View clinical trials related to Schizophrenia.
Filter by:This is a 12-week, with a 32-week follow-up, rater-blind, randomized controlled trial to determine whether patients with chronic schizophrenia or schizoaffective disorder receiving two different antipsychotics simultaneously will have any significant change in psychopathology following conversion to antipsychotic monotherapy. Additionally, the effects of conversion to antipsychotic monotherapy will be assessed by neurocognitive tests. The study will be conducted at the Clinical Research and Evaluation Facility (CREF), a specialized research unit jointly operated by the Nathan S Kline Institute for Psychiatric Research (NKI) and Rockland Psychiatric Center (RPC). Patients will be recruited from the regular in-patient units of RPC and transferred to the CREF. Following baseline assessments, patients will be randomized to continued antipsychotic polypharmacy treatment or to systematic conversion to monotherapy. Conversion to antipsychotic monotherapy will be assessed across multiple domains of psychopathology using the Positive and Negative Symptom Scale (PANSS). The primary outcome measure is PANSS total score. The secondary outcome measure is time on medication (all-cause dropouts). Mixed Model Repeated Measures (MMRM) will test the hypothesis that conversion to antipsychotic monotherapy will show minimal change from the control group.
This is a randomized, double-blind, active-controlled, 6 month study designed to evaluate the cognitive effects of treatment with CYP-1020 compared to risperidone. The primary efficacy endpoint will occur after 6 weeks of treatment; additional (secondary) efficacy endpoints will occur after 12 and 24 weeks of treatment. Up to 450 patients will be randomized to CYP-1020 or risperidone in a 1:1 ratio. The study will utilize a flexible dose escalation scheme designed to allow patients to titrate to their maximally tolerated dose; doses of CYP-1020 may range from a minimum of 15 mg to a maximum of 35 mg, whereas doses of risperidone will range from a minimum of 1 mg to 3 mg BID (2-6 mg daily). To ensure effective blinding across all treatment groups, all patients will be treated twice daily with study drug and/or placebo, as indicated (i.e., double-dummy design).
The purpose of this study is to determine whether weight gain will be significantly less in LY2140023 than aripiprazole in patients with schizophrenia.
The purpose of this study is to gather normative data from healthy adults and to determine a sensitive and specific cut-off value for responders and non-responders to the Niacin Skin Flush Test in a sample of first episode psychosis patients.
The purpose of this study is to determine whether at least 1 dose level of LY2140023 given to acutely ill patients with schizophrenia will demonstrate significantly greater efficacy as compared to placebo.
The aim of the investigators project is to explore the mechanisms of pain insensitivity in patients with schizophrenia, in order to prevent its invalidating consequences. The investigators will couple methods of experimental psychology with EEG and blood samplings, in order to distinguish the role of non-painful perception, attention, aversive effects, and pain expression, and the investigators will explore an original neurobiological hypothesis regarding the activation of opioid receptors.
This nested design clinical outcome study of psychiatric case manager education on disease state, psychopharmacology of schizophrenia, relapse, motivational interviewing, and the process of psychological adjustment post-psychosis (Milestones of Adjustment Post-Psychosis Recovery Model-MAPP) will test the following hypotheses: 1. Medication non-adherence in patients with schizophrenia assigned to case managers who receive MAPP training will decrease from their pre-study rate and from the reported national average after one year enrollment compared to consumers not enrolled in the MAPP arm of the study. 2. Consumers in the MAPP intervention will have higher Quality of Life Enjoyment and Satisfaction Questionnaire (Q-Les-Q (53) scores than consumers not enrolled in the MAPP at quarterly measures. 3. Consumers enrolled in the MAPP intervention arm of the study will successfully complete the first two phases of the MAPP Recovery Model in one year. 4. Consumers in the MAPP intervention arm will have greater symptom reductions at quarterly data points compared to consumers not enrolled in the MAPP intervention arm.
Study hypothesis is that patients on antipsychotics medication treated with metformin will show loss in weight and improved measures of glucose metabolism.
The purpose of this study is to determine the tolerability of the medication cysteamine bitartrate on schizophrenia patients and to evaluate the effect of the medication on the symptoms of schizophrenia.
This study in patients with stable schizophrenia will investigate the effect of JNJ-39393406 on Event Related Potentials (Auditory Evoked Potential [AEP] P50, AEP P300 and Mismatch Negativity [MMN]) after single dose administration.