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临床试验/NCT02685748
NCT02685748已完成2 期

Aspirin as Adjuvant Therapy in Young Psychotic Patients

Clinic for Psychiatric Disorders, Dr Laza Lazarevic1 个研究点 分布在 1 个国家目标入组 60 人开始时间: 2017年7月20日最近更新:
适应症
干预措施
相关药物

试验速览

阶段
2 期
状态
已完成
发起方
入组人数
60
试验地点
1
主要终点
Neurological Soft Signs

研究概览

简要总结

In this double blind randomized clinical trial the investigators are going to exam influence of adjuvant Aspirin therapy on soft neurological signs (Heidelberg scale), positive and negative symptoms (PANSS), cytokine profile and inflammatory factors, as well as on cognition (MoCA) in young psychotic patients.

详细描述

Schizophrenia as psychiatric paradigm is one of the most mysterious mental illness, for decades remains a challenge to many clinicians and researchers with its complex, fundamental mechanisms.

Soft neurological signs (SNS) are described as non-localized neurological abnormalities that cannot be associated with damage of a specific brain region. It is believed that they are not part of a well-defined neurological syndrome. They include neurological abnormalities with deficits in sensory integration, motor coordination and sequencing of complex motor acts. They have a higher prevalence in schizophrenic patients compared to healthy population. Moreover, SNS have been consistently demonstrated in neuroleptic naive patients in the first episode of illness. There is also an increased prevalence in non- schizophrenic relatives of patients with schizophrenia. It is considered that they are not potentiated by antipsychotics. For all these reasons it is believed that they are the inherent quality of schizophrenia - "trait" marker, or endophenotypes.

According to the so-called "Two hit" hypothesis in the development of schizophrenia, there are two periods of increased vulnerability. The first one is in a fetal age when it comes to the interaction of genetic and environmental factors such as infection and inflammatory processes who may also serve this function. The second period of vulnerability is a period of adolescence, or early adult age when the influence of environmental factors leads to clinical manifestations of the disease. It is thought that cytokines have key role in the first strike.

Cytokines are mediators of communication between the neural elements in all aspects of the development of the nervous system. Until now, numerous studies indicated modification of specific cytokines in psychotic disorders and their possible role in the proposed concept of "microglial hypothesis" of schizophrenia. Hypothesis of activation Th1 and Th2 immune response, with a predominance of Th2 immune response is proposed in schizophrenia. Type-17 cytokines are important in mediating tissue damage in autoimmune diseases. Regulatory cytokines suppress immune responses and maintain self-tolerance.

Consequently, the question is whether the combination of antipsychotic drugs with anti-inflammatory drugs is more useful than independent antipsychotic therapy? Laan and colleagues in 2010. carried out a randomized, double- blind, placebo - controlled study to determine if the adjuvant aspirin therapy could be useful for patients who are already taking antipsychotics. They concluded that the therapy antipsychotic + aspirin was significantly superior to placebo + antipsychotic therapy. PANSS score was significantly lower in the aspirin group.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Treatment
盲法
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)

入排标准

年龄范围
18 Years 至 28 Years(Adult)
性别
All
接受健康志愿者

入选标准

  • 18 to 28 years of life
  • diagnostic categories from F 20 to F 29, according to ICD 10 criteria
  • duration of illness ≤ 7 years

排除标准

  • Substance abuse
  • Primary cognitive impairment
  • Contraindications and special caution for acetylsalicylic acid and pantoprazole: hypersensitivity to aspirin and other NSAIDs or pantoprazole, ulcers, gastritis, pregnancy, haemophilia, bleeding disorders, gout, asthma, COPD, bronchospasm induced by NSAIDs, angioedema, urticaria, haemolytic anaemia, use of warfarin or methotrexate, diabetes, reduced function of liver and/or kidney, heart failure, surgical/dental intervention, interactions with certain psychotropic drugs

研究组 & 干预措施

Aspirin & pantoprazole

Experimental

Aspirin 1000 mg/pd per os in two doses

Pantoprazole 40 mg/pd per os in two doses for gastric protection

干预措施: Aspirin (Drug)

Aspirin & pantoprazole

Experimental

Aspirin 1000 mg/pd per os in two doses

Pantoprazole 40 mg/pd per os in two doses for gastric protection

干预措施: Pantoprazole (Drug)

Placebo

Placebo Comparator

Two pills in the morning and two in the evening

All pills (aspirin, pantoprazole an placebo) will be the same looking- in the same capsules.

干预措施: Placebo (Drug)

结局指标

主要结局

Neurological Soft Signs

时间窗: Comparison of total scores on Heidelberg scale between groups (aspirin and placebo group) after 6 weeks of treatment.

Neurological soft signs were assessed with the Heidelberg Scale which consists of five subscales (motor coordination, integrative functions, complex motor tasks, orientation, hard signs) comprising 16 items (gait, tandem walking, right/left orientation, arm holding test, finger to nose test, Ozeretzki's test, diadochokinesis, pronation-supination, finger to thumb opposition, mirror movements, two point discrimination, graphaesthesia, face- hand test, stereognosis, fist- edge- palm test, speech and articulation). Ratings are given on a 0-3 point scale (no/slight/moderate/marked abnormality, respectively) for all items except for tandem walking (0-1 point scale; 0: no/slight, 1: moderate/marked abnormality). Scale ranges: minimum- 0 (better outcome), maximum 46 points (worse outcome).

Psychopathology Symptoms Assessed by PANSS

时间窗: Comparison of total scores on PANSS (aspirin and placebo group) after 6 weeks of treatment.

The Positive and Negative Syndrome Scale (PANSS) is 30 item scale used to evaluate the presence, absence and severity of Positive, Negative and General Psychopathology symptoms of schizophrenia. Ratings are given on a 1-7 point scale (1- absent, 2- minimal, 3- mild, 4- moderate, 5- moderate severe, 6- severe, 7- extreme). Patient can not score lower than 30 for the total PANSS score. Maximum score is 210. Higher scores mean a worse outcome.

次要结局

  • Cognitive Assessment by MoCA Scale(Comparison of total scores on MoCA scale (aspirin and placebo group) after 6 weeks of treatment.)
  • Marker of Inflammation: C-reactive Protein (CRP)(Comparison of CRP levels between groups (aspirin and placebo group) after six weeks of treatment.)
  • Marker of Inflammation- White Blood Cells (WBC)(Comparison of WBC levels (aspirin and placebo group) after 6 weeks of treatment.)
  • Cytokine Profile- Th1- Interferon Gamma (IFN-γ)(Comparison of IFN Gamma levels (aspirin and placebo group) after 6 weeks of treatment)
  • Cytokine Profile- Th2-Interleukin 4 (IL4)(Comparison of IL 4 levels (aspirin and placebo group) after 6 weeks of treatment)
  • Cytokine Profile- Type 17- Interleukin 17 (IL17)(Comparison of IL 17 levels (aspirin and placebo group) after 6 weeks of treatment)

研究者

发起方
Clinic for Psychiatric Disorders, Dr Laza Lazarevic
申办方类型
Other
责任方
Principal Investigator
主要研究者

Dragana Pavićević

Dr Dragana Pavicevic

Clinic for Psychiatric Disorders, Dr Laza Lazarevic

研究点 (1)

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