MeditationOMMNCT06560658
Optimizing Microdosing and Meditation
A study testing Psilocybin and Meditation in people with Meditation and Microdosing, run by National University of Natural Medicine at 1 site in United States.
Trial summary
The goal of this clinical trial is to test the feasibility of combining meditation with psilocybin microdosing in healthy adults. The main questions it aims to answer are: 1. Recruitment and retention feasibility 2. Acceptability, Safety and Tolerability 3. Read more about this study
- Who is it for?
- Ages 21 years and olderHealthy volunteers can take part
- Conditions the study is for
- Meditation, Microdosing
- What is being tested?
- Psilocybin and Meditation
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 0 participants
- Where
- 1 siteUnited States
- Study dates
- 1 Oct 2024to 1 Nov 2025
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 21 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Age 21 or older - Oregon Psilocybin Services Act sets the minimum eligible age of 21.
- Able to attend all study events.
- Able to read and speak fluent English.
- No more than 100 hours of lifetime meditation experience.
- No prior experience of microdosing of a psychedelic substance and no more two macrodose experiences.
Who cannot join
- A personal or family history of an immediate family member of schizophrenia, psychosis of any kind, mania, or hypomania.
- A current prescription for lithium, antipsychotic, Phase II UGT substrate such as diclofenac or probenecid, or an unwillingness to taper off these or other medications that the study clinicians determine to be a risk for interactions.
- Active suicidal ideations or history of suicide attempts. Passive ideation, such as "I wouldn't mind if I never woke up again" is permissible.
- Uncontrolled hypertension or heart disease.
- Any form of personality disorder.
- Current recreational drug use or any form of substance abuse in the previous six months.
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- Pregnancy, plans to become pregnant during the study period, or breast feeding.
- Active cancer treatment.
- Any mental illness that could currently be rated as severe. This includes but is not limited to a PHQ-9 score above 20, GAD-7 score above 14, or their equivalents on comparable scales and acute trauma related symptoms.
Trial locations and contacts
1 site in 1 country.
United States1 site
National University of Natural Medicine
Portland, Oregon, 97201
About this study
The goal of this clinical trial is to test the feasibility of combining meditation with psilocybin microdosing in healthy adults. The main questions it aims to answer are:
- Recruitment and retention feasibility
- Acceptability, Safety and Tolerability
- Exploratory Measures:
Read more
3.1: Explore potential changes in sleep quality and duration, heart rate variability, and other biometric outcomes captured by the Oura Ring (3rd generation).
3.2: Explore potential changes in quality of life scores 3.3: Explore potential differences in altered states of consciousness across groups 3.4: Explore qualitative data collected during sessions and at follow-up to assess satisfaction and receive feedback about the intervention.
Every participant will receive the psilocybin microdosing intervention, however, half of the participants will be randomly selected to receive the meditation intervention.
Read the detailed description
Research has shown that both meditation and high doses of psilocybin can produce enhanced feelings of well-being that persist. When combined, the synergistic effects might be more than the sum of the parts when treating mental health challenges like depression. The results for microdosing, on the other hand, are mixed, and there have yet to be studies on the synergy between microdosing and meditation.
If the synergy between microdoses of psilocybin and meditation is significant, this suggests the possibility of a safe, effective, and low-cost intervention involving group-based meditation training and practice combined with a psilocybin microdosing protocol. The Oregon Psilocybin Services program provides a unique opportunity to test this possibility in the context of services now legally available to clients, allowing researchers to assess the safety and efficacy in a real-life context.
Project aims and methods This study aims to test the feasibility of the model by assessing recruitment, retention, acceptability, safety, and preliminary efficacy of the intervention. In addition to an appropriate medical screening and intake we will collect questionnaire data using the Credibility/Expectancy Questionnaire (CEQ), PROMIS-29, Five Facet of Mindfulness Questionnaire (FFMQ), Pittsburgh Sleep Quality Index (PSQI), Altered States of Consciousness (11-ASC) rating scale, and a survey and structured interview. During a one week wash-in period, the intervention period, and for one month after the intervention, Oura rings will be used to collect over 20 biometric data points including sleep quality, respiration rate, heart rate variability, and more.
