WILMINGTON, Del., June 10 /PRNewswire/ -- Today, the U.S. Food and Drug Administration (FDA) Psychopharmacologic Drugs Advisory Committee conducted a review of the efficacy and safety of supplemental new drug applications (sNDAs) for SEROQUEL (quetiapine fumarate) tablets proposed for the acute treatment of schizophrenia in adolescents (13-17 years of age), and the acute treatment of bipolar mania in children and adolescents (10-17 years of age).
The Advisory Committee voted as follows: Questions to the Advisory Committee Yes No Abstain 1. Has Seroquel been shown to be effective for the treatment of schizophrenia in pediatric patients ages 13-17? 17 1 0 2. Has Seroquel been shown to be acceptably safe for the treatment of schizophrenia in pediatric patients ages 13-17? 16 0 2 3. Has Seroquel been shown to be effective for the treatment of bipolar mania in pediatric patients ages 10-17? 17 0 1 4. Has Seroquel been shown to be acceptably safe for the treatment of bipolar mania in pediatric patients ages 10-17? 13 0 5
Howard Hutchinson, M.D., Chief Medical Officer of AstraZeneca, said: "We are pleased that the committee found SEROQUEL to be effective and acceptably safe for treating adolescents with schizophrenia and children and adolescents with bipolar mania, and we look forward to having further discussions with the FDA regarding the sNDAs."
The current approved indications for SEROQUEL are unchanged. SEROQUEL is not approved for use in patients under the age of 18 in any country.
The FDA frequently convenes advisory committee meetings to obtain independent expert guidance and recommendations on clinical matters. While the FDA is not required to follow this guidance, the agency usually takes the advice into consideration when rendering its final decisions on pending applications and other public health matters.
SEROQUEL was first approved in the US in 1997 and is currently approved for adults in the treatment of depressive episodes in bipolar disorder; acute manic episodes in bipolar I disorder, as either monotherapy or adjunct therapy to lithium or divalproex; for the maintenance treatment of bipolar I disorder as adjunct therapy to lithium or divalproex; and for the treatment of schizophrenia. The safety of SEROQUEL has been evaluated in clinical trials with thousands of adult patients and continues to be reviewed by the FDA.
Important Safety Information for SEROQUEL
SEROQUEL is indicated for the treatment of depressive episodes in bipolar disorder; acute manic episodes in bipolar I disorder, as either monotherapy or adjunct therapy to lithium or divalproex; for the maintenance treatment of bipolar I disorder as adjunct therapy to lithium or divalproex; and schizophrenia. Patients should be periodically reassessed to determine the need for continued treatment and the appropriate dose.
Elderly patients with dementia-related psychosis treated with atypical antipsychotic drugs are at an increased risk (1.6 to 1.7 times) of death, compared to placebo (4.5% vs. 2.6%, respectively). SEROQUEL is not approved for the treatment of patients with dementia-related psychosis. (See Boxed Warning.)
Antidepressants increased the risk of suicidal thinking and behavior in children, adolescents, and young adults in short-term studies of major depressive disorder and other psychiatric disorders. Patients of all ages started on therapy should be observed closely for clinical worsening, suicidality, or unusual changes in behavior. Families and caregivers should be advised of the need for close observation and communication with the prescriber. SEROQUEL is not approved for use in patients under the age of 18 years. (See Boxed Warning.)
Hyperglycemia, in some cases extreme and associated with ketoacidosis, hyperosmolar coma, or death, has been reported in patients treated with atypical antipsychotics, including SEROQUEL. The relationship of atypical use and glucose abnormalities is complicated by the possibility of increased risk of diabetes in the schizophrenic population and the increasing incidence of diabetes in the general population. However, epidemiological studies suggest an increased risk of treatment-emergent, hyperglycemia-related adverse reactions in patients treated with atypical antipsychotics. Patients starting treatment with atypical antipsychotics who have or are at risk for diabetes should undergo fasting blood glucose testing at the beginning of and periodically during treatment. Patients who develop symptoms of hyperglycemia should also undergo fasting blood glucose testing.
In long-term clinical trials of quetiapine, hyperglycemia (fasting glucose >/= 126 mg/dL) was observed in 10.7% of patients receiving quetiapine (mean exposure 213 days) vs.4.6% in patients receiving placebo (mean exposure 152 days).
Clinically significant increases in cholesterol (7%-16% for quetiapine vs. 3%-9% for placebo) and triglycerides (8%-23% for quetiapine vs. 5%-16% for placebo) have been observed in clinical trials.
The proportion of patients in clinical trials meeting a weight gain criterion of >/= 7% of body weight was 5%-23% for quetiapine vs. 0%-7% for placebo.
A potentially fatal symptom complex, sometimes referred to as Neuroleptic Malignant Syndrome (NMS), has been reported in association with administration of antipsychotic drugs, including SEROQUEL. Rare cases of NMS have been reported with SEROQUEL. Clinical manifestations of NMS are hyperpyrexia, muscle rigidity, altered mental status, and evidence of autonomic instability (irregular pulse or blood pressure, tachycardia, diaphoresis, and cardiac dysrhythmia). Additional signs may include elevated creatine phosphokinase, myoglobinuria (rhabdomyolysis), and acute renal failure. The management of NMS should include immediate discontinuation of antipsychotic drugs.
Leukopenia, neutropenia, and agranulocytosis (including fatal cases), have been reported temporally related to atypical antipsychotics, including SEROQUEL. Patients with a pre-existing low white blood cell (WBC) count or a history of drug induced leukopenia/neutropenia should have their complete blood count monitored frequently during the first few months of therapy. In these patients, SEROQUEL should be discontinued at the first sign of a decline in WBC absent other causative factors. Patients with neutropenia should be carefully monitored, and SEROQUEL should be discontinued in any patient if the absolute neutrophil count is 1000/mm3.
Tardive dyskinesia (TD), a potentially irreversible syndrome of involuntary dyskinetic movements, may develop in patients treated with antipsychotic drugs. The risk of developing TD and the likelihood that it will become irreversible are believed to increase as the duration of treatment and total cumulative dose of antipsychotic drugs administered to the patient increase. TD may remit, partially or completely, if antipsychotic treatment is withdrawn. SEROQUEL should be prescribed in a manner that is most likely to minimize the occurrence of TD.
Warnings and Precautions also include the risk of orthostatic hypotension, cataracts, seizures, hyperprolactinemia, and possibility of suicide attempts. Examination of the lens by methods adequate to detect cataract formation, such as slit lamp exam or other appropriately sensitive methods, is recommended at initiation of treatment or shortly thereafter, and at 6-month intervals during chronic treatment. The possibility of a suicide attempt is inherent in schizophrenia, and close supervision of high risk patients should accompany drug therapy.
The most commonly reported adverse reactions associated with the use of SEROQUEL vs. placebo in clinical trials for schizophrenia and bipolar disorder were somnolence (18%-57% vs. 8%-15%), dry mouth (9%-44% vs. 3%-13%), dizziness (9%-18% vs. 5%-7%), constipation (8%-10% vs. 3%-5%), asthenia (5%-10% vs. 3%-4%), abdominal pain (4%-7% vs. 1%-3%), postural hypotension (4%-7% vs. 1%-2%), pharyngitis (4%-6% vs. 3%), weight gain (5%-6% vs. 1%-3%), lethargy (5% vs. 2%), nasal congestion (5% vs. 3%), SGPT increased (5% vs. 1%), and dyspepsia (5%-7% vs. 1%-4%).
Please see Prescribing Information, including Boxed Warnings for SEROQUEL.
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