A Randomized, Double-blind, Placebo-controlled, Single and Multiple Dose Escalation Phase I Clinical Trial to Evaluate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of IMC-003 for Injection in Healthy Postmenopausal Women

"Part 1: Single Dose Dose Escalation (SAD):~Dose and frequency: 0.03mg/kg, 0.1mg/kg, 0.3mg/kg, 0.7mg/kg, 1.0mg/kg for single administration, with the test drug or placebo administered respectively.~Part 2: Multiple Dose Dose Escalation (MAD):~Dose and frequency: Tentatively set at 0.3mg/kg, 0.5mg/kg, 0.7mg/kg. Administer once every 3 weeks for 5 consecutive times (unless the subject cannot tolerate, withdraw prematurely, or is lost to follow-up, etc.), with the test drug or placebo administered respectively."

Part 1(SAD) subject will receive IMC-003 once ; Part 2 (MAD) subject will receive the placebo of IMC-003 for 5 times, with an interval of 21 days between each administration.