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AsthmaNCT01347060

Outcomes for Medicare Asthma Patients Taking Fluticasone Propionate/Salmeterol Xinafoate Combination Versus Inhaled Corticosteroids or Other Combination Therapy

An observational study of Asthma, run by GlaxoSmithKline.

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 healthcare utilization and costs in Medicare-eligible asthma patients (aged >65) who receive fluticasone propionate/salmeterol xinafoate combination or inhaled corticosteroids in a typical clinical practice using a retrospective observational cohort study design of large… Read more about this study

Who is it for?
Ages 65 years and older
Conditions the study is for
Asthma
What is being tested?
fluticasone propionate/salmeterol xinafoate combination and inhaled corticosteroids
How many people
17,448 participants
Where
No sites listed yet
Study dates
Jul 2009to Apr 2010
Phase
Observational
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 65 years and older
  • All sexes
  • No healthy volunteers
  • Older adult

Study population: Medicare-eligible subjects age 65 years and older with a diagnosis of asthma being treated with an inhaled corticosteroid

Who may be able to join

  • Subjects with asthma as determined by ICD-9 codes and asthma drug use
  • at least 65 years of age
  • prescription for an inhaled corticosteroid

Who cannot join

  • a diagnosis of chronic obstructive pulmonary disease or
  • a prescription for a chronic obstructive pulmonary disease treatment

About this study

The objective of this study is to compare healthcare utilization and costs in Medicare-eligible asthma patients (aged >65) who receive fluticasone propionate/salmeterol xinafoate combination or inhaled corticosteroids in a typical clinical practice using a retrospective observational cohort study design of large managed care database. Outcomes on interest include asthma related severe exacerbations defined as asthma related emergency department visits, hospitalizations or combined emergency department/hospitalization. Other outcomes of interest include use of albuterol, oral corticosteroids and overall asthma related costs. Outcomes of interest will be compared between the two treatment cohorts (fluticasone propionate/salmeterol xinafoate combination or inhaled corticosteroids). Dichotomous outcomes (emergency visits, hospitalizations etc) will be compared using Cox regression hazards analysis assessing time to first event for each asthma related endpoint adjusting for differences in baseline demographics such as age, gender, previous asthma medication use, co morbidities, costs, and plan demographics. Total asthma related costs will also be compared using generalized linear models adjusting for baseline differences.

Conditions
Asthma
Being tested
fluticasone propionate/salmeterol xinafoate combination, inhaled corticosteroids
Keywords
Asthma, treatment, Advair and inhaled corticosteroids, Medicare, Outcomes, costs
Medical subject headings
Asthma

What participants receive

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

  • fluticasone propionate/salmeterol xinafoate combinationDrug

    Also called Advair (TM)

    Fluticasone propionate/salmeterol xinafoate combination for asthma, all doses (100mcg/50mcg, 250 mcg/50mcg and 500 mcg/50mcg)

  • inhaled corticosteroidsDrug

    Inhaled corticosteroids: beclomethasone dipropionte, mometasone, fluticasone propionate, budesonide, and flunisolide

Study groups in NCT01347060
Study groupRoleWhat they receive
Medicare-eligible subjects with asthmaAsthma subjects at least 65 years of age enrolled in a large Medicare managed care health plan.
Receives: Drug: fluticasone propionate/salmeterol xinafoate combination; Drug: inhaled corticosteroids

What is being measured

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

  1. Mean Number of Post-index Asthma-related Events Measured Using Medical and Pharmacy Claims

    Asthma-related events were defined as events with any primary ICD-9 code of 493.xx for hospitalizations, emergency department visits, and combined hospitalization/emergency department visits. The post-index period is defined as 3-12 months after either the first administration of fluticasone propionate and salmetrol or inhaled corticosteroids. Medical and pharmacy claims are recorded healthcare encounters in a large managed care administrative insurance database.

    Measured: Up to 7 years from July 1, 2001 to June 30, 2008

Secondary outcomes (2)
  1. Mean Asthma-related Costs in the Post-index Period

    Asthma-related costs were calculated as pharmacy costs, medical costs, and total asthma (pharmacy plus medical) costs. Medical costs were made up of asthma-related visits, hospitalizations, emergency department visits, and medical office visits. Pharmacy costs were comprised of all asthma-related medications used during the follow-up period. Medical services were identified by place of service and PharMetrics-specific confinement codes. Prescriptions were counted by 30-day fills, with fills less than 30 days rounded up to indicate one fill.

    Measured: Up to 7 years from July 1, 2001 to June 30, 2008

  2. Mean Number of Albuterol (Short-acting β-Agonists) Canisters Dispensed Per Pharmacy Claim Per Participant

    The number of albuterol canisters dispensed was used as a surrogate marker of asthma symptoms.

    Measured: Up to 7 years from July 1, 2001 to June 30, 2008

Timeline

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

  1. First posted4 May 2011 (estimated)
  2. Study startJul 2009
  3. Primary completionApr 2010
  4. Study completionApr 2010

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
17,448 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01347060
Sponsor's protocol ID
112605
Status last verified
May 2017
First submitted
10 Jun 2010
Last updated
25 May 2017
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Asthma, run by GlaxoSmithKline.

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 3 inclusion and 2 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 25 May 2017. Status can change between updates, so confirm with the study contact before making plans.

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?

Yes. Results are posted in the registry (first posted 1 Jun 2011). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Mean Number of Post-index Asthma-related Events Measured Using Medical and Pharmacy Claims (time frame: Up to 7 years from July 1, 2001 to June 30, 2008). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 25 May 2017.

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