Clinical Trial Results:
A Phase 2, double-blind, randomized, parallel-group, placebo-controlled,
multicenter study, comparing budesonide pMDI 160 μg bid with placebo: a
6-week efficacy and safety study in children aged 6 to <12 years with
asthma
Summary
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EudraCT number |
2010-018315-15 |
Trial protocol |
SK LV HU PL BG |
Global end of trial date |
23 Sep 2013
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Results information
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Results version number |
v1(current) |
This version publication date |
01 Feb 2017
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First version publication date |
05 Aug 2015
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Other versions |
Trial Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
Subject Disposition
Baseline Characteristics
End Points
Adverse Events
More Information
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Trial identification
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Sponsor protocol code |
D589GC00001
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Additional study identifiers
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ISRCTN number |
- | ||
US NCT number |
- | ||
WHO universal trial number (UTN) |
- | ||
Sponsors
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Sponsor organisation name |
AstraZeneca
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Sponsor organisation address |
AstraZeneca R&D, SE-431 83 Mölndal, Sweden,
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Public contact |
Göran Eckerwall, MD, AstraZeneca, ClinicalTrialTransparency@astrazeneca.com
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Scientific contact |
Göran Eckerwall, MD, AstraZeneca, ClinicalTrialTransparency@astrazeneca.com
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Paediatric regulatory details
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Is trial part of an agreed paediatric investigation plan (PIP) |
No
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Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Does article 46 of REGULATION (EC) No 1901/2006 apply to this trial? |
No
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Results analysis stage
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Analysis stage |
Final
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Date of interim/final analysis |
23 Sep 2013
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Is this the analysis of the primary completion data? |
Yes
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Primary completion date |
23 Sep 2013
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Global end of trial reached? |
Yes
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Global end of trial date |
23 Sep 2013
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Was the trial ended prematurely? |
No
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General information about the trial
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Main objective of the trial |
The primary objective of this study was to determine the efficacy of budesonide pMDI 160 μg
bid (80 μg x 2 inhalations bid) as a single ingredient product over a 6-week period in children
aged 6 to <12 years who demonstrated the need for ICS controller therapy.
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Protection of trial subjects |
An Independent Ethics Committee/Institutional Review Board approved the final
clinical study protocol, including the final version of the Informed Consent Form and Child Assent Forms and any other written information and/or materials, to be provided to
the patients in accordance with national regulations. The investigator ensured the distribution
of these documents to the applicable IEC/IRB, and to the study site staff.
The principal investigator at each center ensured that both the patient (assent) and the parent
or legal guardian (consent) were given full and adequate oral and written information about
the nature, purpose, possible risk and benefit of the study. Patients were notified that they
were free to withdraw from the study at any time. The patient was given the opportunity to
ask questions and allowed time to consider the information provided.
The patient’s signed and dated informed assent and the parent or legal guardian’s consent
were obtained and documented before conducting any study procedures.
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Background therapy |
- | ||
Evidence for comparator |
- | ||
Actual start date of recruitment |
07 Aug 2011
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Long term follow-up planned |
No
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Independent data monitoring committee (IDMC) involvement? |
No
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Population of trial subjects
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Number of subjects enrolled per country |
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Country: Number of subjects enrolled |
Bulgaria: 24
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Country: Number of subjects enrolled |
Hungary: 112
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Country: Number of subjects enrolled |
Latvia: 17
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Country: Number of subjects enrolled |
Poland: 25
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Country: Number of subjects enrolled |
Slovakia: 5
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Country: Number of subjects enrolled |
South Africa: 11
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Country: Number of subjects enrolled |
United States: 110
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Worldwide total number of subjects |
304
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EEA total number of subjects |
183
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Number of subjects enrolled per age group |
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In utero |
0
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Preterm newborn - gestational age < 37 wk |
0
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Newborns (0-27 days) |
0
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Infants and toddlers (28 days-23 months) |
0
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Children (2-11 years) |
304
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Adolescents (12-17 years) |
0
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Adults (18-64 years) |
0
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From 65 to 84 years |
0
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85 years and over |
0
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Recruitment
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Recruitment details |
