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Pulmonary Disease, Chronic ObstructivePhase 2NCT00452400

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

A Phase 2 study testing BI 1744CL in people with Pulmonary Disease, Chronic Obstructive and Asthma, run by Boehringer Ingelheim at 42 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 chronic obstructive pulmonary disease (COPD). Read more about this study

Who is it for?
Ages 40 years and older
What is being tested?
BI 1744CL
How many people
409 participants
Where
42 sitesin 4 countries
Study dates
Mar 2007to Jan 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 40 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
  • All patients must have a diagnosis of chronic obstructive pulmonary disease and must meet the following spirometric criteria:
  • Patients must have relatively stable, moderate to severe airway obstruction with a post-bronchodilator FEV1 \&#61619; 30% of predicted normal and < 80% of predicted normal and a post-bronchodilator FEV1 / FVC < 70% at Visit 1
  • Male or female patients, 40 years of age or older
  • Patients must be current or ex-smokers with a smoking history of more than 10 pack years. Patients who have never smoked cigarettes must be excluded
  • Patients must be able to perform technically acceptable pulmonary function tests and PEFR 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

  • Selection of relevant exclusion criteria:
  • Patients with a history of asthma or a total blood eosinophil count 600/mm3.
  • 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).
Show all 24Show fewer
  • 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
  • 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 regularly use daytime oxygen therapy for more than one hour per day and in the investigator's opinion will be unable to abstain from the use of oxygen therapy during clinic visits
  • Patients who have completed a pulmonary rehabilitation program in the six weeks prior to the Screening Visit (Visit 1) or patients who are currently in a pulmonary rehabilitation program
  • 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
  • Women of childbearing potential not using a highly effective method of birth control
  • Patients who have previously been randomized in this study or are currently participating in another study
  • Patients who are unable to comply with medication restrictions.

Trial locations and contacts

42 sites in 4 countries.

42 sites in 4 countries

United States22 sites
  • 1222.5.03 Boehringer Ingelheim Investigational Site

    Birmingham, Alabama

  • 1222.5.08 Boehringer Ingelheim Investigational Site

    Charleston, South Carolina

  • 1222.5.19 Boehringer Ingelheim Investigational Site

    Charleston, South Carolina

  • 1222.5.04 Boehringer Ingelheim Investigational Site

    Coeur d'Alene, Idaho

  • 1222.5.14 Boehringer Ingelheim Investigational Site

    Denver, Colorado

  • 1222.5.05 Boehringer Ingelheim Investigational Site

    Hershey, Pennsylvania

  • 1222.5.21 Boehringer Ingelheim Investigational Site

    Kileen, Texas

  • 1222.5.07 Boehringer Ingelheim Investigational Site

    Lakewood, California

  • 1222.5.10 Boehringer Ingelheim Investigational Site

    Medford, Oregon

  • 1222.5.24 Boehringer Ingelheim Investigational Site

    New York, New York

  • 1222.5.15 Boehringer Ingelheim Investigational Site

    Panama City, Florida

  • 1222.5.02 Boehringer Ingelheim Investigational Site

    Philadelphia, Pennsylvania

  • 1222.5.12 Boehringer Ingelheim Investigational Site

    Raleigh, North Carolina

  • 1222.5.11 Boehringer Ingelheim Investigational Site

    Reno, Nevada

  • 1222.5.23 Boehringer Ingelheim Investigational Site

    Richmond, Virginia

  • 1222.5.01 Boehringer Ingelheim Investigational Site

    San Antonio, Texas

  • 1222.5.22 Boehringer Ingelheim Investigational Site

    Shreveport, Louisiana

  • 1222.5.06 Boehringer Ingelheim Investigational Site

    Spartanburg, South Carolina

  • 1222.5.18 Boehringer Ingelheim Investigational Site

    Stamford, Connecticut

  • 1222.5.20 Boehringer Ingelheim Investigational Site

    Tacoma, Washington

  • 1222.5.13 Boehringer Ingelheim Investigational Site

    Wheat Ridge, Colorado

  • 1222.5.17 Boehringer Ingelheim Investigational Site

    Wheat Ridge, Colorado

Other trials in United States

Canada10 sites
  • 1222.5.038 Courtice Health Centre

    Courtice, Ontario

  • 1222.5.032 Division of Respirology

    Halifax, Nova Scotia

  • 1222.5.037 Kingston General Hospital

    Kingston, Ontario

  • 1222.5.031 Alpha Medical Research Inc.

