View clinical trials related to Schizophrenia.
Filter by:Primary objective: to examine the efficacy and safety of high frequency repetitive transcranial magnetic stimulation (HF rTMS) with H7-coil applied once daily during the twenty days, augmentative to the standard antipsychotic pharmacotherapy and other treatment of negative symptoms in schizophrenia. Targeted population: patients diagnosed with schizophrenia, 18-55 years old with predominant negative symptoms, stable condition for >3 months and unchanged antipsychotic therapy for >1 months and no treatment with antidepressants. Study design: industry independent, multicenter, prospective randomized sham-controlled, two-arms, triple-blind superiority clinical trial with concealed allocation and masked independent outcome assessment. Primary outcome: adjusted median of differences in total SANS score. Adjustment for age, gender, baseline total SANS score, duration of the disorder, and antipsychotic therapy.
This is a definitive study to support the safety and efficacy evaluation of BXCL501 for the acute treatment of agitation in schizophrenia. The BXCL501-301 study is designed to characterize the efficacy, safety and tolerability of BXCL501 (sublingual film formulation of DEX, HCl) in agitation associated with schizophrenia, schizoaffective disorder or schizophreniform disorder.
People with schizophrenia often have problems with attention, learning and memory and other cognitive abilities that interfere with their work and school performance. Unfortunately, even our best treatments often do not significantly reduce these cognitive problems. The current study investigates whether or not delivering a very small electrical current to people's foreheads (called, transcranial direct current stimulation; (tDCS)) might improve functioning in the front part of the brain and reduce these cognitive problems in people with schizophrenia. tDCS is non-invasive and has been shown to improve cognitive functioning in some preliminary studies. The current study will investigate whether giving tDCS during a task is more effective than giving it during rest (Aim 1), whether delivery of tDCS to the front of the head is more effective than delivery to the back of the head (Aim 2), and whether tDCS delivery will alter levels of a major inhibitory neurotransmitter in the brain (GABA; Aim 3) that is important to cognitive functioning and may be disrupted in people with schizophrenia. Although this study is not intended to diagnose, cure or treat schizophrenia or any other disease, if results are positive it will encourage future large-scale studies to determine if tDCS can become an effective treatment for cognitive problems in people with schizophrenia.
To develop, and then evaluate a mobile phone app to deliver therapy homework activities between group sessions (social cognition intervention) in individuals with psychosis. The investigators are interested in whether offering homework via an app is a) feasible, and b) acceptable. The investigators will also assess whether there is an initial indication that offering homework via the app improves outcomes following the group therapy.
Schizophrenia patients with anti-psychotics have decreased psychiatric symptoms, but have increased the generation of overweight or obesity. There is correlation between obesity, diabetes mellitus, metabolic syndrome, hypertension, hyperlipidemia and cardiovascular disorders. Cassia seed is one of traditional Chinese herbs, that can decline blood lipedema effect. Therefore, the purpose of the present study was to design a randomized, double blind, control group study to assess the therapeutic effect of Cassia seed in schizophrenia patients with obesity.
Verbal episodic memory is an independent declarative memory system associated with language and is responsible for storage and conscious recall of previous personal experiences. Verbal episodic memory is impaired in schizophrenia and is related to patients' functional outcomes. Because no medication has shown clear positive effects on verbal memory impairment in schizophrenia, there is a great need to find effective cognitive remediation treatments (CRT) that could improve this domain in this psychiatric population. Although CRT programs have shown small to moderate positive effects on verbal memory in individuals with schizophrenia, traditional lab-based computerised cognitive interventions have notable attrition rates. In recent years, along with the advancement of technology, the development of Virtual Reality (VR) has allowed the possibility for new training techniques. Previous studies have established the initial feasibility and safety of using VR in schizophrenia population. However, no studies have examined the feasibility, safety and efficacy of combining VR technology with verbal memory training among individuals with schizophrenia. Thus, in this study, we will adapt an exercise from the Strategy for Semantic Association Memory (SESAME; (Guimond et al., 2018; Guimond & Lepage, 2016) training to a VR environment. We aim to determine the feasibility of using virtual reality in the context of a cognitive remediation intervention and to assess the initial efficacy of our verbal memory training on the use of semantic encoding strategies in people with schizophrenia. We also aim to assess participants' experience and tolerability of the VR training.
This project will use a smartphone technology to improve medication prescribing for individuals with FEP. We will collect real-time symptom and functioning data via smartphones to provide prescribers and other clinical team members with clinically relevant and time-sensitive information that will inform and promote shared decision making (SDM) and personalized interventions. The result will be a time-sensitive, data-driven, collaborative process to optimize medication regimens in order to maximize benefits, minimize harms, and promote adherence.
This project compares standard tDCS to individualized high-definition tDCS (HD-tDCS) for treatment of auditory verbal hallucinations in schizophrenia.
Clozapine (Clz), an atypical antipsychotic, is the reference medication for patients with treatment-resistant schizophrenia. Due to the high inter-individual variability of its pharmacokinetics and its narrow therapeutic index, a close therapeutic drug monitoring (TDM) of Clz is highly recommended. Several factors can cause a variation in the pharmacokinetics as age, smoking habits, coffee consumption and drug interaction. Genetic factors related to hepatic expression levels of the cytochrome P450 (CYP), regulate the hepatic clearance of Clz, thereby determine its bioavailability. The CYP1A2 and CYP2C19 isoenzymes are mainly responsible for the metabolism of several drugs including Clz. It has been demonstrated that there is an interethnic variation in the expression and function of these two isoenzymes. This variation is caused by single nucleotide polymorphisms (SNPs) of genes encoding these proteins. While the Influence of the different polymorphisms related to CYP1A2 and CYP2C19 have been established especially in Asian and Caucasian populations, no study has examined the impact of these SNPs in the southern Mediterranean populations. Moreover, the impact of these SNPs is very controversial. The present study aims to investigate in Tunisian schizophrenic patients, the influence of genetic (CYP1A2 and CYP2C19 polymorphisms) and non-genetic factors on Clz pharmacokinetics.
Source-monitoring is a cognitive process that refers to the ability to remember the source of an information. Source-monitoring processes are usually studied using experimental behavioral tasks. These tasks, which are very heterogeneous, are not all available in French and, for the most part, cannot be used in neuroimaging protocols. The aim of this project is to develop an experimental task which allows the measurement of source-monitoring performances, and which is adapted to neuroimaging protocols in a French-speaking population.