This multicenter study was conducted in Bulgaria, Hungary, Latvia, Poland, Slovakia, South Africa, and the United States between 07 August 2011 and 05 April 2013. | |||||||||||||||||||||
Pre-assignment
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Screening details |
The study consisted of a screening visit (Visit 1), an enrollment visit (Visit 2), a 7- to 21-day run-in/qualification period, a randomization visit (Visit 3), and 6 further weekly visits during a treatment period of 6 weeks. A telephone follow-up was conducted approximately 2 weeks after the final study visit. | |||||||||||||||||||||
Period 1
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Period 1 title |
Overall Study (overall period)
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Is this the baseline period? |
Yes | |||||||||||||||||||||
Allocation method |
Randomised - controlled
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Blinding used |
Double blind | |||||||||||||||||||||
Roles blinded |
Investigator, Monitor, Carer, Data analyst, Subject, Assessor | |||||||||||||||||||||
Arms
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Are arms mutually exclusive |
Yes
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Arm title
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Placebo | |||||||||||||||||||||
Arm description |
Placebo pMDI bid | |||||||||||||||||||||
Arm type |
Placebo | |||||||||||||||||||||
Investigational medicinal product name |
Placebo pMDI bid
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Inhalation powder
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Routes of administration |
Inhalation use
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Dosage and administration details |
2 inhalations bid
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Arm title
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Budesonide | |||||||||||||||||||||
Arm description |
Budesonide pMDI 160 mcg bid | |||||||||||||||||||||
Arm type |
Experimental | |||||||||||||||||||||
Investigational medicinal product name |
Budesonide pMDI 160 μg bid
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Investigational medicinal product code |
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Other name |
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Pharmaceutical forms |
Inhalation powder
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Routes of administration |
Inhalation use
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Dosage and administration details |
80 μg x 2 inhalations bid
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Baseline characteristics reporting groups
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Reporting group title |
Placebo
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Reporting group description |
Placebo pMDI bid | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Budesonide
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Reporting group description |
Budesonide pMDI 160 mcg bid | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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End points reporting groups
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Reporting group title |
Placebo
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Reporting group description |
Placebo pMDI bid | ||
Reporting group title |
Budesonide
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Reporting group description |
Budesonide pMDI 160 mcg bid |
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End point title |
Change in morning peak expiratory flow (PEF) from baseline to the treatment period average | ||||||||||||
End point description |
The peak expiratory flow rate is the maximal rate that a person can exhale during a short maximal expiratory effort after a full inspiration. Baseline was calculated using the mean of the data recorded during the last 7 days of the run-in period, and the treatment period average was calculated as the mean of all available data recorded during the entire treatment period.
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End point type |
Primary
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End point timeframe |
Baseline to 6 weeks
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Statistical analysis title |
Morning PEF | ||||||||||||
Statistical analysis description |
Change from baseline to treatment period average was analyzed using an analysis of covariance (ANCOVA) model with terms for treatment, age group (<8 years and ≥8 years of age) and country with baseline as a covariate.
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Comparison groups |
Placebo v Budesonide
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Number of subjects included in analysis |
302
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Analysis specification |
Pre-specified
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Analysis type |
superiority | ||||||||||||
P-value |
< 0.0001 [1] | ||||||||||||
Method |
ANCOVA | ||||||||||||
Parameter type |
LS mean difference | ||||||||||||
Point estimate |
13.6
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Confidence interval |
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level |
95% | ||||||||||||
sides |
2-sided
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lower limit |
7.5 | ||||||||||||
upper limit |
19.7 | ||||||||||||
Variability estimate |
Standard error of the mean
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Dispersion value |
3.1
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Notes [1] - To address multiplicity, a step-down procedure was used. If the treatment difference for the primary variable, morning PEF, was statistically significant (p<0.05), then the key secondary variable, FEV1, was tested at the 0.05 level of significance. |
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End point title |
Change in Forced expiratory volume in 1 second (FEV1) from baseline to treatment period average | ||||||||||||
End point description |
FEV1 is the volume exhaled during the first second of a forced expiratory maneuver started from the level of total lung capacity. Baseline was defined as the pre-dose assessment value measured at randomization (Visit 3), and the treatment period average was calculated as the mean of all available data recorded during the entire treatment period.
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End point type |
Secondary
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End point timeframe |
Baseline to 6 weeks
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Statistical analysis title |
FEV1 | ||||||||||||
Statistical analysis description |
Change from baseline to treatment period average was analyzed using an analysis of covariance (ANCOVA) model with terms for treatment, age group (<8 years and ≥8 years of age) and country with baseline as a covariate.
