View clinical trials related to Psychosis.
Filter by:This clinical trial is a single center, single dose study of the acute effects of intranasal insulin on energy metabolism and cognitive function in patients with schizophrenia, schizoaffective and bipolar disorders, compared and healthy controls.
Standard psychological therapy for psychosis (Cognitive Behavioural Therapy) is made up of different 'ingredients', also called treatment components. In therapy, different treatment components can be included or excluded depending on the needs of the individual. In this study, the investigators want to find out if standard psychological therapy for psychosis can be improved by including new treatment components. Therefore, participants in this study will be offered psychological therapy for psychosis with new treatment components included or standard psychological therapy for psychosis without new treatment components included. Which of these two options participants are offered will be decided by chance, and during the study neither the study participants nor the researcher will know which of these two variations of psychological therapy are given. Researchers call this a randomized double-blind study. The investigators are aiming to use the results from this study to guide the improvement of psychological therapies for psychosis.
Implementation of 'NAVIGATE' in Ontario aims to help youth and emerging adults suffering from a first episode of psychosis. Although Ontario already has early psychosis intervention programs, the team's recent work has identified major challenges of delivering coordinated care, particularly those elements of care that enhance recovery. These challenges also exist nationally and internationally. By building on the already existing early psychosis intervention community of practice through the Early Psychosis Intervention Ontario Network, the investigators will implement NAVIGATE with the help of CAMH's Provincial System Support Program facilitators. The use of tele-videoconferencing through ECHO Mental Health Ontario and ECHO processes and protocols provide us with an opportunity to ensure sustainability. Using health administrative data held at the Institute for Clinical Evaluative Sciences (ICES), the investigators can examine system-level outcomes, including hospitalizations, emergency department visits, and outpatient physician visits of youth and emerging adults suffering from a first episode psychosis who are treated with NAVIGATE compared with those treated in early psychosis intervention programs without NAVIGATE and those who are not treated in early psychosis intervention programs. In addition, the investigators can also evaluate health care costs. Prior to initiating this project, the investigators obtained the input of youth and emerging adults with a first episode psychosis and family members. The investigators will also continue to measure engagement across the study. Hypotheses: 1. Following the implementation of NAVIGATE, program fidelity (i.e. adaptability) to the Ontario early psychosis intervention standard will improve. 2. Compared to patients not receiving NAVIGATE, those who receive NAVIGATE through this implementation study will have fewer days in hospital, fewer emergency department visits, fewer suicide attempts, lower mortality, and lower healthcare costs. 3. Improvements in functioning and symptoms will be comparable to the RAISE study (an earlier study assessing NAVIGATE); improvement may be influenced by demographic, socio-economic, geographic, and clinical factors. 4. The project's engagement approach will demonstrate that the investigators used the full range of patient engagement based on objectively assessed engagement metrics.
Cognitive enhancement is a primary goal in treating individuals with schizophrenia. Cognitive deficits are already present at the first break of the illness, seem to remain stable during early phases and noticeably influence daily functioning. Differences among antipsychotics in terms of cognitive effectiveness have turned out to be a topic of increasing research interest. The initially postulated superior neurocognitive effectiveness of second-generation antipsychotics (SGAs) compared to first-generation antipsychotics (FGAs) is currently under debate. Long-term studies would be of great value to evaluate the differential benefits exerted by antipsychotic drugs on cognitive performance. The aim of this study is to investigate the cognitive effects of aripiprazole and risperidone in first-episode psychosis at 3 years.
Disturbances in glucose metabolism and glutamate neurotransmission feature in the pathophysiology of psychotic disorders. Ketogenic diet (KD) is a high-fat, low-carbohydrate diet that restricts glucose and forces metabolism of ketones, which serve as alternative energy substrates for the brain. KD is an established treatment for intractable epilepsy. However, we lack the randomized controlled trials (RCT) evidence regarding potential effects of KD on psychotic symptoms in humans. This randomised, controlled pilot study aims to investigate: 1. feasibility of a Modified Ketogenic Diet (MKD) intervention protocol in psychotic inpatients, 2. potential impact of MKD intervention on psychotic symptoms, depressive and anxiety symptoms, and functioning in patients with psychotic symptoms / psychotic disorder. A 6-week randomised KD pilot study will be carried out in psychotic inpatients (aimed n=40) at Niuvanniemi Hospital and Kuopio University Hospital, Finland. In the KD group, carbohydrate consumption is limited to 15-20 g/day to activate ketosis. The control group will have their ordinary hospital meals. A number of different assessment will be carried out at time points 0, 1 week, 3 weeks and 6 weeks.
