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ClinicalTrials.gov public records Last synced Oct 4, 2026, 8:52 PM EDT

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

Showing 49–72 of 2,043 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Coronavirus Disease Clear all
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study to Compare the Immunogenicity and Safety of 3 Lots of NVX-CoV2373 in Adults

NCT05463068
View directory record Official record
Conditions
COVID-19, SARS-CoV-2 Infection
Interventions
NVX-Cov2373
Drug
Lead sponsor
Novavax
Industry
Eligibility
18 Years to 49 Years
Enrollment
911 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
30
States / cities
Long Beach, California • Sacramento, California • DeLand, Florida + 26 more
Source: ClinicalTrials.gov public record
Updated Apr 17, 2026 · Synced Oct 4, 2026, 8:52 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 4, 2026, 8:52 PM EDT
Terminated Phase 1Phase 2 Interventional

RAPA-501-Allo Therapy of COVID-19-ARDS

NCT04482699
View directory record Official record
Conditions
Severe COVID-19 Disease
Interventions
RAPA-501-Allo off-the-shelf Therapy of COVID-19, Placebo
Biological · Other
Lead sponsor
Rapa Therapeutics LLC
Industry
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Hackensack, New Jersey
Source: ClinicalTrials.gov public record
Updated Nov 11, 2021 · Synced Oct 4, 2026, 8:52 PM EDT
Not listed No phase listed Observational

National Vaccine Adverse Event Reporting Survey and Etiology

NCT05095844
View directory record Official record
Conditions
COVID-19, Vaccine Adverse Reaction, Vaccine Reaction, Vaccine or Biological Substance, Unspecified Causing Adverse Effects in Therapeutic Use, Corona Virus Infection, Blood Clot, Thrombocytopenia, Neuritis, Vasculitis, Influenza, Guillain-Barré, GWAS, Genetic Sequencing
Interventions
vaccinated
Biological
Lead sponsor
Neuroganics LLC
Industry
Eligibility
5 Years to 99 Years
Enrollment
100,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Northglenn, Colorado
Source: ClinicalTrials.gov public record
Updated Mar 18, 2022 · Synced Oct 4, 2026, 8:52 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

COVID-19: A Prevalence Study of Two ART Centres After the Pandemic Lockdown in the USA (COVID-19 Free Clinics)

NCT04466644
View directory record Official record
Conditions
COVID-19
Interventions
ELISA, RT-PCR
Diagnostic Test
Lead sponsor
Igenomix
Industry
Eligibility
18 Years and older
Enrollment
340 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
2
States / cities
Boston, Massachusetts • Pleasant Grove, Utah
Source: ClinicalTrials.gov public record
Updated Sep 14, 2020 · Synced Oct 4, 2026, 8:52 PM EDT
Active, not recruiting No phase listed Observational

Duke COVID-19 Shared Data and Specimen Repository

NCT04368234
View directory record Official record
Conditions
COVID-19
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
Not listed
Enrollment
100,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2028
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 3, 2026 · Synced Oct 4, 2026, 8:52 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Safety, Reactogenicity, and Immunogenicity Study of mRNA-1045 (Influenza and Respiratory Syncytial Virus [RSV]) or mRNA-1230 (Influenza, RSV, and Severe Acute Respiratory Syndrome Coronavirus 2 [SARS-CoV-2]) Vaccine in Adults 50 to 75 Years Old

NCT05585632
View directory record Official record
Conditions
SARS-CoV-2, Influenza, RSV
Interventions
mRNA-1010, mRNA-1345, mRNA-1273.214, mRNA-1045, mRNA-1230
Biological
Lead sponsor
ModernaTX, Inc.
Industry
Eligibility
50 Years to 75 Years
Enrollment
392 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
14
States / cities
DeLand, Florida • Hollywood, Florida • St. Petersburg, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Mar 8, 2024 · Synced Oct 4, 2026, 8:52 PM EDT
Completed No phase listed Observational

Incidence and Predictors of Acute and Chronic Complications in Patients With Diabetes and Severe COVID-19

NCT05200819
View directory record Official record
Conditions
Covid19, Diabetes Mellitus
Interventions
Not listed
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 13, 2023 · Synced Oct 4, 2026, 8:52 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Stress and Recovery in Frontline COVID-19 Workers

NCT04713111
View directory record Official record
Conditions
Covid19, Stress, Wearables
Interventions
Lifestyle (Meditation), Lifestyle (Exercise)
Behavioral
Lead sponsor
4YouandMe
Other
Eligibility
18 Years and older
Enrollment
383 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Mar 12, 2021 · Synced Oct 4, 2026, 8:52 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Text-based Interventions to Promote COVID-19 Vaccinations

NCT04800965
View directory record Official record
Conditions
Covid19, Vaccines
Interventions
Patient MyChart Scheduling Link, Patient Educational Video, Enhanced Follow through Message
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
200,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Westwood, Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 13, 2022 · Synced Oct 4, 2026, 8:52 PM EDT
Recruiting Not applicable Interventional

Percutaneous Electrical Nerve Field Stimulation (PENFS) in Patients With Post Concussion Syndrome (PCS)

NCT04978571
View directory record Official record
Conditions
Post-Concussion Syndrome, COVID Long-Haul, COVID-19
Interventions
percutaneous electrical nerve-field stimulation, PENFS, percutaneous electrical nerve-field stimulation, PENFS (sham device), percutaneous electrical nerve-field stimulation, PENFS (COVID active device)
Device
Lead sponsor
Children's Hospital of Orange County
Other
Eligibility
11 Years to 18 Years
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Orange, California
Source: ClinicalTrials.gov public record
Updated Mar 18, 2026 · Synced Oct 4, 2026, 8:52 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity Study of a SARS-CoV-2 (COVID-19) Variant Vaccine (mRNA-1273.351) in Naïve and Previously Vaccinated Adults

