Clinical Research Directory

Chronical Illness-related Limitations of the Ability to Cope With Rising Temperatures, Third Wave

The CLIMATE-III Observational Study examines to what extent chronically ill patients experience adverse health effects because of heat and whether the patients' specific health behavior, somatosensory amplification, risk and benefit perception, self-efficacy, health literacy, and the degree of urbanisation of the patients' administration district are associated with these effects. Study participants from Germany and Italy will be included in the sample.

PET Scanning in Parkinson s Disease

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....

Studies of Frontal Lobe Brain Functioning in Schizophrenia

The purpose of this study is to use brain imaging technology to investigate the role of the frontal lobe of the brain in the thinking of individuals with schizophrenia and other neuropsychiatric disorders and healthy volunteers. Participants in this study will undergo a positron emission tomography (PET) scan of the brain while performing neuropsychological tests. Some of the tests involve cognitive operations that depend upon the frontal cortex. Interactions between frontal lobe activation, cognitive behavior, and neuropharmacology will be assessed by measuring regional cerebral blood flow (rCBF) during treatment with drugs that may affect frontal lobe physiology.

Genetic Study of Schizophrenia

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....

Study of the Impact on the Therapeutic Alliance of a Short Initial Psychoeducation Programme in Patients With Early Schizophrenia

Schizophrenia is a serious, disabling and unfortunately common disease. Its prevalence is in the order of 0.6 to 1% in the general population, a figure that remains relatively stable in the various cultures. The overall prognosis, particularly in terms of function, remains largely negative. The investigators know that a global management can considerably slow down this unfavourable evolution: according to the recommendations, the patient suffering from schizophrenia requires an effective and well-tolerated pharmacotherapy, associated with an adapted psychotherapy as well as cognitive remediation workshops, training in social skills, and psycho-education. There are indeed a large number of studies that have shown these elements in patients with schizophrenic disorders that have been present for several years. The investigators now know that early treatment is a key prognostic element. Indeed, the earlier care is provided during the first psychotic episode, the better the subsequent prognosis: the probability of further decompensation is reduced, as is the risk of developing deficits, such as cognitive difficulties. However, there is a lack of access to all the recommended aspects of management in the initial phase of the disorder, particularly concerning early psycho-educational programmes for patients, which have been relatively little studied in clinical research. In this context, it seems relevant to study the impact of a new programme of this type on a fundamental parameter, conditioning the subsequent access to care: the therapeutic alliance. "PPIC" is a short psycho-educational programme in 4 sessions, specifically designed to accompany young patients, and focused on the issues of this crucial period of the care process.

A Clinical Trial to Study the Efficacy and Safety of an Investigational Drug in Acutely Psychotic People With Schizophrenia

A clinical trial to study the efficacy and safety of an investigational drug in acutely psychotic people with schizophrenia. Participants in the study will either receive the drug being studied or a placebo. This study is accepting male and female participants between 13 years old -65 years old who have been diagnosed with schizophrenia.

Does Abnormal Insulin Action in the Brain Underlie Cognitive and Metabolic Dysfunction in Schizophrenia

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.

Cognitive Behavioral Therapy Added to Risperidone for Schizophrenia

This study evaluated whether cognitive behavioral therapy (CBT), when added to risperidone treatment, improves cognitive function and serum brain-derived neurotrophic factor (BDNF) levels in patients with schizophrenia. Participants were adults with stable-phase schizophrenia who were receiving risperidone therapy. They were assigned to either a control group receiving risperidone alone or an intervention group receiving risperidone plus 10 weekly CBT sessions. Cognitive function was assessed using the Indonesian version of the Cognitive Assessment Interview (CAI-Ina). Serum BDNF levels were measured from blood samples using an enzyme-linked immunosorbent assay (ELISA). Measurements were performed at baseline and after 10 weeks. The study was conducted at Rumah Sakit Khusus Daerah Dadi, South Sulawesi, Indonesia.

