Active clinical trials for "Psychotic Disorders"

The purpose of this project is to test the reliability of the FAST-O Rating Scale in patients at acute wards or psychiatric intensive care units.

Schizophrenia (Schizophrenia,Sc), biphasic affective disorder (Bipolar disorder,BPD), major depression (major depressive disorder,MDD), anxiety disorder (Anxiety disorder,An) and other mental disorders have obvious family aggregation, with heritability of 60 -90%. This kind of common mental illness seriously affects the psychosomatic health and quality of life of patients, and places a great mental and economic burden on the society and family. At present, the diagnosis of mental illness is mainly based on clinical symptoms. With the development of molecular biology, genomics has become a new way to study mental illness. MicroRNA (miRNA) is a class of eukaryotic endogenously non-coding single-stranded RNA, which can regulate gene expression by binding to specific mRNA or regulating the protein translation process of specific mRNA. MiRNA widely exists in plasma and serum, and the type and quantity of miRNA in plasma and serum change with different physiological and disease conditions. It is reported that the expression profile of miRNA in brain tissue of schizophrenia is significantly different from that of normal subjects. In addition, the study found that the specific miRNA detected in peripheral blood can directly reflect the condition of the disease, which may use miRNA in peripheral blood as a clinical biological marker. In order to detect the expression of various miRNA in plasma, high throughput miRNA chip detection has become the first choice for primary screening. In this study, the investigators intend to detect the difference of miRNA expression in peripheral blood of different types of schizophrenia by high throughput miRNA chip, and analyze the correlation between them. It is hoped to provide the basis for the diagnosis and occurrence and development of clinical psychotic patients.

Deficits or abnormalities in reward processing are present in a number of psychiatric disorders. The overarching objective of the study is to conduct initial validation work towards optimising three experimental tasks - which have previously been shown to be sensitive to reward processing deficits - for future use in clinical trials. This initial validation work has the primary objective to uncover group differences in task outcome measures between healthy control participants, participants with Major Depressive Disorder (MDD) and participants with schizophrenia (SZ) using statistical analyses. This may provide some indications for the use of these tasks as clinically-relevant biomarkers. Primary aims include: (i) comparing the investigator's endpoint means and distributions to those in previously published data; (ii) replication of previously-reported differences between MDD/SZ vs. healthy control participants, and, (iii) exploring the relationship between task endpoints and subjective participant- and clinician-rated report of reward-related constructs (e.g. anhedonia, negative symptoms).

The objective of this non-randomized, within-group comparison was to evaluate the addition of mindfulness as a new technique in an outpatient group therapy program for participants diagnosed with a psychotic spectrum disorder, alongside of cognitive behavioral therapy.

This study analyzes which variables enhance or hinder community integration among people with severe mental disorder. Participants will complete a questionnaire to test our hypotheses: Hypothesis 1: group identification predicts less self-dehumanization and self-stigma, and more empowerment, these in turn predict more community integration. Hypothesis 2: the relationship between group identification and self-dehumanization and self-stigma is moderated by group value. Hypothesis 3: when group identification is low, group identification predicts higher community integration, but this relationship is mediated by diagnosis concealment.

This is a single center study that uses both between-group comparisons and correlational analyses to establish biomarkers of dysmyelination and cognitive impairment in Psychotic Spectrum Disorders using imaging and neuropsychological assays.The study will provide non-invasive biomarkers of cognitive dysfunction in Psychotic Spectrum Disorder.

Introduction : World Health Organization (WHO) considers that the heterogeneity of concepts and definitions of migrants is an obstacle to obtaining evidence to inform public health policies. Thus, it recommends distinguishing refugees from asylum seekers. Asylum seekers are migrants who recently arrived in their host country and whose administrative situation is being examined. They do not have the same access to health care or the same rights as refugees. In France in 2021, 78,372 major people filled a first asylum application, a 26.4% increase compared to 2020 Regarding the mental health of exiles, a literature review informs us that 31.5% of them suffer from post-traumatic stress disorder (PTSD), 31.5% from depression and 11.1% from anxiety disorders. However, these data are taken from studies that do not make a distinction between refugees and asylum seekers These missing data are a hindrance to the development of efficient strategies for the management of these populations within the health systems of Western countries. The primary objective of this study was to describe the health status of asylum seekers who have recently arrived in their Western host country. The secondary objective was to investigate potential explanatory factors for the health status of asylum seekers. Method: Single-center, cross-sectional, observational epidemiological study. The Refugee health screener (RHS15) questionnaire and the Cumulative Illness Rating Scale (CIRS) will be administered by a trained interviewer to each patient included on the day of their inclusion, in the asylum seekers reception platform (PADA).Potential use of tobacco, existence of an adapted treatment in case of a detected pathology and certain socio-demographic data will also be collected. A telephone interpreting service will be used in the case of an allophone patient whose spoken language is not spoken by the interviewer. Each patient included will have an appointment to perform a standardised blood and urine sample. Benefits : PREMENTADA study will provide a better understanding of the health status of the population of asylum seekers in France. As the existence of data is a prerequisite for evidence-based medicine, we notice the lack of previous studies specifically addressing this population in France.

This research study will examine the relationship interconnecting medical body health, mental health, and microbes of the digestive tract in persons living with serious mental illnesses,as compared to persons without such disorders. Existing research suggests that interactions between digestive tract microbes and the body may influence brain function circuits, mood, anxiety state, cognition, behavior, and medical physiology.

The early stages of schizophrenia are associated with significant decreases in social and intellectual abilities, with more declines in chronic disease. Studies have identified relationships between duration of untreated psychosis (the duration between the onset of positive symptoms and treatment) and worse long term outcomes. However, the neurobiology of this phenomenon and its implications for response to antipsychotic medications remain poorly understood. Glutamatergic excess altering brain connectivity might provide an explanation for why those with longer duration of untreated psychosis have worse clinical outcomes. The investigators propose to use neuroimaging to study 67 first episode psychosis subjects before and after sixteen weeks of treatment with risperidone, a common antipsychotic. We will measure (1) glutamate and (2) structural and functional brain connectivity and test the hypotheses that glutamatergic abnormalities are present in first episode patients and that longer duration of untreated psychosis is associated with greater connectivity abnormalities that set the stage for poor response to treatment. 67 demographic-matched controls will also be recruited as a comparison group - healthy controls will not receive antipsychotic medication. The investigator's previous studies have made progress in the understanding of abnormalities in the glutamate system and brain connectivity in unmedicated patients with schizophrenia and modulation of these by antipsychotic medication. Two indices of glutamatergic dysfunction have been identified. While antipsychotic medications appear to modulate glutamate, the disturbance in the relationship between metabolites is not restored with treatment. In addition, the investigators found that both structural and functional connectivity abnormalities in unmedicated patients with schizophrenia predict patients' response to treatment. To the investigator's knowledge, no other group has performed a study that uses a combination of complementary neuroimaging techniques that will allow generating a broad characterization of glutamatergic function and brain connectivity in first episode psychosis and change with treatment. The results of the proposed studies could suggest a mechanism by which the duration of untreated psychosis is associated with poor treatment response which might lead to new interventions to target the illness.

The aim of this study is to develop a scale to measure the severity of depression with psychotic symptoms (psychotic depression). Furthermore, we hope to detect potential biomarkers (substances in the blood) which can aid in the detection of psychotic depression. Main hypothesis: A clinically valid rating scale measuring the severity of psychotic depression can be developed.