This is a Phase I, Randomized, Double-Blind, Placebo-Controlled, Single and Multiple Ascending Dose Study to Evaluate the Safety, Tolerability, Absolute Bioavailability, Pharmacokinetics, and Pharmacodynamics of AGA2118 in Men and Postmenopausal Women.~The study consists of the single ascending dose (SAD) part and the multiple ascending dose (MAD) part. In the SAD part, up to 56 healthy men and postmenopausal women will be sequentially enrolled to receive a single subcutaneous (SC) dose of AGA2118 or a single intravenous (IV) dose of AGA2118 or placebo. In the MAD part, up to 32 healthy men and postmenopausal women will be sequentially enrolled in various dose cohorts to receive multiple SC doses every 4 weeks of AGA2118 or placebo.
The primary objectives of the study are to assess the safety and tolerability of AGA2118 after single subcutaneous or intravenous administration in healthy men and postmenopausal women and to assess the safety and tolerability of AGA2118 after multiple subcutaneous administrations in men and postmenopausal women.