AzTrials
AzTrials

AsthmaNCT00509197

Should Non-eosinophilic Asthmatic Subjects be Treated With Inhaled Corticosteroids?

A study testing Fluticasone in people with Asthma, run by Université de Montréal at 7 sites in Canada.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
Search all trials

Trial summary

The efficacy of inhaled corticosteroids (ICS) in asthmatic subjects showing no sputum eosinophils is controversial. The broad aim of this study is to assess whether ICS alone or in combination with long-acting beta-2 agonists are an effective treatment in non-eosinophilic asthmatic subjects. Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Asthma
What is being tested?
Fluticasone
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
12 participants
Where
7 sitesCanada
Study dates
Oct 2007to Sep 2010
Phase
Interventional
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

  • Are between 18 and 70 years of age at the time of signing the informed consent.
  • Have a diagnosis of asthma according to the Guidelines for the Diagnosis and Management of Asthma and have not been treated with ICS in the previous two months.
  • Have a PC20 methacholine less than 8 mg/ml.
  • Have a baseline FEV1 greater or equal to 65% of predicted value (at least 6 hours after bronchodilator).
  • Are not optimally controlled with short-acting 2 agonists as shown by awakenings due to asthmatic symptoms at least once a week, or regular use of salbutamol on 4 or more occasions per week (excluding exercise prophylaxis) due to asthma symptoms.
  • ACQ score equal or greater than 2
  • Have sputum eosinophils less than 2%
  • Are non smokers or ex-smokers who smoked a maximum of 10 pack/year.

Who cannot join

  • Hospitalized patients within the last 3 months
  • Current or recent (within the last month) symptoms of a cold or flu
  • Patients with a history of near fatal asthma
  • Subjects on inhaled corticosteroids, prednisone, long-acting beta 2 agonists, montelukast or theophylline, within 2 months prior to entry into the study.

Trial locations and contacts

7 sites in 1 country.

7 sites in 1 country

Canada7 sites
  • Calgary University

    Calgary, Alberta

  • Firestone Institute for Respiratory Health

    Hamilton, Ontario

  • The Meakins-Christie Laboratories

    Montreal, Quebec, H2X 2P2

  • Hôpital du Sacré-Coeur de Montréal

    Montreal, Quebec, H4J 1C5

  • The Ottawa Hospital

    Ottawa, Ontario, K1H 8L6

  • Hôpital Laval

    Québec, Quebec, G1V 4G5

  • Vancouver General Hospital

    Vancouver, British Columbia, V5Z 1M9

Other trials in Canada

About this study

The efficacy of inhaled corticosteroids (ICS) in asthmatic subjects showing no sputum eosinophils is controversial. The broad aim of this study is to assess whether ICS alone or in combination with long-acting beta-2 agonists are an effective treatment in non-eosinophilic asthmatic subjects. Methods: The investigators will perform a randomized double-blind, placebo-controlled, multicenter study comparing the efficacy of ICS and placebo for 4 weeks followed by a 4-week open treatment period with ICS/salmeterol in steroid-naïve asthmatic subjects without sputum eosinophilia. The primary outcome will be the the Asthma Control Questionnaire (ACQ) score after four weeks of treatment by ICS or placebo.

This study will determine whether or not non-eosinophilic asthmatic subjects respond to ICS and if they further benefit from the addition of a long-acting beta-2 agonists. This study will also determine whether or not the assessment of airway inflammation should be performed in every asthmatic patient in order to give the most appropriate treatment.

Read the detailed description

General objective: To assess whether inhaled corticosteroids alone or in combination with long-acting beta-2 agonists are an effective treatment in non-eosinophilic asthmatic subjects.

Specific objective 1. To compare the change in clinical and functional outcomes after treatment with fluticasone or placebo in non-eosinophilic asthmatic subjects.

Specific objective 2. To assess whether the combination of inhaled corticosteroids (ICS) and with long-acting beta-2 agonists provides an improvement of asthma control compared to the treatment with ICS or placebo in non-eosinophilic asthmatics.

Hypothesis: Treatment with ICS induces a significant clinical and physiologic improvement of non-eosinophilic asthmatic subjects. ICS/Salmeterol also provides a clinical and physiologic benefit compared to placebo.

Primary end point: Asthma Control Questionnaire (ACQ) score after 4 weeks of treatment with ICS or placebo.

