Summary: Psychedelic drugs, notably psilocybin found in “magic mushrooms,” are under the spotlight for their potential to treat various mental health disorders. Recent studies reveal promising outcomes using psilocybin for major depressive disorder (MDD) and treatment-resistant depression (TRD).
The therapeutic efficacy seems tied to intense emotional experiences and enhanced psychological flexibility that psilocybin induces. While the promise is undeniable, significant clinical, legal, and research challenges remain.
Key Facts:
Source: Wolters Kluwer Health
A growing body of evidence suggests that psychedelic drugs may be useful in treating various mental health conditions. However, many challenges remain in defining their clinical benefits and overcoming the complex regulatory obstacles to their use.
The September issue of Journal of Psychiatric Practice presents a research review and update on therapeutic use of psychedelics – focusing on the use of psilocybin for treatment of depression.
“At a time of growing excitement regarding the potential use of psychedelic agents to improve outcomes of otherwise intractable disorders, psychiatrists and patients alike need perspective on the current state of the evidence and the prospects moving forward,” comments lead author Amir Garakani, MD, of Greenwich Hospital, Greenwich, Conn., and the Department of Psychiatry at the Yale School of Medicine, New Haven, Conn.
“In this article, members of the Psychopharmacology Committee of the Group for the Advancement of Psychiatry and consultants discuss current research findings to provide guidance to clinicians concerning the prospects for psilocybin treatment for their patients struggling with debilitating depression.”
The psychedelic experience – how does psilocybin affect the brain?
Psilocybin is a naturally occurring psychedelic substance found in so-called “magic mushrooms.” Many recent clinical trials have reported positive effects of psilocybin in treating psychiatric disorders, including major depressive disorder (MDD) and treatment-resistant depression (TRD).
Evidence suggests that therapeutic responses to psilocybin “stem from, or at least go hand-in-hand with, an intense emotional or mystical experience,” Dr. Garakani and colleagues write.
Studies suggest that psilocybin leads to increased “openness to experience” and psychological flexibility – enabling patients to “reconsider stereotyped perspectives and move beyond accustomed patterns of thinking.”
Research into psilocybin’s biological effects suggest increased activity between brain networks, without corresponding increases within single networks. Greater changes in brain network flexibility have been linked to lasting reductions in depression symptoms six months later.
Clinical trials show progress – but research questions and regulatory issues remain
To date, all psilocybin treatment studies have included a psychotherapy component, including preparation, dosing, and integration phases. In integration sessions, “Participants are encouraged to share their experiences, with the goal of helping them generate insights, and facilitating behavioral change,” according to the authors.
Various dosing strategies are being evaluated in academic and commercial settings. These studies follow highly controlled protocols in carefully selected populations, with special attention to maximizing patient safety during the psychedelic experience.
Clinical trial registries show a “multitude” of studies planned or in progress, targeting MDD, TRD, and other conditions such as cancer-related anxiety and post-traumatic stress disorder.
“The large number and wide-ranging scope of ongoing and future psilocybin trials not only show the interest in this drug in the scientific community but also the potential therapeutic role of psychedelics across diagnoses and clinical domains,” the researchers write.
Earlier this year, the Australian regulatory agency announced approval for psychiatrists to prescribe psilocybin treatment for TRD.
In the United States, psilocybin has been designated as a “breakthrough therapy” for TRD and MDD. While two states have legalized or decriminalized psilocybin (Oregon and Colorado, respectively), it remains a Schedule 1 controlled substance under federal law.
An official American Psychiatric Association position states that there is “currently inadequate scientific evidence” to endorse the use of psychedelics for treatment of any psychiatric disorder, outside of approved research studies.
Nevertheless, “The research evidence presented here offers further support for the potential of psychedelics in mental health care,” Dr. Garakani and colleagues conclude.
“Psilocybin has demonstrated promise as a novel therapeutic and offers new perspectives on the function and dysfunction of the brain,” according to the authors. However, they add: “
It remains to be seen if the current clinical, legal, and research landscapes will allow delivery on that promise.”
Author: Josh DeStefano
Source: Wolters Kluwer Health
Contact: Josh DeStefano – Wolters Kluwer Health
Image: The image is credited to Neuroscience News
Original Research: Open access.
“Psychedelics, With a Focus on Psilocybin: Issues for the Clinician” by Amir Garakani et al. Journal of Psychiatric Practice
Abstract
Psychedelics, With a Focus on Psilocybin: Issues for the Clinician
There has been a burgeoning interest in psychedelics among the public, state legislatures, psychiatrists and other clinical providers, and within the research community.
Increasing numbers of studies evaluating psychedelics for depression, anxiety, posttraumatic stress disorder, and substance use disorders have been conducted or are underway.
While discussing psychedelics in general, the focus of this paper is on psilocybin and its mechanism, how it exerts a psychedelic effect, dosing, and a review of the treatment studies of psilocybin, which were primarily for treatment-resistant depression and cancer-related anxiety.
Future directions and potential limitations of studying and regulating psilocybin and other psychedelics are also discussed.
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Psilocybin and Mental Health: A Glimpse into Psychedelic Therapeutics – Neuroscience News
