Evaluate the Efficacy and Safety of D-2570 in Subjects With Moderate to Severe Plaque Psoriasis

Inclusion Criteria

• •1. Subject voluntarily takes part in the study after being fully informed,signs a written ICF, and agrees to follow procedures specified in the study protocol;
• •2. Plaque psoriasis assessed by the investigator as suitable for systemic treatment and stable (defined as stable as no significant outbreak of morphological change or disease activity assessed by the investigator) for at least 6 months prior to signing informed consent;
• •3. During the screening period and before taking the investigational drug for the first time, psoriatic surface area (BSA) ≥10%, PGA score ≥ 3, PASI score ≥ 12;
• •4. Hematology, Blood chemistry and Urinalysis examination were basically normal.