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ClinicalTrials.gov public records Last synced Sep 28, 2026, 4:57 PM EDT

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Showing 1–24 of 3,393 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Respiratory Tract Viral Infections Clear all
Completed Phase 3 Interventional Results available

Dapagliflozin in Respiratory Failure in Patients With COVID-19

NCT04350593
View directory record Official record
Conditions
COVID-19
Interventions
Dapagliflozin 10 milligram (mg), Placebo
Drug
Lead sponsor
Saint Luke's Health System
Other
Eligibility
18 Years and older
Enrollment
1,250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
22
States / cities
Fairhope, Alabama • Miami, Florida • Evanston, Illinois + 18 more
Source: ClinicalTrials.gov public record
Updated Jun 9, 2022 · Synced Sep 28, 2026, 4:57 PM EDT
Terminated Phase 2 Interventional Results available

Study of Immunomodulation Using Naltrexone and Ketamine for COVID-19

NCT04365985
View directory record Official record
Conditions
COVID-19, Acute Respiratory Distress Syndrome, Severe Acute Respiratory Syndrome (SARS), Coronavirus Infections
Interventions
Naltrexone, Ketamine, Placebo
Drug · Other
Lead sponsor
Corewell Health East
Other
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Royal Oak, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 25, 2022 · Synced Sep 28, 2026, 4:57 PM EDT
Completed Phase 2 Interventional

Efficacy and Safety of Norketotifen in Uncomplicated Influenza-like Illness

NCT04610047
View directory record Official record
Conditions
Influenza, Influenza -Like Illness
Interventions
Norketotifen, Placebo
Drug
Lead sponsor
Emergo Therapeutics, Inc.
Industry
Eligibility
18 Years to 64 Years
Enrollment
315 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
20
States / cities
Phoenix, Arizona • Los Angeles, California • DeBary, Florida + 15 more
Source: ClinicalTrials.gov public record
Updated Jan 29, 2023 · Synced Sep 28, 2026, 4:57 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

A Virtual Prospective Study Exploring Activity Trackers and COVID-19 Infections

NCT04623138
View directory record Official record
Conditions
Covid19, SARS-CoV Infection
Interventions
Not listed
Lead sponsor
Evidation Health
Industry
Eligibility
18 Years and older
Enrollment
847 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
San Mateo, California
Source: ClinicalTrials.gov public record
Updated Jan 10, 2022 · Synced Sep 28, 2026, 4:57 PM EDT
Not listed No phase listed Observational

Change in Antibody Levels Following SARS-CoV-2 (Covid-19) Vaccinations

NCT04944095
View directory record Official record
Conditions
Covid-19, Subjects Vaccinated Against Covid-19
Interventions
Change in SARS-CoV-2 Antibody Levels
Other
Lead sponsor
Dr. Sidney J. Stohs
Other
Eligibility
55 Years and older
Enrollment
10,000 participants
Timeline
2021 – 2024
U.S. locations
1
States / cities
Southlake, Texas
Source: ClinicalTrials.gov public record
Updated Aug 28, 2022 · Synced Sep 28, 2026, 4:57 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Home Testing of Respiratory Illness

NCT04245800
View directory record Official record
Conditions
Influenza -Like Illness, Influenza A, Influenza Type B, Respiratory Viral Infection, Respiratory Tract Infections
Interventions
Not listed
Lead sponsor
Evidation Health
Industry
Eligibility
18 Years and older
Enrollment
5,233 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
San Mateo, California
Source: ClinicalTrials.gov public record
Updated Jul 21, 2020 · Synced Sep 28, 2026, 4:57 PM EDT
Completed No phase listed Observational

Viral Infection and Respiratory Illness Universal Study[VIRUS]: COVID-19 Registry

NCT04323787
View directory record Official record
Conditions
Coronavirus
Interventions
observational
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
Not listed
Enrollment
100,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
4
States / cities
Scottsdale, Arizona • Jacksonville, Florida • Chicago, Illinois + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 26, 2025 · Synced Sep 28, 2026, 4:57 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

A Randomized, Double-Blind, Placebo-Controlled Study to Evaluate Safety of MEDI-559 in Healthy 1 to <24 Month-Old Children

