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ClinicalTrials.gov public records Last synced Jun 11, 2026, 2:36 AM EDT

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Showing 1–24 of 48 matching trials from the live ClinicalTrials.gov search.
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Conditions
Healthy
Interventions
Probiotic- Bifidobacterium Bifidum, Sugar Pill, Probiotic- Lactobacillus helveticus, Probiotic- Bifidobacterium longum ss. Infantis R0033
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
583 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Gainesville, Florida
Conditions
Healthy
Interventions
Sucrose, Galactooligosaccharide
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
60 Years and older
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Gainesville, Florida
Completed Not applicable Interventional Accepts healthy volunteers

Echinacea and Acute Respiratory Illness

NCT02003651
Conditions
Acute Respiratory Infections
Interventions
Quick Defense, Placebo
Dietary Supplement
Lead sponsor
Appalachian State University
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Kannapolis, North Carolina
Conditions
Upper Respiratory Infection
Interventions
Montelukast, Placebo
Drug
Lead sponsor
Deborah Gentile
Other
Eligibility
18 Years to 50 Years
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2007
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Conditions
Common Cold
Interventions
EZC Pak, EZC Pak +D, Placebo
Dietary Supplement
Lead sponsor
PPC Pharmaceuticals
Industry
Eligibility
18 Years to 85 Years
Enrollment
360 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Santa Monica, California
Completed Phase 3 Interventional Accepts healthy volunteers

Pomegranate Products for Prevention of Common Cold

NCT00617318
Conditions
Influenza, Common Cold, Cough, Headache, Fever
Interventions
Pomegranate, Placebo
Dietary Supplement
Lead sponsor
Texas Heart Institute
Other
Eligibility
21 Years to 49 Years
Enrollment
461 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
San Diego, California
Conditions
Common Cold, Cough
Interventions
Robitussin Maximum Strength Cough and Chest Congestion DM, Robitussin Maximum Strength Nighttime Cough DM
Drug
Lead sponsor
HALEON
Industry
Eligibility
18 Years and older
Enrollment
244 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
New York, New York
Completed Phase 2 Interventional Accepts healthy volunteers Results available

University of Wisconsin Meditation & Exercise Cold Study

NCT01654289
Conditions
Acute Respiratory Infection
Interventions
Mindfulness Meditation, Exercise
Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
30 Years to 69 Years
Enrollment
413 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
Madison, Wisconsin
Recruiting Not applicable Interventional Accepts healthy volunteers

Immune Defense Protein Impact On Respiratory Immune Outcomes

NCT07431840
Conditions
Upper Respiratory Disease, Influenza, Viral Upper Respiratory Infection
Interventions
Immune Defense Protein 50mg Dose, IDP 200mg Dose, Matching Placebo
Dietary Supplement
Lead sponsor
Quantec Ltd
Industry
Eligibility
60 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Completed No phase listed Observational Accepts healthy volunteers

Audio Data Collection for Identification and Classification of Coughing

NCT04326309
Conditions
COVID-19, Coronavirus Infections, Hay Fever, Asthma, Chronic Obstructive Pulmonary Disease, Influenza, Common Cold, Respiratory Tract Infections, Healthy
Interventions
Not listed
Lead sponsor
HealthMode Inc.
Industry
Eligibility
18 Years and older
Enrollment
336 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
The Bronx, New York
Conditions
Respiratory Infections, Acute
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
65 Years and older
Enrollment
3,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
1
States / cities
Houston, Texas
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Efficacy Trial of 3804-250A in the Prevention of Cold Illnesses

NCT00762476
Conditions
Common Cold
Interventions
3804-250A, 3804-291
Drug
Lead sponsor
The Dial Corporation
Industry
Eligibility
18 Years and older
Enrollment
411 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
2
States / cities
Paramus, New Jersey • Charlottesville, Virginia
Conditions
Common Cold
Interventions
Pomegranate Concentrate (POMx), Placebo
Dietary Supplement
Lead sponsor
POM Wonderful LLC
Industry
Eligibility
18 Years to 45 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
3
States / cities
Huntsville, Alabama • Melbourne, Florida • Charlottesville, Virginia
Recruiting Not applicable Interventional Accepts healthy volunteers

