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AsthmaPhase 2NCT00467740

Efficacy and Safety of 4 Weeks of Treatment With Inhaled BI 1744 CL in Patients With Asthma

A Phase 2 study testing BI 1744 CL in people with Asthma, run by Boehringer Ingelheim at 37 sites in 4 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

The primary objective of this study is to determine the optimum dose(s) of BI 1744 CL inhalation solution delivered by the Respimat® inhaler for four weeks in patients with asthma. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Asthma
What is being tested?
BI 1744 CL
How many people
296 participants
Where
37 sitesin 4 countries
Study dates
May 2007to Oct 2008
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • All patients must sign an informed consent consistent with ICH-GCP guidelines prior to participation in the trial, which includes medication washout and restrictions
  • Male or female patients, 18 years of age or older
  • Diagnosis of asthma (GINA)
  • Pre-bronchodilator FEV1 greater than or equal to 60% predicted and <90% predicted (ECSC);
  • Increase in FEV1 greater than or equal to 12% and 200 ml 15 minutes after 400µg salbutamol (albuterol) at Visit 1
  • Patient must have been taking Inhaled Corticosteroids for at least 12 weeks prior to screening, and must have been receiving a stable low/moderate dose for at least 6 weeks prior to screening.
  • Patients must be able to perform technically acceptable pulmonary function tests and PEF measurements, and must be able to maintain records (Patient Daily e-Diary) during the study period as required in the protocol
  • Patients must be able to inhale medication in a competent manner from the Respimat® inhaler and from a metered dose inhaler (MDI).

Who cannot join

  • Patients with a smoking history of more than 10 pack years
  • Patients with any of the following conditions: a diagnosis of thyrotoxicosis, a diagnosis of paroxysmal tachycardia (>100 beats per minute), a marked baseline prolongation of QT/QTc interval (e.g., repeated demonstration of a QTc interval >450 ms), a history of additional risk factors for Torsade de Pointes (TdP) (e.g., heart failure, hypokalemia, family history of Long QT Syndrome)
  • Patients with any of the following conditions: a history of myocardial infarction within 1 year of screening visit (Visit 1), a diagnosis of clinically relevant cardiac arrhythmia, a history of cor pulmonale, known active tuberculosis, a malignancy for which patient has undergone resection, radiation therapy or chemotherapy within last five years (patients with treated basal cell carcinoma are allowed), a history of life-threatening pulmonary obstruction, a history of cystic fibrosis, clinically evident bronchiectasis, a history of significant alcohol or drug abuse
  • Patients who have undergone thoracotomy with pulmonary resection
  • Patients who have taken an investigational drug within one month or six half lives (whichever is greater) prior to Screening Visit (Visit 1)
  • Pregnant or nursing women
Show all 9Show fewer
  • Women of childbearing potential not using a highly effective method of birth control. Female patients will be considered to be of childbearing potential unless surgically sterilised by hysterectomy or bilateral tubal ligation, or post-menopausal for at least 2 years
  • Patients who have previously been randomized in this study or are currently participating in another study
  • Patients who are unable to comply with pulmonary medication restrictions prior to randomization

Trial locations and contacts

37 sites in 4 countries.

