Study Shows Paxil CR(TM) Is Effective and Generally Well-Tolerated For Patients With Social Anxiety Disorder
17 Fevereiro 2004 - 11:01AM
PR Newswire (US)
Study Shows Paxil CR(TM) Is Effective and Generally Well-Tolerated
For Patients With Social Anxiety Disorder Paxil CR, the First and
Only Controlled-Release SSRI Approved for Social Anxiety Disorder,
Demonstrated a Low Rate of Patient Dropouts in the Study
PHILADELPHIA, Feb. 17 /PRNewswire-FirstCall/ -- GlaxoSmithKline's
Paxil CR(TM) (paroxetine HCl) Controlled-Release Tablets is a
generally well-tolerated treatment for social anxiety disorder,
according to a study published in the February issue of the Journal
of Clinical Psychiatry. In the study, approximately three times as
many patients taking Paxil CR achieved remission compared to
placebo. In addition, dropout rates due to adverse events such as
sexual dysfunction were low and comparablefor both treatment
groups. These findings are important since discontinuation of
treatment is a well-recognized issue in managing social anxiety
disorder. Recently approved for the treatment of social anxiety
disorder, Paxil CR is the first and only controlled-release SSRI
(selective serotonin reuptake inhibitor) indicated for this
condition. Paxil CR is also indicated for the treatment of
depression, panic disorder and premenstrual dysphoric disorder
(PMDD). "This data are significant because itshows that patients
with social anxiety disorder, which is the most common anxiety
disorder, who take Paxil CR can effectively manage their symptoms
with a low rate of patient dropouts due to adverse events that are
commonly associated with SSRIs," said Dr. Murray Stein, Professor
of Psychiatry, University of California San Diego. "Our hope is
that patients will be better able to maintain a drug treatment
regimen, thus increasing the likelihood of remission and improved
outcomes." Social anxiety disorder, also known as social phobia, is
the most common type of anxiety disorder, affecting millions of
Americans. People with social anxiety disorder have an intense fear
of being scrutinized by other people in social or performance
situations. When exposed to "common" social situations such as
meetings, classes, parties, speaking in public and talking to
strangers or authority figures, people with social anxiety disorder
have literally become marked, "sick with fear," and often develop
symptoms including rapid heartbeat, sweating, shaking and upset
stomach. Some people with social anxiety disorder avoid these
situations all together, severely limiting their life, work and
social relationships. Additionally, in 70 to 80 percent of cases,
social anxiety disorder is complicated by the presence of
additional psychiatric conditions such as depression or panic
disorder, which add to the burden of the condition. Paxil CR
Significantly Improved Symptoms of Social Anxiety Disorder In this
multi-center, randomized, double-blind, placebo-controlled,
flexible-dose study, patients with social anxiety disorder were
randomly assigned to receive Paxil CR(TM) (paroxetine HCl)
Controlled-Release Tablets (flexible dose: 12.5 mg to 37.5 mg/day)
(n=186) or placebo (n=184) for 12 weeks of treatment following a
one-week, single-blind, placebo run-in period. The primary efficacy
measures were the change from baseline in the Liebowitz Social
Anxiety Scale (LSAS) and proportion of responders based on the
Clinical Global Impression (CGI), Global Improvement score.
Patients who received Paxil CR experienced a statistically
significant reduction in the LSAS total score and in both the Fear
or Anxiety and Avoidance subscales compared to those patients
randomizedto placebo. In the CGI Global Improvement responder
analysis, nearly twice as many patients treated with Paxil CR
achieved a score of "very much improved" or "much improved,"
compared to patients treated with placebo. Furthermore,
approximately threetimes as many patients treated with Paxil CR
achieved clinical remission, compared to patients treated with
placebo. The American Psychiatric Association (APA) recognizes
discontinuation of treatment as an issue to managing anxiety and
depression. Studies show that more than 40 percent of patients drop
out of treatment within the first 90 days. To achieve full
remission, the APA recommends continued treatment for four to five
months. Controlled-Release Paxil CR Tablets Paxil CR(TM)
(paroxetine HCl) Controlled-Release Tablets offers the proven
efficacy of paroxetine in a Geomatrix oral drug delivery system.
The tablet is a multi-layered formulation that controls dissolution
and allows absorption of the drug further down in the small
intestine.Paxil CR offers flexible dosing with three dosing
strengths: 12.5 mg, 25 mg, and 37.5 mg. Geomatrix technology is
licensed from SkyePharma PLC (NASDAQ:SKYE/LSE:SKP). Most common
adverse events (incidence of 5 percent or greater incidence for
Paxil CR and at least twice that for placebo) in studies for major
depressive disorder, panic disorder, PMDD and social anxiety
disorder include infection, trauma, nausea, diarrhea, dry mouth,
constipation, decreased appetite, somnolence, dizziness, decreased
libido, tremor, yawning, sweating, abnormal vision, asthenia,
insomnia, abnormal ejaculation, female genital disorders and
impotence. Patients should not be abruptly discontinued from
antidepressant medication, including Paxil CR. Concommitant use of
Paxil CR in patients taking monoamine oxidase inhibitors (MAOIs) or
thioridazine is contraindicated. For more information on Paxil CR
log on to http://www.paxilcr.com/, or for patients who are being
treated with Paxil CR, visit CRBalance.com. About GlaxoSmithKline
GlaxoSmithKline -- one of the world's leading research-based
pharmaceutical and healthcare companies -- is committed to
improving the quality of human life by enabling people to do more,
feel better and live longer. Company information line:
1-888-825-5249. Web site address: http://www.gsk.com/. DATASOURCE:
GlaxoSmithKline CONTACT: Nancy Leone of GlaxoSmithKline,
+1-919-483-2839; or Amy Takis of Cohn & Wolfe, +1-212-798-9521,
for GlaxoSmithKline Web site: http://www.paxilcr.com/
http://www.gsk.com/
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