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© 2005 Oxford University Press
NEWS |
Researchers Plan To Continue To Study COX-2 Inhibitors in Cancer Treatment and Prevention
| The first 150 words of the full text of this article appear below. |
Several cyclooxygenase 2 (COX-2) inhibitors have taken a beating from recent evidence that they can cause deaths from heart attack and stroke, but some cancer researchers say that the drugs are too promising as possible chemoprevention agents to abandon them completely.
Rofecoxib (Vioxx) was withdrawn from the market in September when a colon cancer chemoprevention trial revealed an increased risk of heart attacks and strokes among long-term users (see News, Vol. 96, No. 23, p. 1734, "Vioxx Withdrawal Alarms Cancer Prevention Researchers"). Soon after, valdecoxib (Bextra) was shown to increase heart attacks in people who recently had coronary artery bypass surgery.
Bad news for celecoxib (Celebrex), the COX-2 inhibitor used most frequently in prevention trials, came in December: It also increased the risk of heart attacks in a cancer prevention trial. Drug administration was stopped on dozens of cancer prevention trials, other studies were halted, and a U.S.
Does it Work in Cancer?
Which Cohorts Are Worth Pursuing?
NSAIDs and COX-2 Inhibitors
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