http://www.latimes.com/news/science/la-he-statins-20100809,0,934659.storyAugust 9, 2010
Effectiveness of statins is called into question
The drugs clearly help patients who have already had a heart attack. But their use has skyrocketed in patients hoping to prevent a first heart attack. In those cases, the benefits are dubious.
By Melissa Healy, Los Angeles Times
As the world's most-prescribed class of medications, statins indisputably qualify for the commercial distinction of "blockbuster." About 24 million Americans take the drugs — marketed under such commercial names as Pravachol, Mevacor, Lipitor, Zocor and Crestor — largely to stave off heart attacks and strokes.
At the zenith of their profitability, these medications raked in $26.2 billion a year for their manufacturers. The introduction in recent years of cheaper generic versions may have begun to cut into sales revenues for the brand-name drugs that came first to the market, but better prices have only fueled the medications' use: In 2009, U.S. patients filled 201.4 million prescriptions for statins, according to IMS Health, which tracks prescription drug trends. That's nearly double the number of prescriptions written for statins in 2001, four years after they arrived on the American pharmaceutical landscape. But in recent months the drugs' touted medical reputation has come under tough scrutiny.
Statins were initially approved by the Food and Drug Administration for the prevention of repeat heart attacks and strokes in patients with high cholesterol who had already had a heart attack. And used for that purpose — called "secondary prevention" — the drugs are powerful and effective medications, driving down patients' risk of another heart attack or stroke by lowering their levels of LDL (or "bad") cholesterol. Then physicians came to believe statins could also reduce the risk of a first heart attack in people who have high LDL cholesterol but are nonetheless healthy. This use of statins — called "primary prevention" — has driven the growth in the market for statins over the last decade. Today, a majority of people who use statins are doing so for primary prevention of heart attacks and strokes. It is this use of statins that has come under recent attack.
"There's a conspiracy of false hope," says Harvard Medical School's Dr. John Abramson, who has cowritten several critiques of statins' rise, including one published in June in the Archives of Internal Medicine. "The public wants an easy way to prevent heart disease, doctors want to reduce their patients' risk of heart disease and drug companies want to maximize the number of people taking their pills to boost their sales and profits."...