NCT04785144
View directory record Official record
Conditions
COVID-19, COVID-19 Immunisation
Interventions
mRNA-1273, mRNA-1273.351
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 99 Years
Enrollment
135 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
4
States / cities
Decatur, Georgia • Cincinnati, Ohio • Nashville, Tennessee + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 18, 2024 · Synced Oct 4, 2026, 8:52 PM EDT
Completed No phase listed Observational

COVID-19 PRIORITY (Pregnancy CoRonavIrus Outcomes RegIsTrY)

NCT04323839
View directory record Official record
Conditions
Pregnancy, Coronavirus, COVID-19
Interventions
Pregnant women under investigation for Coronavirus or diagnosed with COVID-19, Postpartum women under investigation for Coronavirus or diagnosed with COVID-19
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
13 Years and older · Female only
Enrollment
1,333 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 8, 2024 · Synced Oct 4, 2026, 8:52 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Changes in Seroprevalence and Wellness Over Time in Healthcare Workers (CONSERVE-HCW)

NCT04595175
View directory record Official record
Conditions
COVID-19 Infection
Interventions
Not listed
Lead sponsor
Brian Tiffany, MD
Other
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Chandler, Arizona
Source: ClinicalTrials.gov public record
Updated Oct 20, 2020 · Synced Oct 4, 2026, 8:52 PM EDT
Completed Phase 3 Interventional Results available

Adaptive COVID-19 Treatment Trial 3 (ACTT-3)

NCT04492475
View directory record Official record
Conditions
COVID-19
Interventions
Interferon beta-1a, Placebo, Remdesivir
Drug · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 99 Years
Enrollment
969 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
55
States / cities
Birmingham, Alabama • Fresno, California • La Jolla, California + 45 more
Source: ClinicalTrials.gov public record
Updated Mar 14, 2022 · Synced Oct 4, 2026, 8:52 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Intranasal Heparin Tolerability Study

NCT04490239
View directory record Official record
Conditions
Covid19
Interventions
Intranasal heparin sodium (porcine)
Drug
Lead sponsor
Joshua Sharp
Other
Eligibility
18 Years to 65 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
University, Mississippi
Source: ClinicalTrials.gov public record
Updated Apr 30, 2021 · Synced Oct 4, 2026, 8:52 PM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

A Trial Evaluating the Safety and Effects of an RNA Vaccine ARCT-021 in Healthy Adults

NCT04668339
View directory record Official record
Conditions
Covid19, SARS-CoV Infection, Corona Virus Infection
Interventions
ARCT-021 single dose priming, ARCT-021 two lower dose priming, ARCT-021 two higher dose priming, Placebo (two doses), priming, Randomized booster, Placebo booster
Biological
Lead sponsor
Arcturus Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
581 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
12
States / cities
Chandler, Arizona • Tucson, Arizona • San Diego, California + 9 more
Source: ClinicalTrials.gov public record
Updated May 15, 2025 · Synced Oct 4, 2026, 8:52 PM EDT
Completed Not applicable Interventional Results available

Early PP With HFNC Versus HFNC in COVID-19 Induced Moderate to Severe ARDS

NCT04325906
View directory record Official record
Conditions
Prone Positioning, High Flow Nasal Cannula, Acute Respiratory Distress Syndrome, Corona Virus Infection
Interventions
high flow nasal cannula (HFNC), Prone positioning (PP)
Device · Procedure
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years and older
Enrollment
224 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 2, 2022 · Synced Oct 4, 2026, 8:52 PM EDT
Terminated Phase 2 Interventional Results available

Study for the Use of the IL-6 Inhibitor Clazakizumab in Patients With Life-threatening COVID-19 Infection

NCT04381052
View directory record Official record
Conditions
COVID-19
Interventions
Clazakizumab, Placebo
Drug · Other
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 8, 2022 · Synced Oct 4, 2026, 8:52 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 4, 2026, 8:52 PM EDT
Completed No phase listed Observational Results available

A Prospective "Universal" Observational Database for COVID-19

NCT04347993
View directory record Official record
Conditions
COVID-19
Interventions
Not listed
Lead sponsor
Hackensack Meridian Health
Other
Eligibility
Not listed
Enrollment
4,588 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Hackensack, New Jersey
Source: ClinicalTrials.gov public record
Updated Sep 3, 2024 · Synced Oct 4, 2026, 8:52 PM EDT
Completed No phase listed Observational

Registry of Seraph®-100 Microbind® Affinity Blood Filter for COVID-19 Under EUA

NCT04413955
View directory record Official record
Conditions
COVID-19, SARS-CoV 2
Interventions
Seraph®-100 Microbind® Affinity Blood Filter
Device
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 13, 2025 · Synced Oct 4, 2026, 8:52 PM EDT
Active, not recruiting Not applicable Interventional Results available

Home-based Brain Stimulation Treatment for Post-acute Sequelae of COVID-19 (PASC)

NCT05092516
View directory record Official record
Conditions
Dysexecutive Syndrome, Post-Acute Sequelae of COVID-19
Interventions
Active tDCS, Sham tDCS
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Charlestown, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 17, 2026 · Synced Oct 4, 2026, 8:52 PM EDT
Completed Phase 2 Interventional Results available

NBT-NM108 as an Early Treatment for Suspected or Confirmed Symptomatic COVID-19 Patients

NCT04540406
View directory record Official record
Conditions
Suspected or Confirmed COVID-19
Interventions
NBT-NM108, Usual Care Only
Drug · Other
Lead sponsor
Notitia Biotechnologies Company
Industry
Eligibility
18 Years to 79 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Oct 8, 2024 · Synced Oct 4, 2026, 8:52 PM EDT