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ClinicalTrials.gov public records Last synced Sep 17, 2026, 5:15 AM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Respiratory Virus Clear all
Terminated Phase 2 Interventional

Ultramicronized Palmitoylethanolamide (PEA) Treatment in Hospitalized Participants With COVID-19

NCT04619706
View directory record Official record
Conditions
COVID-19
Interventions
FSD201, Placebo, Standard of Care for Covid-19
Drug · Other
Lead sponsor
Quantum Biopharma
Industry
Eligibility
18 Years and older
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
10
States / cities
Miami, Florida • St. Petersburg, Florida • Idaho Falls, Idaho + 6 more
Source: ClinicalTrials.gov public record
Updated Dec 4, 2022 · Synced Sep 17, 2026, 5:15 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Topical Antibacterial Agents for Prevention of COVID-19

NCT05449392
View directory record Official record
Conditions
COVID-19, SARS-CoV2 Infection
Interventions
Neosporin, Vaseline
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
18 Years to 60 Years
Enrollment
67 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 2, 2023 · Synced Sep 17, 2026, 5:15 AM EDT
Completed Phase 4 Interventional Results available

Hypertonic Saline for Acute Bronchiolitis

NCT01247064
View directory record Official record
Conditions
Bronchiolitis, Viral, Saline Solution, Hypertonic
Interventions
Nebulized 3% saline, Nebulized 0.9% Normal Saline
Drug
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
2 Months to 23 Months
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 18, 2014 · Synced Sep 17, 2026, 5:15 AM EDT
Active, not recruiting Phase 2 Interventional

Sodium Citrate in Smell Retraining for People With Post-COVID-19 Olfactory Dysfunction

NCT06204432
View directory record Official record
Conditions
Long Haul COVID-19, Post-Acute COVID-19 Syndrome, Anosmia, Olfaction Disorders
Interventions
Sodium Citrate, Normal Saline, Olfactory Training Kit - "The Olfactory Kit, by AdvancedRx"
Drug · Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 19, 2025 · Synced Sep 17, 2026, 5:15 AM EDT
Completed Phase 2 Interventional

Phase 2B Study on Safety and Therapeutic Efficacy of DAS181 in Adult Subjects With Naturally Acquired Influenza

NCT01740063
View directory record Official record
Conditions
Influenza
Interventions
DAS181-F02 formulation, DAS181-F04 formulation, Placebo
Drug
Lead sponsor
Ansun Biopharma, Inc.
Industry
Eligibility
18 Years to 70 Years
Enrollment
423 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jul 7, 2019 · Synced Sep 17, 2026, 5:15 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Best Practices to Prevent COVID-19 Illness in Staff and People With Serious Mental Illness and Developmental Disabilities in Congregate Living Settings

NCT04726371
View directory record Official record
Conditions
Intellectual Disability, Developmental Disability, Axis I Diagnosis, Mental Illness, Covid19, Coronavirus
Interventions
Generic Best Practices, Tailored Best Practices
Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
415 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 11, 2025 · Synced Sep 17, 2026, 5:15 AM EDT
Active, not recruiting Not applicable Interventional

A Study of Healthy Microbiome, Healthy Mind

NCT06020703
View directory record Official record
Conditions
Critical Illness, COVID-19, PICS, Cognitive Impairment, Mental Health Impairment, Weakness, Muscle, Dysbiosis
Interventions
Fermented Food Diet
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Sep 17, 2026, 5:15 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers Results available

Dose Ranging Trial to Assess Safety and Immunogenicity of V590 (COVID-19 Vaccine) in Healthy Adults (V590-001)

NCT04569786
View directory record Official record
Conditions
Coronavirus Disease (COVID-19)
Interventions
V590, Placebo
Biological · Other
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
232 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
7
States / cities
Tempe, Arizona • Miami, Florida • South Miami, Florida + 4 more
Source: ClinicalTrials.gov public record
Updated Dec 28, 2021 · Synced Sep 17, 2026, 5:15 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Learn About How Loss of Liver Function Affects the Blood Levels of the Study Medicine Called PF-07817883.

NCT05884554
View directory record Official record
Conditions
COVID-19
Interventions
PF-07817883
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 75 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
6
States / cities
Anaheim, California • Garden Grove, California • Montclair, California + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Sep 17, 2026, 5:15 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety, Tolerability, and PK of Escalating Doses of Flufirvitide-3 Dry Powder for Inhalation in Healthy Subjects

NCT01990846
View directory record Official record
Conditions
Influenza
Interventions
Flufirvitide 3, Placebo for Flufirvitide-3
Drug
Lead sponsor
Autoimmune Technologies, LLC
Industry
Eligibility
18 Years to 50 Years
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Spartanburg, South Carolina
Source: ClinicalTrials.gov public record
Updated Mar 10, 2015 · Synced Sep 17, 2026, 5:15 AM EDT
Terminated Phase 2 Interventional Results available

A Study of Hydroxychloroquine vs Placebo to Prevent COVID-19 Infection in Patients Receiving Radiotherapy

NCT04381988
View directory record Official record
Conditions
COVID-19, Cancer
Interventions
Hydroxychloroquine, Placebo, Radiation therapy
Drug · Other · Radiation
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
7
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Source: ClinicalTrials.gov public record
Updated Oct 26, 2021 · Synced Sep 17, 2026, 5:15 AM EDT
Completed No phase listed Observational

