Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.

Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 13, 2026, 12:42 PM EDT

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

Showing 121–144 of 404 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: COVID-19 vaccine Clear all
Completed No phase listed Observational

Effect of Disease Modifying Therapy on Antibody Response to COVID19 Vaccination in Multiple Sclerosis

NCT04834401
View directory record Official record
Conditions
Multiple Sclerosis, Covid19
Interventions
Not listed
Lead sponsor
St. Barnabas Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
45 participants
Timeline
2021 – 2022
U.S. locations
1
States / cities
Livingston, New Jersey
Source: ClinicalTrials.gov public record
Updated Aug 18, 2022 · Synced Oct 13, 2026, 12:42 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Immunogenicity of HDT-301 Targeting a SARS-CoV-2 Variant Spike Protein

NCT05132907
View directory record Official record
Conditions
SARS-CoV2 Infection
Interventions
HDT-301
Biological
Lead sponsor
HDT Bio
Industry
Eligibility
18 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Renton, Washington
Source: ClinicalTrials.gov public record
Updated Oct 23, 2024 · Synced Oct 13, 2026, 12:42 PM EDT
Terminated Early Phase 1 Interventional Accepts healthy volunteers

COVID-19 Booster Vaccination in Persons With Multiple Sclerosis

NCT05081271
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Homologous booster, Heterologous booster
Biological
Lead sponsor
Griffin Hospital
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Derby, Connecticut
Source: ClinicalTrials.gov public record
Updated Nov 21, 2022 · Synced Oct 13, 2026, 12:42 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Effect of Messaging on Pragmatic Outcomes Within an Integrated Healthcare System

NCT07838038
View directory record Official record
Conditions
Covid-19 Vaccination
Interventions
Vaccine choice message, Vaccine choice + platform-framed message, Vaccine choice + HCP trust-framed message, Vaccine choice + reactogenicity-framed message
Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
18 Years and older
Enrollment
1,300,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Pasadena, California
Source: ClinicalTrials.gov public record
Updated Sep 29, 2026 · Synced Oct 13, 2026, 12:42 PM EDT
Terminated No phase listed Observational

A Randomized Study to Determine the Expression of the Furin Protein in Patients With SARS-CoV-2 and Vaccinated Against Coronavirus

NCT05104840
View directory record Official record
Conditions
COVID-19, SARS-CoV-2, Furin, RGMc Processing, Paired Basic Amino Acid Cleaving Enzyme (PACE)
Interventions
Not listed
Lead sponsor
Center Trials & Treatment
Other
Eligibility
18 Years and older
Enrollment
2,432 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
4
States / cities
Jacksonville, Florida • Ocala, Florida • Charleston, South Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 29, 2023 · Synced Oct 13, 2026, 12:42 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Researchers At UC San Diego Are Learning About the Benefits of Human Milk and How It Influences Infant and Child Health

NCT05553743
View directory record Official record
Conditions
Breastfeeding, COVID-19 Infection, COVID-19 Vaccine, Remdesivir, Antibiotics
Interventions
COVID-19 Exposure, Antibiotic
Biological · Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older · Female only
Enrollment
5,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2040
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jan 31, 2025 · Synced Oct 13, 2026, 12:42 PM EDT
Completed Not applicable Interventional Results available

Developing and Testing a COVID-19 Vaccination Acceptance Intervention

NCT05027464
View directory record Official record
Conditions
COVID-19 Vaccination
Interventions
Moving to COVID-19 Vaccine Acceptance Intervention
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
338,718 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
2
States / cities
North Little Rock, Arkansas • San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 8, 2024 · Synced Oct 13, 2026, 12:42 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Long-Term Experience and Health Effects of COVID-19

NCT04477902
View directory record Official record
Conditions
Covid19, Corona Virus Infection, Quality of Life, Risk Reduction
Interventions
none - observational
Other
Lead sponsor
Altura
Industry
Eligibility
18 Years to 100 Years
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Mission Viejo, California
Source: ClinicalTrials.gov public record
Updated Jun 24, 2021 · Synced Oct 13, 2026, 12:42 PM EDT
Completed No phase listed Observational

COVID-19 Breakthrough Infection in Fully Vaccinated People and in People Who Received a Booster Dose

NCT05392075
View directory record Official record
Conditions
COVID-19 Pneumonia, COVID-19
Interventions
Pfizer COVID-19 mRNA vaccine, Moderna COVID-19 mRNA vaccine
Biological
Lead sponsor
Methodist Health System
Other
Eligibility
18 Years to 100 Years
Enrollment
100 participants
Timeline
2023
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Mar 24, 2026 · Synced Oct 13, 2026, 12:42 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study of mRNA-1345 Vaccine Targeting Respiratory Syncytial Virus (RSV) in Adults ≥50 Years of Age

NCT05330975
View directory record Official record
Conditions
Respiratory Syncytial Virus
Interventions
Placebo, mRNA-1345, Afluria® Quadrivalent, mRNA-1273.214
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
50 Years and older
Enrollment
3,317 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
62
States / cities
Birmingham, Alabama • Tucson, Arizona • Garden Grove, California + 51 more
Source: ClinicalTrials.gov public record
Updated Dec 30, 2025 · Synced Oct 13, 2026, 12:42 PM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

Safety and Immunogenicity Trial of PepGNP-COVID19 Vaccine in Adults

NCT07183709
View directory record Official record
Conditions
COVID-19
Interventions
PepGNP-COVID19, Sterile Water for Injection
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 64 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
3
States / cities
Birmingham, Alabama • Washington D.C., District of Columbia • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated May 15, 2026 · Synced Oct 13, 2026, 12:42 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

A CHW Intervention to Identify and Decrease Barriers to COVID 19 Testing & Vaccination

