8,716
Participants
Start Date
September 22, 2020
Primary Completion Date
August 9, 2021
Study Completion Date
August 9, 2021
Salmeterol
Salmeterol inhaler dispensing claim is used as the reference
Tiotropium
Tiotropium dispensing claim is used as the reference
Brigham and Women's Hospital, Boston
Brigham and Women's Hospital
OTHER