Participants will consist of adults in Oregon that will be individually screened by a study investigator and then randomized into two arms. One arm will receive microdosing only consisting of one group preparation session and two microdosing sessions per week for two weeks. The other arm will receive the same microdosing protocol with the addition of morning online meditation practice Monday through Friday for both weeks, and will utilize meditation practices during their microdose sessions. The meditation sessions will include opportunities for the group to discuss their meditation experiences and a psychoeducational component to further improve outcomes. This content will provide participants with a better understanding of the ruminations that interrupt their focus while meditating and encourage greater distance from, and less distress concerning, those thoughts.
Expected outcomes The authors hypothesize that the model will be feasible if we are able to recruit at least 20 out of 24 expected participants, have an 80% retention rate of participants during the two week intervention period, participants on average rate their satisfaction of the intervention as 3.0 or higher on a 5-point scale, there are no more than ten adverse events or more than one serious adverse event, and data from exploratory measures indicate that further investigation is warranted.
Despite the U.S. Food and Drug Administration (FDA) granting Breakthrough Therapy status to psilocybin for the treatment of depression,56 it remains on the Drug Enforcement Agency's (DEA) Schedule I list of controlled substances alongside heroin and cocaine. While the DEA and the FDA have become increasingly more willing to grant waivers for research into psychedelic drugs, the proposed study does not require such a waiver to comply with the law. This is due to the unique construction of Oregon's Psilocybin Services Act (Chapter 475A of Oregon Statutes). The state law creates a program wherein licensed growers, inspected by licensed laboratories, can distribute psilocybin mushrooms to licensed service centers. It is only within the approved boundaries of these service centers and while supervised by a licensed facilitator that the mushrooms can be consumed by clients who must stay on site for a designated amount of time that depends on the dose.
According to Oregon Health Authority Administrative rule 333-333-5130, facilitators of psilocybin service are prohibited from (1) practicing any other scope of practice they may have (e.g. naturopathic medicine) while facilitating, and (2) handling, selling, or transferring psilocybin at any time. Thus, while it is technically true that growers, services centers, and clients are liable for trafficking and possession of a Schedule I substance, the federal government has adopted a policy of allowing state programs such as this in a manner similar to their policy on cannabis. Complying with Oregon law means that study investigators are not administering or providing psilocybin, but instead are studying the facilitation of the services. At the request of the Institutional Review Board (IRB) of the National University of Natural Medicine (NUNM) for a similar study, this rationale was confirmed via direct communication with the regional DEA office who agreed with this interpretation of both federal and state law. Participants are given clear information on their liability in order to provide consent.
- Conditions
- Meditation, Microdosing
- Being tested
- Psilocybin, Meditation
- Keywords
- psilocybin, microdosing, meditation
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
PsilocybinDrug
Also called psilocybin microdosing
Participants will receive four 2-hour sessions of supervised microdosing of psilocybin in a two week period.
MeditationBehavioural
Participants will receive four 2-hour sessions of supervised microdosing of psilocybin in a two week period. In addition to meditating during their sessions, participants will also meet online five days a week for meditation instruction and practice.
| Study group | Role | What they receive |
|---|---|---|
| Microdosing only | Experimental | Not described Receives: Drug: Psilocybin |
| Microdosing plus meditation | Experimental | Not described Receives: Drug: Psilocybin; Behavioral: Meditation |
What is being measured
The primary outcome is the main question the study is designed to answer.
Recruitment and Retention Feasibility
Determine the recruitment rate (number of participants enrolled compared to those approached).
Evaluate the participant retention rate throughout the study, including psilocybin sessions and follow-up assessments.
Measured: From time of approval to completion of the study, up to one year.
Acceptability
Assess participant satisfaction with the group psilocybin-assisted therapy format through qualitative interviews and survey questions.
Measured: From time of approval to completion of the study, up to one year.
Safety and Tolerability
Monitor the incidence and severity of adverse events associated with psilocybin administration in a group setting.
Measured: From time of approval to completion of the study, up to one year.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted19 Aug 2024
- Study start1 Oct 2024 (estimated)
- Primary completion1 Oct 2025 (estimated)
- Study completion1 Nov 2025 (estimated)
Why it stopped: No funding was obtained.
