Comparative Effect of Zoledronic Acid Versus Denosumab on Serum Sclerostin and Dickkopf-1 Levels of Naive Postmenopausal Women With Low Bone Mass: A Randomized, Head-to-Head Clinical Trial
2013
Context: Decreased bone formation due to a coupling effect limits bone mass increases after antiresorptive treatment. Objective: The purpose of this study was to compare the effects of 2 potent antiresorptive agents with different mechanism of action on serum levels of Wnt antagonists, sclerostin and dickkopf-1 (Dkk-1). Design: This was an interventional, parallel assignment, open-label, randomized clinical trial. Setting: The study was conducted at the outpatient clinics for metabolic bone diseases of 424 General Military Hospital, Thessaloniki, Greece. Patients and Interventions: Naive postmenopausal women with low bone mass were assigned to zoledronic acid infusion (n = 46) or denosumab injection (n = 46). One woman in the zoledronic acid group was lost to follow-up. Main Outcome Measures: Serum sclerostin and Dkk-1 levels were the main outcomes. Secondary measurements were serum osteoprotegerin, receptor activator of nuclear factor κB ligand, procollagen type 1 N-terminal propeptide, and C-terminal cr...
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