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PURPOSE: The efficacy comparison of osteoporosis treatments can be hindered by the absence of head-to-head trials; instead, network meta-analyses (NMAs) have been used to determine comparative effectiveness. This study was the first to investigate the impact of time point-specific NMAs of osteoporosis treatments on variability in treatments' onset of action caused by their different mechanisms of actions and trial designs. METHODS: A systematic literature review was conducted to identify randomized controlled trials (RCTs) of treatments for postmenopausal women with osteoporosis, including romosozumab (ROMO), teriparatide (TPTD), abaloparatide (ABL), alendronate (ALN), risedronate (RIS), ibandronate (IB), zoledronic acid/zoledronate (ZOL), denosumab (DEN), and raloxifene (RLX), on at least 1 fracture or bone mineral density (BMD) outcome. Of 100 RCTs identified in 5 databases, 27 RCTs were included for NMAs of new vertebral, nonvertebral, and hip fracture outcomes at 12, 24, and 36 months, and 47 RCTs were included for NMAs of BMD outcomes at lumbar spine, total hip, and femoral neck to compare the relative efficacy of osteoporosis treatments. Quality of included studies was assessed using the Cochrane Risk of Bias tool. FINDINGS: For vertebral fractures, TPTD (83.63%), ABL (69.11%), and ROMO/ALN (78.70%) had the highest probability to be the most effective treatment at 12, 24, and 36 months, respectively. ROMO/ALN had the highest probability (54.4%, 64.69%, and 90.29%, respectively) to be the most effective treatment for nonvertebral fractures at 12, 24, and 36 months. For hip fractures, ROMO/ALN (46.31%), ABL (61.1%), and DEN (55.21%) had the highest probability to be the most effective treatment at 12, 24, and 36 months, respectively. ROMO had the highest probability (76.06%, 44.19%, and 51.78%, respectively) to be the most effective treatment for BMD outcomes at lumbar spine, total hip, and femoral neck. IMPLICATIONS: The importance of indirectly comparing available osteoporosis treatments using time point-specific NMAs was confirmed because indirect comparison results differed substantially across time points.

Original publication

DOI

10.1016/j.clinthera.2021.11.015

Type

Journal article

Journal

Clin ther

Publication Date

17/01/2022

Keywords

comparative effectiveness, fracture prevention, indirect treatment comparison, network meta-analysis, osteoporosis, systematic review