View clinical trials related to Disease.
Filter by:The purpose of the study is to determine whether two commonly-prescribed antipsychotic medications (aripiprazole and risperidone) have different effects on brain function and cognition in schizophrenia patients.
Background: - Parkinson s disease (PD) affects half a million Americans, causing slow movements, tremors, stiffness, and trouble walking. Currently, these symptoms are measured by physical exam, but this is unreliable and requires an office visit. Researchers want to study a different way to measure PD symptoms, using a home-testing machine called a QMAT device. It can test how quickly someone moves doing different tasks. Researchers will study how this testing compares to physical exam testing and whether the device can detect changes in PD symptoms over time. Objectives: - To see if a home testing device can be used to evaluate Parkinson s disease symptoms. Eligibility: - Adults at least 18 years old with PD. Design: - Participants will have about 22 clinic visits over 5 years. Each visit will take up to 3 hours. Visits will be scheduled along with visits for another study. - At visit 1, participants will learn to use the QMAT device and how to send testing information to the clinic by computer. The device has a computer screen, some buttons, and some pegs. Participants will get a device to take home and any accessories. - Participants will learn 2 QMAT tests. For one, they will press keys as fast as possible. For the other, they will move pegs into holes. The tests will take a total of about 20 minutes. - Participants will take both tests at home, 2 times on the same day each week, once before their medication, once after. - A study coordinator will monitor the participant s computer data and discuss the at-home testing at the clinic visits.
Background: - Some children and teenagers have conditions known as conduct disorders. They often have long-term chronic behavior problems, such as defiant behavior or violence. Conduct disorders are often treated with antipsychotic medication. Researchers want to study two types of newer antipsychotics (aripiprizole and risperidone) for children and adolescents with conduct disorders. They will look at how these drugs affect brain activity. To do so, they will give brain activity tests using magnetic resonance imaging (MRI). The tests will compare the results from healthy volunteer children and teens to those of others with behavior problems. Objectives: - To see how atypical antipsychotics affect brain activity of children and teenagers with conduct disorders. Eligibility: - Children and teenagers between 10 and 18 years of age who have a conduct disorder and are taking aripiprizole. - Children and teenagers between 10 and 18 years of age who have a conduct disorder and are taking risperidone. - Children and teenagers between 10 and 18 years of age who have a conduct disorder and are not taking an atypical antipsychotic. - Healthy volunteers between 10 and 18 years of age. Design: - Participants will be screened with a physical exam and medical history. Parents/guardians will be asked questions about their child s feelings, experiences, and behavior. Participants will also answer questions about their feelings and moods. - This study will involve two visits. Each visit will involve MRI scanning. - At the first visit, participants will have memory and thinking tests. The tests will involve making decisions or playing games. Some of these tests will use MRI scanning to look at brain activity. - The second visit will be 3 to 5 months after the first visit. The tests from the first visit will be repeated.
To evaluate the efficacy and safety of brexpiprazole as adjunctive treatment in elderly patients with Major Depressive Disorder (MDD)
Major depressive disorder (MDD) affects about 5% of adolescents and is on the rise both internationally and in Norway. Further, it is also associated with increased risk for suicide. Not surprisingly, depression is the largest reason for referral to specialty mental health services for adolescents (13-17 years) in Norway. Although anti-depressants and Cognitive behavioral therapy are strong treatments and have received extensive research, the best treatments show a recovery rate of only 37 %. There is a need to develop and test alternative treatments that can stand alone or augment anti-depressant medication. Family factors play an important role in the etiology, maintenance and relapse of depression. A promising family-based treatment (Attachment based family therapy- ABFT) was imported to Norway and its feasibility tested in a pilot randomized clinical trial with 20 families. The results showed promising treatment outcomes. Although the developers of the model have refined, adapted the model to suicidal ideation and built strong technology to support dissemination, a definitive study of ABFT for adolescents with major depression has not yet been conducted. Therefore the primary aim of this study is to test if ABFT is more effective that enhanced usual care (EUC) to treat clinic-referred adolescents with major depression. The investigators will test the hypothesis that 12 weeks of ABFT therapy will produce a greater proportion of adolescents report remission from depression and symptom change than 12 weeks of enhanced clinical care (EUC). Secondary research aims are i) to test a hypothesis that parent-adolescent conflict will be more sensitive to change for adolescents receiving ABFT that adolescents receiving EUC ii) to explore patterns of change in suicidal ideation in the recruited sample in the acute-phase treatment. Central challenges to the study are i) blinding therapists/patients, which is difficult in psychotherapy trials ii) lack of a standardized control condition, and iii) selecting and training regular staff therapists to high adherence levels. However, with tighter control over these factors than is normal for a typical effectiveness trial, the investigators expect results to show what to expect under the "best of conditions" in community clinics. Benchmark derived from the study will inform how to effectively train therapists and subsequently implement the model into mainstream services.
