NCT04754061

Brief Summary

The goal of this multi-centre phase I/II open-label, single-arm study is to determine the safety, feasibility, therapeutic dose, and preliminary efficacy of psilocybin microdosing to treat psychological distress among patients with advanced illness. Forty patients will receive psilocybin drug product (1-3mg per day, Mon-Fri) for 4 weeks to be administered via oral capsules by the participant. Feasibility (recruitment rate, rate of intervention and follow-up completion), safety (rate of adverse events), dosing, and preliminary efficacy (depression, anxiety, overall well-being, and global impression of change) will be measured.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
20

participants targeted

Target at P25-P50 for phase_1

Timeline
Completed

Started Jan 2024

Geographic Reach
1 country

2 active sites

Status
recruiting

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

November 11, 2020

Completed
3 months until next milestone

First Posted

Study publicly available on registry

February 15, 2021

Completed
2.9 years until next milestone

Study Start

First participant enrolled

January 8, 2024

Completed
12 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2025

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2025

Completed
Last Updated

August 9, 2024

Status Verified

August 1, 2024

Enrollment Period

12 months

First QC Date

November 11, 2020

Last Update Submit

August 6, 2024

Conditions

Keywords

existential distresspsychological distresspsilocybinmicrodosing

Outcome Measures

Primary Outcomes (18)

  • Recruitment Rate

    Number of patients enrolled divided by number of patients approached

    Through study completion, up to 1 year

  • Intervention Completion Rate

    Number of participants who complete the intervention divided by number of participants enrolled

    Through study completion, up to 13 months

  • Follow-up Completion Rate

    Number of participants who complete follow-up divided by number of participants enrolled

    Through study completion, up to 18 months

  • Number of Participants With Adverse Events - Change in Blood Pressure

    Proportion of participants with systolic blood pressure of \>180mmHg or an increase in 40% from baseline measurements

    Measured at baseline and daily (Mon-Fri) from enrolment to intervention completion (up to 4 weeks)

  • Number of Participants With Adverse Events - Change in Heart Rate

    Proportion of participants with resting heart rate \>100bpm or an increase in 40% from baseline

    Measured at baseline and daily (Mon-Fri) from enrolment to intervention completion (up to 4 weeks)

  • Number of Participants With Adverse Events - Delirium

    Proportion of participants who develop delirium, measured by the Confusion Assessment Method or the Family Confusion Assessment Method

    Through intervention completion, up to 4 weeks

  • Number of Participants With Adverse Events - Serotonin Syndrome

    Proportion of participants who develop serotonin syndrome, diagnosed by Study Doctor

    Through intervention completion, up to 4 weeks

  • Number of Participants With Adverse Events - Adverse Mood or Behaviour Change

    Proportion of participants who report adverse mood or behaviour changes (recorded daily in a participant diary)

    Measured at baseline and from enrolment to intervention completion (up to 4 weeks); 2-week and 4-week follow-up

  • Psychological Distress - Anxiety and Depression

    Measured using the Hospital Anxiety and Depression Scale (higher score indicate worse anxiety/depression)

    Baseline

  • Change in Psychological Distress - Anxiety and Depression

    Measured using the Hospital Anxiety and Depression Scale (higher score indicate worse anxiety/depression)

    Weekly (every Friday) during intervention (4 weeks)

  • Change in Psychological Distress - Anxiety and Depression

    Measured using the Hospital Anxiety and Depression Scale (higher score indicate worse anxiety/depression)

    Follow-up (1 day, 2 weeks, 4 weeks, 12 weeks, 24 weeks)

  • Psychological Distress - Anxiety, Depression, and Well-being

    Measured using the Edmonton Symptom Assessment System anxiety, depression, and well-being item scores (score 0-10 for each item - higher scores indicate worse symptoms)

    Baseline

  • Change in Psychological Distress - Anxiety, Depression, and Well-being

    Measured using the Edmonton Symptom Assessment System anxiety, depression, and well-being item scores (score 0-10 for each item - higher scores indicate worse symptoms)

    Weekly (every Friday) during intervention (4 weeks)

