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Treatment of major depressive disorder and treatment resistant depression with 5-MeO-DMT: Impact of 25 years of non-traditional public scientific communication and education on clinical development and commercialization

Juliet Meccia, David Casimir, Sisi Li, Shahin Shams, Thomas A. Isenbarger, Mark Seelig

Psychedelics April 25, 2026 DOI: 10.1016/j.psyche.2026.100019 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Review Peer reviewed
Population Depression
Intervention 5-MeO-DMT
Topics Depression 5-MeO-DMT DMT
Keywords Mainstream Commercialization Grassroots Public health Clinical trial Indigenous Alternative medicine Public relations Depression economics Scientific evidence Risk communication
Key findings Informal and underground use of 5-MeO-DMT has generated substantial knowledge about alleviating depressive symptoms, but communication gaps hinder its integration into mainstream psychiatry.

Abstract

Over the past 25 years, the use of 5-MeO-DMT in informal and underground settings has contributed a substantial, yet underrecognized, body of knowledge relating to the efficacy of 5-MeO-DMT in alleviating depressive symptoms. Traditional models of drug development, typically characterized by structured trials and regulatory milestones, rarely consider findings from these alternative routes. The legal and regulatory barriers surrounding psychedelic compounds have delayed formal clinical investigation, while public channels and Indigenous knowledge have driven grassroots support and anecdotal evidence of therapeutic benefit. This article identifies critical communication gaps hindering the integration of 5-MeO-DMT into mainstream psychiatry, advocating for transparent data-sharing models that incorporate existing informal knowledge.

In the evidence

This study is part of the evidence base for a synthesis in the library. Here is how each one recorded it.

  • Informal and underground use of 5-MeO-DMT has generated substantial knowledge about alleviating depressive symptoms, but communication gaps hinder its integration into mainstream psychiatry.

    Synthesized

Comparable studies

Other narrative reviews on DMT for depression, most cited first.

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