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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02956226
Other study ID # CBA
Secondary ID
Status Completed
Phase Phase 2
First received
Last updated
Start date January 2017
Est. completion date December 2018

Study information

Verified date December 2018
Source Shaare Zedek Medical Center
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This study aims to assess the safety, tolerability and efficacy of cannabinoids mix [cannabidiol (CBD), Δ9-tetrahydrocannabinol (THC) in a 20:1 ratio, BOL Pharma, Israel] for behavioral problems in children and youth with ASD.


Description:

Disruptive behaviors are very common in children and youth with autism spectrum disorder (ASD). Behavioral problems increase social impairment in children with ASD, make interventions more difficult and place considerable strain on families and caregivers. Current treatment is based on behavioral interventions combined with atypical antipsychotics which often have low tolerability and questionable efficacy.

Cannabis exerts profound effects on human social behavior. Research using animal models of ASD indicate a possible dysregulation of the endocannabinoid system, and stress that it may be a novel target for pharmacological interventions. Anecdotal evidence suggest efficacy of various phytocannabinoids in resistant behavioral problems. However controlled human studies are lacking.

Objective: To assess the safety, tolerability and efficacy of cannabinoids mix [cannabidiol (CBD), Δ9-tetrahydrocannabinol (THC) in a 20:1 ratio, BOL Pharma, Israel] for behavioral problems in children and youth with ASD.

Setting: A double blind randomized placebo-controlled trial with crossover.

Methods: One hundred and fifty participants, ages 5-21 years, with ASD and moderate to severe refractory behavioral problems will be randomized to receive 1 out of 3 treatments for 12-weeks and cross-over to another treatment in a second 12 weeks period. Treatment options are: (1) oral placebo (2) cannabis extract, contains cannabidiol and Δ9-tetrahydrocannabinol in a 20:1 ratio, at a cannabidiol dose of 10 mg/kg/d and (3) pure cannabidiol and Δ9-tetrahydrocannabinol in the same ratio and dose.

Outcomes and measures: Two co-primary endpoints will compare the whole plant extract treatment to the placebo treatment on a within subject design. 1) The change from baseline Home Situations Questionnaire-ASD score after 3 months of treatment (HSQ-ASD; a parent rated assessment of disruptive behavior). 2) The Clinical Global Impression- improvement (CGI-I; a clinician rated assessment of improvement in disruptive behavior following treatment)

Secondary efficacy outcomes include:

- Within subject differences between the placebo condition and the pure cannabinoids condition and between the whole plant extract condition and the pure cannabinoids condition in the change from baseline HSQ-ASD score after 3 months of treatment and in the CGI-I.

- Within subject differences between each pair of the 3 conditions in the Clinical Global Impression- drug effect (CGI-D).

- Within subject differences between each pair of the 3 conditions in the change from baseline after 3 months of treatment in: Social Responsiveness Scale (SRS) parent and teacher rated, Child Behavior Checklist (CBCL) and autism parenting stress index (APSI).

Safety endpoints will include the proportion of patients with adverse events measured by the investigators and the Liverpool Adverse Events Profile (modified).

Exploratory measures are: markers of the endocannabinoid system in the patients' blood and possible correlation to phytocannabinoids bioavailability and treatment response, change from baseline at the end of treatment in BMI and Children's Sleep Habits Questionnaire (CSHQ) score and quality of parent- child interaction during the study (Emotional Availability- EA).

Long term safety, tolerability and efficacy of cannabidiol-rich medical cannabis will be assessed after 12 and 24 months of open treatment, in a subgroup of patients who will apply for medical license to use cannabis after completing the study.


Recruitment information / eligibility

Status Completed
Enrollment 150
Est. completion date December 2018
Est. primary completion date October 2018
Accepts healthy volunteers No
Gender All
Age group 5 Years to 21 Years
Eligibility Inclusion Criteria: (both are needed)

- ASD diagnosis (Diagnostic and Statistical Manual of Mental Disorders [Fifth Edition; DSM-V]

- Moderate or greater behavioral problems as measured by a rating of moderate or higher (=4) on the Clinical Global Impression-Severity (CGI-S)

Exclusion Criteria:

- Planned changes in existing interventions for the duration of the trial or such a change in the last 4 weeks.