Omega-3 Fatty Acids as Regulators of Brown Adipose Tissue During Cold Exposure

NCT05822141
Conditions
Cold Exposure
Interventions
Fish Oil, Placebo
Dietary Supplement
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 40 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Bloomington, Indiana
Conditions
Common Cold, Pharyngitis, Fever, Congestion, Rhinorrhea, Cough, Sore-throat, Sore Throats Viral, Malaise, Headache, Runny Nose, Sneezing
Interventions
Wintergreen Throat Spray and Aspirin Tablet, Aspirin Throat Spray and Placebo Tablet, Wintergreen Throat Spray and Placebo Tablet, Placebo Throat Spray and Placebo Tablet
Drug · Dietary Supplement · Other
Lead sponsor
Applied Biological Laboratories Inc
Other
Eligibility
18 Years to 65 Years
Enrollment
157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
6
States / cities
Irvine, California • Washington D.C., District of Columbia • Atlanta, Georgia + 3 more
Conditions
Dysphagia
Interventions
Cold Thin Liquid Barium
Other
Lead sponsor
NYU Langone Health
Other
Eligibility
Up to 43 Weeks
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Mineola, New York
Conditions
Asthma
Interventions
Vapendavir, Placebo
Drug
Lead sponsor
Biota Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
455 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
33
States / cities
Birmingham, Alabama • Flagstaff, Arizona • Bakersfield, California + 30 more
Conditions
Common Cold, Pharyngitis
Interventions
Acetylsalicylic Acid (Aspirin Complex, BAYE4465) + Pseudoephedrine, Acetylsalicylic Acid (Aspirin, BAYE4465), Pseudoephedrine, Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 65 Years
Enrollment
1,016 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
2
States / cities
New York, New York
Recruiting Not applicable Interventional Accepts healthy volunteers

Sex Differences in Cold-Induced Changes in Maximal Fat Oxidation

NCT07297823
Conditions
Exercise
Interventions
Cold temperature, Room Temperature
Other
Lead sponsor
Colorado State University
Other
Eligibility
18 Years to 40 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Fort Collins, Colorado
Not listed Phase 2 Interventional Accepts healthy volunteers

Efficacy Study of A Lotion to Prevent Common Colds

NCT00993759
Conditions
Common Cold, Healthy
Interventions
3804-250A
Drug
Lead sponsor
The Dial Corporation
Industry
Eligibility
18 Years to 40 Years
Enrollment
212 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Charlottesville, Virginia
Conditions
Common Cold
Interventions
Echinacea, Blinded placebo
Dietary Supplement · Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
12 Years and older
Enrollment
719 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2013
U.S. locations
1
States / cities
Madison, Wisconsin
Completed Not applicable Interventional Accepts healthy volunteers Results available

Nasal Physiologic Reactivity of Nonallergic Rhinitics to Cold Air Provocation

NCT00415493
Conditions
Vasomotor Rhinitis
Interventions
Cold-dry air provocation, Warm-moist air provocation
Other
Lead sponsor
Associated Scientists to Help Minimize Allergies
Other
Eligibility
18 Years to 60 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
Seattle, Washington
Completed Not applicable Interventional Accepts healthy volunteers

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

NCT01092039
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
Completed Not applicable Interventional Accepts healthy volunteers

Stopping Upper Respiratory Infections and Flu in the Family: The Stuffy Trial

NCT00448981
Conditions
Respiratory Tract Infections, Common Cold
Interventions
Education, Hand Sanitizer, Face Masks
Behavioral · Device
Lead sponsor
Centers for Disease Control and Prevention
Federal
Eligibility
Not listed
Enrollment
2,788 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
New York, New York