Evidence map›Paper›PMID 40258990›Full record

Trial reportNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology2025

Rapid and sustained antidepressant effects of vaporized N,N-dimethyltryptamine: a phase 2a clinical trial in treatment-resistant depression.

Marcelo Falchi-Carvalho, Fernanda Palhano-Fontes, Isabel Wießner, Handersson Barros, Raynara Bolcont, Sophie Laborde, Sérgio Ruschi B Silva, Daniel Montanini, David C Barbosa, Ewerton Teixeira and 14 more

Abstract readClinical Trial, Phase II
In one paragraph

Trial report in Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
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

19 citing papers in PubMed.

  1. Trial
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  4. Article
  5. Article
  6. Psychedelics produce enduring enhancement of reward responsiveness in male rats.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Article
  7. Registered Clinical Trials of Ayahuasca and DMT: A Scoping Review.Clinical pharmacology and therapeutics · 2026
    Article
  8. Review
  9. Review
  10. Article
  11. Review
  12. Article
  13. Psychedelic therapy and postpartum depression: priorities and prospects.Therapeutic advances in psychopharmacology · 2026
    Review
  14. Article
  15. "Awe-scillations": EEG spectral and complexity representations of awe.bioRxiv : the preprint server for biology · 2025
    Article
  16. Article
  17. Concomitant use of antidepressants and classic psychedelics: A scoping review.Journal of psychopharmacology (Oxford, England) · 2025
    Article
  18. Article
  19. Less is more? Antidepressant effects of short-acting psychedelics.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2025
    Article
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

24 authors.

Marcelo Falchi-Carvalho *Center for Advanced Medical Psychedelics (CAMP), Natal, Rio Grande do Norte, Brazil.ORCID http://orcid.org/0000-0002-7407-880X
Fernanda Palhano-Fontes *Center for Advanced Medical Psychedelics (CAMP), Natal, Rio Grande do Norte, Brazil. fernandapalhano@neuro.ufrn.br.ORCID http://orcid.org/0000-0002-1612-6703
Isabel WießnerCenter for Advanced Medical Psychedelics (CAMP), Natal, Rio Grande do Norte, Brazil.
Handersson BarrosCenter for Advanced Medical Psychedelics (CAMP), Natal, Rio Grande do Norte, Brazil.
Raynara BolcontCenter for Advanced Medical Psychedelics (CAMP), Natal, Rio Grande do Norte, Brazil.
Sophie LabordeCenter for Advanced Medical Psychedelics (CAMP), Natal, Rio Grande do Norte, Brazil.ORCID http://orcid.org/0009-0000-0192-713X
Sérgio Ruschi B SilvaCenter for Advanced Medical Psychedelics (CAMP), Natal, Rio Grande do Norte, Brazil.ORCID http://orcid.org/0000-0003-0677-0439
Daniel MontaniniCenter for Advanced Medical Psychedelics (CAMP), Natal, Rio Grande do Norte, Brazil.
David C BarbosaCenter for Advanced Medical Psychedelics (CAMP), Natal, Rio Grande do Norte, Brazil.ORCID http://orcid.org/0009-0005-3947-577X
Ewerton TeixeiraCenter for Advanced Medical Psychedelics (CAMP), Natal, Rio Grande do Norte, Brazil.
Rodrigo Florence-VilelaCenter for Advanced Medical Psychedelics (CAMP), Natal, Rio Grande do Norte, Brazil.
Raissa AlmeidaCenter for Advanced Medical Psychedelics (CAMP), Natal, Rio Grande do Norte, Brazil.
Rosana K A de MacedoCenter for Advanced Medical Psychedelics (CAMP), Natal, Rio Grande do Norte, Brazil.
Flávia ArichelleCenter for Advanced Medical Psychedelics (CAMP), Natal, Rio Grande do Norte, Brazil.
Érica J PantrigoCenter for Advanced Medical Psychedelics (CAMP), Natal, Rio Grande do Norte, Brazil.
José V Costa-MacedoCenter for Advanced Medical Psychedelics (CAMP), Natal, Rio Grande do Norte, Brazil.
João Arthur da Cruz NunesCenter for Advanced Medical Psychedelics (CAMP), Natal, Rio Grande do Norte, Brazil.
Luiz Antonio de Araújo Costa NetoCenter for Advanced Medical Psychedelics (CAMP), Natal, Rio Grande do Norte, Brazil.
Luis Fernando Nunes FerreiraCenter for Advanced Medical Psychedelics (CAMP), Natal, Rio Grande do Norte, Brazil.
Luísa Dantas CorrêaCenter for Advanced Medical Psychedelics (CAMP), Natal, Rio Grande do Norte, Brazil.
Romária Bárbara da Costa BezerraCenter for Advanced Medical Psychedelics (CAMP), Natal, Rio Grande do Norte, Brazil.
Emerson ArcoverdeDepartment of Clinical Medicine, Health Science Center, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil.
Nicole Galvão-CoelhoCenter for Advanced Medical Psychedelics (CAMP), Natal, Rio Grande do Norte, Brazil.ORCID http://orcid.org/0000-0002-4887-8635
Draulio B AraujoCenter for Advanced Medical Psychedelics (CAMP), Natal, Rio Grande do Norte, Brazil. draulio@neuro.ufrn.br.ORCID http://orcid.org/0000-0002-6934-2485

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Depression affects over 185 million people worldwide, with approximately one-third classified as treatment-resistant depression (TRD). Current treatments, such as oral antidepressants, often take around 3 weeks to become effective, with no immediate anti-suicidal benefits. The field urgently needs innovative therapies that provide rapid relief. Psychedelics like psilocybin and ayahuasca have shown promising antidepressant effects; however, their long duration (several hours) makes them costly and impractical for public health systems. N,N-Dimethyltryptamine (DMT), an endogenous psychedelic also found in ayahuasca, offers a viable alternative with a short duration of action (10-20 min) and non-invasive inhalation administration. Unlike ayahuasca, which contains monoamine oxidase inhibitors, vaporized DMT acts quickly and poses fewer pharmacological interaction risks. This open-label trial evaluated inhaled DMT for TRD for the first time, within the framework of interventional psychiatry. Fourteen patients (N

Indexed as

Antidepressive AgentsDepressive Disorder, Treatment-ResistantN,N-DimethyltryptamineAdministration, InhalationAdultAgedFemaleHumansMaleMiddle AgedTreatment OutcomeAntidepressive AgentsN,N-Dimethyltryptamine

Identifiers

PMID40258990
PMCPMC12032144

What Socratic 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 Socratic graph.