Opioid Use DisorderPhase 2BIPOD-InNCT06005662
Inpatient Buprenorphine Induction With Psilocybin for Opioid Use Disorder
A Phase 2 study testing Psilocybin in people with Opioid Use Disorder, run by Johns Hopkins University at 1 site in United States.
Trial summary
This study will examine the effect of a single high dose of psilocybin therapy (30 mg) versus a very low dose (1 mg) as an adjunctive therapy to individuals undergoing standard-of-care buprenorphine treatment for Opioid use disorder (OUD). Read more about this study
- Who is it for?
- Ages 21 to 70 years
- Conditions the study is for
- Opioid Use Disorder
- What is being tested?
- Psilocybin
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 0 participants
- Where
- 1 siteUnited States
- Study dates
- Apr 2027to Jul 2028
- Phase
- Phase 2
- 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 to 70 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Age 21-70 years
- Have given written informed consent
- Meet diagnostic criteria for OUD
- No antidepressant medications for approximately 5 half-lives prior to enrollment
- Not currently taking methadone, buprenorphine or naltrexone
- Urine toxicology positive for an opioid
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- Has access to stable housing
- Can read, write, and speak English fluently
- Be judged by study team clinicians to be at low risk for suicidality
- Have limited recent use of classic psychedelics (no use in the past year).
- Expresses a desire for sustained recovery from disordered opioid use.
Who cannot join
- General medical exclusion criteria:
- Women who are pregnant, nursing, or not practicing an effective means of birth control
- Cardiovascular conditions: hypertension with resting blood pressure systolic >139 or diastolic >89, angina, heart rate > 99, a clinically significant electrocardiogram abnormality (e.g., atrial fibrillation), Transient Ischemic Attack or Stroke in the last 6 months, peripheral or pulmonary vascular disease, cardiac valvulopathy
- Epilepsy
- Insulin-dependent diabetes; if taking oral hypoglycemic agent, then no history of hypoglycemia
- Currently taking on a daily basis any medications (including herbal substances and supplements) with a central nervous system effect on serotonin, including serotonin-reuptake inhibitors and monoamine oxidase inhibitors.
Show all 19Show fewer
- o For individuals who have intermittent or as needed use of such medications, psilocybin sessions will not be conducted until at least 5 half-lives of the agent have elapsed after the last dose.
- Currently taking efavirenz, Acetaldehyde dehydrogenase inhibitors such as disulfiram (Antabuse), Alcohol dehydrogenase inhibitors, or medicines such as phenytoin, regorafenib, eltrombopag.
- Currently taking buprenorphine, methadone, or naltrexone.
- Unable or unwilling to discontinue acid-reducing agents or major metabolizing enzyme inhibitors for 5-half lives prior to the experimental dosing session.
- Have a seizure disorder, multiple sclerosis, history of significant head trauma, nervous system tumor, movement disorders or any neurodegenerative condition.
- Morbidly obese (>100 pounds above ideal body weight, or Body Mass Index (BMI) >=40, or BMI >=35 with high blood pressure or diabetes)
- Body weight < 45 kilograms
- Be judged by a study team clinician to be at risk for moderate or severe alcohol or benzodiazepine withdrawal.
- Allergic to buprenorphine or hydromorphone
- For blood samples, the following lab values will be exclusionary: transaminases greater than x2 the upper limit of normal lab reference range, hemoglobin less than 11 g/d, and creatinine clearance < 40 ml/min.
- Psychiatric Exclusion Criteria:
- Current or past history of meeting diagnostic criteria for Schizophrenia, Psychotic Disorder (unless substance-induced or due to a medical condition), Bipolar I or II Disorder or Major Depression with psychotic features.
- Have a first or second degree relative with schizophrenia, psychotic disorder (unless substance induced or due to a medical condition), or bipolar I or II disorder.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Inpatient Buprenorphine Induction With Psilocybin for Opioid Use Disorder: a Randomized Double-blind Trial
This study will examine the effect of a single high dose of psilocybin therapy (30 mg) versus a very low dose (1 mg) as an adjunctive therapy to individuals undergoing standard-of-care buprenorphine treatment for Opioid use disorder (OUD). Effects of adjunctive psilocybin will be determined for longitudinal outcomes of opioid abstinence, compliance with buprenorphine maintenance, quality of life, and mood.
Read the detailed description
The proposed study is a double-blind, controlled investigation of the effect of 1 high-dose psilocybin (30 mg) session compared to a very low dose session (1 mg) following standard-of-care buprenorphine induction on drug abstinence, quality of life, craving, tobacco use, and treatment retention in healthy participants with an active OUD diagnosis. Use of buprenorphine follow standard of care, and the investigators are investigating the additive power of adjunctive psilocybin to enhance opioid abstinence, treatment adherence, quality of life, and mood.
