The Effect of HFA - Beclomethasone Dipropionate Qvar on Bronchial Hyperreactivity in Preschool Children
Respiratory diseases including Asthma are high prevalent among preschool children. Specific treatment, nowadays, include steroid inhalers and anti leukotrienes. It is known that the amount of the drug reaching small airways and lungs is bigger how much smaller the particles liberated by inhalers. Beclometasone is being used for treating asthma for 30 years. Lately emerged a new presentation of beclometasone, which liberates particles as small as 2.1 µg, that is supposed to reach the small airways at higher concentrations and be more suitable to patients who don't cooperate properly to the procedure of inhalation.
The investigators' group has reported successfully the possibility to perform Pulmonary Challenge tests (adenosine, methacholine and exercise) in tender age. Other studies reported relation between asthma control and reduction in airway hyperreactivity. The purpose of this study is to evaluate the efficacy of Beclometasone dipropionate - Qvar to reduce airways hyperreactivity in preschool children, as demonstrated by adenosine challenge test.
|Asthma Bronchial Hyperresponsiveness||Drug: Beclomethasone dipropionate HFA Drug: placebo||Phase 2|
|Study Design:||Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Double Blind (Participant, Care Provider, Investigator)
Primary Purpose: Treatment
|Official Title:||The Effect of HFA - Beclomethasone Dipropionate - Qvar - on Bronchial Hyperreactivity in Preschool Children|
- Adenosine Challenge Test [ Time Frame: ten weeks ]Adenosine challenge test were measured and described as PC 20 - the concentration that corresponded to a FEV1 impairment equal or bigger than 20%. The stage was also recorded
|Study Start Date:||March 2009|
|Study Completion Date:||March 2010|
|Primary Completion Date:||February 2010 (Final data collection date for primary outcome measure)|
Placebo Comparator: placebo, adenosine challenge test
Controlled or partially controlled multiple trigger wheezing children received 4 weeks of placebo, preceded and succeeded by AMP challenge test,
inhalation twice a day for one month, preceded and followed by adenosine challenge test
Active Comparator: Qvar, adenosine challenge test
Patients will receive 4 weeks of inhale QVAR (HFA beclomethasone) 100µg through a spacer device, twice a day
Drug: Beclomethasone dipropionate HFA
100µg twice a day, through inhaler autohaler, using a spacer device, preceded and followed by adenosine challenge test
Other Name: Qvar
26 - 30 patients, between 3 -6 years old, mild asthmatics, with positive adenosine challenge test, will received in a randomized, double blind, cross over assignment Beclometasone dipropionate (100µg twice a day) or placebo, through an inhaler (autohaler) device, attached to a spacer device, during four consecutive weeks. Adenosine Challenge test will be performed another time at the end of this four weeks period. After 2 weeks with no medication (wash out period) the patients will receive the second intervention (beclometasone dipropionate or placebo) in a cross over manner and will be submitted to the last adenosine challenge test.
Clinical evaluation, resting spirometry and subjective evaluation through an analogical symptoms scale will be recorded in each visit.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01006655
|Rambam Medical Center|
|Principal Investigator:||Lea Bentur, MD||Rambam Health Care Campus|