Real-world Effectiveness of Combination Therapy in Asthma
A Retrospective Evaluation of the Effectiveness of Fixed-dose Combination Inhaled Corticosteroid /. Long-acting Beta Agonist (ICS/LABA) Therapy in the Management of Asthma in a Representative UK Primary Care Population
1 other identifier
observational
815,377
1 country
1
Brief Summary
This study will evaluate and compare the effectiveness of asthma management in patients with evidence of persistent asthma following a switch in asthma therapy to combination inhaled glucocorticosteroid (ICS) / long-acting bronchodilator (LABA) therapy as either: fixed-combination fluticasone propionate / salmeterol (FP/SAL; Seretide®) via pressurised metered-dose inhaler (pMDI) or dry-powder inhaler (DPI) plus as-needed (prn) reliever therapy (salbutamol as DPI, BAI or pMDI), or fixed-combination budesonide / formoterol (BUD/FOR; Symbicort®) via DPI plus prn reliever therapy (salbutamol as DPI, BAI or pMDI or bricanyl as DPI). The final analysis plan will define exact comparators and age groups to be studied after reviewing baseline data.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Jan 2001
Longer than P75 for all trials
1 active site
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, 2001
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2007
CompletedStudy Completion
Last participant's last visit for all outcomes
February 1, 2010
CompletedFirst Submitted
Initial submission to the registry
June 9, 2010
CompletedFirst Posted
Study publicly available on registry
June 10, 2010
CompletedJune 10, 2010
June 1, 2010
6.4 years
June 9, 2010
June 9, 2010
Conditions
Keywords
Outcome Measures
Primary Outcomes (4)
Composite proxy for asthma control
* No recorded hospital attendance for asthma, including admission, Accident \& Emergency (A\&E) attendance, out-of-hours attendance, or Out-Patient Department (OPD) attendance, AND * No prescriptions for oral steroids, AND * No GP consultations, hospital admissions or A\&E attendance for lower respiratory tract infections (LRTI) requiring antibiotics.
One-year outcome period
Exacerbations (total and rate ratio)
* Unscheduled hospital admissions / A\&E attendance for asthma, AND/OR * Use of oral steroids.
One-year outcome period
GOAL Total Control (proxy measure to replicate total control as measured in the GOAL RCT in a real world patient population
* No day-time symptoms; * No night-time symptoms; * No exacerbations; * No treatment-related adverse events * PEF ≥80% predicted = "normal" * No SABA use
6 months (sensitivity analysis at 8 weeks)
GOAL exacerbations
Absence of: * Documented episodes of hospitalisations AND/OR * Exacerbation treatment - oral steroids or antibiotics for asthma over one year
One year
Secondary Outcomes (4)
Compliance with ICS/LABA combination therapy
One year outcome period
Compliance with ICS as part of ICS/LABA combination therapy
One-year outcome period
Treatment success
One-year outcome period
SABA dosage
One-year outcome period
Study Arms (6)
IPDA FP/SAL DPI
Patients who were on inhaled corticosteroid therapy during the baseline year (any ICS therapy) who, at an index prescription date, initiated combination therapy as FP/SAL DPI at ≥twice the equivalent BDP-equivalent dose
IPDA FP/SAL MDI
Patients who were on inhaled corticosteroid therapy during the baseline year (any ICS therapy) who, at an index prescription date, initiated combination therapy as FP/SAL MDI at ≥twice the equivalent BDP-equivalent dose
IPDI FP/SAL DPI
Patients who were on inhaled corticosteroid therapy during the baseline year (any ICS therapy) who, at an index prescription date, initiated combination therapy as FP/SAL DPI at equivalent BDP-equivalent dose
IPDI BUD/FOR DPI
Patients who were on inhaled corticosteroid therapy during the baseline year (any ICS therapy) who, at an index prescription date, initiated combination therapy as BUD/FOR DPI at equivalent BDP-equivalent dose
IPDI FP/SAL MDI
Patients who were on inhaled corticosteroid therapy during the baseline year (any ICS therapy) who, at an index prescription date, initiated combination therapy as FP/SAL MDI at equivalent BDP-equivalent dose
IPDA BUD/FOR DPI
Patients who were on inhaled corticosteroid therapy during the baseline year (any ICS therapy) who, at an index prescription date, initiated combination therapy as BUD/FOR DPI at ≥twice the equivalent BDP-equivalent dose
Interventions
Prescribed at the same BDP-equivalent dose as baseline ICS
Prescribed at the same BDP-equivalent dose as baseline ICS
Prescribed at the same BDP-equivalent dose as baseline ICS
Prescribed at ≥twice BDP-equivalent dose as baseline ICS
Prescribed at ≥twice BDP-equivalent dose as baseline ICS
Eligibility Criteria
Primary care asthma patients receiving ICS therapy (any of BDP, extrafine HFA-BDP, BUD or FP as pMDI, BAI or DPI) plus as needed SABA reliever therapy who underwent a change in asthma therapy to combination ICS/LABA therapy as FP/SAL (MDI or DPI) or BUD/FOR (DPI) at the same or at least twice the BDP-equivalent dose of ICS prescribed during baseline.
