RecruitingPhase 3Drug trialA Adaptive Design Clinical Trial to Evaluate the Efficacy and Safety of TDI01 Suspension in the Treatment of Idiopathic Pulmonary Fibrosis (IPF)This study is a multicentre, randomised, double-blind, placebo-controlled, adaptive design clinical trial to evaluate the efficacy and safety of TDI01 suspension in the treatment of idiopathic pulmonary fibrosis (IPF). The study will be conducted in China and divided into two stages, both of which are multicentre, randomised, double-blind, placebo-controlled studies. Stage 1 aims to evaluate the efficacy and safety of TDI01 suspension compared to the placebo group in the treatment of IPF patients, and Stage 2 aims to further confirm the efficacy and safety of TDI01 suspension compared to the placebo group in the treatment of IPF patients.