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ClinicalTrials.gov public records Last synced Oct 15, 2026, 3:01 AM EDT

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Showing 553–576 of 3,925 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Respiratory Tract Infections (RTI) Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Safety and Efficacy Study of Oral XIGO Tablets to Treat The Common Cold

NCT01092039
View directory record Official record
Conditions
Common Cold
Interventions
lactoferrin, L-Glutamine and beta-glucans, Placebo Comparator
Dietary Supplement
Lead sponsor
Xigo Health LLC
Industry
Eligibility
18 Years to 50 Years
Enrollment
140 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Fall River, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 24, 2012 · Synced Oct 15, 2026, 3:01 AM EDT
Terminated Phase 1 Interventional Results available

Camostat With Bicalutamide for COVID-19

NCT04652765
View directory record Official record
Conditions
Covid19, SARS-CoV Infection, Coronavirus Infection
Interventions
Camostat Mesilate, Bicalutamide 150 mg
Drug
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
60 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 6, 2023 · Synced Oct 15, 2026, 3:01 AM EDT
Completed Phase 2 Interventional

Oral Triple Combination Antiviral Drug Therapy for Treatment of Influenza A in Immunocompromised Subjects

NCT00979251
View directory record Official record
Conditions
Influenza
Interventions
Oseltamivir Phosphate, ADS-8902
Drug
Lead sponsor
Adamas Pharmaceuticals, Inc.
Industry
Eligibility
1 Year to 65 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
16
States / cities
San Francisco, California • Hollywood, Florida • Miramar, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Apr 14, 2014 · Synced Oct 15, 2026, 3:01 AM EDT
Withdrawn Phase 1 Interventional

Study to Evaluate Safety, Tolerability, Efficacy and Pharmacokinetics of ASC10 in Mild to Moderate COVID-19 Patients

NCT05596045
View directory record Official record
Conditions
SARS CoV 2 Infection
Interventions
ASC10, Placebo
Drug
Lead sponsor
Ascletis Pharmaceuticals Co., Ltd.
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
2
States / cities
Anniston, Alabama • Hialeah, Florida
Source: ClinicalTrials.gov public record
Updated Nov 1, 2024 · Synced Oct 15, 2026, 3:01 AM EDT
Completed Phase 2 Interventional Results available

Sirolimus Treatment in Hospitalized Patients With COVID-19 Pneumonia

NCT04341675
View directory record Official record
Conditions
COVID-19
Interventions
Sirolimus, Placebo
Drug
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
2
States / cities
Chicago, Illinois • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 5, 2024 · Synced Oct 15, 2026, 3:01 AM 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 15, 2026, 3:01 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Food Environment, Food Insecurity, and Health Behaviors in NH Hispanics

NCT05424367
View directory record Official record
Conditions
Obesity, Food Insecurity
Interventions
Not listed
Lead sponsor
University of New Hampshire
Other
Eligibility
18 Years and older
Enrollment
139 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Durham, New Hampshire
Source: ClinicalTrials.gov public record
Updated Apr 2, 2025 · Synced Oct 15, 2026, 3:01 AM EDT
Terminated Phase 2 Interventional Results available

Peginterferon Lambda-1a for the Prevention and Treatment of SARS-CoV-2 (COVID-19) Infection

NCT04344600
View directory record Official record
Conditions
Sars-CoV-2 Infection
Interventions
Peginterferon lambda alfa-1a subcutaneous injection, Saline
Drug · Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 80 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 14, 2022 · Synced Oct 15, 2026, 3:01 AM EDT
Completed Not applicable Interventional Results available

Phase I/II Safety, Dose Finding & Antiviral Activity of RD-X19 in Mild/Moderate Outpatient COVID-19

NCT04662671
View directory record Official record
Conditions
COVID19
Interventions
RD-X19
Device
Lead sponsor
EmitBio Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
2
States / cities
Miami, Florida • College Station, Texas
Source: ClinicalTrials.gov public record
Updated Sep 8, 2022 · Synced Oct 15, 2026, 3:01 AM EDT
Active, not recruiting Phase 4 Interventional Accepts healthy volunteers

B Cell and Antibody Response to Seasonal Influenza Vaccines in Younger and Older Adults

NCT04101838
View directory record Official record
Conditions
Influenza
Interventions
Fluzone, Flucelvax, Fluzone High-Dose, Fluad
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Oct 15, 2026, 3:01 AM EDT
Completed No phase listed Observational

A Pilot Study of Influenza Viruses Isolated From Immunocompromised Children and Adolescents

NCT02352389
View directory record Official record
Conditions
Influenza, Human
Interventions
Blood sample, Nasal swab, Oropharyngeal swab, Stool sample, Symptom checklist
Other
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
Up to 21 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2022
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 12, 2023 · Synced Oct 15, 2026, 3:01 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Screening for LID Clinical Studies Unit Healthy Volunteer Protocols

NCT01386424
View directory record Official record
Conditions
Zika, Influenza
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 65 Years
Enrollment
5,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2011
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 22, 2026 · Synced Oct 15, 2026, 3:01 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of Probiotic on the Innate and Adaptive Host Response to Rhinovirus (EPIARR)

NCT01669603
View directory record Official record
Conditions
Common Cold
Interventions
Bifidobacterium lactis Bl-04, Placebo, Rhinovirus
Dietary Supplement · Biological
Lead sponsor
University of Virginia
Other
Eligibility
18 Years to 60 Years
Enrollment
789 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 25, 2017 · Synced Oct 15, 2026, 3:01 AM EDT
Completed Not applicable Interventional Results available

