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ClinicalTrials.gov public records Last synced Oct 24, 2026, 8:33 AM EDT

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Showing 1–24 of 4,439 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Respiratory Infection Clear all
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 18, 2017 · Synced Oct 24, 2026, 8:33 AM EDT
Completed No phase listed Observational

Initial and Chronic Methicillin Resistant Staphylococcus Aureus (MRSA) Infection in Cystic Fibrosis (CF)

NCT02684422
View directory record Official record
Conditions
Methicillin-Resistant Staphylococcus Aureus, Cystic Fibrosis
Interventions
Intervention N/A. Observational study
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
4 Years to 99 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
3
States / cities
Birmingham, Alabama • Chapel Hill, North Carolina • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jan 20, 2022 · Synced Oct 24, 2026, 8:33 AM EDT
Suspended No phase listed Observational Accepts healthy volunteers

Patients' Attitudes Toward and Experiences With Buprenorphine Treatment

NCT05121428
View directory record Official record
Conditions
Opioid-use Disorder, Acceptability of Health Care, Opioid-Related Disorders
Interventions
Not listed
Lead sponsor
Cambridge Health Alliance
Other
Eligibility
18 Years and older
Enrollment
817 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 11, 2025 · Synced Oct 24, 2026, 8:33 AM EDT
Completed Phase 1 Interventional

A Safety and Tolerability Study of INCAGN02385 in Select Advanced Malignancies

NCT03538028
View directory record Official record
Conditions
Cervical Cancer, Microsatellite Instability (MSI)-High Endometrial Cancer, Gastric Cancer (Including Stomach and Gastroesophageal Junction [GEJ]), Esophageal Cancer, Hepatocellular Carcinoma, Melanoma (Uveal Melanoma Excluded), Merkel Cell Carcinoma, Mesothelioma, MSI-high Colorectal Cancer, Non-small Cell Lung Cancer (NSCLC), Ovarian Cancer, Squamous Cell Carcinoma of the Head and Neck (SCCHN), Small Cell Lung Cancer (SCLC), Renal Cell Carcinoma (RCC), Triple-negative Breast Cancer, Urothelial Carcinoma, Diffuse Large B-cell Lymphoma
Interventions
INCAGN02385
Biological
Lead sponsor
Incyte Biosciences International Sàrl
Industry
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
4
States / cities
Los Angeles, California • Hackensack, New Jersey • Huntersville, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 30, 2020 · Synced Oct 24, 2026, 8:33 AM EDT
Completed Phase 1Phase 2 Interventional

Etanercept for Non-Infectious Lung Injury Following Bone Marrow Transplantation

NCT00029328
View directory record Official record
Conditions
Respiratory Distress Syndrome, Adult, Bronchiolitis Obliterans, Pneumonia
Interventions
etanercept
Drug
Lead sponsor
FDA Office of Orphan Products Development
Federal
Eligibility
12 Months and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2003
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 25, 2015 · Synced Oct 24, 2026, 8:33 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity Study of QIVc in Healthy Pediatric Subjects

NCT04074928
View directory record Official record
Conditions
Influenza, Human, Virus Diseases
Interventions
QIVc, Comparator QIV
Biological
Lead sponsor
Seqirus
Industry
Eligibility
6 Months to 47 Months
Enrollment
2,414 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
47
States / cities
Mobile, Alabama • Anaheim, California • Downey, California + 37 more
Source: ClinicalTrials.gov public record
Updated Jan 12, 2022 · Synced Oct 24, 2026, 8:33 AM 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 24, 2026, 8:33 AM EDT
Active, not recruiting Phase 2 Interventional

COVID-FISETIN: Pilot in SARS-CoV-2 of Fisetin to Alleviate Dysfunction and Inflammation

NCT04476953
View directory record Official record
Conditions
Covid19
Interventions
Placebo, Fisetin
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 14, 2025 · Synced Oct 24, 2026, 8:33 AM EDT
Completed Not applicable Interventional

