NCT05184478

Is Medicinal Cannabis an Effective Treatment for Tourette Syndrome in Adolescents? a Pilot Study

A Pilot Randomized Placebo-controlled Crossover Trial of Medicinal Cannabis (MC) in Adolescents with Tourette Syndrome (TS)

• Status: Completed
• Phase: Phase 1 / Phase 2
• Study type: Interventional
• Enrollment: 10 (actual)
• Sponsor: Murdoch Childrens Research Institute · Academic / Other
• Sex: All
• Age: 12 Years – 18 Years
• Healthy volunteers: Not accepted

Summary

This is a single site, pilot double-blind, randomized, placebo-controlled, cross-over study of 10 participants comparing medicinal cannabis (THC:CBD 10:15 oil) with placebo in reducing tics in adolescents aged 12 - 18 years with severe Tourette Syndrome (TS). The primary objective of this pilot study is to evaluate all elements of the study design (recruitment strategy, study duration, study procedures, study medication tolerance and outcome measures) to assess if they are acceptable and feasible for the conduct of a full-scale randomized controlled trial of THC:CBD 10:15 oil to reduce tic severity in adolescents with TS. The secondary objective of this study is to collect preliminary data on the safety of oral THC:CBD 10:15 oil in adolescents aged 12 to 18 years with TS. As an exploratory aim data from clinician- and parent-rated measures will be compared across the phases to explore for a signal of efficacy on primary (tic reduction) and secondary (premonitory urges, obsessive compulsive behaviors, Attention Deficit Hyperactivity Disorder \[ADHD\] symptoms) outcome measures.

Conditions

• Tourette Syndrome in Adolescence

Interventions

Type	Name	Description
DRUG	Medicinal cannabis (MC): THC 10mg/mL : CBD 15mg/mL, manufactured by Cann Group Ltd.	Each 1mL contains 10mg tetrahydrocannabinol (THC),15 mg cannabidiol (CBD), and 0.004mL peppermint oil in medium chain triglyceride (MCT) oil. All participants will start at 0.1 mL per day, and will gradually increase in 0.1mL increments until day 21 when a dose of 0.5mL (participants weighing \<50kg) or 1mL (participants weighing ≥50kg) is reached. At day 29, an assessment of treatment response will be conducted. Participants who meet criteria for a treatment response will remain on the same dose for the remainder of the treatment period. Participants who do not meet criteria for a treatment response will gradually increase the dose in 0.1mL increments until day 49 when a daily dose of 1mL (participants weighing \<50kg) or 2mL (participants ≥50kg) is reached.
DRUG	Placebo	The placebo contains MCT oil and peppermint flavoring solution, which is indistinguishable from the active medication in appearance, smell and taste. The dose will be matched for volume to the medicinal cannabis, and will follow the same dosing schedule as the medicinal cannabis treatment phase.

Timeline

• Start date: 2022-05-16
• Primary completion: 2023-12-05
• Completion: 2024-01-04
• First posted: 2022-01-11
• Last updated: 2024-11-27

Locations

1 site across 1 country: Australia