The Effects of Phenylephrine Compared With Those of Placebo and Pseudoephedrine on Nasal Congestion in Subjects With Seasonal Allergic Rhinitis (SAR)(P04579)

Rhinitis, Allergic, Seasonal Clinical Trial

Official title:

Crossover Study of the Decongestant Effect of Phenylephrine Compared With Placebo and Pseudoephedrine as Active Control in SAR Subjects Exposed to Pollen in the Vienna Challenge Chamber

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT00276016
• Other study ID #: P04579
• Status: Completed
• Phase: Phase 3
• Start date: January 2006
• Est. completion date: February 2006

Study information

• Verified date: February 2022
• Source: Organon and Co
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This is a Phase 3, single-dose, investigator-blind, randomized, placebo-controlled, crossover study, conducted at a single site in Austria, outside of the normal grass pollen season. An allergic reaction will be induced by exposing subjects to grass pollen in the Vienna Challenge Chamber (VCC). Subjects will receive a single dose of each of the following treatments according to a randomization sequence: Phenylephrine 12 mg immediate-release capsule, pseudoephedrine 60 mg immediate-release tablet, and placebo capsule. There will be a minimum of a 5-day washout period between each treatment. Subjects will complete symptom evaluations throughout the study. The nasal decongestant effects of phenylephrine will be compared to those of placebo using the subjective symptom evaluations. The safety profile (adverse events and vital signs) of the treatments will also be evaluated.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 39
• Est. completion date: February 2006
• Est. primary completion date: February 2006
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years to 55 Years

Eligibility

Inclusion Criteria:

• Skin test positive for the grass pollen allergen used in the chamber at Screening or within the prior 12 months.
• A negative urine pregnancy test at Screening and at monthly intervals for female subjects of childbearing potential.
• The following minimum scores at an evaluation time point during each of the 120-minute

screening period challenge sessions:

1. Nasal Congestion Score of at least 2 (moderate);

2. Total Nasal Symptoms Score of at least 6;

3. Total Non-nasal Symptoms Score of at least 2.

• Freedom from any clinically significant disease, other than SAR, that would interfere with the study evaluations.

Exclusion Criteria :

• An upper or lower respiratory tract infection within 4 weeks before Screening.
• Dependence upon nasal, oral, or ocular decongestants, nasal topical antihistamines, or nasal steroids, in the opinion of the investigator.
• A known potential for hypersensitivity, allergy, or idiosyncratic reaction to the study drug or excipients.

Related Conditions & MeSH terms

• Rhinitis
• Rhinitis, Allergic
• Rhinitis, Allergic, Seasonal

Intervention

Drug:
• phenylephrine
immediate-release 12 mg capsules for oral administration
• pseudoephedrine
60 mg immediate-release tablets for oral administration
• placebo
placebo capsules

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
Organon and Co

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	The Average Change From Baseline to Endpoint (6 Hours Post-dosing) in Nasal Congestion for Phenylephrine Compared With Placebo	To evaluate the effect of phenylephrine 12-mg immediate-release capsule on nasal congestion in subjects with seasonal allergic rhinitis (SAR) who have been exposed to pollen for 6 hours in the Vienna Challenge Chamber (VCC). The average change from the Baseline was evaluated immediately before treatment start, over the first 6 hour post-dosing.; The values for the scale are 0,1,2,3 for measure of symptoms, defined as 0-none, 1-mild, 2-moderate, 3-severe. They are subject-evaluated results.	Baseline to endpoint (6 hour period)
Secondary	The Average Change From Baseline to Endpoint (6 Hours Post-dosing) in Nasal Congestion for Pseudoephedrine and Placebo.	To estimate the effect of a pseudoephedrine (PSE) 60 mg immediate release tablet on nasal congestion over a 6-hour observation period relative to placebo; The values for the nasal congestion score scale are 0,1,2,3 for measure of symptoms, defined as 0-none, 1-mild, 2-moderate, 3-severe. They are subject-evaluated results.	Baseline to endpoint (6 hour period)