Mannitol Challenge Test in Adult Asthma Patients With Fixed Dose Combinations
An Open-label Single Site Single Dose Pilot Study Using Mannitol Challenge Test With the Purpose to Explore Treatment With Fixed Dose Combinations in Adult Subjects With Asthma in Primary Care in Sweden
The primary objective in this pilot study is to explore if asthma patients prescribed fixed dose combinations (budenosid/formoterol (Symbicort®), salmeterol/fluticasone (Seretide®), beclometasone/formoterol (Innovair®) are optimal treated regarding the mannitol challenge test and the following reversibility test.
The primary endpoint is to identify asthma patients responding positive or negative to the mannitol challenge test and/or the reversibility test.
The hypothesis is that not all patients are well treated.
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Phase 4
Contacts and Locations
Study Locations
-
-
-
Höllviken, Sweden
- Näsets Läkargrupp i Höllviken
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion criteria
- Males and females, age 18-65 years.
- Subjects diagnosed with asthma.
- Subjects with a baseline FEV1 of ≥70% of the predicted value.
- Outpatients at primary clinic.
- Subjects treated with a fixed dose combination for at least the last three months.
- Subjects who have withheld their asthma- and allergy medication according to individual instructions at the day of the challenge test.
- Subjects who are able to read and comprehend Swedish and are willing to sign an informed consent.
Exclusion Criteria
- Subjects with evidence of any other respiratory and/or obstructive disease including recent infection/exacerbation.
- Subjects treated with a oral corticosteroid within 4 weeks (28 days) prior to the day of the challenge test.
- Any history of hypersensitivity to mannitol challenge test.
- Any contraindications to use of the diagnostic study medication.
- Subjects who are unsuitable for other reason(s) in the opinion of the investigator.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: NON_RANDOMIZED
- Interventional Model: SINGLE_GROUP
- Masking: NONE
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
EXPERIMENTAL: Inhaler
Subjects prescribed fixed dose combinations perform Mannitol Challenge Test and Reversibility Test once
|
Patients perform an asthma control test (ACT) to establish if they are "well controlled" or "symptomatic".
All patients will perform then perform the mannitol challenge test.
Aridol™ is an indirect osmotic bronchial challenge test which can be used to identify bronchial hyperresponsiveness
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Mannitol challenge test (Aridol™) + short-acting β2-agonist - positive response.
Time Frame: One day only (Day 1). Subjects complete an ACT, the mannitol challenge test and the reversibility test. This is the end of the study, there is no follow up.
|
For the Primary efficacy variable, positive response Mannitol challenge test (Aridol™) followed by short-acting β2-agonist will be given as number and percentage for the ITT-population, as defined by the following: ≥15% fall in FEV1 from baseline; 10% incremental fall in FEV1 between two consecutive doses in the test; Reversibility test with a short-acting β2-agonist - increase in FEV1 of ≥15% from the last dose of mannitol in the challenge test.
|
One day only (Day 1). Subjects complete an ACT, the mannitol challenge test and the reversibility test. This is the end of the study, there is no follow up.
|
Collaborators and Investigators
Sponsor
Sponsor
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (ACTUAL)
Primary Completion
Study Completion (ACTUAL)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (ESTIMATE)
First Posted
Study Record Updates
Last Update Posted (ESTIMATE)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- FLT4501
- 2011-000939-86 (EUDRACT_NUMBER)
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