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Osteoporosis Health Center

Once-Yearly Drug Prevents Fractures

Reclast for Osteoporosis: One 15-Minute Infusion per Year
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WebMD Health News
Reviewed by Louise Chang, MD

May 2, 2007 - With one 15-minute infusion a year, a bone-loss drug called Reclast cuts risk of vertebral fractures by 70% and hip fractures by 41% over three years.

The finding comes from a clinical trial in which nearly 4,000 postmenopausal women got Reclast and about the same number got an inactive placebo. At the start of the study, the women's average age was 73.

A major problem with the most commonly prescribed class of osteoporosis drugs -- bisphosphonates -- is that they aren't easy to take the right way. They have to be taken first thing in the morning, on an empty stomach, 30 minutes before eating anything -- and you have to remain standing or sitting upright during this half-hour fast.

That's why only 30% of people are still taking their osteoporosis drugs after a year, says study leader Dennis M. Black, PhD, of the University of California, San Francisco.

"And who knows how many of that 30% are actually taking it right," Black tells WebMD. "So in terms of clinical effect, even if our study shows Reclast is just the same as some other osteoporosis drugs, the real clinical effect will be better."

The study did not actually compare Reclast to other osteoporosis drugs, notes study investigator and osteoporosis specialist Felicia Cosman, MD, of Helen Hayes Hospital and Columbia University. Cosman also serves as clinical director for the National Osteoporosis Foundation.

"The results from this placebo-controlled trial really show that Reclast is at least as effective vs. fractures -- if not more effective -- than anything else in this drug class we currently have on the market," Cosman tells WebMD.

Reclast doesn't totally prevent fractures. Over three years, 3.3% of women who took the drug had vertebral fractures and 1.4% had hip fractures. But that was far better than the 10.9% rate of vertebral fractures and the 2.5% rate of hip fractures in the placebo group.

"We want to stress that in between these infusions, women still need to take their calcium and vitamin D and exercise and use all the lifestyle measures that should be done to reduce bone loss. This would not take the place of that," Cosman warns.

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