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Showing 1–24 of 402 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Upper Resp Tract Infection Clear all
Completed Phase 3 Interventional Accepts healthy volunteers

Spirulina Oral Supplement for Enhancing Host Resilience to Virus Infection

NCT05447078
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Immulina TM, Placebo
Drug · Dietary Supplement
Lead sponsor
University of Mississippi Medical Center
Other
Eligibility
18 Years and older
Enrollment
492 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Jackson, Mississippi
Source: ClinicalTrials.gov public record
Updated Dec 25, 2025 · Synced Jul 21, 2026, 4:41 PM EDT
Completed Phase 3 Interventional Results available

A Long-Term Safety Study Evaluating the Safety and Systemic Exposure of AR-15512

NCT05493111
View directory record Official record
Conditions
Dry Eye Disease
Interventions
0.003% AR-15512 ophthalmic solution, AR-15512 vehicle ophthalmic solution
Drug
Lead sponsor
Aerie Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
275 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
10
States / cities
Chandler, Arizona • Sun City, Arizona • Glendale, California + 7 more
Source: ClinicalTrials.gov public record
Updated Aug 12, 2025 · Synced Jul 21, 2026, 4:41 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Iontophoretic Application of Acyclovir Cream to Treat Recurrent Herpes Labialis

NCT00230867
View directory record Official record
Conditions
Herpes Labialis
Interventions
iontophoretic acyclovir
Device
Lead sponsor
Transport Pharmaceuticals
Industry
Eligibility
18 Years to 75 Years
Enrollment
1,800 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005
U.S. locations
26
States / cities
Birmingham, Alabama • Chandler, Arizona • Phoenix, Arizona + 22 more
Source: ClinicalTrials.gov public record
Updated Jul 3, 2006 · Synced Jul 21, 2026, 4:41 PM EDT
Completed Phase 1 Interventional

Respiratory Syncytial Virus Human Challenge in Healthy Adult Volunteers

NCT02484417
View directory record Official record
Conditions
Upper Respiratory Tract Infection
Interventions
RSV A2
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 9, 2026 · Synced Jul 21, 2026, 4:41 PM EDT
Terminated Phase 2 Interventional Results available

Effects of JNJ-53718678 in Adult and Adolescent Participants Who Had a Hematopoietic Stem Cell Transplantation and Who Are Infected With Respiratory Syncytial Virus (RSV)

NCT04056611
View directory record Official record
Conditions
Respiratory Syncytial Virus Infections
Interventions
JNJ-53718678 250 mg, Placebo, JNJ-53718678 125 mg
Drug
Lead sponsor
Janssen Sciences Ireland UC
Industry
Eligibility
13 Years to 75 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
9
States / cities
Los Angeles, California • Detroit, Michigan • Minneapolis, Minnesota + 6 more
Source: ClinicalTrials.gov public record
Updated Feb 3, 2025 · Synced Jul 21, 2026, 4:41 PM EDT
Completed Not applicable Interventional Results available

Urgent Care Management of Respiratory Illness Enabled With Novel Testing Pathway

NCT05467007
View directory record Official record
Conditions
Viral Infection, Acute Respiratory Infection, Upper Resp Tract Infection
Interventions
BioFire® Respiratory Panel 2.1-EZ
Diagnostic Test
Lead sponsor
Andrew Meltzer
Other
Eligibility
7 Years and older
Enrollment
360 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
2
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Jul 21, 2026, 4:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Three Arm Trial of Immune Effects of Echinacea

NCT01129128
View directory record Official record
Conditions
Upper Respiratory Tract Infections
Interventions
Echinacea purpurea product, Placebo
Biological
Lead sponsor
University of Washington
Other
Eligibility
21 Years to 65 Years
Enrollment
67 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Kenmore, Washington
Source: ClinicalTrials.gov public record
Updated Jun 20, 2012 · Synced Jul 21, 2026, 4:41 PM EDT
Completed Not applicable Interventional

Impact of Information Prescriptions on Medication Adherence in Emergency Department (ED) Patients