37 sites in 4 countries

Canada14 sites
  • 1222.6.017 Boehringer Ingelheim Investigational Site

    Calgary, Alberta

  • 1222.6.011 Boehringer Ingelheim Investigational Site

    Hamilton, Ontario

  • 1222.6.003 Boehringer Ingelheim Investigational Site

    Mississauga, Ontario

  • 1222.6.008 Boehringer Ingelheim Investigational Site

    Montreal, Quebec

  • 1222.6.015 Boehringer Ingelheim Investigational Site

    Montreal, Quebec

  • 1222.6.013 Boehringer Ingelheim Investigational Site

    Ottawa, Ontario

  • 1222.6.004 Boehringer Ingelheim Investigational Site

    Saskatoon, Saskatchewan

  • 1222.6.007 Boehringer Ingelheim Investigational Site

    Sherbrooke, Quebec

  • 1222.6.002 Boehringer Ingelheim Investigational Site

    Ste-Foy, Quebec

  • 1222.6.005 Boehringer Ingelheim Investigational Site

    Toronto, Ontario

  • 1222.6.009 Boehringer Ingelheim Investigational Site

    Toronto, Ontario

  • 1222.6.006 Boehringer Ingelheim Investigational Site

    Vancouver, British Columbia

  • 1222.6.012 Boehringer Ingelheim Investigational Site

    Winnipeg, Manitoba

  • 1222.6.016 Boehringer Ingelheim Investigational Site

    Winnipeg, Manitoba

Other trials in Canada

United States10 sites
  • 1222.6.068 National Jewish Medical Center

    Denver, Colorado

  • 1222.6.072 Boehringer Ingelheim Investigational Site

    Kileen, Texas

  • 1222.6.064 Arthur F. Gelb Medical Corporation, Lakewood

    Lakewood, California

  • 1222.6.062 Boehringer Ingelheim Investigational Site

    Los Angeles, California

  • 1222.6.067 Northeast Medical Research Associates, Inc

    North Darthmouth, Massachusetts

  • 1222.6.066 Allergy & Asthma Medical Group and Rsrch Ctr, APC

    San Diego, California

  • 1222.6.069 Allergy Associates Medical Group

    San Diego, California

  • 1222.6.071 Pulmonary Consultants

    Tacoma, Washington

  • 1222.6.073 Boehringer Ingelheim Investigational Site

    Wheat Ridge, Colorado

  • 1222.6.061 Center for Human Genomics

    Winston-Salem, North Carolina

Other trials in United States

France7 sites
  • 1222.6.3303A Boehringer Ingelheim Investigational Site

    Béthune

  • 1222.6.3308A Boehringer Ingelheim Investigational Site

    Briançon

  • 1222.6.3302A Boehringer Ingelheim Investigational Site

    Grenoble

  • 1222.6.3306A Boehringer Ingelheim Investigational Site

    Lille

  • 1222.6.3301A Boehringer Ingelheim Investigational Site

    Montpellier

  • 1222.6.3304A Boehringer Ingelheim Investigational Site

    Nîmes

  • 1222.6.3305A Boehringer Ingelheim Investigational Site

    Saint-Pierre Cedex - La Réunion

Other trials in France

Germany6 sites
  • 1222.6.031 Boehringer Ingelheim Investigational Site

    Berlin

  • 1222.6.034 Boehringer Ingelheim Investigational Site

    Berlin

  • 1222.6.037 Boehringer Ingelheim Investigational Site

    Gauting

  • 1222.6.038 Boehringer Ingelheim Investigational Site

    Hamburg

  • 1222.6.032 Boehringer Ingelheim Investigational Site

    Rüdersdorf

  • 1222.6.036 Boehringer Ingelheim Investigational Site

    Wiesloch

Other trials in Germany

About this study

Official title: Randomised, Double-Blind, Placebo-Controlled, Parallel Group Study to Assess the Efficacy (Bronchodilation) and Safety of 4 Weeks of Treatment of Orally Inhaled BI 1744 CL (4 Doses) Delivered by the Respimat® Inhaler in Patients With Asthma

The primary objective of this study is to determine the optimum dose(s) of BI 1744 CL inhalation solution delivered by the Respimat® inhaler for four weeks in patients with asthma. The selection of the optimum dose(s) will be based on bronchodilator efficacy (how well it helps your breathing), safety evaluations and pharmacokinetic evaluations (the amount of the medication found in your blood).

Conditions
Asthma
Being tested
BI 1744 CL
Medical subject headings
Asthma

What participants receive

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

  • BI 1744 CLDrug

What is being measured

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

  1. Trough FEV1 Response After 4 Weeks

    Response was defined as change from baseline. Baseline trough FEV1 was defined as the mean of the -1 hour and -10 minute measurements performed just prior to first dose of randomized treatment. Trough FEV1 is defined as the FEV1 performed at -10 mins prior to study drug inhalation at the end of the dosing interval.

