Optimal therapy of chronic obstructive pulmonary disease to prevent exacerbations and improve quality of life

ISRCTN ISRCTN29870041
DOI https://doi.org/10.1186/ISRCTN29870041
Secondary identifying numbers MCT-63139
Submission date
17/06/2005
Registration date
17/06/2005
Last edited
25/02/2009
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Respiratory
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Not provided at time of registration

Contact information

Dr Shawn David Aaron
Scientific

The Ottawa Hospital
Division of Respiratory Medicine
501 Smyth Road, Room 1812F
Ottawa, Ontario
K1H 8L6
Canada

Phone +1 613 739 6636
Email saaron@ohri.ca

Study information

Study designRandomised, double-blind, placebo-controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Scientific titleOptimal therapy of chronic obstructive pulmonary disease to prevent exacerbations and improve quality of life: a randomised, double-blind, placebo-controlled trial
Study objectivesTo determine what combination of inhaled medications will most effectively prevent exacerbations of chronic obstructive pulmonary disease (COPD) and optimise disease-specific quality of life in patients with COPD.
Ethics approval(s)Ottawa Hospital Research Ethics Board approval was obtained on the 9th April 2003 (amendments: November 4, 2003; January 29, 2004; June 22, 2004).
Health condition(s) or problem(s) studiedChronic obstructive pulmonary disease (COPD)
Intervention1. Tiotropium 18 µg once a day (OD) plus advair 250 µg two puffs twice a day (BID)
2. Tiotropium 18 µg OD plus salmeterol 25 µg/puffs, two puffs BID
3. Tiotropium 18 µg OD plus placebo inhaler, two puffs BID

Pro re nata (PRN) (as needed) salbutamol use will be allowed throughout the trial period.
Intervention typeDrug
Pharmaceutical study type(s)
PhaseNot Applicable
Drug / device / biological / vaccine name(s)Tiotropium, advair, salmeterol
Primary outcome measureProportion of patients who experience a respiratory exacerbation in the three treatment groups within 52 weeks of randomisation.
Secondary outcome measures1. Changes in quality of life using Chronic Respiratory Disease Questionnaire (CRDQ) and St George's Respiratory Questionnaire (SGRQ) scores
2. Changes in dyspnoea using the baseline Transitional Dyspnoea Indexes (TDI) and Chronic Respiratory Questionnaire (CRQ) dyspnoea domain
3. Number of exacerbations resulting in urgent visits to healthcare provider; or emergency department visits
4. Total number of hospitalisations (all causes)
5. Time to first COPD exacerbation
6. Mean/median number of exacerbations in each treatment group
7. Absolute and relative changes in the morning pre-treatment FEV1 and FVC
8. Use of as-needed salbutamol (puffs/day) - as assessed by patient’s diary
9. Premature discontinuation of study medication, for reasons of diverse effects or lack of efficacy, as judged by patient’s physician
Overall study start date08/10/2003
Completion date05/01/2006

Eligibility

Participant type(s)Patient
Age groupAdult
SexBoth
Target number of participants432
Key inclusion criteria1. Patients with moderate or severe COPD who have had at least one exacerbation of COPD in the last 12 months requiring antibiotics and/or oral steroids
2. Patients 35 years and older, either sex
3. Patients must have a history of at least 10-pack years of smoking, and documented chronic airflow obstruction with a forced expiratory volume in one second (FEV1)/forced vital capacity (FVC) ratio of less than 0.70, and an FEV1 of less than 65% of predicted
Key exclusion criteria1. Patients with a history of atopy, or asthma diagnosed before age 40
2. Patients less than 35 years of age (since patients younger than 35 are unlikely to have COPD)
3. Patients using chronic oral prednisone
4. Patients with known hypersensitivity or intolerance to tiotropum, advair, or salmeterol
5. Patients with a history of chronic congestive heart failure and known severe left ventricular dysfunction (which can mimic and be confused with COPD exacerbation)
6. Patients unable to provide informed consent due to language difficulties or cognitive impairment
Date of first enrolment08/10/2003
Date of final enrolment05/01/2006

Locations

Countries of recruitment

  • Canada

Study participating centre

The Ottawa Hospital
Ottawa, Ontario
K1H 8L6
Canada

Sponsor information

Ottawa Hospital Research Institute (Canada)
Hospital/treatment centre

501 Smyth Road
Ottawa, Ontario
K1H 8L6
Canada

Phone +1 613 798 5555 ext 16857
Email rhanlon@ohri.ca
Website http://www.ohri.ca/
ROR logo "ROR" https://ror.org/03c62dg59

Funders

Funder type

Research organisation

Canadian Institutes of Health Research (CIHR) (Canada) - http://www.cihr-irsc.gc.ca (ref: MCT-63139)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 17/04/2007 Yes No