20
Participants
Start Date
April 30, 2024
Primary Completion Date
July 31, 2024
Study Completion Date
September 30, 2024
General treatment
routine bronchoscopy examination, lavage, and mucosal biopsy
Cryotherapy Treatment
local cryotherapy treatment (around the left and right main bronchi, upper trachea, and carina)
RECRUITING
The First Affiliated Hospital of Guangzhou Medical University, Guangzhou
Ningbo SensCure Biotechnology Co., Ltd.
UNKNOWN
Guangzhou Medical University
OTHER