  • Change in Psychological Distress - Anxiety, Depression, and Well-being

    Measured using the Edmonton Symptom Assessment System anxiety, depression, and well-being item scores (score 0-10 for each item - higher scores indicate worse symptoms)

    Follow-up (1 day, 2 weeks, 4 weeks, 12 weeks, 24 weeks)

  • Psychological Distress - Global Impression of Change

    Measured using the Patient Global Impression of Change scale (higher scores indicate greater positive change)

    Weekly (every Friday) during intervention (4 weeks); 1 day, 2 week, 4 week, 12 week, 24 week follow-up

  • Dosing

    Dose at which therapeutic benefit, if any, is achieved assessed by change in Hospital Anxiety and Depression Scale score (score reduction of 50% indicates therapeutic benefit)

    Weekly (each Friday) for intervention period (4 weeks)

  • Dosing

    Dose at which therapeutic benefit, if any, is achieved assessed by Edmonton Symptom Assessment Scale score (two-point score reduction or absolute score less than 3 indicate therapeutic benefit)

    Weekly (each Friday) for intervention period (4 weeks)

  • Dosing

    Dose at which therapeutic benefit, if any, is achieved assessed by Global Impression fo Change score (score of 5 or above indicate therapeutic benefit)

    Weekly (each Friday) for intervention period (4 weeks)

Secondary Outcomes (5)

  • Existential Distress

    Baseline (Friday prior to first dose administered on a Monday); 1 day, 2 week, 4 week, 12 week, 24 week follow-up

  • Psychological distress

    Baseline (Friday prior to first dose administered on a Monday); 1 day, 2 week, 4 week, 12 week, 24 week follow-up

  • Participant Quality of Life

    Baseline (Friday prior to first dose administered on a Monday); 1 day, 2 week, 4 week, 12 week, 24 week follow-up

  • Wish to Die

    Baseline (Friday prior to first dose administered on a Monday); 1 day, 2 week, 4 week, 12 week, 24 week follow-up

  • Global Distress

    Baseline (Friday prior to first dose administered on a Monday); 1 day, 2 week, 4 week, 12 week, 24 week follow-up

Study Arms (1)

Psilocybin Microdosing

EXPERIMENTAL

Participants will receive a 4-week psilocybin microdosing intervention (1-3mg/day, Monday-Friday for up to 4 weeks; start at 1mg with opportunity to increase dose each week)

Drug: Psilocybin

Interventions

Phase 1 (week 1): all enrolled participants will take a single 1mg oral dose of psilocybin once per day on Monday and Thursday. If no adverse events are reported at any point during the week (Mon-Fri), the participant will continue to Phase 2 for week 2. Phase 2: The participant will take a single 1mg oral dose of psilocybin once per day for 5 consecutive days (Monday to Friday). If no adverse events are reported at any point during the week (Mon-Fri), the participant will continue to Phase 3 for week 3. Phase 3: The participant will take two 1mg oral doses (2mg total) of psilocybin once per day for 5 consecutive days (Monday to Friday). If no adverse events are reported at any point during the week (Mon-Fri), the participant will continue to Phase 4 for week 4. Phase 4 (maximum allowable dose): The participant will take three 1mg oral doses (3mg total) of psilocybin once per day for 5 consecutive days (Monday to Friday).

Psilocybin Microdosing

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients \>/=18 years of age
  • Advanced illness under palliative care management, defined as having 1 to \<12 months life expectancy (in the judgment of the palliative care provider)
  • Experiencing psychological distress, defined as a score of 7 or greater on the Depression, Anxiety or Well-being item of the Edmonton Symptom Assessment System
  • Ability to understand and communicate in English or French

You may not qualify if:

