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AsthmaPhase 2NCT00292877

The Prednisone-sparing Effect of Anti-IL-5 Antibody (SB-240563)

A Phase 2 study testing SB-240563 (Mepolizumab) in people with Asthma, run by St. Joseph's Healthcare Hamilton at 1 site in Canada.

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 purpose of this study is to determine if treatment with anti-IL-5 antibody has a prednisone-sparing effect in patients with symptomatic eosinophilic bronchitis (with or without asthma). Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Asthma
What is being tested?
SB-240563 (Mepolizumab)
How many people
20 participants
Where
1 siteCanada
Study dates
Jan 2005to Jul 2008
Phase
Phase 2
Are there results?
None posted in the registry

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

  • Adult patients, aged 18-70 years, who have been followed as an outpatient and who have been found to require a minimum dose of prednisone treatment (in addition to high-dose inhaled steroid treatment) to prevent frequent exacerbations associated with induced sputum eosinophilia.
  • Patients will be enrolled if, at screening and baseline visits, they demonstrate sputum eosinophilia and symptoms. The symptoms may effect activity and sleep but should not, in the opinion of the treating physician, be severe enough to be of concern.
  • While FEV1 after withholding bronchodilators appropriately, before and after inhaled salbutamol (200 mg), and methacholine PC20 will be measured, these need not be abnormal since the prednisone is required for the control of eosinophilic bronchitis and any clinical consequences of this, and because the bronchitis can occur without these features of asthma.
  • On the same doses of corticosteroids for a least one-month.

Who cannot join

  • Pregnancy, breast-feeding or lack of effective contraception in females of childbearing potential or females who are postmenopausal <1 year.
  • Baseline FEV1 before bronchodilator of 40% or less of predicted. This lower FEV1 is acceptable since chronic airflow limitation secondary to the eosinophilic bronchitis or asthma is not an exclusion criteria. Neither is current or ex-cigarette smoking providing that the best FEV1 in these patients has been >60% predicted normal or the best FEV1/VC ratio has been >60% in the past two years.
  • Exposure to a relevant seasonal environmental allergen, known to worsen asthma control, during the study period.
  • Respiratory tract infection in the 4-weeks before the baseline visit.
  • Clinical exacerbation requiring extra prednisone treatment in the 4-weeks before V1.
  • Other cardiac, pulmonary, renal or systemic diseases that in the investigator's opinion may interfere with the study results or compromise subject's safety.
  • Previous participation in any study using anti-monoclonal drug.

Trial locations and contacts

1 site in 1 country.

Canada1 site

  • Firestone Institute for Respiratory Health, St. Joseph's Healthcare Hamilton

    Hamilton, Ontario, L8N 4A6

Other trials in Canada

About this study

Official title: The Effects of a Humanized Anti-IL-5 Monoclonal Antibody (SB-240563) on Asthma Control, Airway Eosinophilia and the Degree to Which Corticosteroid Treatment Can be Reduced to Maintain Control

The purpose of this study is to determine if treatment with anti-IL-5 antibody has a prednisone-sparing effect in patients with symptomatic eosinophilic bronchitis (with or without asthma).

Read the detailed description

Eosinophilic bronchitis, which is identified by quantitative sputum cell counts (eosinophils greater than 2%) is responsive to corticosteroid treatment. It occurs alone or in association with asthma or in some patients with chronic obstructive pulmonary disease (COPD). In most patients the eosinophilic bronchitis responds to treatment with inhaled steroids but in some it requires a minimum dose of prednisone to keep it controlled. At present, there is no outstanding drug which can have a prednisone-sparing effect.

Interleukin (IL)-5 is a cytokine specifically focused on the development, differentiation, recruitment, activation and survival of the eosinophil. The specificity of IL-5 has raised the possibility that blocking it's activity, using humanized monoclonal antibodies, may be useful therapy for eosinophilic bronchitis. Such an antibody (SB-240563) has been introduced for clinical trial. The investigators will compare its effect versus placebo in patients with prednisone-dependant symptomatic eosinophilic bronchitis (with or without asthma) before and after a reduction in prednisone dose to identify if it has a prednisone-sparing effect.

The study is divided into 3 sequential study periods. Period 1: symptomatic eosinophilic bronchitis (with or without asthma) on the same dose of prednisone for 6-weeks or more. Period 2: standardized prednisone reduction (and inhaled steroid if prednisone is discontinued during the study treatment) at intervals of 4-weeks until there is a clinical and eosinophilic exacerbation or bothersome steroid withdrawl effects. Period 3: washout.

