The study will consist of a 28 days( 4 week) screening period, a 196 day (28 weeks) treatment and assessment period, and an End of Study (EOS) visit on week 32 on Day 196. Subjects will undertake a screening visit between Day -28 and Day -1 to determine their eligibility for the study. Subjects who meet the eligibility criteria will be admitted to the study site on the day prior to dosing (Day -1), during which their continued eligibility will be assessed up to Day 1 prior to dosing. On Day 1, eligible subjects will be randomized and will receive a single dose of 120mg AVT03 or 120mg Xgeva as subcutaneous injection.
This study has been designed as a randomized, double-blind, parallel-group study and in healthy adult male subjects of age 28 years to 55 years old. The study will assess the PK, PD, safety and tolerability of AVT03 compared to US-Xgeva when administered as a single 120 mg SC dose