This study is a double-blind, placebo-controlled Phase I clinical trial evaluating the safety, tolerability, pharmacokinetic characteristics, and pharmacodynamics of a single subcutaneous dose of IBI3016 in Chinese patients with mild to moderate hypertension. The study plans to enroll approximately 30 subjects with mild to moderate hypertension (msSBP ≥140 mmHg and ≥170 mmHg) receiving antihypertensive medication. Eligible subjects will be randomly assigned in a 1:1:1:1:1 ratio to either the IBI3016 dose 1 group, the IBI3016 dose 2 group, the IBI3016 dose 3 group, the IBI3016 dose 4 group, or the placebo group. The entire trial period includes a 6-week screening period, a 12-week safety follow-up period, and an extended follow-up period.
