Assessment of a Weight Management Program for Weight Gain in Patients With Schizophrenia

Inclusion Criteria: * Male and female patients between the ages of 18 and 65 years (inclusive) * Subjects must meet the DSM-IV criteria for schizophrenia, schizoaffective disorder, or schizophreniform disorder * Subjects must have been treated with olanzapine (5 to 20 mg/day) for at least 12 weeks prior to study entry and who experienced a weight gain of greater than or equal to 7% of body weight during olanzapine treatment Exclusion Criteria: * Treatment with an injectable depot neuroleptic 14 days before visit 1 * Subjects with an PANSS score greater than 70 * One or more seizures without a clear and unresolved etiology * Known diagnosis of DSM-IV substance dependence (except nicotine and caffeine) within the past 2 months, which in the opinion of the investigator is affecting the diet and/or weight of the subject * As a result of liver function test, ALT/AST ranges are shown twice the upper limit of the normal reference range