Skip to content

Cross-Over 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

Cross-Over 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

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2005-004309-27-AT
Enrollment
39
Registered
2005-11-23
Start date
2005-12-28
Completion date
Unknown
Last updated
2013-04-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Seasonal Allergic Rhinitis

Interventions

Trade Name: (Non Drowsy Sudafed® Decongestant Tablets Product Name: pseudoephedrine hydrochloride, 60 mg Product Code: PSE Pharmaceutical Form: Tablet Pharmaceutical form of the placebo: Capsule* Rout

Sponsors

Schering Plough Research Institute
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Skin test positive for the grass pollen allergen used in the chamber at screening or within the prior 12 months. 2. A negative urine pregnancy test at screening and at monthly intervals for female subjects of childbearing potential. 3. The following minimum scores at some point during each of the 120-minute screening periods challenge sessions: a. nasal congestion scoreof at least 2 (moderate) b. total nasal symptoms score of at least 6 c. total non-nasal symptoms score of at least 2 4. Freedom from any clinically significant disease, other than SAR, that would interfere with the study evaluations. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: 1. An upper or lower respiratory tract infection within 4 weeks before screening. 2. Dependence upon nasal, oral, or ocular decongestants, nasal topical antihistamines, or nasal steroids, in the opinion of the investigator. 3. A known potential for hypersensitivity, allergy, or idiosyncratic reaction to the study drug or excipients.

Design outcomes

Primary

MeasureTime frame
Main Objective: The primary objective of this study is to evaluate the effect of phenylephrine 12 mg immediate-release tablet on nasal congestion compared with that of placebo in subjects with seasonal allergic rhinitis (SAR) who have been exposed to pollen in the Vienna Challenge Chamber (VCC). Pseudoephedrine 60 mg immediate-release tablet will be included in the study as an active arm.;Secondary Objective: The key secondary objective is to estimate the effect of phenylephrine 12 mg and PSE 60 mg on nasal congestion over the 7.5 hour observaton period relative to placebo. Another secondary objective is to evaluate the safety profile of post dose adverse events and vitals signs compared with predose evaluations. Postdose blood pressure and pulse will be collected hourly and at final time point.;Primary end point(s): The primary efficacy parameter is the subjectively evaluated nasal decongestant effect expressed as an average change from baseline over the 7.5-hour evaluation period. The primary comparison for this variable is phenylephrine 12 mg versus placebo.

Countries

Austria

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026