This study consists of Part 1 and Part 2. <Part 1> Part 1 will be conducted according to a single-centre, randomized, single-dose, 3-period, 5-treatment alternating crossover design in two groups of healthy post-menopausal women The pharmacokinetics, safety, and tolerability of a single dose of AK159 (4 levels) will be investigated versus teriparatide acetate for injection as a control.~<Part 2> Part 2 will be conducted according to a multiple-centre, randomized, double-blind, placebo-controlled, repeated dose parallel design of healthy post-menopausal women The pharmacokinetics, safety, and tolerability of AK159 (4 levels) for 8 weeks will be investigated versus teriparatide acetate for injection and placebo as controls. Pharmacokinetics, safety, and tolerability following long-term application will also be investigated.
The objective of this study is to investigate the pharmacokinetics, safety, and tolerability of AK159 administered to healthy postmenopausal women.