Chronic Obstructive Pulmonary Disease (COPD)Phase 3NCT00567996
Efficacy and Safety of Indacaterol in Patients With Chronic Obstructive Pulmonary Disease (COPD) Using Salmeterol as Active Control
A Phase 3 study testing Indacaterol 150 μg and Salmeterol 50 μg in people with Chronic Obstructive Pulmonary Disease (COPD), run by Novartis at 128 sites in 15 countries.
Trial summary
This study evaluated the safety and efficacy of 26 weeks treatment with indacaterol, placebo or salmeterol in patients with chronic obstructive pulmonary disease. Read more about this study
- Who is it for?
- Ages 40 years and older
- Conditions the study is for
- Chronic Obstructive Pulmonary Disease (COPD)
- What is being tested?
- Indacaterol 150 μg and Salmeterol 50 μg
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 1,002 participants
- Where
- 128 sitesin 15 countries
- Study dates
- Nov 2007to Jan 2009
- Phase
- Phase 3
- 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
- Clinical diagnosis of moderate to severe Chronic Obstructive Pulmonary Disease (COPD) as per the Global Initiative for Chronic Obstructive Lung Disease (GOLD) 2006 Guidelines (mandatory) and including:
- Smoking history of at least 20 pack years
- Post-bronchodilator Forced Expiratory Volume in 1 second (FEV1) < 80% predicted and >or= 30% of predicted normal value
- Post-bronchodilator FEV1/FVC < 70%
- ("Post" defined as within 30 minutes of inhalation of 400 µg salbutamol)
Who cannot join
- Pregnant or nursing (lactating) women and women of child-bearing potential UNLESS they meet pre-specified definitions of post-menopausal or are using pre-specified acceptable methods of contraception
- Hospitalisation for COPD exacerbation in the 6 weeks prior to Visit 1 or during run-in
- Patients requiring oxygen therapy for chronic hypoxemia (typically >15h/day)
- Respiratory tract infection within 6 weeks prior to Visit 1 and during the run-in period
- Concomitant pulmonary disease
- Asthma history (eosinophils > 400/mm3; symptoms prior to age 40). Includes history of childhood asthma
Show all 14Show fewer
- History of long QTc syndrome or QTc interval > 450 ms for males and >470 ms for females
- Patients who have a clinically significant condition or a clinically relevant laboratory abnormality
- History of reactions to sympathomimetic amines or inhaled medication
- Inability to use the dry powder devices or perform spirometry
- Irregular day/night, wake/sleep cycles, e.g. shift workers
- Certain medications for COPD and allied conditions such as long acting bronchodilators must not be used prior to Visit 1 and for a pre-specified minimum washout period
- Patients unable or unwilling to complete a patient diary
- Other protocol-defined inclusion/exclusion criteria may apply.
Trial locations and contacts
128 sites in 15 countries.
128 sites in 15 countries
Germany37 sites
Novartis Investigator Site
Bad Segeberg
Novartis Investigator Site
Berlin
Novartis Investigator Site
Bielefeld
Novartis Investigator Site
Bochum
Novartis Investigator Site
Bonn
Novartis Investigator Site
Brühl
Novartis Investigator Site
Cologne
Novartis Investigator Site
Cottbus
Novartis Investigator Site
Dortmund
Novartis Investigator Site
Düren
Novartis Investigator Site
Eggenfelden
Novartis investigator site
Eschwege
Novartis Investigator Site
Forchheim
Novartis Investigator Site
Freudenberg
Novartis Investigator Site
Fürth
Novartis Investigator Site
Gelsenkirchen
Novartis Investigator Site
Gummersbach
Novartis Investigator Site
Hagen
Novartis Investigator Site
Hanover
Novartis Investigator Site
Kassel
Novartis Investigator Site
Kempten
Novartis Investigator Site
Landsberg am Lech
Novartis Investigator Site
Langenfeld
Novartis Investigator Site
Leipzig
Novartis Investigator Site
Mainz
Novartis Investigator Site
München
