The purpose of this study is to compare the efficacy and safety of Denosumab 60 mg produced by AryoGen Pharmed and Amgen Denosumab 60 mg among osteoporotic postmenopausal women. Postmenopausal women diagnosed with osteoporosis according to their Bone mineral density result (BMD) and aged between 45 to 75 are included in this trial. This is a Phase III, randomized, two armed, double-blind, parallel, active-controlled,non-inferiority clinical trial. Visits are going to be conducted at screening, 0, 1, 3, 6, 9, 12, 15 and 18 months.~After signing the written informed consent, patients are randomized in a 1:1 ratio to receive Arylia or Prolia® subcutaneous injections, at the beginning of the trial and every 6 months at month 6 and 12, in an 18-month study period. Along with, all women will receive daily supplements containing at least 1000 mg of elemental calcium (divided into two doses) and at least 400 IU vitamin D daily during 18 months of the study.~The primary objective of this study is to assess percentage change from baseline in BMD at the lumbar spine (L1-L4), femoral neck and total hip by dual-energy x-ray absorptiometry to 18 months of the study, and compare it between two treatment groups.~The second objectives of this study are to assess the followings between treatment groups:~The incidence of new vertebral fracture;~Evolution of biochemical markers of bone metabolism at baseline, first month and afterward every 3 months from baseline.~Comparing adverse events;~Comparing immunogenicity of two products.~Before initiation, the trial is reviewed by food and drug administration of Iran. The protocol, electronic case report form (eCRF), information for patients and informed consent forms are submitted to the ethics committees responsible for review and approval purposes, according to national regulatory guidelines.~Sample size:~172 patients will be equally (1:1) divided into intervention arms for achieving 80% power in order to determine non-inferiority using a one-sided, independent sample t-test. Efficacy of Prolia® in comparison with placebo for lumbar spine BMD improvement in previous studies is reported 7.1%. The margin of non-inferiority is 1.78. The true difference between the means is assumed to be 0.000. The significance level (alpha) of the test is 0.025. The data are drawn from populations with standard deviations of 4.116 and 4.116. However, we have calculated that 190 patients should enter the study, by considering that there might be 10% drop-outs of participants during the trial.~Blinding:~To prevent the influence of knowing intervention group on study conclusion, the subjects and those who assess the study outcomes will be unaware of the state of the patient with regard to receiving the test drug or reference drug.~For this purpose, subjects and administrator of the drug will be blinded by using a similar masked prefilled syringes. All drugs packages will be identified by unique numbers.
The purpose of this study is to compare the efficacy and safety of Denosumab 60 mg produced by AryoGen Pharmed and Amgen Denosumab 60 mg among osteoporotic postmenopausal women. Postmenopausal women diagnosed with osteoporosis according to their Bone mineral density result (BMD), aged between 45 to 75 are included in this trial. This is a Phase III, randomized, two armed, double-blind, parallel, active-controlled,non-inferiority clinical trial. The eligible patients are randomized in a 1:1 ratio to receive Arylia or Prolia® subcutaneous injections, at the beginning of the trial and every 6 months at month 6 and 12, in an 18-month study period. Along with, all women will receive daily supplements containing at least 1000 mg of elemental calcium (divided into two doses) and at least 400 IU vitamin D daily during 18 months of the study.~The primary objective of this study is to assess non-inferiority of test- Denosumab 60 mg (Arylia) to the reference Denosumab 60 mg (Prolia®) in terms of efficacy among osteoporotic postmenopausal women.~The secondary objectives of this study are:~To further compare efficacy of test- Denosumab 60 mg to reference Denosumab 60 mg; To assess the safety of test- Denosumab 60 mg compared to reference Denosumab 60 mg.