79
Participants
Start Date
September 1, 2020
Primary Completion Date
August 31, 2023
Study Completion Date
December 1, 2023
BCG vaccination
BCG vaccination
Metformin is administered on the day 0
Metformin is administered on the day 0
Placebo
Placebo
Metformin is administered on the day 9
Metformin is administered on the day 9
Metformin is administered on the day 85
Metformin is administered on the day 85
Wuhan University, Wuhan
Zhongnan Hospital
OTHER