Clinical trial NCT00395915: Randomized Evaluation of the Effectiveness of Clozapine and Aripiprazole Versus Clozapine and Haloperidol in the Treatment of Schizophrenia
Official title: Randomized Evaluation of the Effectiveness of Clozapine and Aripiprazole Versus Clozapine and Haloperidol in the Treatment of Schizophrenia. An Independent, Pragmatic, Multicentre, Parallel-Group, Superiority Trial.
Study type: INTERVENTIONAL
Overall status: UNKNOWN
Phase: PHASE4
Conditions: Schizophrenia
Keywords: schizophrenia
antipsychotics
treatment non response
pragmatic trial
Lead sponsor: Universita di Verona
Sponsor class: OTHER
First posted: 2006-11-06
Enrollment: 106
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: The principal clinical question to be answered by CHAT (Clozapine Haloperidol Aripiprazole Trial) is the relative efficacy and tolerability of combination treatment with clozapine plus aripiprazole compared to combination treatment with clozapine plus haloperidol in patients with an incomplete response to treatment with clozapine over an appropriate period of time.


Eligibility criteria: Inclusion Criteria:

1. Current treatment with clozapine for the primary indication of schizophrenia (clinical diagnosis, guided by DSM-IV criteria).
2. Treatment with clozapine for at least six months at a stable dose of 400 mg or more per day, unless the size of the dose was limited by side-effects.
3. Unsatisfactory benefit from clozapine treatment, as indicated by the presence of positive symptoms (delusions, hallucinations, abnormal behaviour, clinical diagnosis)
4. Age 18 and above.
5. Agreement between investigator and patient to enter the study.
6. The patient is normally resident in Italy.
7. It is considered clinically reasonable to try combination treatment with clozapine and aripiprazole or with clozapine and haloperidol.
8. Uncertainty about which trial treatment would be best for the participant.
9. No medical disorder or condition contraindicates either of the investigational drugs.
10. Agreement between investigator and patient to discontinue any antipsychotic drugs other than clozapine (including long-acting antipsychotic drugs).

Primary outcomes:
measure: Withdrawal from allocated treatment within 3 months.
Secondary outcomes:
measure: Withdrawal from allocated treatment within 12 months of follow-up.
measure: Time to withdrawal from allocated treatment.
measure: Severity of illness, measured at month 3 and 12.
measure: Withdrawal from study treatment, due to adverse reactions, within 3 and 12 months.
measure: Concurrent use of adjunctive medication within 3 and 12 months.
measure: Concurrent use of antiparkinson medication within 3 and 12 months.
measure: Adverse events within 3 and 12 months.
measure: Biological parameters, measured at month 3 and 12.
measure: Metabolic syndrome within 3 and 12 months.
measure: Subjective tolerability of antipsychotic drugs, measured at month 3 and 12.
measure: Deliberate self-harm within 3 and 12 months.
Other outcomes:
Locations:
city: Verona
country: Italy
facility: University of Verona
Study officials:
affiliation: Universita di Verona
name: Michele Tansella, MD
role: STUDY_CHAIR
References:
citation: Cipriani A, Accordini S, Nose M, Purgato M, Girlanda F, Tansella M, Barbui C. Aripiprazole versus haloperidol in combination with clozapine for treatment-resistant schizophrenia: a 12-month, randomized, naturalistic trial. J Clin Psychopharmacol. 2013 Aug;33(4):533-7. doi: 10.1097/JCP.0b013e318296884f.
citation: Barbui C, Accordini S, Nose M, Stroup S, Purgato M, Girlanda F, Esposito E, Veronese A, Tansella M, Cipriani A; CHAT (Clozapine Haloperidol Aripiprazole Trial) Study Group. Aripiprazole versus haloperidol in combination with clozapine for treatment-resistant schizophrenia in routine clinical care: a randomized, controlled trial. J Clin Psychopharmacol. 2011 Jun;31(3):266-73. doi: 10.1097/JCP.0b013e318219cba3.
citation: Nose M, Accordini S, Artioli P, Barale F, Barbui C, Beneduce R, Berardi D, Bertolazzi G, Biancosino B, Bisogno A, Bivi R, Bogetto F, Boso M, Bozzani A, Bucolo P, Casale M, Cascone L, Ciammella L, Cicolini A, Cipresso G, Cipriani A, Colombo P, Dal Santo B, De Francesco M, Di Lorenzo G, Di Munzio W, Ducci G, Erlicher A, Esposito E, Ferrannini L, Ferrato F, Ferro A, Fragomeno N, Parise VF, Frova M, Gardellin F, Garzotto N, Giambartolomei A, Giupponi G, Grassi L, Grazian N, Grecu L, Guerrini G, Laddomada F, Lazzarin E, Lintas C, Malchiodi F, Malvini L, Marchiaro L, Marsilio A, Mauri MC, Mautone A, Menchetti M, Migliorini G, Mollica M, Moretti D, Mule S, Nicholau S, Nose F, Occhionero G, Pacilli AM, Pecchioli S, Percudani M, Piantato E, Piazza C, Pontarollo F, Pycha R, Quartesan R, Rillosi L, Risso F, Rizzo R, Rocca P, Roma S, Rossattini M, Rossi G, Rossi G, Sala A, Santilli C, Sarao G, Sarnicola A, Sartore F, Scarone S, Sciarma T, Siracusano A, Strizzolo S, Tansella M, Targa G, Tasser A, Tomasi R, Travaglini R, Veronese A, Ziero S. Rationale and design of an independent randomised controlled trial evaluating the effectiveness of aripiprazole or haloperidol in combination with clozapine for treatment-resistant schizophrenia. Trials. 2009 May 15;10:31. doi: 10.1186/1745-6215-10-31.