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Comparison groups |
Placebo v Budesonide
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Number of subjects included in analysis |
301
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Analysis specification |
Pre-specified
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Analysis type |
superiority | ||||||||||||
P-value |
= 0.0047 [2] | ||||||||||||
Method |
ANCOVA | ||||||||||||
Parameter type |
LS mean difference | ||||||||||||
Point estimate |
0.06
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Confidence interval |
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level |
95% | ||||||||||||
sides |
2-sided
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lower limit |
0.02 | ||||||||||||
upper limit |
0.11 | ||||||||||||
Variability estimate |
Standard error of the mean
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Dispersion value |
0.022
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Notes [2] - To address multiplicity, a step-down procedure was used. If the treatment difference for the primary variable, morning PEF, was statistically significant (p<0.05), then the key secondary variable, FEV1, was tested at the 0.05 level of significance. |
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End point title |
Change in evening PEF from baseline to the treatment period average | ||||||||||||
End point description |
The peak expiratory flow rate is the maximal rate that a person can exhale during a short maximal expiratory effort after a full inspiration. Baseline was calculated using the mean of the data recorded during the last 7 days of the run-in period, and the treatment period average was calculated as the mean of all available data recorded during the entire treatment period.
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End point type |
Secondary
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End point timeframe |
Baseline to 6 weeks
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Statistical analysis title |
Evening PEF | ||||||||||||
Statistical analysis description |
Change from baseline to treatment period average was analyzed using an ANCOVA model with terms for treatment, age group (<8 years and ≥8 years of age) and country with baseline as a covariate.
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Comparison groups |
Placebo v Budesonide
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Number of subjects included in analysis |
301
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Analysis specification |
Pre-specified
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Analysis type |
superiority | ||||||||||||
P-value |
= 0.0004 | ||||||||||||
Method |
ANCOVA | ||||||||||||
Parameter type |
LS mean difference | ||||||||||||
Point estimate |
10.8
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Confidence interval |
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level |
95% | ||||||||||||
sides |
2-sided
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lower limit |
4.9 | ||||||||||||
upper limit |
16.7 | ||||||||||||
Variability estimate |
Standard error of the mean
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Dispersion value |
3
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End point title |
Change in forced vital capacity (FVC) from baseline to treatment period average | ||||||||||||
End point description |
FVC is the total volume of air expired after a full inspiration. Baseline was defined as the pre-dose assessment value measured at randomization (Visit 3), and the treatment period average was calculated as the mean of all available data recorded during the entire treatment period.
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End point type |
Secondary
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End point timeframe |
Baseline to 6 weeks
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Statistical analysis title |
FVC | ||||||||||||
Statistical analysis description |
Change from baseline to treatment period average was analyzed using an ANCOVA model with terms for treatment, age group (<8 years and ≥8 years of age) and country with baseline as a covariate.
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Comparison groups |
Placebo v Budesonide
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Number of subjects included in analysis |
301
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Analysis specification |
Pre-specified
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Analysis type |
superiority | ||||||||||||
P-value |
= 0.0673 | ||||||||||||
Method |
ANCOVA | ||||||||||||
Parameter type |
LS mean difference | ||||||||||||
Point estimate |
0.04
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Confidence interval |
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level |
95% | ||||||||||||
sides |
2-sided
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lower limit |
0 | ||||||||||||
upper limit |
0.08 | ||||||||||||
Variability estimate |
Standard error of the mean
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Dispersion value |
0.02
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End point title |
Change in forced mid-expiratory flow between 25% and 75% of the FVC (FEF25-75) from baseline to treatment period average | ||||||||||||
End point description |
FEF25-75 is the average rate of airflow during the midportion of the forced vital capacity. Baseline was defined as the pre-dose assessment value measured at randomization (Visit 3), and the treatment period average was calculated as the mean of all available data recorded during the entire treatment period.
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End point type |
Secondary
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End point timeframe |
Baseline to 6 weeks
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Statistical analysis title |
FEF25-75 | ||||||||||||
Statistical analysis description |
Change from baseline to treatment period average was analyzed using an ANCOVA model with terms for treatment, age group (<8 years and ≥8 years of age) and country with baseline as a covariate.
