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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT01248195
Other study ID # KP7242114
Secondary ID 2010-020185-19
Status Completed
Phase Phase 4
First received
Last updated
Start date May 2011
Est. completion date April 2016

Study information

Verified date May 2018
Source UMC Utrecht
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The purpose of the study is optimising current treatments in schizophrenia and explore novel therapeutic options for schizophrenia. The study intends to both address basic, but so far unanswered, questions in the treatment of schizophrenia and develop new interventions. It is expected that the project will lead to evidence that is directly applicable to treatment guidelines, and will identify potential mechanisms for new drug development.


Description:

Despite nearly fifty years of pharmacological and psychosocial research, the overall prognosis of schizophrenia has improved only marginally. While the efficacy of most antipsychotic medication is generally uncontested, their overall functional impact has been modest. In order to improve this unsatisfactory result, this study aims to optimize current treatments in schizophrenia and explore novel therapeutic options for schizophrenia. The study comprises a medication intervention component, a psychosocial intervention component, a biological predictor component and an MRI component. MRI assessments are performed at baseline, and used to determine whether potential organic causes for psychotic symptoms are present, and to test prospective value of these assessments for subsequent treatment response. MRI assessments of healthy volunteers will be included to test for deviations in patients' assessments; these volunteers will not participate in any other protocol procedure. The medication intervention component comprises a first 4-week phase of amisulpride treatment. Non-responders will subsequently be randomised to a 6-week double blind phase on either amisulpride or olanzapine. Patients who classify as non-responders at the end of this phase, a 12-week open label treatment with clozapine is initiated. Patients who classify as a responder in phase I, II or III, are drop outs or who are non-responders at the end of phase III flow to the psychosocial intervention component of the study. During this part, several interventions are tested, aimed to increase treatment compliance and keep patients on the medication to which they've responded well. Through the biological predictor component, it is determined whether glutamatergic markers predict response to first and second line treatments, and if an empirical combination of pharmacogenetic, proteomics- and metabolomic markers can provide clinical valuable predictive value.


Recruitment information / eligibility

Status Completed
Enrollment 479
Est. completion date April 2016
Est. primary completion date April 2016
Accepts healthy volunteers No
Gender All
Age group 18 Years to 40 Years
Eligibility Inclusion Criteria:

1. Diagnosis of schizophrenia as defined by DSM-IV-R as determined by the M.I.N.I.plus

2. Age 18 or older.

3. The first psychosis occurred at least one year and no more than 7 years ago.*

4. If patients are using an antipsychotic drug, a medication switch is currently under consideration.

5. Capable of providing written informed consent.

Exclusion Criteria:

1. Intolerance / hypersensitivity to one of the drugs (including active substances, metabolites and excipients) in this study including oral risperidone, paliperidone and aripiprazole and/or hypersensitivity to risperidone.

2. Pregnancy or lactation.

3. Patients who are currently using clozapine.

4. Patients who do not fully comprehend the purpose or are not competent to make a rational decision whether or not to participate.

5. Patients with a documented history of non-response and/or intolerance to any of the study medications and/or a documented history of non-response to a treatment with one of the study drugs of at least 6 weeks within the registered dose range.

6. Forensic patients.

7. Patients who have been treated with an investigational drug within 30 days prior to screening.

8. Simultaneous participation in another intervention study (neither medication or psychosocial intervention).

Study Design


Intervention

Drug:
Amisulpride open label
4-week open label amisulpride treatment
6-week amisulpride double blind treatment
6-week amisulpride double blind treatment
6-week olanzapine double blind treatment
6-week olanzapine double blind treatment
12-week clozapine open-label treatment
12-week clozapine open-label treatment
Behavioral:
Psychosocial intervention
Psychosocial intervention

