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Efficacy and Safety of 2 Doses of Tiotropium Respimat Compared to Placebo in Adolescents With Severe Persistent Asthma

A Randomised, Double-blind, Placebo-controlled, Parallel-group Trial to Evaluate Efficacy and Safety of Tiotropium Inhalation Solution Delivered Via Respimat® Inhaler (2.5 mcg and 5 mcg Once Daily) Over 12 Weeks as add-on Controller Therapy on Top of Usual Care in Adolescents (12 to 17 Years Old) With Severe Persistent Asthma

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01277523
Enrollment
392
Registered
2011-01-17
Start date
2011-01-31
Completion date
2013-10-31
Last updated
2014-10-20

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

Conditions

Asthma

Brief summary

The overall purpose of the trial is to evaluate efficacy and safety of tiotropium inhalation solution delivered via Respimat® inhaler (2.5 mcg and 5 mcg once daily) over 12 weeks, compared to placebo, as add-on controller therapy on top of usual care in adolescents (12 to 17 years old) with severe persistent asthma. The primary objective of the trial is to demonstrate superiority of tiotropium (5 mcg and possibly 2.5 mcg once daily in the evening) over placebo with regard to the primary pulmonary function endpoint after 12 weeks of treatment. Secondary objectives are to evaluate efficacy of tiotropium with regard to other endpoints, and to evaluate the safety of tiotropium, compared to placebo, as add-on controller therapy on top of usual care in this patient population.

Interventions

2 actuations once daily

DRUGplacebo

2 actuations once daily

2 actuations once daily

Sponsors

Pfizer
CollaboratorINDUSTRY
Boehringer Ingelheim
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE

Eligibility

Sex/Gender
ALL
Age
12 Years to 17 Years
Healthy volunteers
No

Inclusion criteria

1. All patients and their parent(s) (or legally accepted representative) must sign and date respectively an informed assent and an informed consent consistent with International Conference on Harmonisation - Harmonised Tripartite Guideline for Good Clinical Practice (ICH-GCP) guidelines and local legislation prior to the patient's participation in the trial. A separate informed consent/assent is required for pharmacogenomic sampling. 2. Male or female patients between 12 and 17 years of age (at date of informed consent/assent). 3. All patients must have at least a 3-month history of asthma at the time of enrolment into the trial. 4. All patients must have been on maintenance treatment with an inhaled corticosteroid either at stable high dose in combination with another controller medication, OR at stable medium dose in combination with two other controller medications, for at least 4 weeks before Visit 1. 5. All patients must be symptomatic at Visit 1 (screening) and prior to randomisation at Visit 2 as defined by an Asthma Control Questionnaire (ACQ) mean score of = 1.5. 6. All patients must have a pre-bronchodilator Forced Expiratory Volume in 1 second (FEV1) = 60% and = 90% of predicted normal at Visit 1. 7. Variation of absolute FEV1 values of Visit 1 (pre-bronchodilator, considered as 100%) as compared to Visit 2 (pre-dose) must be within ± 30%. 8. All patients must confirm the diagnosis of asthma by bronchodilator reversibility at Visit 1, resulting in an increase in FEV1 of = 12% and = 200 mL 15 to 30 minutes after 400 µg salbutamol (albuterol). If patients in the lower age range (e.g. 12 to 14 year old patients) exhibit a very small total lung volume, positive reversibility testing might be based solely on the relative (=12%) post-bronchodilator response. 9. All patients must be never-smokers or ex-smokers who stopped smoking at least one year prior to enrolment. 10. Patients must be able to use the Respimat® inhaler correctly. 11. Patients must be able to perform all trial related procedures including technically acceptable spirometric manoeuvres according to American Thoracic Society/ European Respiratory Society (ATS/ERS) standards and use of the electronic diary/peak flow meter (diary compliance of at least 80% is required).