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Comparison groups |
Placebo v Budesonide
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Number of subjects included in analysis |
301
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Analysis specification |
Pre-specified
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Analysis type |
superiority | ||||||||||||
P-value |
= 0.0216 | ||||||||||||
Method |
ANCOVA | ||||||||||||
Parameter type |
LS mean difference | ||||||||||||
Point estimate |
0.1
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Confidence interval |
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level |
95% | ||||||||||||
sides |
2-sided
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lower limit |
0.01 | ||||||||||||
upper limit |
0.19 | ||||||||||||
Variability estimate |
Standard error of the mean
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Dispersion value |
0.044
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End point title |
Change in total daily and daytime asthma symptom scores from baseline to treatment period average | ||||||||||||||||||
End point description |
Patients, with the help of their caregiver, were required to rate and document their asthma symptoms twice daily as an overall symptom score for the time period since their previous recording. The following rating scales were used: 0 = None; no symptoms of asthma; 1 = Mild symptoms; awareness of asthma symptoms and/or signs that are easily tolerated; 2 = Moderate symptoms, asthma symptoms with some discomfort, causing some interference with daily activities or sleep; 3 = Severe symptoms; incapacitating asthma symptoms and/or signs, with inability to perform daily activities or to sleep.
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End point type |
Secondary
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End point timeframe |
Baseline to 6 weeks
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Statistical analysis title |
Daytime asthma symptom scores | ||||||||||||||||||
Statistical analysis description |
Change from baseline to treatment period average was analyzed using an ANCOVA model with terms for treatment, age group (<8 years and ≥8 years of age) and country with baseline as a covariate.
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Comparison groups |
Placebo v Budesonide
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Number of subjects included in analysis |
303
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Analysis specification |
Pre-specified
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Analysis type |
superiority | ||||||||||||||||||
P-value |
= 0.0004 [3] | ||||||||||||||||||
Method |
ANCOVA | ||||||||||||||||||
Parameter type |
LS mean difference | ||||||||||||||||||
Point estimate |
-0.2
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Confidence interval |
|||||||||||||||||||
level |
95% | ||||||||||||||||||
sides |
2-sided
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lower limit |
-0.31 | ||||||||||||||||||
upper limit |
-0.09 | ||||||||||||||||||
Variability estimate |
Standard error of the mean
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Dispersion value |
0.06
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Notes [3] - Analysis for change in daytime asthma symptom score from baseline to treatment period average. |
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Statistical analysis title |
Total daily asthma symptom scores | ||||||||||||||||||
Statistical analysis description |
Change from baseline to treatment period average was analyzed using an ANCOVA model with terms for treatment, age group (<8 years and ≥8 years of age) and country with baseline as a covariate.
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Comparison groups |
Placebo v Budesonide
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Number of subjects included in analysis |
303
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Analysis specification |
Pre-specified
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Analysis type |
superiority | ||||||||||||||||||
P-value |
= 0.0015 [4] | ||||||||||||||||||
Method |
ANCOVA | ||||||||||||||||||
Parameter type |
LS mean difference | ||||||||||||||||||
Point estimate |
-0.3
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Confidence interval |
|||||||||||||||||||
level |
95% | ||||||||||||||||||
sides |
2-sided
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lower limit |
-0.55 | ||||||||||||||||||
upper limit |
-0.13 | ||||||||||||||||||
Variability estimate |
Standard error of the mean
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Dispersion value |
0.11
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Notes [4] - Analysis for change in total asthma symptom score from baseline to treatment period average. |
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End point title |
Change in nighttime asthma symptom score from baseline to treatment period average | ||||||||||||
End point description |
Patients, with the help of their caregiver, were required to rate and document their asthma symptoms twice daily as an overall symptom score for the time period since their previous recording. The following rating scales were used: 0 = None; no symptoms of asthma; 1 = Mild symptoms; awareness of asthma symptoms and/or signs that are easily tolerated; 2 = Moderate symptoms, asthma symptoms with some discomfort, causing some interference with daily activities or sleep; 3 = Severe symptoms; incapacitating asthma symptoms and/or signs, with inability to perform daily activities or to sleep.
