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AzTrials

AsthmaPhase 2NCT01311661

A Study to Compare the Efficacy and Safety of Different Dosings of Olodaterol Administered With the Respimat® Inhaler in Patients With Moderate to Severe Asthma

A Phase 2 study testing Olodaterol low daily dose twice daily and Olodaterol medium daily dose twice daily in people with Asthma, run by Boehringer Ingelheim at 36 sites in 6 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study will compare efficacy and safety of different regimens of olodaterol administration in asthma (once daily, twice daily) with placebo in a complete cross-over design each within one of the two daily dose groups (medium or high daily dose). Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Asthma
What is being tested?
Olodaterol low daily dose twice daily and Olodaterol medium daily dose twice daily
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
206 participants
Where
36 sitesin 6 countries
Study dates
Mar 2011to Dec 2011
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients of either sex.
  • Aged 18 to 70 years.
  • A current diagnosis and a documented minimum 3 month history of asthma Global Initiative for Asthma (GINA) treatment steps 3 and 4.
  • Prebronchodilator Forced Expiratory Volume in one second (FEV1) >= 60% predicted and < 90% predicted according to European Coal and Steel Community (ECSC).
  • Increase in FEV1 >=12% and >=200 mL 15 min. after 400 µg salbutamol (albuterol);
  • Stable on medium to high dose inhaled corticosteroids (ICS) or low to high dose ICS in combination with a long acting beta-adrenergics (LABA) for at least 6 weeks prior to screening. Stable on ICS mono component of the former fixed LABA/ICS treatment for at least 48 hours prior to Visit 1b.

Who cannot join

  • Patients with a significant disease other than asthma.
  • History of frequent seasonal exacerbations of asthma (defined as one or more seasonal exacerbations every year for the past three years).
  • Upper respiratory tract infection in the past 3 weeks prior to screening visit 1b.
  • Oral or other systemic corticosteroids in the past 6 weeks.
  • Patients with allergen desensitization therapy if started within two years, if they are not on an established maintenance regimen characterized by dose adjustments but no further increase to the tolerable maximum in the same course of immunotherapy.

Trial locations and contacts

36 sites in 6 countries.

36 sites in 6 countries

United States12 sites
  • 1222.29.11008 Boehringer Ingelheim Investigational Site