Novartis Investigator Site
Munich
Novartis Investigator Site
Neuss
Novartis Investigator Site
Nuremberg
Novartis Investigator Site
Oschersleben
Novartis Investigator Site
Ruhmannsfelden
Novartis Investigator site
Sinsheim
Novartis Investigator Site
Solingen
Novartis Investigator Site
Steinfort-borghorst
Novartis Investigator Site
Vilshofen
Novartis Investigator Site
Wallerfing
Novartis Investigator Site
Witten
Italy16 sites
Novartis Investigator Site
Ancona
Novartis Investigator Site
Arenzano
Novartis Investigative Site
Ascoli Piceno
Novartis Investigator Site
Brescia
Novartis Investigator Site
Cagliari
Novartis investigator site
Chieti
Novartis Investigator Site
Ferrara
Novartis Investigator Site
Milan
Novartis Investigator Site
Milan
Novartis Investigator Site
Orbassano
Novartis Investigator Site
Palermo
Novartis Investigator Site
Reggio Emilia
Novartis Investigator Site
Rome
Novartis Investigator Site
Sexten
Novartis Investigator Site
Siena
Novartis Investigator Site
Terni
Denmark12 sites
Novartis Investigator Site
Aalborg
Novartis Investigator Site
Aarhus
Novartis Investigative Site
Copenhagen
Novartis Investigator Site
Copenhagen
Novartis Investigator Site
Frederikssund
Novartis investigator site
Hellerup
Novartis Investigator site
Hvidovre
Novartis investigator site
Odense
Novartis Investigator Site
Roslev
Novartis Investigative Site
Silkeborg
Novartis Investgative Site
Søborg
Novartis Investigator Site
Vaerloese
India9 sites
Novartis Investigator Site
Chennai
Novartis Investigator Site
Coimbatore
Novartis Investigator Site
Goa
Novartis Investigator Site
Hyderabad
Novartis Investigator Site
Jaipur
Novartis Investigator Site
Kerala
Novartis Investigator Site
Mangalore
Novartis Investigator Site
Mumbai
Novartis Investigator Site
Vellore
Canada6 sites
Novartis Investigative Site
Edmonton
Novartis Investigator Site
Edmonton
Novartis Investigator Site
London
Novartis Investigator Site
Mirabel
Novartis Investigator Site
Montreal
Novartis Investigator Site
Toronto
Czechia6 sites
Novartis Investigator Site
Cvikov
Novartis Investigator Site
Lovosice
novartis Investigator site
Novy Jocin
Novartis Investigator Site
Pardubice
Novartis Investigator Site
Prague
Novartis Investigative Site
Žatec
Finland6 sites
Novartis Investigator Site
Hus
Novartis Investigator Site
Jyväskylä
Novartis Investigator Site
Lahti
Novartis Investigator Site
Oulu
Novartis Investigator Site
Tampere
Novartis Investigator Site
Turku
Peru6 sites
Novartis Investigator Site
Callao
Novartis Investigator Site
Miraflores
Novartis Investigator Site
San Borja
Novartis Investigator Site
San Isidro
Novartis Investigator Site
San Martín de Porres
Novartis Investigator Site
Surco
Russia6 sites
Novartis Investigator Site
Kazan'
Novartis Investigator Site
Moscow
Novartis Investigator Site
Saint Petersburg
Novartis Investigator Site
Samara
Novartis Investigator Site
Yaroslavl
Novartis Investigator Site
Yekaterinburg
Taiwan6 sites
Novartis Investigator Site
Changhua
Novartis Investigator Site
Kaohsiung City
Novartis Investigator Site
Kaohusing
Novartis Investigator Site
Lin-ko
Novartis Investigator Site
Taichung
Novartis Investigator Site
Taipei
Hungary5 sites
Novartis Investigator Site
Budapest
Novartis investigator site
Debrechen
Novartis Investigator Site
Deszk
Novartis Investigator Site
Mosonmagyaróvár
Novartis Investigator Site
Székesfehérvár
Slovakia5 sites
Novartis Investigator Site
Bardejov
Novartis Investigator Site
Bratislava
Novartis Investigator Site
Košice
Novartis Investigator Site
Kovice
Novartis Investigator Site
Spišská Nová Ves
France4 sites
Novartis Investigative Site
Ambroise
Novartis Investigative Site
Beuvry
Novartis Investgative Site
Férolles-Attilly
Novartis Investigator Site
Nice
Colombia3 sites
Novartis Investigator site
Barranquilla
Novartis Investigator Site
Bogota D.C.
