Replication of the D58 Asthma Trial in Healthcare Claims Data
1 other identifier
observational
66,581
1 country
1
Brief 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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Oct 2020
Shorter than P25 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
October 29, 2020
CompletedFirst Submitted
Initial submission to the registry
May 14, 2021
CompletedFirst Posted
Study publicly available on registry
May 19, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 11, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
June 11, 2021
CompletedJuly 27, 2023
July 1, 2023
8 months
May 14, 2021
July 25, 2023
Conditions
Outcome Measures
Primary Outcomes (1)
First serious asthma-related event
A composite of adjudicated death, intubation, and hospitalization
Through study completion (a median of 88-116 days)
Secondary Outcomes (3)
Asthma-related hospitalization
Through study completion (a median of 88-116 days)
Asthma-related intubation
Through study completion (a median of 88-116 days)
Asthma-related death
Through study completion (a median of 88-116 days)
Study Arms (2)
Budesonide
Reference Group
Budesonide-formoterol
Exposure Group
Interventions
Budesonide-Formoterol dispensing claim is used as the exposure group.
Eligibility Criteria
This study will involve a new user, parallel group, propensity score-matched, retrospective cohort design comparing budesonide-formoterol versus budesonide alone. The patients will be required to have continuous enrollment during a baseline period of 180 days before initiation of budesonide-formoterol or budesonide.
You may qualify if:
- ≥12 years of age
- Documented clinical diagnosis of asthma for ≥1 year prior to randomization
- History of at least one asthma exacerbation in the previous year (but none in the 4 weeks prior to randomization. An asthma exacerbation was defined as an event requiring treatment with systemic corticosteroids or requiring hospitalization (i.e. an inpatient stay or \>24-hour stay in the observation area of an emergency room or local equivalent)
- Receiving either:
- A stable dose of ICS alone or in combination with a LABA, leukotriene receptor antagonist or other maintenance therapy/therapies for ≥4 weeks prior to randomization (any patient maintained on a stable high-dose ICS with or without a LABA or LTRA or other maintenance therapy/therapies was required to have an ACQ6 total score of \<1.5 at screening) OR
- A stable dose of LTRA or xanthine monotherapy (for ≥4 weeks prior to randomization) or daily SABA (in the 4 weeks before randomization but ≤8 puffs a day on two consecutive days, or ≥25 puffs in one day, in the 7 days prior to screening). Patients on LTRAs, xanthines, or daily SABA, were eligible only if they recorded an ACQ6 total score of ≥1.5, and in the investigator's clinical judgment, the patient's asthma severity could have justified treatment with ICS or ICS/LABA combination
You may not qualify if:
- A history of life-threatening asthma (defined as an asthma episode that required intubation and/or was associated with hypercapnia requiring non-invasive ventilatory support)
- One of the following:
- Any asthma exacerbation requiring systemic corticosteroids within 4 weeks prior to randomization OR
- \>4 separate exacerbations OR
- \>2 hospitalizations (an inpatient stay or \>24- hour stay in the observation area of an emergency room or local equivalent) due to asthma in the previous year
- Received systemic corticosteroids for any reason in the 4 weeks prior to randomization
- Had an ongoing asthma exacerbation requiring systemic corticosteroids
- Concurrent respiratory disease (chronic obstructive pulmonary disease, chronic bronchitis, emphysema, idiopathic pulmonary fibrosis, bronchiectasis, and/or any pulmonary disease)
- A smoking history of \>10 pack-years
- Respiratory infection or other viral/bacterial illness
- Pregnancy (current/planned) and lactation
- Malignancy (with the exception of basal cell carcinoma) within the 5 years prior to study commencement
- Omalizumab or any other monoclonal/polyclonal antibody use in the 6 months prior to randomization
- Concomitant β-blocker use
- Drug/alcohol abuse
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Brigham and Women's Hospital
Boston, Massachusetts, 02120, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Shirley Wang, PhD, ScM
Brigham and Women's Hospital
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- RETROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Assistant Professor
Study Record Dates
First Submitted
May 14, 2021
First Posted
May 19, 2021
Study Start
October 29, 2020
Primary Completion
June 11, 2021
Study Completion
June 11, 2021
Last Updated
July 27, 2023
Record last verified: 2023-07