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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Viral Upper Respiratory Infection Clear all
Completed No phase listed Observational Accepts healthy volunteers

COVID-19 Pandemic Response Network

NCT04320862
View directory record Official record
Conditions
COVID-19, SARS-CoV-2, Coronavirus, Influenza -Like Illness, Lower Resp Tract Infection, Upper Resp Tract Infection
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
Not listed
Enrollment
9,207 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 16, 2021 · Synced Jul 23, 2026, 4:14 PM EDT
Completed Phase 3 Interventional Results available

Famciclovir Pediatric Formulation in Children 1 to 12 Years of Age With Herpes Simplex Infection

NCT00098059
View directory record Official record
Conditions
Herpes Simplex
Interventions
Famciclovir
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
1 Year to 12 Years
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
11
States / cities
Birmingham, Alabama • Denver, Colorado • Chicago, Illinois + 8 more
Source: ClinicalTrials.gov public record
Updated Apr 24, 2013 · Synced Jul 23, 2026, 4:14 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Safety, Pharmacokinetics, and Efficacy Study of NB-001 to Treat Recurrent Herpes Labialis

NCT00453401
View directory record Official record
Conditions
Herpes Labialis
Interventions
NB-001
Drug
Lead sponsor
NanoBio Corporation
Industry
Eligibility
18 Years to 80 Years
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
28
States / cities
Huntsville, Alabama • Anaheim, California • Westlake Village, California + 23 more
Source: ClinicalTrials.gov public record
Updated May 29, 2008 · Synced Jul 23, 2026, 4:14 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Commercially Available Cannabis Products for Immune Support

NCT05944705
View directory record Official record
Conditions
Influenza, COVID-19, Common Cold
Interventions
Immune Support Supplement
Dietary Supplement
Lead sponsor
Center For Interventional Pain and Spine
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Bryn Mawr, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 28, 2024 · Synced Jul 23, 2026, 4:14 PM EDT
Completed Phase 2 Interventional

Evaluation of Echinacea for the Common Cold

NCT00032500
View directory record Official record
Conditions
Common Cold
Interventions
Echinacea
Drug
Lead sponsor
National Center for Complementary and Integrative Health (NCCIH)
NIH
Eligibility
Not listed
Timeline
2001 – 2004
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 17, 2006 · Synced Jul 23, 2026, 4:14 PM EDT
Terminated Phase 1 Interventional

Paclitaxel and Carboplatin in Treating Patients With Metastatic or Recurrent Solid Tumors and HIV Infection

NCT01249443
View directory record Official record
Conditions
HIV Infection, Recurrent Anal Cancer, Recurrent Breast Cancer, Recurrent Esophageal Cancer, Recurrent Gastric Cancer, Recurrent Metastatic Squamous Neck Cancer With Occult Primary, Recurrent Non-small Cell Lung Cancer, Recurrent Ovarian Epithelial Cancer, Recurrent Salivary Gland Cancer, Recurrent Squamous Cell Carcinoma of the Hypopharynx, Recurrent Squamous Cell Carcinoma of the Larynx, Recurrent Squamous Cell Carcinoma of the Lip and Oral Cavity, Recurrent Squamous Cell Carcinoma of the Nasopharynx, Recurrent Squamous Cell Carcinoma of the Oropharynx, Recurrent Squamous Cell Carcinoma of the Paranasal Sinus and Nasal Cavity, Recurrent Verrucous Carcinoma of the Larynx, Recurrent Verrucous Carcinoma of the Oral Cavity, Salivary Gland Squamous Cell Carcinoma, Stage IV Anal Cancer, Stage IV Breast Cancer, Stage IV Esophageal Cancer, Stage IV Gastric Cancer, Stage IV Non-small Cell Lung Cancer, Stage IV Ovarian Epithelial Cancer, Stage IV Salivary Gland Cancer, Stage IV Squamous Cell Carcinoma of the Hypopharynx, Stage IV Squamous Cell Carcinoma of the Larynx, Stage IV Squamous Cell Carcinoma of the Lip and Oral Cavity, Stage IV Squamous Cell Carcinoma of the Nasopharynx, Stage IV Squamous Cell Carcinoma of the Oropharynx, Stage IV Squamous Cell Carcinoma of the Paranasal Sinus and Nasal Cavity, Stage IV Verrucous Carcinoma of the Larynx, Stage IV Verrucous Carcinoma of the Oral Cavity, Unspecified Adult Solid Tumor, Protocol Specific
Interventions
vorinostat, diagnostic laboratory biomarker analysis, pharmacological study, carboplatin, paclitaxel
Drug · Other
Lead sponsor
AIDS Malignancy Consortium
Network
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
10
States / cities
La Jolla, California • Los Angeles, California • Washington D.C., District of Columbia + 7 more
Source: ClinicalTrials.gov public record
Updated Jul 28, 2020 · Synced Jul 23, 2026, 4:14 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Echinacea, Propolis and Vitamin C for URI Prevention in Preschoolers

NCT00231218
View directory record Official record
Conditions
Common Cold, Gastroenteritis
Interventions
dietary supplement--echinacea, propolis, and vitamin c
Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
3 Years to 6 Years
Enrollment
104 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 13, 2006 · Synced Jul 23, 2026, 4:14 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

University of Wisconsin Meditation & Exercise Cold Study

NCT01654289
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Nov 6, 2018 · Synced Jul 23, 2026, 4:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

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

NCT00448981
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Jul 23, 2026, 4:14 PM EDT
Completed Phase 2 Interventional Results available

