Effects of Bazedoxifene/Vitamin D Combination Therapy on Serum Vitamin D Levels and Bone Turnover Markers in Postmenopausal Women with Osteopenia: A Randomized Controlled Trial

Author:

Jeong ChaihoORCID,Ha JeonghoonORCID,Yoo Jun-IlORCID,Lee Young-KyunORCID,Kim Jung HeeORCID,Ha Yong-ChanORCID,Min Yong-KiORCID,Byun Dong-WonORCID,Baek Ki-HyunORCID,Chung Ho YeonORCID

Abstract

Background: This study aimed to evaluate the effectiveness of bazedoxifene/vitamin D combination therapy in preventing osteoporosis in postmenopausal women with osteopenia.Methods: This was an open-label, multicenter randomized-controlled, phase 4 clinical trial. Women between ages of 55 and 70 years in 9 medical tertiary centers in Korea were enrolled and assigned into 2 groups: an experiment group and a control group. The experimental group received bazedoxifene 20 mg/vitamin D 800 IU tablets for 6 months, and the control group received calcium 100 mg/vitamin D 1,000 IU tablets for 6 months.Results: A total of 142 patients (70 in the experimental group and 72 in the control group) were included. The least-square mean±standard error of change in propeptide of type I collagen after 3 months was -6.87±2.56% in the experimental group and 1.22±2.54% in the control group. After 6 months, it was -21.07±2.75% in the experimental group and 1.26±2.71% in the control group. The difference between the 2 groups was -22.33% (<i>p</i><0.01). The change of C-terminal telopeptide was -12.55±4.05% in the experimental group and 11.02±4.03% in the control group after 3 months. It was -22.0±3.95% and 10.20±3.89, respectively, after 6 months. The difference between the 2 groups was -32.21% (<i>p</i><0.01) after 6 months. There was no significant difference in adverse events between the 2 groups.Conclusions: The osteoporosis preventive effect and safety of administering bazedoxifene/vitamin D combination pill were confirmed in postmenopausal women who needed osteoporosis prevention.

Funder

Alvogen Korea

Publisher

Korean Society for Bone and Mineral Research

Subject

Endocrinology,Endocrinology, Diabetes and Metabolism

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1. Molecular and Cellular Mechanisms of Osteoporosis;International Journal of Molecular Sciences;2023-10-30

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