GlaxoSmithKline announced today
FDA approval of Avandamet(R) (rosiglitazone maleate and metformin HCl) for
use as initial treatment of type 2 diabetes as an adjunct to diet and
exercise. Avandamet was previously approved as a second-line therapy — it
was indicated for use in patients who were uncontrolled on metformin
monotherapy. Now, with this recent approval, physicians can start their
type 2 diabetes patients on Avandamet.
Avandamet is the only combination of a thiazolidinedione, rosiglitazone
maleate (separately marketed as Avandia(R)) and metformin HCl, with
approved use as initial therapy of type 2 diabetes. Avandamet is indicated
as an adjunct to diet and exercise to improve glycemic control in patients
with type 2 diabetes mellitus when treatment with dual rosiglitazone and
metformin therapy is appropriate.
The announcement of the FDA approval for Avandamet for use as initial
therapy in type 2 diabetes coincides with GlaxoSmithKline’s announcement
that its supply of Avandamet has been re-established.
“Many people with type 2 diabetes need to take more than one medication
to treat the disease in different ways. The combination of rosiglitazone
and metformin provides two complementary mechanisms of action,” said Barry
Goldstein, M.D., Ph.D., director, Division of Endocrinology, Diabetes and
Metabolic Diseases, Jefferson Medical College of Thomas Jefferson
University, Philadelphia. “Rosiglitazone targets insulin resistance, an
underlying cause of type 2 diabetes, whereas metformin primarily works to
reduce the amount of blood sugar (or glucose) produced by the liver. In
fact, a clinical trial comparing Avandamet to both rosiglitazone alone and
metformin alone showed that patients taking Avandamet achieved
significantly lower blood sugar levels than with either monotherapy alone.”
Nearly 18 million Americans have type 2 diabetes, the most common form
of diabetes. Type 2 diabetes is characterized by high blood sugar levels
that occur when the body does not produce enough insulin or does not
respond properly to its own natural insulin, a condition called insulin
resistance. To manage diabetes, it is important for patients to achieve the
blood sugar goal set by their physicians. Blood sugar control is measured
by the HbA1C test, or A1C, which reflects a person’s average blood sugar
levels over the previous two to three months. The American Association of
Clinical Endocrinologists recommends an A1C of 6.5% or lower. The American
Diabetes Association recommends an A1C of less than 7%. Lowering blood
sugar levels can help reduce the risk of diabetes-related complications,
such as heart disease, stroke, blindness, loss of limbs and kidney disease.
“GlaxoSmithKline is committed to developing diabetes therapies to treat
a disease that has reached epidemic proportions in the United States and
throughout the world,” said Anne M. Phillips, MD, vice president of
Clinical for North America Cardiovascular-Metabolic, GlaxoSmithKline. “With
the approval of Avandamet for use as initial therapy as an adjunct to diet
and exercise, GSK offers this effective and convenient option now for
initial treatment of type 2 diabetes. This combination of rosiglitazone and
metformin can help patients get their blood sugar under control.”
Importance of Aggressive Diabetes Management
Diabetes experts are setting more stringent standards that reflect the
importance of maintaining tight blood sugar control. “Combination therapy
with medications that work in different ways is often needed to help
patients reach and maintain blood sugar goals,” said Dr. Goldstein. “An
advantage of Avandamet is that it combines two medications with
complementary mechanisms of action in one convenient tablet.”
Avandamet: Initial Therapy in Diabetes Management
Avandamet was originally approved in the U.S. in 2002, and is available
in four tablet strengths of rosiglitazone/metformin, respectively: 2 mg/500
mg, 4 mg/500 mg, 2mg/1000mg, and 4mg/1000mg. Avandamet, as a two-in-one
therapy, is the most economical thiazolidinedione (TZD)-metformin
combination on the market.
Important Safety Information for Avandamet
Avandamet, along with diet and exercise, helps improve blood sugar
control. It is a combination of two drugs – rosiglitazone maleate and
metformin HCl.
A small number of people who have taken metformin, one of the
components of Avandamet, have developed a rare yet serious condition called
lactic acidosis (a buildup of lactic acid in the blood). Lactic acidosis
occurs most often in people with kidney problems and can be fatal in up to
one half of the cases. You should not take Avandamet if you have kidney
problems. Tests should be used to check your kidneys before and while
taking Avandamet. You should not drink alcohol excessively when taking
Avandamet. If you are taking medicines for heart failure, you may be at
increased risk of lactic acidosis.
Tell your doctor if you have heart problems or heart failure. Avandamet
can cause your body to keep extra fluid which leads to swelling and weight
gain. Extra body fluid can make some heart problems worse or lead to heart
failure. If you have swelling or fluid retention, shortness of breath or
trouble breathing, an unusually rapid increase in weight, or unusual
tiredness while taking Avandamet, call your doctor right away.
You should not take Avandamet if you have liver problems. Blood tests
should be used to check for liver problems before starting and while taking
Avandamet. Tell your doctor if you have liver disease, or if you experience
unexplained tiredness, stomach problems, dark urine or yellowing of skin
while taking Avandamet.
Tell your doctor about all of the medicines you are taking.
Avandamet may increase your risk of pregnancy.
Talk to your doctor before taking Avandamet if you could become
pregnant or if you are pregnant.
If you are nursing, you should not take Avandamet.
Your doctor should check your eyes regularly. Very rarely, some people
have experienced vision changes due to swelling in the back of the eye
while taking rosiglitazone, a component of Avandamet.
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.
Additional information about GlaxoSmithKline can be found online at
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