500
Participants
Start Date
February 1, 2019
Primary Completion Date
August 1, 2022
Study Completion Date
December 1, 2025
Propafenone and Propranolol
Propafenone Hydrochloride Tablets, 100-200mg, 1 or 2 times per day; Propranolol Hydrochloride Sustained-Release Capsules, 40mg, 1 times per day
RECRUITING
Hebei province Children's Hospital, Shijiazhuang
Shandong University
OTHER