Two-year effectiveness of zoledronic acid with or without eldecalcitol in Japanese patients with osteoporosis: A randomized prospective study.

This study aims to examine the 2-year outcomes of zoledronic acid (ZOL) with or without eldecalcitol (ELD) on bone mineral density (BMD) and fracture in Japanese patients with osteoporosis. The subjects were 98 patients who were randomly (1:1) assigned to treatment with ZOL combined with ELD (ZOL + ELD group; n = 51) and ZOL alone (ZOL group; n = 47). Treatment efficacy was examined based on a comparison of changes in BMD from baseline (ΔBMD) in the lumbar spine, total hip, and femoral neck in the 2 groups. The percent change from baseline in BMD values for the lumbar spine, total hip, and femoral neck at 24 months were 10.8% ± 6.1%, 6.0% ± 6.6%, and 5.1% ± 5.1%, respectively, in the ZOL + ELD group, and 7.7% ± 6.2%, 5.1% ± 5.6%, and 2.9% ± 8.3%, respectively, in the ZOL group. The percent change from baseline BMD for the lumbar spine at 24 months differed significantly between the 2 groups. The effect of a combination of ZOL + ELD on BMD for 24 months was more favorable than that of ZOL alone. This drug combination is promising for the treatment of drug-naïve Japanese patients with primary osteoporosis.

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© 2022 The Korean Society of Osteoporosis. Publishing services by Elsevier B.V.

Déclaration de conflit d'intérêts

Takeshi Mochizuki received honoraria for lectures from AbbVie, Astellas, Bristol-Myers, Chugai, Daiichi Sankyo, Eisai, Eli Lilly, Janssen, Mochida, Pfizer, Takeda, and Tanabe-Mitsubishi. Koichiro Yano received honoraria for lectures from AbbVie, Astellas, AYUMI, Bristol-Meyers, Eisai, Hisamitsu, Mochida, and Takeda. Katsunori Ikari received honoraria for lectures from AbbVie, Astellas, Bristol-Myers, Chugai, Eisai, Eli Lilly, Janssen, Takeda, Tanabe-Mitsubishi, and UCB. The other authors declare that they have no conflicts of interest. The sponsors were not involved in the study design; collection, analysis, and interpretation of data; writing of the article; and/or decision to submit the results for publication.