Lieberman 2001.

Trial name or title	Risperidone and clozapine in chronic schizophrenia.
Methods
Participants	People severely ill with treatment resistant schizophrenia.
Interventions	1. Risperidone: 6 mg/day. 2. Risperidone: 16 mg/day. 3. Haloperidol. 4. Clozapine.
Outcomes	Global state: CGI. Mental state: PANSS. Behaviour: NOSIE, Overt Aggression Scale. Social improvement: Quality of Life Interview. Cognitive effects. Adverse effects: ESRS.
Starting date
Contact information	Sites of study: Bronx Psychiatric Centre (J Lieberman. Rockland Psychiatric Center, Manhattan Psychiatric Center (J Volavka)
Notes	Allocation: random. Blindness: double. Duration: 12 weeks.