The study will consist of a brief (6-8 day) inpatient phase for standard buprenorphine induction as well as experimental psilocybin administration, an 8-week outpatient phase involving standard buprenorphine maintenance and experimental follow-up meetings, and long-term follow-up sessions for 4 months after. During the inpatient phase, participants will be inducted onto sublingual (SL) buprenorphine (using a buprenorphine/naloxone combination product) while admitted to the Bayview Clinical Research Unit. During this time, participants will also undergo 2-3 preparatory sessions, and will undergo an experimental drug administration session under supportive conditions, during which the participants will receive either a very low dose (1 mg) or a single high (30mg) oral dose of psilocybin under double-blind conditions. At the end of the inpatient phase, participants will be discharged to complete the 8-week outpatient phase, during which participants will undergo visits at 1, 2, 3, 4, 6, and 8 weeks post-dosing session for monitoring of adverse events, clinical status, treatment adherence, and to receive a weekly supply of buprenorphine. All buprenorphine procedures will be open label and will follow standard-of-care practices.
This trial utilizes a Bayesian sequential methodology, employing a maximum sample size of 90 participants and calculating Bayes factors (starting at 20 participants and assessed after each 10) to assess evidence for the null and experimental hypotheses, enabling potential early stopping for efficacy or futility based on predetermined thresholds (Bayes factor of 6 and 1/6). This will be calculated for the primary outcome of opioid abstinence at 8-weeks
- Conditions
- Opioid Use Disorder
- Being tested
- Psilocybin
- Medical subject headings
- Opioid-Related Disorders
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
PsilocybinDrug
Also called Buprenorphine
The proposed study is a double-blind, controlled investigation of the effect of 1 high-dose psilocybin (30 mg) session compared to a very low dose session (1 mg) following standard-of-care buprenorphine induction on drug abstinence, quality of life, craving, tobacco use, and treatment retention in healthy participants with an active OUD diagnosis
| Study group | Role | What they receive |
|---|---|---|
| High-dose psilocybin + buprenorphine | Experimental | High-dose psilocybin (30 mg) session following standard-of-care buprenorphine induction Receives: Drug: Psilocybin |
| Very low-dose psilocybin + buprenorphine | Active comparator | Very low dose psilocybin session (1 mg) following standard-of-care buprenorphine induction Receives: Drug: Psilocybin |
What is being measured
The primary outcome is the main question the study is designed to answer.
Opioid Abstinence
Non-buprenorphine opioid abstinence as verified by urine toxicology at each visit and Timeline Follow Back (TLFB). These will be combined to assess opioid abstinence for each participant. These will be assessed at the 8-week timepoint for the previous 3-weeks. Missing values will be presumed positive.
Timeline Follow Back (TLFB) for Opioids: This is a self-report of drug use per day. This procedure asks participants to retrospectively quantitate their use of drugs. Greater numbers indicate more days using a substance, smaller numbers or zeros mean less or no days using a substance
Urine toxicology: Urine samples will be collected at each study visit and screened broadly for illicit drug use including opioids via an outside medical laboratory. Quantitative buprenorphine levels will also be collected following induction to gauge whether buprenorphine is being taken.
These measurements will be combined to report the number of participants who were abstinent from opioids.
Measured: up to 8 weeks
Treatment Retention
Treatment retention at 8 weeks, as indicated by participants making all follow-up visits, indicating they are taking buprenorphine and with urine toxicology positive for buprenorphine.
Measured: 8 weeks
Number of Days Illicit Opioids Used
Number of Days Illicit Opioids Used, as indicated by participant self-report and urine toxicology results
Measured: 8 weeks
Number of Negative Urine Toxicologies
Number of Negative Urine Toxicologies, as indicated by results from weekly urine toxicologies collected for eight weeks
Measured: weekly up to 8 weeks
Secondary outcomes (4)
Quality of Life as assessed by the World Health Organization Quality of Life-BREF (WHOQOL-BREF)
World Health Organization Quality of Life-BREF. The WHOQOL produces a multi-dimensional profile of scores across six domains and 24 sub-domains of quality of life, with higher scores representing a greater reported quality of life.
Measured: 8 weeks
Depression as assessed by the Beck Depression Inventory II (BDII)
The Beck Depression Inventory is a multi-item assessment for depression. Scores of 0-10 are considered within normal range, with higher scores representing worsening reported depression.