    Measured: Baseline and 4 weeks

Secondary outcomes (35)
  1. Weekly Mean Pre-dose Morning PEFR After 4 Weeks

    Response was defined as change from baseline. Baseline peak expiratory flow response (PEFR) was defined as the mean of the morning PEFR measurements obtained during the week just prior to first dose of randomized treatment.

    Measured: Baseline and 4 weeks

  2. Trough FEV1 Response After 1 Week

    Response was defined as change from baseline. Baseline trough FEV1 was defined as the mean of the -1 hour and -10 minute measurements performed just prior to first dose of randomized treatment. Trough FEV1 is defined as the FEV1 performed at -10 mins prior to study drug inhalation at the end of the dosing interval.

    Measured: Baseline and 1 week

  3. Trough FEV1 Response After 2 Weeks

    Response was defined as change from baseline. Baseline trough FEV1 was defined as the mean of the -1 hour and -10 minute measurements performed just prior to first dose of randomized treatment. Trough FEV1 is defined as the FEV1 performed at -10 mins prior to study drug inhalation at the end of the dosing interval.

    Measured: Baseline and 2 weeks

  4. Trough FVC Response After 1 Week

    Response was defined as change from baseline. Baseline trough FVC was defined as the mean of the -1 hour and -10 minute measurements performed just prior to first dose of randomized treatment. Trough FVC is defined as the FVC performed at -10 mins prior to study drug inhalation at the end of the dosing interval.

    Measured: Baseline and 1 week

  5. Trough FVC Response After 2 Weeks

    Response was defined as change from baseline. Baseline trough FVC was defined as the mean of the -1 hour and -10 minute measurements performed just prior to first dose of randomized treatment. Trough FVC is defined as the FVC performed at -10 mins prior to study drug inhalation at the end of the dosing interval.

    Measured: Baseline and 2 weeks

  6. Trough FVC Response After 4 Weeks

    Response was defined as change from baseline. Baseline trough FVC was defined as the mean of the -1 hour and -10 minute measurements performed just prior to first dose of randomized treatment. Trough FVC is defined as the FVC performed at -10 mins prior to study drug inhalation at the end of the dosing interval.

    Measured: Baseline and 4 weeks

  7. Forced Expiratory Volume in 1 Second (FEV1) Area Under Curve 0-6 h (AUC 0-6h) Response at Week 4

    Response was defined as change from baseline. Study baseline FEV1 was defined as the mean of the available pre-dose FEV1 values prior to the first dose of randomized treatment. FEV1 AUC 0-6h was calculated from 0-6 hours post-dose using the trapezoidal rule, divided by the observation time (6h) to report in litres.

    Measured: 1 hour (h) and 10 minutes (min) prior to dose on first day of randomized treatment (baseline) and 30 min, 1h, 2h, 3h, 4h, 5h, 6h relative to dose at Week 4

  8. Forced Vital Capacity (FVC) Area Under Curve 0-6 h (AUC 0-6h) Response at Week 4

    Response was defined as change from baseline. Study baseline FVC was defined as the mean of the available pre-dose FVC values prior to the first dose of randomized treatment. FVC AUC 0-6h was calculated from 0-6 hours post-dose using the trapezoidal rule, divided by the observation time (6h) to report in litres.

    Measured: 1 hour (h) and 10 minutes (min) prior to dose on first day of randomized treatment (baseline) and 30 min, 1h, 2h, 3h, 4h, 5h, 6h relative to dose at Week 4

  9. Forced Expiratory Volume in 1 Second (FEV1) Area Under Curve 0-3 h (AUC 0-3h) Response at Day 1

    Response was defined as change from baseline. Study baseline FEV1 was defined as the mean of the available pre-dose FEV1 values prior to the first dose of randomized treatment. FEV1 AUC 0-3h was calculated from 0-3 hours post-dose using the trapezoidal rule, divided by the observation time (3h) to report in litres.

