Children with autism spectrum disorder (ASD) commonly exhibit comorbid symptoms such as aggression, hyperactivity and anxiety. Data on the effects of cannabidiol rich cannabis extract use for ASD is promising but still limited. The aim of this study is to investigate if oral cannabinoids treatment to children and young adults with ASD affect the comorbidities of autism, including sleep and eating problems, anxiety and violence. The main objectives of the study are: 1) to characterize the effect of treatment with cannabis oil on comorbid symptoms of ASD; 2) to compare safety and efficacy of different cannabis products with identical CBD:THC ratio; 3) to investigate the effect of treatment on cognitive and adaptive behavior; and 4) to measure THC and CBD and metabolites levels in the blood of the patients. In this study, patients diagnosed with ASD will be treated with cannabidiol-rich cannabis oil (CBD:THC ratio of 20:1). The researchers will collect parental reports on ASD comorbid symptoms before and bi-weekly during 6 months of the study period. Blood tests will be performed before and after three months of treatment. Blood tests include blood count, blood chemistry, hormones profile, phyto- and endo- cannabinoids and metabolites. Cognitive evaluation will be done before and after six months of treatment. Electroencephalogram (EEG) to exclude epilepsy will be performed before and after six months of treatment.
Participants will be screened by the PI, a specialist neurologist. For those passing screening, license for Cannabis will be obtained at MOH. Participants will pass tests such as ADOS (communication skills) and Wechsler (IQ), parents will fill questionnaires. Treatment will start in a titration mode till improvement in some parameters is seen or till treatment failure decision is made. Participants will be called for a check-up by mid-time (after 3 months) and their parents will fill questionnaires. Participants will be called for a last check-up after 6 months from treatment beginning and pass again ADOS and Wechsler tests. Parents will fill questionnaires. Secondary purposes of the trial: To detect side-effects To assess treatment failure To assess treatment effect on sleep, motor restlessness and behavior. To examine treatment effect on hormonal profile
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
128
Cannabis oil 20:1 CBD:THC ratio
Assaf Harofeh Medical Center
Ẕerifin, Israel
Cannabinoids levels change
To compare CBD, THC their and metabolites blood levels before and after intervention
Time frame: 3 months
Changes in attention span
To characterize the effect of medical cannabis treatment on the attention span using Conners teacher questionnaires. Significant change is defined as a change of 10% in questionnaire score between baseline and 6 months.
Time frame: 6 months
Changes in cognitive level
To examine the effect of cannabis treatment on cognitive level using part of Wechsler test. Significant change is defined as a change of 10% in questionnaire score between baseline and 6 months.
Time frame: 6 months
Comparison of efficacy between two different cannabis oil products
To compare efficacy of medical cannabis products with the same CBD: THC ratio in terms of communication skills using ADOS test. Significant change is defined as a change of 10% in raw questionnaire score between baseline and 6 months.
Time frame: 6 months
Changes in adaptive behavior
To examine the effect of cannabis treatment on adaptive behavior as per ADOS test. Significant change is defined as a change of 10% in raw questionnaire score between baseline and 6 months.
Time frame: 6 months
Changes in violent behavior
To examine the effect of cannabis treatment on violent behavior as per specific trial-designed questionnaire. Significant change is defined as a change of 10% in questionnaire score between baseline and 6 months.
Time frame: 6 months
Side effects
To identify side effects as per parents report in a specific trial-designed questionnaire. Significant change is defined as a change of 10% in new side effects as examined by questionnaire score between baseline and 6 months.
Time frame: 6 months
Therapeutic failure
To identify therapeutic failure reasons as per Professional expert opinion. Significant reason is defined as reason that will effect at least 20% of therapeutic failure cases.
Time frame: 6 months
Changes in sleep problems
To examine whether high concentration CBD cannabis oil is effective in improving sleep as per Sleep questionnaire. Significant change is defined as a change of 10% in raw questionnaire score between baseline and 6 months.
Time frame: 6 months
Changes in eating problems
To examine whether high concentration CBD cannabis oil is effective in improving eating as per eating questionnaire. Significant change is defined as a change of 10% in raw questionnaire score between baseline and 6 months.
Time frame: 6 months
Changes in hormonal profile
To compare hormonal profile measured as per by Hospital Lab SOP before and during treatment. measured hormones are: TSH, FT4, 17OH-testosterone, LH, prolactine. Significant change is defined as a clinically significant diversion from lab defined normal ranges, according to age and sex, between baseline and 3 months.
Time frame: 3 months
Changes in biochemical parameters
To compare liver enzymes measured as per by Hospital Lab SOP before and during treatment. Measured enzymes are: ALT, AST, GGT, Bilirubin. Significant change is defined as a clinicaly significant diversion (more than twice the Upper Limit of Noraml for each enzyme) from lab defined normal ranges, between baseline and 3 months.
Time frame: 3 months
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