Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Randomized, Double-Blind Comparison of LY2140023, Olanzapine, and Placebo in the Treatment of Patients With Schizophrenia
Brief Summary: Assess the efficacy of a new drug (a receptor agonist that modulates the glutamatergic activity) in the treatment of schizophrenia.

The primary objective of this study is to determine if a mGlu2/3 agonist dosed for 28 days is superior to placebo in the treatment of patients with schizophrenia as measured by the Positive and Negative Symptom Scales (PANSS) total score.


Options:
A: Current diagnosis of an acute exacerbation of either schizophrenia or schizoaffective disorder
B: Inclusion Criteria:

* meet the DSM-IV criteria for schizophrenia as confirmed by modified SCID

Exclusion Criteria:

* meet the full syndromal criteria for other Axis I disorder
* have taken any depot antipsychotic within 4 weeks before screening
* are taking mood-stabilizing agents
C: Inclusion Criteria:

* Diagnosis of schizophrenia as defined in the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision (DSM-IV-TR); and confirmed by the Structured Clinical Interview for DSM-IV-TR (SCID)
* Non pregnant female patients who agree to use acceptable birth control
* Participants must be considered moderately ill in the opinion of the investigator
* Patients in whom a modification of antipsychotic medication or initiation of antipsychotic medication is acutely indicated in the opinion of the investigator
* Willing to participate in a minimum of 2 weeks of inpatient hospitalization
* One year history of Schizophrenia prior to entering the study
* At study entry patients with a history of antipsychotic treatment must have a lifetime history of at least one hospitalization for the treatment of schizophrenia, not including the hospitalization required for study. Patients who have never taken antipsychotic treatment may enter the study even without a history of hospitalization.
* At study entry patients with a history of antipsychotic treatment must have a history of at least one episode of illness exacerbation requiring an intensification of treatment intervention or care in the last 2 years, not including the present episode of illness. Patients who have never taken antipsychotic treatment may enter the study without a past history of illness exacerbation and intensification of treatment in the last 2 years.
* At study entry patients must have experienced an exacerbation of illness within the 2 weeks prior to entering the study, leading to an intensification of psychiatric care in the opinion of the investigator. If exacerbation occurs in patients who are presently hospitalized, the patient must not have been hospitalized longer than 60 days at entry of the study.
* Patients must be considered reliable and have a level of understanding sufficient to perform all tests and examinations required by the protocol, and be willing to perform all study procedures

Exclusion Criteria:

* Patients who have a history of inadequate clinical response to antipsychotic treatment for schizophrenia
* Diagnosis of substance dependence or substance abuse within 6 month of study entry
* Diagnosis of substance-induced psychosis within 7 days of study entry
* Currently enrolled in, or discontinued within 6 months from a clinical trial involving an investigational product or unapproved use of a drug or device
* Participated in any clinical trial with any pharmacological treatment intervention for which they received a study-related medication in the 6 months prior to study entry
* Previously completed or withdrawn from this study, or any other study investigating LY2140023 or any predecessor molecules with glutamatergic activity
* Treatment with clozapine at doses greater than 200 mg daily within 12 months prior to entering the study, or who have received any clozapine at all during the month before study entry
* Patients currently receiving treatment (within 1 dosing interval, minimum of 4 weeks, prior entering the study) with a depot formulation of an antipsychotic medication
* Patients who are currently suicidal
* Females who are pregnant, nursing, or who intend to become pregnant within 30 days of completing the study
* Patients with uncorrected narrow-angle glaucoma, uncontrolled diabetes, certain diseases of the liver, renal insufficiency, uncontrolled thyroid condition or other serious or unstable illnesses
* Have a history of one or more seizures
* Electroconvulsive therapy (ECT) within 3 months of entering the study or who will have ECT at any time during the study
* History of low white blood cell count
* Medical history of Human Immunodeficiency Virus positive (HIV+) status.
* Higher than normal blood prolactin levels
* Abnormal electrocardiogram results
D: Some Inclusion Criteria:

* Patients must have a diagnosis of Schizophrenia as defined in Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) (Disorganized, 295.10; Catatonic, 295.20; Paranoid, 295.30; Residual, 295.60; or Undifferentiated, 295.90) and confirmed by the Structured Clinical Interview for DSM-IV (SCID).
* Patients must meet the following psychopathologic severity criteria at Visit 1: Brief Psychiatric Rating Scale (BPRS) total score, extracted from the Positive and Negative Syndrome Scale (PANSS), of at least 45 (18-item version, in which 1 indicates "absent" and 7 indicates "severe"). In addition, item scores of at least 4 (moderate) will be required on 2 of the following BPRS items: conceptual disorganization, suspiciousness, hallucinatory behavior, and/or unusual thought content.
* Patients must receive a rating of 4 (moderately ill) or greater on the Clinical Global Impression-Severity (CGI-S) scale at Visit 1.
* Patients in whom, in the opinion of the investigator, a switch to another antipsychotic medication or initiation of an antipsychotic medication is acutely indicated.

Some Exclusion Criteria:

* Patients in whom treatment with olanzapine or placebo is relatively or absolutely clinically contraindicated.
* Patients who have a history of inadequate response to an adequate treatment trial with olanzapine, in the opinion of the investigator.
* Patients who have received treatment with olanzapine within 6 weeks prior to Visit 1.
* Patients who have received treatment with clozapine at doses greater than 200 mg daily within 12 months prior to Visit 1, or who have received any clozapine at all during the month before Visit 1.
* Patients who have a history of an inadequate response, in the opinion of the investigator, to 2 or more adequate antipsychotic medication trials of at least 8 weeks duration in the past 12 months prior to Visit 1.
* Patients with acute, serious, or unstable medical conditions, including (but not limited to) inadequately controlled diabetes (hemoglobin A1c (HbA1c) 8%), severe hypertriglyceridemia (fasting triglycerides 5.6 mmol/L, recent cerebrovascular accidents, serious acute systemic infection or immunologic disease, unstable cardiovascular disorders (including ischemic heart disease), malnutrition, hepatic, renal, gastroenterologic, respiratory, endocrinologic, neurologic, or hematologic diseases.

Answer: B