Exclusion criteria

1. Significant disease other than asthma. 2. Abnormal haematology or blood chemistry. 3. History of heart disease, and/or hospitalised for cardiac syncope or failure. 4. Any unstable or life-threatening or requiring intervention or cardiac arrhythmia. 5. Malignancy for which the patient has undergone resection, radiation therapy or chemotherapy. 6. Active tuberculosis. 7. Alcohol or drug abuse. 8. Thoracotomy with pulmonary resection. 9. Pulmonary rehabilitation program. 10. Hypersensitivity to anticholinergic drugs, or any components of the study medication delivery system. 11. Pregnant or nursing adolescent female patients. 12. Female patients of child-bearing potential not using a highly effective method of birth control. 13. Investigational drug within four weeks or six half lives prior to Visit 1. 14. Long-acting anticholinergics within four weeks prior to Visit 1. 15. Systemic corticosteroids at a high dose or at a not stable low dose within four weeks prior to Visit 1. 16. Leukotriene modifiers if not stabilised for at least four weeks prior to Visit 1. 17. Long-acting theophylline preparations if not stabilised for at least two weeks prior to Visit 1. 18. Anti Immunoglobulin E (Anti-IgE) treatment if not stabilised for at least six months prior to Visit 1. 19. Cromones if not stabilised within four weeks prior to Visit 1. 20. Oral beta-blocker medication within four weeks prior to Visit 1. 21. Systemic oral or i.v. or s.c. beta-adrenergics within four weeks prior to Visit 1. 22. Other non-approved and according to international guidelines not recommended experimental drugs for routine asthma therapy within four weeks prior to Visit 1. 23. Any acute asthma exacerbation or respiratory tract infection in the four weeks prior to Visit 1and/or in the four weeks prior to Visit 2. In case of an asthma deterioration occurring in the four weeks prior to Visit 1 and/or in the four weeks prior to Visit 2, the visit must be postponed. 24. Randomised in this trial or currently participating in another trial. 25. Narrow-angle glaucoma, or any other disease where anticholinergic treatment is contraindicated. 26. Moderate to severe renal impairment. 27. Patients requiring 10 or more puffs of rescue medication per day on more than 2 consecutive days in the four weeks prior to Visit 1 and/or in the four weeks prior to Visit 2. In case of an asthma deterioration occurring in the four weeks prior to Visit 1 and/or in the four weeks prior to Visit 2, the visit must be postponed.

Design outcomes

Primary

MeasureTime frameDescription
FEV1 peak0-3 Change From BaselineBaseline and 12 weeksChange from baseline in peak forced expiratory volume in 1 second within the first 3 hours post dosing (FEV1 peak0-3) measured at week 12. Measured values presented are actually adjusted means.

