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Clinical Trial Summary

This single-site study is a pilot, three-armed, double-blinded, placebo-controlled randomized controlled trial (RCT) that will determine the feasibility of a definitive RCT investigating the use of cannabis oil as a treatment for insomnia in individuals with MDD. The study will also determine whether standard THC with higher CBD vs lower CBD has a differential impact on insomnia. The study will also analyze other important objective parameters of sleep including total sleep time and sleep efficiency from actigraphy data. Polysomnography data will also be analyzed. In addition, standardized, validated instruments will be used to collect data on severity of depressive symptoms, cognitive functioning biological rhythm disruption, daytime sleepiness, health-related quality of life (HRQoL), healthcare resource utilization, work productivity and activity impairment, as well as other side effects, in order to better understand the potential impact of the use of cannabis oil on these important health outcomes.


Clinical Trial Description

The study will be a three-arm, randomized, double-blind, placebo-controlled trial. The study population will include 60 males and females, ages 19 and older, who report chronic problems with insomnia at least three times per week for at least three months and have a diagnosis of co-morbid MDD. Eligible participants will complete a urine screen for drugs of abuse including opioids, cannabis, benzodiazepines and amphetamines before treatment randomization. Participants with a positive screen for any of these drugs of abuse will be excluded from the study. If the drug screen is negative, the principal investigator will assess patient health history and perform a physical examination. All study participants must be able to fully understand the study procedures and must sign a research ethics board (REB)-approved informed consent before study entry. A neuropsychological battery will be used to assess cognitive function in the domains of attention, verbal memory, psychomotor functioning, and executive functioning at baseline and at the end of the 4-week treatment in order to examine possible cognitive benefits or side effects from the treatment. These cognitive domains were chosen because these domains are known to be negatively affected by chronic insomnia and by cannabis use. Patients will also complete a series of clinician-rated and self-reported questionnaires. During the 4-week treatment period, participants will be instructed to start treatment with a single, dose of oil at bedtime. Each dose will have either 50 mg/ml CBD and 2 mg/ml THC (High CBD arm; MLP-001) or 10 mg/ml CBD and 2 mg/ml THC (Low CBD arm; MLP-002). Non-responding study participants will add 1 additional dose to their respective treatment after 2 weeks if a higher dosage is needed based on an Insomnia Severity Index (ISI) reduction of >8 points and tolerability (side effects). Responding participants will continue with 1 dose of their treatment after 2 weeks. This dose range is based on previous studies showing that the effective dosage of THC to improve sleep ranged, on average, between 5 and 15 mg daily. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05041647
Study type Interventional
Source St. Joseph's Healthcare Hamilton
Contact Abbey Schlatman
Phone (905) 522-1155
Email aschlatm@stjosham.on.ca
Status Recruiting
Phase Phase 2
Start date August 28, 2023
Completion date June 30, 2024

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