Evidence map›Paper›PMID 33118052›Full record

Trial reportPsychopharmacology2021

Rapid and sustained decreases in suicidality following a single dose of ayahuasca among individuals with recurrent major depressive disorder: results from an open-label trial.

Richard J Zeifman, Nikhita Singhal, Rafael G Dos Santos, Rafael F Sanches, Flávia de Lima Osório, Jaime E C Hallak, Cory R Weissman

Abstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Psychopharmacology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 3 pooled it
4.0field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

35 citing papers in PubMed, 3 syntheses or guidelines pooled it, 76 citations in OpenAlex.

  1. Autism, youth suicide, and psychedelics: A review of the 21st century evidence.Journal of the Chinese Medical Association : JCMA · 2024
    Pooled it
  2. Default Mode Network Modulation by Psychedelics: A Systematic Review.The international journal of neuropsychopharmacology · 2023
    Pooled it
  3. Pooled it
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  11. A Critical View on New and Future Antidepressants.Clinical psychopharmacology and neuroscience : the official scientific journal of the Korean College of Neuropsychopharmacology · 2024
    Review
  12. Review
  13. Article
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  15. Ayahuasca: A review of historical, pharmacological, and therapeutic aspects.PCN reports : psychiatry and clinical neurosciences · 2023
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

Richard J ZeifmanDepartment of Psychology, Ryerson University, 350 Victoria Street, Toronto, ON, Canada. rzeifman@ryerson.ca.ORCID http://orcid.org/0000-0003-3478-4483
Nikhita SinghalDepartment of Psychiatry, University of Toronto, Toronto, ON, Canada.
Rafael G Dos SantosDepartment of Neurosciences and Behavior, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil.
Rafael F SanchesDepartment of Neurosciences and Behavior, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil.
Flávia de Lima OsórioDepartment of Neurosciences and Behavior, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil.
Jaime E C HallakDepartment of Neurosciences and Behavior, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil.
Cory R WeissmanDepartment of Psychiatry, University of Toronto, Toronto, ON, Canada.
Universidade de São Paulo · BRUniversity of Toronto · CAToronto Metropolitan University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationaleSuicidality is a major public health concern with limited treatment options. Accordingly, there is a need for innovative interventions for suicidality. Preliminary evidence indicates that treatment with the psychedelic ayahuasca may lead to decreases in depressive symptoms among individuals with major depressive disorder (MDD). However, there remains limited understanding of whether ayahuasca also leads to reductions in suicidality.

objectiveTo examine the acute and post-acute effect of ayahuasca on suicidality among individuals with MDD.

methodsWe conducted a secondary analysis of an open-label trial in which individuals with recurrent MDD received a single dose of ayahuasca (N = 17). Suicidality was assessed at baseline; during the intervention; and 1, 7, 14, and 21 days after the intervention.

resultsAmong individuals with suicidality at baseline (n = 15), there were significant acute (i.e., 40, 80, 140, and 180 min after administration) and post-acute (1, 7, 14, and 21 days after administration) decreases in suicidality following administration of ayahuasca. Post-acute effect sizes for decreases in suicidality were large (Hedges' g = 1.31-1.75), with the largest effect size 21 days after the intervention (g = 1.75).

conclusionsWhen administered in the appropriate context, ayahuasca may lead to rapid and sustained reductions in suicidality among individuals with MDD. Randomized, double-blind studies with larger sample sizes are needed to confirm this early finding.

Indexed as

AdultBanisteriopsisDrug Administration ScheduleFemaleHallucinogensHumansMajor Depressive DisorderMalePsychiatric Status Rating ScalesRecurrenceSuicide, AttemptedTime FactorsHallucinogensAyahuascaInterventionMajor depressive disorderSuicidality

Identifiers

PMID33118052
OpenAlexW3095307948

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.