NCT00767416
View directory record Official record
Conditions
Healthy
Interventions
MEDI-559, Placebo
Biological · Other
Lead sponsor
MedImmune LLC
Industry
Eligibility
1 Month to 23 Months
Enrollment
116 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
75
States / cities
Greenville, Alabama • Huntsville, Alabama • Mobile, Alabama + 62 more
Source: ClinicalTrials.gov public record
Updated Jul 19, 2016 · Synced Sep 28, 2026, 4:57 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity Among Healthy Children Receiving Fluzone® Influenza Virus Vaccine (2012-2013 Formulation)

NCT01691326
View directory record Official record
Conditions
Influenza
Interventions
Fluzone®: Influenza Virus Vaccine, No Preservative: Pediatric Dose, Fluzone®; Influenza Virus Vaccine, No Preservative
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
6 Months to 8 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
2
States / cities
Bardstown, Kentucky • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 15, 2014 · Synced Sep 28, 2026, 4:57 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Study of Fluzone® Quadrivalent, Fluzone® Intradermal, and Fluzone® High-Dose Influenza Virus Vaccines in Adults

NCT01946438
View directory record Official record
Conditions
Influenza
Interventions
Fluzone® Quadrivalent, Influenza Virus Vaccine (2013-2014 formulation),, Fluzone® Intradermal, Influenza Virus Vaccine (2013-2014 formulation),, Fluzone® High-Dose, Influenza Virus Vaccine (2013-2014 formulation)
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
208 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
4
States / cities
Santa Rosa, California • Council Bluffs, Iowa • Metairie, Louisiana + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 24, 2014 · Synced Sep 28, 2026, 4:57 PM EDT
Completed Not applicable Interventional

Sample Collection for Evaluation of the Panbio™ COVID-19/ Flu A&B Rapid Panel.

NCT05354115
View directory record Official record
Conditions
COVID-19, Influenza A, Influenza Type B
Interventions
Nasal and Nasopharyngeal Sampling of the Panbio™ COVID-19/ Flu A&B Rapid Panel
Diagnostic Test
Lead sponsor
Abbott Rapid Dx
Industry
Eligibility
14 Years to 100 Years
Enrollment
676 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Easley, South Carolina
Source: ClinicalTrials.gov public record
Updated Nov 8, 2023 · Synced Sep 28, 2026, 4:57 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Demonstrate the Superiority of the Immune Response of Adjuvanted Influenza Vaccine Induced in an Adult Population

NCT00377585
View directory record Official record
Conditions
Influenza
Interventions
Fluarix, adjuvanted influenza vaccine
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
3,350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
10
States / cities
Clearwater, Florida • Coral Gables, Florida • Milford, Massachusetts + 7 more
Source: ClinicalTrials.gov public record
Updated Apr 23, 2017 · Synced Sep 28, 2026, 4:57 PM EDT
Completed Phase 2 Interventional Results available

A Study of EDP-938 in Non-hospitalized Adults With RSV Who Are at High Risk for Complications.

NCT05568706
View directory record Official record
Conditions
RSV Infection
Interventions
EDP-938, Placebo
Drug
Lead sponsor
Enanta Pharmaceuticals, Inc
Industry
Eligibility
18 Years and older
Enrollment
187 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
31
States / cities
Tempe, Arizona • Fresno, California • Lomita, California + 26 more
Source: ClinicalTrials.gov public record
Updated Aug 18, 2026 · Synced Sep 28, 2026, 4:57 PM EDT
Completed Phase 2 Interventional Results available

Evaluating Safety, Pharmacokinetics and Clinical Benefit of Silmitasertib (CX-4945) in Subjects With Moderate COVID-19

NCT04663737
View directory record Official record
Conditions
Covid19
Interventions
Silmitasertib, SOC
Drug
Lead sponsor
Senhwa Biosciences, Inc.
Industry
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Gainesville, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 15, 2025 · Synced Sep 28, 2026, 4:57 PM EDT
Terminated Phase 3 Interventional Results available

Losmapimod Safety and Efficacy in COVID-19

NCT04511819
View directory record Official record
Conditions
COVID-19
Interventions
Losmapimod oral tablet, Placebo oral tablet
Drug
Lead sponsor
Fulcrum Therapeutics
Industry
Eligibility
40 Years and older
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
7
States / cities
Irvine, California • Miami, Florida • Tampa, Florida + 2 more
Source: ClinicalTrials.gov public record
Updated Mar 12, 2024 · Synced Sep 28, 2026, 4:57 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Augmentation of Immune Response to COVID-19 mRNA Vaccination Through OMT With Lymphatic Pumps

