NCT00182481

Brief Summary

The purpose of this study was to determine whether the use of induced sputum cell counts could guide treatment of asthma more effectively than the use of symptoms and breathing tests. The main outcomes where the time to the first exacerbation and the number of exacerbations.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
112

participants targeted

Target at P50-P75 for not_applicable asthma

Timeline
Completed

Started Sep 1999

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 1999

Completed
2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2001

Completed
4 years until next milestone

First Submitted

Initial submission to the registry

September 12, 2005

Completed
4 days until next milestone

First Posted

Study publicly available on registry

September 16, 2005

Completed
Last Updated

December 16, 2005

Status Verified

October 1, 2003

First QC Date

September 12, 2005

Last Update Submit

December 15, 2005

Conditions

Keywords

asthma treatmentinduced sputum cell countsasthma exacerbationseosinophilic bronchitisnon-eosinophilic bronchitis

Outcome Measures

Primary Outcomes (1)

  • Relative risk reduction for the occurence of the first exacerbation and the length of time without exacerbation during Phase 2 of the study.

Secondary Outcomes (11)

  • Secondary outcomes were

  • The cellular type of exacerbation that was influenced,

  • The severity of asthma that was helped,

  • The dose of inhaled corticosteroid that was required,

  • Symptom control,

  • +6 more secondary outcomes

Interventions

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • History of asthma for at least one year,confirmed objectively.
  • New or previously reviewed patients where the minimal treatment requirements have not been established within the last six months.

You may not qualify if:

  • Smokers or ex-smokers for less than 6 months with a smoking history of more than 10 pack years.
  • Other pulmonary co-morbidity (other than mild or moderate chronic airflow limitation).
  • Subjects having a co-existing illness that precludes them from the study.
  • Inability to give informed consent due to mental or legal reasons.
  • Pregnancy or lactation.
  • Known non-compliance with medications.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

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

Hamilton, Ontario, L8N 4A6, Canada

Location

Related Publications (10)

  • Cockcroft DW, Swystun VA. Asthma control versus asthma severity. J Allergy Clin Immunol. 1996 Dec;98(6 Pt 1):1016-8. doi: 10.1016/s0091-6749(96)80185-0. No abstract available.

    PMID: 8977499BACKGROUND
  • 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.

    PMID: 10392993BACKGROUND
  • Parameswaran K, Pizzichini E, Pizzichini MM, Hussack P, Efthimiadis A, Hargreave FE. Clinical judgement of airway inflammation versus sputum cell counts in patients with asthma. Eur Respir J. 2000 Mar;15(3):486-90. doi: 10.1034/j.1399-3003.2000.15.10.x.

    PMID: 10759441BACKGROUND
  • Belda J, Leigh R, Parameswaran K, O'Byrne PM, Sears MR, Hargreave FE. Induced sputum cell counts in healthy adults. Am J Respir Crit Care Med. 2000 Feb;161(2 Pt 1):475-8. doi: 10.1164/ajrccm.161.2.9903097.

    PMID: 10673188BACKGROUND
  • Gibson PG, Simpson JL, Saltos N. Heterogeneity of airway inflammation in persistent asthma : evidence of neutrophilic inflammation and increased sputum interleukin-8. Chest. 2001 May;119(5):1329-36. doi: 10.1378/chest.119.5.1329.

    PMID: 11348936BACKGROUND
  • Green RH, Brightling CE, McKenna S, Hargadon B, Parker D, Bradding P, Wardlaw AJ, Pavord ID. Asthma exacerbations and sputum eosinophil counts: a randomised controlled trial. Lancet. 2002 Nov 30;360(9347):1715-21. doi: 10.1016/S0140-6736(02)11679-5.

    PMID: 12480423BACKGROUND
  • 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.

    PMID: 12361359BACKGROUND
  • Pizzichini MMM, Jayaram L, Pizzichini E, Boulet LP, Lemière C, Efithmiades A, Cartier A, Hargreave FE. O exame das células no escarro induzido pode alterar as exacerbações da asma? O estudo LOMA. Respirtory Society Meeting. Bahia- Brazil. J Bras Pneum 2004, 30: S24

    RESULT
  • Pizzichini MMM, Pizzichini E, Jayaram L, Boulet LP, Lemière C, Efithmiades A, Cartier A, Hargreave FE. Monitorando o tratamento da asma através do escarro induzido : efeito nas exacerbações. Latina America Thoracic Society Meeting, ALAT. Buenos Aires-Argentina. Arch de Bronconeumologia 2004, 40 S88-89.

    RESULT
  • Jayaram L, Pizzichini MM, Cook RJ, Boulet LP, Lemiere C, Pizzichini E, Cartier A, Hussack P, Goldsmith CH, Laviolette M, Parameswaran K, Hargreave FE. Determining asthma treatment by monitoring sputum cell counts: effect on exacerbations. Eur Respir J. 2006 Mar;27(3):483-94. doi: 10.1183/09031936.06.00137704.

MeSH Terms

Conditions

Asthma

Condition Hierarchy (Ancestors)

Bronchial DiseasesRespiratory Tract DiseasesLung Diseases, ObstructiveLung DiseasesRespiratory HypersensitivityHypersensitivity, ImmediateHypersensitivityImmune System Diseases

Study Officials

  • Frederick E Hargreave, MD

    McMaster University

    PRINCIPAL INVESTIGATOR
  • Louis-Philippe Boulet, MD

    Laval University, Sainte-Foy, Quebec

    PRINCIPAL INVESTIGATOR
  • Andre Cartier, MD

    Hopital du Sacre Coeur, Montreal, PQ

    PRINCIPAL INVESTIGATOR
  • Catherine Lemiere, MD

    Hopital du Sacre Coeur, Montreal, PQ

    PRINCIPAL INVESTIGATOR
  • Marcia Pizzichini, MD

    Universidade Federal de Santa Catarina, Florianopolis, Brazil

    PRINCIPAL INVESTIGATOR
  • Emilio Pizzichini, MD

    Universidade Federal de Santa Catarina, Florianopolis, Brazil

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER

Study Record Dates

First Submitted

September 12, 2005

First Posted

September 16, 2005

Study Start

September 1, 1999

Study Completion

September 1, 2001

Last Updated

December 16, 2005

Record last verified: 2003-10

Locations