    Canton, Ohio

  • 1222.29.11001 Boehringer Ingelheim Investigational Site

    Centennial, Colorado

  • 1222.29.11007 Boehringer Ingelheim Investigational Site

    Cincinnati, Ohio

  • 1222.29.11006 Boehringer Ingelheim Investigational Site

    Huntington Beach, California

  • 1222.29.11004 Boehringer Ingelheim Investigational Site

    North Dartmouth, Massachusetts

  • 1222.29.11002 Boehringer Ingelheim Investigational Site

    Overland Park, Kansas

  • 1222.29.11003 Boehringer Ingelheim Investigational Site

    Raleigh, North Carolina

  • 1222.29.11010 Boehringer Ingelheim Investigational Site

    Richmond, Virginia

  • 1222.29.11009 Boehringer Ingelheim Investigational Site

    Skillman, New Jersey

  • 1222.29.11005 Boehringer Ingelheim Investigational Site

    Spartanburg, South Carolina

  • 1222.29.11011 Boehringer Ingelheim Investigational Site

    St Louis, Missouri

  • 1222.29.11012 Boehringer Ingelheim Investigational Site

    Wheat Ridge, Colorado

Other trials in United States

Germany10 sites
  • 1222.29.49004 Boehringer Ingelheim Investigational Site

    Berlin

  • 1222.29.49006 Boehringer Ingelheim Investigational Site

    Berlin

  • 1222.29.49007 Boehringer Ingelheim Investigational Site

    Berlin

  • 1222.29.49008 Boehringer Ingelheim Investigational Site

    Berlin

  • 1222.29.49002 Boehringer Ingelheim Investigational Site

    Frankfurt

  • 1222.29.49010 Boehringer Ingelheim Investigational Site

    Großhansdorf

  • 1222.29.49003 Boehringer Ingelheim Investigational Site

    Lübeck

  • 1222.29.49005 Boehringer Ingelheim Investigational Site

    Rüdersdorf

  • 1222.29.49001 Boehringer Ingelheim Investigational Site

    Wiesbaden

  • 1222.29.49009 Boehringer Ingelheim Investigational Site

    Wiesloch

Other trials in Germany

Austria4 sites
  • 1222.29.43003 Boehringer Ingelheim Investigational Site

    Linz

  • 1222.29.43002 Boehringer Ingelheim Investigational Site

    Schlüsslberg

  • 1222.29.43001 Boehringer Ingelheim Investigational Site

    Thalheim bei Wels

  • 1222.29.43004 Boehringer Ingelheim Investigational Site

    Wels

Other trials in Austria

Hungary4 sites
  • 1222.29.36002 Boehringer Ingelheim Investigational Site

    Mosonmagyaróvár

  • 1222.29.36003 Boehringer Ingelheim Investigational Site

    Nyíregyháza

  • 1222.29.36001 Boehringer Ingelheim Investigational Site

    Sopron

  • 1222.29.36004 Boehringer Ingelheim Investigational Site

    Zalaegerszeg

Other trials in Hungary

Slovakia4 sites
  • 1222.29.42001 Boehringer Ingelheim Investigational Site

    Bardejov

  • 1222.29.42002 Boehringer Ingelheim Investigational Site

    Martin

  • 1222.29.42004 Boehringer Ingelheim Investigational Site

    Nitra

  • 1222.29.42003 Boehringer Ingelheim Investigational Site

    Spišská Nová Ves

Other trials in Slovakia

Slovenia2 sites
  • 1222.29.38003 Boehringer Ingelheim Investigational Site

    Golnik

  • 1222.29.38002 Boehringer Ingelheim Investigational Site

    Kamnik

Other trials in Slovenia

About this study

Official title: Phase II, Randomised, Double-Blind, Cross-over Study to Compare the 24-hour FEV1-time Profile of Orally Inhaled Olodaterol, Delivered With the Respimat® Inhaler, After 3 Weeks of Olodaterol Once Daily Medium Dose, Twice Daily Low Dose and Placebo or After 3 Weeks of Once Daily High Dose, Twice Daily Medium Dose and Placebo Administration in Patients With Moderate to Severe Persistent Asthma

This study will compare efficacy and safety of different regimens of olodaterol administration in asthma (once daily, twice daily) with placebo in a complete cross-over design each within one of the two daily dose groups (medium or high daily dose).

Conditions
Asthma
Being tested
Placebo twice daily, Olodaterol low daily dose twice daily, Olodaterol medium daily dose twice daily, Olodaterol high daily dose once daily and placebo, Olodaterol medium daily dose once daily and placebo
Medical subject headings
Asthma

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Placebo twice dailyDrug

    Inhaled Placebo of Olodaterol twice daily

  • Olodaterol low daily dose twice dailyDrug

    Inhaled Olodaterol medium daily dose administered as low dose twice daily

  • Olodaterol medium daily dose twice dailyDrug

    Inhaled Olodaterol high daily dose administered as medium dose twice daily

  • Placebo twice dailyDrug

    Inhaled Placebo of Olodaterol twice daily

  • Olodaterol high daily dose once daily and placeboDrug

    Inhaled Olodaterol high daily dose administered as one full dose once daily and placebo once daily

  • Olodaterol medium daily dose once daily and placeboDrug

    Inhaled Olodaterol medium daily dose administered as one full dose once daily and placebo once daily

