View clinical trials related to Psychotic Disorders.
Filter by:The aim of the present single-centered pre-post study is to assess the feasibility and to investigate the putative efficacy of an emotion-oriented group intervention for patients with psychosis. Patients with early psychosis in an inpatient unit receive a manualized group intervention focussing on emotional stability and emotion regulation (8 weekly sessions). Assessment will be performed at pre-therapy, post-therapy (after eight sessions and four weeks) and after a follow-up period of 12 weeks (8 weeks post therapy) and includes personal therapy goals and their realization, psychopathology, social functioning and emotion regulation skills as a putative mediator of change.
50 healthy volunteers (HV) will participate in 2 identical ketamine-induced pharmacoBOLD (phBOLD) sessions at least 7 days apart. On both days, clinical assessments will be performed following removal of the subject from the scanner. HV will be discharged home after clearance by the study physician. This study will assign ketamine doses in successive 10 subject cohorts. The ketamine dose for the 1st cohort will start at 0.08 mg/kg. For subsequent cohorts, the bolus will be successively reduced or increased by 0.02 mg/kg (n=10/dose) to determine the lowest dose of ketamine that still produces a robust phBOLD response. The study will be subject and rater blind, i.e. subjects and raters, will be blinded to the treatment (ketamine dose) group. The study physician will be aware of the ketamine dose, and ketamine dose will be the same for both sessions. Subjects will not be told what the exact ketamine dose they will receive, but it will be based on their weight and will be no higher than 0.08 mg/kg.
Psychotic disorders typically emerge during late adolescence or early adulthood. Patients, who are diagnosed with a psychotic disorder before turning 18 years, are defined as early onset psychosis patients (EOP). Relative to adult patients, these patients show a worse long-term prognoses. Social impairment present a major barrier towards recovery, and thus and important issue to address in treatment. Cognitive behavioral therapy (CBT) is the recommended psychological treatment for psychotic disorders. As part of the therapy, the patient does an exposure-based training in a social environment. This type of training has several limitations for patients with psychosis. The last decade there has been a growing interest in using virtual reality (VR) to understand and treat various psychological disorders. There is a lack of research on VR-interventions for EOP patients. This study will assess the acceptability, tolerability, feasibility and clinical efficacy of a novel VR-assisted CBT interventions for adolescents with psychosis.
The CLOZAPINE study is designed as a multisite study across 5 sites and is a clinical trial, involving human participants who are prospectively assigned to an intervention. The study will utilize a stringent randomized, double-blinded, parallel group clinical trial design. B2 group will serve as psychosis control with risperidone as medication control. The study is designed to evaluate effect of clozapine on the B1 participants, and the effect that will be evaluated is a biomedical outcome. The study sample will be comprised of individuals with psychosis, including 1) schizophrenia, 2) schizoaffective disorder and 3) psychotic bipolar I disorder. The investigators plan to initially screen and recruit n=524 (from both the existing B-SNIP library and newly-identified psychosis cases, ~50% each) in order to enroll n=320 (B1 and B2) into the RCT.
Investigation on how robotically mediated sensorimotor stimulation induces and triggers presence hallucinations in patients with Parkinson disease
Auditory hallucinations (AH) are associated with distress and reduced functioning. Psychological interventions show some promising effects on psychopathology but have been less successful in reducing AH related distress, which patients report to be a priority. Research suggests that distress is associated with the hearer relating to AH in a passive and subordinate manner. A novel approach thus teaches assertive responses to AH through the use of experiential role-plays. A single centre pilot study in the United Kingdom evidenced a large effect of this approach on AH distress but independent multicentre studies are required to ascertain effectiveness across different settings. The planned feasibility trial aims to estimate the expected effect for a subsequent fully powered prospective, randomized, controlled, parallel-group, two-armed, multicentre, open trial set up to demonstrate that adding a Relating Module (RM) to Treatment as Usual (TAU) is superior to TAU alone. Feasibility questions relate to patient recruitment, therapist training and therapy monitoring in different types of psychological and psychiatric outpatient facilities.
The purpose of this study is to test whether administration of levetiracetam (LEV), a commonly used anti-epileptic that alters neurotransmitter release, can reduce hippocampal hyperactivity in people with psychotic disorders. Specifically, the investigators will utilize two functional magnetic resonance imaging (MRI) techniques: 1) blood-oxygen-level-dependent (BOLD) contrast will assess activity with a visual scene processing task that engages the anterior hippocampus and 2) arterial spin labeling (ASL) will assess baseline activity. Previous studies in people with psychotic disorders have shown that the hippocampus is hyperactive and more activity correlates with worsening of clinical symptoms. Therefore, the aim of this study is to use an intervention to further understand the underlying mechanisms of the hippocampus in psychosis.
Psychotic spectrum disorders (PSD) are associated with poor social function. By doing this study, the investigators hope to learn which of two different types of 2-month long training courses is more effective in improving day-to-day interactions and quality of life.
The primary aim of this study is to provide confirmation that Cognitive Remediation (CR) for schizophrenia, when personalized based on pre-treatment assessment of early auditory processing ability, facilitates improved cognitive and functional outcomes. Additional aims of this study address the mechanisms of treatment effect. The study uses a repeated-measures randomized trial design. Enrollment will be by invitation, open to individuals receiving services at select community behavioral health facilities where CR is offered. Clients who are eligible for the service, who agree to participate in research and who meet inclusion/exclusion criteria will be assessed on outcome measures and categorized via performance on the Tone Matching (TM) test, as EAP impaired (EAP-) or EAP intact (EAP+). Subsequently, EAP- and EAP+ subgroups will be randomized to either (1) Brain Basics (BB; n = 100), an EAP-enhanced CR approach or (2) Brain Training (BT; n = 100), a routine CR approach. Participants will be invited to participate in a second pre-treatment assessment to measure electrophysiologic responses to auditory stimuli. All participants will be scheduled to repeat outcome measure assessments after treatment and after a follow-up period. The EAP- group receiving BB will be invited to repeat electrophysiological paradigms post-treatment to investigate mechanisms of change related to the CR intervention. Verbal learning will be the primary outcome with functional capacity the secondary outcome. EEG is exploratory and will examine neurophysiologic markers of need for and response to EAP training.
The aim of this study is to assess the efficacy of a short term compensatory cognitive group intervention - the Compensatory Cognitive Training (CCT) among people with severe mental illnesses, receiving ambulatory treatment