Study of Asthma Phenotypes and Pharmacogenomic Interactions by Race-Ethnicity (SAPPHIRE)
SAPPHIRE
1 other identifier
interventional
362
1 country
1
Brief Summary
Inhaled corticosteroids (ICS) are considered first-line treatment for persistent asthma, yet little is known about the genetic factors that influence response to this therapy. This study seeks to quantify response to ICS therapy in African American and white patients, as well as look for genetic markers that predict treatment response.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable asthma
Started Oct 2007
Longer than P75 for not_applicable asthma
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 1, 2007
CompletedFirst Submitted
Initial submission to the registry
June 11, 2010
CompletedFirst Posted
Study publicly available on registry
June 14, 2010
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 1, 2017
CompletedStudy Completion
Last participant's last visit for all outcomes
March 11, 2019
CompletedResults Posted
Study results publicly available
April 2, 2019
CompletedApril 2, 2019
March 1, 2019
9.3 years
June 11, 2010
January 10, 2019
March 11, 2019
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Change in Asthma Control Test Score
Patients will be treated with 6 weeks of inhaled beclomethasone diproprionate (BD) treatment and the change in Asthma Control Test (ACT) quantified. The composite ACT score measured at each time point ranged from 5-25 (with higher scores reflective of better asthma control). Therefore, the absolute change in ACT score from before to after treatment could range from -20 to +20.
6 weeks
Study Arms (1)
beclomethasone dipropionate (BD)
OTHERPatients who meet eligibility criteria will be treated with 6 weeks of beclomethasone dipropionate to assess change in pulmonary function and asthma control. These change will be used as phenotypes in a genetic association study. There is no placebo group.
Interventions
160 mcg twice a day (320 mcg per day total)
Eligibility Criteria
You may qualify if:
- Age 12-56 years
- Physician diagnosis of asthma (identified by using encounter data prior to screening and by the survey administered at the clinic visit)
- Bronchodilator reversibility on pulmonary function testing (i.e., improvement in baseline FEV1 of \>12%)
- African-American/Black self-reported race-ethnicity
You may not qualify if:
- Smoking in the preceding year or \<10 pack-year smoking history total
- Pregnant at the time of enrollment or intending to get pregnant during the 6-week treatment period
- Oral or inhaled corticosteroid use in the 4 weeks preceding enrollment
- Prior diagnosis of chronic obstructive pulmonary disease or emphysema
- Prior diagnosis of congestive heart failure
- Self-reported race not African-American/Black or Hispanic ethnicity (these groups could be included in Replication/Validation group)
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Henry Ford Health System
Detroit, Michigan, 48202, United States
Related Publications (1)
Levin AM, Gui H, Hernandez-Pacheco N, Yang M, Xiao S, Yang JJ, Hochstadt S, Barczak AJ, Eckalbar WL, Rynkowski D, Samedy LA, Kwok PY, Pino-Yanes M, Erle DJ, Lanfear DE, Burchard EG, Williams LK. Integrative approach identifies corticosteroid response variant in diverse populations with asthma. J Allergy Clin Immunol. 2019 May;143(5):1791-1802. doi: 10.1016/j.jaci.2018.09.034. Epub 2018 Oct 24.
PMID: 30367910RESULT
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- L. Keoki Williams, MD, MPH
- Organization
- Center for Individualized and Genomic Medicine Research, Henry Ford Health System
Study Officials
- PRINCIPAL INVESTIGATOR
L. Keoki Williams, MD, MPH
Henry Ford Health System
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- BASIC SCIENCE
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Senior Scientist
Study Record Dates
First Submitted
June 11, 2010
First Posted
June 14, 2010
Study Start
October 1, 2007
Primary Completion
February 1, 2017
Study Completion
March 11, 2019
Last Updated
April 2, 2019
Results First Posted
April 2, 2019
Record last verified: 2019-03
Data Sharing
- IPD Sharing
- Will not share