Secondary

MeasureTime frameDescription
FVC peak0-3 Change From BaselineBaseline and 12 weeksChange from baseline in Maximum forced vital capacity (FVC) measured within the first 3 hours after administration of trial medication (FVC peak0-3h) after 12 weeks of treatment. The measured values presented are actually adjusted means.
FEV1 AUC (0-3h) Change From BaselineBaseline and 10 mins before drug administration and 30 mins, 1 hour (h), 2h, 3h after drug administration at 12 weeksChange from baseline of area under the curve (AUC) from 0 to 3 hours for FEV1 (FEV1 AUC 0-3h) after 12 weeks of treatment. The AUC was calculated by using the trapezoidal rule divided by the observation time (3h). Measured values presented are actually adjusted means.
FVC AUC (0-3h) Change From BaselineBaseline and 10 mins before drug administration and 30 mins, 1 hour (h), 2h, 3h after drug administration at 12 weeksChange from baseline of area under the curve (AUC) from 0 to 3 hours for FVC (Forced vital capacity) (FVC AUC0-3h) after 12 weeks of treatment. The AUC was calculated by using the trapezoidal rule divided by the observation time (3h). Measured values presented are actually adjusted means.
Control of Asthma as Assessed by ACQ6 Score.Baseline and 12 weeksChange from baseline in Asthma Control Questionnaire (ACQ) 6 score measured at week 12 The ACQ is a scale containing 7 questions, each question has a 7 point scale which ranges from 0 to 6. A score of 0 corresponds to no impairment and a score of 6 corresponds to maximum impairment. ACQ6 score is calculated as the mean of the responses to the first 6 questions of the ACQ6. The measured values presented are actually adjusted means.
ACQ6 Score Responders12 weeksResponder rates based on the ACQ6 score after 12 weeks of treatment. Analysis was performed using the following categories and definitions: responder (change from trial baseline \<= -0.5), no change (-0.5 \< change from trial baseline \<0.5) and worsening (change from trial baseline \>= 0.5). The ACQ is a scale containing 7 questions, each question has a 7- point scale which ranges from 0 to 6; a score of 0 corresponds to no impairment and a score of 6 corresponds to maximum impairment. ACQ6 is calculated as the mean of the responses to the first 6 questions of the ACQ6. No statistical testing was performed on ACQ6 responders.
Control of Asthma as Assessed by ACQ Total ScoreBaseline and 12 weeksChange from baseline in Asthma Control Questionnaire (ACQ) total score measured at week 12. The ACQ is a scale containing 7 questions. Each question has a 7 point scale which ranges from 0 to 6. A score of 0 corresponds to no impairment and a score of 6 corresponds to maximum impairment. ACQ total score is calculated as the mean of the responses to all 7 questions. The measured values presented are actually adjusted means.
Trough FEV1 Change From BaselineBaseline and 12 weeksChange from baseline in Trough (pre-dose) Forced expiratory volume in 1 second (FEV1) measured at week 12. Measured values presented are actually adjusted means.
Use of PRN Rescue Medication During the DayBaseline and 12 weeksChange from baseline in the number of puffs of rescue medication (salbutamol/albuterol) used during the day (24 hour period) based on the weekly mean at week 12. The measured values presented are actually adjusted means.
Use of PRN Rescue Medication During the DaytimeBaseline and 12 weeksChange from baseline in the number of puffs of rescue medication (salbutamol/albuterol) used during the daytime based on the weekly mean at week 12. Measured values presented are actually adjusted means.
Use of PRN Rescue Medication During the Night-timeBaseline and 12 weeksChange from baseline in the number of puffs of rescue medication (salbutamol/albuterol) used during the night-time based on the weekly mean at week 12. Measured values presented are actually adjusted means
Time to First Severe Asthma Exacerbation During the 12-week Treatment Period.12 weeksTime in days to first severe asthma exacerbation during the 12 week treatment period. The median time to first severe asthma exacerbation was not calculable, so the number of patients who experienced a severe asthma exacerbation are presented for the measured values. A severe asthma exacerbation was defined as a subgroup of all asthma exacerbations that required an initiation of treatment with systemic corticosteroids for at least 3 days or, in case of ongoing and pre-existing systemic corticosteroid therapy, requiring at least doubling of previous daily doses of systemic corticosteroids for at least 3 days.
Analysis of Time to First Asthma Exacerbation During the 12 Week Treatment Period.12 weeksTime in days to first asthma exacerbation during the 12 week treatment period. The median time to first asthma exacerbation was not calculable, so the number of patients who experienced an asthma exacerbation are presented for the measured values.
Clinically Relevant Abnormalities for Physical Examination, ECG, Vital Signs and Laboratory TestsFrom first drug administration until 30 days after last drug intake, up to 142 daysClinically relevant abnormalities for physical examination, ECG, vital signs and laboratory tests. New abnormal findings or worsening of baseline conditions were reported as adverse events.
ACQ Total Score Responders12 weeksResponder rates based on the ACQ total score after 12 weeks of treatment. Analysis was performed using the following categories and definitions: responder (change from trial baseline ≤-0.5), no change (-0.5 \<change from trial baseline \<0.5) and worsening (change from trial baseline ≥0.5) No statistical testing was performed for ACQ total score responders. The ACQ is a scale containing 7 questions, each question has a 7-point scale which ranges from 0 to 6; a score of 0 corresponds to no impairment and a score of 6 corresponds to maximum impairment.