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for MeditationStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 0 participants (actual)
Sponsor and investigators
- Lead sponsor
- National University of Natural Medicine
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Matthew Hicks, National University of Natural Medicine
- Investigators
- Matthew Hicks, ND, MS, Principal investigator, National University of Natural Medicine
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06560658
- Sponsor's protocol ID
- OMM
- Acronym
- OMM
- Status last verified
- Jun 2025
- First submitted
- 12 Aug 2024
- Last updated
- 5 Jun 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: No data from this project is intended for any public or private repository. However, project data and relevant protocols for which no public repository exists will be made available upon request. We will not publish our trial protocol nor will we deposit data to public data warehouses. We will make our data and statistical code available to journal editors upon request for open access publications and/or to confirm our results.
Study at a glance
From the registry record, last updated by the sponsor on 5 Jun 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Optimizing Microdosing and Meditation
- ClinicalTrials.gov ID
- NCT06560658
- Acronym / sponsor ID
- OMM / OMM
- Conditions
- Meditation, Microdosing
- Keywords
- psilocybin, microdosing, meditation
- Study type
- Interventional
- Recruitment status
- WithdrawnReason stopped: No funding was obtained.
- Enrolment
- 0 participants (actual)
- Lead sponsor
- National University of Natural MedicineUniversity, hospital or other
- Study start
- 1 Oct 2024 (estimated)
- Primary completion
- 1 Oct 2025 (estimated)
- Study completion
- 1 Nov 2025 (estimated)
- First posted
- 19 Aug 2024 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The goal of this clinical trial is to test the feasibility of combining meditation with psilocybin microdosing in healthy adults. The main questions it aims to answer are:
- Recruitment and retention feasibility
- Acceptability, Safety and Tolerability
- Exploratory Measures:
3.1: Explore potential changes in sleep quality and duration, heart rate variability, and other biometric outcomes captured by the Oura Ring (3rd generation).
3.2: Explore potential changes in quality of life scores 3.3: Explore potential differences in altered states of consciousness across groups 3.4: Explore qualitative data collected during sessions and at follow-up to assess satisfaction and receive feedback about the intervention.
Every participant will receive the psilocybin microdosing intervention, however, half of the participants will be randomly selected to receive the meditation intervention.
Detailed description
Research has shown that both meditation and high doses of psilocybin can produce enhanced feelings of well-being that persist. When combined, the synergistic effects might be more than the sum of the parts when treating mental health challenges like depression. The results for microdosing, on the other hand, are mixed, and there have yet to be studies on the synergy between microdosing and meditation.
If the synergy between microdoses of psilocybin and meditation is significant, this suggests the possibility of a safe, effective, and low-cost intervention involving group-based meditation training and practice combined with a psilocybin microdosing protocol. The Oregon Psilocybin Services program provides a unique opportunity to test this possibility in the context of services now legally available to clients, allowing researchers to assess the safety and efficacy in a real-life context.
Project aims and methods This study aims to test the feasibility of the model by assessing recruitment, retention, acceptability, safety, and preliminary efficacy of the intervention. In addition to an appropriate medical screening and intake we will collect questionnaire data using the Credibility/Expectancy Questionnaire (CEQ), PROMIS-29, Five Facet of Mindfulness Questionnaire (FFMQ), Pittsburgh Sleep Quality Index (PSQI), Altered States of Consciousness (11-ASC) rating scale, and a survey and structured interview. During a one week wash-in period, the intervention period, and for one month after the intervention, Oura rings will be used to collect over 20 biometric data points including sleep quality, respiration rate, heart rate variability, and more.
Participants will consist of adults in Oregon that will be individually screened by a study investigator and then randomized into two arms. One arm will receive microdosing only consisting of one group preparation session and two microdosing sessions per week for two weeks. The other arm will receive the same microdosing protocol with the addition of morning online meditation practice Monday through Friday for both weeks, and will utilize meditation practices during their microdose sessions. The meditation sessions will include opportunities for the group to discuss their meditation experiences and a psychoeducational component to further improve outcomes. This content will provide participants with a better understanding of the ruminations that interrupt their focus while meditating and encourage greater distance from, and less distress concerning, those thoughts.
Expected outcomes The authors hypothesize that the model will be feasible if we are able to recruit at least 20 out of 24 expected participants, have an 80% retention rate of participants during the two week intervention period, participants on average rate their satisfaction of the intervention as 3.0 or higher on a 5-point scale, there are no more than ten adverse events or more than one serious adverse event, and data from exploratory measures indicate that further investigation is warranted.
