A Study to Assess the Safety, Tolerability, and Efficacy of Monthly Subcutaneous Administration of ION904 in Participants With Uncontrolled Hypertension

This is a Phase 2, multicenter, double-blind, randomized, placebo-controlled study. It will include up to approximately 48 participants with mild to moderate hypertension who have uncontrolled blood pressure (˃ 130 - ≤ 170 millimeters of mercury \[mmHg\] systolic) and have been on one or more anti-hypertensive medications for at least one month. Following an up to 4-week screening period, eligible participants will receive multiple doses of ION904 during a 13-week treatment period, followed by a 13-week post-treatment follow-up period.