Repeat Dosing of Psilocybin in Migraine Headache
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ClinicalTrials.gov Identifier: NCT04218539 |
Recruitment Status :
Recruiting
First Posted : January 6, 2020
Last Update Posted : August 8, 2022
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Condition or disease | Intervention/treatment | Phase |
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Migraine Headache | Drug: Psilocybin Drug: Placebo | Phase 1 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 24 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | Repeat Dosing of Psilocybin in Headache Disorders |
Actual Study Start Date : | August 10, 2021 |
Estimated Primary Completion Date : | July 15, 2023 |
Estimated Study Completion Date : | July 15, 2024 |

Arm | Intervention/treatment |
---|---|
Experimental: Placebo/Placebo
Subjects will receive a dose of placebo, followed by a dose of placebo approximately 7 days later.
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Drug: Placebo
25mg Diphenhydramine |
Experimental: Placebo/Psilocybin
Subjects will receive a dose of placebo, followed by a dose of psilocybin approximately 7 days later.
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Drug: Psilocybin
10mg Psilocybin Drug: Placebo 25mg Diphenhydramine |
Experimental: Psilocybin/Placebo
Subjects will receive a dose of psilocybin, followed by a dose of placebo approximately 7 days later.
|
Drug: Psilocybin
10mg Psilocybin Drug: Placebo 25mg Diphenhydramine |
Experimental: Psilocybin/Psilocybin
Subjects will receive a dose of psilocybin, followed by a dose of psilocybin approximately 7 days later.
|
Drug: Psilocybin
10mg Psilocybin |
- Change in migraine attack frequency [ Time Frame: From two weeks before the first session to two months after second session using a headache diary ]Average number (number per week)
- Change in pain intensity of migraine attacks [ Time Frame: From two weeks before the first session to two months after second session using a headache diary ]Average pain intensity (4-tiered pain score; 0=none, 1=mild, 2=moderate, 3=severe)
- Change in duration of migraine attacks [ Time Frame: From two weeks before the first session to two months after second session using a headache diary ]Average duration (measured in hours)
- Change in intensity of photophobia (light sensitivity) [ Time Frame: From two weeks before the first session to two months after second session using a headache diary ]Average intensity (4-tiered pain score; 0=none, 1=mild, 2=moderate, 3=severe)
- Change in intensity of phonophobia (noise sensitivity) [ Time Frame: From two weeks before the first session to two months after second session using a headache diary ]Average intensity (4-tiered pain score; 0=none, 1=mild, 2=moderate, 3=severe)
- Average intensity of nausea/vomiting [ Time Frame: From two weeks before the first session to two months after second session using a headache diary ]Average intensity (4-tiered pain score; 0=none, 1=mild, 2=moderate, 3=severe)
- Change in functional disability [ Time Frame: From two weeks before the first session to two months after second session using a headache diary ]Average disability (4-tiered pain score; 0=none, 1=mild, 2=moderate, 3=severe)
- Use of abortive/rescue medication [ Time Frame: From two weeks before the first session to two months after second session using a headache diary ]number of times per week
- Time to first migraine attack [ Time Frame: From the second session until two months after second session using a headache diary ]Measured in days
- Migraine attack-free time [ Time Frame: From two weeks before the first session to two months after second session using a headache diary ]Number of 24-hour days (may be non-consecutive)
- Quality of life using the Centers for Disease Control (CDC) Health-Related Quality of Life Scale: Healthy Days Symptoms Module [ Time Frame: From two weeks before the first session to two months after second session using a headache diary ]
4 questions scored 0 to 30 each; higher numbers indicate worse quality of life.
(1) pain-related impairment, (2) mood symptoms, (3) anxiety symptoms, (4) lack of sleep. Percent change for each measure as well as total score (range 0 to 120) will be calculated
- Psychedelic effects using the 5-Dimensional Altered States of Consciousness (5D-ASC) scale [ Time Frame: Starting on the first test day until the second test day approximately one week later; taken both test days approximately 6 hours after drug administration ]94 questions scored 0 to 100 each; higher numbers indicate greater psychedelic effects. Questions address 5 dimensions: (1) Oceanic Boundlessness (score range 0-2700), (2) Dread of Ego Dissolution (score range 0-2100), (3) Visionary Restructuralization (score range 0-1800), (4) Auditory Alterations (score range 0-1600), and (5) Vigilance Reduction (score range 0-1200). Score for each dimension as well as total score (range 0 to 9400) will be measured.
- Change in blood pressure- Systolic [ Time Frame: Starting on the first test day until the second test day approximately one week later; measured both test sessions before drug administration, every 30 min in the first hour, then hourly for 4 hours or until resolution of drug effects (~6hrs after drug) ]Maximum change from baseline during each test day (mm Hg)
- Change in blood pressure- Diastolic [ Time Frame: Starting on the first test day until the second test day approximately one week later; measured both test sessions before drug administration, every 30 min in the first hour, then hourly for 4 hours or until resolution of drug effects (~6hrs after drug) ]Maximum change from baseline during each test day (mm Hg)
- Change in heart rate [ Time Frame: Starting on the first test day until the second test day approximately one week later; measured both test sessions before drug administration, every 30 min in the first hour, then hourly for 4 hours or until resolution of drug effects (~6hrs after drug) ]Maximum change from baseline during each test day (beats per minute)
- Change in peripheral oxygenation [ Time Frame: Starting on the first test day until the second test day approximately one week later; measured both test sessions before drug administration, every 30 min in the first hour, then hourly for 4 hours or until resolution of drug effects (~6hrs after drug) ]Maximum change from baseline during each test day (SpO2)
- Change in peripheral calcitonin gene-related peptide (CGRP) levels [ Time Frame: Approximately 3 months; measured at screening, on both test days (0, 2, and 4 hours after drug administration), and follow-up (~2 months after second test day) ]Change in peripheral neuropeptide levels
- Change in pituitary adenylate cyclase-activating peptide (PACAP) levels [ Time Frame: Approximately 3 months; measured at screening, on both test days (0, 2, and 4 hours after drug administration), and follow-up (~2 months after second test day) ]Change in peripheral neuropeptide levels

