Active clinical trials for "Psychotic Disorders"

Background: In parallel to the traditional symptomatology, deficits in cognition (memory, attention, reasoning, social functioning) contribute significantly to disability and suffering in individuals with schizophrenia. Cognitive deficits have been closely linked to alterations in early auditory processes (EAP) that occur in auditory cortical areas. Preliminary evidence indicates that cognitive deficits in schizophrenia can be improved with a reliable and safe non-invasive brain stimulation technique called tDCS (transcranial Direct Current Stimulation). However, a significant proportion of patients derive no cognitive benefits after tDCS treatment. Further, the neurobiological mechanisms of cognitive changes after tDCS have been poorly explored in trials and are thus still unclear. Method: The study is designed as a randomized, double-blind, 2-arm parallel-group, sham controlled, 4-centers trial. Sixty participants with recent-onset schizophrenia and cognitive impairment will be randomly allocated to receive either active (n=30) or sham (n=30) tDCS (20-min, 2-mA, 10 sessions during 5 consecutive weekdays). The anode will be placed over the left dorsolateral prefrontal cortex and the cathode over the left auditory cortex. Cognition, tolerance, symptoms, general outcome and EAP (measured with EEG and multimodal MRI) will be assessed prior to tDCS (baseline), after the 10 sessions, and at 1- and 3-month follow-up. The primary outcome will be the number of responders, defined as participants demonstrating a cognitive improvement ≥Z=0.5 from baseline on the MATRICS Consensus Cognitive Battery total score at 1-month follow-up. Additionally, we will measure how differences in EAP modulate individual cognitive benefits from active tDCS and whether there are changes in EAP measures in responders after active tDCS. Discussion: Besides proposing a new fronto-temporal tDCS protocol by targeting the auditory cortical areas, we aim to conduct an RCT with follow-up assessments up to 3-months and a large sample size. In addition, this study will allow identifying and assessing the value of a wide range of neurobiological EAP measures for predicting and explaining cognitive deficits improvement after tDCS. The results of this trial will constitute a step toward the use of tDCS as a therapeutic tool for the treatment of cognitive impairment in recent-onset schizophrenia.

This randomized controlled trial is to test the effectiveness of a peer-led self-management program (PLSMI) for people with recent-onset psychosis in the community over 18-month follow-up, compared with a conventional psychoeducation group and routine community mental healthcare.

The overarching goal of this study is to characterize the effects of cannabinoids on working and episodic memory.

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.

This trial aims to assess the added value of cognitive remediation therapy to supported education intervention in young adults with a psychotic disorder. The objectives of this study are threefold: The first objective is to evaluate the efficacy of supported education and cognitive remediation therapy for young adults with psychotic disorders in terms of academic outcome (primary outcome) and cognitive, neurobiological, and psychological outcomes (secondary outcomes). The second objective is to explore mechanisms of change in academic outcomes using a multidimensional approach (cognitive, psychological and biological characteristics) in youth with psychotic disorders. The third objective is to investigate the patients' perspectives regarding their appreciation of the supported education programs. Academic outcomes, cognitive performance as well as psychological and genetic variables will collected at baseline (T0). Participants will then be randomized either to the experimental condition (Cognitive remediation + Supported education + Treatment as usual) or the control condition (Supported education + Treatment as usual) for three months. Directly after the end of treatment (T1) and three months following the end of treatment (T2), the same measures as baseline will be repeated. One year post-treatment (T3), a last assessment will be conducted for academic outcomes.To assess qualitative experience of patients enrolled in supported education, a subsample of the randomized controlled trial will be recruited to participate in a photovoice activity.

The scientific literature has largely objectified language disorders in schizophrenia. And more precisely, the impairment of pragmatic and discursive language skills. Currently, there is no standardized language assessment tool specific to these patients. The aim of this study is to compare the effectiveness of a newly developed speech-language assessment tool for pragmatic and discourse skills for patients suffering from schizophrenia .

The Ohio State University Early Psychosis Intervention Center is implementing a specialized clinical program to serve individuals who meet clinical high risk criteria for a psychosis. The purpose of this study is to evaluate the long-term outcomes among individuals participating in this clinical service.

Subtle speech disorganization could be predictive of a transition to schizophrenia of ultra-high-risk patients. The aim of our longitudinal multicenter cohort study is to identify specific linguistic markers of the psychotic transition to validate a french predictive model of this transition using computerized speech analysis techniques

This application proposes OnTrackNY as a regional scientific hub for the Early Psychosis Intervention Network (EPINET) program as part of the National Institute of Mental Health (NIMH)'s creation of a national learning health care system (LHS) for early psychosis care. OnTrackNY has grown into a 22-site network, under the leadership of Lisa Dixon, MD, MPH. Created and supported by the New York State's Office of Mental Health (OMH), OnTrackNY is a nationally recognized model providing coordinated specialty care (CSC) for adolescents and young adults within two years of the onset of non-affective psychosis. OMH regulates and licenses all mental health programs in New York and is a direct-services provider via state-operated programs statewide. This makes OMH an ideal partner for establishing a statewide learning health care system for early psychosis care. Further, OnTrackNY's administration, OnTrackCentral, operates within the OMH-supported Center for Practice Innovations at Columbia Psychiatry. In this model, OnTrackCentral serves as the hub and the 22 OnTrackNY programs serve as the spokes. Since 2014, the still-growing OnTrackNY network has served over 1,600 individuals. From its inception, OnTrackNY has aimed to deliver high-quality, data-driven, accountable and culturally competent care consistent with an LHS. As a condition of funding, all OnTrackNY providers follow established protocols that require submission of patient- and site-level standard measures of early psychosis clinical features, services, and treatment outcomes. The proposed EPINET regional hub, the OnTrackNY LHS, will emphasize and enhance two critical foundational components - Aim 1: proactively engage stakeholders to optimize understanding of key problems and their solutions at every LHS phase; and Aim 2: develop data systems with enhanced standardized data collection, including post-discharge data and linkages to external data systems, and enhancing data analytics that will allow for client-level treatment planning and prospective analytics, delivering real time, dynamic and actionable information to stakeholders. These LHS components do not follow in a stepwise sequence but instead operate in parallel and interact to facilitate and enhance quality improvement processes. This backbone will support the development of practice-based research.

Patients with Psychotic disorders (Schizophrenia, Bipolar disorder and Schizoaffective disorder) often suffer from significant cognitive impairments, however how these develop and change over time before and after the first psychotic break is unclear. While there are data by several groups, showing that many future patients have significant cognitive impairments years before the onset of psychosis, many future patients seem to be doing well before the manifestation of psychosis, and decline steeply in functioning after their first psychotic episode. Hence the timing of the onset of cognitive impairment in patients with psychotic disorders requires further exploration. The current study will investigate the timing of cognitive impairment by using IQ tests before and after the first psychotic break