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Showing 25–34 of 10 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Congestion, Nasal Clear all
Completed Phase 4 Interventional

To Determine if Diphenhydramine Works for Nasal Congestion at Two Different Doses

NCT00648973
View directory record Official record
Conditions
Nasal Congestion
Interventions
Diphenhydramine 50 mg, Diphenhydramine 25 mg, Pseudoephedrine 120 mg
Drug
Lead sponsor
Johnson & Johnson Consumer and Personal Products Worldwide
Industry
Eligibility
12 Years to 65 Years
Enrollment
1,021 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
12
States / cities
Austin, Texas • Dallas, Texas • Kerrville, Texas + 4 more
Source: ClinicalTrials.gov public record
Updated Aug 21, 2011 · Synced Jul 22, 2026, 1:58 PM EDT
Completed Not applicable Interventional Results available

Sonu Nasal Congestion Relief Study in Patients Suffering From Moderate to Severe Nasal Congestion

NCT05821842
View directory record Official record
Conditions
Nasal Congestion and Inflammations
Interventions
Sonu
Device
Lead sponsor
Third Wave Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Apr 25, 2024 · Synced Jul 22, 2026, 1:58 PM EDT
Completed Phase 2 Interventional Results available

A Pivotal Subjective Sleep Study of a Nasal Dilator (Breathe Right Tan)

NCT03549117
View directory record Official record
Conditions
Congestion, Nasal
Interventions
Breathe Right Tan (small/medium) nasal strips, Placebo nasal strip
Device · Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
2
States / cities
Verona, New Jersey • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 24, 2018 · Synced Jul 22, 2026, 1:58 PM EDT
Completed Phase 3 Interventional

Effect of Heated Humidity With Thermosmart™ Compared to an Intranasal Steroid in Improving Compliance and Nasal Symptoms in Patients Using Continuous Positive Airway Pressure

NCT00665977
View directory record Official record
Conditions
Obstructive Sleep Apnea, Nasal Congestion, Sinus Congestion
Interventions
Thermosmart & placebo, Placebo Device & Nasacort, Placebo Arm
Drug · Device
Lead sponsor
Clayton Sleep Insititute
Industry
Eligibility
16 Years to 65 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 6, 2010 · Synced Jul 22, 2026, 1:58 PM EDT
Completed Phase 2 Interventional Results available

A Study to Test a New Decongestant in Patients With Allergic Rhinitis Following a Nasal Allergen Challenge

NCT00562120
View directory record Official record
Conditions
Allergic Rhinitis
Interventions
Placebo, Allegra, Allegra-D, PF-03654746
Drug
Lead sponsor
Pfizer
Industry
Eligibility
19 Years to 55 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Apr 15, 2014 · Synced Jul 22, 2026, 1:58 PM EDT
Completed Not applicable Interventional Results available

The Safety and Efficacy of a SinuSonic Intervention

NCT03906968
View directory record Official record
Conditions
Nasal Congestion
Interventions
SinuSonic Device
Device
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 21, 2021 · Synced Jul 22, 2026, 1:58 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Effects of AkPharma's Calcium Glycerophosphate Nasal Spray Wash

NCT01647633
View directory record Official record
Conditions
Allergic Rhinitis
Interventions
Calcium Glycerophosphate Nasal Spray Wash
Other
Lead sponsor
Drexel University
Other
Eligibility
18 Years to 80 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 24, 2015 · Synced Jul 22, 2026, 1:58 PM EDT
Completed Phase 3 Interventional

Study to Find Out Whether Participants With a History of Stuffy Nose Due to Allergic Reactions in the Nose Would Intend to Buy Drug Phenylephrine Hydrochloride Extended Release Tablets After Receiving it Once in This Study

NCT04534452
View directory record Official record
Conditions
Nasal Congestion Due to Allergic Rhinitis
Interventions
Phenylephrine HCl (Sinus Comfort, BAY112476)
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 60 Years
Enrollment
347 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
1
States / cities
Blue Bell, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 31, 2020 · Synced Jul 22, 2026, 1:58 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Intranasal Capsaicin Treatment for Non-Allergic Irritant Rhinitis

NCT02493257
View directory record Official record
Conditions
Nonallergic Irritant Rhinitis
Interventions
Capsaicin, Placebo
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 70 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2019
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 16, 2020 · Synced Jul 22, 2026, 1:58 PM EDT
Completed Phase 3 Interventional

Placebo and Active Controlled Study to Assess Efficacy and Tolerability of Aspirin Plus Pseudoephedrine

NCT01062360
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Aug 31, 2017 · Synced Jul 22, 2026, 1:58 PM EDT