  • Current or previously diagnosed, or first-degree relative, with psychotic or bipolar disorder
  • Previously deemed eligible for MAiD with intention to proceed with MAiD regardless of study intervention effectiveness (this criteria is meant to exclude patients who would be unlikely to complete follow-up - those considering or being assessed for MAiD will still be eligible)
  • Documented or suspected delirium in the past 3 months without a clearly defined reversible cause (e.g. opioid toxicity, infection) and resolution
  • Documented moderate or severe dementia diagnosis
  • Inability to provide first-person informed consent
  • Severe or unstable physical symptoms based on the judgment of the palliative care provider
  • Palliative Performance Scale \<30%
  • Cancer with known central nervous system (CNS) involvement or other CNS disease
  • Use of high-dose psychedelic substances in the past year
  • Taking lithium at any dose
  • Taking tramadol at any dose
  • Taking any monoamine oxidase inhibitor at any dose \[American Hospital Formulary Service (AFHS) group 28:16.04.12 or 28:36.32, including, but not limited to, moclobemide, tranylcypromine, phenelzine, selegiline, rasagiline\]
  • Taking any atypical antipsychotic (aripiprazole, asenapine, brexpiprazole, clozapine, lurasidone, olanzapine, paliperidone, quetiapine, risperidone, ziprasidone) (patients can be included if their atypical antipsychotic is either stopped, or if appropriate, substituted with haloperidol 48 hours prior to the start and for the duration of the intervention period and follow-up)
  • Inability to ingest oral capsule
  • Pregnancy or lactation
  • +2 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

The Ottawa Hospital

Ottawa, Ontario, K1H 8L6, Canada

RECRUITING

Bruyere Continuing Care

Ottawa, Ontario, K1R 6K9, Canada

RECRUITING

Related Publications (16)

  • Steis MR, Evans L, Hirschman KB, Hanlon A, Fick DM, Flanagan N, Inouye SK. Screening for delirium using family caregivers: convergent validity of the Family Confusion Assessment Method and interviewer-rated Confusion Assessment Method. J Am Geriatr Soc. 2012 Nov;60(11):2121-6. doi: 10.1111/j.1532-5415.2012.04200.x. Epub 2012 Oct 5.

    PMID: 23039310BACKGROUND
  • Zigmond AS, Snaith RP. The hospital anxiety and depression scale. Acta Psychiatr Scand. 1983 Jun;67(6):361-70. doi: 10.1111/j.1600-0447.1983.tb09716.x.

    PMID: 6880820BACKGROUND
  • Mitchell AJ, Meader N, Symonds P. Diagnostic validity of the Hospital Anxiety and Depression Scale (HADS) in cancer and palliative settings: a meta-analysis. J Affect Disord. 2010 Nov;126(3):335-48. doi: 10.1016/j.jad.2010.01.067. Epub 2010 Mar 5.

    PMID: 20207007BACKGROUND
  • Kamper SJ, Maher CG, Mackay G. Global rating of change scales: a review of strengths and weaknesses and considerations for design. J Man Manip Ther. 2009;17(3):163-70. doi: 10.1179/jmt.2009.17.3.163.

    PMID: 20046623BACKGROUND
  • Watanabe SM, Nekolaichuk C, Beaumont C, Johnson L, Myers J, Strasser F. A multicenter study comparing two numerical versions of the Edmonton Symptom Assessment System in palliative care patients. J Pain Symptom Manage. 2011 Feb;41(2):456-68. doi: 10.1016/j.jpainsymman.2010.04.020. Epub 2010 Sep 15.

    PMID: 20832987BACKGROUND
  • Galiana L, Rudilla D, Oliver A, Barreto P. The Short Demoralization Scale (SDS): A new tool to appraise demoralization in palliative care patients. Palliat Support Care. 2017 Oct;15(5):516-523. doi: 10.1017/S1478951516000973. Epub 2017 Jan 9.

    PMID: 28065203BACKGROUND
  • Templer DI. The construction and validation of a Death Anxiety Scale. J Gen Psychol. 1970 Apr;82(2d Half):165-77. doi: 10.1080/00221309.1970.9920634. No abstract available.

    PMID: 4394812BACKGROUND
  • Skevington SM, Lotfy M, O'Connell KA; WHOQOL Group. The World Health Organization's WHOQOL-BREF quality of life assessment: psychometric properties and results of the international field trial. A report from the WHOQOL group. Qual Life Res. 2004 Mar;13(2):299-310. doi: 10.1023/B:QURE.0000018486.91360.00.

