View clinical trials related to Asperger's Disorder.
Filter by:The study will evaluate the effectiveness of atomoxetine (Strattera) with and without Parent Management Training (PMT) in children with Autism, Asperger's Disorder, or Pervasive Developmental Disorder Not Otherwise Specified (PDDNOS) who have symptoms of Attention Deficit Hyperactivity Disorder (ADHD). This is a double-blind placebo, parallel study where the atomoxetine will have a dose titration over a 6 week period. All children will be seen weekly during this titration period, with additional visits at Week 8 and Week 10. Families assigned to the PMT arm will have an additional weekly meeting with a clinician for a total of 9 PMT visits. PMT involves teaching parents to implement behavioral interventions with their children. Subjects who are clinical responders (ADHD Responders and Compliance Responders) from the 10 week study period will be followed every 4 weeks in a 24-week extension study. Subjects who are clinical nonresponders will continue in PMT if they received PMT during the double-blind phase, and they will receive an open trial of atomoxetine if they were on placebo during the double-blind phase. All subjects (responders and nonresponders) will be invited to participate in follow-up assessments every 4 weeks for 24 weeks after the completion of the double-blind phase.
Theory of mind (ToM) refers to the ability to infer others mental states. It includes a recognition that other individuals experience thoughts, feelings, intentions, and desires that may be different to our own. ToM is often impaired among individuals with an autism spectrum disorder (such as autism and Asperger's disorder), and may underlie aspects of social dysfunction in this population. Indeed, it has been suggested that impaired ToM is the core deficit of autism and Asperger's disorder. Imaging studies suggest that the bilateral medial prefrontal cortex, the most important brain region in ToM processing, is underactive in autism. The current study examines whether repetitive transcranial magnetic stimulation (rTMS) to the bilateral medial prefrontal cortex can modulate ToM ability among healthy adults, and improve ToM ability among adults with autism or Asperger's disorder. With the prevalence of autism increasing, there is a clear need to develop appropriate therapeutic interventions to improve social functioning. This study involves a double-blind study using high-frequency rTMS in an attempt to improve ToM among adults with either autism or Asperger's disorder. Theory of mind will be measured using behavioural tasks that require the participant to infer what someone is thinking or feeling by observing their behaviour. These tasks will administered both before and after rTMS to determine whether any change in theory of mind has occurred. Thirty adults with either autism (n = 15) or Asperger's disorder (n = 15) will initially undergo functional and structural MRI to determine the site on the scalp that lies over the medial prefrontal cortex (to which rTMS will be administered). They will then attend our lab each consecutive weekday for a two-week period, during which they will 15 minutes high-frequency (5 Hz) rTMS (either active or sham) to the medial prefrontal cortex. ToM and clinical measures will be collected before the first session, soon after the last session, and one month after the last session. Based on prior imaging data, it is expected that high-frequency rTMS (compared with sham rTMS) to the medial prefrontal cortex will improve ToM ability and reduce social dysfunction among adults with autism or Asperger's disorder. Should these hypotheses be supported, it will indicate the suitability of rTMS as a neurobiological intervention designed to improve ToM and social function among individuals with autism and related disorders.
This study will examine whether DMSA, an oral chelating agent that removes mercury and other metals from the body, is beneficial for children with autism. DMSA is commonly used to treat autism, although it has never been tested in a controlled study and there is no proof that it helps children with the disorder. Support for its use is based on single-case reports of benefits of chelation with DMSA. This study will help determine whether or not DMSA is useful for treating autism. Children between 4 and 10 years of age with autism spectrum disorder who weigh at least 33 pounds, who have detectable, but not toxic, levels of mercury or lead in the blood, and who have not previously received chelation therapy may be eligible for this study. Participants complete a medical history, behavioral and psychological assessment and physical examination. Blood, hair, urine and stool samples are collected for testing. Because DMSA can remove minerals the body needs, such as zinc and iron, as well as the toxic lead and mercury, participants take a daily multivitamin supplement starting 1 month before beginning chelation therapy and continuing for the duration of treatment. After 1 month of the supplementation regimen, the children are assigned to receive DMSA or placebo for 12 weeks, divided into six 2-week cycles. They take the assigned drug 3 times a day on days 1, 2 and 3 of each cycle and continue the multivitamin every day. The children are seen in the clinic immediately before and after the first, third and sixth cycles. At each checkup, the parent or guardian answers a set of questions about the child's autism symptoms, physical health and medication side effects. Blood, urine and stool samples are collected for laboratory testing.
This study will be an open-label, 12-week trial of risperidone in subjects with Asperger's Disorder, according to Diagnostic and Statistical Manual of Mental Disorders IV (DSM-IV) Criteria. The study has two arms, one involving pre- and post-treatment MRS studies, and one without MRS. The MRS arm will study 18-20 subjects ages 6 and above, with a target of 14 completing patients. For both arms, we plan to a enroll at total of 30 patients to achieve completion for 24 patients. The non-MRS arm of the study will include subjects 6-18 years of age, the bulk of which have completed the study as of the writing of this updated revision. Our hypotheses are that treatment of Asperger's patients with a low dose of risperidone will: 1. decrease ratios of N-acetylaspartate (NAA), creatine, phosphocreatine (Cr + PCr), and choline in the prefrontal lobe, and 2. decrease the severity of negative symptoms and overall improve social behavior, and 3. that the two will be correlated. Specific Aims The primary objectives of this trial are to: - Further assess and investigate the utility of risperidone in the treatment Asperger's disorder. - Assess the efficacy of risperidone in normalizing increased frontal lobe metabolites. - Assess the efficacy of risperidone in normalizing symptoms in Asperger's disorder patients using standardized rating scales to assess the impact on negative symptoms and on social interaction. - Determine whether risperidone's effect on clinical improvement of Asperger's disorder, i.e., negative symptoms, is correlated with normalization of frontal lobe metabolites - Accrue safety and tolerability data on risperidone for this population of patients. This information could potentially be used to provide pilot data for a double blind trial
The aim of this study is to evaluate the efficacy, safety and tolerability of aripiprazole monotherapy in the treatment of children and adolescents suffering from ASD over a 12-week period. We hypothesize that aripiprazole may be helpful in reducing ASD-associated symptoms of anxiety and aggression, resulting in significant improvements in global outcome.
The purpose of this study is to develop a better tolerated and more effective pharmacologic treatment for individuals with Asperger's Disorder and Pervasive Developmental Disorder. This is an open-label investigation of aripiprazole in the management of the maladaptive behaviors of autistic disorder. We hypothesize that aripiprazole will be effective for reducing aggression and repetitive behavior.