Measured: 8 weeks
Anxiety as assessed by the State-Trait Anxiety Inventory (STAI)
The State-Trait Anxiety Inventory is a 40-item assessment of state and trait characteristics, with higher scores (more positive items) representing greater severity of mental states such as apprehension, tension, nervousness, and worry.
Measured: 8 weeks
Number of Participants Abstinent from Other Drug Substances
Abstinence from other substances will be measured by combining TLFB and urine toxicology results to report the number of participants who were abstinent from other drug substances
Measured: 8 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted22 Aug 2023
- Study startApr 2027 (estimated)
- Primary completionJul 2028 (estimated)
- Study completionJul 2028 (estimated)
Why it stopped: This study was de-prioritized in favor of the similar BIPOD-Out protocol due to a combination of practical considerations and expense. There are currently no plans to initiate this protocol.
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Opioid Use DisorderStudies of the same condition, open and under way.
- More trials run by Johns Hopkins UniversityThe sponsor's other registered studies.
- 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 2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- The proposed study is a double-blind, controlled investigation of the effect of 1 high-dose psilocybin (30 mg) session compared to a very low dose session (1 mg) following standard-of-care buprenorphine induction
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 0 participants (actual)
Sponsor and investigators
- Lead sponsor
- Johns Hopkins University
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Sandeep Nayak, MD, Principal investigator, Johns Hopkins School of Medicine
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06005662
- Sponsor's protocol ID
- IRB00344281
- Acronym
- BIPOD-In
- Status last verified
- Feb 2026
- First submitted
- 15 Aug 2023
- Last updated
- 23 Feb 2026
- Results posted
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 23 Feb 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Inpatient Buprenorphine Induction With Psilocybin for Opioid Use Disorder: a Randomized Double-blind Trial
- ClinicalTrials.gov ID
- NCT06005662
- Acronym / sponsor ID
- BIPOD-In / IRB00344281
- Conditions
- Opioid Use Disorder
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- WithdrawnReason stopped: This study was de-prioritized in favor of the similar BIPOD-Out protocol due to a combination of practical considerations and expense. There are currently no plans to initiate this protocol.
- Enrolment
- 0 participants (actual)
- Lead sponsor
- Johns Hopkins UniversityUniversity, hospital or other
- Study start
- Apr 2027 (estimated)
- Primary completion
- Jul 2028 (estimated)
- Study completion
- Jul 2028 (estimated)
- First posted
- 22 Aug 2023 (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.
This study will examine the effect of a single high dose of psilocybin therapy (30 mg) versus a very low dose (1 mg) as an adjunctive therapy to individuals undergoing standard-of-care buprenorphine treatment for Opioid use disorder (OUD). Effects of adjunctive psilocybin will be determined for longitudinal outcomes of opioid abstinence, compliance with buprenorphine maintenance, quality of life, and mood.
Detailed description
The proposed study is a double-blind, controlled investigation of the effect of 1 high-dose psilocybin (30 mg) session compared to a very low dose session (1 mg) following standard-of-care buprenorphine induction on drug abstinence, quality of life, craving, tobacco use, and treatment retention in healthy participants with an active OUD diagnosis. Use of buprenorphine follow standard of care, and the investigators are investigating the additive power of adjunctive psilocybin to enhance opioid abstinence, treatment adherence, quality of life, and mood.
The study will consist of a brief (6-8 day) inpatient phase for standard buprenorphine induction as well as experimental psilocybin administration, an 8-week outpatient phase involving standard buprenorphine maintenance and experimental follow-up meetings, and long-term follow-up sessions for 4 months after. During the inpatient phase, participants will be inducted onto sublingual (SL) buprenorphine (using a buprenorphine/naloxone combination product) while admitted to the Bayview Clinical Research Unit. During this time, participants will also undergo 2-3 preparatory sessions, and will undergo an experimental drug administration session under supportive conditions, during which the participants will receive either a very low dose (1 mg) or a single high (30mg) oral dose of psilocybin under double-blind conditions. At the end of the inpatient phase, participants will be discharged to complete the 8-week outpatient phase, during which participants will undergo visits at 1, 2, 3, 4, 6, and 8 weeks post-dosing session for monitoring of adverse events, clinical status, treatment adherence, and to receive a weekly supply of buprenorphine. All buprenorphine procedures will be open label and will follow standard-of-care practices.
