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Efficacy of Inhaled Cannabis for Acute Migraine Treatment

Efficacy of Inhaled Cannabis Versus Placebo for the Acute Treatment of Migraine: a Randomized, Double-blind, Placebo-controlled, Crossover Trial

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04360044
Enrollment
92
Registered
2020-04-24
Start date
2020-11-20
Completion date
2023-02-23
Last updated
2023-02-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cannabis, CBD, Migraine, THC

Keywords

Migraine, Cannabis, THC, CBD

Brief summary

This crossover study will evaluate 3 different treatments of vaporized cannabis (THC, THC/CBD mix, and CBD) and vaporized placebo cannabis for the acute treatment of migraine.

Detailed description

In this double-blind, randomized, crossover trial, subjects will treat 4 separate migraine attacks with 4 different treatments. Inhaled cannabis will be administered using a portable vaporization system (Mighty Medic; Storz & Bickel) based on a validated Storz & Bickel system and using a standardized inhalation approach. Subjects will self-administer inhaled cannabis as early as possible in the course of a migraine (see Procedure), taking 4 puffs of 1) THC, 2) THC/CBD mix, 3) CBD, or 4) placebo. Patients will treat each of the 4 distinct migraine attacks with a different cannabis sample. Outcomes measured will include pain freedom and pain relief as well as presence or absence of photophobia, phonophobia, and nausea at 1 hour, 2 hours (primary outcome), 24 hours, and 48 hours.

Interventions

4 puffs of vaporized flower containing THC \ 5%

DRUGCBD ~12%

4 puffs of vaporized flower containing CBD \ 12%

DRUGTHC ~5% and CBD ~12%

4 puffs of vaporized flower containing THC \ 5% and CBD \ 12%

4 puffs of vaporized flower from which the THC and CBD have been extracted

Sponsors

Migraine Research Foundation
CollaboratorOTHER
University of California, San Diego
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Masking description

Each participant will have an identification number and randomization of drug sequence allocation will be performed a priori using a random number generator by the study pharmacist. The 4 treatments will be identically encapsulated by the study pharmacist using Storz & Bickel filling set. The study pharmacist will place the capsules in identical sealed plastic bags labeled Migraine 1 through Migraine 4.

Intervention model description

Randomized, Double-blind, Placebo-controlled, Crossover Trial

Eligibility

Sex/Gender
ALL
Age
21 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Age ≥ 21 and ≤ 65 * Able to communicate in English * Migraine, with or without aura, in its episodic or chronic manifestations, as per the International Headache Society (IHS) classification International Classification of Headache Disorders (ICHD-3) criteria (section 1.1, 1.2, 1.3).(48) * Ability to provide informed consent and complete website questionnaires in English * Agrees not to use cannabis outside of the study during participation in the study * Agrees not to use opioids or barbiturates during participation in the study * Agrees not to drive a motor vehicle within 4 hours following last use of inhaled cannabis during participation in the study

Exclusion criteria

* Positive urine drug test for THC, barbiturates, opioids, oxycodone, or methadone prior to enrollment * Pregnancy * Breastfeeding * Prisoner * Known cognitive impairment * Institutionalized * Current moderate-severe or severe depression * Current or past history of bipolar depression, schizophrenia, or psychosis * Current or past history of cannabis, alcohol, opioid, or amphetamine abuse or other substance use disorder at the discretion of the research team * Active pulmonary disease class IV heart failure, cirrhosis, or other severe medical illnesses at the discretion of the research team. * Allergy or past adverse effects or negative past experiences from cannabis

Design outcomes

Primary

MeasureTime frameDescription
Headache Pain Relief at 2 Hours Post-Treatment2 Hours Post-TreatmentDichotomous endpoint of pain reduction defined as reduction from moderate/severe pain to mild/no pain

Secondary

MeasureTime frameDescription
Headache pain freedom2 hoursDichotomous endpoint of reduction from moderate/severe pain to no pain
Most bothersome symptom freedom2 hoursDichotomous endpoint of resolution of most bothersome symptom (of photophobia, phonophobia, and nausea) selected at the beginning of the migraine prior to cannabis administration

Other

MeasureTime frameDescription
Freedom from photophobia1 hour, 2 hours, 24 hours, 48 hoursDichotomous endpoint of resolution of photophobia
Freedom from phonophobia1 hour, 2 hours, 24 hours, 48 hoursDichotomous endpoint of resolution of phonophobia
Freedom from nausea1 hour, 2 hours, 24 hours, 48 hoursDichotomous endpoint of resolution of nausea
Headache pain relief1 hour, 24 hours, 48 hoursDichotomous endpoint of reduction from moderate/severe pain to mild/no pain
Use of rescue medicationAt any time over 48 hoursDichotomous endpoint of use of rescue medication
Sustained pain freedom24 hours and 48 hoursDichotomous endpoint of absence of headache pain at 2 hours after dose, with no use of rescue medication and no relapse of headache pain
Sustained most bothersome symptom freedom24 hours and 48 hoursDichotomous endpoint of absence of most bothersome symptom at 2 hours afer dose, with no use of rescue medication and no relapse of most bothersome symptom
Freedom from vomitingAt any time over 48 hoursDichotomous endpoint of whether patient vomited during this migraine attack
Headache pain freedom1 hour, 24 hours, 48 hoursDichotomous endpoint of reduction from moderate/severe pain to no pain
Most bothersome symptom freedom1 hour, 24 hours, 48 hoursDichotomous endpoint of resolution of most bothersome symptom (of photophobia, phonophobia, and nausea) selected at the beginning of the migraine prior to cannabis administration

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026