligibility
18 Years to 85 Years
Enrollment
1,380 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
14
States / cities
Long Beach, California • San Diego, California • Milford, Connecticut + 10 more
Conditions
COVID-19
Interventions
OCU500
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 64 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
6
States / cities
Decatur, Georgia • Baltimore, Maryland • Boston, Massachusetts + 2 more
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

A Study to Learn About How the Flu and COVID-19 Vaccines Act in Healthy People

NCT06821061
Conditions
Influenza, COVID-19 (Coronavirus Disease 2019)
Interventions
Investigational Influenza Vaccine, Investigational COVID-19 Vaccine, Investigational Influenza and COVID-19 Combination Vaccine, Licensed Influenza Vaccine 1, Licensed Influenza Vaccine 2, Licensed Influenza Vaccine 3, Licensed COVID-19 Vaccine
Biological · Combination Product
Lead sponsor
BioNTech SE
Industry
Eligibility
18 Years and older
Enrollment
2,650 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
31
States / cities
Anaheim, California • Lake Forest, California • Riverside, California + 26 more
Conditions
Rheumatoid Arthritis, Psoriatic Arthritis, Spondylarthritis
Interventions
Upadacitinib, Abatacept, Secukinumab, Tofacitinib, TNF Inhibitor, Canakinumab Injection, Baricitinib, Ixekizumab
Drug
Lead sponsor
Jeffrey Curtis
Other
Eligibility
18 Years to 85 Years
Enrollment
841 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
8
States / cities
Birmingham, Alabama • Hoover, Alabama • Phoenix, Arizona + 4 more
Conditions
Immunocompromised, Immunosuppressed, Covid-19, SARS-COV-2, SARS-COV-2 Infection, Breakthrough Infection
Interventions
BNT162b2 (Tozinameran)
Biological
Lead sponsor
Pfizer
Industry
Eligibility
12 Years and older
Enrollment
1,277,747 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
New York, New York
Completed No phase listed Observational Accepts healthy volunteers

COVID Booster in Pregnancy and Lactation

NCT05543993
Conditions
COVID-19
Interventions
Bivalent COVID-19 Booster
Drug
Lead sponsor
Thomas Jefferson University
Other
Eligibility
13 Years to 55 Years · Female only
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Conditions
SARS-CoV-2 Infection, COVID-19
Interventions
BNT162b5 Bivalent (WT/OMI BA.2), BNT162b2 Bivalent (WT/OMI BA.1), BNT162b2 Bivalent (WT/OMI BA.4/BA.5), BNT162b5 Bivalent (Original/OMI BA.4/BA.5), BNT162b6 Bivalent (Original/OMI BA.4/BA.5), BNT162b7 Bivalent (Original/OMI BA.4/BA.5), BNT162b7 Monovalent (OMI BA.4/BA.5)
Biological
Lead sponsor
BioNTech SE
Industry
Eligibility
12 Years and older
Enrollment
1,453 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
31
States / cities
Anaheim, California • San Diego, California • Valley Village, California + 26 more
Conditions
Inflammatory Bowel Diseases
Interventions
Influenza vaccine, COVID-19 vaccine
Biological
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 64 Years
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Madison, Wisconsin
Conditions
COVID-19 (Healthy Volunteers)
Interventions
CoV2 preS dTM-AF03 (low-dose), CoV2 preS dTM-AF03 (high-dose), CoV2 preS dTM-AS03 (low-dose), CoV2 preS dTM-AS03 (high-dose), CoV2 preS dTM (high-dose) without adjuvant, Placebo (0.9% normal saline)
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
441 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
11
States / cities
Birmingham, Alabama • Rolling Hills Estates, California • Hollywood, Florida + 7 more
Conditions
COVID-19
Interventions
SARS-CoV-2 adjuvanted recombinant protein vaccine (monovalent D614) (primary series), SARS-CoV-2 adjuvanted recombinant protein vaccine (bivalent D614 + B.1.351) (primary series), Placebo, SARS-CoV-2 adjuvanted recombinant protein vaccine (monovalent B.1.351) (booster dose) >= 4 months after last vaccination, SARS-CoV-2 adjuvanted recombinant protein vaccine(monovalent D614)(primary series)& SARS-CoV-2 adjuvanted recombinant protein vaccine(monovalent B.1.351)(booster dose)>=4 months after last vaccination
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
23,670 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
23
States / cities
Birmingham, Alabama • Huntsville, Alabama • Rolling Hills Estates, California + 20 more
Conditions
Covid19
Interventions
CVXGA1 low dose, CVXGA1 high dose
Biological
Lead sponsor
CyanVac LLC
Industry
Eligibility
18 Years to 55 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
4
States / cities
Bardstown, Kentucky • Rochester, New York • Cincinnati, Ohio + 1 more
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
Completed Not applicable Interventional Accepts healthy volunteers

ACTIVATE in Public Housing

NCT06075732
Conditions
Pneumonia, Influenza, Varicella Zoster, Meningitis, COVID-19, Vaccine Hesitancy
Interventions
Increasing Willingness and Uptake of Influenza, Pneumonia, Meningitis, HZV, and COVID-19 Vaccination
Behavioral
Lead sponsor
Charles Drew University of Medicine and Science
Other
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Los Angeles, California
Conditions
SARS-CoV-2 Infection
Interventions
PRIME-2-CoV_Beta
Drug
Lead sponsor
Speransa Therapeutics
Industry
Eligibility
18 Years to 85 Years
Enrollment
103 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
5
States / cities
Florida City, Florida • Chicago, Illinois • Kansas City, Missouri + 2 more
Conditions
Vaccination, Wastewater Surveillance
Interventions
Wastewater vaccine prompts
Behavioral
Lead sponsor
Syracuse University
Other
Eligibility
Not listed
Enrollment
100,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Syracuse, New York
Conditions
SARS-CoV-2 Infection, COVID-19
Interventions
BNT162b2
Biological
Lead sponsor
BioNTech SE
Industry
Eligibility
18 Years to 55 Years
Enrollment
629 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
21
States / cities
Anaheim, California • Walnut Creek, California • Hialeah, Florida + 16 more
Conditions
Healthy Participants
Interventions
Combination [RSVpreF+BNTb162b2], Bivalent BNT162b2 (original/Omi BA.4/BA.5), RSVpreF, QIV, Normal Saline Placebo
Biological
Lead sponsor
Pfizer
Industry
Eligibility
65 Years and older
Enrollment
1,142 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
37
States / cities
Dublin, California • Huntington Beach, California • Lake Forest, California + 26 more
Completed No phase listed Observational Accepts healthy volunteers

COVID-19 Vaccines International Pregnancy Exposure Registry

NCT04705116
Conditions
Covid19
Interventions
COVID-19 vaccine
Biological
Lead sponsor
Pregistry
Industry
Eligibility
18 Years to 50 Years · Female only
Enrollment
1,184 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Conditions
COVID-19
Interventions
CVXGA (CVXGA50), COMIRNATY®
Biological
Lead sponsor
CyanVac LLC
Industry
Eligibility
18 Years to 100 Years
Enrollment
432 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
55
States / cities
Anniston, Alabama • Phoenix, Arizona • Chula Vista, California + 44 more