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Study: Once-a-year osteoporosis shot reduces fractures

By ASSOCIATED PRESS
Published September 17, 2006


An experimental treatment for bone-thinning osteoporosis appears to prevent spine and hip fractures even though it is given only once a year, eliminating the need for a strict daily pill regimen, preliminary data show.

Reclast, given as an annual, 15-minute infusion, reduced risk of new spine fractures by 70 percent and of hip fractures by 40 percent, according to data supplied by maker Novartis Pharmaceuticals Corp. The drug, chemically known as zoledronic acid, also reduced the risk of fractures elsewhere, according to a new international study of 7,736 postmenopausal women with osteoporosis.

Side effects were generally minor, said Novartis, of East Hanover, N.J.

The data was presented Saturday at the annual meeting of the American Society of Bone and Mineral Research in Philadelphia.

"This is very good news," said Dr. Ethel Siris, president of the National Osteoporosis Foundation and director of the Osteoporosis Center at Columbia University.

"Because it can be given once a year, it's going to be terrific for women who like that option," said Siris, who has consulted for Novartis.

Novartis plans to apply for U.S. approval to sell Reclast early next year.

Lead researcher Dennis Black, a professor of epidemiology at University of California at San Francisco, said that like Fosamax and other pills, Reclast slows down the speed at which cells called osteoclasts break down bone while other cells build it back up.

"If you take Fosamax every week for a year, you'll get a similar effect on bone density," Black said.

He said Reclast is part of a decade-long trend of researchers developing osteoporosis drugs taken less and less frequently: Some pills are taken only once a month, and one drug is available as a shot every three months.

Dr. Thomas Cavalieri, director of the New Jersey Institute for Successful Aging, said Reclast will be significant, if approved, because many osteoporosis patients stop taking their medicine in the first year. One reason is that the pills can cause irritation and ulcers in the esophagus; to limit that, people must take them first thing on an empty stomach, with a large glass of water, then stay upright for 30 to 60 minutes.

That could make nursing home residents and patients with acid reflux disease candidates for the shot.

In the United States, about 10-million people have osteoporosis and 34-million others have low bone density, putting them at risk for it, according to the National Osteoporosis Foundation. Half of women over age 50 with the disorder will suffer a fracture.

[Last modified September 17, 2006, 01:37:03]


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