Efficacy and Safety of Pirfenidone Capsules in the Treatment of Pneumoconiosis
This study is a randomized, double-blind, placebo-controlled, multicenter clinical study. The main purpose of this study was to confirm the efficacy and safety of pirfenidone capsules in the treatment of pneumoconiosis.
1. Age 18~70 years old (including 18 years old and 70 years old), gender is not...
1. Those who do not meet any of the inclusion criteria. 2. Those who have receiv... [+3]