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Miller, Paul D; Bolognese, Michael A; Lewiecki, E. Michael; McClung, Michael R; Ding, Beiying; Austin, Matthew; Liu, Yu; San Martin, Javier
Bone (New York, N.Y.), 08/2008, Letnik: 43, Številka: 2Journal Article
Abstract Introduction Denosumab is a fully human monoclonal antibody that inhibits receptor activator of nuclear factor-kappa B ligand (RANKL), an essential mediator of osteoclast formation, function, and survival that has been shown to decrease bone turnover and increase bone mineral density (BMD) in treated patients. We assessed the long-term efficacy and safety of denosumab, and the effects of discontinuing and restarting denosumab treatment in postmenopausal women with low bone mass. Methods Postmenopausal women with a lumbar spine T -score of − 1.8 to − 4.0 or proximal femur T -score of − 1.8 to − 3.5 were randomized to denosumab every 3 months (Q3M; 6, 14, or 30 mg) or every 6 months (Q6M; 14, 60, 100, or 210 mg); placebo; or open-label oral alendronate weekly. After 24 months, patients receiving denosumab either continued treatment at 60 mg Q6M for an additional 24 months, discontinued therapy, or discontinued treatment for 12 months then re-initiated denosumab (60 mg Q6M) for 12 months. The placebo cohort was maintained. Alendronate-treated patients discontinued alendronate and were followed. Changes in BMD and bone turnover markers (BTM) as well as safety outcomes were evaluated. Results Overall, 262/412 (64%) patients completed 48 months of study. Continuous, long-term denosumab treatment increased BMD at the lumbar spine (9.4% to 11.8%) and total hip (4.0% to 6.1%). BTM were consistently suppressed over 48 months. Discontinuation of denosumab was associated with a BMD decrease of 6.6% at the lumbar spine and 5.3% at the total hip within the first 12 months of treatment discontinuation. Retreatment with denosumab increased lumbar spine BMD by 9.0% from original baseline values. Levels of BTM increased upon discontinuation and decreased with retreatment. Adverse event rates were similar among treatment groups. Conclusions In postmenopausal women with low BMD, long-term denosumab treatment led to gains in BMD and reduction of BTM throughout the course of the study. The effects on bone turnover were fully reversible with discontinuation and restored with subsequent retreatment.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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