Are pregnant or lactating. 
Have participated in any other studies involving investigational products within 30 days prior to entry into this study. 
Are undergoing an acute withdrawal syndrome from drugs or alcohol. 
Have an Axis I diagnosis of Schizophrenia, Schizoaffective Disorder, Schizophreniform Disorder or Bipolar I Disorder as diagnosed by the Structured Clinical Interview for DSM-IV Axis I Disorders (SCID-I), and pertinent subsequent for ruling out exclusionary diagnoses. 
Have an unstable medical disorder as determined by physical examination or laboratory testing. The primary investigator will be responsible for making this judgment based on the above. 
Had an unsatisfactory response to a previous adequate trial of quetiapine as judged by a study investigator. 
Patients cannot begin psychotherapy during the study period, but may continue if started prior to the study. 
Patients who are currently receiving quetiapine therapy may not undergo a washout period and then restart quetiapine in the study.       
    

NCT00122070_exc_T1
Condition
pregnant
NCT00122070_exc_T2
Condition
lactating
NCT00122070_exc_T3
Observation
Have participated in any other studies involving investigational products
NCT00122070_exc_T4
Temporal
within 30 days prior to entry into this study
NCT00122070_exc_T5
Reference_point
entry into this stud
NCT00122070_exc_T6
Condition
acute withdrawal syndrome
NCT00122070_exc_T7
Drug
drugs
NCT00122070_exc_T8
Drug
alcohol
NCT00122070_exc_T9
Scope
drugs or alcohol
NCT00122070_exc_T10
Condition
Schizophrenia
NCT00122070_exc_T11
Condition
Schizoaffective Disorder
NCT00122070_exc_T12
Condition
Schizophreniform Disorder
NCT00122070_exc_T13
Condition
Bipolar I Disorder
NCT00122070_exc_T18
Procedure
Structured Clinical Interview for DSM-IV Axis I Disorders (SCID-I)
NCT00122070_exc_T19
Scope
Schizophrenia, Schizoaffective Disorder, Schizophreniform Disorder or Bipolar I Disorder