Active clinical trials for "Psychotic Disorders"

The purpose of this study is to understand the relationship between psychotic symptoms and social functioning in individuals with schizophrenia spectrum disorders. Our goal is to determine whether stimulating the brain using transcranial Direct Current Stimulation (tDCS) can improve symptoms and daily functioning.

The goal of this project is to investigate whether a systematic screening approach enhanced by an innovative model of communicating information about psychosis and treatment options to patients and families (ComPsych) can reduce Duration of Untreated Psychosis (DUP) by facilitating early identification of first episode psychosis (FEP) cases, rapid referral to specialty care and engagement in treatment. The study team will use a stepped-wedge cluster randomized controlled trial design to compare a systematic screening and communication method (SCM) to systematic screening method (SM) to evaluate whether SCM substantially reduces DUP. The study team hypothesize that: (1) SCM will result in a higher number of individuals initiating specialty services compared to SM; (2) The mean DUP of FEP individuals in SCM condition will be lower than the mean DUP of FEP individuals in SM condition, due to the reduced time to initiate FEP services. We will also conduct a qualitative study to examine implementation barriers and facilitators of SCM.

The proposed project is based on the observation that schizophrenia is characterized by a chronic pro-inflammatory state, which contributes to the severity of a number of the clinical manifestations of the illness, including cognitive impairments, the treatment of which represents a critically important unmet therapeutic need.

Non-invasive neuromodulation, such as transcranial direct current stimulation ( tDCS) , is emerging as an important therapeutic tool with documented effects on brain circuitry, yet little is understood about h ow it changes cognition. In particular, tDCS may have a critical role to play in generalization, that is how training in one domain generalizes to unlearned or unpracticed domains. This problem has resonance for disorders with cognitive deficits, such as schizophrenia. Understanding how tDCS affects brain circuity is critical to the design and application of effective interventions, especially if the effects are different for healthy vs. psychiatric populations. In previous research, one clue to the mechanism underlying increased learning and generalization with tDCS was provided by neuroimaging data from subjects with schizophrenia undergoing cognitive training where increases in thalamocortical (prefrontal) functional connectivity (FC) predicted greater generalization. The premise of this proposal is that increases in thalamocortical FC are associated with the generalization of cognitive training, and tDCS facilitates these increases. The overarching goals of this proposal are to deploy neuroimaging and cognitive testing to understand how tDCS with cognitive training affect thalamocortical circuitry in individuals with and without psychosis and to examine variability in response within both groups. Study 1 will compare right prefrontal, left prefrontal and sham tDCS during concurrent cognitive training over 12 weeks in 90 healthy controls. Study 2 will be similar in all aspects but will examine 90 patients with schizophrenia or schizoaffective disorder and include clinical assessments. Results of the study will provide crucial information about location of stimulation, length of treatment, modeled dosage, trajectory and durability needed to guide future research and interventions for cognitive impairments.

In West Africa, most people with serious mental illness receive care from traditional or faith healers at prayer camps. The stepped-wedge cluster randomized trial aims to evaluate the effectiveness of a dual-pronged intervention package comprised of a mobile health program designed to train healers to deliver evidence-based psychosocial interventions combined with pharmacotherapy delivered directly to the patients at their prayer camps via a visiting nurse in Ghana.

This is a proof-of-concept of a new Virtual Reality (VR) Avatar Intervention for Cannabis Use Disorders (CUD) in patients with psychotic disorders and/or mood disorders. The primary outcomes are reductions in cannabis use, cannabis use disorder severity, and increased quality of life.

Since 1990s, stimulation of prefrontal cortex (PFC) has shown therapeutic effects on auditory hallucinations as well as negative symptoms of schizophrenia. However, previous studies have reported mixed or negative results. Majority of the repetitive transcranial magnetic stimulation (rTMS) studies to date has set the target of cortical stimulation based on scalp site. Recently introduced method, navigated transcranial magnetic stimulation (nTMS) integrates the individual MRI data, and thus allows more precise targeting on brain cortical regions enhancing the efficacy of rTMS. Previous EEG studies have suggested reduced alpha band activity in patients with schizophrenia. Some recent studies using alpha (α) EEG guided TMS for treating positive and negative symptoms of schizophrenia have demonstrated promising results. The aim of the study is to investigate the efficacy of navigated individualized αTMS in treatment-resistant patients with schizophrenia. Approximately fifty patients with DSM-IV schizophrenia will be enrolled in this randomized, double-blind, sham-controlled study. The patients will receive 13 - 15 session of αTMS to the left dorsolateral prefrontal cortex (DLPFC), as adjunctive therapy, for 3 weeks. We assess patients via the Positive and Negative Syndrome Scale (PANSS), Clinical Global Impression (CGI) and neurocognitive test battery at baseline, 5 days after and 3 months after treatment. Serum and plasma levels of brain derived neurotrophic factor (BDNF) are assayed at pre and post treatment weeks.

This is a confirmatory randomized controlled trial of the efficacy of a novel intervention combining neuroplasticity-based cognitive training with aerobic exercise, compared to the same systematic cognitive training alone. Treatment occurs for 6 months after randomization, with a followup assessment at 12 months. The investigators hypothesize that combining neuroplasticity-based computerized cognitive training and neurotrophin-enhancing physical exercise will produce neurotrophin increases and cognitive and functional improvements, even relative to cognitive training alone. The investigators target the period shortly after a first episode of schizophrenia to maximize the generalization of cognitive improvement to functional outcome, before chronic disability is established.

This study will take place at one outpatient clinic serving adults with serious mental illness and will recruit ten individuals (N=10) with a DSM-5 diagnosis of schizophrenia or schizoaffective disorder to participate in an Open Trial of Motivation Skills Training (MST). MST is a weekly group-based skills training intervention that aims to improve knowledge about one's level and sources of motivation, the ability to monitor and regulate (understand and manage) motivation, so that one can better initiate and sustain goal-directed behavior. Participants who consent for research will complete assessments of motivation, goal attainment, quality of life, executive functioning, community functioning, and psychiatric symptoms severity. The intervention phase will be approximately 12 weeks in duration and will entail weekly MST group sessions. At treatment endpoint, participants will be asked to repeat the assessment battery from baseline as well as a satisfaction survey. Change in motivation, goal attainment and quality of life will indicate whether MST is engaging the hypothesized target (motivation) and whether there is impact on functioning.

The present study will assess the feasibility and social validity of an adjunctive health promotion group for youth and clinical high risk for psychosis (CHR-P). Youth participating in treatment at the Center for the Assessment and Prevention of Prodromal Sates (CAPPS) will be invited to participate in a weekly, adjunctive, closed psychoeducation group focused on sharing health promotion strategies and increasing health behaviors (e.g. improved sleep habits, increased participation in physical activity). The aim of the group will be to provide psychoeducation on lifestyle risk and protective factors for youth at risk for psychosis (i.e. experiencing subthreshold psychosis symptoms). Topics covered will include psychoeducation, goal setting, stress management, sleep, physical activity, substance use, and nutrition. Evidence-based strategies to decrease risk factors and promote protective lifestyle factors for mental illness will be reviewed. Group leaders will utilize a motivational interviewing approach to facilitate the group. The group will complete nine weekly group sessions. The goal of our research is to 1) determine the feasibility of a novel group-based health promotion intervention, 2) assess the social validity of the group, 3) measure the effects of the intervention on stress, sleep, physical activity, substance use, and nutrition, and 4) measure preliminary effects on symptoms and functioning.