An Efficacy and Safety Study of 3 Fixed Doses of JNJ-37822681 in Participants With Schizophrenia
Schizophrenia
About this trial
This is an interventional treatment trial for Schizophrenia focused on measuring Schizophrenia, Central Nervous System, JNJ-37822681
Eligibility Criteria
Inclusion Criteria:
- Participants must have been diagnosed with schizophrenia according to Diagnostic and Statistical Manual of Mental Disorders, 4th edition (DSM-IV) (295.10, 295.20, 295.30, 295.60, 295.90) at least 1 year prior to screening
- Participants must be experiencing an acute (a quick and severe form of illness in its early stage) exacerbation of less than 6 months duration, with a Positive and Negative Syndrome Scale (PANSS) total score at screening between 70 and 120 inclusive and at baseline of between 60 and 120 inclusive
- Women of child bearing potential must have a negative urine pregnancy test at screening and baseline before receiving the study drug
- Participants must agree to voluntary hospitalization for a minimum of 14 days
- BMI (Body Mass Index) maximum 40 kilogram per meter square (kg/m^2), inclusive (BMI=weight/height^2)
Exclusion Criteria:
- A DSM-IV axis I diagnosis other than schizophrenia
- A DSM-IV diagnosis of substance dependence within 6 months prior to screening evaluation
- Any clinically relevant medical condition that could potentially alter the absorption (the way a drug or other substance enters the body), metabolism, or excretion (the way that substances leave the body) of the study medication, such as Crohn's disease (serious inflammation of any part of the gastrointestinal tract), liver disease, or renal (pertaining to the kidneys) disease
- Relevant history of any significant and/or unstable cardiovascular (pertaining to the heart and blood vessels), respiratory, neurological (including seizures) or significant cerebrovascular (pertaining to brain and blood vessels), renal, hepatic, endocrine (pertaining to the glands that make hormones), or immunologic diseases
- History of neuroleptic malignant syndrome (high fever, rigid muscles, shaking, confusion, sweating more than usual, increased heart rate or blood pressure, or muscle pain or weakness)
Sites / Locations
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Arm 5
Placebo Comparator
Experimental
Experimental
Experimental
Active Comparator
Placebo First, Then Olanzapine
JNJ-37822681 10 mg
JNJ-37822681 20 mg
JNJ-37822681 30 mg
Olanzapine
Participants will receive 2 matching placebo capsules orally twice daily for 6 consecutive weeks, then 2 matching placebo capsules orally in the morning and olanzapine 10 milligram (mg) capsule along with matching placebo capsule orally in the evening for next 1 week, then 2 matching placebo capsules orally in the morning and olanzapine 10 mg capsule along with olanzapine 5 mg capsule orally in the evening for next 5 weeks.
Participants will receive 1 matching placebo capsule along with JNJ-37822681 10 mg capsule orally twice a day for 12 consecutive weeks.
Participants will receive 1 matching placebo capsule along with JNJ-37822681 20 mg capsule orally twice a day for 12 consecutive weeks.
Participants will receive JNJ-37822681 30 mg (one 10 mg capsule along with JNJ-37822681 20 mg capsule) orally twice a day for 12 consecutive weeks.
Participants will receive 2 matching placebo capsules orally in the morning and olanzapine 10 mg capsule along with matching placebo capsule orally in the evening for 1 week, then 2 matching placebo capsules orally in the morning and olanzapine 10 mg capsule along with olanzapine 5 mg capsule orally in the evening for next 11 consecutive weeks.