Despite the U.S. Food and Drug Administration (FDA) granting Breakthrough Therapy status to psilocybin for the treatment of depression,56 it remains on the Drug Enforcement Agency's (DEA) Schedule I list of controlled substances alongside heroin and cocaine. While the DEA and the FDA have become increasingly more willing to grant waivers for research into psychedelic drugs, the proposed study does not require such a waiver to comply with the law. This is due to the unique construction of Oregon's Psilocybin Services Act (Chapter 475A of Oregon Statutes). The state law creates a program wherein licensed growers, inspected by licensed laboratories, can distribute psilocybin mushrooms to licensed service centers. It is only within the approved boundaries of these service centers and while supervised by a licensed facilitator that the mushrooms can be consumed by clients who must stay on site for a designated amount of time that depends on the dose.
According to Oregon Health Authority Administrative rule 333-333-5130, facilitators of psilocybin service are prohibited from (1) practicing any other scope of practice they may have (e.g. naturopathic medicine) while facilitating, and (2) handling, selling, or transferring psilocybin at any time. Thus, while it is technically true that growers, services centers, and clients are liable for trafficking and possession of a Schedule I substance, the federal government has adopted a policy of allowing state programs such as this in a manner similar to their policy on cannabis. Complying with Oregon law means that study investigators are not administering or providing psilocybin, but instead are studying the facilitation of the services. At the request of the Institutional Review Board (IRB) of the National University of Natural Medicine (NUNM) for a similar study, this rationale was confirmed via direct communication with the regional DEA office who agreed with this interpretation of both federal and state law. Participants are given clear information on their liability in order to provide consent.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Microdosing only | Experimental | Drug: Psilocybin |
| Microdosing plus meditation | Experimental | Drug: Psilocybin, Behavioral: Meditation |
Who may qualify
- Ages
- 21 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Age 21 or older - Oregon Psilocybin Services Act sets the minimum eligible age of 21.
- Able to attend all study events.
- Able to read and speak fluent English.
- No more than 100 hours of lifetime meditation experience.
- No prior experience of microdosing of a psychedelic substance and no more two macrodose experiences.
Key exclusion criteria (9 listed)
- A personal or family history of an immediate family member of schizophrenia, psychosis of any kind, mania, or hypomania.
- A current prescription for lithium, antipsychotic, Phase II UGT substrate such as diclofenac or probenecid, or an unwillingness to taper off these or other medications that the study clinicians determine to be a risk for interactions.
- Active suicidal ideations or history of suicide attempts. Passive ideation, such as "I wouldn't mind if I never woke up again" is permissible.
- Uncontrolled hypertension or heart disease.
- Any form of personality disorder.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| PsilocybinAlso: psilocybin microdosingParticipants will receive four 2-hour sessions of supervised microdosing of psilocybin in a two week period. | Drug | Microdosing only, Microdosing plus meditation |
| MeditationParticipants will receive four 2-hour sessions of supervised microdosing of psilocybin in a two week period. In addition to meditating during their sessions, participants will also meet online five days a week for meditation instruction and practice. | Behavioural | Microdosing plus meditation |
Primary outcome
Recruitment and Retention Feasibility
Time frame: From time of approval to completion of the study, up to one year.
Determine the recruitment rate (number of participants enrolled compared to those approached). Evaluate the participant retention rate throughout the study, including psilocybin sessions and follow-up assessments.
Acceptability
Time frame: From time of approval to completion of the study, up to one year.
Assess participant satisfaction with the group psilocybin-assisted therapy format through qualitative interviews and survey questions.
Safety and Tolerability
Time frame: From time of approval to completion of the study, up to one year.
Monitor the incidence and severity of adverse events associated with psilocybin administration in a group setting.
Results and safety
The study was withdrawn before enrolling participants, so there are no results.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 5 Jun 2025.
- Individual participant dataSharing planned: No. No data from this project is intended for any public or private repository. However, project data and relevant protocols for which no public repository exists will be made available upon request. We will not publish our trial protocol nor will we deposit data to public data warehouses. We will make our data and statistical code available to journal editors upon request for open access publications and/or to confirm our results.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Matthew Hicks, ND, MS principal investigator
National University of Natural Medicine
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Psilocybin and Meditation in people with Meditation and Microdosing, run by National University of Natural Medicine at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: withdrawn, as of the sponsor's last update on 5 Jun 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study was withdrawn before enrolling participants, so there are no results.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Recruitment and Retention Feasibility (time frame: From time of approval to completion of the study, up to one year.). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Jun 2025.