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ClinicalTrials.gov public records Last synced Oct 18, 2026, 1:21 PM EDT

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Showing 1201–1224 of 3,928 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Respiratory Tract Infections (RTI) Clear all
Terminated Not applicable Interventional Results available

Trial of Verapamil in Chronic Rhinosinusitis

NCT02454608
View directory record Official record
Conditions
Sinusitis, Nasal Polyps
Interventions
Verapamil HCl, Placebo
Drug · Other
Lead sponsor
Benjamin Bleier
Other
Eligibility
18 Years to 80 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 14, 2018 · Synced Oct 18, 2026, 1:21 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Reactogenicity, Safety and Immunogenicity of GlaxoSmithKline (GSK) Biologicals' Investigational Supra-seasonal Universal Influenza Vaccines - Inactivated (SUIVs) (GSK3816302A) in Healthy Adults Aged 18 to 39 Years

NCT03275389
View directory record Official record
Conditions
Influenza, Human
Interventions
D-SUIV cH8/1N1+AS03, D-SUIV cH5/1N1+AS03, D-SUIV cH11/1N1+AS03, D-SUIV cH8/1N1+AS01, D-SUIV cH5/1N1+AS01, D-SUIV cH11/1N1+AS01, D-SUIV cH8/1N1, D-SUIV cH5/1N1, D-SUIV cH11/1N1, Placebo, Fluarix Quadrivalent
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 39 Years
Enrollment
470 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
5
States / cities
South Miami, Florida • Wichita, Kansas • Rochester, New York + 2 more
Source: ClinicalTrials.gov public record
Updated May 7, 2021 · Synced Oct 18, 2026, 1:21 PM EDT
Completed Not applicable Interventional

Viral Testing and Biomarkers to Reduce Antibiotic Use for Respiratory Infections

NCT01907659
View directory record Official record
Conditions
Respiratory Infections
Interventions
Release of test results
Other
Lead sponsor
University of Rochester
Other
Eligibility
21 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jul 2, 2014 · Synced Oct 18, 2026, 1:21 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Study of S-892216 Long-acting Injectable (LAI) in Healthy Adult Participants

NCT07093580
View directory record Official record
Conditions
Healthy Participants
Interventions
S-892216-LAI, Placebo
Drug
Lead sponsor
Shionogi
Industry
Eligibility
18 Years to 55 Years
Enrollment
128 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
3
States / cities
Cypress, California • Lenexa, Kansas • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Oct 16, 2026 · Synced Oct 18, 2026, 1:21 PM EDT
Completed Phase 2 Interventional Results available

Safety, Tolerability and Pharmacokinetics of Second Generation VIR-7831 Material in Non-hospitalized Participants With Mild to Moderate COVID-19

NCT04779879
View directory record Official record
Conditions
Covid19
Interventions
Sotrovimab (Gen1), Sotrovimab (Gen2)
Biological
Lead sponsor
Vir Biotechnology, Inc.
Industry
Eligibility
18 Years to 69 Years
Enrollment
354 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
18
States / cities
Anniston, Alabama • Bakersfield, California • Northridge, California + 12 more
Source: ClinicalTrials.gov public record
Updated May 3, 2023 · Synced Oct 18, 2026, 1:21 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Face Masks During Exercise

NCT04833010
View directory record Official record
Conditions
Cardiopulmonary, Exercise, Cognitive Performance, Covid19
Interventions
Cardiopulmonary Exercise Test, Cognitive Performance Test
Other
Lead sponsor
Baylor Research Institute
Other
Eligibility
18 Years to 39 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Frisco, Texas
Source: ClinicalTrials.gov public record
Updated Jan 22, 2025 · Synced Oct 18, 2026, 1:21 PM EDT
Completed No phase listed Observational

