98,278
Participants
Start Date
September 22, 2020
Primary Completion Date
August 30, 2021
Study Completion Date
August 30, 2021
Tiotropium
Tiotropium dispensing claim is used as the reference group.
salmeterol-fluticasone
Salmeterol/Fluticasone dispensing claim is used as the exposure group.
Brigham and Women's Hospital, Boston
Brigham and Women's Hospital
OTHER