NCT01174706
View directory record Official record
Conditions
Patient Compliance, Medication Adherence, Medication Non-Adherence
Interventions
Information prescriptions
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
3,940 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
3
States / cities
Baltimore, Maryland • Columbia, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 20, 2018 · Synced Jul 21, 2026, 4:41 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Shifts in the Respiratory Microbiome and Clinical Outcomes of SARS-CoV-2

NCT04815018
View directory record Official record
Conditions
SARS-CoV-2 Infection, Bacterial Respiratory Tract Infection, Viral Respiratory Tract Infection
Interventions
Not listed
Lead sponsor
Pathnostics
Industry
Eligibility
60 Years and older
Enrollment
185 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
4
States / cities
Delaware, Ohio • Granville, Ohio • Westerville, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 29, 2021 · Synced Jul 21, 2026, 4:41 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Prevention and Treatment of Immersion Pulmonary Edema

NCT00815646
View directory record Official record
Conditions
Immersion Pulmonary Edema (IPE), Swimming Induced Pulmonary Edema (SIPE)
Interventions
Sildenafil
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years to 55 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2015
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 25, 2016 · Synced Jul 21, 2026, 4:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Randomized Controlled Trial of Social Network Targeting in Honduras

NCT02694679
View directory record Official record
Conditions
Preterm Delivery, Hypothermia, Diarrhea, Upper Respiratory Infection, Omphalitis
Interventions
CBNH
Behavioral
Lead sponsor
Yale University
Other
Eligibility
12 Years and older
Enrollment
31,195 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2020
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 7, 2023 · Synced Jul 21, 2026, 4:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Natural Modulators of Immune Function and Mood

NCT05508529
View directory record Official record
Conditions
Stress
Interventions
Chaga Mushroom, Algae Extract, Black Cumin Seed Oil, Black Cumin Seed Oil + Astaxanthin, Black Cumin Seed Oil + Omega 3, Placebo
Dietary Supplement
Lead sponsor
3 Waves Wellness
Industry
Eligibility
18 Years to 70 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Plymouth, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 18, 2022 · Synced Jul 21, 2026, 4:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of Cold Forcep and Cold Snare Polypectomy for Polyps Less Than or Equal to 3mm in Size During Colonoscopy

NCT04551001
View directory record Official record
Conditions
Colo-rectal Cancer, Polyp of Colon, Adenomatous Polyp of Colon
Interventions
Cold forcep polypectomy, Cold snare polypectomy
Procedure
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
181 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated May 16, 2022 · Synced Jul 21, 2026, 4:41 PM EDT
Enrolling by invitation Early Phase 1 Interventional

Evaluation of In-Vitro Cryo Therapeutic Protocols on Human Cell Samples (TWH-CRYO-001)

NCT07321028
View directory record Official record
Conditions
Cellular Injury and Post-Cryogenic Recovery, Cryogenic Cellular Stress, Cold-Induced Cellular Injury, Thermal Injury Response, Post-Thaw Viability Impairment, Osmotic Stress Injury, Biomechanical Injury Modeling (In-Vitro), Blunt Force Injuries to the Extremities (Cellular Injury Model), Tissue Damage and Recovery Pathways, Hypothermic Tissue Stress, Cellular Regeneration and Repair
Interventions
Standard Laboratory Cryopreservation Procedure, Enhanced Laboratory Cryopreservation Procedure, Normothermic Cell Culture Control
Other
Lead sponsor
Truway Health, Inc.
Industry
Eligibility
Not listed
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2066
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 5, 2026 · Synced Jul 21, 2026, 4:41 PM EDT
Active, not recruiting No phase listed Observational

Comparison of ICG Microangiography and Conventional Angiography in Severe Frostbite

NCT05777590
View directory record Official record
Conditions
Frostbite
Interventions
Indocyanine Green Angiogram
Drug
Lead sponsor
HealthPartners Institute
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 5, 2026 · Synced Jul 21, 2026, 4:41 PM EDT
Completed Not applicable Interventional