Registry of CytoSorb Therapy in COVID-19 ICU Patients

NCT04391920
View directory record Official record
Conditions
COVID-19
Interventions
CytoSorb 300 mL device
Device
Lead sponsor
CytoSorbents, Inc
Industry
Eligibility
18 Years and older
Enrollment
138 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
7
States / cities
Aurora, Colorado • Chicago, Illinois • Indianapolis, Indiana + 4 more
Source: ClinicalTrials.gov public record
Updated Feb 9, 2024 · Synced Oct 18, 2026, 1:21 PM EDT
Completed Phase 2 Interventional

Study of Xiflam™ Treatment in Patients Post COVID-19 Infection Suffering From What is Known as Long COVID (LC)

NCT06437223
View directory record Official record
Conditions
Long COVID
Interventions
Tonabersat, Placebo
Drug
Lead sponsor
Inflammx Therapeutics Inc
Industry
Eligibility
21 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Waltham, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 6, 2026 · Synced Oct 18, 2026, 1:21 PM EDT
Completed Early Phase 1 Interventional Results available

COVID-19 Convalescent Plasma

NCT04340050
View directory record Official record
Conditions
Coronavirus
Interventions
anti-SARS-CoV-2 convalescent plasma
Biological
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 28, 2024 · Synced Oct 18, 2026, 1:21 PM EDT
Completed Phase 2 Interventional Results available

The Use PUL-042 to Reduce the Infection Rate and Progression to COVID-19 in Adults Exposed to SARS-CoV-2

NCT04313023
View directory record Official record
Conditions
COVID-19
Interventions
PUL-042 Inhalation Solution, Placebo
Drug
Lead sponsor
Pulmotect, Inc.
Industry
Eligibility
18 Years and older
Enrollment
217 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
15
States / cities
Orange, California • San Bernardino, California • Coral Gables, Florida + 10 more
Source: ClinicalTrials.gov public record
Updated May 17, 2023 · Synced Oct 18, 2026, 1:21 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Dose-Escalating Trial Using Vero Cell-culture Derived H5N1 +/- Aluminum in Adults

NCT00382980
View directory record Official record
Conditions
Influenza
Interventions
Aluminum hydroxide, Inactivated Vero cell based whole virus influenza A/H5N1, Placebo
Biological · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 40 Years
Enrollment
308 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
5
States / cities
Stanford, California • Torrance, California • Baltimore, Maryland + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 27, 2010 · Synced Oct 18, 2026, 1:21 PM EDT
Completed No phase listed Observational

Vancomycin De-escalation Therapy in Patients With Pneumonia

NCT03586362
View directory record Official record
Conditions
Pneumonia
Interventions
Not listed
Lead sponsor
CAMC Health System
Other
Eligibility
18 Years and older
Enrollment
278 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
Charleston, West Virginia
Source: ClinicalTrials.gov public record
Updated Aug 19, 2026 · Synced Oct 18, 2026, 1:21 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity Among Healthy Children Receiving Fluzone® Quadrivalent Influenza Virus Vaccine

NCT01946425
View directory record Official record
Conditions
Influenza
Interventions
Fluzone® Quadrivalent 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
2013 – 2014
U.S. locations
2
States / cities
Bardstown, Kentucky • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Sep 25, 2014 · Synced Oct 18, 2026, 1:21 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety Study of Anti-Influenza Virus Monoclonal Antibody to Treat Influenza

NCT01390025
View directory record Official record
Conditions
Influenza, Human
Interventions
TCN-032, Placebo
Biological
Lead sponsor
Theraclone Sciences, Inc.
Industry
Eligibility
18 Years to 45 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 2, 2012 · Synced Oct 18, 2026, 1:21 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

No Post Intubation Laryngeal Symptoms

NCT05383417
View directory record Official record
Conditions
Sore-throat, Dysphonia, Dysphagia, Intubation Complication, Anesthesia Intubation Complication, Anesthesia Morbidity, Anesthesia Complication, Anesthesia; Adverse Effect, Anesthesia; Reaction, Throat Disorder, Throat; Wound, Throat Injury
Interventions
EndoClip
Device
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Sep 10, 2025 · Synced Oct 18, 2026, 1:21 PM EDT
Completed Phase 1 Interventional Results available

