The study will randomise approximately 528 postmenopausal women with osteoporosis aged ≥55 and ≤80 years old with a Bone Mineral Density (BMD) consistent with T-score of ≤ -2.5 and ≥ -4 at the lumbar spine or hip as measured by DXA during the Screening Period. Screening evaluations will be completed within 28 days prior to randomisation.~On Day 1, 528 eligible postmenopausal women with osteoporosis will be randomised in a 2:1:1 ratio to re-ceive MB09-MB09 (Arm 1), Prolia-MB09 (Arm 2), or Prolia-Prolia (Arm 3) using an Interactive Response Sys-tem (IRT).~During the Main Treatment Period, subjects will receive one subcutaneous injection (60 mg/mL) of study drug on Day 1 and at Month 6. At Month 12, after all efficacy and safety assessments have been performed, the subject will enter the Transition/Safety Follow Up Period and will receive the third dose of study drug. Subjects assigned to the MB09 MB09 arm (Arm 1) will receive MB09 on Day 1, at Month 6 and at Month 12. Subjects assigned to the Prolia MB09 arm (Arm 2) will receive EU-Prolia on Day 1 and at Month 6, and MB09 at Month 12. Subjects assigned to the Prolia-Prolia arm (Arm 3) will receive EU-Prolia on Day 1, at Month 6, and at Month 12. All subjects will be followed up to Transition Period Month 6.~All subjects will receive daily supplementation of calcium and vitamin D.
This is a randomized, double-blind, parallel, multicenter, multinational study to compare the efficacy, pharmacokinetics, pharmacodynamics, safety and immunogenicity of MB09 versus Prolia® in postmenopausal women with osteoporosis