Replication of the P04334 Asthma Trial in Healthcare Claims Data

Asthma Clinical Trial

Official title:

Replication of the P04334 Asthma Trial in Healthcare Claims Data

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04892758
• Other study ID #: 2018P002966-DUP-P04334
• Status: Completed
• Start date: October 29, 2020
• Est. completion date: June 11, 2021

Study information

• Verified date: July 2023
• Source: Brigham and Women's Hospital
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

Investigators are building an empirical evidence base for real world data through large-scale replication of randomized controlled trials. The investigators' goal is to understand for what types of clinical questions real world data analyses can be conducted with confidence and how to implement such studies.

Description:

This is a non-randomized, non-interventional study that is part of the RCT DUPLICATE initiative (www.rctduplicate.org) of the Brigham and Women's Hospital, Harvard Medical School. It is intended to replicate, as closely as is possible in healthcare insurance claims data, the trial listed below/above. Although many features of the trial cannot be directly replicated in healthcare claims, key design features, including outcomes, exposures, and inclusion/exclusion criteria, were selected to proxy those features from the trial. Randomization is also not replicable in healthcare claims data but was proxied through a statistical balancing of measured covariates according to standard practice. Investigators assume that the RCT provides the reference standard treatment effect estimate and that failure to replicate RCT findings is indicative of the inadequacy of the healthcare claims data for replication for a range of possible reasons and does not provide information on the validity of the original RCT finding.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 10288
• Est. completion date: June 11, 2021
• Est. primary completion date: June 11, 2021
• Gender: All
• Age group: 12 Years to 120 Years

Eligibility

Criteria:

Please see https://drive.google.com/drive/folders/1WD618wrywYjEaXzfLTcuK-VCcnb6b-gV for full code and algorithm definitions.

Eligible cohort entry dates:

Mometasone-furoate/formoterol was approved by FDA on June 24, 2010 for the management of asthma. The initial eligible cohort entry date was the first date after June 24, 2010 for both the databases investigated (IBM MarketScan, Optum CDM). The last date eligible as cohort entry date was the end of available data for IBM MarketScan and Optum

CDM. The following eligible cohort entry dates were included:

• Optum CDM: June 24, 2010 - June 30, 2020 (end of available data)

• IBM MarketScan: June 24, 2010- December 31, 2018 (end of available data)

Inclusion Criteria:

• =12 years of age

• A subject must have been using a medium daily dose of inhaled glucocorticosteroid (ICS) (either alone or in combination with a long-acting beta agonist (LABA)) for at least 12 weeks and must have been on a stable regimen (daily dose unchanged) for at least 2 weeks prior to Screening. Medium daily doses of ICS are defined as follows:

1. >500 to 1000 mcg beclomethasone chlorofluorocarbon (CFC)

2. >250 to 500 mcg beclomethasone hydrofluoroalkane (HFA)

3. >600 to 1000 mcg budesonide dry powder inhaler (DPI)

4. >1000 to 2000 mcg flunisolide

5. >250 to 500 mcg fluticasone

6. 400 mcg MF

7. >1000 to 2000 mcg triamcinolone acetonide

• Diagnosis of asthma

• A female subject of childbearing potential must have been using a medically acceptable, adequate form of birth control.

Exclusion Criteria:

• A subject who experiences an occurrence of any clinical deterioration of asthma that results in emergency treatment, hospitalization due to asthma, or treatment with additional, excluded asthma medication (other than SABA) as judged by the clinical investigator at any time from the Screening Visit up to and including the Baseline Visit

• Emergency room treatment for asthma deterioration requiring systemic corticosteroid therapy or hospitalization for management of airway obstruction within the 3 months before baseline

• A subject who is a smoker or ex-smoker and has smoked within the previous year or has had a cumulative smoking history >10 pack-years

• Visible evidence of oropharyngeal candidiasis at baseline or earlier

Related Conditions & MeSH terms

• Asthma

Intervention

Drug:
• Formoterol fumarate 10 mcg
Formoterol fumarate 10 mcg dispensing claim is used as the reference group.
• Mometasone furoate/formoterol fumarate combination MDI 200/10 mcg BID
Mometasone furoate/formoterol fumarate combination MDI 200/10 mcg BID dispensing claim is used as the exposure group.

Locations

Country	Name	City	State
United States	Brigham and Women's Hospital	Boston	Massachusetts

Sponsors (1)

Lead Sponsor	Collaborator
Brigham and Women's Hospital

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Time to first asthma exacerbation		Through study completion (a median of 134-147 days)