
Study to Assess the Efficacy, Safety, and Tolerability of AZD8529 in Adult Schizophrenia Patients...
SchizophreniaThe purpose of this study is to determine whether treatment with daily oral dose of AZD8529 40 mg administered over 28 days is safe, well tolerated and improves main symptoms of schizophrenia in adult schizophrenia patients.

Efficacy, Safety, and Tolerability of SPD489 in Adults With Schizophrenia and Predominant Negative...
Schizophrenia and Predominant Negative SymptomsTo explore the efficacy of SPD489, as adjunctive therapy to a stable dose of atypical antipsychotic medication, on negative symptoms in adult subjects with clinically stable schizophrenia and predominant negative symptoms, as measured by the Scale for the Assessment of Negative Symptoms (SANS).

A Study of the Effect of Carbamazepine on the Pharmacokinetics of Paliperidone Extended Release...
SchizophreniaBipolar DisorderThe purposes of this study are to evaluate the effects of a potent metabolic enzyme inducer, carbamazepine, on the steady-state pharmacokinetics of orally administered paliperidone ER and to evaluate the safety and tolerability of the treatments in clinically stable patients with a diagnosis of schizophrenia or bipolar I disorder.

A Bioequivalence Study of 15 mg ER OROS Paliperidone
SchizophreniaThe purpose of this study is to evaluate the bioequivalence between the Phase 3 and the to-be-marketed formulations of extended release (ER) OROS paliperidone and to evaluate the effect of food on the highest to be marketed tablet strength. Additionally, the safety and tolerability of the treatments in healthy volunteers will be assessed.

A Study of the Potential Effects of Trimethoprim on the Pharmacokinetics of ER OROS Paliperidone...
SchizophreniaThe purpose of this study is to evaluate the effects of an organic cation transporter inhibitor, trimethoprim, on the pharmacokinetics of orally administered ER OROS paliperidone and to assess the safety and tolerability of the treatments in healthy male volunteers.

Oxytocin and Social Cognition in Schizophrenia
Social CognitionSocial Anxiety1 moreObjective: Social Cognition and Emotional Intelligence have been shown to be deficient in patients with schizophrenia and these are not remediated by antipsychotic medications or psychosocial interventions. Social cognition is associated with functional outcome, an important step in striving for recovery in this population. The hormone and neurotransmitter, oxytocin, which has been associated with social bonding and trust has been shown to improve measures of some aspects of social cognition in humans. The study will assess the effect of acute administration of intranasal oxytocin on measures of social cognition and functioning as well as on emotional intelligence and symptoms. Study population: The study population will include patients with a DSM-IV diagnosis of schizophrenia or schizoaffective disorder who have been on a stable medication regimen for 6 weeks. We will enroll a total of 30 subjects (N=15 placebo and N=15 oxytocin groups). Experimental design and methods: After a one week lead in phase, participants will undergo 3 weeks of oxytocin (20 IU BID) or placebo administration (double blind) in addition to their existing medication regimen. Outcome measures will be administered during the lead in phase, and at the end of the study drug administration phase (under the acute effect of OT). The primary outcome measure will be the Mayer-Salovey-Caruso Emotional Intelligence Test (MSCEIT) and the Maryland Assessment of Social Competence (MASC). Secondary measures include rating from the domains of social cognition (emotion perception, attributional style, theory of mind and social perception), symptom rating and measures of social anxiety and quality of life. Side effects and symptoms will be measured weekly.

Cognitive Training to Improve Work Outcomes in Severe Mental Illness
SchizophreniaBipolar Disorder1 moreThis study will compare the efficacy of two types of supportive treatments for a program called Individual Placement and Support, which helps people with severe mental illnesses find and keep jobs.

Varenicline Adjunctive Treatment in Schizophrenia
SchizophreniaSchizoaffective Disorder1 moreThe principal aim of the project is to conduct an off-label adjunctive clinical trial evaluating varenicline as a treatment for core neurobiological and clinical deficits in schizophrenia, in addition to evaluating for smoking cessation in schizophrenia patients.

Antipsychotic Polypharmacy in Schizophrenia
SchizophreniaThe literature suggests that when a patient is prescribed more than one antipsychotic for at least 30 days, he or she is likely to continue on that combination. In this 12 week study 100 adult patients being treated on more than one antipsychotic medication for at least 30 days will be recruited. In order to control for the natural course of the illness, patients will be randomly assigned to one of two groups: the first group will continue the second medication hidden in a capsule at the same dose, while the second group will be given an inactive capsule (placebo) - the capsules in both group will be identical such that neither the patient nor the treating doctor will be able to identify the group assignment.

Comparison of Antipsychotics for Metabolic Problems in Schizophrenia or Schizoaffective Disorder...
SchizophreniaSchizoaffective DisorderThe study will compare the effectiveness of antipsychotic medications for patients with schizophrenia or schizoaffective disorder for whom a medication change may be indicated because of an increased risk of cardiovascular disease.