Active clinical trials for "Schizophrenia"

To characterize further the effects of D-cycloserine augmentation of antipsychotic treatment on negative symptoms, performance on neurocognitive tasks, and on markers for glutamatergic, dopaminergic and serotonergic function in serum and cerebrospinal fluid. To determine if negative symptoms and cognitive function improve over time, if these improvements meaningfully impact quality of life factors, if they correlate with markers of neuronal function, and if subpopulations can be identified according to response. Dysfunction of glutamatergic neuronal systems has recently been implicated in the pathophysiology of schizophrenia based on the finding that non-competitive inhibitors of the NMDA receptor can reproduce in normals the positive symptoms, negative symptoms, and cognitive deficits of schizophrenia. Furthermore, glutamatergic dysfunction may alter forebrain dopaminergic neuronal activity, a system central to the antipsychotic action of typical neuroleptics. It is believed that enhancing NMDA receptor function by systemic treatment with D-cycloserine, a partial agonist at the glycine modulatory site of the NMDA receptor, will reduce symptoms in schizophrenia. Sixty schizophrenic outpatients with prominent, primary negative symptoms are treated with antipsychotic medication and are randomly assigned to D-cycloserine or placebo for a 6-month, fixed-dose trial. The primary outcome measure is the total score on the Scale for Assessment of Negative Symptoms (SANS). A neuropsychological battery, which emphasizes tests sensitive to prefrontal cortical function, is administered. Blood is obtained at several time points and CSF is obtained at Week 8 for assay of concentrations of D-cycloserine, glutamate, HVA, and 5HIAA.

Recent research studies of early onset-obsessive compulsive disorder (OCD) and Tourette's syndrome have questioned whether autoimmunity could play a role in the development of these conditions. As a result, there has been an increased interest in the field of research on the potential involvement of autoimmunity in other psychiatric conditions like schizophrenia. Autoimmune conditions occur when the normal immune system of the body begins working against itself. The immune system recognizes cells as foreign and begins to attack them. There are several similarities between autoimmune diseases and schizophrenia. Genetics play some role in the development of both diseases. Both conditions show a similar course, and both conditions tend to show worsening of symptoms when exposed to stress. Previous research studies have shown intravenous immunoglobulin to be safe and effective when used in neurologic diseases involving the immune system. Presently the NIMH is testing the effectiveness of IVIg in OCD and Tourette's syndrome. Intravenous Immunoglobulin IVIg is a medication that has been used to treat diseases like Kawasaki disease, systemic juvenile rheumatoid arthritis, lupus nephritis, and idiopathic thrombocytopenic purpura. The drug modifies the body's natural immune reactions. This research study is a 13-week trial of intravenous immunoglobulin (IVIg) on patients suffering from childhood-onset schizophrenia, who have failed to respond to other therapies.

This study is a validation study to evaluate the acceptability, feasibility and impact of a mobile psychosocial intervention to enhance social functioning in people with schizophrenia.

Interventional, multicenter, open-label, 20 weeks study To identify efficacy and safety in switching from oral aripiprazole to Abilify Maintena. To identify efficacy and safety in switching from oral atypical antipsychotics other than aripiprazole to Abilify Maintena

Purpose: To develop and test the feasibility of an exercise intervention that combines group walking, activity tracking, and heart rate monitoring, and determine the effectiveness of this intervention on the physical and mental health for individuals with schizophrenia spectrum disorders. Participants: 14 individuals with schizophrenia spectrum disorders. Procedures (methods): During the baseline assessment, subjects will be provided with a Fitbit wristband and instructed how to use it. During the first group session, subjects will be taught how to use their heart rate (on the Fitbit) to determine how fast subjects should walk (to achieve the appropriate exercise dosage). Information on proper care, usage, and how to determine the appropriate heart from the watch, which will be used to guide the intensity of the walk will be provided to subjects and reviewed at each group session. For all clinic based group sessions, subjects will arrive at the STEP clinic to meet the entire group and leaders and be reminded of the heart rate (HR) that corresponds with the intensity of that group session. Next, the group will go outside and walk for 30 minutes. At the completion of 30 minutes, everyone will go back into the clinic for water and review of the walk. After the second group session of each week, subjects will receive weekly progress reports of their steps and minutes spent walking the prior week (obtained from Fitbit devices). During this session, subjects will also set individual goals for the upcoming week for both their "intensity walks" and total steps per day.

In this study, investigators designed a double-blind randomized trial to compare the efficacy and safety between sodium valproate, amisulpride and MECT combination therapy in clozapine-treated refractory schizophrenia (CTRS).

The purpose of this study was to investigate the effects of oxytocin on negative symptoms and social cognitive task performance in schizophrenia. The investigators conducted a randomized, placebo-controlled trial testing the effects of twice daily intranasal oxytocin treatment for 14 days on psychotic symptoms and social cognition in patients with schizophrenia. The investigators hypothesize that PANSS scores will decline significantly and several social cognition measures will improved significantly or nearly significantly in oxytocin but not placebo recipients.

This is a phase 1, double-blind, placebo-controlled, 3 period cross-over study to evaluate CVN058 target engagement by measuring auditory evoked potential mismatch negativity (MMN) downstream to 5-hydroxytryptamine receptor 3 (5-HT3) as a pharmacodynamic (PD) marker.

Psychosis and schizophrenia are common and costly mental health problems. Psychosis is the name given to a group of mental conditions in which cause people to perceive or interpret things differently from those around them. One of the most common causes of psychosis is schizophrenia, a condition that causes a range of psychological symptoms, including hallucinations (hearing and/or seeing things) and delusions (believing something that is not true). One of the main treatment options for psychosis and schizophrenia is long-term treatment with antipsychotic medication, but many patients still find life difficult. Antipsychotic drugs can also have dangerous and unpleasant side effects. Finding alternatives to long-term drug treatment is a priority for patients and services. This study is testing the effects of gradually reducing antipsychotic medication in people with schizophrenia, psychosis or similar conditions in order to see if it can help improve day-to-day functioning and how it affects their chance of suffering a relapse (worsening of their condition).

To evaluate the efficacy and safety of adjunctive pimavanserin compared with adjunctive placebo in the treatment of the negative symptoms of schizophrenia