Study groups in NCT01311661
Study groupRoleWhat they receive
Olodaterol medium daily doseExperimentalOlodaterol medium daily dose given either as once daily or split into two low doses daily or placebo only in randomised sequence of three cross-over treatment phases
Receives: Drug: Olodaterol low daily dose twice daily; Drug: Placebo twice daily; Drug: Olodaterol medium daily dose once daily and placebo
Olodaterol high daily doseExperimentalOlodaterol high daily dose given either as once daily or split into two medium doses daily or placebo only in randomised sequence of three cross-over treatment phases
Receives: Drug: Placebo twice daily; Drug: Olodaterol medium daily dose twice daily; Drug: Olodaterol high daily dose once daily and placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Forced Expiratory Volume in 1 Second (FEV1) Area Under Curve 0-24 Hours (AUC 0-24h) Response at the End of Each Treatment Period

    Response was defined as change from baseline. Study baseline FEV1 was defined as the mean of the available pre-dose FEV1 values at the randomisation visit. Means are adjusted for treatment, period, patient and study baseline. FEV1 AUC 0-24h was calculated from 0-24 hours post-dose using the trapezoidal rule, divided by the observation time (24h) to report in litres.

    Measured: 1 hour (h) prior and 10 minutes (min) prior to first dose (baseline) and -1 h, -10 mins, 30 min, 60 min, 2 h, 3 h, 4 h, 6 h, 8 h, 10 h, 11 h 50 min, 12 h 30 min, 13 h, 14 h, 22 h, 23 h, and 23 h 50 min related to morning dose after 3 weeks

Secondary outcomes (26)
  1. FEV1 Area Under Curve 0-12 Hours (AUC 0-12h) Response at the End of Each Treatment Period

    Response was defined as change from baseline. Study baseline FEV1 was defined as the mean of the available pre-dose FEV1 values at the randomisation visit. Means are adjusted for treatment, period, patient and study baseline. FEV1 AUC 0-12h was calculated from 0-12 hours post-dose using the trapezoidal rule, divided by the observation time (12h) to report in litres.

    Measured: 1 hour (h) prior and 10 minutes (min) prior to first dose (baseline) and -1 h, -10 mins, 30 min, 60 min, 2 h, 3 h, 4 h, 6 h, 8 h, 10 h, 11 h 50 min related to morning dose after 3 weeks

  2. FEV1 Area Under Curve 12-24 Hours (AUC 12-24h) Response at the End of Each Treatment Period

    Response was defined as change from baseline. Study baseline FEV1 was defined as the mean of the available pre-dose FEV1 values at the randomisation visit. Means are adjusted for treatment, period, patient and study baseline. FEV1 AUC 12-24h was calculated from 12-24 hours post-dose using the trapezoidal rule, divided by the observation time (12h) to report in litres.

    Measured: 1 hour (h) prior and 10 minutes (min) prior to first dose (baseline) and 11 h 50 min, 12 h 30 min, 13 h, 14 h, 22 h, 23 h, and 23 h 50 min related to morning dose after 3 weeks

  3. Peak FEV1 Within 24 Hours Post-dose Response

    Response was defined as change from baseline. Study baseline FEV1 was defined as the mean of the available pre-dose FEV1 values at the randomisation visit. Peak FEV1 within 24 hours post dose measured following the morning trial drug inhalation at the end of each 3 week period of randomised treatment. Means are adjusted for treatment, period, patient and study baseline.

    Measured: 1 hour (h) prior and 10 minutes (min) prior to first dose (baseline) and 30 min, 60 min, 2 h, 3 h, 4 h, 6 h, 8h, 10 h, 11 h 50 min, 12 h 30 min, 13 h, 14 h, 22 h, 23 h, and 23 h 50 min related to morning dose after 3 weeks

  4. Trough FEV1 Response

    Response was defined as change from baseline. Study baseline FEV1 was defined as the mean of the available pre-dose FEV1 values at the randomisation visit. Trough values were defined as the mean of 2 FEV1 values performed at 23 h and 23 h 50 min after the last morning trial drug inhalation at the end of each 3 week period of randomised treatment. Means are adjusted for treatment, period, patient and study baseline.