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Ages Eligible for Study: | 21 Years to 65 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Diagnosis of migraine headache per ICHD-3 criteria
- Typical pattern of migraine attacks with approximately two migraines or more weekly
- Attacks are managed by means involving no more than twice weekly triptan use
Exclusion Criteria:
- Axis I psychotic or manic disorder (e.g., schizophrenia, bipolar I, depression with psychosis)
- Axis I psychotic or manic disorder in first degree relative
- Unstable medical condition; severe renal, cardiac, or hepatic disease; pacemaker; or serious central nervous system pathology
- Pregnant, breastfeeding, lack of adequate birth control
- History of intolerance to psilocybin, lysergic acid diethylamide (LSD), or related compounds
- Drug abuse within the past 3 months (excluding tobacco)
- Urine toxicology positive to drugs of abuse
- Alcohol use of >21 drinks per week (males); >14 drinks per week (females; NIAAA guidelines)
- Use of alcohol in the week prior to the first test day
- Use of vasoconstrictive medications (i.e., sumatriptan, pseudoephedrine, midodrine) within 5 half-lives of test days
- Use of serotonergic antiemetics (i.e., ondansetron) in the past 2 weeks
- Use of antidepressant medication (i.e., TCA, MAOI, SSRI) in the past 6 weeks
- Use of steroids or certain other immunomodulatory agents (i.e., azathioprine) in the past 2 weeks
- Use of migraine onabotulinum toxin (i.e., Botox) or monoclonal antibodies against CGRP or its receptor (i.e., erenumab) in the past month or while therapeutic effects are still present

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04218539
Contact: Carly Hewes | 203-932-5711 ext 7411 | carly.hewes@yale.edu | |
Contact: Emmanuelle Schindler, MD PhD | 203-932-5711 ext 4335 | emmanuelle.schindler@yale.edu |
United States, Connecticut | |
VA Connecticut Healthcare System | Recruiting |
West Haven, Connecticut, United States, 06516 | |
Contact: Carly Hewes 203-932-5711 ext 7411 carly.hewes@yale.edu | |
Contact: Christina Luddy, BS 203-932-5711 ext 4549 christina.luddy@yale.edu | |
Principal Investigator: Emmanuelle Schindler, MD, PhD |
Responsible Party: | Yale University |
ClinicalTrials.gov Identifier: | NCT04218539 |
Other Study ID Numbers: |
2000026974 |
First Posted: | January 6, 2020 Key Record Dates |
Last Update Posted: | August 8, 2022 |
Last Verified: | August 2022 |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
psilocybin inflammation calcitonin gene-related peptide (CGRP) pituitary adenylate cyclase-activating peptide (PACAP) |
Migraine Disorders Headache Headache Disorders, Primary Headache Disorders Brain Diseases Central Nervous System Diseases Nervous System Diseases |
Pain Neurologic Manifestations Psilocybin Hallucinogens Physiological Effects of Drugs Psychotropic Drugs |