Single dose ayahuasca in adults with psychogenic non-epileptic seizures
Official title: Effects of a Sigle Dose of Ayahuasca in Patients With Psychogenic Non-epileptic Seizures: an Open Label Clinical Trial
Run by University of Sao Paulo · NCT07747324 · Data updated 2026-11-12
This open-label study tests whether a single dose of ayahuasca is safe and what effects it has in adults with psychogenic non-epileptic seizures who are under care.
Quick facts
| Phase | Phase1; Phase2 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years to 60 Years |
| Sex | All |
| Enrollment | 15 (estimated) |
| Sponsor | University of Sao Paulo Academic / other |
| Locations | 1 site (Ribeirão Preto, São Paulo) |
| Status | Recruiting |
| Started | July 1, 2026 |
| Main results expected | August 30, 2027 |
| Study ends | August 30, 2027 |
| Registry record updated | August 5, 2026 |
| Trial ID | NCT07747324 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults 18–60 with documented PNES (VEEG-confirmed) and no epilepsy, currently in outpatient follow-up, willing to taper and discontinue certain psychotropic medications.
✕Probably not a fit
Individuals with ongoing active psychotropic treatment that cannot be safely tapered, or with epilepsy, may not experience benefit from this intervention.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This study will administer one dose of ayahuasca to adults aged 18 to 60 with documented PNES and no epilepsy. Participants must gradually reduce and discontinue current psychotropic medications to avoid interactions. The trial is open-label and combines Phase 1 and Phase 2 elements to assess safety and potential clinical effects in an outpatient setting at Ribeirão Preto Medical School, University of Sao Paulo. Outcomes will focus on safety and any changes in seizure frequency or related symptoms. Results may inform future research on psychoactive therapies for PNES.
Why it matters
Potential benefit: If successful, participants may experience improved symptom control or insights into PNES management following the intervention.
How similar studies have gone: Prior research on ayahuasca for PNES or related disorders is limited, making this a novel/early exploratory approach.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Patients aged 18 to 60 with documented PNES (confirmed via VEEG), without a diagnosis of comorbid epilepsy, and currently receiving follow-up care at outpatient clinics. To enroll in the study, patients must undergo a gradual reduction and discontinuation of any psychotropic medications (antidepressants, antipsychotics, benzodiazepines, or mood stabilizers/anticonvulsants) they are currently taking, in order to avoid drug interactions with-or influence on-the effects of ayahuasca. Exclusion Criteria: * Patients who have not experienced psychogenic seizures in the last 3 months; patients diagnosed with epilepsy; patients who refuse to reduce or discontinue their current psychotropic medications; patients with a history of prior ayahuasca use; patients with a history of substance use disorder; patients who refuse to sign the Informed Consent Form; patients with schizophrenia or other psychotic disorders and/or impaired reality testing; and pregnant or breastfeeding women.
Where it's running
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Ribeirão Preto Medical School
Ribeirão Preto, São Paulo, Brazil Recruiting
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.