    PMID: 15085902BACKGROUND
  • World Health Organization Division of Mental Health. WHOQOL-BREF : introduction, administration, scoring and generic version of the assessment : field trial version, December 1996. Geneva: World Health Organization; 1996

    BACKGROUND
  • Durst AV, Spencer B, Bula C, Fustinoni S, Mazzocato C, Rochat E, Rubli Truchard E, Monod S, Jox RJ. Wish to Die in Older Patients: Development and Validation of Two Assessment Instruments. J Am Geriatr Soc. 2020 Jun;68(6):1202-1209. doi: 10.1111/jgs.16392. Epub 2020 Feb 29.

    PMID: 32112569BACKGROUND
  • National Comprehensive Cancer Network. NCCN Distress Thermometer and Problem List for Patients. Version 2, dated March 11th, 2020. https://www.nccn.org/about/permissions/thermometer.aspx

    BACKGROUND
  • Anderson F, Downing GM, Hill J, Casorso L, Lerch N. Palliative performance scale (PPS): a new tool. J Palliat Care. 1996 Spring;12(1):5-11.

    PMID: 8857241BACKGROUND
  • Inouye SK, van Dyck CH, Alessi CA, Balkin S, Siegal AP, Horwitz RI. Clarifying confusion: the confusion assessment method. A new method for detection of delirium. Ann Intern Med. 1990 Dec 15;113(12):941-8. doi: 10.7326/0003-4819-113-12-941.

    PMID: 2240918BACKGROUND
  • Griffiths RR, Johnson MW, Carducci MA, Umbricht A, Richards WA, Richards BD, Cosimano MP, Klinedinst MA. Psilocybin produces substantial and sustained decreases in depression and anxiety in patients with life-threatening cancer: A randomized double-blind trial. J Psychopharmacol. 2016 Dec;30(12):1181-1197. doi: 10.1177/0269881116675513.

    PMID: 27909165BACKGROUND
  • Ross S, Bossis A, Guss J, Agin-Liebes G, Malone T, Cohen B, Mennenga SE, Belser A, Kalliontzi K, Babb J, Su Z, Corby P, Schmidt BL. Rapid and sustained symptom reduction following psilocybin treatment for anxiety and depression in patients with life-threatening cancer: a randomized controlled trial. J Psychopharmacol. 2016 Dec;30(12):1165-1180. doi: 10.1177/0269881116675512.

    PMID: 27909164BACKGROUND
  • Downar J, Lapenskie J, Anderson K, Parsons G, Polskaia N, Lalumiere G, Lawlor P. PSilocybin for psYCHological and existential distress in PALliative care (PSYCHED-PAL): A single arm unblinded clinical trial. Palliat Med. 2026 Jan 30:2692163261416269. doi: 10.1177/02692163261416269. Online ahead of print.

MeSH Terms

Conditions

DepressionAnxiety Disorders

Interventions

Psilocybin

Condition Hierarchy (Ancestors)

Behavioral SymptomsBehaviorMental Disorders

Intervention Hierarchy (Ancestors)

Indole AlkaloidsAlkaloidsHeterocyclic CompoundsIndolesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingTryptaminesIndolizidinesIndolizines

Study Officials

  • James Downar, MDCM, MSc

    The Ottawa Hospital Research Institute

    PRINCIPAL INVESTIGATOR

Central Study Contacts

James Downar, MDCM, MSc

CONTACT

Julie Lapenskie, MSc

CONTACT

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: The study is a multi-site, open-label, single-arm phase 1/2 proof-of-concept dose-finding, feasibility and preliminary efficacy clinical trial.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Head, Division of Palliative Care

Study Record Dates

First Submitted

November 11, 2020

First Posted

February 15, 2021

Study Start

January 8, 2024

Primary Completion

January 1, 2025

Study Completion

June 1, 2025

Last Updated

August 9, 2024

Record last verified: 2024-08

Data Sharing

IPD Sharing
Will not share

Locations