The Asthma Control Questionnaire has been chosen as a primary outcome since it is the most relevant clinical measure to assess asthma control over a short period of time. In patients whose asthma is stable between clinic visits, reliability of the ACQ is high (intraclass correlation coefficient (ICC)=0.90). Furthermore, the questionnaire is also very responsive to changes in asthma control(7). Therefore, this is the ideal tool to assess and compare the changes in asthma control over a short period of time. This instrument has the advantage of including both asthma symptoms as well as forced expiratory flow in one second (FEV1). A change of ACQ of 0.5 has been shown to be clinically significant. Therefore, we will be able to assess whether or not a treatment with ICS has the ability to significantly improve asthma control in non-eosinophilic asthmatic subjects. The questionnaire is provided in appendix III. Other functional and clinical outcomes such as quality of life, FEV1, provocative concentration of methacholine inducing a 20% fall in FEV1 (PC20), number of rescue medication and number of asthma exacerbations will also be assessed as secondary outcomes.

The study has two steps: The first step will be a randomized double-blind, placebo-controlled, multicenter study comparing the efficacy of ICS and placebo for 4 weeks in asthmatic subjects without sputum eosinophilia followed by an open ICS/salmeterol 4-week treatment for all subjects. (See study design in appendix III).

Inclusion criteria One hundred subjects will be enrolled.

Conditions
Asthma
Being tested
Placebo (sham inhaler), Fluticasone
Keywords
Asthma, Non-eosinophilic Asthma, sputum eosinophils, Inhaled Corticosteroids
Medical subject headings
Asthma

What participants receive

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

  • Placebo (sham inhaler)Drug

    Also called Sham inhaler

  • FluticasoneDrug

    Also called Flovent

    Fluticasone 250mcg bid for one month

Study groups in NCT00509197
Study groupRoleWhat they receive
Active treatment group (A)Active comparatorIntervention : treatment with inhaled corticosteroids (Fluticasone) will be administered to this group
Receives: Drug: Fluticasone
Control group treated with placebo (B)Placebo comparatortreatment with placebo
Receives: Drug: Placebo (sham inhaler)

What is being measured

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

  1. Asthma Control Questionnaire (ACQ) Score After 4 Weeks of Treatment With Inhaled Corticosteroids (ICS) or Placebo

    Validated questionnaire assessing asthma control after 4 weeks of treatment with ICS or placebo. The ACQ has 7 questions (the top scoring 5 symptoms, FEV1% pred. and daily rescue bronchodilator use). Patients are asked to recall how their asthma has been during the previous week and to respond to the symptom and bronchodilator use questions on a 7-point scale (0=no impairment, 6= maximum impairment). The ACQ score is the mean of 7 items and thus ranges between 0 (well controlled) and 6 (extremely poorly controlled) to yield a mean score out of 6. The higher the score, the worst asthma control is.

    Measured: Four weeks

Secondary outcomes (3)
  1. Asthma Quality of Life Questionnaire (AQLQ) Score After 4 Weeks of Treatment

    Validated questionnaire assessing quality of life related to asthma after 4 weeks of treatment. The AQLQ is composed of 32 questions in 4 domains (symptoms, activity limitation, emotional function and environmental stimuli). The activity domain contains 5 'patient-specific' questions. This allows patients to select 5 activities in which they are most limited and these activities will be assessed at each follow-up. Patients are asked to think about how they have been during the previous two weeks and to respond to each of the 32 questions on a 7-point scale (7 = not impaired at all - 1 = severely impaired). The AQLQ score is rated on a 7-point scale (1=maximal impairment, 7=no impairment) to yield a mean score out of 7. The worse the quality of life is , the lower the score is.

    Measured: Four weeks

  2. Change in Forced Expiratory Volume in One Second (FEV1)

    Change in forced expiratory volume in one second (FEV1) after fluticasone or placebo treatment.

    Measured: Four weeks

  3. Change in Provocative Concentration of Methacholine Inducing a 20% Fall in FEV1 (PC20)

    Change in provocative concentration of methacholine inducing a 20% fall in FEV1 (PC20) after fluticasone or placebo treatment

    Measured: Four weeks

Timeline

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

  1. First posted31 Jul 2007 (estimated)
  2. Study startOct 2007
  3. Primary completionMay 2010
  4. Study completionSep 2010

Why it stopped: Inability to complete the recruitment.

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 N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
12 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00509197
Sponsor's protocol ID
SFA110717
Status last verified
Jul 2016
First submitted
27 Jul 2007
Last updated
15 Aug 2016
Data monitoring committee
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Fluticasone in people with Asthma, run by Université de Montréal at 7 sites in Canada.

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 4 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: stopped early, as of the sponsor's last update on 15 Aug 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 7 sites in Canada. 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.

Are results available for this study?

Yes. Results are posted in the registry (first posted 15 Aug 2016). 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?

Asthma Control Questionnaire (ACQ) Score After 4 Weeks of Treatment With Inhaled Corticosteroids (ICS) or Placebo (time frame: Four weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 15 Aug 2016.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in