Influenza in People With Normal and Weakened Immune Systems

NCT00533182
View directory record Official record
Conditions
Viral Infections, Respiratory Infections
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
2 Years and older
Enrollment
137 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2022
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 9, 2022 · Synced Sep 17, 2026, 5:15 AM EDT
Completed No phase listed Observational

Respiratory Virus Outpatient Study (FLU 002 Plus)

NCT01056354
View directory record Official record
Conditions
Influenza and Other Novel Respiratory Viruses
Interventions
Not listed
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
11,719 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2017
U.S. locations
17
States / cities
San Diego, California • Denver, Colorado • Washington D.C., District of Columbia + 13 more
Source: ClinicalTrials.gov public record
Updated Aug 17, 2017 · Synced Sep 17, 2026, 5:15 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Simultaneous mRNA COVID-19 and IIV4 Vaccination Study

NCT05028361
View directory record Official record
Conditions
Quality of Life, Injection Site Reaction, Adverse Drug Event, Systemic Reaction
Interventions
mRNA COVID-19, IIV4, Placebo (saline)
Biological · Other
Lead sponsor
Duke University
Other
Eligibility
5 Years and older
Enrollment
348 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
3
States / cities
Baltimore, Maryland • Durham, North Carolina • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 18, 2024 · Synced Sep 17, 2026, 5:15 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Influenza Vaccine in Lung Transplant Patients - Persistence of Antibodies Beyond the Season

NCT04530786
View directory record Official record
Conditions
Influenza
Interventions
Influenza vaccine
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2009
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 22, 2020 · Synced Sep 17, 2026, 5:15 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

An Open Label Study in Adults to Test the Efficacy of Mitoquinone/Mitoquinol Mesylate to Prevent Severe Viral Illness

NCT05381454
View directory record Official record
Conditions
Respiratory Viral Infection, Antiviral Treatment, COVID-19
Interventions
Mitoquinone/mitoquinol mesylate
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Dec 15, 2025 · Synced Sep 17, 2026, 5:15 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of Fluzone® Quadrivalent Vaccine Administered to Healthy Children

NCT02915302
View directory record Official record
Conditions
Influenza
Interventions
Fluzone Quadrivalent vaccine, No Preservative
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
6 Months to 35 Months
Enrollment
1,950 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
35
States / cities
Birmingham, Alabama • Harrisburg, Arkansas • Downey, California + 28 more
Source: ClinicalTrials.gov public record
Updated Mar 28, 2022 · Synced Sep 17, 2026, 5:15 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

MGC Health COVID-19 & Flu A+B Home Multi Test Usability Study

NCT05732610
View directory record Official record
Conditions
COVID-19, Influenza A, Influenza B
Interventions
MGC Health COVID-19 & Flu A+B Home Multi Test, MGC Health COVID-19 & Flu A+B Home Multi Test (2 to 13 y/o)
Diagnostic Test
Lead sponsor
Medical Group Care, LLC
Industry
Eligibility
2 Years and older
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated May 1, 2024 · Synced Sep 17, 2026, 5:15 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Pharmacokinetics, Safety and Tolerability of ALG-097558 in Subjects With Hepatic Impairment and in Healthy Subjects With Normal Hepatic Function

NCT06568861
View directory record Official record
Conditions
COVID-19
Interventions
ALG-097558
Drug
Lead sponsor
Aligos Therapeutics
Industry
Eligibility
18 Years to 75 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
2
States / cities
Miami, Florida • Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Aug 4, 2026 · Synced Sep 17, 2026, 5:15 AM EDT
Terminated Phase 1 Interventional Results available

Pharmacokinetics of Sotrovimab as Pre-exposure Prophylaxis for COVID-19 in Hematopoietic Stem Cell Transplant Recipients, COVIDMAB Study

NCT05135650
View directory record Official record
Conditions
COVID-19 Infection, Hematopoietic and Lymphoid Cell Neoplasm, Malignant Solid Neoplasm
Interventions
Questionnaire Administration, Sotrovimab, Biospecimen Collection
Other · Biological · Procedure
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Feb 12, 2025 · Synced Sep 17, 2026, 5:15 AM EDT
Completed Phase 1 Interventional

Safety and Dose Study of Peramivir for Influenza Treatment

NCT00297050
View directory record Official record
Conditions
Influenza
Interventions
Peramivir
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 17, 2026, 5:15 AM EDT
Terminated Phase 2 Interventional Results available

A Study to Evaluate a Single Intramuscular Dose of Motavizumab to Treat Children With Respiratory Syncytial Virus (RSV) Illness

NCT00435227
View directory record Official record
Conditions
Participants Less Than 12 Months of Age With RSV Illness
Interventions
Motavizumab, Placebo
Biological · Other
Lead sponsor
MedImmune LLC
Industry
Eligibility
0 Months to 12 Months
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
31
States / cities
Tucson, Arizona • Jonesboro, Arkansas • Little Rock, Arkansas + 24 more
Source: ClinicalTrials.gov public record
Updated Aug 16, 2021 · Synced Sep 17, 2026, 5:15 AM EDT
Completed Not applicable Interventional

Adult Influenza Vaccination Text Message Reminders

NCT01942824
View directory record Official record
Conditions
Influenza Vaccination
Interventions
Text Messages
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
7,250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 23, 2014 · Synced Sep 17, 2026, 5:15 AM EDT
Terminated Phase 2 Interventional Results available

Inhaled Nitric Oxide for Preventing Progression in COVID-19

NCT04388683
View directory record Official record
Conditions
COVID-19
Interventions
Nitric Oxide
Drug
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years to 85 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 18, 2022 · Synced Sep 17, 2026, 5:15 AM EDT