    Measured: 1 hour (h) and 10 minutes (min) prior to dose on first day of randomized treatment (baseline) and 30 min, 1h, 2h, 3h relative to dose at Day 1

  10. Forced Expiratory Volume in 1 Second (FEV1) Area Under Curve 0-3 h (AUC 0-3h) Response at Week 1

    Response was defined as change from baseline. Study baseline FEV1 was defined as the mean of the available pre-dose FEV1 values prior to the first dose of randomized treatment. FEV1 AUC 0-3h was calculated from 0-3 hours post-dose using the trapezoidal rule, divided by the observation time (3h) to report in litres.

    Measured: 1 hour (h) and 10 minutes (min) prior to dose on first day of randomized treatment (baseline) and 30 min, 1h, 2h, 3h relative to dose at Week 1

  11. Forced Expiratory Volume in 1 Second (FEV1) Area Under Curve 0-3 h (AUC 0-3h) Response at Week 2

    Response was defined as change from baseline. Study baseline FEV1 was defined as the mean of the available pre-dose FEV1 values prior to the first dose of randomized treatment. FEV1 AUC 0-3h was calculated from 0-3 hours post-dose using the trapezoidal rule, divided by the observation time (3h) to report in litres.

    Measured: 1 hour (h) and 10 minutes (min) prior to dose on first day of randomized treatment (baseline) and 30 min, 1h, 2h, 3h relative to dose at Week 2

  12. Forced Expiratory Volume in 1 Second (FEV1) Area Under Curve 0-3 h (AUC 0-3h) Response at Week 4

    Response was defined as change from baseline. Study baseline FEV1 was defined as the mean of the available pre-dose FEV1 values prior to the first dose of randomized treatment. FEV1 AUC 0-3h was calculated from 0-3 hours post-dose using the trapezoidal rule, divided by the observation time (3h) to report in litres.

    Measured: 1 hour (h) and 10 minutes (min) prior to dose on first day of randomized treatment (baseline) and 30 min, 1h, 2h, 3h relative to dose at Week 4

  13. Peak FEV1 (0-3h) Response At Day 1

    Response was defined as change from baseline. Study baseline FEV1 was defined as the mean of the available pre-dose FEV1 values prior to the first dose of randomized treatment. Peak FEV1 (0-3h) values were obtained within 0 - 3 hours after treatment.

    Measured: 1 hour (h) and 10 minutes (min) prior to dose on the first day of randomized treatment (baseline) to 30 min, 1 h, 2 h, and 3 h relative to dose at day 1

  14. Peak FEV1 (0-3h) Response After 1 Week

    Response was defined as change from baseline. Study baseline FEV1 was defined as the mean of the available pre-dose FEV1 values prior to the first dose of randomized treatment. Peak FEV1 (0-3h) values were obtained within 0 - 3 hours after treatment.

    Measured: 1 hour (h) and 10 minutes (min) prior to dose on the first day of randomized treatment (baseline) to 30 min, 1 h, 2 h, and 3 h relative to dose after 1 week

  15. Peak FEV1 (0-3h) Response After 2 Weeks

    Response was defined as change from baseline. Study baseline FEV1 was defined as the mean of the available pre-dose FEV1 values prior to the first dose of randomized treatment. Peak FEV1 (0-3h) values were obtained within 0 - 3 hours after treatment.

    Measured: 1 hour (h) and 10 minutes (min) prior to dose on the first day of randomized treatment (baseline) to 30 min, 1 h, 2 h, and 3 h relative to dose after 2 weeks

  16. Peak FEV1 (0-3h) Response After 4 Weeks

    Response was defined as change from baseline. Study baseline FEV1 was defined as the mean of the available pre-dose FEV1 values prior to the first dose of randomized treatment. Peak FEV1 (0-3h) values were obtained within 0 - 3 hours after treatment.

    Measured: 1 hour (h) and 10 minutes (min) prior to dose on the first day of randomized treatment (baseline) to 30 min, 1 h, 2 h, and 3 h relative to dose after 4 weeks

  17. Peak FVC (0-3h) Response At Day 1

    Response was defined as change from baseline. Study baseline FEV1 was defined as the mean of the available pre-dose FVC values prior to the first dose of randomized treatment. Peak FVC (0-3h) values were obtained within 0 - 3 hours after treatment.

