View clinical trials related to Psychotic Disorders.
Filter by:Purpose Psychotic disorders (including schizophrenia) are complex neurobehaviour disorders influenced by genetic, neurodevelopmental, neurochemical, as well as psychosocial factors. Despite significant progresses in pharmacotherapy, the disorder often results in long-term disability (ranked globally amongst the top ten leading causes of disability-adjusted life years, DALYS), often associated with extensive cost, burden, morbidity and mortality. Objective / hypothesis The study aims to (1) measure the prevalence of psychotic symptoms in the Hong Kong population; (2) explore associated risk and protective factors for the expression of psychotic symptoms; (3) characterize the functional disability in people with psychotic symptoms; and (4) study the determinant of clinical presentation or non-presentation in people with psychotic symptoms. Design, subjects and study instrument The survey will be conducted with a two-phase design. The first phase interviews will include approximately 5,000 subjects with structured assessments serving diagnostic criteria for CMD, screening instruments for psychotic disorder, substance misuse and suicidal behaviours, functioning, service use and demographics. The second phase comprises of clinician interviews for psychotic disorder and "at risk mental state" and other variables including neurocognitive, help seeking, stigma and well-being. Analysis Prevalence estimates will be weighted, expressed as rates and confidence intervals. Comorbidity will be estimated using Latent Class Analysis (LCA) Logistic regression will be used to identify significant factors associated with mental disorders.
We hypothesize that the use of a visual decision aid tool to educate patients regarding potential harm with respect to weight gain with olanzapine versus perphenazine can lead to better shared decision making by patients, increase rates of antipsychotic switches and promote weight loss in overweight patients with schizophrenia/schizoaffective disorder. Our specific aims are the following: 1. To investigate the effects of a visual decision aid, versus care as usual, on patients' perceived difficulties in medical decision making regarding switching antipsychotics in overweight veterans with schizophrenia or schizoaffective disorder. 2. To investigate the effects of a visual decision aid and a shared decision making model on rate of medication switches (from olanzapine to perphenazine) in overweight veterans with schizophrenia or schizoaffective disorder. 3. To investigate the effects of a visual decision making aid and shared decision making model on BMI in overweight veterans who switch from olanzapine to perphenazine therapy.
The purpose of this study is to evaluate an integrative therapeutic concept for schizophrenic patients with comorbid substance use disorder.
This project tests a model for improving illness self-management among persons who have both serious mental illness and diabetes and will be performed within a primary care setting at a safety net hospital system. The information gained from the randomized trial will be supplemented with reports from participants about their experiences of trying to improve illness self-management. Improvements in self-management should result in a reduction of psychiatric symptoms and improvements in functioning and physical health.
Several observations have been made with magnetic resonance imaging (MRI) that characterize brain connections and brain function in individuals with schizophrenia and other mental disorders. For example, research investigating schizophrenia focuses on the dysfunction of connections within and between the medial temporal lobe and the prefrontal cortex as well as other pertinent brain regions. This database registry will allow for the collection of clinical interview data, behavioral data, blood, magnetic resonance imaging (MRI) data, and functional magnetic resonance imaging (fMRI) data on individuals with and without mental disorders to better understand how connections in the brain and various brain regions function differently while volunteers perform various cognitive tasks. This is an observational study that is being conducted to collect data and place it in a registry for current and future investigational questions related to imaging in mental disorders.
The project is a 15-year follow-up of 240 young adults whose families participated in an experimental evaluation of the New Beginnings Program (NBP), a preventive intervention for divorced families. The NBP was provided in late childhood; the follow-up occurred in young adulthood. Families were randomly assigned to one of three conditions: mother program (MP), dual-component mother and child program (MPCP), or literature-control (LC) condition. Programs were designed to change several putative mediators of children's post-divorce mental health problems using empirically-supported change strategies. The investigators expected that the NBP would have either main or risk by program interactive effects on mental health and substance use problems and disorders, developmental tasks, parent-young adult relationships, physical health problems, and competencies, such that YAs who participated in NBP will have better functioning than YAs in the control condition. The investigators expected that the NBP will have either main or risk by program interactive effects on mothers' mental health; those in the NBP are expected to have fewer mental health problems than those in the control condition.
The investigators hypothesize that sustained-release DMXB-A-SR (3-2,4 dimethoxybenzylidene anabaseine sustained release) will provide clinical improvement in cognition in patients with schizophrenia who are smokers and who are non-smokers. The study drug may also maintain abstinence from cigarette smoking and improve other symptoms in patients with schizophrenia.
The investigators propose to recruit patients who have experienced a recent first episode of psychosis who have a chart diagnosis of Schizophrenia, Schizophrenifom, Schizoaffective Disorder, Psychosis NOS, or Bipolar I Disorder with psychotic features and self identify themselves as a current cigarette smoker. Aiding this population with smoking cessation is crucial as the majority of people with schizophrenia spectrum disorders (50-90%) smoke, which is leading to early mortality. While these individuals can benefit from standard evidence-based treatment, these treatments are underutilized. Web based programs, such as the EDSS and thetruth.com, can provide education and motivational tools to help people with a recent onset of psychosis use evidence-based smoking cessation treatments. This study aims to test these two web-based programs among young people with a recent episode of psychosis for usability and likeability and to explore whether use of these two programs will motivate users to seek smoking cessation treatment or to engage in other quitting behaviors in the month following use of the programs. Information gathered from this proposal will be used to help the researchers decide whether either of these two programs will be reasonable to include in a larger study of a comprehensive treatment for individuals with first episode psychosis.
To examine the feasibility of molecular imaging markers in clinical psychopharmacology
Purpose: Test whether intranasal administration of the neuropeptide, oxytocin, improves social cognition, psychotic symptoms and social functioning in schizophrenia. Participants: 80 adults with schizophrenia or schizoaffective disorder for at least one year. Procedures (methods): Oxytocin or placebo will be administered twice daily in an intranasal spray for 12 weeks. Before, during and at the end of the trial, each subject will undergo psychiatric symptom ratings and tests of mental abilities used in social functioning, cognition, and social competence.