    Measured: 1 hour (h) prior and 10 minutes (min) prior to first dose (baseline) and 23 h, and 23 h 50 min related to morning dose after 3 weeks

  5. Forced Vital Capacity (FVC) Area Under Curve 0-12 Hours (AUC 0-12h) Response

    Response was defined as change from baseline. Study baseline FVC was defined as the mean of the available pre-dose FVC values at the randomisation visit. Means are adjusted for treatment, period, patient and study baseline. FVC AUC 0-12h was calculated using the trapezoidal rule, divided by the observation time to report in litres.

    Measured: 1 hour (h) prior and 10 minutes (min) prior to first dose (baseline) and -1 h, -10 mins, 30 min, 60 min, 2 h, 3 h, 4 h, 6 h, 8 h, 10 h, 11 h 50 min related to morning dose after 3 weeks

  6. FVC Area Under Curve 12-24 Hours (AUC 12-24h) Response

    Response was defined as change from baseline. Study baseline FVC was defined as the mean of the available pre-dose FVC values at the randomisation visit. Means are adjusted for treatment, period, patient and study baseline. FVC AUC 12-24h was calculated using the trapezoidal rule, divided by the observation time to report in litres.

    Measured: 1 hour (h) prior and 10 minutes (min) prior to first dose (baseline) and 11 h 50 min, 12 h 30 min, 13 h, 14 h, 22 h, 23 h, and 23 h 50 min related to morning dose after 3 weeks

  7. FVC Area Under Curve 0-24 Hours (AUC 0-24h) Response

    Response was defined as change from baseline. Study baseline FVC was defined as the mean of the available pre-dose FVC values at the randomisation visit. Means are adjusted for treatment, period, patient and study baseline. FVC AUC 0-24h was calculated using the trapezoidal rule, divided by the observation time to report in litres.

    Measured: 1 hour (h) prior and 10 minutes (min) prior to first dose (baseline) and -1 h, -10 mins, 30 min, 60 min, 2 h, 3 h, 4 h, 6 h, 8h, 10 h, 11 h 50 min, 12 h 30 min, 13 h, 14 h, 22 h, 23 h, and 23 h 50 min related to morning dose after 3 weeks

  8. Peak FVC Within 24 Hours Post-dose Response

    Response was defined as change from baseline. Study baseline FVC was defined as the mean of the available pre-dose FVC values at the randomisation visit. Peak FVC within 24 hours post-dose measured following the morning trial drug inhalation at the end of each 3 week period of randomised treatment. Means are adjusted for treatment, period, patient and study baseline.

    Measured: 1 hour (h) prior and 10 minutes (min) prior to first dose (baseline) and 30 min, 60 min, 2 h, 3 h, 4 h, 6 h, 8h, 10 h, 11 h 50 min, 12 h 30 min, 13 h, 14 h, 22 h, 23 h, and 23 h 50 min related to morning dose after 3 weeks

  9. Trough FVC Response

    Response was defined as change from baseline. Study baseline FVC was defined as the mean of the available pre-dose FVC values at the randomisation visit. Trough values were defined as the mean of 2 FVC values performed at 23 h and 23 h 50 min after the last morning trial drug inhalation at the end of each 3 week period of randomised treatment. Means are adjusted for treatment, period, patient and study baseline.

    Measured: 1 hour (h) prior and 10 minutes (min) prior to first dose (baseline) and 23 h, and 23 h 50 min related to morning dose after 3 weeks

  10. Peak Expiratory Flow (PEF) Area Under Curve 0-12 Hours (AUC 0-12h) Response

    Response was defined as change from baseline. Study baseline PEF was defined as the mean of the available pre-dose PEF values at the randomisation visit. Means are adjusted for treatment, period, patient and study baseline. PEF AUC 0-12h was calculated using the trapezoidal rule, divided by the observation time to report in litres/seconds.

