And the studies keep coming [1]. An independent study of 159,000 older people with diabetes found that patients treated with GlaxoSmithKline's Avandia and Takeda Pharmaceuticals' Actos had a higher risk of heart attack and death. Published in the Journal of the American Medical Association, the study concluded that these patients had a 60 percent increase in the risk of heart failure, 40 percent increase in heart attack risk, and a 30 percent increase in the risk of death.
"At least in this high-risk population, the harms may outweigh the benefits," the study's lead author said. For every 100 people treated with Actos or Avandia over a four-year-period, she said, there would be five additional deaths, four additional heart attacks and three additional episodes of heart failure.
The FDA in November added a heart-attack warning [2] to Avandia's label, but said the evidence linking the diabetes drug to heart attacks was inconclusive. Actos' label is free of the heart-attack language. The new study won't change the agency's recommendations, the FDA said in a statement.
GlaxoSmithKline, Avandia's manufacturer, said the new data is flawed because the patients using the drug typically were those who'd failed other treatments, and so they were sicker to start with.
- check out GSK's release [3]
- read the Chicago Tribune report [4]
- see this report [5] The New York Times
- read the JAMA study abstract [6]
Related Articles:
Study: Avandia breaks down bones. Report [1]
New Avandia warning 'a muddle'. Report [2]
Avandia warning, comeback imminent? Report [7]
Avandia cleared FDA by one vote. Report [8]
Links:
[1] http://www.fiercepharma.com/story/study-avandia-breaks-down-bones/2007-12-03?utm_medium=nl&utm_source=link
[2] http://www.fiercepharma.com/story/new-avandia-warning-muddle/2007-11-15?utm_medium=rss&utm_source=rss
[3] http://www.fiercebiotech.com/press-releases/press-release-glaxosmithkline-responds-jama-article
[4] http://www.chicagotribune.com/business/chi-wed_diabetes_1212dec12,0,6369760.story?coll=chi-unitednav-misc
[5] http://www.nytimes.com/2007/12/12/business/12drug.html?ref=business
[6] http://jama.ama-assn.org/cgi/content/abstract/298/22/2634
[7] http://www.fiercepharma.com/story/avandia-warning-comeback-imminent/2007-11-14?utm_medium=nl&utm_source=link
[8] http://www.fiercepharma.com/story/spotlight-avandia-cleared-fda-one-vote/2007-10-30