Using MOST to Optimize an Intervention to Increase COVID-19 Testing for Frontline Essential Workers

NCT05139927
View directory record Official record
Conditions
COVID-19, COVID-19 Testing
Interventions
Motivational interviewing (MI) counseling, Text messages (TMs) and quiz questions (QQs), Peer education, Access to COVID testing
Behavioral
Lead sponsor
New York University
Other
Eligibility
18 Years to 70 Years
Enrollment
438 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 16, 2025 · Synced Oct 15, 2026, 3:01 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 5, 2026 · Synced Oct 15, 2026, 3:01 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Immunogenicity Trial of Egg- Versus Non-Egg-Based Influenza Vaccines Among HCP

NCT03722589
View directory record Official record
Conditions
Influenza
Interventions
Flublok, Flucelvax, Fluarix, Fluzone, Fluzone High-Dose
Biological
Lead sponsor
Centers for Disease Control and Prevention
Federal
Eligibility
18 Years to 65 Years
Enrollment
944 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
2
States / cities
Portland, Oregon • Temple, Texas
Source: ClinicalTrials.gov public record
Updated Jul 22, 2024 · Synced Oct 15, 2026, 3:01 AM EDT
Completed Not applicable Interventional

PECO Air Purification in Hospital Rooms to Improve Health Outcomes for Pediatric Respiratory Distress

NCT03647397
View directory record Official record
Conditions
Asthma, Pneumonia, Respiratory Distress Syndrome
Interventions
Photo Electrochemical Oxidation (PECO) for Air Purification
Device
Lead sponsor
Molekule
Industry
Eligibility
1 Year to 17 Years
Enrollment
274 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
Rockford, Illinois
Source: ClinicalTrials.gov public record
Updated May 17, 2019 · Synced Oct 15, 2026, 3:01 AM EDT
Withdrawn Phase 3 Interventional Accepts healthy volunteers

A Study to Evaluate the Efficacy of Xlear vs. Placebo for Acute COVID-19 Infection

NCT04858620
View directory record Official record
Conditions
Covid19
Interventions
Xlear Nasal Spray, Placebo
Drug
Lead sponsor
Larkin Community Hospital
Other
Eligibility
18 Years to 90 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Oct 16, 2023 · Synced Oct 15, 2026, 3:01 AM EDT
Not listed Phase 2 Interventional

Study to Reinforce Immunity (STRI) Phase 2 Clinical Trial

NCT05046561
View directory record Official record
Conditions
Covid19
Interventions
STRI Formula, Placebo
Drug
Lead sponsor
Eyecheck, Inc.
Industry
Eligibility
18 Years and older
Enrollment
598 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
13
States / cities
Coral Gables, Florida • Doral, Florida • Medley, Florida + 4 more
Source: ClinicalTrials.gov public record
Updated Sep 9, 2022 · Synced Oct 15, 2026, 3:01 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of Clinical Performance and Usability of iStatis COVID-19 Ag Rapid Test at POC

NCT05514691
View directory record Official record
Conditions
COVID-19 Virus Infection, COVID-19, Coronavirus Disease-19, COVID-19 Pandemic, SARS-CoV-2 Infection
Interventions
iStatis COVID-19 Ag Rapid Test, "COVID-19 RT-PCR Test EUA Number: EUA200011, Company: Laboratory Corporation of America ("Labcorp")
Diagnostic Test
Lead sponsor
bioLytical Laboratories
Industry
Eligibility
18 Years and older
Enrollment
129 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
2
States / cities
Fort Lauderdale, Florida • Elkridge, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 24, 2022 · Synced Oct 15, 2026, 3:01 AM EDT
Completed Phase 3 Interventional Results available

A Study of Exercise Endurance and Lung Hyperinflation in Patients With Moderate to Severe Chronic Obstructive Pulmonary Disease (COPD)

NCT00500318
View directory record Official record
Conditions
Pulmonary Disease, Chronic Obstructive
Interventions
Aclidinium Bromide, Placebo
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
40 Years and older
Enrollment
181 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
42
States / cities
Jasper, Alabama • Phoenix, Arizona • Long Beach, California + 33 more
Source: ClinicalTrials.gov public record
Updated Jan 6, 2017 · Synced Oct 15, 2026, 3:01 AM EDT
Enrolling by invitation Not applicable Interventional

Cognitive Rehabilitation Therapy for COVID-19

NCT06086379
View directory record Official record
Conditions
Post-Acute COVID-19 Syndrome
Interventions
Compensatory Cognitive Training for COVID-19, Holistic Cognitive Education
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Oct 15, 2026, 3:01 AM EDT
Terminated Phase 2 Interventional Results available

A Trial of GC4419 in Patients With Critical Illness Due to COVID-19

NCT04555096
View directory record Official record
Conditions
Covid19, SARS-CoV-2 Infection
Interventions
GC4419, Placebo
Drug
Lead sponsor
Galera Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
3
States / cities
Iowa City, Iowa • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 18, 2022 · Synced Oct 15, 2026, 3:01 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Dime La VerDAD: Verify, Debunk, and Disseminate

NCT06417762
View directory record Official record
Conditions
Influenza, COVID-19, Communication Research, Health Behavior, Respiratory Viral Infection
Interventions
Science Communication Curriculum Cohort 1, Science communication curriculum Cohort 2, Science communication curriculum Cohort 3, Science communication curriculum Cohort 4
Behavioral
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 99 Years
Enrollment
1,400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2029
U.S. locations
4
States / cities
Chicago, Illinois • Iowa City, Iowa • Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Oct 15, 2026, 3:01 AM EDT