Study of Open Label Losartan in COVID-19

NCT04335123
View directory record Official record
Conditions
COVID-19
Interventions
Losartan
Drug
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Aug 2, 2024 · Synced Oct 18, 2026, 1:21 PM EDT
Completed Phase 4 Interventional

Humoral Determinants of Immunity to Pneumococcal Infection

NCT00304382
View directory record Official record
Conditions
Pneumonia, Pneumococcal Infections, Infections, Streptococcus Pneumoniae
Interventions
Prevnar, Pneumovax
Biological
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
Not listed
Enrollment
114 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2012
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 5, 2017 · Synced Oct 18, 2026, 1:21 PM EDT
Completed No phase listed Observational

Monitoring Serologic Response to Severe Acute Respiratory Syndrome-2 (SARS-COV-2)/COVID-19 in Children

NCT04838834
View directory record Official record
Conditions
COVID-19, SARS-CoV-2, Inflammatory Bowel Diseases
Interventions
Not listed
Lead sponsor
Connecticut Children's Medical Center
Other
Eligibility
2 Years to 27 Years
Enrollment
472 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 1, 2025 · Synced Oct 18, 2026, 1:21 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Study of the Safety and Immunogenicity of NasoVAX Extension

NCT03760549
View directory record Official record
Conditions
Influenza
Interventions
Subjects were administered NasoVAX high dose
Drug
Lead sponsor
Altimmune, Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Rockville, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 19, 2025 · Synced Oct 18, 2026, 1:21 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Sinonasal Gas Exchange Dynamics

NCT01671098
View directory record Official record
Conditions
Sinusitis
Interventions
Not listed
Lead sponsor
Louisiana State University Health Sciences Center Shreveport
Other
Eligibility
18 Years to 65 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Shreveport, Louisiana
Source: ClinicalTrials.gov public record
Updated Aug 20, 2015 · Synced Oct 18, 2026, 1:21 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Characterizing SARS-CoV-2-specific Immunity in Individuals Who Have Recovered From COVID-19

NCT04403880
View directory record Official record
Conditions
SARS-CoV-2, COVID-19
Interventions
Sample collection
Other
Lead sponsor
HIV Vaccine Trials Network
Network
Eligibility
18 Years and older
Enrollment
760 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
21
States / cities
Birmingham, Alabama • Los Angeles, California • San Francisco, California + 15 more
Source: ClinicalTrials.gov public record
Updated Jan 12, 2026 · Synced Oct 18, 2026, 1:21 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Influenza Vaccination in the Emergency Department

NCT00822627
View directory record Official record
Conditions
Influenza
Interventions
Influenza Vaccination, Education and referral
Drug · Behavioral
Lead sponsor
University of Arizona
Other
Eligibility
6 Months and older
Enrollment
140 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Jan 14, 2009 · Synced Oct 18, 2026, 1:21 PM EDT
Completed No phase listed Observational

Clinical Evaluation of QFlu Combo Test

NCT01506583
View directory record Official record
Conditions
Cough, Myalgia, Nasal Obstruction, Sore Throat, Headache, Fatigue, Fever
Interventions
Not listed
Lead sponsor
Cellex, Inc.
Industry
Eligibility
Not listed
Enrollment
506 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
3
States / cities
Birmingham, Alabama • Chicago, Illinois • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 6, 2021 · Synced Oct 18, 2026, 1:21 PM EDT
Completed Phase 2 Interventional Results available

A Study of Auxora in Patients With Severe COVID-19 Pneumonia

NCT04345614
View directory record Official record
Conditions
Pneumonia
Interventions
Auxora (Part 1), Standard of Care (Part 1), Auxora (Part 2), Placebo (Part 2)
Drug
Lead sponsor
CalciMedica, Inc.
Industry
Eligibility
18 Years and older
Enrollment
314 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
17
States / cities
Long Beach, California • Los Angeles, California • San Diego, California + 13 more
Source: ClinicalTrials.gov public record
Updated Mar 30, 2026 · Synced Oct 18, 2026, 1:21 PM EDT