Romosozumab in Postmenopausal Women with Low Bone Mineral Density.
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in The New England journal of medicine (2014)
Background Sclerostin is an osteocyte-derived inhibitor of osteoblast activity. The monoclonal antibody romosozumab binds to sclerostin and increases bone formation. Methods In a phase 2, multicenter ... [more ▼]
Background Sclerostin is an osteocyte-derived inhibitor of osteoblast activity. The monoclonal antibody romosozumab binds to sclerostin and increases bone formation. Methods In a phase 2, multicenter, international, randomized, placebo-controlled, parallel-group, eight-group study, we evaluated the efficacy and safety of romosozumab over a 12-month period in 419 postmenopausal women, 55 to 85 years of age, who had low bone mineral density (a T score of -2.0 or less at the lumbar spine, total hip, or femoral neck and -3.5 or more at each of the three sites). Participants were randomly assigned to receive subcutaneous romosozumab monthly (at a dose of 70 mg, 140 mg, or 210 mg) or every 3 months (140 mg or 210 mg), subcutaneous placebo, or an open-label active comparator - oral alendronate (70 mg weekly) or subcutaneous teriparatide (20 mug daily). The primary end point was the percentage change from baseline in bone mineral density at the lumbar spine at 12 months. Secondary end points included percentage changes in bone mineral density at other sites and in markers of bone turnover. Results All dose levels of romosozumab were associated with significant increases in bone mineral density at the lumbar spine, including an increase of 11.3% with the 210-mg monthly dose, as compared with a decrease of 0.1% with placebo and increases of 4.1% with alendronate and 7.1% with teriparatide. Romosozumab was also associated with large increases in bone mineral density at the total hip and femoral neck, as well as transitory increases in bone-formation markers and sustained decreases in a bone-resorption marker. Except for mild, generally nonrecurring injection-site reactions with romosozumab, adverse events were similar among groups. Conclusions In postmenopausal women with low bone mass, romosozumab was associated with increased bone mineral density and bone formation and with decreased bone resorption. (Funded by Amgen and UCB Pharma; ClinicalTrials.gov number, NCT00896532 .). [less ▲]Detailed reference viewed: 20 (4 ULg)
The Effect of 3 or 6 Years of Denosumab Exposure in Women With Postmenopausal Osteoporosis: Results From the FREEDOM Extension.
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in The Journal of clinical endocrinology and metabolism (2013)
Context:The FREEDOM extension is evaluating the long-term efficacy and safety of denosumab for up to 10 years.Objective:Report results from the first 3 years of the extension, representing up to 6 years ... [more ▼]
Context:The FREEDOM extension is evaluating the long-term efficacy and safety of denosumab for up to 10 years.Objective:Report results from the first 3 years of the extension, representing up to 6 years of denosumab exposure.Design, Setting, and Participants: Multicenter, international, open-label study of 4550 women.Intervention:Women from the FREEDOM denosumab group received 3 more years of denosumab for a total of 6 years (long-term) and women from the FREEDOM placebo group received 3 years of denosumab (cross-over).Main Outcome Measures:Bone turnover markers (BTMs), bone mineral density (BMD), fracture, and safety.Results:Reductions in BTMs were maintained (long-term) or achieved rapidly (cross-over) following denosumab administration. In the long-term group, BMD further increased for cumulative 6-year gains of 15.2% (lumbar spine) and 7.5% (total hip). During the first 3 years of denosumab treatment, the cross-over group had significant gains in lumbar spine (9.4%) and total hip (4.8%) BMD, similar to the long-term group during the 3-year FREEDOM trial. In the long-term group, fracture incidences remained low and below rates projected for a "virtual placebo" cohort. In the cross-over group, 3-year incidences of new vertebral and nonvertebral fractures were similar to those of the FREEDOM denosumab group. Incidence rates of adverse events did not increase over time. Six participants had events of ONJ confirmed by adjudication. One participant had a fracture adjudicated as consistent with atypical femoral fracture.Conclusion:Denosumab treatment for 6 years remained well tolerated, maintained reduced bone turnover, and continued to increase BMD. Fracture incidence remained low. [less ▲]Detailed reference viewed: 19 (1 ULg)
Long-term denosumab treatment of postmenopausal women with osteoporosis: results from the first year extension study of the FREEDOM trial
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in Arthritis and Rheumatism (2010, October), 62(10), 903Detailed reference viewed: 56 (1 ULg)