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ClinicalTrials.gov public records Last synced Oct 21, 2026, 1:44 PM EDT

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

Showing 1177–1200 of 1,235 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV2) Clear all
Completed No phase listed Observational

Comparison of Viral Particle Dispersion Following Administration of an MDI or Nebulizer in Subjects With COVID-19

NCT04681079
View directory record Official record
Conditions
COVID-19
Interventions
albuterol sulfate (MDI), albuterol sulfate (nebulizer)
Drug
Lead sponsor
Theravance Biopharma
Industry
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jan 28, 2022 · Synced Oct 21, 2026, 1:44 PM EDT
Completed Phase 1Phase 2 Interventional Results available

PVP-I Nasal Sprays and SARS-CoV-2 Nasopharyngeal Titers (for COVID-19)

NCT04347954
View directory record Official record
Conditions
COVID-19
Interventions
Povidone-Iodine 2%, Povidone-Iodine 0.5%, Isotonic saline 0.9%
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Oct 21, 2021 · Synced Oct 21, 2026, 1:44 PM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

KIDney Injury in Times of COVID-19 (KIDCOV)

NCT04705766
View directory record Official record
Conditions
SARS-CoV Infection, Covid19, Corona Virus Infection, Acute Kidney Injury, Kidney Injury
Interventions
Urine Collection
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
3
States / cities
San Francisco, California • Chicago, Illinois • Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 11, 2026 · Synced Oct 21, 2026, 1:44 PM EDT
Completed Phase 2 Interventional Results available

The Safety of Administering a Second Dose of a COVID-19 mRNA Vaccine in Individuals Who Experienced a Systemic Allergic Reaction to an Initial Dose

NCT04977479
View directory record Official record
Conditions
Systemic Allergic Reaction
Interventions
Pfizer-BioNTech COVID-19 Vaccine (Comirnaty), Placebo, Pfizer-BioNTech COVID-19 Vaccine, Bivalent
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
16 Years to 69 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 16, 2023 · Synced Oct 21, 2026, 1:44 PM EDT
Completed No phase listed Observational

Symptom Tracking in Long COVID Patients Using Formula C™ Sublingual Drops

NCT06163690
View directory record Official record
Conditions
Long COVID, Long Covid19, Post-Acute COVID-19, Post-Acute COVID-19 Syndrome, Long Haul COVID, Long-Haul COVID-19
Interventions
Endourage Targeted Wellness Formula C™, a full hemp flower extract
Combination Product
Lead sponsor
Endourage, LLC
Industry
Eligibility
21 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 25, 2025 · Synced Oct 21, 2026, 1:44 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Study to Investigate the Mass Balance, Metabolism, and Excretion of [14C]-PF-07304814 in Healthy Participants

NCT05050682
View directory record Official record
Conditions
Healthy
Interventions
PF-07304814
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 55 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 20, 2025 · Synced Oct 21, 2026, 1:44 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Modifying Adiposity Through Behavioral Strategies to Improve COVID-19 Rehabilitation

NCT05880108
View directory record Official record
Conditions
Post-COVID Conditions, Obesity
Interventions
12-weeks of Weight Loss, 12-weeks of Weight Stability
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
Up to 80 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2029
U.S. locations
2
States / cities
Baltimore, Maryland • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Oct 21, 2026, 1:44 PM EDT
Completed Phase 3 Interventional Results available

Study of Efficacy and Safety of Canakinumab Treatment for CRS in Participants With COVID-19-induced Pneumonia

NCT04362813
View directory record Official record
Conditions
Cytokine Release Syndrome (CRS) in Patients With COVID-19-induced Pneumonia
Interventions
Canakinumab, Placebo
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
454 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
15
States / cities
Birmingham, Alabama • Glendale, California • San Francisco, California + 10 more
Source: ClinicalTrials.gov public record
Updated Jan 24, 2022 · Synced Oct 21, 2026, 1:44 PM EDT
Completed Phase 2 Interventional Results available

Double-blind Study to Evaluate the Safety and Efficacy of Antroquinonol in Mild-Moderate COVID-19 Hospitalized Patients

NCT04523181
View directory record Official record
Conditions
Covid-19
Interventions
Antroquinonol, Placebo
Drug · Other
Lead sponsor
Golden Biotechnology Corporation
Industry
Eligibility
18 Years to 80 Years
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
5
States / cities
Michigan City, Indiana • Wichita, Kansas • Rockville, Maryland + 2 more
Source: ClinicalTrials.gov public record
Updated Dec 13, 2023 · Synced Oct 21, 2026, 1:44 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study of Ad26.COV2.S for the Prevention of SARS-CoV-2-Mediated COVID-19 in Adult Participants

NCT04505722
View directory record Official record
Conditions
Participants With or Without Stable Co-morbidities Associated With Progression to Severe COVID-19 at Different Stages of the Protocol
Interventions
Ad26.COV2.S, Placebo
Biological · Other
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
18 Years and older
Enrollment
44,325 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
117
States / cities
Birmingham, Alabama • Huntsville, Alabama • Glendale, Arizona + 77 more
Source: ClinicalTrials.gov public record
Updated Feb 4, 2025 · Synced Oct 21, 2026, 1:44 PM EDT
Not listed No phase listed Observational

Simulation of Risk of Adverse Drug Events Associated With the Initiation of Drugs Repurposed for the Treatment of COVID-19 in Adults With Polypharmacy Using Data From Large Medicare and Commercially Insured Populations

NCT04378881
View directory record Official record
Conditions
COVID, Drug Effect, Drug Interaction, Adverse Drug Event
Interventions
Not listed
Lead sponsor
Tabula Rasa HealthCare
Industry
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Sep 2, 2022 · Synced Oct 21, 2026, 1:44 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 21, 2026, 1:44 PM EDT
Recruiting Phase 2 Interventional

