TQB-3473

This is a randomized, double-blind, placebo-controlled Phase III clinical study designed to demonstrate that TQB3473 tablets significantly improve the sustained response rate compared to placebo in adult patients with chronic ITP who have previously received standard corticosteroid therapy and have failed or relapsed after at least one standard ITP treatment.
The study consists of a treatment period and a safety follow-up period.

本研究旨在证明在接受过标准糖皮质激素治疗且至少1种ITP标准治疗无效或治疗后复发的成人慢性ITP受试者中，TQB3473片对比安慰剂能够显著提高持续有效率。