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Original Article
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Volume 343:604-610 August 31, 2000 Number 9
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Alendronate for the Treatment of Osteoporosis in Men
Eric Orwoll, M.D., Mark Ettinger, M.D., Stuart Weiss, M.D., Paul Miller, M.D., David Kendler, M.D., John Graham, M.B., B.S., Silvano Adami, M.D., Kurt Weber, M.D., Roman Lorenc, M.D., Ph.D., Peter Pietschmann, M.D., Kristel Vandormael, M.S., and Antonio Lombardi, M.D.

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ABSTRACT

Background Despite its association with disability, death, and increased medical costs, osteoporosis in men has been relatively neglected as a subject of study. There have been no large, controlled trials of treatment in men.

Methods In a two-year double-blind trial, we studied the effect of 10 mg of alendronate or placebo, given daily, on bone mineral density in 241 men (age, 31 to 87 years; mean, 63) with osteoporosis. Approximately one third had low serum free testosterone concentrations at base line; the rest had normal concentrations. Men with other secondary causes of osteoporosis were excluded. All the men received calcium and vitamin D supplements. The main outcome measures were the percent changes in lumbar-spine, hip, and total-body bone mineral density.

Results The men who received alendronate had a mean (±SE) increase in bone mineral density of 7.1±0.3 percent at the lumbar spine, 2.5±0.4 percent at the femoral neck, and 2.0±0.2 percent for the total body (P<0.001 for all comparisons with base line). In contrast, men who received placebo had an increase in lumbar-spine bone mineral density of 1.8±0.5 percent (P<0.001 for the comparison with base line) and no significant changes in femoral-neck or total-body bone mineral density. The increase in bone mineral density in the alendronate group was greater than that in the placebo group at all measurement sites (P<0.001). The incidence of vertebral fractures was lower in the alendronate group than in the placebo group (0.8 percent vs. 7.1 percent, P=0.02). Men in the placebo group had a 2.4-mm decrease in height, as compared with a decrease of 0.6 mm in the alendronate group (P=0.02). Alendronate was generally well tolerated.

Conclusions In men with osteoporosis, alendronate significantly increases spine, hip, and total-body bone mineral density and helps prevent vertebral fractures and decreases in height.


Source Information

From Oregon Health Sciences University, Portland (E.O.); the Clinical Research Center of South Florida, Stuart (M.E.); San Diego Endocrine and Medical Clinic, San Diego, Calif. (S.W.); the Colorado Center for Bone Research, Lakewood (P.M.); Vancouver Hospital and Health Science Centre, Vancouver, B.C., Canada (D.K.); Ashford Specialist Centre, Ashford, Australia (J.G.); the University of Verona, Verona, Italy (S.A.); the University of Graz, Graz, Austria (K.W.); Children's Memorial Institute, Warsaw, Poland (R.L.); the University of Vienna, Vienna, Austria (P.P.); Merck, Brussels, Belgium (K.V.); and Merck, Rahway, N.J. (A.L.).

Address reprint requests to Dr. Orwoll at Oregon Health Sciences University (CR113), 3181 S.W. Sam Jackson Park Rd., Portland OR 97201.

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