Novartis Investigator Site
Medellín
About this study
Official title: A 26-week Treatment, Multi-center, Randomized, Double-blind, Double- Dummy, Placebo-controlled, Parallel-group Study to Assess the Efficacy, and Safety of Indacaterol (150 µg o.d.) in Patients With Chronic Obstructive Pulmonary Disease, Using Salmeterol (50 µg b.i.d.) as an Active Control
This study evaluated the safety and efficacy of 26 weeks treatment with indacaterol, placebo or salmeterol in patients with chronic obstructive pulmonary disease.
- Being tested
- Indacaterol 150 μg, Salmeterol 50 μg, Placebo to Indacaterol, Placebo to Salmeterol
- Keywords
- Chronic obstructive pulmonary disease, indacaterol, salmeterol, placebo controlled
- Medical subject headings
- Pulmonary Disease, Chronic Obstructive
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Indacaterol 150 μgDrug
Indacaterol 150 μg once daily (o.d) inhaled
Salmeterol 50 μgDrug
Salmeterol 50 μg twice daily (b.i.d) delivered via a proprietary dry powder inhaler
Placebo to IndacaterolDrug
Placebo to Indacaterol inhaled via SDDPI.
Placebo to SalmeterolDrug
Placebo to salmeterol delivered via a proprietary dry powder inhaler
| Study group | Role | What they receive |
|---|---|---|
| Indacaterol 150 μg | Experimental | Indacaterol 150 μg once daily in the morning, inhaled via a single dose dry powder inhaler (SDDPI). Placebo to Salmeterol delivered twice daily via a proprietary dry powder inhaler in the morning and in the evening.
Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) salbutamol/albuterol was available for rescue use throughout the study. Receives: Drug: Indacaterol 150 μg; Drug: Placebo to Salmeterol |
| Placebo | Placebo comparator | Placebo to Indacaterol once daily in the morning, inhaled via a single dose dry powder inhaler (SDDPI). Placebo to Salmeterol delivered twice daily via a proprietary dry powder inhaler in the morning and in the evening.
Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) salbutamol/albuterol was available for rescue use throughout the study. Receives: Drug: Placebo to Indacaterol; Drug: Placebo to Salmeterol |
| Salmeterol 50 μg | Active comparator | Salmeterol 50 μg twice daily delivered via a proprietary dry powder inhaler in the morning and in the evening. Placebo to Indacaterol daily in the morning, inhaled via a single dose dry powder inhaler (SDDPI).
Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) salbutamol/albuterol was available for rescue use throughout the study. Receives: Drug: Salmeterol 50 μg; Drug: Placebo to Indacaterol |
What is being measured
The primary outcome is the main question the study is designed to answer.
Trough Forced Expiratory Volume in 1 Second (FEV1) After 12 Weeks of Treatment
Spirometry was conducted according to internationally accepted standards. Trough FEV1 was defined as the average of the 23 hour 10 minute and 23 hour 45 minute post-dose FEV1 readings. Mixed model used baseline FEV1, FEV1 prior to and 10-15 minutes post inhalation of salbutamol/albuterol, and FEV1 prior to and 1 hour post inhalation of ipratropium as covariates.
Measured: Week 12
Secondary outcomes (2)
St. George's Respiratory Questionnaire (SGRQ) Total Score After 12 Weeks of Treatment
SGRQ is a health related quality of life questionnaire consisting of 76 items in three sections: symptoms, activity and impacts. The total score is 0 to 100 with a higher score indicating poorer health status. The mixed model used baseline SGRQ total score, FEV1 prior to and 30 minutes post inhalation of salbutamol/albuterol, and FEV1 prior to and one hour post inhalation of ipratropium as covariates.
Measured: Week 12
Percentage of COPD "Days of Poor Control" During 26 Weeks of Treatment
Participants rated their symptoms on a scale of 0=none to 3=severe. A Chronic Obstructive Pulmonary Disease (COPD) "day of poor control" was defined as any day in the participants diary with a score >=2 (moderate or severe) for at least 2 of 5 symptoms (cough, wheeze, production of sputum, color of sputum, breathlessness). The mixed model used baseline percentage of "days of poor control", FEV1 prior to and 30 minutes post inhalation of salbutamol/albuterol, and FEV1 prior to and one hour post inhalation of ipratropium as covariates.
