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Effects of a combined alendronate and calcitriol agent (Maxmarvil®) on bone metabolism in Korean postmenopausal women: a multicenter, double-blind, randomized, placebo-controlled study

 Y. Rhee  ;  M. Kang  ;  Y. Min  ;  D. Byun  ;  Y. Chung  ;  C. Ahn  ;  K. Baek  ;  J. Mok  ;  D. Kim  ;  D. Kim  ;  H. Kim  ;  Y. Kim  ;  S. Myoung  ;  D. Kim  ;  S.-K. Lim 
 OSTEOPOROSIS INTERNATIONAL, Vol.17(12) : 1801-1807, 2006 
Journal Title
Issue Date
Alendronate ; Calcitriol ; Combinative agent ; Postmenopausal osteoporosis
INTRODUCTION: A randomized, double-blind, prospective, 24-week clinical trial was performed to evaluate the effects of a combinative agent, Maxmarvil, of calcitriol (0.5 mug) and alendronate (5 mg) on bone metabolism in postmenopausal women. METHODS: A total of 217 postmenopausal women with osteoporosis were enrolled; 199 patients were randomly assigned to one of two treatment groups (Maxmarvil group or alfacalcidol group). None of the patients were vitamin-D-deficient, as assessed by serum 25-hydroxyvitamin D (25(OH)D), nor had they received any drugs affecting bone metabolism before enrollment. Bone mineral densities (BMD) of L1-L4 and the femur were measured by dual-energy X-ray absorptiometry (DXA) at the initial assessment and after 6 months of treatment. Serum biochemical assays, including serum calcium, 24-h urinary calcium excretion, and bone turnover markers (both bone-specific alkaline phosphatase [bsALP] and urine N-telopeptide [NTx]), were performed at the baseline and after 3 and 6 months of treatment. RESULTS: In the Maxmarvil group, the BMD of the lumbar spine increased up to 2.42+/-0.5% from the baseline after 6 months (p<0.05). On the other hand, the change in BMD in the alfacalcidol group was 0.28+/-0.5% after 6 months. There was no significant difference in femoral BMD between the two groups. The levels of bsALP and NTx were significantly lower in the Maxmarvil group than in the alfacalcidol group (-22.04+/-3.9% vs. -11.42+/-2.8% [p<0.05] and -25.46+/-5.2% vs. 1.24+/-6.2% [p<0.001], respectively). Interestingly, there was a significantly smaller amount of 24-h urinary calcium in the Maxmarvil group (p<0.05). CONCLUSIONS: Our study demonstrates that a combination of calcitriol and alendronate is quite effective in preventing bone loss, with the advantage of lesser hypercalciuric effect of calcitriol in the postmenopausal osteoporotic women.
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Ahn, Chul Woo(안철우) ORCID logo https://orcid.org/0000-0003-3733-7486
Rhee, Yumie(이유미) ORCID logo https://orcid.org/0000-0003-4227-5638
Lim, Sung Kil(임승길)
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