Study Status: Recruiting
Recruit Status: Recruiting
Study Type: Interventional
Official Title: A Multi-center, Randomized, Placebo-controlled, Double-blinded Then Open 2 Stages Clinical Trial to Evaluate the Efficacy and Safety of Romiplostim in Adult Subjects With Persistent or Chronic Primary
Brief Summary: The objective is to evaluate the efficacy and safety of romiplostim for injection in adlut subjects with persistent or chronic primary immune thrombocytopenia (ITP).