Countries

Argentina, Australia, Bulgaria, Germany, Guatemala, Hungary, Israel, Latvia, Mexico, Philippines, Portugal, South Africa, Ukraine, United States

Participant flow

Participants by arm

ArmCount
Placebo Respimat
Inhalation of placebo solution once daily for 12 weeks delivered by the Respimat Inhaler, as add on therapy on top of usual care.
135
Tio R2.5
Inhalation of 2.5mcg tiotropium bromide solution once daily for 12 weeks delivered by the Respimat Inhaler, as add on therapy on top of usual care.
127
Tio R5
Inhalation of 5mcg tiotropium bromide solution once daily for 12 weeks delivered by the Respimat Inhaler, as add on therapy on top of usual care.
130
Total392

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event100
Overall StudyOther Reason not Defined010
Overall StudyProtocol Violation200

Baseline characteristics

CharacteristicPlacebo RespimatTio R2.5Tio R5Total
Age, Continuous14.1 years
STANDARD_DEVIATION 1.7
14.4 years
STANDARD_DEVIATION 1.8
14.3 years
STANDARD_DEVIATION 1.6
14.2 years
STANDARD_DEVIATION 1.7
Sex: Female, Male
Female
56 Participants47 Participants47 Participants150 Participants
Sex: Female, Male
Male
79 Participants80 Participants83 Participants242 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
23 / 13523 / 12716 / 130
serious
Total, serious adverse events
0 / 1351 / 1272 / 130

Outcome results

Primary

FEV1 peak0-3 Change From Baseline

Change from baseline in peak forced expiratory volume in 1 second within the first 3 hours post dosing (FEV1 peak0-3) measured at week 12. Measured values presented are actually adjusted means.

Time frame: Baseline and 12 weeks

Population: Full Analysis Set (FAS) was the same as the treated set which included all randomised patients who were dispensed and received at least one documented dose of trial medication. Missing data at a visit was imputed by the available data from the patient at that visit. Completely missing data were handled by the statistical model.

ArmMeasureValue (MEAN)Dispersion
Placebo RespimatFEV1 peak0-3 Change From Baseline0.438 litresStandard Error 0.045
Tio R2.5FEV1 peak0-3 Change From Baseline0.550 litresStandard Error 0.046
Tio R5FEV1 peak0-3 Change From Baseline0.528 litresStandard Error 0.045
p-value: 0.045795% CI: [0.002, 0.22]Mixed Models Analysis
p-value: 0.103995% CI: [-0.019, 0.198]Mixed Models Analysis
Secondary

ACQ6 Score Responders

Responder rates based on the ACQ6 score after 12 weeks of treatment. Analysis was performed using the following categories and definitions: responder (change from trial baseline \<= -0.5), no change (-0.5 \< change from trial baseline \<0.5) and worsening (change from trial baseline \>= 0.5). The ACQ is a scale containing 7 questions, each question has a 7- point scale which ranges from 0 to 6; a score of 0 corresponds to no impairment and a score of 6 corresponds to maximum impairment. ACQ6 is calculated as the mean of the responses to the first 6 questions of the ACQ6. No statistical testing was performed on ACQ6 responders.

Time frame: 12 weeks

Population: Full Analysis Set which included all randomised patients who were dispensed and received at least one documented dose of trial medication.~Missing data for patients not withdrawn from the study were either categorised as no change or based on available data, withdrawn patients were imputed based upon discontinuation reason.

ArmMeasureGroupValue (NUMBER)
Placebo RespimatACQ6 Score RespondersNo Change23.7 percentage of participants
Placebo RespimatACQ6 Score RespondersResponder74.1 percentage of participants
Placebo RespimatACQ6 Score RespondersWorsening2.2 percentage of participants
Tio R2.5ACQ6 Score RespondersNo Change19.7 percentage of participants
Tio R2.5ACQ6 Score RespondersResponder74.0 percentage of participants
Tio R2.5ACQ6 Score RespondersWorsening6.3 percentage of participants
Tio R5ACQ6 Score RespondersResponder74.6 percentage of participants
Tio R5ACQ6 Score RespondersWorsening2.3 percentage of participants
Tio R5ACQ6 Score RespondersNo Change23.1 percentage of participants
Secondary

ACQ Total Score Responders

Responder rates based on the ACQ total score after 12 weeks of treatment. Analysis was performed using the following categories and definitions: responder (change from trial baseline ≤-0.5), no change (-0.5 \<change from trial baseline \<0.5) and worsening (change from trial baseline ≥0.5) No statistical testing was performed for ACQ total score responders. The ACQ is a scale containing 7 questions, each question has a 7-point scale which ranges from 0 to 6; a score of 0 corresponds to no impairment and a score of 6 corresponds to maximum impairment.