Measured: Up to 26 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted5 Dec 2007 (estimated)
- Study startNov 2007
- Primary completionJan 2009
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for Chronic Obstructive Pulmonary Disease (COPD)Studies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind
- Who is masked
- Participant, Investigator, Outcomes assessor
- Enrolment
- 1,002 participants (actual)
Sponsor and investigators
- Lead sponsor
- Novartis
- Sponsor type
- Industry (pharma, biotech, devices)
- Investigators
- Novartis Pharma AG, Study chair, Novartis Pharmaceuticals
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00567996
- Sponsor's protocol ID
- CQAB149B2336
- Status last verified
- Jul 2011
- First submitted
- 4 Dec 2007
- Last updated
- 18 Aug 2011
- Results posted
- Yes, on ClinicalTrials.gov
Publications
Yelensky R, Li Y, Lewitzky S, Leroy E, Hurwitz C, Rodman D, Trifilieff A, Paulding CA. A pharmacogenetic study of ADRB2 polymorphisms and indacaterol response in COPD patients. Pharmacogenomics J. 2012 Dec;12(6):484-8. doi: 10.1038/tpj.2011.54. Epub 2011 Dec 13.
PubMed 22158330Jones PW, Mahler DA, Gale R, Owen R, Kramer B. Profiling the effects of indacaterol on dyspnoea and health status in patients with COPD. Respir Med. 2011 Jun;105(6):892-9. doi: 10.1016/j.rmed.2011.02.013. Epub 2011 Mar 11.
PubMed 21397482Worth H, Chung KF, Felser JM, Hu H, Rueegg P. Cardio- and cerebrovascular safety of indacaterol vs formoterol, salmeterol, tiotropium and placebo in COPD. Respir Med. 2011 Apr;105(4):571-9. doi: 10.1016/j.rmed.2010.11.027. Epub 2011 Jan 11.
PubMed 21227674
Study at a glance
From the registry record, last updated by the sponsor on 18 Aug 2011. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A 26-week Treatment, Multi-center, Randomized, Double-blind, Double- Dummy, Placebo-controlled, Parallel-group Study to Assess the Efficacy, and Safety of Indacaterol (150 µg o.d.) in Patients With Chronic Obstructive Pulmonary Disease, Using Salmeterol (50 µg b.i.d.) as an Active Control
- ClinicalTrials.gov ID
- NCT00567996
- Acronym / sponsor ID
- CQAB149B2336
- Keywords
- Chronic obstructive pulmonary disease, indacaterol, salmeterol, placebo controlled
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 1,002 participants (actual)
- Lead sponsor
- NovartisIndustry (pharma, biotech, devices)
- Study start
- Nov 2007
- Primary completion
- Jan 2009 (actual)
- First posted
- 5 Dec 2007 (estimated)
- Results
- Posted 18 Aug 2011
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study evaluated the safety and efficacy of 26 weeks treatment with indacaterol, placebo or salmeterol in patients with chronic obstructive pulmonary disease.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, investigator, outcomes assessor)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Indacaterol 150 μg | Experimental | Drug: Indacaterol 150 μg, Drug: Placebo to SalmeterolIndacaterol 150 μg once daily in the morning, inhaled via a single dose dry powder inhaler (SDDPI). Placebo to Salmeterol delivered twice daily via a proprietary dry powder inhaler in the morning and in the evening. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) salbutamol/albuterol was available for rescue use throughout the study. |
| Placebo | Placebo comparator | Drug: Placebo to Indacaterol, Drug: Placebo to SalmeterolPlacebo to Indacaterol once daily in the morning, inhaled via a single dose dry powder inhaler (SDDPI). Placebo to Salmeterol delivered twice daily via a proprietary dry powder inhaler in the morning and in the evening. Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) salbutamol/albuterol was available for rescue use throughout the study. |
| Salmeterol 50 μg | Active comparator | Drug: Salmeterol 50 μg, Drug: Placebo to IndacaterolSalmeterol 50 μg twice daily delivered via a proprietary dry powder inhaler in the morning and in the evening. Placebo to Indacaterol daily in the morning, inhaled via a single dose dry powder inhaler (SDDPI). Daily inhaled corticosteroid treatment (if applicable) was allowed to remain stable throughout the study. The short acting (beta) β2-agonist (SABA) salbutamol/albuterol was available for rescue use throughout the study. |
Who may qualify
- Ages
