View clinical trials related to Schizophrenia.
Filter by:To determine whether shared decision making (SDM) intervention improves patient satisfaction in patients with first-admission schizophrenia compared with usual care.
This study is designed to look at the effects of naltrexone on weight loss in individuals treated with antipsychotic medications. Naltrexone is an FDA approved medication for the management of alcohol dependence and drug dependence, but has not been fully evaluated for its effect on weight loss in individuals with severe mental illness (i.e. schizophrenia, schizoaffective disorder, bipolar disorder etc.) The purpose of this study is to find out how effective two different doses of oral naltrexone is on reducing body weight when compared to placebo (an inactive substance or "sugar pill").
The purpose of this study is the evaluation of effectiveness of paliperidone palmitate within three different group of schizophrenia patients.
The purpose of this study is to evaluate the efficacy and safety of long acting injectable microspheres of risperidone in participants with schizophrenia (psychiatric disorder with symptoms of emotional instability, detachment from reality, often with delusions and hallucinations, and withdrawal into the self), schizophreniform or schizoaffective disorders (disorders in which there is a loss of ego boundaries or a gross impairment in reality testing with delusions or prominent hallucinations).
The purpose of this study is to determine how low and high does of brexpiprazole binds to certain receptors in the brain. This will be determined by PET scans taken pre-dose and post-dose.
The investigators hypothesize that Peony-Glycyrrhiza Decoction (PGD) adjunctive therapy could reduce the incidence of prolactin (PRL)-related adverse events in patients with schizophrenia and suppress antipsychotic-induced elevation of PRL levels. This is a placebo-controlled trial conducted in schizophrenic patients to determine whether PGD adjunctive treatment could produce greater biochemical and clinical improvement on hyperprolactinemia (hyperPRL) compared to placebo treatment.
The objective of this study is to determine the mechanisms by which varenicline, an effective smoking cessation treatment, protects against relapse. Varenicline will be administered in smokers with schizophrenia and control smokers using a randomized, double-blind, cross-over design. Smokers will be asked to stop smoking overnight; the next day the ability to resist smoking will be assessed in a laboratory smoking lapse paradigm. Measures of tobacco craving, reinforcement and withdrawal-related cognitive dysfunction will be correlated with time to lapse. The results could have significant clinical implications by identifying mechanisms by which smokers with schizophrenia are at more risk for relapse than the general population, leading to the development of more effective smoking cessation therapies.
Investigators have recently completed a pilot study exploring the safety and efficacy of using a virtual-reality based cue platform to elicit craving in smokers with schizophrenia(SWS)(Wehring et al, unpublished). In this study, participants with schizophrenia (n=16) showed increased attention to cigarettes and changes in craving measures when participating in the VR craving platform. In addition, participants tolerated the VR environment without undue adverse effects or exacerbation of symptoms. Adverse effects from the VR environment did not differ from that in a non-mentally ill population, and included headache, nausea, and dizziness as most commonly occurring factors. Persons in this pilot also showed acceptable rates of Immersion and Presence in the VR environment, showing the potential use of this form of environment for this and other purposes. In this study, investigators will examine virtual reality cue-reactivity in smokers with schizophrenia, with a focus on the relationship of cue-reactivity with self-identified triggers/cues. Smokers with schizophrenia often identify specific cues that trigger craving. Many of these are environmental (scent, sight of smoking paraphernalia or cigarettes, related objects, or social situations), however, a significant amount of smokers describe emotionally-based factors (sadness, being upset, etc.) as primary cues and triggers. Most methods used to elicit craving in experimental studies are executed via using environmental cues like sight of cigarettes or smoking paraphernalia. It is not known if smokers with schizophrenia(SWS) who are strongly emotionally triggered will be responsive to environmental triggers in a cue-elicited craving platform. This is an important research question, as the testing of anti-craving interventions should be generalizable for use across SWS with differing triggers to smoking. The VR-based environmental program from our pilot study, which includes sight, scent, and social cues, will be used to test pre-identified environmental cues/triggers and their effects on cue-elicited craving in 30 SWS. Subjective reports, mood and emotion measures, and objective physiological measurements will be used to identify and quantify environmental craving responsivity as well as tonic craving. Given the high prevalence of smoking among individuals with schizophrenia, understanding some of the environmental factors that serve to maintain nicotine dependence is a critical step in improving smoking cessation treatment outcomes. Establishing and validating a model of cue-elicited responsivity will allow future investigations of craving, and ultimately designs for studying the efficacy of anti-craving medications in people with schizophrenia.
To evaluate the safety and tolerability of multiple doses of PF 02545920 administered orally to psychiatrically stable subjects with schizophrenia receiving background antipsychotic +/- other adjunctive medication.
The rate of type-2 diabetes mellitus (T2DM) is at least 2-3 times higher in persons with psychotic illnesses than in the general population. Life expectancy of individuals with psychosis is also 20-25 years less than the general population, primarily due to premature onset of cardiovascular disease (CVD). Despite the high risk for T2DM and CVD, psychotic illness has been an exclusion criterion in all large-scale studies of diabetes prevention and management. We propose a 3-year randomized controlled trial examining the effectiveness of a lifestyle intervention (LI) aimed at reducing caloric intake and increasing physical activity in overweight or obese individuals (N=150) suffering from both a psychotic illness and T2DM. Weight and glycemic control will be the primary outcome variables. It is hypothesized that a significant weight reduction and improvement in glycemic control will be found in those who receive the LI relative to those who do not.