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Role of Anti-Inflammatory Agents in Patients With Schizophrenia

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赞助商
Pakistan Institute of Living and Learning
合作者
Karwan e Hayat
Dow University of Health Sciences

关键词

抽象

There is some evidence that anti-inflammatory treatment may have beneficial effects in schizophrenia and major depression. Cox-2 inhibitors have been tested in preliminary clinical trials for schizophrenia and depression, showing favourable effects compared to placebo (Muller and Schwarz et al 2009).
Statins were introduced as cholesterol-lowering agents but have found much wider usage. They are anti-inflammatory agents and thus similar to the Cox-2 inhibitors, which have shown some ability as adjuncts to improve the symptoms of schizophrenia in preliminary studies. The statins are also known to decrease C-reactive protein (CRP), which has been shown in an SMRI-funded study to be elevated in a study of individuals with schizophrenia. Fan et al (2007) demonstrated in a small study in patients with schizophrenia that higher than normal levels of CRP (>0.50 mg/dl) was associated with marked negative symptoms and higher total PANSS scores.
Ondansetron is a serotonin (5-HT3) receptor antagonist that is generic and widely used to prevent nausea and vomiting in patients receiving chemotherapy for cancer. GSK did a small study on it as an antipsychotic in the 1980s. Since then, several small studies have suggested that it is effective as an adjunct drug in improving the symptoms of schizophrenia.
Statins are widely used in schizophrenia sufferers, particularly those taking second generation antipsychotics, to treat hypercholesterolemia. Both drugs are well tolerated and their side effect profiles well understood.
We propose to conduct a feasibility study in patients with chronic schizophrenia to explore the adjunct use of simvastatin and ondansetron on positive, negative and general psychopathology in comparisons to treatment as usual (TAU) over a 12 week period.

日期

最后验证: 07/31/2019
首次提交: 06/27/2009
提交的预估入学人数: 06/28/2009
首次发布: 06/29/2009
上次提交的更新: 08/01/2019
最近更新发布: 08/04/2019
实际学习开始日期: 05/31/2009
预计主要完成日期: 08/31/2009
预计完成日期: 08/31/2010

状况或疾病

Schizophrenia
Schizoaffective Disorder
Psychosis Not Otherwise Specified
Schizophreniform Disorder

干预/治疗

Drug: Ondansetron

Drug: Simvastatin

Drug: Placebo

相 1

手臂组

干预/治疗
Active Comparator: Ondansetron
Drug: Ondansetron
ondansetron added to TAU Ondansetron will be administered in 8mg once daily dose
Active Comparator: Simvastatin
Drug: Simvastatin
Simvastatin added to TAU Simvastatin 20mg taken as once daily dose
Placebo Comparator: Placebo
Drug: Placebo
Placebo added to TAU

资格标准

有资格学习的年龄 18 Years 至 18 Years
有资格学习的性别All
接受健康志愿者
标准

Inclusion Criteria:

1. Diagnostic and Statistical Manual-IV (DSM-IV) diagnosis of schizophrenia, schizoaffective disorder, psychosis not otherwise specified or schizophreniform disorder

2. competent and willing to give informed consent

3. stable on medication 4 weeks prior to baseline

4. able to take oral medication and likely to complete the required evaluations

5. female participants of child bearing age must be willing to use adequate contraceptives for the duration of the study, and, willing to have a pregnancy test pre treatment and at ten weekly intervals while on study medication.

Exclusion Criteria:

1. Relevant medical illness [renal and hepatic] in the opinion of the investigators

2. history of high alcohol intake

3. any change of psychotropic medications within the previous six weeks

4. diagnosis of substance abuse (except nicotine or caffeine) or dependence within the last three months according to DSM-IV criteria

5. pregnant or breast-feeding.

结果

主要结果指标

1. acceptability and tolerability of simvastatin and ondansetron added to TAU [3 months]

次要成果指标

1. simvastatin and ondansetron added to TAU prevents the accumulation of negative symptoms in patients with schizophrenia [3 months]

2. simvastatin and ondansetron added to TAU prevents cognitive decline [3 months]

3. To compare the effect size [3 months]

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