Research Sense of Familiarity in Psychotic Patients

Categorical perception of familiarity in schizophrenic patients

Gut Microbiome in AP Naive

Antipsychotic (AP) medications are currently the cornerstone of treatment for schizophrenia (SCZ), with off-label prescription rapidly increasing in youth, with an established two-fold increase in standardized mortality ratio attributable to cardiovascular disease in this population. However, APs have been associated with common and serious metabolic adverse effects including weight gain and diabetes, to which youth are disproportionally vulnerable. The Gut Microbiome (GMB) has been suggested as a potential target warranting further study as a mechanism of AP induced weight gain and has also been linked directly with cognition and behavior. It is hypothesized that there will be changes in the gut microbiome overtime with treatment correlated with metabolic measures and that APs will produce changes in glucose tolerance, insulin sensitivity, adipokines, glucagon like peptide (GLP)-1, lipids, fasting glucose, body weight, and cognition.

A Study to Evaluate the Effect of KarXT on Urological Safety

The purpose of this study is to characterize the effect of KarXT on voiding dynamics and urological safety in participants with DSM-5 schizophrenia.

Evaluation of NBI-1117570 in Inpatient Adults With Schizophrenia

The primary objective for this study is to evaluate the efficacy of NBI-1117570 compared with placebo on improving behavioral and psychological symptoms of schizophrenia in adults who warrant inpatient hospitalization.

Rochester Forensic Assertive Community Treatment Model in Minnesota

This study evaluates the Rochester Forensic Assertive Community Treatment (R-FACT) model in Minnesota. R-FACT is an enhanced version of Assertive Community Treatment designed to support individuals with serious mental illness who are involved in the criminal justice system. Participants were randomly assigned to receive either the R-FACT intervention or standard outpatient mental health services. The study examines whether R-FACT reduces criminal justice involvement, improves mental health outcomes, and enhances community functioning compared to usual care over a 24-month follow-up period.

Magnetic Resonance Imaging (MRI) of Neuropsychiatric Patients and Healthy Volunteers

The purpose of this study is to use brain imaging technology to compare differences in brain structure, chemistry, and functioning in individuals with brain and mental disorders compared to healthy volunteers. Schizophrenia is a brain disorder that results from subtle changes and abnormalities in neurons. These deficits likely occur in localized regions of the brain and may result in widespread, devastating consequences. The neuronal abnormalities are inherited through a complex combination of genetic and environmental factors. Brain imaging technologies can be used to better characterize brain changes in individuals with schizophrenia. This study will use magnetic resonance imaging (MRI) scans to identify predictable, quantifiable abnormalities in neurophysiology, neurochemistry and neuroanatomy that characterize schizophrenia and other neurological and neuropsychiatric disorders.

A Study of Brenipatide in Adult Participants With Schizophrenia

The purpose of this study is to assess the efficacy and safety of brenipatide when administered with standard of care (SoC) compared to placebo plus SoC for treatment of schizophrenia. The trial is divided into three periods as follows: Screening period will last approximately 1 month, treatment period will last a maximum of 12 months, and the follow up period will last approximately 2 months. The length of time of your study participation may last up to approximately 15 months.

Metabolic Effects of Adjunctive Lumateperone Treatment in Clozapine-Treated Patients With Schizophrenia

The main question this study is trying to answer is whether lumateperone, an FDA-approved antipsychotic drug, can help reduce possible side effects of clozapine, such as weight gain and elevated levels of sugar and bad cholesterol. Participants will be randomly assigned to either take lumateperone (Caplyta) or a placebo for 12 weeks, in addition to their regularly prescribed clozapine. During their participation, patients will answer questions about their psychiatric and daily functioning, have blood drawn, and have their body composition analyzed (similar to stepping on a scale).

tRNS in Anterior Cingulate Cortex Reduces Craving Over Dual Pathology Patients

The purpose of this study is to study the efficacy and security of noninvasive brain stimulation as a new approach for patients with Substance Use Disorders (SUDs) plus other psychiatric conditions like ADHD, Schizophrenia, Bipolar disorder, etc.