Time frame: 12 weeks

Population: Full Analysis Set which included all randomised patients who were dispensed and received at least one documented dose of trial medication. Missing data for patients not withdrawn from the study were either categorised as no change or based on available data. Withdrawn patients were imputed based upon discontinuation reason.

ArmMeasureGroupValue (NUMBER)
Placebo RespimatACQ Total Score RespondersNo Change23.7 percentage of participants
Placebo RespimatACQ Total Score RespondersResponder73.3 percentage of participants
Placebo RespimatACQ Total Score RespondersWorsening3.0 percentage of participants
Tio R2.5ACQ Total Score RespondersNo Change22.0 percentage of participants
Tio R2.5ACQ Total Score RespondersResponder74.8 percentage of participants
Tio R2.5ACQ Total Score RespondersWorsening3.1 percentage of participants
Tio R5ACQ Total Score RespondersResponder73.1 percentage of participants
Tio R5ACQ Total Score RespondersWorsening0.8 percentage of participants
Tio R5ACQ Total Score RespondersNo Change26.2 percentage of participants
Secondary

Analysis of Time to First Asthma Exacerbation During the 12 Week Treatment Period.

Time in days to first asthma exacerbation during the 12 week treatment period. The median time to first asthma exacerbation was not calculable, so the number of patients who experienced an asthma exacerbation are presented for the measured values.

Time frame: 12 weeks

Population: Full Analysis Set (FAS) was the same as the treated set which included all randomised patients who were dispensed and received at least one documented dose of trial medication.

ArmMeasureValue (NUMBER)
Placebo RespimatAnalysis of Time to First Asthma Exacerbation During the 12 Week Treatment Period.25 participants
Tio R2.5Analysis of Time to First Asthma Exacerbation During the 12 Week Treatment Period.18 participants
Tio R5Analysis of Time to First Asthma Exacerbation During the 12 Week Treatment Period.15 participants
p-value: 0.356795% CI: [0.41, 1.38]Regression, Cox
p-value: 0.116895% CI: [0.32, 1.14]Regression, Cox
Secondary

Clinically Relevant Abnormalities for Physical Examination, ECG, Vital Signs and Laboratory Tests

Clinically relevant abnormalities for physical examination, ECG, vital signs and laboratory tests. New abnormal findings or worsening of baseline conditions were reported as adverse events.

Time frame: From first drug administration until 30 days after last drug intake, up to 142 days

Population: Treated set which included all randomised patients who were dispensed and received, at least one documented dose of trial medication.

ArmMeasureGroupValue (NUMBER)
Placebo RespimatClinically Relevant Abnormalities for Physical Examination, ECG, Vital Signs and Laboratory TestsPeak expiratory flow rate decreased9.6 percentage of participants
Placebo RespimatClinically Relevant Abnormalities for Physical Examination, ECG, Vital Signs and Laboratory TestsBlood glucose decreased0.0 percentage of participants
Tio R2.5Clinically Relevant Abnormalities for Physical Examination, ECG, Vital Signs and Laboratory TestsPeak expiratory flow rate decreased7.1 percentage of participants
Tio R2.5Clinically Relevant Abnormalities for Physical Examination, ECG, Vital Signs and Laboratory TestsBlood glucose decreased0.8 percentage of participants
Tio R5Clinically Relevant Abnormalities for Physical Examination, ECG, Vital Signs and Laboratory TestsPeak expiratory flow rate decreased3.8 percentage of participants
Tio R5Clinically Relevant Abnormalities for Physical Examination, ECG, Vital Signs and Laboratory TestsBlood glucose decreased0.0 percentage of participants
Secondary

Control of Asthma as Assessed by ACQ6 Score.

