Active clinical trials for "Autism Spectrum Disorder"

The primary aims are to identify important gut microbiota signatures for youth with ASD, to identify dysbiosis features for different levels of ASD features and clinical courses, to search the possibility to intervene the disease course if we can tease out the dysbiosis responsible for the flare-up and improvement of the symptoms of the disease. The secondary aims are to identify the clinical and neuropsychological measures that are associated with direct and indirect regulation or interactions from gut-brain axis signaling, and based our preliminary results on reducing the measures for future large-scale microbiome study in ASD.

To date, it is well documented that the gut microbiota (GM) influences numerous physiological processes in the healthy "host". The alteration of the composition and function of the intestinal microbiota, commonly referred to as "dysbiosis", is associated with many pathological conditions. The high co-morbidity between inflammatory bowel diseases and psychiatric symptoms such as anxiety and stress and the frequent presence of gastrointestinal dysfunctions in autistic patients have highlighted a possible implication of GM in psychiatric disorders. The ability of GM to communicate with the central nervous system and the possible influence on behavior led to the discovery of the existence of a microbiota-gut-brain axis. Clinical and experimental data suggest a possible role of modifications in the composition and function of the intestinal microbiota (impaired production of short-chain fatty acids, SCFAs) in major psychiatric disorders such as autism spectrum disorders (ASD). ASD is a severe neurological condition characterized by severe stereotypical behaviors and deficits in linguistic and social interaction. The prevalence of ASD in children is continuously increasing in Western countries. The pathogenesis of ASD is still poorly defined. The clinical manifestations of ASD are the result of complex interactions between genetic, epigenetic, environmental and microbiological factors. The improvement in gastrointestinal symptoms of autistic patients after short-term oral treatment with antibiotics and probiotics clearly indicated a role of the metabolites of MI in ASD. In particular, an alteration in the phyla of Bacteroidetes and Firmicutes in fecal samples from autistic children has been described with conflicting results. Williams and colleagues (2011) evaluated a significant increase in the Firmicutes / Bacteroidetes ratio in intestinal biopsies of autistic children with gastrointestinal disorders. It has also been shown in animal models of ASD that dysbiosis is positively associated with an increase in butyrate levels and inversely associated with the "score" of the severity of ASD symptoms. Alterations in nutritional status, eating habits and adverse reactions to food appear to be more frequent in children with ASD. Several studies support the hypothesis that children with ASD have a greater refusal of food, requiring specific food presentations or eating a reduced variety of foods compared to children without ASD. These conditions are associated with dysbiosis. Preliminary data suggest that particular elimination diets and / or modifications of the intestinal microbiota can determine a positive effect on the symptoms of ASD. A better knowledge of the composition and functions of the intestinal microbiota also in relation to eating habits and the presence of adverse reactions to food in the child with ASD could facilitate new effective strategies for the prevention and treatment of these conditions.

Autism Spectrum Disorder (ASD) is a lifelong, neurodevelopmental disorder effecting one in fifty-nine children. Each individual with ASD is unique. Children with ASD may have trouble making friends, keeping friends, communicating their needs, engaging in leisure activities, learning to read and do math, and many other challenges. The children may engage in repetitive behaviors such as hitting themselves or flapping their hands, and may be over sensitive to particular sounds or lights which can make certain places, such as a store, very uncomfortable. Also, children with ASD may have challenging behaviors such as hitting others and excessive tantrums that can seem uncontrollable. 25 to 40 hours a week of intensive applied behavior analysis is the evidence-based treatment for children with ASD. Many children with ASD in rural areas and certain states are unable to access evidence-based treatment because of insurance barriers and lack of providers. The Competent Learner Model uses strategies from applied behavior analysis to target core skills that increase successful participation in life activities. Its program is applicable across all ages and developmental levels, and it has an online course of study which has been used to train professionals and lay people alike including parents. The purpose of this study was to assess the feasibility of training parents in applied behavior analysis using the Competent Learner Model with children with ASD who do not have access to treatment. The program consisted of a hybrid of group sessions for caregivers, coaching sessions for the caregiver-child dyads, and online units for caregivers. This project assessed participation in and satisfaction with the program as well as changes in parenting stress. Feedback from caregivers will be used to create a more satisfactory method of increasing accessing to families of children with Autism Spectrum Disorder in rural areas.

