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Chronic Obstructive Pulmonary DiseaseQvarCOPDNCT01141452

Real-life Effectiveness and Cost-effectiveness of Qvar Versus FP and BDP in the Management of COPD

An observational study of Chronic Obstructive Pulmonary Disease, run by Research in Real-Life Ltd at 1 site in United Kingdom.

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 objective of this study is to compare the effectiveness, cost-effectiveness and direct healthcare costs of managing chronic obstructive pulmonary disease (COPD) in primary care patients with evidence of COPD who either initiate inhaled corticosteroid (ICS) therapy, or have an increase in their ICS dose, as… Read more about this study

Who is it for?
Ages 40 to 80 years
Conditions the study is for
Chronic Obstructive Pulmonary Disease
What is being tested?
Extra-fine hydrofluoroalkane beclomethasone MDI, Chlorofluorocarbon beclomethasone metered dose inhaler and Fluticasone propionate metred dose inhaler
How many people
815,377 participants
Where
1 siteUnited Kingdom
Study dates
Jan 2001to Jul 2007
Phase
Observational
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 40 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Primary care COPD patients who at an index prescription date either initiated ICS therapy as extrafine HFA-BDP, CFC-BDP or FP via MDI or had an increase in baseline BDP-equivalent ICS dose the index data as extrafine HFA-BDP, CFC-BDP or FP via MDI

Who may be able to join

  • Aged ≥40 years at index prescription date
  • COPD diagnosis:
  • diagnostic code, and
  • ≥2 prescriptions for COPD therapy in baseline year (at different points in time)
  • For the ICS increase cohort (i.e. IPDA) ≥1 of these prescriptions must be for ICS therapy.
  • Commence ICS therapy at any time (even if before COPD diagnosis is made)

Who cannot join

  • A diagnostic read code for any other chronic respiratory disease (except asthma)

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • General Practice Research Database

    London, London, SW8 5NQ

Other trials in United Kingdom

About this study

Official title: Retrospective, Real-life Evaluation of the Effectiveness, Cost-effectiveness and Direct Healthcare Costs of Qvar Pressurised Metered-dose Inhaler (pMDI) Compared With Beclometasone Dipropionate pMDI and Fluticasone pMDI in the Management of Chronic Obstructive Pulmonary Disease (COPD) in a Representative UK Primary Care Patient Population

The objective of this study is to compare the effectiveness, cost-effectiveness and direct healthcare costs of managing chronic obstructive pulmonary disease (COPD) in primary care patients with evidence of COPD who either initiate inhaled corticosteroid (ICS) therapy, or have an increase in their ICS dose, as hydrofluoroalkane (HFA) beclometasone dipropionate (BDP) (hereafter Qvar®), CFC-BDP (hereafter BDP) and fluticasone propionate (FP) via pressurised metered-dose inhalers.

Read the detailed description

Current asthma guidelines in the UK are underpinned by evidence derived from randomised controlled trials (RCTs). Although RCT data are considered the gold standard, patients recruited to asthma RCTs are estimated to represent less than 10% of the UK's asthma population. The poor representation of the asthma population is due to a number of factors, such as tightly-controlled inclusion criteria for RCTs. There is, therefore, a need for more representative RCTs and real-life observational studies to inform existing guidelines and help optimise asthma outcomes.

Short randomised trials have shown that Qvar is at least as effective as FP pMDI and as BDP pMDI at half the prescribed dose in patients with asthma. There is also evidence to suggest that, in adults, HFA formulation as used by Qvar (featuring BDP in solution rather than suspension) may achieve 10-fold higher deposition compared with CFC-BDP.4 Furthermore, deposition in the peripheral regions is higher compared with CFC-BDP and the fine-particle formulation also offers greater tolerance of poor co-ordination of breathing and inhaler actuation, resulting in lower oro-pharyngeal deposition compared with CFC-BDP.

Evidence of the efficacy of ICS monotherapy in COPD remains mixed at this time. While Qvar and ICS monotherapy use in the treatment of COPD is currently off-label, it occurs in clinical practice in two common scenarios:

  1. before a diagnosis of COPD is made
  2. unlicensed use as monotherapy, or in combination with long-acting bronchodilators

The study hypothesis, therefore, is that Qvar treatment in COPD may be associated with improved disease management and control (as assessed by effectiveness, cost-effectiveness and direct healthcare costs of managing COPD) compared with other commonly used ICS therapies, namely BPD and FP, by virtue of its improved deposition throughout the lungs and the small airways.

