Phase Ib: single arm, open lable, single dose, dose escalation,design. There are 3 dose groups with 10 participant s in each group.~Phase II: randomized, double-blind, active control design.There are 2 dose groups of Genakumab for Injection with 30 participant s in each group and 1 group of Compound Betamethasone Injection with 30 praticipants.
To evaluate the safety and tolerability of single subcutaneous injection of Genakumab for Injection in patients with acute gout