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Search / Trial NCT05585229

Standardized Natural Psilocybin-assisted Psychotherapy for Tapering of Opioid Medication

Launched by UNIVERSITY OF BRITISH COLUMBIA · Oct 14, 2022

Trial Information

Current as of June 26, 2025

Not yet recruiting

Keywords

Opioid Tapering Psilocybin Psychotherapy Chronic Pain Hallucinogens Opioid Use Disorder

ClinConnect Summary

This clinical trial is exploring a new treatment approach that uses psilocybin, a natural substance found in certain mushrooms, combined with therapy to help people who are dependent on opioid medications taper off or stop using them. The study will last about eight months and will involve one or two therapy sessions where participants will receive psilocybin. Researchers want to find out if this treatment is safe, how well it works, and if any side effects occur during or after the therapy.

To participate, individuals must be between 19 and 75 years old, have chronic pain conditions (like back pain or fibromyalgia), and have been using stable doses of opioid medication for at least 90 days. They should also have tried to reduce or stop their opioid use before and be interested in making another attempt. However, certain health conditions, such as severe heart issues or recent drug use, may prevent someone from participating. Overall, this trial aims to offer a new way to help patients manage their pain without relying solely on opioids.

Gender

ALL

Eligibility criteria

  • Inclusion Criteria:
  • 1. Must be 19 - 75 years of age.
  • 2. Have a diagnosed noncancer chronic pain condition including but not limited to neuropathic pain, fibromyalgia, chronic headaches/migraines, back pain, musculoskeletal pain.
  • 3. Currently on a stable dose of opioid therapy on short-acting, long-acting, or combination of opioid medication types, for a minimum duration of 90 consecutive days.
  • 4. History of at least one unsuccessful attempt to taper or discontinue long-term opioid therapy, and has expressed current interest in making another attempt to reduce or discontinue.
  • 5. Able to swallow capsules/tablets.
  • 6. If of childbearing potential, agree to practice an effective means of birth control throughout the duration of the study.
  • Exclusion Criteria:
  • 1. Have any of the following cardiovascular conditions: uncontrolled hypertension, coronary artery disease, congenital long QT syndrome, cardiac hypertrophy, greater than first degree AV block, cardiac ischemia, congestive heart failure, myocardial infarction, tachycardia, chronic bradycardia, artificial heart valve, a clinically significant screening ECG abnormality, or any other significant cardiovascular condition.
  • 2. Asthma
  • 3. Have moderate to severe hepatic impairment.
  • 4. Chronic pain is due to cancer.
  • 5. Women who are pregnant, who intend to become pregnant during the study, or who are currently breastfeeding.
  • 6. Have a history of stroke or Transient Ischemic Attack (TIA).
  • 7. Meet DSM-5 criteria for severe alcohol or drug use disorders (other than Opioid use Disorder).
  • 8. Nicotine dependence that would prevent the participant from remaining nicotine free for the duration of dosing sessions (i.e., 6-8 hours).
  • 9. Have Epilepsy.
  • 10. Clinically significant sleep disorders such as sleep apnoea not on appropriate treatment.
  • 11. Have Insulin-dependent diabetes.
  • 12. Participants who are or have been taking mood stabilizers (e.g. lithium), SSRIs/SNRIs (e.g. citalopram, venlafaxine, vortioxetine, duloxetine), herbal remedies with serotonin activity (e.g. 5-HTP, St. John's Wort), dopamine agonists (e.g. bupropion), tricyclic antidepressants (e.g. amitriptyline), antipsychotics (e.g. haloperidol), amphetamines (e.g. amphetamine/dextroamphetamine salts, methylphenidate, dextroamphetamine, lisdexamfetamine), monoamine oxidase inhibitors (e.g. isocarboxazid, phenelzine, selegiline, tranylcypromine), alcohol or aldehyde dehydrogenase inhibitors (e.g. disulfiram), and UDG modulators (i.e. UGT modulators such as phenytoin, regorafenib, eltrombopag) during the study or in the preceding 8 weeks.
  • 13. Hallucinogenic or psychedelic drug use within 12 months (i.e. any use of mescaline, 2C-B, psilocybin, LSD, 5-MeO-DMT, ibogaine ayahuasca, MDA, MDMA, ketamine or any related molecules).
  • 14. Meet DSM-5 criteria for schizophrenia spectrum or other psychotic disorders, including major depressive disorder with psychotic features, or Bipolar I or Bipolar II Disorder.
  • 15. Have a first degree relative with schizophrenia, Bipolar I or Bipolar II Disorder.
  • 16. Meet DSM-5 criteria for diagnosis of antisocial or borderline personality disorders.
  • 17. Participants with a history of a developmental disorder.
  • 18. Participants diagnosed with serious comorbidities that may or may not influence mental health in the opinion of the qualified investigator.

About University Of British Columbia

The University of British Columbia (UBC) is a leading research institution located in Vancouver, Canada, renowned for its commitment to advancing health sciences through innovative research and education. As a prominent clinical trial sponsor, UBC leverages its interdisciplinary expertise and state-of-the-art facilities to conduct rigorous clinical studies aimed at improving patient outcomes across various medical fields. The university fosters collaborations with healthcare professionals, industry partners, and community stakeholders to translate research findings into practical applications, thereby contributing to the global advancement of medicine and public health.

Locations

Kelowna, British Columbia, Canada

Patients applied

0 patients applied

Trial Officials

W. Francois Louw, MD

Principal Investigator

University of British Columbia

Timeline

First submit

Trial launched

Trial updated

Estimated completion

Not reported

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