A Study of the Efficacy and Safety of SHR-1314 for Adult Active Psoriatic Arthritis

Inclusion criteria

• The subject voluntarily signs an informed consent form before any procedures related to the research start;
• At the time of screening, it met the 2006 psoriatic arthritis classification standard (CASPAR)；
• There is active PsA before randomization;
• Have active plaque psoriasis (at least one plaque skin lesion) at the time of screening, or have a history of plaque psoriasis;
• Participants who have previously been treated with csDMARDs and/or NSAIDs still have active psoriatic arthritis disease.

Exclusion criteria

• Existence of any of the following medical history or comorbid diseases: drug-induced psoriasis; other active inflammatory diseases or autoimmune diseases; history of organ transplantation; history of lymphocytic proliferation; severe infections, etc.
• Have received psoriatic arthritis or psoriasis drugs, such as intra-articular injections, plant preparations, etc. within a certain period of time in the past.
• Those who are allergic to the drug ingredients or excipients in this study, or are allergic to other biological agents.
• A history of alcohol abuse or illegal drug abuse in pregnant or breastfeeding women, etc.