NCT04928456
View directory record Official record
Conditions
Covid19
Interventions
Osteopathic Manipulative Treatment (OMT)
Other
Lead sponsor
Western University of Health Sciences
Other
Eligibility
18 Years to 65 Years
Enrollment
92 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Pomona, California
Source: ClinicalTrials.gov public record
Updated Apr 25, 2024 · Synced Sep 28, 2026, 4:57 PM EDT
Completed No phase listed Observational

Long-term Impact in Intensive Care Survivors of Coronavirus Disease (COVID-19)

NCT05175339
View directory record Official record
Conditions
COVID-19
Interventions
Not listed
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
26 participants
Timeline
2021 – 2023
U.S. locations
2
States / cities
Baltimore, Maryland • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Nov 17, 2023 · Synced Sep 28, 2026, 4:57 PM EDT
Not listed No phase listed Observational

Compassionate Use of Hyperbaric Oxygen Therapy

NCT04386265
View directory record Official record
Conditions
COVID-19
Interventions
Not listed
Lead sponsor
SerenaGroup, Inc.
Network
Eligibility
18 Years and older
Enrollment
100 participants
Timeline
2020 – 2022
U.S. locations
10
States / cities
Batesville, Arkansas • Monterey, California • Tampa, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Oct 22, 2020 · Synced Sep 28, 2026, 4:57 PM EDT
Recruiting Phase 3 Interventional

A Clinical Study of Molnupiravir to Prevent Severe Illness From Coronavirus Disease 2019 (COVID-19) in People Who Are High Risk (MK-4482-023)

NCT06667700
View directory record Official record
Conditions
Coronavirus Disease (COVID-19)
Interventions
Molnupiravir, Placebo
Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
3,082 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2031
U.S. locations
71
States / cities
Cullman, Alabama • Paradise Valley, Arizona • Phoenix, Arizona + 58 more
Source: ClinicalTrials.gov public record
Updated Sep 23, 2026 · Synced Sep 28, 2026, 4:57 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study With Quadrivalent Recombinant Influenza Vaccine (RIV4) in Participants 9 Through 49 Years of Age.

NCT05513053
View directory record Official record
Conditions
Influenza Immunization
Interventions
Quadrivalent Recombinant influenza vaccine (RIV4) season/2022-2023/NH
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
9 Years to 49 Years
Enrollment
1,308 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
21
States / cities
Birmingham, Alabama • Jonesboro, Arkansas • San Diego, California + 16 more
Source: ClinicalTrials.gov public record
Updated Sep 8, 2025 · Synced Sep 28, 2026, 4:57 PM EDT
Withdrawn Not applicable Interventional

Hyperbaric Oxygen Therapy (HBOT) as a Treatment for COVID-19 (COVID-19) Infection

NCT04343183
View directory record Official record
Conditions
COVID-19
Interventions
Hyperbaric Oxygen Therapy
Device
Lead sponsor
Ochsner Health System
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Apr 11, 2023 · Synced Sep 28, 2026, 4:57 PM EDT
Completed Phase 1 Interventional

Study of Intravenous Administration of Allogeneic Adipose Stem Cells for COVID-19

NCT04486001
View directory record Official record
Conditions
Covid19
Interventions
PSC-04
Biological
Lead sponsor
Sorrento Therapeutics, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Fresno, California
Source: ClinicalTrials.gov public record
Updated Mar 16, 2022 · Synced Sep 28, 2026, 4:57 PM EDT
Completed Not applicable Interventional

The Burden of COVID-19 Survivorship

NCT04913129
View directory record Official record
Conditions
Covid19
Interventions
Exercise Training
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
21 Years to 75 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Mar 27, 2025 · Synced Sep 28, 2026, 4:57 PM EDT
Terminated No phase listed Observational

Acute Viral Respiratory Infections in Elderly

NCT00170495
View directory record Official record
Conditions
Respiratory Infections, Acute
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
65 Years and older
Enrollment
3,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 26, 2010 · Synced Sep 28, 2026, 4:57 PM EDT