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End point type |
Secondary
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End point timeframe |
Baseline to 6 weeks
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Statistical analysis title |
Nighttime asthma symptom scores | ||||||||||||
Statistical analysis description |
Change from baseline to treatment period average was analyzed using an ANCOVA model with terms for treatment, age group (<8 years and ≥8 years of age) and country with baseline as a covariate.
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Comparison groups |
Placebo v Budesonide
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Number of subjects included in analysis |
304
|
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Analysis specification |
Pre-specified
|
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Analysis type |
superiority | ||||||||||||
P-value |
= 0.0079 | ||||||||||||
Method |
ANCOVA | ||||||||||||
Parameter type |
LS mean difference | ||||||||||||
Point estimate |
-0.1
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Confidence interval |
|||||||||||||
level |
95% | ||||||||||||
sides |
2-sided
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lower limit |
-0.26 | ||||||||||||
upper limit |
-0.04 | ||||||||||||
Variability estimate |
Standard error of the mean
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Dispersion value |
0.06
|
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End point title |
Change in nighttime awakenings and nighttime awakenings with reliever medication use from baseline to treatment period average | ||||||||||||||||||
End point description |
Patients, with the help of their caregiver, were asked to respond to a standard question each morning as they completed their eDiary. The question to be answered was, “Did your asthma cause you to wake-up last night?” If yes, patients were asked, “Did you need to use your reliever medication (albuterol/salbutamol inhaler) before you went back to sleep?” Baseline is defined as the percentage of days where patient experienced nighttime awakenings out of all available days where data was collected during the last 7 days of the run-in period.
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End point type |
Secondary
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End point timeframe |
Baseline to 6 weeks
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Statistical analysis title |
Awakenings (%) | ||||||||||||||||||
Statistical analysis description |
Change from baseline to treatment period average was analyzed using an ANCOVA model with terms for treatment, age group (<8 years and ≥8 years of age) and country with baseline as a covariate.
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Comparison groups |
Placebo v Budesonide
|
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Number of subjects included in analysis |
304
|
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Analysis specification |
Pre-specified
|
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Analysis type |
superiority | ||||||||||||||||||
P-value |
= 0.0095 [5] | ||||||||||||||||||
Method |
ANCOVA | ||||||||||||||||||
Parameter type |
LS mean difference | ||||||||||||||||||
Point estimate |
-4.7
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Confidence interval |
|||||||||||||||||||
level |
95% | ||||||||||||||||||
sides |
2-sided
|
||||||||||||||||||
lower limit |
-8.2 | ||||||||||||||||||
upper limit |
-1.1 | ||||||||||||||||||
Variability estimate |
Standard error of the mean
|
||||||||||||||||||
Dispersion value |
1.78
|
||||||||||||||||||
Notes [5] - Analysis for change in nighttime awakenings from baseline to treatment period average. |
|||||||||||||||||||
Statistical analysis title |
Awakenings with reliever use (%) | ||||||||||||||||||
Statistical analysis description |
Change from baseline to treatment period average was analyzed using an ANCOVA model with terms for treatment, age group (<8 years and ≥8 years of age) and country with baseline as a covariate.
|
||||||||||||||||||
Comparison groups |
Placebo v Budesonide
|
||||||||||||||||||
Number of subjects included in analysis |
304
|
||||||||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||||||||
Analysis type |
superiority | ||||||||||||||||||
P-value |
= 0.0007 [6] | ||||||||||||||||||
Method |
ANCOVA | ||||||||||||||||||
Parameter type |
LS mean difference | ||||||||||||||||||
Point estimate |
-3.9
|
||||||||||||||||||
Confidence interval |
|||||||||||||||||||
level |
95% | ||||||||||||||||||
sides |
2-sided
|
||||||||||||||||||
lower limit |
-6.2 | ||||||||||||||||||
upper limit |
-1.7 | ||||||||||||||||||
Variability estimate |
Standard error of the mean
|
||||||||||||||||||
Dispersion value |
1.15
|
||||||||||||||||||
Notes [6] - Analysis for change in nighttime awakenings with reliever medication use from baseline to treatment period average. |
|
|||||||||||||||||||
End point title |
Change in total daily and daytime reliever medication use from baseline to treatment period average | ||||||||||||||||||
End point description |
The patient, with the help of their caregiver, recorded the number of inhalations of reliever medication used, for relief of asthma symptoms, twice daily in the eDiary. Patients were asked to respond to a standard question twice daily (morning and evening). The question to be answered was, “How many albuterol/salbutamol inhalations since last diary entry?”