The patients will be seen every 2 weeks. Intravenous injections of SB-240563 750mg or placebo will be given at weeks 2,6,10,14 and 18. Doses of prednisone will be reduced in a standard way.

Conditions
Asthma
Being tested
SB-240563 (Mepolizumab)
Keywords
1. Eosinophilic bronchitis, 2. Asthma, 3. Steroid dependent asthma, 4. Sputum eosinophils, 5. SB-240563 (Mepolizumab)
Medical subject headings
Asthma

What participants receive

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

  • SB-240563 (Mepolizumab)Drug

What is being measured

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

  1. The prednisone-sparing effect of SB-240563 versus placebo as

  2. indicated by the absolute and percentage dose reduction possible without a clinical exacerbation (as measured by the Juniper ACQ in patients with asthma or by Likert symptom scores +/- FEV1 in patients with eosinophilic bronchitis without asthma).

Secondary outcomes (4)

  1. The prednisone-sparing effect of SB-240563 or placebo as indicated

  2. by the absolute and percentage dose reduction possible without a clinical

  3. exacerbation as measured by

  4. a.% sputum eosinophils, b. FEV1 % predicted and methacholine PC20., c. Blood eosinophils, d. Amount of rescue salbutamol use., e. Time to exacerbation.

Timeline

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

  1. First posted16 Feb 2006 (estimated)
  2. Study startJan 2005
  3. Primary completionJun 2008
  4. Study completionJul 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
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Enrolment
20 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00292877
Sponsor's protocol ID
RP#02-2115
Other IDs
SB-240563/046, 9427-F2453-21C
Status last verified
Jan 2011
First submitted
15 Feb 2006
Last updated
24 Jan 2011
Results posted
No
Data monitoring committee
No

Publications

  • Sanderson CJ. The biological role of interleukin 5. Int J Cell Cloning. 1990 Jan;8 Suppl 1:147-53; discussion 153-4. doi: 10.1002/stem.5530080713.

    PubMed 2182734

  • Leckie MJ, ten Brinke A, Khan J, Diamant Z, O'Connor BJ, Walls CM, Mathur AK, Cowley HC, Chung KF, Djukanovic R, Hansel TT, Holgate ST, Sterk PJ, Barnes PJ. Effects of an interleukin-5 blocking monoclonal antibody on eosinophils, airway hyper-responsiveness, and the late asthmatic response. Lancet. 2000 Dec 23-30;356(9248):2144-8. doi: 10.1016/s0140-6736(00)03496-6.

    PubMed 11191542

  • Djukanovic R, Roche WR, Wilson JW, Beasley CR, Twentyman OP, Howarth RH, Holgate ST. Mucosal inflammation in asthma. Am Rev Respir Dis. 1990 Aug;142(2):434-57. doi: 10.1164/ajrccm/142.2.434.

    PubMed 2200318

  • Djukanovic R, Sterk PJ, Fahy JV, Hargreave FE. Standardised methodology of sputum induction and processing. Eur Respir J Suppl. 2002 Sep;37:1s-2s. doi: 10.1183/09031936.02.00000102. No abstract available.

    PubMed 12361359

  • Pavord ID, Brightling CE, Woltmann G, Wardlaw AJ. Non-eosinophilic corticosteroid unresponsive asthma. Lancet. 1999 Jun 26;353(9171):2213-4. doi: 10.1016/S0140-6736(99)01813-9. No abstract available.

    PubMed 10392993

  • Nair P, Pizzichini MM, Kjarsgaard M, Inman MD, Efthimiadis A, Pizzichini E, Hargreave FE, O'Byrne PM. Mepolizumab for prednisone-dependent asthma with sputum eosinophilia. N Engl J Med. 2009 Mar 5;360(10):985-93. doi: 10.1056/NEJMoa0805435.

    PubMed 19264687

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing SB-240563 (Mepolizumab) in people with Asthma, run by St. Joseph's Healthcare Hamilton at 1 site 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 4 inclusion and 7 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 24 Jan 2011. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

The prednisone-sparing effect of SB-240563 versus placebo as. The study lists 2 primary outcomes in all. 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 NCT00292877, which also lists 6 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 24 Jan 2011.

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