Coronavirus 2019 (COVID-19)- Using Ascorbic Acid and Zinc Supplementation

NCT04342728
View directory record Official record
Conditions
COVID, Corona Virus Infection
Interventions
Ascorbic Acid, Zinc Gluconate, Ascorbic Acid and Zinc Gluconate, Standard of Care
Dietary Supplement · Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
214 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
2
States / cities
Weston, Florida • Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 16, 2021 · Synced Oct 24, 2026, 8:33 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

NOWDx Test for the Detection of Antibodies to COVID-19 in Lay Persons

NCT04799392
View directory record Official record
Conditions
COVID-19, SARS-CoV-2, Coronavirus
Interventions
NOWDx COVID-19 Test
Device
Lead sponsor
NOWDiagnostics, Inc.
Industry
Eligibility
2 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
5
States / cities
Fayetteville, Arkansas • Anoka, Minnesota • Nixa, Missouri + 2 more
Source: ClinicalTrials.gov public record
Updated Nov 5, 2021 · Synced Oct 24, 2026, 8:33 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Workforce Serosurveillance to Track Long-term Modifications to COVID-19 Exposure Due to Factors in the Built Environment

NCT04542200
View directory record Official record
Conditions
Covid19
Interventions
Antibody testing
Biological
Lead sponsor
Northwell Health
Other
Eligibility
18 Years and older
Enrollment
40,132 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Great Neck, New York
Source: ClinicalTrials.gov public record
Updated Feb 6, 2023 · Synced Oct 24, 2026, 8:33 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Safety and Acceptability of Q GRFT Nasal Spray for COVID-19 Prophylaxis

NCT05180500
View directory record Official record
Conditions
COVID-19, Pharmacokinetics, Safety
Interventions
Q-Griffithsin, Placebo
Drug
Lead sponsor
Sharon Hillier
Other
Eligibility
18 Years to 55 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 23, 2024 · Synced Oct 24, 2026, 8:33 AM EDT
Terminated Not applicable Interventional Results available

AirFLO2 Treatment for Hypoxia and/or Tachypnea in Patients With COVID-19

NCT04649775
View directory record Official record
Conditions
Corona Virus Infection, Respiratory Rate, Hypoxia, Covid19
Interventions
AirFLO2
Device
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 25, 2022 · Synced Oct 24, 2026, 8:33 AM EDT
Not listed Not applicable Interventional

Alteplase for Treatment of Empyema and Complicated Parapneumonic Effusion

NCT00103766
View directory record Official record
Conditions
Empyema, Pleural Effusion
Interventions
Alteplase
Drug
Lead sponsor
O'Brien, Jeana D., MD, FACP, FCCP
Individual
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2004
U.S. locations
1
States / cities
Temple, Texas
Source: ClinicalTrials.gov public record
Updated Aug 1, 2006 · Synced Oct 24, 2026, 8:33 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Annual Study for Collection of Serum Samples in Children and Older Adults Receiving the 2020-2021 Formulations of Fluzone Quadrivalent Vaccine and Fluzone High-Dose Quadrivalent Vaccine, Respectively

NCT04551677
View directory record Official record
Conditions
Influenza Immunization, Healthy Volunteers
Interventions
Fluzone Quadrivalent vaccine, No Preservative (0.5-mL dose), 2020-2021 formulation, Fluzone High-Dose Quadrivalent vaccine (0.7-mL dose), 2020-2021 formulation
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
6 Months to 84 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
2
States / cities
Bardstown, Kentucky • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Sep 12, 2025 · Synced Oct 24, 2026, 8:33 AM EDT
Completed Phase 3 Interventional

Efficacy and Safety of Levalbuterol in Chronic Obstructive Pulmonary Disease (COPD)