The goal of the study is to assess a new autism evaluation model that would include the addition of a Level-2 autism screener, the Rapid Interactive Screening Test for Autism in Toddlers (RITA-T), to the developmental screening already done by the child's pediatrician. The study hypotheses: The PEARS intervention will show high feasibility to primary care physicians (PCPs) and patient families. The PEARS intervention will lead to increased parent activation around autism diagnosis.

Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder with characteristic deficits in social functioning and presence of stereotypic behavior. Several research studies have examined potential deficits in cognitive skills, such as working memory, in this condition. A meta-analysis of the studies aimed at evaluating working memory (WM) in autistic population suggested deficits in visual and verbal aspects of WM. Working memory training has also been studied in other neurodevelopmental disorders such as Attention Deficit Hyperactivity Disorder (ADHD). The study includes development of mobile-based games for training WM and other cognitive skills in patients and the evaluation of such training in reducing symptoms of ASD. These games may also be useful for other neurodevelopmental disorders.

By comparing them to a healthy control group, this study aims to investigate the relationship between the participation of children with autism spectrum disorder (ASD) in home, school, and community environments and their parents' fatigue, depression, and quality of life, as well as the child's quality of life. There is no study that investigators are aware of that looks into the relationship between the fatigue and quality of life of parents of children with ASD and the quality of life and participation of children with ASD. This study hypothesizes that parents of children with ASD experience more fatigue and have a lower health-related quality of life than parents of healthy children.

This is a multicenter longitudinal study that aims to identify, develop and validate a set of measures that can be used as stratification biomarkers and/or sensitive and reliable objective measures of social impairment in autism spectrum disorders (ASD) that could serve as markers of long term clinical outcome. The main study will include 275 individuals: 200 ASD subjects between 6-11 years old, and 75 TD subjects roughly matched by age and sex to the ASD group.

The overall goal of this research is to use neurophysiological measures to profile strengths and deficits for Attention Deficit Hyperactivity Disorder co-morbidity in Autism Spectrum Disorder to clarify diagnosis and to predict treatment response.

Introduction: Autism spectrum disorder is characterized by deficits in three functional domains: language and communication, social reciprocity, and the presence of restricted interests/repetitive behaviors. There's also deficits in social cognition. When having a face-to-face conversation, a listener not only hears what a speaker is saying, but also sees the articulatory gestures that accompany those sounds. Speech signals needs then a multisensory processing. Impairments in multisensory perceptual binding may be particularly relevant in ASD, given that hallmark features of the disorder include difficulties in speech, communication, and social interactions. Objectives: The investigator suggest that atypical multisensory processing in ASD may have an impact on speech perception and social processing. Aims: Methods: This pilot study measures free recall scores in 3 lists of words presentation after 30 minutes. In the first condition (CI) words are only listening. In the second condition (CII) words are associated with a picture of a mans face. In the third condition (CIII) words are associated with a video of a man speaking. Three lists are homogeneous form words characteristics (lexical frequency, emotional valence norm, imageability). Participants were 7- to 13-year-olds typically developing children (TD) (N = 19) and ASD children (N = 19). The investigator would create some new tools for exploring the treatment of a social information. These tools should be the closest of a ecological social interaction.

Autism Spectrum Disorder (ASD) is the most prevalent of the developmental disorders and their incidence is rising. However, the variability in the behavioral symptoms is large. In part for these reasons, the ASD clinical diagnosis is challenging and often is not made until 3-5 years of age. Thus, there remains an unmet need for a valid and reliable marker which would facilitate ASD diagnosis early in life, enable efficient study of ASD risk factors, and eventually serve as a useful marker to inform the development of effective therapies and assess treatment response in future clinical trials. The specific brain based marker that investigators are currently evaluating is brain plasticity (the changes that occur in your brain through experience). Investigators measure brain plasticity using noninvasive brain stimulation including transcranial magnetic stimulation (TMS) combined with brain imaging, EEG, and behavioral outcome measures. Their work to date demonstrates the potential utility of these techniques in higher-functioning adolescents and adults with ASD, and pilot data support the feasibility and safety of applying the same measures to children and lower functioning individuals. In this study, investigators will evaluate the validity of this marker in low- and high-functioning adults with ASD, in low- and high-functioning children with ASD, and assess the reliability of this marker.