Being tested
Extra-fine hydrofluoroalkane beclomethasone MDI, Chlorofluorocarbon beclomethasone metered dose inhaler, Fluticasone propionate metred dose inhaler, Hydrofluoroalkane beclomethasone metred dose inhaler, Chlorofluorocarbon beclomethasone dipropionate
Keywords
chronic obstructive pulmonary disease, inhaled corticosteroid, increase, initiate, exacerbations, treatment success
Medical subject headings
Pulmonary Disease, Chronic Obstructive

What participants receive

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

  • Extra-fine hydrofluoroalkane beclomethasone MDIDrug

    Also called Qvar®

    Step-up in baseline BDP-equivalent ICS dose

  • Chlorofluorocarbon beclomethasone metered dose inhalerDrug

    Step-up in baseline BDP-equivalent ICS dose

  • Fluticasone propionate metred dose inhalerDrug

    Step-up in baseline BDP-equivalent ICS dose

  • Fluticasone propionate metred dose inhalerDrug

    Initiation of ICS therapy

  • Hydrofluoroalkane beclomethasone metred dose inhalerDrug

    Also called Qvar®

    Initiation of ICS therapy

  • Chlorofluorocarbon beclomethasone dipropionateDrug

    Initiation of ICS therapy

Study groups in NCT01141452
Study groupRoleWhat they receive
IPDA FP MDIPatients who were on inhaled corticosteroid therapy as part of their baseline therapy (any ICS therapy) who, at an index prescription date, stepped-up ICS dose as fluticasone via metered dose inhaler
Receives: Drug: Fluticasone propionate metred dose inhaler
IPDA HFA-BDP MDIPatients who were on inhaled corticosteroid therapy as part of their baseline therapy (any ICS therapy) who, at an index prescription date, stepped-up ICS dose as extra-fine hydrofluoroalkane beclomethasone dipropionate via metered dose inhaler
Receives: Drug: Extra-fine hydrofluoroalkane beclomethasone MDI
IPDA CFC-BDP MDIPatients who were on inhaled corticosteroid therapy as part of their baseline therapy (any ICS therapy) who, at an index prescription date, stepped-up ICS dose as chlorofluorocarbon beclomethasone dipropionate via metered dose inhaler
Receives: Drug: Chlorofluorocarbon beclomethasone metered dose inhaler
IPDI CFC-BDP MDIPatients who were not receiving inhaled corticosteroid therapy as part of their baseline therapy but who, at an index prescription date, initiated ICS as chlorofluorocarbon beclomethasone dipropionate via metered dose inhaler
Receives: Drug: Chlorofluorocarbon beclomethasone dipropionate
IPDI HFA-BDP MDIPatients who were not receiving inhaled corticosteroid therapy as part of their baseline therapy but who, at an index prescription date, initiated ICS as hydrofluoroalkane beclomethasone dipropionate via metered dose inhaler
Receives: Drug: Hydrofluoroalkane beclomethasone metred dose inhaler
IPDI FP MDIPatients who were not receiving inhaled corticosteroid therapy as part of their baseline therapy but who, at an index prescription date, initiated ICS as fluticasone propionate via metered dose inhaler
Receives: Drug: Fluticasone propionate metred dose inhaler

What is being measured

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

  1. Total number of exacerbations; exacerbation rate ratio; time to first after IPD

    Where exacerbations are defined as:

    • Unscheduled hospital admissions / A\&E attendances:*
    • For COPD (definite code) and
    • Lower respiratory tract infections (LRTI) treated with antibiotics
    • Acute use of oral steroids
    • Antibiotics use with a lower respiratory read code within a ±5-day window

    Measured: Two-year outcome period

  2. COPD treatment success

    • No recorded hospital attendance for COPD or respiratory related events (i.e. with a lower respiratory read code), including:
    • Admission
    • A\&E attendance
    • Out of hours attendance
    • No exacerbations of COPD ("definite" plus "possible" prescriptions as defined above)
    • No consultations, hospital admissions or A\&E attendance for lower respiratory tract infections (LRTI) requiring antibiotics.

