Autism Spectrum Disorder
Conditions
Brief summary
The investigators are going to carry out a randomized double-blind placebo-controlled trial to study the efficiency and mechanism of bumetanide on the treatment of children with Autism Spectrum Disorder.
Detailed description
In consideration of the increasing number of autistic children and poor intervention effect in China, it is an urgent to find some effective medicine. Some studies have reported bumetanide, a classic diuretic, could improve autistic behaviors in both animal model and humans; while the efficiency of bumetanide on Chinese autistic chilren is unkonwn and the underlying mechanisms remain unfolding. The investigators aim at investigating whether bumetanide would improve the clinical symptoms in Chinese children with autism within a safe dosage and further study the physiological mechanism beneath.The investigators will regularly assess the participants' autism-related symptoms during medication, as well as the adverse effects of each patient. The investigators will carry out genome-wide association analysis (GWAS) from blood sample, related metabolites in nervous system and compare the concentration of the neurotransmitter in autistic brain before and after 3 months' treatmeat,and also will collect the EEG signal in autistic chilldren when the participants performing certain tasks before and after 3 months' treatment.
Interventions
DRUGBumetanide
bumetanide tablets, oral intake, 0.5mg, twice daily, respectively at 8 am and 4 pm
DRUGPlacebo
placebo tablets, oral intake, 0.5mg, twice daily, respectively at 8 am and 4 pm
Sponsors
Shanghai Jiao Tong University School of Medicine
Xinhua Hospital, Shanghai Jiao Tong University School of Medicine
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
3 Years to 6 Years
Healthy volunteers
No
Inclusion criteria
The patients, aged from 3 to 6 years old, were given the diagnosis of ASD according to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-V) , by a team of autism experts; Scores for Children Autism Rating Scale (CARS) were more than 30; Signed Informed Consents were provided by parents.
Exclusion criteria
Liver and kidney dysfunction; With a history of allergy to sulfa drugs; abnormal ECG; chromosomal abnormality; suffering from nervous system diseases (such as epilepsy, schizophrenia, and so on); using the melatonin treatment for sleep disorders or withdrawal less than three weeks.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Childhood Autism Rating Scale(CARS) | Day 0 and Day 90 | CARS is a behaviour-rating scale used to assess the presence and severity of the symptoms of autism spectrum disorder |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Chinese Communicative Development Inventory | Day 0 and Day 90 | The Chinese Communicative Development Inventories (CCDI) is a questionnaire that is used to direct measures of the participants' language.Change between day 0 and day 90 of the result of the Chinese Communicative Development Inventory |
| Social Responsiveness Scale (SRS) | Day 0 and Day 90 | SRS is a questionnaire used to assess the presence and severity of social impairment. |
| Autism Diagnostic Observation Schedule (ADOS) | Day 0 and Day 90 | The ADOS is a structured play session conducted by clinicians, with the total score combines the Social and Communication domain items. |
| Short Sensory Profile Report | Day 0 and Day 90 | The Sensory Profile is a measure of children's responses to sensory events in daily life. The caregiver completes the Sensory Profile by assessing the frequency of the child's responses to certain sensory processing, modulation, and behavioral/emotional events as described in the 125 items. |
| Symbolic Play Test | Day 0 and Day 90 | Symbolic Play Test is a nonverbal measure of symbolic functioning in participants aged 12-36 months. The test does not require any expressive speech, and is therefore appropriate for use with all participants with ASD. Participants are sequentially presented with four sets of toys, and their spontaneous manipulation of the objects is observed and recorded on a standardized checklist. |
| Clinical Global Impressions Scale (CGI) | Day 0 and Day 90 | CGI is a scale used to assess the severity of the illness and the global improvement of the patient under intervention |
Other
| Measure | Time frame | Description |
|---|---|---|
| Multichannel EEG Signals | Day 0 and Day 90 | Change in brain Multichannel EEG signals |
| Genome wide association study from blood sample | Day 90 | Selection and study of susceptible genes |
| Analysis of metabolites from blood sample | Day 0 and Day 90 | Metabonomics research |
| MRI Structure Imaging and Spectrum imaging, data analysis | Day 0 and Day 90 | Change of structure of the brain and the GABA-neurotransmitters in specific brain regions of the brain. |
Countries
China
Outcome results
None listed