NCT00441675

Brief Summary

The CATO population is a very well documented population during two years. During this study patients were treated according to the CATO algorithm, after that patient were treated according to the Dutch national (GINA derived) guidelines up to 6 years of follow-up. The purpose of this prospective follow-up study is to understand the long-term effects of treatment. Therefore the measurements done at baseline (CATO part 1) are repeated after 6 years in this CATO-population (CATO follow-up).

Trial Health

87
On Track

Trial Health Score

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

Enrollment
137

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jan 2007

Shorter than P25 for all trials

Geographic Reach
1 country

15 active sites

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

January 1, 2007

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

February 28, 2007

Completed
1 day until next milestone

First Posted

Study publicly available on registry

March 1, 2007

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2007

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2007

Completed
Last Updated

March 19, 2012

Status Verified

June 1, 2011

Enrollment Period

9 months

First QC Date

February 28, 2007

Last Update Submit

March 15, 2012

Conditions

Keywords

AdolescentsAsthmalong-term follow-upsymptomsbronchial hyperresponsiveness

Outcome Measures

Primary Outcomes (1)

  • Comparison of the mean annual in FEV1 (% predicted) between randomisation (CATO visit 2) and the current visit 2 between both treatment arms.

    6 years

Secondary Outcomes (5)

  • Comparison of both treatment arms (BHR strategy versus reference strategy):• Lung function FVC and PEFR measured in the clinic between randomisation ( and current visit 2 expressed as the mean annual change of % predicted

    6 years

  • • Percentage asthma symptom free days during 6 weeks of this extension study • Bronchial hyperresponsiveness, determined with PD20 methacholine between randomisation and current visit 2

    6 years

  • Growth rate between randomisation and current visit 2 (expressed as SD-scores)•frequency of asthma exacerbations between randomisation and current visit 2

    6 years

  • • Height at current visit 1 or at last measurement at which subject has reached their final height.• Cumulative ICS doses between randomisation and current visit 2 (if this can be achieved with sufficient reliability)

    6 years

  • Quality of Life (Juniper questionnaire)

    6 weeks

Study Arms (2)

Salmeterol/Fluticasone

Previous Salmeterol/Fluticasone treatment

Procedure: Symptom ScoreProcedure: Symptom Score and PD20

Fluticasone

Previous Fluticasone propionate treatment

Procedure: Symptom ScoreProcedure: Symptom Score and PD20

Interventions

Symptom ScorePROCEDURE

Symptom Score

FluticasoneSalmeterol/Fluticasone

Symptom Score and PD20

FluticasoneSalmeterol/Fluticasone

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

All patients randomized in the CATO study (SAS30018) (total of 210) were asked to participate in the follow up study. Any subject who gave informed consent to participate in the CATO study, and met all the criteria required for randomisation into the clinical study took part in this follow up study.

You may qualify if:

  • Any subject who has given informed consent to participate in the CATO study, and has met all the criteria required for randomisation into the clinical study may take part in this follow up study
  • Under the age of 18 years Subjects and both parent(s)/guardian(s) who have given written informed consent to participate in the study
  • Subjects from 18 years and older who have given written informed consent to participate in the study

You may not qualify if:

  • Experienced an acute asthma exacerbation requiring emergency room treatment within 4 weeks or hospitalisation within 4 weeks of visit 1
  • Any use of oral/parenteral or depot corticosteroid within 4 weeks of visit 1
  • Subjects who are pregnant (a pregnancy test can be performed at the investigator's discretion)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (15)

GSK Investigational Site

Alkmaar, 1815 JD, Netherlands

Location

GSK Investigational Site

Almere Stad, 1315 RA, Netherlands

Location

GSK Investigational Site

Amsterdam, 1081 HV, Netherlands

Location

GSK Investigational Site

Amsterdam, 1105 AZ, Netherlands

Location

GSK Investigational Site

Breda, 4819 EV, Netherlands

Location

GSK Investigational Site

Groningen, 9713 GZ, Netherlands

Location

GSK Investigational Site

Hilversum, 1213 VX, Netherlands

Location

GSK Investigational Site

Leiden, 2333 ZA, Netherlands

Location

GSK Investigational Site

Maastricht, 6229 HX, Netherlands

Location

GSK Investigational Site

Rotterdam, 3015 GJ, Netherlands

Location

GSK Investigational Site

Sittard, 6131 BK, Netherlands

Location

GSK Investigational Site

The Hague, 2566 MJ, Netherlands

Location

GSK Investigational Site

Utrecht, 3584 EA, Netherlands

Location

GSK Investigational Site

Veldhoven, 5504 DB, Netherlands

Location

GSK Investigational Site

Zwolle, 8025 AB, Netherlands

Location

MeSH Terms

Conditions

AsthmaBronchial Hyperreactivity

Condition Hierarchy (Ancestors)

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

Study Officials

  • GSK Clinical Trials

    GlaxoSmithKline

    STUDY DIRECTOR

Study Design

Study Type
observational
Observational Model
CASE ONLY
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 28, 2007

First Posted

March 1, 2007

Study Start

January 1, 2007

Primary Completion

October 1, 2007

Study Completion

October 1, 2007

Last Updated

March 19, 2012

Record last verified: 2011-06

Locations