Safety and Efficacy of Merlin (Ethanol and Glycolic Acid Mixture) for Episodic Treatment of Cold Sores

NCT03192306
View directory record Official record
Conditions
Recurrent Herpes Labialis
Interventions
Merlin, Ethanol
Drug
Lead sponsor
Topical Remedy
Industry
Eligibility
18 Years to 75 Years
Enrollment
451 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
6
States / cities
Huntsville, Alabama • San Diego, California • Melbourne, Florida + 3 more
Source: ClinicalTrials.gov public record
Updated Sep 11, 2018 · Synced Jul 23, 2026, 4:14 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Immune Defense Protein Impact On Respiratory Immune Outcomes

NCT07431840
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Mar 11, 2026 · Synced Jul 23, 2026, 4:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Echinacea and Acute Respiratory Illness

NCT02003651
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Dec 12, 2016 · Synced Jul 23, 2026, 4:14 PM EDT
Completed Phase 2 Interventional Results available

Effect of Simethicone on Eustachian Tube Dysfunction

NCT01312038
View directory record Official record
Conditions
Otitis Media
Interventions
Simethicone, Placebo
Drug
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 50 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 26, 2016 · Synced Jul 23, 2026, 4:14 PM EDT
Completed Phase 4 Interventional Results available

Safety and Efficacy of Olopatadine 0.6% and Azelastine 137 Mcg in Vasomotor Rhinitis

NCT00979615
View directory record Official record
Conditions
Vasomotor Rhinitis
Interventions
Olopatadine HCL (Patanase) Nasal Spray, 0.6%, Azelastine HCl (Astelin) Nasal Spray, 137 mcg
Drug
Lead sponsor
Alcon Research
Industry
Eligibility
12 Years and older
Enrollment
129 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2009
U.S. locations
1
States / cities
Fort Worth, Texas
Source: ClinicalTrials.gov public record
Updated May 9, 2011 · Synced Jul 23, 2026, 4:14 PM EDT
Completed Phase 3 Interventional Results available

Zinc for the Treatment of Herpes Simplex Labialis (HSL)

NCT00809809
View directory record Official record
Conditions
Herpes Simplex Labialis
Interventions
Zicam (Ionic zinc), placebo
Drug
Lead sponsor
Integrative Medicine Institute
Other
Eligibility
18 Years to 65 Years
Enrollment
157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
3
States / cities
Tempe, Arizona • Santa Fe, New Mexico • New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 7, 2014 · Synced Jul 23, 2026, 4:14 PM EDT
Completed Phase 4 Interventional Results available

A Clinical Evidence Study Evaluating Quality of Life Parameters Following Treatment With Robitussin

NCT06716645
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Feb 19, 2026 · Synced Jul 23, 2026, 4:14 PM EDT
Withdrawn Phase 2 Interventional Accepts healthy volunteers

ARMS-I (a Formulation of Cetylpyridinium Chloride -CPC)

NCT03026205
View directory record Official record
Conditions
Viral Upper Respiratory Tract Infection
Interventions
ARMS-I
Drug
Lead sponsor
University of Toledo Health Science Campus
Other
Eligibility
18 Years to 45 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Toledo, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 16, 2019 · Synced Jul 23, 2026, 4:14 PM EDT
Completed Not applicable Interventional Results available

Rapid Diagnostics for Upper Respiratory Infections in the Emergency Department

NCT02957136
View directory record Official record
Conditions
Respiratory Tract Infections, Influenza, Human, Common Cold
Interventions
Rapid respiratory pathogen nucleic acid amplification test
Device
Lead sponsor
University of California, Davis
Other
Eligibility
1 Year to 101 Years
Enrollment
194 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated May 18, 2021 · Synced Jul 23, 2026, 4:14 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Audio Data Collection for Identification and Classification of Coughing

NCT04326309
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Apr 28, 2022 · Synced Jul 23, 2026, 4:14 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 23, 2026, 4:14 PM EDT
Completed Phase 2 Interventional Results available

Mucinex Exploratory Cold Study

NCT01046136
View directory record Official record
Conditions
Common Cold
Interventions
guaifenesin (Mucinex), placebo
Drug
Lead sponsor
Reckitt Benckiser Inc.
Industry
Eligibility
12 Years and older
Enrollment
378 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2009
U.S. locations
1
States / cities
Bellevue, Nebraska
Source: ClinicalTrials.gov public record
Updated Dec 29, 2020 · Synced Jul 23, 2026, 4:14 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

A Randomized, Triple-blind, Placebo-controlled Study to Evaluate the Effects of a Throat Spray on the Incidence and Duration of Sickness

NCT07246850
View directory record Official record
Conditions
Sore-throat, Common Cold
Interventions
Beekeeper's Propolis Throat Spray, Placebo Throat Spray
Dietary Supplement
Lead sponsor
Beekeeper's Naturals Inc
Industry
Eligibility
18 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Nov 23, 2025 · Synced Jul 23, 2026, 4:14 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 23, 2026, 4:14 PM EDT
Active, not recruiting Not applicable Interventional

A Study of RhinAer Stylus for Treating Chronic Rhinitis

NCT06599736
View directory record Official record
Conditions
Chronic Rhinitis
Interventions
RhinAer Stylus
Device
Lead sponsor
Aerin Medical
Industry
Eligibility
22 Years to 85 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
2
States / cities
Colorado Springs, Colorado • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 11, 2026 · Synced Jul 23, 2026, 4:14 PM EDT