- 40 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Clinical diagnosis of moderate to severe Chronic Obstructive Pulmonary Disease (COPD) as per the Global Initiative for Chronic Obstructive Lung Disease (GOLD) 2006 Guidelines (mandatory) and including:
- Smoking history of at least 20 pack years
- Post-bronchodilator Forced Expiratory Volume in 1 second (FEV1) < 80% predicted and >or= 30% of predicted normal value
- Post-bronchodilator FEV1/FVC < 70%
- ("Post" defined as within 30 minutes of inhalation of 400 µg salbutamol)
Key exclusion criteria (14 listed)
- Pregnant or nursing (lactating) women and women of child-bearing potential UNLESS they meet pre-specified definitions of post-menopausal or are using pre-specified acceptable methods of contraception
- Hospitalisation for COPD exacerbation in the 6 weeks prior to Visit 1 or during run-in
- Patients requiring oxygen therapy for chronic hypoxemia (typically >15h/day)
- Respiratory tract infection within 6 weeks prior to Visit 1 and during the run-in period
- Concomitant pulmonary disease
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Indacaterol 150 μgIndacaterol 150 μg once daily (o.d) inhaled | Drug | Indacaterol 150 μg |
| Salmeterol 50 μgSalmeterol 50 μg twice daily (b.i.d) delivered via a proprietary dry powder inhaler | Drug | Salmeterol 50 μg |
| Placebo to IndacaterolPlacebo to Indacaterol inhaled via SDDPI. | Drug | Placebo, Salmeterol 50 μg |
| Placebo to SalmeterolPlacebo to salmeterol delivered via a proprietary dry powder inhaler | Drug | Indacaterol 150 μg, Placebo |
Primary outcome
Trough Forced Expiratory Volume in 1 Second (FEV1) After 12 Weeks of Treatment
Time frame: Week 12
Spirometry was conducted according to internationally accepted standards. Trough FEV1 was defined as the average of the 23 hour 10 minute and 23 hour 45 minute post-dose FEV1 readings. Mixed model used baseline FEV1, FEV1 prior to and 10-15 minutes post inhalation of salbutamol/albuterol, and FEV1 prior to and 1 hour post inhalation of ipratropium as covariates.
2 secondary outcomes
St. George's Respiratory Questionnaire (SGRQ) Total Score After 12 Weeks of Treatment
Time frame: Week 12
Percentage of COPD "Days of Poor Control" During 26 Weeks of Treatment
Time frame: Up to 26 weeks
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 18 Aug 2011.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 22158330Yelensky R, Li Y, Lewitzky S, Leroy E, Hurwitz C, Rodman D, Trifilieff A, Paulding CA. A pharmacogenetic study of ADRB2 polymorphisms and indacaterol response in COPD patients. Pharmacogenomics J. 2012 Dec;12(6):484-8. doi: 10.1038/tpj.2011.54. Epub 2011 Dec 13.
- Derived from this study: PubMed 21397482Jones PW, Mahler DA, Gale R, Owen R, Kramer B. Profiling the effects of indacaterol on dyspnoea and health status in patients with COPD. Respir Med. 2011 Jun;105(6):892-9. doi: 10.1016/j.rmed.2011.02.013. Epub 2011 Mar 11.
- Derived from this study: PubMed 21227674Worth H, Chung KF, Felser JM, Hu H, Rueegg P. Cardio- and cerebrovascular safety of indacaterol vs formoterol, salmeterol, tiotropium and placebo in COPD. Respir Med. 2011 Apr;105(4):571-9. doi: 10.1016/j.rmed.2010.11.027. Epub 2011 Jan 11.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Novartis Pharma AG study chair
Novartis Pharmaceuticals
128 sites in 15 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Indacaterol 150 μg and Salmeterol 50 μg in people with Chronic Obstructive Pulmonary Disease (COPD), run by Novartis at 128 sites in 15 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 5 inclusion and 14 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 18 Aug 2011. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 128 sites in Germany, Italy, Denmark, India, Canada and 10 more countries. 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. Some participants in this study may receive a placebo. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
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 18 Aug 2011). 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 Forced Expiratory Volume in 1 Second (FEV1) After 12 Weeks of Treatment (time frame: Week 12). 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 NCT00567996, which also lists 3 linked publications.
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 18 Aug 2011.