Supplemental New Drug Application For RISPERDAL(R) CONSTA(R)
Submitted To The FDA For The Treatment Of Frequently Relapsing Bipolar Disorder 
16 Apr 2008
Alkermes,
Inc. (NASDAQ: ALKS) announced that its partner, Johnson & Johnson
Pharmaceutical Research & Development, L.L.C. (J&JPRD),
submitted a Supplemental New Drug Application (sNDA) for RISPERDAL®
CONSTA® [(risperidone) Long-Acting Injection] to the U.S. Food and Drug
Administration (FDA) seeking approval for adjunctive maintenance
treatment to delay the occurrence of mood episodes in patients with
frequently relapsing bipolar disorder (FRBD).

FRBD is defined as four or more manic or depressive episodes in the
previous year that require a doctor's care. The condition may affect 10
to 20 percent of the 27 million people with bipolar disorder
worldwide.1,2
The sNDA is based on results from a recent study comparing patients who
received RISPERDAL CONSTA and standard treatment to those who received
standard treatment combined with placebo. The study found that patients
with FRBD had a significant delay in the time to an initial relapse
when RISPERDAL CONSTA was combined with standard treatment. The study
was presented at the 14th Biennial Winter Workshop on Schizophrenia and
Bipolar Disorders in Montreux, Switzerland on February 3, 2008.
RISPERDAL CONSTA was approved for the treatment of schizophrenia in the
U.S. in 2003. RISPERDAL CONSTA is marketed by Janssen, Division of
Ortho-McNeil-Janssen Pharmaceuticals, Inc., in the U.S. and is
manufactured by Alkermes.
RISPERDAL CONSTA is the first and only long-acting, atypical
antipsychotic to be approved by the FDA and now is approved in more
than 80 countries worldwide. The medication uses Alkermes' proprietary
Medisorb® technology to deliver and maintain therapeutic medication
levels in the body through just one injection every two weeks.
Available in 12.5 mg, 25 mg, 37.5 mg and 50 mg dose units, RISPERDAL
CONSTA is approved for the treatment of schizophrenia. For more
information about RISPERDAL CONSTA, visit
http://www.risperdalconsta.com.
About Bipolar Disorder
It is estimated that 27 million people worldwide suffer from bipolar
disorder, also known as manic-depressive disorder. It is characterized
by debilitating mood swings, from extreme highs (mania) to extreme lows
(depression). Signs of mania include euphoria, extreme irritability or
rage, accelerated or disorganized thinking and an increase in risky
behaviors. Signs of depression include intense sadness or despair, loss
of energy, insomnia and suicidal thoughts.
Approximately 10 to 20 percent of patients with bipolar disorder seen
in mood disorder clinics are identified as "rapid-cycling" and have had
four or more episodes during the previous 12 months. The types of mood
episodes (manic, depressed, mixed) seen in these patients can occur in
any pattern. The course of their illness is characterized by a
requirement for more healthcare resources, more concomitant medications
and poorer outcomes.
Important Safety Information For Risperdal Consta
Elderly Patients with dementia-related psychosis treated with atypical
antipsychotic drugs are at an increased risk of death compared to
placebo. RISPERDAL CONSTA (risperidone) is not approved for the
treatment of patients with dementia-related psychosis.
In a study of people taking RISPERDAL CONSTA, the most common side
effects in the treatment of schizophrenia were sleepiness,
restlessness, tremors and muscle stiffness, stomach upset,
constipation, dry mouth, feeling tired and weight increase.
High blood sugar and diabetes have been reported with RISPERDAL CONSTA
and similar medications. If the person being treated has diabetes or
risk factors such as being overweight or a family history of diabetes,
blood sugar testing should be performed at the beginning and throughout
treatment with RISPERDAL CONSTA. Complications of diabetes can be
serious and even life threatening. If signs of high blood sugar or
diabetes develop, such as being thirsty all the time, going to the
bathroom a lot, or feeling weak or hungry, contact your doctor.
