Please select the eligibility criteria that correspond to the clinical trial below.
Title: Predicting Response to Risperidone Treatment Through Identification of Early-onset of Antipsychotic Drug Action in Schizophrenia.
Brief Summary: The current study has been designed to address the significance of early onset of response prospectively in patients treated with an atypical antipsychotic.


Options:
A: Inclusion Criteria:

* Inclusion Criteria: Men and women, age 18-65 years with persistent positive or negative symptoms with a PANSS total score of ≥ 70 and \< 110 and a Clinical Global Improvement (CGI)- Severity of Illness score of at least 4 (moderately ill) at screening. Subjects may be treated as in- or out-patients. Subjects must give written informed consent.

Exclusion Criteria:

* Subjects with other psychiatric, medical or behavioural comorbid disorder that may interfere with study conduct or interpretation.
* Female of childbearing potential, unless the subject is using a reliable method of contraception
* Subjects with alcohol or psychoactive-substance dependence not in full remission or with significant alcohol or substance abuse in the past 3 months will be excluded.
* Laboratory test results outside the range of reference considered by the investigator to be clinically significant.
* Inability to respect the visit schedule and known intolerance to quetiapine at 800mg/day.
B: Inclusion Criteria:

* Male and female patients, aged 18-65 years (extremes included), suffering from schizophrenia
* Positive and Negative Syndrome Scales (PANSS) total score between 60 and 120 (extremes included) at screening and baseline
* Based on the patient's clinical status, an antipsychotic treatment is indicated
* Otherwise healthy
* Female patients of non-childbearing potential, or non-pregnant, not breast-feeding women of childbearing potential, using adequate birth control methods

Exclusion Criteria:

* Current Axis I primary psychiatric diagnosis other than schizophrenia
* Has never before received antipsychotic drugs
* Has received a depot antipsychotic medication within less than one dose interval prior to Screening
* History of clinically significant cardiovascular disease, congestive heart failure, cardiac hypertrophy, arrhythmia or bradycardia (\<50 beats per minute)
* Congenital long QT syndrome or a family history of this disease, or in patients with known acquired QT interval prolongation (QTc above 450 msec in males and 470 msec in females at Screening)
* Significant risk of suicide and/or violent behaviour
* Known history of narrow angle glaucoma
* Substance or alcohol abuse, current alcohol dependence
* Use of disallowed concomitant medication

Other protocol-defined inclusion and exclusion criteria may apply.
C: Inclusion Criteria:

* Patients must demonstrate acute psychopathologic severity criteria and be at least moderately ill.
* Patients must have experienced an exacerbation of their illness within the previous 2 weeks.
* Patients in whom a switch to another antipsychotic medication is acutely indicated.

Exclusion Criteria:

* Patients who are deemed nonresponsive to risperidone or olanzapine.
* Patients who have been hospitalized for greater than 2 weeks immediately prior to Visit 1.
* Patients having received olanzapine or risperidone in the past 30 days.
* Treatment with clozapine within 1 year prior to Visit 1.
* Diagnosis of substance-induced psychosis by Diagnostic and Statistical Manual of Mental Disorders Fourth Edition (DSM-IV) criteria within 7 days of Visit 1 (or at any time during the study), or confirmed on clinical grounds within 72 hours subsequent to Visit 1 (or at any time during the study).
* A diagnosis of Parkinson's disease, dementia-related psychosis, or related disorders.
D: Inclusion Criteria:

* Subject ≥ 18 years of age.
* Subject meets DSM-IV criteria for a primary diagnosis of schizophrenia or schizoaffective disorder.
* Subject must be judged by the investigator to be an appropriate candidate for switching current antipsychotic medication due to insufficient efficacy and/or safety or tolerability concerns.

Exclusion Criteria:

* Presence of an Axis I or Axis II disorder other than schizophrenia or schizoaffective disorder that is the primary focus of treatment prior to screening.
* Subject has experienced persistent lack of improvement in psychotic symptoms despite adequate trials (at least 6 weeks at standard doses), of two or more antipsychotic agents in the 12 months prior to screening.
* Subject is considered by the investigator to be at imminent risk of suicide or harm to self, others, or property. Subject has suicidal ideation at baseline or has attempted suicide within 90 days prior to randomization (even without hospitalization).

Answer: C