- Current treatment with cannabis based therapy or such a treatment in the last 3 months.

- Heart, liver, renal or hematological disorders

- History of psychotic disorder in a first degree relative.

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Cannabinoids - 99% pure cannabinoids mix
99% pure cannabidiol (CBD) and 99% pure ?9-tetrahydrocannabinol (THC) in a 20:1 ratio (B.O.L Pharma, Israel), in a 160/8.0 mg per mL (CBD/THC) olive oil-based solution.
Placebo
Olive oil and flavors solution.
Cannabinoids - whole plant extract
Whole plant extract enriched with cannabidiol (CBD) and ?9-tetrahydrocannabinol (THC) to achieve 20:1 ratio (B.O.L Pharma, Israel), in a 160/8.0 mg per mL (CBD/THC) olive oil-based solution.

Locations

Country Name City State
Israel Shaare Zedek Medical Center Jerusalem

Sponsors (1)

Lead Sponsor Collaborator
Shaare Zedek Medical Center

Country where clinical trial is conducted

Israel, 

Outcome

Type Measure Description Time frame Safety issue
Other Modified Liverpool Adverse Events Profile (LAEP) Tolerability and adverse effects will be assessed using this modified Liverpool Adverse Events Profile (LAEP) that includes all 19 items of the original LAEP and another 15 items to cover all reported significant side effects of CBD and THC in former studies. At onset of each treatment period, at 1 month, 2 months and 3 months (end of treatment period)
Primary Change from baseline Home Situations Questionnaire-Autism Spectrum Disorder (HSQ-ASD) score, at three months. Within subject difference between the placebo condition and the whole plant extract condition. This is a 24-item parent-rated measure of noncompliant behavior in children with ASD At onset of each treatment period, at 1 month, 2 months and 3 months (end of treatment period)
Primary Clinical Global Impression-Improvement scores (CGI-I ) at three months. Within subject difference between the placebo condition and the whole plant extract condition. This is a 7-point scale designed to measure overall improvement from baseline (CGI-I). At 3 months (end of treatment period)
Secondary Clinical Global Impression-Improvement scores (CGI-I ) at three months. Within subject differences between the placebo condition and the pure cannabinoids condition and between the whole plant extract condition and the pure cannabinoids condition. This is a 7-point scale designed to measure overall improvement from baseline At 3 months (end of treatment period)
Secondary Change in Social Responsiveness Scale scores-2 (SRS-2, parent and teacher rated) at three months This is a 65 item, caregiver (pSRS) or teacher (tSRS) questionnaire, used to determine the severity of social deficit exhibited by participants with ASD. The SRS contains five subscales: Social Awareness, Social Cognition, Social Communication, Social Motivation, and Autistic Mannerisms, which respectively measure the ability to recognize social cues, the ability to interpret social cues, the ability to use expressive verbal and nonverbal language skills, the ability to engage in social-interpersonal behaviors, and the tendency to display stereotypical behaviors and restricted interests characteristic of autism At onset of each treatment period and at 3 months (end of treatment period)
Secondary Change in Autism Parenting Stress Index (APSI) score, at three months This is a 13-item parent rated measure designed to assess the effect of interventions to control disruptive behavior in children with ASD on parenting stress. At onset of each treatment period, at 1 month, 2 months and 3 months (end of treatment period)
Secondary Change from baseline Home Situations Questionnaire-Autism Spectrum Disorder (HSQ-ASD) score, at three months. This is a 24-item parent-rated measure of noncompliant behavior in children with ASD. Within subject differences between the placebo condition and the pure cannabinoids condition and between the whole plant extract condition and the pure cannabinoids condition. At onset of each treatment period, at 1 month, 2 months and 3 months (end of treatment period)
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