SMILDA - Symbicort®Turbuhaler® Allergan Challenge Study in Allergic Patients With Mild Asthma

January 21, 2011 updated by: AstraZeneca

A Comparative, Placebo-controlled, Double Blind, Double Dummy, Cross-over, Single Centre, Phase IIIb Study Between Formoterol Alone (Oxis® Turbuhaler® 4.5 µg) and the Fixed Combination of Formoterol and Budesonide (Symbicort® Turbuhaler®160/4.5 µg) on Airway Responsiveness and Airway Inflammation Induced by Repeated Low-dose Allergen Challenge in Allergic Patients With Mild Asthma

To compare the effects of formoterol alone (Oxis® TurbuhalerÒ) and the fixed combination of formoterol and budesonide (Symbicort® TurbuhalerÒ) on airway responsiveness as a marker of inflammation, induced by repeated low-dose allergen challenge in allergic patients with mild asthma

Study Overview

Status

Completed

Conditions

Study Type

Interventional

Enrollment

16

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Stockholm, Sweden
        • Research Site

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 55 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • A diagnosed history of asthma for at least 6 months
  • Mild and stable asthma, only using β2-agonists as needed for the last 4 weeks.
  • FEV1 >70% of predicted normal value (post-bronchodilator value).
  • Skin prick test positive to pollen, animal dander or house dust mite.

Exclusion Criteria:

  • Any significant respiratory disease, other than asthma.
  • Upper or lower respiratory tract infection within 4 weeks before inclusion.
  • Use of:

    1. inhaled glucocorticosteroid treatment for the last 8 weeks prior to inclusion or ever used oral glucocorticoid treatment for asthma.
    2. inhaled long-acting or oral b2-agonists, anticholinergic bronchodilators, cromones, antihistamines, theophyllines and anti-leukotrienes within 2 weeks of screening.
    3. regular NSAIDs

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Double

What is the study measuring?

Primary Outcome Measures

Outcome Measure
PD20 methacholine (measured as the change using the measurement before and after each treatment period).

Secondary Outcome Measures

Outcome Measure
eNO (ppb).
Forced Expiratory Volume in one second (FEV1 ) - Induced sputum:
Total and differential blood cell count
Different Biomarkers
Safety endpoints will be incidence of Serious Adverse Events (SAEs)
Discontinuation due to Adverse Events (DAEs).

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

October 1, 2004

Primary Completion

December 7, 2022

Study Completion (Actual)

May 1, 2006

Study Registration Dates

First Submitted

February 7, 2006

First Submitted That Met QC Criteria

February 7, 2006

First Posted (Estimate)

February 8, 2006

Study Record Updates

Last Update Posted (Estimate)

January 24, 2011

Last Update Submitted That Met QC Criteria

January 21, 2011

Last Verified

January 1, 2011

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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