The
application to the FDA follows the completion of
a comprehensive clinical trial programme in
bipolar disorder undertaken by AstraZeneca. The
trials examined the efficacy and tolerability of
quetiapine in the treatment of acute mania on two
levels: as monotherapy (i.e to be prescribed on
its own) and as adjunctive therapy with standard
mood stabilising medication. These clinical
trials have delivered strong and positive results
in both the monotherapy and adjunctive therapy
studies, which confirm quetiapine to be an ideal
first line therapy for the treatment of acute
mania associated with bipolar disorder.
"Quetiapine is destined to be an important
treatment option for patients suffering from
bipolar disorder" commented Dr. Gary Sachs
from Harvard Medical School, Boston, and lead
investigator on the studies. "Treatment
compliance in bipolar disorder is particularly
critical since patients may lead full and
productive lives when stable while a relapse in
symptoms can cause real difficulties. The ability
of quetiapine to improve the symptoms of the
disease while keeping side effects to a minimum,
may improve quality of life and ultimately lead
to greater compliance with medication, offering
real benefits for patients and their families."
The trial programme consisted of four studies
involving almost 1000 patients in 28 countries.
The results from one of the adjunctive therapy
studies were presented earlier this year at the 3rd
European Stanley Foundation Conference in Bipolar
Disorder, in Germany1. The results from this
trial showed that quetiapine, in combination with
standard mood stabilising medication (lithium or
divalproex), is significantly more effective at
treating the acute mania associated with bipolar
disorder than mood stabilisers alone.
Importantly, the results also showed that
quetiapine in combination with mood stabilisers
is well tolerated a major consideration in
the treatment of this disorder. The results from
the remaining monotherapy studies will be
presented at major psychiatry conferences in 2003.
"We are very pleased with the results of the
trial programme and are extremely optimistic
about the future for Seroquel. Seroquel is a
truly unique compound and its profile is ideal
for the treatment of bipolar disorder"
commented Geoff Birkett, Global Vice President,
CNS, Pain and Infection. "Success in the
market is driven by the impact on patients and
our vision to introduce therapies that truly
change patients' lives for the better. With its
expanded indication range, Seroquel will continue
to help patients and is the cornerstone of our
rapidly growing CNS business."
Seroquel (quetiapine) is manufactured by
AstraZeneca and is currently approved in over 75
markets. Seroquel combines broad-based efficacy
in the treatment of positive, negative, cognitive
and affective symptoms of schizophrenia, while
offering excellent tolerability. Seroquel is
associated with an incidence of EPS and prolactin
elevation no different to placebo across the full
dosage range, a favourable weight profile, and no
clinically important effects on QT interval. To
date, over 4 million people have been treated
with Seroquel worldwide.
AstraZeneca is a major international healthcare
business engaged in the research, development,
manufacture and marketing of prescription
pharmaceuticals and the supply of healthcare
services. It is one of the top five
pharmaceutical companies in the world with
healthcare sales of over $16.4 billion and
leading positions in sales of gastrointestinal,
oncology, anaesthesia (including pain management),
cardiovascular, central nervous system (CNS) and
respiratory products. In CNS, AstraZeneca is
dedicated to providing medicines that offer the
potential to change patients' lives. The company
already markets Seroquel, one of the fastest
growing global antipsychotics with proven
efficacy and a very favourable side effect
profile; and Zomig, a reliable migraine therapy
and a leader in the triptan market. AstraZeneca's
R&D pipeline also includes leading approaches
for the treatment of depression and anxiety,
overactive bladder, dementia and stroke.