    Measured: 1 hour (h) prior and 10 minutes (min) prior to first dose (baseline) and -1 h, -10 mins, 30 min, 60 min, 2 h, 3 h, 4 h, 6 h, 8h, 10 h, 11 h 50 min related to morning dose after 3 weeks

  11. PEF Area Under Curve 12-24 Hours (AUC 12-24h) Response

    Response was defined as change from baseline. Study baseline PEF was defined as the mean of the available pre-dose PEF values at the randomisation visit. Means are adjusted for treatment, period, patient and study baseline. PEF AUC 12-24h was calculated using the trapezoidal rule, divided by the observation time to report in litres/seconds.

    Measured: 1 hour (h) prior and 10 minutes (min) prior to first dose (baseline) and 11 h 50 min, 12 h 30 min, 13 h, 14 h, 22 h, 23 h, and 23 h 50 min related to morning dose after 3 weeks

  12. Peak Expiratory Flow (PEF) Area Under Curve 0-24 Hours (AUC 0-24h) Response

    Response was defined as change from baseline. Study baseline PEF was defined as the mean of the available pre-dose PEF values at the randomisation visit. Means are adjusted for treatment, period, patient and study baseline. PEF AUC 0-24h was calculated using the trapezoidal rule, divided by the observation time to report in litres/seconds.

    Measured: 1 hour (h) prior and 10 minutes (min) prior to first dose (baseline) and -1 h, -10 mins, 30 min, 60 min, 2 h, 3 h, 4 h, 6 h, 8h, 10 h, 11 h 50 min, 12 h 30 min, 13 h, 14 h, 22 h, 23 h, and 23 h 50 min related to morning dose after 3 weeks

  13. Peak PEF Within 24 Hours Post-dose Response

    Response was defined as change from baseline. Study baseline PEF was defined as the mean of the available pre-dose PEF values at the randomisation visit. Peak PEF within 24 hours post dose measured following the morning trial drug inhalation at the end of each 3 week period of randomised treatment. Means are adjusted for treatment, period, patient and study baseline.

    Measured: 1 hour (h) prior and 10 minutes (min) prior to first dose (baseline) and 30 min, 60 min, 2 h, 3 h, 4 h, 6 h, 8h, 10 h, 11 h 50 min, 12 h 30 min, 13 h, 14 h, 22 h, 23 h, and 23 h 50 min related to morning dose after 3 weeks

  14. Trough PEF Response

    Response was defined as change from baseline. Study baseline PEF was defined as the mean of the available pre-dose PEF values at the randomisation visit. Trough values were defined as the mean of 2 PEF values performed at 23 h and 23 h 50 min after the last morning trial drug inhalation at the end of each 3 week period of randomised treatment. Means are adjusted for treatment, period, patient and study baseline.

    Measured: 1 hour (h) prior and 10 minutes (min) prior to first dose (baseline) and 23 h, and 23 h 50 min related to morning dose after 3 weeks

  15. Mean Pre-dose Morning PEF (PEF a.m.)

    PEF a.m. was measured by patients at home using the AM3 device (overall means obtained during each period of randomised treatment will be compared). Means are adjusted for treatment, period, patient and study baseline.

    Measured: 0-3 weeks

  16. Mean Pre-dose Evening PEF (PEF p.m.)

    PEF p.m. was measured by patients at home using the AM3 device (overall means obtained during each period of randomised treatment will be compared). Means are adjusted for treatment, period, patient and study baseline.

    Measured: 0-3 weeks

  17. PEF Daily Variability

    PEF daily variability was assessed by patients at home using the AM3 device (overall means obtained during each period of randomised treatment will be compared). PEF daily variability is the absolute difference between the morning and the evening PEF value divided by the mean of these two values, expressed as a percent. Means are adjusted for treatment, period, patient and study baseline.

    Measured: 0-3 weeks

  18. Mean Pre-dose Morning FEV1 (FEV1 a.m.)

    FEV1 a.m. was measured by patients at home using the AM3 device (overall means obtained during each period of randomised treatment will be compared). Means are adjusted for treatment, period, patient and study baseline.

    Measured: 0-3 weeks

  19. Mean Pre-dose Evening FEV1 (FEV1 p.m.)

    FEV1 p.m. was measured by patients at home using the AM3 device (overall means obtained during each period of randomised treatment will be compared). Means are adjusted for treatment, period, patient and study baseline.

