Active clinical trials for "Schizophrenia"

Numerous studies reported on comorbidity of fibromyalgia and psychiatric disorders. Approximately 30% of patients with fibromyalgia have major depression at the time of diagnosis; the lifetime prevalence of depression is 74% and that of an anxiety disorder is 60%. In some fibromyalgia patients, mood and cognitive problems are much more prominent than tenderness. From the psychiatric point of view, 49% of PTSD patients and 5% of major depression patients fulfill criteria for diagnosing fibromyalgia. The association between schizophrenia and fibromyalgia is still unknown. Study hypothesis Schizophrenia patients, who have an aberrant sensation of pain, have lower prevalence of FM compared to the general population. Primary objectives Demonstrate that schizophrenia patients have lower prevalence of FM, compared to the general population. To compare the self-reported extent and intensity of pain with selected tender points examination.

Several authors suggest that the specific experience felt in clinical encounter, called Praecox Feeling, is directly linked to the psychopathology of Schizophrenia. However, determining factors of this phenomena, whether cognitive or subjective, remains poorly studied. Furthermore, Self-Disorders are alterations of the first-person experience regarded as specific of the disease. The investigators plan to study in an exploratory way the phenomenological and subjective links between Praecox Feeling and Self Disorders determinants, while hypothesizing that the clinician's Praecox Feeling can be positively correlated to SDs, as our main objective.

Veterans with mental illness face challenges with community reintegration, including achieving vocational success, attaining their educational goals and going back to school, and maintaining a high quality of life. VA Mental Health Residential Rehabilitation Treatment Programs, Psychosocial Rehabilitation and Recovery Centers and other mental health treatment programs are designed to help Veterans overcome these barriers, but cognitive impairment often seen in Veterans with mental illness limits gains from these settings. Cognitive remediation interventions can be helpful, but they are either "one-size fits all," and thus may not be useful for all Veterans with mental illness, or are too narrow in scope, focusing on specific mental illnesses, limiting generalizability. This project will test whether an objective neurophysiological biomarker, mismatch negativity (MMN), can better match the "right" Veteran to the "right" cognitive remediation treatment regardless of their specific mental health diagnosis.

The aim of this study is to evaluate a new SV2A tracer, [11C]APP311, in healthy aging and neuropsychiatric disorders including psychotic disorders and cannabis use disorders.

Schizophrenia is a psychiatric disorder, affecting 600,000 patients in France. Patients with schizophrenia have life expectancy decrease from 10 to 20 years because of cardiovascular death. Cardiovascular risk factors are numerous: inadequate diet, smoking, alcohol consumption, diabetes, obesity. Primary prevention of cardiovascular risk in patients suffering from schizophrenia is difficult because of understaff in general practitioners and psychiatrists.

The investigators are seeking healthy volunteers and people with schizophrenia or schizoaffective disorder for a clinical study of the immune system in psychotic disorders. This is an observational study, to understand the ways in which the immune system may be contributing to the disease process.

This is an in vivo positron emission tomography (PET) study of regional cerebral dopamine and blood flow in normal volunteers, persons with Parkinson s disease (both familial and sporadic), and those with schizophrenia spectrum disorders. The latter also sign consent for NIH approved protocol 89-M-0160, "Inpatient Evaluation of Neuropsychiatric Patients," PI: Daniel Eisenberg, M.D. Using PET with 6-[F-18] Fluoro-L-dopa (FDOPA) and (15)0-H2O in a single scan session, both presynaptic dopaminergic function and regional cerebral blood flow (rCBF) are assessed. The kinetic rate constant (Ki) for presynaptic dopaminergic uptake in striatum and other regions is calculated. We compare Ki across subject groups and relate the findings to rCBF. Findings are also related to allelic variation in genes of interest, for determination of which participants sign separate consent for NIH approved protocol 95-M-0150 Neurobiological Investigation of Patients with Schizophrenia Spectrum Disorders and Their Siblings, PI: Karen F. Berman, MD. We also draw comparisons between subjects with inherited vs. sporadic Parkinson s disease to determine whether the PET phenotype is the same in both groups, and we compare system-level, circuit-based pathophysiology across PD and schizophrenia groups. Each subject is further screened with an MRI to rule out structural abnormalities and also to further delineate areas of interest in the PET scans.

This large ongoing study at NIMH investigates the neurobiology of schizophrenia by identifying susceptibility genes, evaluating their impact on brain function to better understand how to treat and prevent this illness.

Cognitive impairment (such as challenges in thinking and memory) is a core aspect of schizophrenia (SCZ), contributing to disability and poor functional outcomes. Additionally, almost half of the patients with SCZ are obese, the prevalence of type 2 diabetes is 3-6 times higher, and life expectancy is lower by 15-20 years compared to the general population. This is relevant as metabolic syndrome and diabetes are both associated with worse cognition among SCZ patients. Recent work studying the relationships between metabolic health and cognition has encouraged a new way of thinking about SCZ as both a metabolic and cognitive disorder. Brain insulin is involved in several processes relevant to SCZ, and abnormal brain insulin action may help explain both cognitive and metabolic abnormalities in patients with SCZ, but this has not been examined previously. Glucose uptake in several brain regions relevant to SCZ has been shown to be partially dependent on insulin. Therefore, in this study, the researchers will measure glucose uptake in the brain using an 18F-fluorodeoxyglucose ([18F]-FDG) positron emission tomography (PET) scan after an intranasal insulin stimulus, and will compare this measure between patients with SCZ and healthy controls.

This project aims to evaluate the feasibility, acceptability and preliminary efficacy of remotely delivered CAE among patients with schizophrenia (CAE-S).