    Measured: 1 hour (h) and 10 minutes (min) prior to dose on the first day of randomized treatment (baseline) to 30 min, 1 h, 2 h, and 3 h relative to dose after 1 weeks

  18. Peak FVC (0-3h) Response After 1 Week

    Response was defined as change from baseline. Study baseline FEV1 was defined as the mean of the available pre-dose FVC values prior to the first dose of randomized treatment. Peak FVC (0-3h) values were obtained within 0 - 3 hours after treatment.

    Measured: 1 hour (h) and 10 minutes (min) prior to dose on the first day of randomized treatment (baseline) to 30 min, 1 h, 2 h, and 3 h relative to dose after 1 weeks

  19. Peak FVC (0-3h) Response After 2 Weeks

    Response was defined as change from baseline. Study baseline FEV1 was defined as the mean of the available pre-dose FVC values prior to the first dose of randomized treatment. Peak FVC (0-3h) values were obtained within 0 - 3 hours after treatment.

    Measured: 1 hour (h) and 10 minutes (min) prior to dose on the first day of randomized treatment (baseline) to 30 min, 1 h, 2 h, and 3 h relative to dose after 2 weeks

  20. Peak FVC (0-3h) Response After 4 Weeks

    Response was defined as change from baseline. Study baseline FEV1 was defined as the mean of the available pre-dose FVC values prior to the first dose of randomized treatment. Peak FVC (0-3h) values were obtained within 0 - 3 hours after treatment.

    Measured: 1 hour (h) and 10 minutes (min) prior to dose on the first day of randomized treatment (baseline) to 30 min, 1 h, 2 h, and 3 h relative to dose after 4 weeks

  21. Forced Expiratory Volume in 1 Second (FEV1) Area Under Curve 6-12 h (AUC 6-12h) Response at Week 4

    Response was defined as change from baseline. Study baseline FEV1 was defined as the mean of the available pre-dose FEV1 values prior to the first dose of randomized treatment. FEV1 AUC 6-12h was calculated from 6-12 hours post-dose using the trapezoidal rule, divided by the observation time (12h) to report in litres.

    Measured: 1 hour (h) prior to dose on first day of randomized treatment (baseline) and 1h, 3h, 6h, 9h, 12h relative to dose at Week 4

  22. Weekly Mean Evening PEFR After 4 Weeks

    Response was defined as change from baseline. Baseline PEFR was defined as the mean of the evening PEFR measurements obtained during the week just prior to first dose of randomized treatment.

    Measured: Baseline and 4 weeks

  23. PEFR Variability After 4 Weeks

    PEFR variability represents the absolute difference between the highest morning PEFR value and the highest evening PEFR value of 1 day, divided by the arithmetic mean of these 2 PEFR values and expressed as a percent, weekly means.

    Measured: 4 weeks

  24. Weekly Mean Number of Occasions of Rescue Therapy After 4 Weeks

    Weekly mean number of occasions of rescue therapy used per day (prn salbutamol [albuterol]) as assessed by the e-Diary (e-Diary incorporated in AM2+).

    Measured: 4 weeks

  25. Area Under Curve From 0 to 3 Hours (AUC0-3)

    AUC0-3 represents the area under the concentration curve of olodaterol and olodaterol glucuronide (a metabolite of olodaterol) in plasma from 0 to time t=3

    Measured: 30 minutes (mins) before drug administration and 5mins, 10mins, 20mins, 40mins, 1 hour (h) and 3h after drug administration

  26. Maximum Concentration (Cmax)

    Cmax represents the maximum concentration of olodaterol and olodaterol glucuronide (a metabolite of olodaterol) in plasma.

    Measured: 30 minutes (mins) before drug administration and 5mins, 10mins, 20mins, 40mins, 1 hour (h) and 3h after drug administration

  27. Time From Dosing to the Maximum Concentration (Tmax)

    tmax represents the time from dosing to maximum concentration of olodaterol and olodaterol glucuronide (a metabolite of olodaterol) in plasma.