    Measured: 0-3 weeks

  20. Mean Number of Puffs of Rescue Medication During the Whole Day

    Mean of daily use of salbutamol (albuterol) rescue medication as needed during the entire study period. Assessed by patients at home using the AM3 device (overall mean number obtained during each period of randomised treatment will be compared). Means are adjusted for treatment, period, patient and study baseline.

    Measured: 0-3 weeks

  21. Percentage of Asthma Symptom Free Days

    Percentage of asthma-symptom free days of each treatment period was calculated as the number of symptom-free days divided by the number of days on treatment multiplied by 100. A symptom-free day was defined as a day in which no asthma symptoms were recorded, no rescue medication was recorded, activities during the day were not at all limited due to asthma, no shortness of breath during the day was recorded, no wheezing or coughing during the day and no night-time awakenings due to asthma were recorded. Assessed by patients at home using the AM3 device.

    Measured: 0-3 weeks

  22. Number of Patients Categorized by Highest Number of Night Time Awakenings (Overall)

    Assessed by patients at home using the AM3 device during each period of randomised treatment.

    Measured: 0-3 weeks

  23. Number of Patients Categorized by Worst Asthma Daytime Symptoms (Overall)

    Assessed by patients at home using the AM3 device during each period of randomised treatment .

    Measured: 0-3 weeks

  24. Number of Patients Categorized by Worst Asthma Nighttime Symptoms (Overall)

    Assessed by patients at home using the AM3 device during each period of randomised treatment.

    Measured: 0-3 weeks

  25. Total Asthma Control Questionnaire (ACQ) Score

    Control of asthma as assessed by the ACQ at the end of each 3-week treatment period.The ACQ contains 7 questions, each question has a 7 point scale from 0 (no symptoms) till 6 (highest intensity). Total score was defined as the sum of all items divided by the number of items.

    Measured: 3 weeks

  26. Clinical Relevant Abnormalities for Vital Signs, Blood Chemistry, Haematology, Urinalysis and ECG

    Clinical relevant abnormalities for Vital Signs, Blood Chemistry, Haematology, Urinalysis and ECG. New abnormal findings or worsening of baseline conditions were reported as Adverse Events. Time frame for adverse event reporting includes 12 days into the subsequent washout or post-treatment period.

    Measured: 3 weeks + 12 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Mar 2011 (estimated)
  2. Study startMar 2011
  3. Primary completionDec 2011

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Double blind
Enrolment
206 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01311661
Sponsor's protocol ID
1222.29
Other IDs
2008-006625-14, 2008
Status last verified
Mar 2014
First submitted
4 Mar 2011
Last updated
1 May 2014

Publications

  • Beeh KM, LaForce C, Gahlemann M, Wenz A, Toorawa R, Flezar M. Randomised, double-blind, placebo-controlled crossover study to investigate different dosing regimens of olodaterol delivered via Respimat(R) in patients with moderate to severe persistent asthma. Respir Res. 2015 Jul 16;16(1):87. doi: 10.1186/s12931-015-0243-1.

    PubMed 26177937

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Olodaterol low daily dose twice daily and Olodaterol medium daily dose twice daily in people with Asthma, run by Boehringer Ingelheim at 36 sites in 6 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 1 May 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 36 sites in United States, Germany, Austria, Hungary, Slovakia and 1 more country. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 1 May 2014). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Forced Expiratory Volume in 1 Second (FEV1) Area Under Curve 0-24 Hours (AUC 0-24h) Response at the End of Each Treatment Period (time frame: 1 hour (h) prior and 10 minutes (min) prior to first dose (baseline) and -1 h, -10 mins, 30 min, 60 min, 2 h, 3 h, 4 h, 6 h, 8 h, 10 h, 11 h 50 min, 12 h 30 min, 13 h, 14 h, 22 h, 23 h, and 23 h 50 min related to morning dose after 3 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01311661, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 May 2014.

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