To: Anthony Wong who wrote (6195 ) 11/3/1998 4:14:00 PM From: Anthony Wong Respond to of 9523
Pfizer to Seek Approval for Zoloft for Post-Traumatic Stress Bloomberg News November 3, 1998, 10:43 a.m. ET Pfizer to Seek Approval for Zoloft for Post-Traumatic Stress Paris, Nov. 3 (Bloomberg) -- Pfizer Inc.'s best-selling antidepressant Zoloft appears to be effective in treating post- traumatic stress syndrome, a benefit that may apply to other similar drugs, a study released today showed. The New York-based maker of impotence pill Viagra plans to use the study as part of its application for approval to sell Zoloft to treat the debilitating condition, a filing that is expected to be imminent, a spokeswoman said. Zoloft, which generated $1.5 billion in 1997, is now approved to treat depression, panic disorder and obsessive-compulsive disorder. If approved, Zoloft would be the first of a class of antidepressant drugs called SSRIs to be approved for treating post-traumatic stress syndrome, according to Kathleen T. Brady, associate professor of psychiatry at the Medical University of South Carolina, one of the researchers on the trial. ''It is a disorder that has been underrecognized for years,'' said Brady in an interview. The syndrome, which causes flashbacks and other negative psychological effects after damaging events such as war, rape or assault, affects about 8 percent of the general population, according to the study, which was released today at the 11th European College of Neuropsychopharmacology conference in Paris. The researchers tested 187 patients, of whom about half used the drug while the others used a dummy pill, or placebo. It found that patients using Zoloft had statistically significant improvements to their condition, as assessed by several standard psychological tests, although it didn't cure the condition. Brady also said about 30 percent of the patients taking the drug didn't respond to the treatment, a failure rate that is typical with SSRIs. Brady said other studies had shown that Prozac, Eli Lilly & Co.'s SSRI and the world's best-selling antidepressant, appeared to have a similar effect among civilians with post-traumatic stress syndrome, although neither drug appeared to be effective for war combat veterans, a group of people that typically contains many sufferers from the syndrome. Treatments Prove Elusive A treatment for post-traumatic stress syndrome, which first became widely recognized during the Vietnam War, has eluded researchers for years, Brady said, even though many drugs have been tested for their ability to treat the condition. Zoloft, Prozac and SmithKline Beecham Plc's Paxil, the three biggest-selling SSRIs, have been successful in recent years as treatments for depression. Prozac alone generated $2.56 billion in 1997 sales, an industry blockbuster by any standard. Any approval to sell a drug for a new conditions typically boosts the drug's sales, and drugmakers routinely sponsor clinical trials to expand the use of their drugs. SmithKline Beecham, for instance, said this year it planned to seek approval for Paxil to be used as a treatment for social phobia, which doctors say is an irrational fear of strangers or social contact. Only the U.K. has so far approved Paxil to treat social phobia. --Dane Hamilton in Paris, through the London newsroom (44-171) news.com