You may qualify if:
- Aged: 4-80 years: Paediatric cohort (aged 4-11 years); Adult cohort (aged 12-69 years); Elderly cohort (aged 70-80 years.
- Evidence of asthma: i.e. a diagnostic code of asthma or ≥2 prescriptions for asthma at different points in time during the prior year, including one ICS prescription.
- Be on current asthma therapy: i.e. ≥1 asthma prescriptions in the prior year, and at least 1 other asthma prescription during the same period.
- Have at least one year of up-to-standard (UTS) baseline data (prior to the IPD) and at least one year of UTS outcome data (following the IPD).
You may not qualify if:
- Diagnostic read code for chronic respiratory disease (including COPD) at any time
- On maintenance oral steroid therapy at baseline
- Any patients receiving a combination inhaler in addition to their separate ICS inhaler in the baseline year.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Research in Real-Life Ltdlead
- Mundipharma Research Limitedcollaborator
Study Sites (1)
General Practice Research Database
London, SW8 5NQ, United Kingdom
Related Publications (5)
Herland K, Akselsen JP, Skjonsberg OH, Bjermer L. How representative are clinical study patients with asthma or COPD for a larger "real life" population of patients with obstructive lung disease? Respir Med. 2005 Jan;99(1):11-9. doi: 10.1016/j.rmed.2004.03.026.
PMID: 15672843BACKGROUNDTravers J, Marsh S, Caldwell B, Williams M, Aldington S, Weatherall M, Shirtcliffe P, Beasley R. External validity of randomized controlled trials in COPD. Respir Med. 2007 Jun;101(6):1313-20. doi: 10.1016/j.rmed.2006.10.011. Epub 2006 Nov 17.
PMID: 17113277BACKGROUNDAppleton SL, Adams RJ, Wilson DH, Taylor AW, Ruffin RE; North West Adelaide Cohort Health Study Team. Spirometric criteria for asthma: adding further evidence to the debate. J Allergy Clin Immunol. 2005 Nov;116(5):976-82. doi: 10.1016/j.jaci.2005.08.034.
PMID: 16275363BACKGROUNDBateman ED, Boushey HA, Bousquet J, Busse WW, Clark TJ, Pauwels RA, Pedersen SE; GOAL Investigators Group. Can guideline-defined asthma control be achieved? The Gaining Optimal Asthma ControL study. Am J Respir Crit Care Med. 2004 Oct 15;170(8):836-44. doi: 10.1164/rccm.200401-033OC. Epub 2004 Jul 15.
PMID: 15256389BACKGROUNDBritish Thoracic Society (BTS) Scottish Intercollegiate Guidelines Network (SIGN) 101. British Guideline on the Management of Asthma: a national clinical guideline. 2008. Available online at: www.sign.ac.uk/guidelines/fulltext/101/index.html
BACKGROUND
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
David Price, Prof. MD
Company Director
- STUDY DIRECTOR
Alison Chisholm, MSc
Research Project Director
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- RETROSPECTIVE
- Sponsor Type
- NETWORK
Study Record Dates
First Submitted
June 9, 2010
First Posted
June 10, 2010
Study Start
January 1, 2001
Primary Completion
June 1, 2007
Study Completion
February 1, 2010
Last Updated
June 10, 2010
Record last verified: 2010-06