Change from baseline in Asthma Control Questionnaire (ACQ) 6 score measured at week 12 The ACQ is a scale containing 7 questions, each question has a 7 point scale which ranges from 0 to 6. A score of 0 corresponds to no impairment and a score of 6 corresponds to maximum impairment. ACQ6 score is calculated as the mean of the responses to the first 6 questions of the ACQ6. The measured values presented are actually adjusted means.

Time frame: Baseline and 12 weeks

Population: Full Analysis Set (FAS) was the same as the treated set which included all randomised patients who were dispensed and received at least one documented dose of trial medication. Missing data at a visit was imputed by the available data from the patient at that visit. Completely missing data were handled by the statistical model.

ArmMeasureValue (MEAN)Dispersion
Placebo RespimatControl of Asthma as Assessed by ACQ6 Score.1.144 units on a scaleStandard Error 0.069
Tio R2.5Control of Asthma as Assessed by ACQ6 Score.1.262 units on a scaleStandard Error 0.071
Tio R5Control of Asthma as Assessed by ACQ6 Score.1.197 units on a scaleStandard Error 0.07
p-value: 0.181995% CI: [-0.055, 0.292]Mixed Models Analysis
p-value: 0.544895% CI: [-0.119, 0.226]Mixed Models Analysis
Secondary

Control of Asthma as Assessed by ACQ Total Score

Change from baseline in Asthma Control Questionnaire (ACQ) total score measured at week 12. The ACQ is a scale containing 7 questions. Each question has a 7 point scale which ranges from 0 to 6. A score of 0 corresponds to no impairment and a score of 6 corresponds to maximum impairment. ACQ total score is calculated as the mean of the responses to all 7 questions. The measured values presented are actually adjusted means.

Time frame: Baseline and 12 weeks

Population: Full Analysis Set (FAS) was the same as the treated set which included all randomised patients who were dispensed and received at least one documented dose of trial medication. Missing data at a visit was imputed by the available data from the patient at that visit. Completely missing data were handled by the statistical model.

ArmMeasureValue (MEAN)Dispersion
Placebo RespimatControl of Asthma as Assessed by ACQ Total Score1.234 units on a scaleStandard Error 0.064
Tio R2.5Control of Asthma as Assessed by ACQ Total Score1.292 units on a scaleStandard Error 0.066
Tio R5Control of Asthma as Assessed by ACQ Total Score1.270 units on a scaleStandard Error 0.065
p-value: 0.476295% CI: [-0.102, 0.219]Mixed Models Analysis
p-value: 0.655895% CI: [-0.123, 0.196]Mixed Models Analysis
Secondary

FEV1 AUC (0-3h) Change From Baseline

Change from baseline of area under the curve (AUC) from 0 to 3 hours for FEV1 (FEV1 AUC 0-3h) after 12 weeks of treatment. The AUC was calculated by using the trapezoidal rule divided by the observation time (3h). Measured values presented are actually adjusted means.

Time frame: Baseline and 10 mins before drug administration and 30 mins, 1 hour (h), 2h, 3h after drug administration at 12 weeks

Population: Full Analysis Set (FAS) was the same as the treated set which included all randomised patients who were dispensed and received at least one documented dose of trial medication. Missing data at a visit was imputed by the available data from the patient at that visit. Completely missing data were handled by the statistical model.

ArmMeasureValue (MEAN)Dispersion
Placebo RespimatFEV1 AUC (0-3h) Change From Baseline0.336 LitresStandard Error 0.043
Tio R2.5FEV1 AUC (0-3h) Change From Baseline0.449 LitresStandard Error 0.043
Tio R5FEV1 AUC (0-3h) Change From Baseline0.423 LitresStandard Error 0.043
p-value: 0.033895% CI: [0.009, 0.217]Mixed Models Analysis
p-value: 0.099995% CI: [-0.017, 0.191]Mixed Models Analysis
Secondary

FVC AUC (0-3h) Change From Baseline

Change from baseline of area under the curve (AUC) from 0 to 3 hours for FVC (Forced vital capacity) (FVC AUC0-3h) after 12 weeks of treatment. The AUC was calculated by using the trapezoidal rule divided by the observation time (3h). Measured values presented are actually adjusted means.