Background: - Near-infrared spectroscopy (NIRS) is a functional imaging technique that can be uses light to study brain function while allowing for movement. To look at blood flow in the brain, NIRS uses a low-power light source with detectors that see how the light changes as it passes through brain tissue. Brain blood flow can indicate which parts of the brain are active during different tasks. Researchers want to study children with attention deficit hyperactivity disorder (ADHD) and autism spectrum disorders (ASD) and will use NIRS to compare the blood flow in the brain of children with ADHD and ASD with that of typically developing children. Objectives: - To see how well NIRS can detect changes in brain blood flow during tests of thinking and memory in children. - To compare blood flow in the brains of typically developing children and those with ADHD or ASD. Eligibility: - Children between 4 and 8 years of age with ASD, ADHD, or children with no psychiatric diagnoses. Design: - Participants will be screened for eligibility. Those who are taking stimulant medication for ADHD or ASD will need to stop taking it for 3 days before the study visit. - After participating in a screening assessment, all participants will have one study visit. At this visit, they will have be asked to complete two tasks during a NIRS scan. For both tasks, they will react to images on a computer screen. This visit will last about 2 hours. - This is a testing study only. No blood or other samples will be needed for this study.
This is an open-label extension protocol that will provide necessary data on the safety, tolerability, pharmacokinetics and efficacy of STX209 among subjects with ASD.
The purpose of this study is to determine whether d-cycloserine augments the clinical effects of exposure-based cognitive-behaviour therapy for panic disorder.
The primary purpose of this study is to determine whether ELND005 is effective in the maintenance treatment of bipolar 1 disorder when added to other therapies.
This is a pilot comparative effectiveness study designed to determine whether trazodone is as effective as quetiapine for treatment of insomnia in veterans with a history of addiction and mental health issues. The study will have two concurrent phases (parts); first an acceptability determination phase, to determine whether and why (or why not) veterans already taking quetiapine are willing to try an alternative to quetiapine for sleep; and second, a randomized trial phase which will test whether staying on quetiapine has any advantage over switching to trazodone. The purpose of the first phase will be a) to document the proportions of patients and physicians who are willing to agree to such a switch, b) to characterize sociodemographic and clinical characteristics of potentially eligible subjects associated with a willingness to switch from quetiapine to trazodone and c) to record the reasons given why patients and their prescribers are (or are not) willing to accept a switch from quetiapine to trazodone. It will also function to provide some educational background to patients and a reminder to providers about the potential severe side-effects of quetiapine, and will thus facilitate clinical informed consent for the clinical trial phase of the study. Completion of the first part of the study will also serve as the screening component for part II. Part II includes, first, obtaining written informed consent from eligible subjects, and then randomly assigning them to continue quetiapine or to be switched to trazodone in open-label "real world" fashion for the duration of 4 weeks, followed by another four weeks of open, non-randomized follow- up. The purpose of the second part of the study is to determine if trazodone is an adequate substitute for quetiapine, primarily in terms of treating insomnia. The investigators hypothesize that trazodone will not be inferior to quetiapine in maintaining good quality of sleep measured by sleep scales (i.e., scores will not significantly worsen once switched). This study is open to Veterans in the VA system only. Eligible subjects must have a history of "dual diagnosis" (i.e., a history of addiction and mental illness).