Clinical Research Study of the Benefits of BREG Polar Care Wave to Reduce Opioid Use by Patients Having Undergone Arthroscopic Rotator Cuff Repair Shoulder Surgery

NCT07455474
View directory record Official record
Conditions
Rotator Cuff Tear
Interventions
Breg Polar Care Wave Cold Compression Device
Device
Lead sponsor
University of Nevada, Reno
Other
Eligibility
18 Years to 70 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
2
States / cities
Mammoth Lakes, California • Taos, New Mexico
Source: ClinicalTrials.gov public record
Updated Mar 5, 2026 · Synced Jul 21, 2026, 4:41 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Energy Dense Fueling for Cold-Weather Operations

NCT07489690
View directory record Official record
Conditions
Cold Exposure
Interventions
High Fat, High Carbohydrate
Dietary Supplement
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
18 Years to 39 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Natick, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 23, 2026 · Synced Jul 21, 2026, 4:41 PM EDT
Completed Phase 3 Interventional Results available

A Study Evaluating the Efficacy and Safety of ABP 959 Compared With Eculizumab in Adult Participants With PNH

NCT03818607
View directory record Official record
Conditions
Paroxysmal Nocturnal Hemoglobinuria
Interventions
ABP 959, Eculizumab
Drug
Lead sponsor
Amgen
Industry
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated May 22, 2023 · Synced Jul 21, 2026, 4:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Prospective, Epidemiological Study to Assess the Disease Burden of Respiratory Syncytial Virus Associated, Suspected Lower Respiratory Tract Infections in Newborns, From 0 to 2 Years of Age and Risk of Development of Wheeze and Asthma From 0 to 6 Years of Age

NCT01995175
View directory record Official record
Conditions
Respiratory Syncytial Virus
Interventions
Nasal swab sampling, Blood sampling, Diary cards
Procedure · Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
Up to 6 Years
Enrollment
2,409 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2021
U.S. locations
9
States / cities
Oakland, California • Sacramento, California • Santa Clara, California + 5 more
Source: ClinicalTrials.gov public record
Updated Nov 28, 2022 · Synced Jul 21, 2026, 4:41 PM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

Botulinum Toxin Type A for Cold Intolerance Secondary to Digital Amputations and Replantations: A Pilot Study

NCT04917731
View directory record Official record
Conditions
Cold Intolerance
Interventions
Botulinum toxin type A
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 23, 2022 · Synced Jul 21, 2026, 4:41 PM EDT
Not listed Phase 1Phase 2 Interventional Accepts healthy volunteers

Reversal of Aspirin Antiplatelet Therapy With Cold Stored Platelets

NCT05111028
View directory record Official record
Conditions
Reversal of Platelet Aggregation Inhibitors
Interventions
Autologous Room Temperature stored Platelet transfusion, Autologous Cold Stored Platelet transfusion
Biological
Lead sponsor
Bloodworks
Other
Eligibility
18 Years to 59 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Nov 7, 2021 · Synced Jul 21, 2026, 4:41 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

A Clinical Study to Determine if Beta Glucan Reduces the Incidence, Duration or Severity of URTIs Among Skiers

NCT05917015
View directory record Official record
Conditions
Upper Respiratory Tract Infections, Mental Stress
Interventions
Treatment, Placebo
Dietary Supplement · Other
Lead sponsor
USANA Health Sciences
Industry
Eligibility
18 Years to 30 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Park City, Utah
Source: ClinicalTrials.gov public record
Updated Jun 22, 2023 · Synced Jul 21, 2026, 4:41 PM EDT
Completed Not applicable Interventional Results available

Trial to Compare the SherpaPak™ Device vs Cold Storage

NCT05194514
View directory record Official record
Conditions
Organ Transplant
Interventions
SherpaPak™ Device, Cold Storage
Device · Other
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 20, 2025 · Synced Jul 21, 2026, 4:41 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 Jul 21, 2026, 4:41 PM EDT