Pilot Study on the Effects of Psilocybin on Belief Updating and Insight Formation
Public ClinicalTrials.gov record NCT07818564. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The primary aim of this phase I mechanistic pilot study is to evaluate the effects of psilocybin on aspects of cognition in healthy adult volunteers. Up to 24 participants will receive a single dose of either psilocybin or inert placebo, and they will be asked to complete several computer-based behavioral tasks measuring features of learning, belief updating, and abstraction. Participants will also complete measures of subjective experience and expectancy, as well as semi-structured interviews at follow up, to assess whether experience correlates with behavior. This is a Voluntary Submission.
Study identification
- NCT ID
- NCT07818564
- Recruitment status
- Not yet recruiting
- Study type
- Interventional
- Phase
- Phase 1
- Enrollment
- 24 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Oct 31, 2026
- Primary completion
- Oct 31, 2027
- Completion
- Oct 31, 2027
- Last update posted
- Sep 13, 2026
2026 – 2027
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Brown University School of Public Health | Providence | Rhode Island | 02903 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Recently updated Phase I trials
Other public records listing Phase I. Sorted by last update posted; newest first. Not a recommendation.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT07818564, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Sep 13, 2026 · Synced Sep 15, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT07818564 live on ClinicalTrials.gov.