LIFT: Life Improvement Trial

NCT06366724
View directory record Official record
Conditions
ME/CFS, Long COVID, PASC
Interventions
Pyridostigmine, Low-Dose Naltrexone, Placebo
Drug · Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 15, 2026 · Synced Oct 21, 2026, 1:44 PM EDT
Completed No phase listed Observational

Improving Brain Stimulation Through Imaging

NCT03851380
View directory record Official record
Conditions
Depression, Depressive Disorder, Treatment-Resistant, COVID Stress, PTSD - Post Traumatic Stress Disorder
Interventions
Psychological / Functional Assessment, Structural and Functional MRI, Transcranial Magnetic Brain Stimulation and MR Image Guidance, Transcranial Electrical Stimulation (tES)
Behavioral · Other · Device
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 89 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Aug 3, 2026 · Synced Oct 21, 2026, 1:44 PM EDT
Completed Phase 2 Interventional Results available

A Study of Opaganib in Coronavirus Disease 2019 Pneumonia

NCT04414618
View directory record Official record
Conditions
Coronavirus Infections
Interventions
Opaganib, Placebo
Drug
Lead sponsor
RedHill Biopharma Limited
Industry
Eligibility
18 Years to 80 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
8
States / cities
Scottsdale, Arizona • Miami, Florida • Detroit, Michigan + 3 more
Source: ClinicalTrials.gov public record
Updated Mar 21, 2022 · Synced Oct 21, 2026, 1:44 PM EDT
Completed Not applicable Interventional

Improving Attention in Individuals With Long COVID-19

NCT06503874
View directory record Official record
Conditions
Long Covid
Interventions
Attention Training, Music Group
Other
Lead sponsor
Shirley Ryan AbilityLab
Other
Eligibility
18 Years to 75 Years
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 2, 2026 · Synced Oct 21, 2026, 1:44 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Exercise in Child Health

NCT05359991
View directory record Official record
Conditions
Cystic Fibrosis, Sickle Cell Disease, SARS CoV 2 Infection
Interventions
Exercise
Other
Lead sponsor
University of California, Irvine
Other
Eligibility
10 Years to 17 Years
Enrollment
240 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2027
U.S. locations
1
States / cities
Irvine, California
Source: ClinicalTrials.gov public record
Updated Oct 2, 2026 · Synced Oct 21, 2026, 1:44 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Safe and Healthy Schools

NCT05105789
View directory record Official record
Conditions
Sars-CoV-2 Infection, COVID-19
Interventions
BinaxNOW Test, "Lollipop" swab
Diagnostic Test
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
4 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated May 22, 2024 · Synced Oct 21, 2026, 1:44 PM EDT
Terminated Phase 2 Interventional Results available

Pragmatic Factorial Trial of Hydroxychloroquine, Azithromycin, or Both for Treatment of Severe SARS-CoV-2 Infection

NCT04335552
View directory record Official record
Conditions
SARS-CoV-2
Interventions
Standard of care, Hydroxychloroquine, Azithromycin
Other · Drug
Lead sponsor
Duke University
Other
Eligibility
12 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
4
States / cities
Durham, North Carolina • Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated May 17, 2021 · Synced Oct 21, 2026, 1:44 PM EDT
Terminated Phase 2 Interventional Results available

Prazosin to Prevent COVID-19 (PREVENT-COVID Trial)

NCT04365257
View directory record Official record
Conditions
COVID-19
Interventions
Prazosin, Standard of care
Drug · Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
45 Years to 85 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 10, 2023 · Synced Oct 21, 2026, 1:44 PM EDT
Completed No phase listed Observational

A Study to Assess Infection Rate of Severe Acute Respiratory Syndrome - CoronaVirus 2 (SARS-CoV-2) and It's Affect on Quality of Life in Adult Volunteers in Lake County, Illinois

NCT04611230
View directory record Official record
Conditions
Severe Acute Respiratory Syndrome - CoronaVirus 2 (SARS-CoV-2)
Interventions
Not listed
Lead sponsor
AbbVie
Industry
Eligibility
18 Years and older
Enrollment
1,007 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 10, 2022 · Synced Oct 21, 2026, 1:44 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity Study of 20vPnC When Coadministered With a Booster Dose of BNT162b2

NCT04887948
View directory record Official record
Conditions
Pneumococcal Disease, COVID-19, SARS-CoV-2 Infection
Interventions
20-valent pneumococcal conjugate vaccine (20vPnC), BNT162b2, Saline
Biological · Other
Lead sponsor
Pfizer
Industry
Eligibility
65 Years and older
Enrollment
570 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
27
States / cities
Anaheim, California • Walnut Creek, California • Coral Gables, Florida + 21 more
Source: ClinicalTrials.gov public record
Updated Dec 14, 2022 · Synced Oct 21, 2026, 1:44 PM EDT
Completed No phase listed Observational

Immunogenicity and Safety of Commercially Available Vaccines Against SARS-CoV-2 (COVID-19) in Patients With Hematologic Malignancies

NCT04748185
View directory record Official record
Conditions
Monoclonal B-Cell Lymphocytosis, Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma, B-cell Non Hodgkin Lymphoma, Hodgkin Lymphoma
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
358 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 10, 2023 · Synced Oct 21, 2026, 1:44 PM EDT
Withdrawn Phase 2 Interventional

RepurpoSing Old Drugs TO SuppRess a Modern Threat: COVID-19 STORM

NCT04433078
View directory record Official record
Conditions
Cytokine Storm, SARS-CoV-2
Interventions
Doxycycline, Placebo
Drug
Lead sponsor
Temple University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 19, 2021 · Synced Oct 21, 2026, 1:44 PM EDT