This trial utilizes a Bayesian sequential methodology, employing a maximum sample size of 90 participants and calculating Bayes factors (starting at 20 participants and assessed after each 10) to assess evidence for the null and experimental hypotheses, enabling potential early stopping for efficacy or futility based on predetermined thresholds (Bayes factor of 6 and 1/6). This will be calculated for the primary outcome of opioid abstinence at 8-weeks
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
- Model description
- The proposed study is a double-blind, controlled investigation of the effect of 1 high-dose psilocybin (30 mg) session compared to a very low dose session (1 mg) following standard-of-care buprenorphine induction
| Arm | Type | Receives |
|---|---|---|
| High-dose psilocybin + buprenorphine | Experimental | Drug: PsilocybinHigh-dose psilocybin (30 mg) session following standard-of-care buprenorphine induction |
| Very low-dose psilocybin + buprenorphine | Active comparator | Drug: PsilocybinVery low dose psilocybin session (1 mg) following standard-of-care buprenorphine induction |
Who may qualify
- Ages
- 21 to 70 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (11 listed)
- Age 21-70 years
- Have given written informed consent
- Meet diagnostic criteria for OUD
- No antidepressant medications for approximately 5 half-lives prior to enrollment
- Not currently taking methadone, buprenorphine or naltrexone
Key exclusion criteria (19 listed)
- Women who are pregnant, nursing, or not practicing an effective means of birth control
- Cardiovascular conditions: hypertension with resting blood pressure systolic >139 or diastolic >89, angina, heart rate > 99, a clinically significant electrocardiogram abnormality (e.g., atrial fibrillation), Transient Ischemic Attack or Stroke in the last 6 months, peripheral or pulmonary vascular disease, cardiac valvulopathy
- Epilepsy
- Insulin-dependent diabetes; if taking oral hypoglycemic agent, then no history of hypoglycemia
- Currently taking on a daily basis any medications (including herbal substances and supplements) with a central nervous system effect on serotonin, including serotonin-reuptake inhibitors and monoamine oxidase inhibitors.
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: BuprenorphineThe proposed study is a double-blind, controlled investigation of the effect of 1 high-dose psilocybin (30 mg) session compared to a very low dose session (1 mg) following standard-of-care buprenorphine induction on drug abstinence, quality of life, craving, tobacco use, and treatment retention in healthy participants with an active OUD diagnosis | Drug | High-dose psilocybin + buprenorphine, Very low-dose psilocybin + buprenorphine |
Primary outcome
Opioid Abstinence
Time frame: up to 8 weeks
Non-buprenorphine opioid abstinence as verified by urine toxicology at each visit and Timeline Follow Back (TLFB). These will be combined to assess opioid abstinence for each participant. These will be assessed at the 8-week timepoint for the previous 3-weeks. Missing values will be presumed positive. Timeline Follow Back (TLFB) for Opioids: This is a self-report of drug use per day. This procedure asks participants to retrospectively quantitate their use of drugs. Greater numbers indicate more days using a substance, smaller numbers or zeros mean less or no days using a substance Urine toxicology: Urine samples will be collected at each study visit and screened broadly for illicit drug use including opioids via an outside medical laboratory. Quantitative buprenorphine levels will also be collected following induction to gauge whether buprenorphine is being taken. These measurements will be combined to report the number of participants who were abstinent from opioids.
Treatment Retention
Time frame: 8 weeks
Treatment retention at 8 weeks, as indicated by participants making all follow-up visits, indicating they are taking buprenorphine and with urine toxicology positive for buprenorphine.
Number of Days Illicit Opioids Used
Time frame: 8 weeks
Number of Days Illicit Opioids Used, as indicated by participant self-report and urine toxicology results
Number of Negative Urine Toxicologies
Time frame: weekly up to 8 weeks
Number of Negative Urine Toxicologies, as indicated by results from weekly urine toxicologies collected for eight weeks
4 secondary outcomes
Quality of Life as assessed by the World Health Organization Quality of Life-BREF (WHOQOL-BREF)
Time frame: 8 weeks
Depression as assessed by the Beck Depression Inventory II (BDII)
Time frame: 8 weeks
Anxiety as assessed by the State-Trait Anxiety Inventory (STAI)
Time frame: 8 weeks
Number of Participants Abstinent from Other Drug Substances
Time frame: 8 weeks
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 23 Feb 2026.
- Individual participant dataSharing planned: No
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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.
Sandeep Nayak, MD principal investigator
Johns Hopkins School of Medicine
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing Psilocybin in people with Opioid Use Disorder, run by Johns Hopkins University 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 11 inclusion and 19 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 23 Feb 2026. 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.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
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?
Opioid Abstinence (time frame: up to 8 weeks). The study lists 4 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 23 Feb 2026.