|
||||||||||||||||||
End point type |
Secondary
|
||||||||||||||||||
End point timeframe |
Baseline to 6 weeks
|
||||||||||||||||||
|
|||||||||||||||||||
Statistical analysis title |
Daytime reliever use (inh/day) | ||||||||||||||||||
Statistical analysis description |
Change from baseline to treatment period average was analyzed using an ANCOVA model with terms for treatment, age group (<8 years and ≥8 years of age) and country with baseline as a covariate.
|
||||||||||||||||||
Comparison groups |
Placebo v Budesonide
|
||||||||||||||||||
Number of subjects included in analysis |
303
|
||||||||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||||||||
Analysis type |
superiority | ||||||||||||||||||
P-value |
= 0.0001 [7] | ||||||||||||||||||
Method |
ANCOVA | ||||||||||||||||||
Parameter type |
LS mean difference | ||||||||||||||||||
Point estimate |
-0.3
|
||||||||||||||||||
Confidence interval |
|||||||||||||||||||
level |
95% | ||||||||||||||||||
sides |
2-sided
|
||||||||||||||||||
lower limit |
-0.4 | ||||||||||||||||||
upper limit |
-0.1 | ||||||||||||||||||
Variability estimate |
Standard error of the mean
|
||||||||||||||||||
Dispersion value |
0.07
|
||||||||||||||||||
Notes [7] - Analysis for change in daytime reliever medication use from baseline to treatment period average. |
|||||||||||||||||||
Statistical analysis title |
Total reliever use (inh/day) | ||||||||||||||||||
Statistical analysis description |
Change from baseline to treatment period average was analyzed using an ANCOVA model with terms for treatment, age group (<8 years and ≥8 years of age) and country with baseline as a covariate.
|
||||||||||||||||||
Comparison groups |
Placebo v Budesonide
|
||||||||||||||||||
Number of subjects included in analysis |
303
|
||||||||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||||||||
Analysis type |
superiority | ||||||||||||||||||
P-value |
< 0.0001 [8] | ||||||||||||||||||
Method |
ANCOVA | ||||||||||||||||||
Parameter type |
LS mean difference | ||||||||||||||||||
Point estimate |
-0.5
|
||||||||||||||||||
Confidence interval |
|||||||||||||||||||
level |
95% | ||||||||||||||||||
sides |
2-sided
|
||||||||||||||||||
lower limit |
-0.7 | ||||||||||||||||||
upper limit |
-0.2 | ||||||||||||||||||
Variability estimate |
Standard error of the mean
|
||||||||||||||||||
Dispersion value |
0.11
|
||||||||||||||||||
Notes [8] - Analysis for change in total reliever medication use from baseline to treatment period average. |
|
|||||||||||||
End point title |
Change in nighttime reliever medication use from baseline to treatment period average | ||||||||||||
End point description |
The patient, with the help of their caregiver, recorded the number of inhalations of reliever medication used, for relief of asthma symptoms, twice daily in the eDiary. Patients were asked to respond to a standard question twice daily (morning and evening). The question to be answered was, “How many albuterol/salbutamol inhalations since last diary entry?”
|
||||||||||||
End point type |
Secondary
|
||||||||||||
End point timeframe |
Baseline to 6 weeks
|
||||||||||||
|
|||||||||||||
Statistical analysis title |
Nightime reliever use (inh/day) | ||||||||||||
Statistical analysis description |
Change from baseline to treatment period average was analyzed using an ANCOVA model with terms for treatment, age group (<8 years and ≥8 years of age) and country with baseline as a covariate.