    Measured: 30 minutes (mins) before drug administration and 5mins, 10mins, 20mins, 40mins, 1 hour (h) and 3h after drug administration

  28. Area Under Curve From 0 to 3 Hours at Steady State (AUC0-3,ss)

    AUC0-3,ss represents the area under the concentration curve of olodaterol and olodaterol glucuronide (a metabolite of olodaterol) in plasma from 0 to time t=3 at steady state.

    Measured: 30 minutes (mins) before drug administration and 5mins, 10mins, 20mins, 40mins, 1 hour (h), 3h and 6h after drug administration

  29. Area Under Curve From 0 to 6 Hours at Steady State (AUC0-6,ss)

    AUC0-6,ss represents the area under the concentration curve of olodaterol and olodaterol glucuronide (a metabolite of olodaterol) in plasma from 0 to time t=6 at steady state.

    Measured: 30 minutes (mins) before drug administration and 5mins, 10mins, 20mins, 40mins, 1 hour (h), 3h and 6h after drug administration

  30. Area Under Curve From 0 to 24 Hours at Steady State (AUC0-24,ss)

    AUC0-24,ss represents the area under the concentration curve of olodaterol and olodaterol glucuronide (a metabolite of olodaterol) in plasma from 0 to time t=24 at steady state.

    Measured: 30 minutes (mins) before drug administration and 5mins, 10mins, 20mins, 40mins, 1 hour (h), 3h and 6h after drug administration

  31. Maximum Concentration at Steady State (Cmax,ss)

    Cmax,ss represents the maximum concentration of olodaterol and olodaterol glucuronide (a metabolite of olodaterol) in plasma at steady state.

    Measured: 30 minutes (mins) before drug administration and 5mins, 10mins, 20mins, 40mins, 1 hour (h), 3h and 6h after drug administration

  32. Time From Dosing to the Maximum Concentration at Steady State (Tmax,ss)

    tmax,ss represents the time from dosing to maximum concentration of olodaterol and olodaterol glucuronide (a metabolite of olodaterol) in plasma at steady state.

    Measured: 30 minutes (mins) before drug administration and 5mins, 10mins, 20mins, 40mins, 1 hour (h), 3h and 6h after drug administration

  33. Total Score in Asthma Control Questionnaire After 4 Weeks

    Adequacy of asthma control was assessed using a scale of: 0=totally controlled, to 6=Severely uncontrolled.

    Measured: 4 weeks

  34. Clinical Relevant Abnormalities for Vital Signs, ECG and Physical Examination

    Clinical relevant abnormalities for vital signs, ECG and physical examination. Any new or clinically relevant worsening of baseline conditions was reported as adverse events.

    Measured: 4 weeks

  35. Laboratory Testing: Average Change From Baseline of Potassium

    Laboratory testing: Average change from baseline of potassium measured on test-days. Pre-dose value on test day 1 is the baseline value.

    Measured: Baseline and 29 days

Timeline

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

  1. First posted1 May 2007 (estimated)
  2. Study startMay 2007
  3. Primary completionOct 2008

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
Intervention model
Parallel groups
Enrolment
296 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00467740
Sponsor's protocol ID
1222.6
Other IDs
EUDRACT 2006-004829-29
Status last verified
Jun 2014
First submitted
30 Apr 2007
Last updated
27 Jun 2014

Publications

  • O'Byrne PM, D'Urzo T, Beck E, Flezar M, Gahlemann M, Hart L, Blahova Z, Toorawa R, Beeh KM. Dose-finding evaluation of once-daily treatment with olodaterol, a novel long-acting beta2-agonist, in patients with asthma: results of a parallel-group study and a crossover study. Respir Res. 2015 Aug 18;16(1):97. doi: 10.1186/s12931-015-0249-8.

    PubMed 26283085

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing BI 1744 CL in people with Asthma, run by Boehringer Ingelheim at 37 sites in 4 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 8 inclusion and 9 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 27 Jun 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 37 sites in Canada, United States, France, Germany. 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 11 Jun 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?

Trough FEV1 Response After 4 Weeks (time frame: Baseline and 4 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 NCT00467740, 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 27 Jun 2014.

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