Evaluation of Treatment Satisfaction and KarXT Utilization Registry (RESKU)

The purpose of this study is to understand treatment preference and satisfaction among adults with schizophrenia in the United States who are prescribed xanomeline and trospium chloride (X/T) therapy

Memantine Augmentation of Targeted Cognitive Training in Schizophrenia

Treatment of schizophrenia currently includes antipsychotic medications and cognitive therapies which improve some symptoms, but do not sufficiently restore cognitive functioning or reduce psychosocial disability. We hypothesize that medications that specifically target sensory information processing deficits, rather than psychotic symptoms per se, will significantly enhance the benefits of a sensory-based targeted cognitive training (TCT) intervention in patients with schizophrenia. We will complete a randomized, double-blind clinical trial to: 1) confirm that the drug memantine augments TCT learning; 2) determine whether memantine enhances the clinical benefits from a full 30 session course of TCT vs. TCT plus placebo in antipsychotic- medicated schizophrenia patients, and 3) determine if memantine's enhancement of TCT is most effective in biomarker-defined subgroups of patients.

A Study to Assess the Efficacy and Safety of ML-007C-MA for the Treatment of Inpatient Adults With Schizophrenia

ML-007C-MA-211 is a Phase 2, randomized, double-blind, placebo-controlled study to evaluate the efficacy, safety, and tolerability of orally administered ML-007C-MA in inpatient adult participants aged 18 to 64 years with schizophrenia experiencing an acute exacerbation of psychosis. The primary objective is to evaluate the efficacy of ML-007C-MA compared with placebo in the treatment of subjects with inadequately controlled symptoms of schizophrenia as measured by the Positive and Negative Syndrome Scale (PANSS) Total Score.

fMRI-based Neurofeedback to Relieve Drug-resistant Auditory Hallucinations

The INTRUDE trial aims at assessing the efficacy of an fMRI-based neurofeedback procedure on drug-resistant auditory hallucinations. Hallucinations are complex and transient mental states associated with subtle and brain-wide patterns of activity for which we were recently able to validate an fMRI multivariate decoder. Based on this progress, we can track patients' hallucinatory status using real-time fMRI. We will test whether schizophrenia patients with drug-resistant hallucinations can be trained to maintain the brain state associated with a no-hallucination condition using appropriate strategies and thus reduce overall severity. We will refer to a double-blind randomized placebo-controlled design. A total of 86 patients will be enrolled and equally split in an active neurofeedback group (n=43) and a sham group (n=43), matched for sex, age and PANSS scores. Each patient will benefit from 4 runs of either active or sham neurofeedback. The primary outcome measure will be the mean decrease of AHRS scores relative to baseline, and at 1 month post-treatment. We expect significant clinical benefits from fMRI-based neurofeedback on drug-resistant hallucinations compared with the sham group.

A Phase I Clinical Trial to Evaluate the Safety, Tolerability and Pharmacokinetic Characteristics of KR23248 Capsules in Healthy Adult Subjects

This study aims to investigate the safety, tolerability and pharmacokinetic characteristics of KR23248 capsules in healthy subjects. This study will be conducted in China. It will enroll male and female participants aged 18 years to 45 years.

Efficacy of NBI-1117568 in Preventing Relapse in Adults With Schizophrenia

The main objective of the study is to evaluate NBI-1117568 compared with placebo in delaying relapse of symptoms of schizophrenia in adults who have a stable response after open-label treatment with NBI-1117568.

NBI-1117568-SCZ3030: Evaluation of NBI-1117568 in Inpatient Adults With Schizophrenia

The primary objective for this study is to evaluate the efficacy of NBI-1117568 compared with placebo on improving behavioral and psychological symptoms of schizophrenia in adults.