|
||||||||||||
Comparison groups |
Placebo v Budesonide
|
||||||||||||
Number of subjects included in analysis |
304
|
||||||||||||
Analysis specification |
Pre-specified
|
||||||||||||
Analysis type |
superiority | ||||||||||||
P-value |
< 0.0001 | ||||||||||||
Method |
ANCOVA | ||||||||||||
Parameter type |
LS mean difference | ||||||||||||
Point estimate |
-0.2
|
||||||||||||
Confidence interval |
|||||||||||||
level |
95% | ||||||||||||
sides |
2-sided
|
||||||||||||
lower limit |
-0.3 | ||||||||||||
upper limit |
-0.1 | ||||||||||||
Variability estimate |
Standard error of the mean
|
||||||||||||
Dispersion value |
0.06
|
|
||||||||||
End point title |
Number of withdrawals due to pre-defined asthma events | |||||||||
End point description |
Patients were considered to have experienced a “pre-defined asthma event” if any of the following conditions were met during the study: 1. At each visit or follow-up visit, a decrease in morning pre-dose FEV1 >=20% from the Visit 3 (randomization visit) morning pre-dose FEV1 or a decrease to <65% of predicted normal value; 2. The use of >=8 actuations of albuterol/salbutamol per day on 3 or more days within any period of 7 consecutive days following randomization; 3. A decrease in morning PEF >=20% from baseline on 3 or more days within any period of 7 consecutive days after randomization; 4. Two or more nights with an awakening due to asthma, which required the use of reliever medication within any period of 7 consecutive days after randomization; 5. A clinical exacerbation requiring emergency treatment, hospitalization, or use of an asthma medication not allowed by the study protocol.
|
|||||||||
End point type |
Secondary
|
|||||||||
End point timeframe |
Baseline to 6 weeks
|
|||||||||
|
||||||||||
Statistical analysis title |
Time to withdrawal due to asthma event | |||||||||
Statistical analysis description |
Log rank test for time to withdrawal due to predefined asthma event.
|
|||||||||
Comparison groups |
Placebo v Budesonide
|
|||||||||
Number of subjects included in analysis |
304
|
|||||||||
Analysis specification |
Pre-specified
|
|||||||||
Analysis type |
superiority | |||||||||
P-value |
= 0.0004 | |||||||||
Method |
Logrank | |||||||||
Confidence interval |
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Adverse events information
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Timeframe for reporting adverse events |
Adverse events were collected from enrollment (Visit 2) throughout the treatment period and included the 2-week follow-up period (last contact by telephone).
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Adverse event reporting additional description |
Only AEs starting on or after the first dose and <=1 day after last dose are included in the summaries below.
A total of 153 patients reported non-serious adverse events; 64 on Budesonide pMDI 160mcg b.i.d, 89 on Placebo pMDI b.i.d. Numbers for non-serious AEs in the reporting group table are based on the 2.5% threshold frequency.
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Assessment type |
Systematic | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary used for adverse event reporting
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary name |
MedDRA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dictionary version |
15.1
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting groups
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Placebo pMDI b.i.d.
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group description |
- | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group title |
Budesonide pMDI 160mcg b.i.d.
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reporting group description |
- | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Frequency threshold for reporting non-serious adverse events: 2% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|
|||
Substantial protocol amendments (globally) |
|||
Were there any global substantial amendments to the protocol? Yes | |||
Date |
Amendment |
||
12 May 2010 |
The entry criteria stating that reversibility of FEV1 of ≥15% from prealbuterol/salbutamol level within 15 to 30 minutes after administration of a standard dose of albuterol/salbutamol was updated to ≥12%. It was also stated that only 1 attempt at reversibility would be allowed. The instruction that prophylactic or regularly scheduled use of study reliever medications was not allowed in this study was updated to state that prophylactic or regularly scheduled use of these medications should be avoided. |
||
27 Sep 2010 |
The use of nasal steroids was further restricted to prohibit initiation of nasal steroid treatment, titration of dose, and change of dosing frequency during the study. |
||
22 Jun 2011 |
Within the patient population targeted for recruitment, FEV1 and/or FEV1 reversibility vary over time. Allowing 2 opportunities for patients to demonstrate a pre-bronchodilator morning clinic FEV1 within the specified range and to demonstrate reversibility of FEV1 of ≥12% was expected to enhance recruitment without changing the characterization of the study patient population or jeopardizing patient safety. |
||
30 Nov 2011 |
The purpose of the amendment was to increase the probability of successful patient screening and randomization into the study and to increase the probability of patients who were randomized to complete the treatment period without impacting the characterization of the patient population being studied. |
||
Interruptions (globally) |
|||
Were there any global interruptions to the trial? No | |||
Limitations and caveats |
|||
Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data. | |||
None reported |