    Mississauga, Ontario

  • 1222.5.036 Department of Respiratory Medicine

    Saskatoon, Saskatchewan

  • 1222.5.033 Centre de Recherche Clinique -CHUS

    Sherbrooke, Quebec

  • 1222.5.035 Hopital Laval

    Ste-Foy, Quebec

  • 1222.5.034 Pulmonary Care Clinic and Research Centre

    Toronto, Ontario

  • 1222.5.040 Respiratory Research Lab

    Toronto, Ontario

  • 1222.5.039 St. Boniface General Hospital & Health Science Centre

    Winnipeg, Manitoba

Other trials in Canada

Germany6 sites
  • 1222.5.046 Boehringer Ingelheim Investigational Site

    Berlin

  • 1222.5.049 Boehringer Ingelheim Investigational Site

    Berlin

  • 1222.5.052 Boehringer Ingelheim Investigational Site

    Gauting

  • 1222.5.051 Boehringer Ingelheim Investigational Site

    Großhansdorf

  • 1222.5.047 Boehringer Ingelheim Investigational Site

    Rüdersdorf

  • 1222.5.048 Boehringer Ingelheim Investigational Site

    Wiesbaden

Other trials in Germany

Netherlands4 sites
  • 1222.5.058 Boehringer Ingelheim Investigational Site

    Almelo

  • 1222.5.056 Boehringer Ingelheim Investigational Site

    Breda

  • 1222.5.059 Boehringer Ingelheim Investigational Site

    Eindhoven

  • 1222.5.057 Boehringer Ingelheim Investigational Site

    Heerlen

Other trials in Netherlands

About this study

Official title: Randomised, Double-Blind, Placebo-Controlled, Parallel Group Study to Assess the Efficacy and Safety of 4 Weeks of Treatment of Orally Inhaled BI 1744 CL (3 - 4 Doses) Delivered by the Respimat® Inhaler in Patients With COPD

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 chronic obstructive pulmonary disease (COPD). 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).

Being tested
BI 1744CL
Medical subject headings
Pulmonary Disease, Chronic Obstructive, Asthma

What participants receive

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

  • BI 1744CLDrug

What is being measured

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

  1. Trough FEV1 Response After 4 Weeks

    Trough FEV1 is defined as the mean of the two FEV1 values (performed at -1 hour and -10 minutes prior to test-drug inhalation) at the end of the dosing interval, 24 hours post-drug administration. Trough FEV1 response is defined as the change from baseline in trough FEV1. Baseline FEV1 is the mean of the two pre-treatment FEV1 values measured at Visit 2 (- 1 hour and - 10 minutes) prior to administration of the first dose of study medication.

    Measured: Baseline and 4 weeks

Secondary outcomes (32)
  1. Trough FEV1 Response After 1 Week

    Trough FEV1 is defined as the mean of the two FEV1 values (performed at -1 hour and -10 minutes prior to test-drug inhalation) at the end of the dosing interval, 24 hours post-drug administration. Trough FEV1 response is defined as the change from baseline in trough FEV1. Baseline FEV1 is the mean of the two pre-treatment FEV1 values measured at Visit 2 (- 1 hour and - 10 minutes) prior to administration of the first dose of study medication.

    Measured: Baseline and 1 week

  2. Trough FEV1 Response After 2 Weeks

    Trough FEV1 is defined as the mean of the two FEV1 values (performed at -1 hour and -10 minutes prior to test-drug inhalation) at the end of the dosing interval, 24 hours post-drug administration. Trough FEV1 response is defined as the change from baseline in trough FEV1. Baseline FEV1 is the mean of the two pre-treatment FEV1 values measured at Visit 2 (- 1 hour and - 10 minutes) prior to administration of the first dose of study medication.

    Measured: Baseline and 2 weeks

  3. Trough FVC Response After 1 Week

    Trough FVC was defined as the mean of the two values obtained at 1 hour and 10 minutes prior to the pulmonary function test maneuver. Response is defined as change from the baseline value. Study baseline FVC was defined as the mean of the available pre-dose FVC values prior to the first dose of randomized treatment.

    Measured: Baseline and 1 week

  4. Trough FVC Response After 2 Weeks

    Trough FVC was defined as the mean of the two values obtained at 1 hour and 10 minutes prior to the pulmonary function test maneuver. Response is defined as change from the baseline value. Study baseline FVC was defined as the mean of the available pre-dose FVC values prior to the first dose of randomized treatment.

    Measured: Baseline and 2 weeks

  5. Trough FVC Response After 4 Weeks

    Trough FVC was defined as the mean of the two values obtained at 1 hour and 10 minutes prior to the pulmonary function test maneuver. Response is defined as change from the baseline value. Study baseline FVC was defined as the mean of the available pre-dose FVC values prior to the first dose of randomized treatment.

    Measured: Baseline and 4 weeks

  6. 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. Means are adjusted using a model with treatment (trt), baseline as fixed effects and centre as random effect. 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

  7. 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. Means are adjusted using a mixed effects model with baseline, treatment and centre (centre random, all other effects fixed).