Tardive Dyskinesia (TD) is a serious, sometimes permanent side effect
reported with RISPERDAL CONSTA and similar medications. TD includes
uncontrollable movements of the face, tongue, and other parts of the
body. The risk of developing TD and the chance that it will become
permanent is thought to increase with the length of therapy and the
overall dose taken by the patient. This condition can develop after a
brief period of therapy at low doses, although this is much less
common. There is no known treatment for TD, but it may go away
partially or completely if therapy is stopped.
Neuroleptic Malignant Syndrome (NMS) is a rare and potentially fatal
side effect reported with RISPERDAL CONSTA and similar medicines. Call
your doctor immediately if the person being treated develops symptoms
such as high fever; stiff muscles; shaking; confusion; sweating;
changes in pulse, heart rate, or blood pressure; or muscle pain and
weakness. Treatment should be stopped if the person being treated has
NMS.
RISPERDAL CONSTA should be used cautiously in people with a seizure
disorder, who have had seizures in the past, or who have conditions
that increase their risk for seizures.
RISPERDAL CONSTA and similar medications can raise the blood levels of
a hormone known as prolactin, causing a condition known as
hyperprolactinemia. Blood levels of prolactin remain elevated with
continued use. Some side effects seen with these medications include
the absence of a menstrual period; breasts producing milk; the
development of breasts by males; and the inability to achieve an
erection. The connection between prolactin levels and side effects is
unknown.
Some people taking RISPERDAL CONSTA may feel faint or lightheaded when
they stand up or sit up too quickly. By standing up or sitting up
slowly and following your healthcare professional's dosing
instructions, this side effect can be reduced or it may go away over
time.
Inform your healthcare professional if you become pregnant or intend to
become pregnant during therapy with RISPERDAL CONSTA. Also, tell your
healthcare professional if you are planning to breast-feed.
RISPERDAL CONSTA may affect your alertness or driving ability;
therefore, do not drive or operate machinery before talking to your
healthcare professional.
Some medications interact with RISPERDAL CONSTA. Please inform your
healthcare professional of any medications or supplements that you are
taking. Avoid alcohol while on RISPERDAL CONSTA.
If you have any questions about RISPERDAL CONSTA or your therapy, talk with your doctor.
About Alkermes
Alkermes, Inc., a biotechnology company committed to developing
innovative medicines to improve patients' lives, manufactures
RISPERDAL® CONSTA® for schizophrenia and developed and manufactures
VIVITROL® for alcohol dependence. Alkermes' robust pipeline includes
extended-release injectable, pulmonary and oral products for the
treatment of prevalent, chronic diseases, such as central nervous
system disorders, addiction and diabetes. Headquartered in Cambridge,
Massachusetts, Alkermes has research and manufacturing facilities in
Massachusetts and Ohio. For more information about Alkermes, visit
http://www.alkermes.com.
Certain statements set forth above may constitute forward-looking
statements within the meaning of the Private Securities Litigation
Reform Act of 1995. Although the company believes that such statements
are based on reasonable assumptions within the bounds of its knowledge
of its business and operations, the forward-looking statements are
neither promises nor guarantees and the company's business is subject
to significant risk and uncertainties and there can be no assurance
that its actual results will not differ materially from its
expectations. These risks and uncertainties include, among others,
decisions by the FDA relating to the recently submitted sNDA for
RISPERDAL CONSTA for the treatment of FRBD. For further information
with respect to factors that could cause the company's actual results
to differ materially from expectations, reference is made to the
reports the company filed with the Securities and Exchange Commission
under the Securities Exchange Act of 1934, as amended. The
forward-looking statements made in this release are made only as of the
date hereof and the company disclaims any intention or responsibility
for updating predictions or financial expectations contained in this
release.
Medisorb is a registered trademark of Alkermes, Inc., VIVITROL is a
registered trademark of Cephalon, Inc. and RISPERDAL CONSTA is a
registered trademark of Janssen-Cilag.
References
1. The Global Burden of Disease. World Health Organization, 2003. Available
here, accessed March 20, 2008.
2. DSM-IV-TR, American Psychiatric Association, 2000.