Locations

Country Name City State
Australia Melbourne Neuropsychiatry Centre Melbourne
Austria Department of Biological Psychiatry, Innsbruck University Clinics Innsbruck
Belgium Katholieke Universiteit Leuven (KU Leuven) Leuven
Bulgaria University Specialised Hospital for Active Treatment in Neurology and Psychiatry "St. Naum" Sofia
Czechia Psychiatrická klinika LF UK, Fakultní nemocnice Hradec Králové
Czechia Psychiatrické centrum Praha Prague Ustavni 91
Denmark Center for Neuropsychiatric Research Glostrup
France Institut National de la Santé et de la Reserche Médicale (INSERM) Créteil Cedex
Germany Martin-Luther-University (MLU) of Halle-Wittenberg Halle
Germany Deprtment of Psychiatry, University of Heidelberg Mannheim
Germany Ludwig-Maximilians University München München
Germany Technische Universität München (TUM) München
Israel Sheba Medical Centre Department of Psychiatry Tel Hashomer
Italy Department of Psychiatry University of Naples Naples
Netherlands University Medical Center Utrecht Utrecht
Poland Department of Adult Psychiatry, University of Medical Sciences Poznan
Romania Obregia Psychiatric Hospital Bucuresti
Spain Hospital Clinic i Provincial Barcelona
Spain Hospital Clínico San Carlos Madrid
Spain Instituto de Investigación Hospital 12 de Octubre Madrid
Spain Servicio Madrileño de Salud (SERMAS) Madrid
Spain Universidad de Oviedo Oviedo
Switzerland Clienia Schlössli AG, Privatklinik für Psychiatrie und Psychotherapie Oetwil am See
United Kingdom King's College London, Departments of Psychological Medicine, Psychiatry & Cognitive Neuroscience London
United Kingdom West London Mental Health Trust London
United Kingdom University of Manchester Manchester

Sponsors (5)

Lead Sponsor Collaborator
Rene Kahn King's College London, Ludwig-Maximilians - University of Munich, Technische Universität München, University of Manchester

Countries where clinical trial is conducted

Australia,  Austria,  Belgium,  Bulgaria,  Czechia,  Denmark,  France,  Germany,  Israel,  Italy,  Netherlands,  Poland,  Romania,  Spain,  Switzerland,  United Kingdom, 

Outcome

Type Measure Description Time frame Safety issue
Primary PANSS Study consists of multiple components, each with their own objectives. For this (medication) component: number of patients in remission, based on PANSS scores (criteria of Andreasen et al.; 2005) after 4 weeks open label amisulpride, after 6 weeks double blind amisulpride or olanzapine and after 12 weeks of open label clozapine. Jan 2016
Primary Sellwood rating scale Psychosocial intervention component, objective A: drug adherence rates as a function of (standardized self report and) Sellwood rating scales after 12 and 52 weeks. Jan 2016
Primary Biological profile Biological predictors component, objective A: drug response (remission vs non-remission) as a function of biological profile, after 4 weeks, 10 weeks and 22 weeks (after each medication phase). jan 2016
Primary MRS measures Biological predictors component, objective B: using MRS scans, differences between responders and non-responders in regional glutamate levels a) at baseline and b) between baseline and after one month of treatment with amisulpiride. jan 2016
Primary SOFAS global functioning Psychosocial intervention component, objective B: drug adherence rates as a function of standardized global functioning (SOFAS score after 1 year) following psychosocial intervention vs treatment as usual. jan 2016
Primary MRI assessments MRI component objective: the percentage of first episode patients that show radiological abnormalities suggestive of neurological disorders which may explain the occurrence of psychotic symptoms - measurement at baseline only. jan 2016
Secondary All cause treatment discontinuation The different components of the study have their own secondary objectives:
Medication component has multiple secondary objectives, most important one is all-cause treatment discontinuation after 4 weeks, 10 weeks and 22 weeks. Number and reason for premature discontinuations (treatment discontinuation) of the amisulpride and the olanzapine group will be compared (after 10 weeks).
jan 2016
Secondary All cause discontinuation Psychosocial intervention component has multiple secondary objectives, most important one is all-cause treatment discontinuation between treatment groups after 12 and 52 weeks. jan 2016
Secondary Biological markers Biological predictors component has multiple secondary objectives, most important one is the ability of biological markers to predict response to antipsychotic and treatment tolerability in schizophrenia, after 4, 10 and 22 weeks. jan 2016
Secondary MRI assessments The ability of MRI to predict response to antipsychotic treatment in schizophrenia, after 4, 10 and 22 weeks. jan 2016
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