Cannabis for Chronic Headaches in Adolescents: the CAN-CHA Trial
CAN-CHA
A Multi-Centre, Tolerability Study of a Cannabidiol-enriched Cannabis Herbal Extract for Chronic Headaches in Adolescents: the CAN-CHA Trial
1 other identifier
interventional
20
1 country
3
Brief Summary
Chronic headaches are a major cause of disability among adolescents. Cannabis products have supported the management of headaches in adults and may play a role in pediatric chronic pain. We propose a multisite, open-label, tolerability study conducted across three centers in Canada of Cannabidiol-enriched Cannabis Herbal Extract in adolescents (ages 14 to 17 years old) with chronic headaches. The study includes a one month baseline assessment, four months of escalating treatment doses and a weaning period. Our primary outcome is tolerability defined as the number and severity of reported adverse events.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_2
Started Oct 2024
Shorter than P25 for phase_2
3 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 29, 2022
CompletedFirst Posted
Study publicly available on registry
April 20, 2022
CompletedStudy Start
First participant enrolled
October 11, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
December 31, 2025
CompletedMay 29, 2025
May 1, 2025
1.2 years
March 29, 2022
May 22, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Cannabis-related adverse events
The frequency of adverse events will be measured and characterized using standard CTCAE coding
Reported daily through study completion, an average of 6 months
Secondary Outcomes (9)
The frequency and duration of headache compared to baseline
Reported daily through study completion, an average of 6 months
Pain intensity compared to baseline
Reported daily through study completion, an average of 6 months
Pain impact on participants quality of life compared to baseline
Reported monthly for 6 months
Number of hours of sleep per night compared to baseline
Reported daily through study completion, an average of 6 months
Change in sleep quality
Reported monthly for 6 months
- +4 more secondary outcomes
Study Arms (1)
Cannabidiol-enriched Cannabis Herbal Extract
EXPERIMENTALCBD50 plus
Interventions
CBD50 plus is a medical cannabis oil with flavouring agent produced under Good Manufacturing Practice by MediPharm Labs and purchased for this study. Each ml of oil contains 2 mg/ml of delta-9-THC and 50 mg/ml of CBD. Participants will receive escalating doses from 0.2-0.4 mg/kg/day of CBD to 0.8-1 mg/kg of CBD per day for four months, with dose increases monthly in 0.2mg/kg increments. Participants will following a weekly weaning protocol.
Eligibility Criteria
You may qualify if:
- To be eligible to participate in this study, an individual must meet all of the following criteria:
- Adolescents aged between 14-17 years of age at the time of screening.
- Diagnosed with Chronic Migraine according to ICHD-3: headache (migraine-like or tension-type like) occurring on 15 or more days per month for more than 3 months which on at least 8 days per month have features of migraine headache. \[121\]
- Failed at least two treatment options on the grounds of safety (tolerability) and/or efficacy, including but not limited to antidepressant (tricyclic antidepressant or selective norepinephrine reuptake inhibitor), magnesium, gabapentinoids topiramate and/or non-pharmacological therapies.
- Females who have reached menarche should have a negative pregnancy test during screening.
- Must be willing to engage with psychology and physiotherapy throughout the trial as appropriate.
You may not qualify if:
- As per the investigator judgement, the participant is not an ideal candidate due to a personal issue or medical condition that is likely to impede in the successful completion of the study
- Participants with a history of post-concussion headache or new daily persistent headache
- Participants with a diagnosis of medication overuse headache
- Participants with cardiac, renal or hepatic disease (assessed by the site investigator)
- Participants with complex regional pain syndrome-II
- Participants with abnormal ECG findings at baseline (as determined by the investigator)
- Participants who are on the following medications: opioids, antipsychotics, antimanic, barbiturates, benzodiazepines, muscle relaxants, sedatives, or tramadol.
- Participants with developmental delay or impairments including autism, cerebral palsy or intellectual disability.
- Participants with a personal or family history of schizophrenia or psychotic disorders
- Participants who are pregnant or breast/chest-feeding or plans to become pregnant within the study period or within three months of interventional product discontinuation
- Participants who cannot commit to using contraception and refraining from recreational cannabis use and driving throughout the study period
- Participants with known allergy to cannabinoids and/or palm/coconut oil
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of Manitobalead
- SickKids Foundationcollaborator
Study Sites (3)
University of British Columbia
Vancouver, British Columbia, V6T1Z4, Canada
Dalhousie University-
Halifax, Nova Scotia, B3K 6R8, Canada
North Toronto Neurology
Toronto, Ontario, Canada
Related Publications (1)
Chhabra M, Lewis EC, Balshaw R, Stewart B, Zaslawski Z, Lowthian T, Alidina Z, Chesick-Gordis M, Xie W, Drogemoller BI, Wright GEB, Birnie KA, Boerner KE, Tsang VWL, Irwin SL, Pohl D, Weil AG, Sell E, Penz E, Robson-MacKay A, Mbabaali S, Blackman S, Gordon S, Alcorn J, Huntsman RJ, Oberlander TF, Finley GA, Kelly LE. A multi-centre, tolerability study of a cannabidiol-enriched Cannabis Herbal Extract for chronic headaches in adolescents: The CAN-CHA protocol. PLoS One. 2024 Sep 20;19(9):e0290185. doi: 10.1371/journal.pone.0290185. eCollection 2024.
PMID: 39302982DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Lauren E Kelly, PhD
University of Manitoba
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Lauren E Kelly PhD, MSc, BMedSci, CCRP, Assistant Professor, Dept. of Pediatrics & Child Health, University of Manitoba Scientific Director, Canadian Childhood Cannabinoid Clinical Trials (www.C4Trials.org)
Study Record Dates
First Submitted
March 29, 2022
First Posted
April 20, 2022
Study Start
October 11, 2024
Primary Completion
December 31, 2025
Study Completion
December 31, 2025
Last Updated
May 29, 2025
Record last verified: 2025-05
Data Sharing
- IPD Sharing
- Will not share