    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

  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. Means are adjusted using a model with treatment (trt), baseline as fixed effects and centre as random effect. 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. Peak FVC (0-3h) Response After 4 Weeks

    Peak (0-3h) will be the maximum post-dose value during the first 3 hours. Response is defined as change from the baseline value. Study baseline FVC was defined as the mean of the available pre-dose FVC values prior to the first dose of randomized 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

  10. 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. Means are adjusted using a model with treatment (trt), baseline as fixed effects and centre as random effect. FEV1 AUC 0-3h was calculated from 0-3 hours postdose 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

  11. 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. Means are adjusted using a model with treatment (trt), baseline as fixed effects and centre as random effect. 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

  12. 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. Means are adjusted using a model with treatment (trt), baseline as fixed effects and centre as random effect. 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

  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.Means are adjusted using a mixed effects model with baseline,treatment and centre (centre random, all other effects fixed).

    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 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. Means are adjusted using a mixed effects model with baseline, treatment and centre (centre random, all other effects fixed).

    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. Means are adjusted using a mixed effects model with baseline, treatment and centre (centre random, all other effects fixed).

    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. Forced Expiratory Volume in 1 Second (FEV1) (Unsupervised) Area Under Curve 6-12 h (AUC 6-12h) 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. Means are adjusted using a model with treatment (trt), baseline as fixed effects and centre as random effect. FEV1 AUC 6-12h was calculated from 6-12 hours post-dose using the trapezoidal rule, divided by the observation time (6h) to report in litres.

    Measured: baseline and day1

  17. Forced Expiratory Volume in 1 Second (FEV1) (Unsupervised) Area Under Curve 6-12 h (AUC 6-12h) 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. Means are adjusted using a model with treatment (trt), baseline as fixed effects and centre as random effect. FEV1 AUC 6-12h was calculated from 6-12 hours post-dose using the trapezoidal rule, divided by the observation time (6h) to report in litres.

    Measured: Baseline and 1 week

  18. Forced Expiratory Volume in 1 Second (FEV1) (Unsupervised) Area Under Curve 6-12 h (AUC 6-12h) 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. Means are adjusted using a model with treatment (trt), baseline as fixed effects and centre as random effect. FEV1 AUC 6-12h was calculated from 6-12 hours post-dose using the trapezoidal rule, divided by the observation time (6h) to report in litres.

    Measured: Baseline and 2 weeks

  19. Forced Expiratory Volume in 1 Second (FEV1) (Unsupervised) Area Under Curve 6-12 h (AUC 6-12h) 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. Means are adjusted using a model with treatment (trt), baseline as fixed effects and centre as random effect. FEV1 AUC 6-12h was calculated from 6-12 hours post-dose using the trapezoidal rule, divided by the observation time (6h) to report in litres.

    Measured: Baseline and 4 weeks

  20. Weekly Mean Pre-dose Morning Peak Expiratory Flow Rate (PEFR) After 4 Weeks

    Baseline PEFR was defined as the mean of the morning PEFR measurements obtained during the week just prior to first dose of randomized treatment.

    Measured: 4 weeks

  21. Weekly Mean Evening PEFR After 4 Weeks

    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: 4 weeks

  22. 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))

    Measured: 4 weeks

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

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

    Measured: Baseline and 4 weeks

  24. Maximum Concentration (Cmax)

    Cmax represents the maximum concentration of olodaterol and olodaterol glucuronide in plasma.

    Measured: Baseline and 4 weeks

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

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

    Measured: Baseline and 4 weeks

  26. 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 in plasma from 0 to time t=3 at steady state.

    Measured: Baseline and 4 weeks

  27. 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 in plasma from 0 to time t=6 at steady state.

    Measured: Baseline and 4 weeks

  28. 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 in plasma from 0 to time t=24 at steady state.

    Measured: Baseline and 4 weeks

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

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

    Measured: Baseline and 4 weeks

  30. 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 in plasma at steady state.

    Measured: Baseline and 4 weeks

  31. 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

  32. 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 day 29

Timeline

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

  1. First posted27 Mar 2007 (estimated)
  2. Study startMar 2007
  3. Primary completionJan 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
409 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00452400
Sponsor's protocol ID
1222.5
Status last verified
May 2014
First submitted
26 Mar 2007
Last updated
27 Jun 2014

Publications

  • Maleki-Yazdi MR, Beck E, Hamilton AL, Korducki L, Koker P, Fogarty C. A randomised, placebo-controlled, Phase II, dose-ranging trial of once-daily treatment with olodaterol, a novel long-acting beta2-agonist, for 4 weeks in patients with chronic obstructive pulmonary disease. Respir Med. 2015 May;109(5):596-605. doi: 10.1016/j.rmed.2015.02.012. Epub 2015 Mar 3.

    PubMed 25829298

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing BI 1744CL in people with Pulmonary Disease, Chronic Obstructive and Asthma, run by Boehringer Ingelheim at 42 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 7 inclusion and 24 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 42 sites in United States, Canada, Germany, Netherlands. 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 3 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 NCT00452400, 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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