NCT05473936
View directory record Official record
Conditions
Vaccine Hesitancy, COVID-19 Testing, Community Health Workers
Interventions
Community Health Worker led curriculum
Behavioral
Lead sponsor
Charles Drew University of Medicine and Science
Other
Eligibility
16 Years and older
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
2
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 2, 2023 · Synced Oct 13, 2026, 12:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

COVID-19 Vaccine Education at the Point of Testing to Increase Vaccine Uptake in Vulnerable Communities in SE Louisiana

NCT04939506
View directory record Official record
Conditions
Covid19, Vaccine Refusal, Vaccine Hesitancy
Interventions
COVID-19 Vaccine Education at the Point of COVID-19 Testing
Behavioral
Lead sponsor
Xavier University of Louisiana.
Other
Eligibility
18 Years to 99 Years
Enrollment
377 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Jul 21, 2026 · Synced Oct 13, 2026, 12:42 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Safety, Tolerability, and Immunogenicity of Combined Modified RNA Vaccine Candidates Against COVID-19 and Influenza

NCT05596734
View directory record Official record
Conditions
Influenza, Human, COVID-19
Interventions
bivalent BNT162b2 (original/Omi BA.4/BA.5), qIRV (22/23), QIV, bIRV, tIRV
Biological
Lead sponsor
BioNTech SE
Industry
Eligibility
18 Years and older
Enrollment
1,019 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
59
States / cities
Athens, Alabama • Phoenix, Arizona • Lake Forest, California + 40 more
Source: ClinicalTrials.gov public record
Updated Jul 23, 2025 · Synced Oct 13, 2026, 12:42 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Understanding Immunity to the COVID-19 Vaccines

NCT04664309
View directory record Official record
Conditions
COVID-19, Immunity, Vaccine
Interventions
No intervention
Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Feb 28, 2022 · Synced Oct 13, 2026, 12:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Information Provision and Consistency Framing to Increase COVID-19 Booster Uptake

NCT05586178
View directory record Official record
Conditions
COVID-19, Vaccines
Interventions
Reminder that facilitates action, Consistency framing, Information provision about the uniqueness of the bivalent booster, Information provision about bivalent booster eligibility, Information provision about the severity of COVID-19 symptoms
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
177,720 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Dec 5, 2024 · Synced Oct 13, 2026, 12:42 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Understanding the Long-term Impact of COVID on Children and Families

NCT05172011
View directory record Official record
Conditions
SARS-CoV-2 Infection
Interventions
Not listed
Lead sponsor
NYU Langone Health
Other
Eligibility
Up to 25 Years
Enrollment
15,028 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
65
States / cities
Birmingham, Alabama • Little Rock, Arkansas • La Jolla, California + 51 more
Source: ClinicalTrials.gov public record
Updated Dec 31, 2025 · Synced Oct 13, 2026, 12:42 PM EDT
Recruiting Phase 3 Interventional Accepts healthy volunteers

Safety and Serum Virus Neutralizing Antibody Responses of VYD2311, a COVID-19 Vaccine, and Coadministered VYD2311 With a COVID-19 Vaccine

NCT07655180
View directory record Official record
Conditions
COVID-19
Interventions
COVID-19 mRNA vaccine, VYD2311, Placebo (Normal Saline)
Drug
Lead sponsor
Invivyd, Inc.
Industry
Eligibility
18 Years to 49 Years
Enrollment
210 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Jun 17, 2026 · Synced Oct 13, 2026, 12:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

An Online Game to Help Canadian Adults Identify COVID-19 Vaccine Misinformation With One-Month Follow-Up

NCT07758296
View directory record Official record
Conditions
COVID-19, Vaccination Hesitancy, Health Misinformation, Communication
Interventions
Gamified misinformation refutation quiz, Refutational text blog post (active control)
Behavioral
Lead sponsor
University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
4,071 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Oct 13, 2026, 12:42 PM EDT
Terminated Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Safety, Immunogenicity, and Efficacy of INO-4800 for COVID-19 in Adults at High Risk of SARS-CoV-2 Exposure

NCT04642638
View directory record Official record
Conditions
Coronavirus Infection, Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), COVID-19 Disease
Interventions
INO-4800, CELLECTRA® 2000, Placebo
Drug · Device
Lead sponsor
Inovio Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
1,307 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
16
States / cities
Chandler, Arizona • Phoenix, Arizona • Tempe, Arizona + 12 more
Source: ClinicalTrials.gov public record
Updated Dec 20, 2023 · Synced Oct 13, 2026, 12:42 PM EDT
Completed Phase 2Phase 3 Interventional

Antithrombotic Therapy to Ameliorate Complications of COVID-19 (ATTACC)

NCT04372589
View directory record Official record
Conditions
COVID-19, Pneumonia
Interventions
Heparin
Drug
Lead sponsor
University of Manitoba
Other
Eligibility
18 Years and older
Enrollment
1,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
13
States / cities
Atlanta, Georgia • Chicago, Illinois • Jefferson, Louisiana + 10 more
Source: ClinicalTrials.gov public record
Updated Jul 27, 2021 · Synced Oct 13, 2026, 12:42 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

COVID-19 Bivalent Booster Megastudy

NCT05607082
View directory record Official record
Conditions
COVID-19
Interventions
COVID Booster text messages
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
2,600,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 3, 2023 · Synced Oct 13, 2026, 12:42 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Understanding Immunity to the Flu Vaccine in COVID-19 Patients

NCT04579588
View directory record Official record
Conditions
Corona Virus Infection, Flu Vaccine, Immunity
Interventions
Flu shot
Biological
Lead sponsor
Stanford University
Other
Eligibility
9 Years to 64 Years
Enrollment
230 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2028
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Mar 18, 2026 · Synced Oct 13, 2026, 12:42 PM EDT