CI

At a glance

ClinicalIndex Comparison Record
Phase 2Completed· 35 enrolled
Drug / intervention
Ayahuasca +1 moredrug
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT02914769
NCT02914769Phase 2Completed

Antidepressant Effects of Ayahuasca: a Randomized Placebo Controlled Trial in Treatment Resistant Depression

Universidade Federal do Rio Grande do Norte·interventional·Posted Sep 26, 2016·Updated Apr 6, 2025

In Brief

A Phase 2 clinical trial evaluating Ayahuasca and placebo for Major Depression. Completed, enrolled 35 participants across 1 site.

Detailed Summary

The purpose of the present trial is to test the efficacy of Ayahuasca in treatment-resistant depression. Ayahuasca is a decoction of two plants, long used by Amazonian Amerindians. Traditionally, it is prepared by decoction of a bush (Psychotria viridis) with a liana (Banisteriopsis caapi). P. viridis is a rich source of N,N-dimethyltryptamine (DMT), a serotonergic agonist, and B. caapi contains potent monoamine oxidase-A inhibitors (MAOi-A), such as harmine, harmaline. The study is designed as a randomized placebo controlled trial with two parallel arms, and it will also evaluate changes of different biomarkers of depression including anatomical and functional Magnetic Resonance Imaging (MRI), serum levels of BDNF, TNF-a, cortisol, IL-6, and IL-10, polysomnography, neuropsychological, psychiatric scales and questionnaires.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesBrazil

Timeline

Phase 2CompletedFinished
2014201520162017201820192020202120222023202420252026
First PostedSep 26, 2016
Enrollment StartFeb 1, 2014
Primary CompletionDec 1, 2016
TodayJul 2, 2026
Enrollment to primary: 2.8 yearsPosted 9.8 years ago

Interventions

Ayahuascadrug

patients will receive a single dose of ayahuasca.

placebodrug

patients will receive a single dose of a passive placebo.