Time frame: Baseline and 10 mins before drug administration and 30 mins, 1 hour (h), 2h, 3h after drug administration at 12 weeks

Population: Full Analysis Set (FAS) was the same as the treated set which included all randomised patients who were dispensed and received at least one documented dose of trial medication. Missing data at a visit was imputed by the available data from the patient at that visit. Completely missing data were handled by the statistical model.

ArmMeasureValue (MEAN)Dispersion
Placebo RespimatFVC AUC (0-3h) Change From Baseline0.175 litresStandard Error 0.045
Tio R2.5FVC AUC (0-3h) Change From Baseline0.262 litresStandard Error 0.047
Tio R5FVC AUC (0-3h) Change From Baseline0.227 litresStandard Error 0.046
p-value: 0.125295% CI: [-0.024, 0.198]Mixed Models Analysis
p-value: 0.354995% CI: [-0.058, 0.163]Mixed Models Analysis
Secondary

FVC peak0-3 Change From Baseline

Change from baseline in Maximum forced vital capacity (FVC) measured within the first 3 hours after administration of trial medication (FVC peak0-3h) after 12 weeks of treatment. The measured values presented are actually adjusted means.

Time frame: Baseline and 12 weeks

Population: Full Analysis Set (FAS) was the same as the treated set which included all randomised patients who were dispensed and received at least one documented dose of trial medication. Missing data at a visit was imputed by the available data from the patient at that visit. Completely missing data were handled by the statistical model.

ArmMeasureValue (MEAN)Dispersion
Placebo RespimatFVC peak0-3 Change From Baseline0.279 LitresStandard Error 0.048
Tio R2.5FVC peak0-3 Change From Baseline0.370 LitresStandard Error 0.049
Tio R5FVC peak0-3 Change From Baseline0.342 LitresStandard Error 0.048
p-value: 0.126495% CI: [-0.026, 0.207]Mixed Models Analysis
p-value: 0.284595% CI: [-0.053, 0.179]Mixed Models Analysis
Secondary

Time to First Severe Asthma Exacerbation During the 12-week Treatment Period.

Time in days to first severe asthma exacerbation during the 12 week treatment period. The median time to first severe asthma exacerbation was not calculable, so the number of patients who experienced a severe asthma exacerbation are presented for the measured values. A severe asthma exacerbation was defined as a subgroup of all asthma exacerbations that required an initiation of treatment with systemic corticosteroids for at least 3 days or, in case of ongoing and pre-existing systemic corticosteroid therapy, requiring at least doubling of previous daily doses of systemic corticosteroids for at least 3 days.

Time frame: 12 weeks

Population: Full Analysis Set (FAS) was the same as the treated set which included all randomised patients who were dispensed and received at least one documented dose of trial medication.

ArmMeasureValue (NUMBER)
Placebo RespimatTime to First Severe Asthma Exacerbation During the 12-week Treatment Period.1 participants
Tio R2.5Time to First Severe Asthma Exacerbation During the 12-week Treatment Period.1 participants
Tio R5Time to First Severe Asthma Exacerbation During the 12-week Treatment Period.2 participants
p-value: 0.967195% CI: [0.07, 16.95]Regression, Cox
p-value: 0.555795% CI: [0.19, 22.7]Regression, Cox
Secondary

Trough FEV1 Change From Baseline

Change from baseline in Trough (pre-dose) Forced expiratory volume in 1 second (FEV1) measured at week 12. Measured values presented are actually adjusted means.

Time frame: Baseline and 12 weeks

Population: Full Analysis Set (FAS) was the same as the treated set which included all randomised patients who were dispensed and received at least one documented dose of trial medication. Missing data at a visit was imputed by the available data from the patient at that visit. Completely missing data were handled by the statistical model.