NCT00665600
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease (COPD)
Interventions
Levalbuterol HCl, Albuterol Sulfate, Placebo
Drug
Lead sponsor
Sumitomo Pharma America, Inc.
Industry
Eligibility
35 Years to 99 Years
Enrollment
257 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2003
U.S. locations
20
States / cities
Carmichael, California • Spring Valley, California • Wheat Ridge, Colorado + 17 more
Source: ClinicalTrials.gov public record
Updated Jun 27, 2023 · Synced Oct 24, 2026, 8:33 AM EDT
Completed Phase 2 Interventional Results available

Clazakizumab (Anti-Interleukin 6 (IL-6) Monoclonal) Compared to Placebo for Coronavirus Disease 2019 (COVID-19)

NCT04348500
View directory record Official record
Conditions
COVID-19
Interventions
Clazakizumab
Drug
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 8, 2024 · Synced Oct 24, 2026, 8:33 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of the Safety and Immunogenicity of a Novel H5N1 Influenza Vaccine in Healthy Adults Age 18-49

NCT01658800
View directory record Official record
Conditions
Influenza
Interventions
VAX161C vaccine
Biological
Lead sponsor
VaxInnate Corporation
Industry
Eligibility
18 Years to 49 Years
Enrollment
275 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
2
States / cities
South Miami, Florida • Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Mar 6, 2015 · Synced Oct 24, 2026, 8:33 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

REDucing Influenza Among University Students, University of California at Berkeley

NCT00448773
View directory record Official record
Conditions
Influenza-like Illness, Influenza
Interventions
Online education
Behavioral
Lead sponsor
Centers for Disease Control and Prevention
Federal
Eligibility
17 Years and older
Enrollment
3,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated Jan 7, 2010 · Synced Oct 24, 2026, 8:33 AM EDT
Withdrawn No phase listed Observational

Oral Steroid Treatment for Chronic Rhinosinusitis

NCT01255683
View directory record Official record
Conditions
Chronic Rhinosinusitis
Interventions
oral corticosteroid taper
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 22, 2015 · Synced Oct 24, 2026, 8:33 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Effect of Exercise and Education After Pneumonia

NCT01744145
View directory record Official record
Conditions
Pneumonia
Interventions
Interventional 40-60, Interventional 60 and above
Other
Lead sponsor
Winthrop University Hospital
Other
Eligibility
40 Years and older
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
Mineola, New York
Source: ClinicalTrials.gov public record
Updated Apr 18, 2023 · Synced Oct 24, 2026, 8:33 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

A Phase 2b, Randomized, Double-blind, Active-controlled Study of Single Dose CVXGA Intranasal COVID-19 Vaccine in Adults

NCT06742281
View directory record Official record
Conditions
COVID-19
Interventions
CVXGA (CVXGA50), COMIRNATY®
Biological
Lead sponsor
CyanVac LLC
Industry
Eligibility
18 Years to 100 Years
Enrollment
432 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
55
States / cities
Anniston, Alabama • Phoenix, Arizona • Chula Vista, California + 44 more
Source: ClinicalTrials.gov public record
Updated Oct 13, 2026 · Synced Oct 24, 2026, 8:33 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Improving Antimicrobial-Prescribing in Emergency Departments

NCT03349567
View directory record Official record
Conditions
Anti-Bacterial Agents, Respiratory Tract Infections
Interventions
Audit-and-feedback
Behavioral
Lead sponsor
Iowa City Veterans Affairs Medical Center
Federal
Eligibility
Not listed
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
2
States / cities
Indianapolis, Indiana • Sioux Falls, South Dakota
Source: ClinicalTrials.gov public record
Updated Apr 28, 2021 · Synced Oct 24, 2026, 8:33 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Genomics and Epigenomics of the Elderly Response to Pneumococcal Vaccines

NCT03104075
View directory record Official record
Conditions
Pneumonia, Aging
Interventions
Pneumococcal 13valent Conj Vaccine Diphtheria CRM197 Protein, Pneumococcal Vaccine Polyvalent
Biological
Lead sponsor
The Jackson Laboratory
Other
Eligibility
60 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 22, 2025 · Synced Oct 24, 2026, 8:33 AM EDT