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Acute Schizophrenia | Pilot Study to Evaluate the Efficacy and Safety of Quetiapine Fumarate Instant-Release (Seroquel IR) in Controlling Agitation and Aggressive Symptoms in the Acute Treatment of Patients With Schizophrenia

Acute Schizophrenia research study

What is the primary objective of this study?

Quetiapine fumarate is indicated for the treatment of patients with schizophrenia in China. Lots of clinical experience and evidence has demonstrated its efficacy and tolerability for the patient population. Some evidence showed that quetiapine fumarate could control aggression and agitation within 1 week, which is appropriate for the acute treatment of patients with schizophrenia. PANSS and MOAS are the common measurements for the efficacy of psychotic symptoms controlling in the clinical trials. Generally, 2 weeks are the appropriate timeframe for the evaluation of clinical effect of agitation and aggression symptoms controlling. In adult patients with schizophrenia, quetiapine fumarate is licensed to maximal dose of 750mg/day. The target dose of quetiapine fumarate recommended in the manufacturer's prescribing information is 300-450 mg/day in China, though similar efficacy for quetiapine fumarate (600 mg/day), olanzapine (15 mg/day) and Risperidone (5 mg/day) was reported in a small, randomised, rater-blinded trial. Because of the low incidence of EPS, the limitation potential for weight gain and prolactin elevation, quetiapine fumarate should be well tolerated in this sensitive patient population with higher dose (600mg/day-750mg/day) (Peuskens 2004). The aim of the present study is to evaluate the efficacy and safety of quetiapine fumarate with daily dose 600-750mg/day in improving agitation and aggression for the treatment of Chinese acute schizophrenic patients hospitalised for acute phase over a treatment period of 2 weeks

Who is eligible to participate?

Inclusion Criteria: 1. Provision of written informed consent by both patient and legal representative 2. A diagnosis of schizophrenia by Chinese Classification and Diagnostic Criteria of Mental Disorder, 3rd version (CCMD-3) 3. Male or female, aged 18 to 65 years 4. MOAS total score ³ 10 at both screening and randomization 5. Female patients of childbearing potential must be using a reliable method of contraception and have a negative urine human chorionic gonadotropin (HCG) test at enrolment 6. Able to understand and comply with the requirements of the study Exclusion Criteria: 1. Pregnancy or lactation 2. Any CCMD-3 not defined in the inclusion criteria 3. Patients who, in the opinion of the investigator, pose an imminent risk of suicide or a danger to self or others 4. Known intolerance or lack of response to quetiapine fumarate or haloperidol, as judged by the investigator 5. Use of any of the following cytochrome P450 3A4 inhibitors in the 14 days preceding enrolment including but not limited to: ketoconazole, itraconazole, fluconazole, erythromycin, clarithromycin, troleandomycin, indinavir, nelfinavir, ritonavir, fluvoxamine and saquinavir 6. Use of any of the following cytochrome P450 inducers in the 14 days preceding enrolment including but not limited to: phenytoin, carbamazepine, barbiturates, rifampin, St. John's Wort, and glucocorticoids 7. Administration of a depot antipsychotic injection within one dosing interval (for the depot) before randomisation 8. Substance or alcohol dependence at enrolment (except dependence in full remission, and except for caffeine or nicotine dependence), as defined by CCMD-3 criteria 9. Opiates, amphetamine, barbiturate, cocaine, cannabis, or hallucinogen abuse by CCMD-3 criteria within 4 weeks prior to enrolment 10. Medical conditions that would affect absorption, distribution, metabolism, or excretion of study treatment 11. Unstable or inadequately treated medical illness (e.g. congestive heart failure, angina pectoris, hypertension) as judged by the investigator 12. Involvement in the planning and conduct of the study 13. Previous enrolment or randomisation of treatment in the present study. 14. Participation in another drug trial within 4 weeks prior enrolment into this study or longer in accordance with local requirements 15. A patient with Diabetes Mellitus (DM) 16. An absolute neutrophil count (ANC) of £ 1.5 x 109 per liter 17. 2 times higher than the normal upper limit of ALT or AST. 18. Use of clozapine within 28 days prior to randomisation

Which medical condition, disease, disorder, syndrome, illness, or injury is researched?

Acute Schizophrenia

Study Interventions

Interventions can include giving participants drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available or noninvasive approaches such as surveys, education, and interviews.

Drug:Quetiapine fumarateQuetiapine fumarate should be initiated on Day 1 and titrated to at least 600 mg/day before Day 7 according to clinical experience and prescribe information. After Day 7, the dose of quetiapine fumarate should be adjusted between 600 mg/day to 750 mg/day at the discretion of the investigator.

Drug:HaloperidolHaloperidol should be initiated with the dose range from 5 mg/day to 15 mg/day from Day 1 to Day 5 (using injection) according to the clinical experience and prescribe information. After Day 7, the dose of haloperidol should be adjusted between 8 mg/day to 20 mg/day (change from injection to oral formulation between Day 6 to Day 7) at the discretion of the investigator.

Study Arms

Research studies and clinical trials typically have two or more research arms. An arm is a group of people who receive the same treatment in the study.

Quetiapine fumarateQuetiapine fumarate should be initiated on Day 1 and titrated to at least 600 mg/day before Day 7 according to clinical experience and prescribe information. After Day 7, the dose of quetiapine fumarate should be adjusted between 600 mg/day to 750 mg/day at the discretion of the investigator.

HaloperidolHaloperidol should be initiated with the dose range from 5 mg/day to 15 mg/day from Day 1 to Day 5 (using injection) according to the clinical experience and prescribe information. After Day 7, the dose of haloperidol should be adjusted between 8 mg/day to 20 mg/day (change from injection to oral formulation between Day 6 to Day 7) at the discretion of the investigator.

Study Status

Unknown status

Start Date: August 2008

Completed Date: May 2010

Phase: Phase 4

Type: Interventional

Design:

Primary Outcome: The primary objective of this study is to evaluate the efficacy of quetiapine fumarate in improving agitation and aggression symptoms for the schizophrenic patients

Secondary Outcome: The response rate of quetiapine in improving agitation and aggression symptoms - the efficacy of quetiapine - the safety and tolerability of quetiapine - differences between quetiapine and haloperidol

Study sponsors, principal investigator, and references

Principal Investigator: Tao Chun Liu, Director

Lead Sponsor: Sichuan University

Collaborator:

More information:https://clinicaltrials.gov/show/NCT00838032

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