ArmMeasureValue (MEAN)Dispersion
Placebo RespimatTrough FEV1 Change From Baseline0.230 litresStandard Error 0.048
Tio R2.5Trough FEV1 Change From Baseline0.345 litresStandard Error 0.048
Tio R5Trough FEV1 Change From Baseline0.284 litresStandard Error 0.048
p-value: 0.050995% CI: [0, 0.231]Mixed Models Analysis
p-value: 0.360595% CI: [-0.061, 0.168]Mixed Models Analysis
Secondary

Use of PRN Rescue Medication During the Day

Change from baseline in the number of puffs of rescue medication (salbutamol/albuterol) used during the day (24 hour period) based on the weekly mean at week 12. The measured values presented are actually adjusted means.

Time frame: Baseline and 12 weeks

Population: Full Analysis Set (FAS) was the same as the treated set which included all randomised patients who were dispensed and received at least one documented dose of trial medication. Missing data was imputed by the available data from the patient. Completely missing data were handled by the statistical model.

ArmMeasureValue (MEAN)Dispersion
Placebo RespimatUse of PRN Rescue Medication During the Day-0.482 Number of puffs of rescue medicationStandard Error 0.118
Tio R2.5Use of PRN Rescue Medication During the Day-0.483 Number of puffs of rescue medicationStandard Error 0.122
Tio R5Use of PRN Rescue Medication During the Day-0.540 Number of puffs of rescue medicationStandard Error 0.12
p-value: 0.99695% CI: [-0.301, 0.3]Mixed Models Analysis
p-value: 0.70395% CI: [-0.355, 0.239]Mixed Models Analysis
Secondary

Use of PRN Rescue Medication During the Daytime

Change from baseline in the number of puffs of rescue medication (salbutamol/albuterol) used during the daytime based on the weekly mean at week 12. Measured values presented are actually adjusted means.

Time frame: Baseline and 12 weeks

Population: Full Analysis Set (FAS) was the same as the treated set which included all randomised patients who were dispensed and received at least one documented dose of trial medication. Missing data was imputed by the available data from the patient. Completely missing data were handled by the statistical model.

ArmMeasureValue (MEAN)Dispersion
Placebo RespimatUse of PRN Rescue Medication During the Daytime-0.262 Number of puffs of rescue medicationStandard Error 0.073
Tio R2.5Use of PRN Rescue Medication During the Daytime-0.295 Number of puffs of rescue medicationStandard Error 0.075
Tio R5Use of PRN Rescue Medication During the Daytime-0.312 Number of puffs of rescue medicationStandard Error 0.073
p-value: 0.730995% CI: [-0.217, 0.153]Mixed Models Analysis
p-value: 0.595495% CI: [-0.232, 0.133]Mixed Models Analysis
Secondary

Use of PRN Rescue Medication During the Night-time

Change from baseline in the number of puffs of rescue medication (salbutamol/albuterol) used during the night-time based on the weekly mean at week 12. Measured values presented are actually adjusted means

Time frame: Baseline and 12 weeks

Population: Full Analysis Set (FAS) was the same as the treated set which included all randomised patients who were dispensed and received at least one documented dose of trial medication. Missing data was imputed by the available data from the patient. Completely missing data were handled by the statistical model.

ArmMeasureValue (MEAN)Dispersion
Placebo RespimatUse of PRN Rescue Medication During the Night-time-0.180 Number of puffs of rescue medicationStandard Error 0.064
Tio R2.5Use of PRN Rescue Medication During the Night-time-0.092 Number of puffs of rescue medicationStandard Error 0.066
Tio R5Use of PRN Rescue Medication During the Night-time-0.159 Number of puffs of rescue medicationStandard Error 0.065
p-value: 0.284195% CI: [-0.074, 0.252]Mixed Models Analysis
p-value: 0.79595% CI: [-0.14, 0.182]Mixed Models Analysis

Source: ClinicalTrials.gov · Data processed: Mar 2, 2026