The purpose of this trial is to determine if patients with comorbid psychotic disorder and substance use disorder will continue in treatment longer if treated with clozapine than with olanzapine, and will have greater reductions in psychosis and in substance use if treated with clozapine than treated with olanzapine. The specific aims and hypotheses of this trial are: 1. To compare the enduring effectiveness and tolerability of clozapine and olanzapine, as measured by time to all-cause treatment discontinuation, over 12 weeks of follow-up; The investigators hypothesize that patients assigned to clozapine treatment will have significantly longer times to all cause treatment discontinuation, 2. To compare the total psychosis items scores between patients treated with clozapine and patients treated with olanzapine over 12 weeks of follow-up; The investigators hypothesize that patients treated with clozapine will have significantly lower total psychosis items scores than patients treated with olanzapine, and 3. To compare the frequencies of positive urine drug screens and blood alcohol levels (obtained weekly throughout 12 weeks of follow-up) between patients treated with clozapine and patients treated with olanzapine; The investigators hypothesize that patients treated with clozapine will have significantly fewer positive urine drug screens and blood alcohol levels than patients treated with olanzapine.
Randomized control trial assessing supplemental melatonin for youth with at-risk or psychotic symptoms.
This study will investigate dentate gyrus (DG) and hippocampal CA3 sub field function, using the pattern separation paradigm, as reflected by the difference in brain activation in response to same-as-previously- seen (OLD) vs. similar-to-previously-seen (SIM) objects in first episode psychosis (FEP) subjects before and after anti psychotic treatment and in matched healthy controls (HC). The current study uses three novel high-resolution task-based and post-encoding resting fMRI measures to probe hippocampal circuitry in delusions. It will also study CA1 function, using a sequential associative mismatch paradigm, as reflected by activation of CA1 in response to mismatching information compared to memory of that stimulus in FEP subjects before and after antipsychotic treatment and in matched HC. Finally, this study will evaluate plasticity of hippocampal intrinsic functional connectivity (IFC) in response to memory consolidation, using an encoding-plasticity paradigm, in FEP subjects before and after anti psychotic treatment and in matched HC. For each of the three imaging projects, a total of 50 FEP subjects and 50 matched healthy controls (HC) will be studied; hence, 300 subjects will be studied over 5 years. Within each paradigm, medication-naive FEP subjects will be studied at baseline and 8 weeks after starting anti psychotic medication. HC participants will be studied at baseline and 8 weeks later but will not receive any treatment.
Cognitive impairments are a core and enduring feature of first-episode psychosis and schizophrenia, and are associated with significant functional impairment. Cognitive remediation (CR) is a behavioural intervention that has been found to have a small to moderate effect on cognition in individuals with schizophrenia, and recent studies suggests that it leads to improved cognition in persons with first-episode psychosis. Results from a CR feasibility project that was conducted through the Winnipeg Regional Health Authority's Early Psychosis Prevention and Intervention Service (EPPIS) showed promising findings. Specifically, large effect sizes were found in the areas of verbal learning and self-esteem. Moreover, the intervention was found to be acceptable to the participants. However, the findings are limited by the sample size and lack of control group. In this proposed study, the investigators seek to expand the scientific support for treating neurocognitive impairments in order to increase functional productivity associated with first-episode psychosis. A novel group CR program, action-based cognitive remediation (ABCR), has been developed by Dr. C. Bowie (co-investigator) to promote the generalization of cognitive skills to real-world activities. ABCR has been found to improve both cognition and functional competence in persons with schizophrenia. The primary outcome measure will examine whether ABCR results in improved executive functioning in persons with first-episode psychosis compared to psychiatric rehabilitation alone. Secondary outcome measures (e.g., memory, processing speed, self-esteem, emotional functioning, adaptive functioning) will also be analyzed.
ReMindCare is an app designed by the Unit of Psychiatry at the Clinical Hospital of Valencia in liaison with the Polytechnic University of Valencia. This e-Health app gathers information about the clinical health status of patients with Psychotic Disorder Diagnose through daily and weekly brief assessments. This information is displayed in a restricted access website, where clinicians can visualize data from patients as well as download pdf reports of main data collected by the app. These reports can be attached to the electronic clinical report of the patient at the hospital database, being accessible for consultation for every clinician involved in treatment of the patient. Furthermore, ReMindCare produces different alarms which notify clinicians about variations into patients health status or the cessation of using the app. Moreover, patients can also deliberately generate an urgent consultation alarm. The introduction of ReMindCare app into clinical practice will follow a clinical trial structure in which treatment as usual (TAU) of patients from a First Episode of Psychosis Unit will be compared to ReMindCare app intervention program. After participants eligible for inclusion complete baseline assessments they will be randomly allocated to one of the two groups (Intervention or TAU) by a basic single blind randomization in which an independent researcher will perform the allocation using a computerized random number generator. Information collected through the app and variations into clinical data will be analyzed among time. First assessment of these data will be conducted after 6 months of patient´s enrollment into the study. Subsequent analysis will be conducted yearly.