    Measured: Two-year outcome period

Secondary outcomes (10)
  1. COPD treatment success factoring in change in therapy

    Defined as absence of:

    • Exacerbations; and/or
    • Increase in dose of inhaled steroid; and/or
    • Change in delivery device, and/or
    • Change in ICS
    • Use of additional therapy not received in baseline year, split by:
    • LABA
    • Theophylline
    • LTRAs.

    Measured: Two-year outcome period

  2. COPD treatment success factoring in change in therapy unrelated to cost savings

    Defined as absence of:

    • Exacerbations; and/or
    • Increase in dose of inhaled steroid; and/or
    • Use of additional therapy not received in baseline year, split by:
    • LABA
    • Theophylline
    • LTRAs.

    Measured: Two-year outcome period

  3. Change in ICS dosing

    Proportion of patients who:

    • Remained on the same ICS (and/or combination therapy) throughout the outcome period
    • Remained on the same ICS dose throughout the outcome period, but had another therapy added
    • Received an ICS dose increase and / or therapy added to their ICS during the outcome period.

    Measured: Two-year outcome period

  4. Rate of hospitalisations

    Where hospitalisations are defined as

    • Admissions and A\&E coded as:
    • lower respiratory-related, or
    • for COPD
    • Admissions and A\&E coded as:
    • lower respiratory-related, or
    • for COPD
    • admission attendance occurring within a ±7 day window of an LRTI treated with antibiotics.

    Measured: Two-year outcomes

  5. SABA usage

    Average SABA daily dose, categorised as: 0mcg, >0-100mcg, >100-200mcg, >200-400mcg, >400-800mcg, >800mcg.

    Measured: Two-year outcome

  6. Mortality

    • Respiratory mortality
    • All-cause mortality

    Measured: Two-years

  7. Incidence of pneumonia

    • Unconfirmed (i.e. all unique patients with codes for pneumonia) AND
    • Confirmed:
    • chest X-ray within a month of a pneumonia diagnosis, or
    • hospitalisation within a month of a pneumonia diagnosis

    Measured: Two-year outcome

  8. Incremental cost effectiveness ratio

    Difference in costs (HFA-BDP the comparator) over difference in effectiveness (using primary outcome of exacerbations)

    Measured: Two-year outcome

  9. Cost of total healthcare treatment

    Costs for each intervention:

    • including ICS costs
    • excluding ICS costs

    Measured: Two-year outcome

  10. Costs for COPD treatment

    Costs of COPD treatment:

    • including ICS costs
    • excluding ICS costs

    Measured: Two-year outcome

Timeline

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

  1. First posted10 Jun 2010 (estimated)
  2. Study startJan 2001
  3. Primary completionJun 2007
  4. Study completionJul 2007

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Retrospective
Enrolment
815,377 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01141452
Sponsor's protocol ID
BA5
Acronym
QvarCOPD
Status last verified
Mar 2011
First submitted
9 Jun 2010
Last updated
8 Mar 2011
Results posted
No
Data monitoring committee
Yes

Publications

  • 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.

    PubMed 15672843
  • Travers 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.

    PubMed 17113277
  • Appleton 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.

    PubMed 16275363
  • Leach CL, Davidson PJ, Boudreau RJ. Improved airway targeting with the CFC-free HFA-beclomethasone metered-dose inhaler compared with CFC-beclomethasone. Eur Respir J. 1998 Dec;12(6):1346-53. doi: 10.1183/09031936.98.12061346.

    PubMed 9877489
  • Barber JA, Thompson SG. Analysis and interpretation of cost data in randomised controlled trials: review of published studies. BMJ. 1998 Oct 31;317(7167):1195-200. doi: 10.1136/bmj.317.7167.1195.

    PubMed 9794854

Questions about this trial

What is this clinical trial studying?

An observational study of Chronic Obstructive Pulmonary Disease, run by Research in Real-Life Ltd at 1 site in United Kingdom.

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 6 inclusion and 1 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 8 Mar 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 United Kingdom. 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.

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?

Total number of exacerbations; exacerbation rate ratio; time to first after IPD (time frame: Two-year outcome period). 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 NCT01141452, which also lists 5 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 8 Mar 2011.

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