Psilocybin, a serotonin receptor agonist in the brain, significantly and quickly improves depressive symptoms while inducing profound acute subjective effects. The benefit-risk ratio of psilocybin in treatment-resistant depression seems favorable, but needs to be confirmed. Moreover, the role of 5-HT2A receptors, involved in the psychedelic experience, on th...
Psilocybin, an indoleamine alkaloid derived from various fungal species, is the subject of renewed, rigorous investigation for its therapeutic potential in psychiatry. This compound, a prodrug for the active metabolite psilocin, functions primarily as a partial agonist at the serotonin 2A (5-HT2A) receptor. Its administration within a structured psychotherap...
BACKGROUND: In recent years, there has been a resurgence of scientific interest in psychedelics, including psilocybin, for their potential in treating neuropsychiatric disorders. However, the reward-related effects of psilocybin and its impact on behavior remain underexplored. AIMS: We aimed to evaluate the potential rewarding effects of high doses of psiloc...
BACKGROUND & AIMS: There are few effective treatments for methamphetamine use disorder, despite increasing global demand. Here, we assessed the safety and feasibility of outpatient psilocybin-assisted psychotherapy for methamphetamine use disorder. DESIGN: Single arm, open label pilot study. SETTING: Outpatient public stimulant treatment program at St. Vince...
Supplement 1. Additional tables presenting primary and secondary outcomes, sensitivity analyses, and exploratory findings. Table A1. ITT analyses for QIDS-SR-16 and MBI-HSS-MP. Table A2. Adjusted ITT analyses for QIDS-SR-16 and MBI-HSS-MP. Table B1. Intent-To-Treat (ITT) Analysis for Demoralization Scale (DSII) and PTSD Checklist for DSM-5 (PCL-5). Table B2....
BACKGROUND: Depression and burnout, which are common among healthcare workers, were exacerbated by the COVID-19 pandemic. Mindfulness-Based Stress Reduction (MBSR) and psilocybin have been reported to reduce depressive symptoms, but the efficacy of the combination requires comparison to an active treatment control. We sought to evaluate the safety and prelim...
Classic psychedelics are increasingly studied as potential treatments for different psychiatric disorders. Current research protocols often require patients to discontinue antidepressants (ADs) for at least 2 weeks before psychedelic administration to decrease the risk of serotonin syndrome and limit their effect on efficacy and the acute subjective effects ...
About one in three people with major depression respond poorly to standard antidepressant treatments. This kind of depression is called treatment-resistant depression, and it can lead to long-term disability, financial challenges, and a higher risk of suicide. Psilocybin-a compound found in certain mushrooms-has shown early promise as a new treatment for thi...
OBJECTIVE: Due to the boom in the use of certain psychedelics in different neuropsychiatric conditions, the objective was to synthesize the available information on the use of psilocybin (a psychedelic) in the population with autism spectrum disorder (ASD; a developmental neuropsychiatric condition). METHODS: Scoping review. Question framework: Population: p...
Background: Depressive disorders are a major global health challenge, with many individuals unresponsive to existing treatments. Novel psychedelic therapies show promise but require further research. Objectives: This study aimed to evaluate the feasibility, safety and effectiveness of psilocybin with psychotherapeutic support for treatment-resistant depressi...
Background: Post-traumatic stress disorder (PTSD) is a debilitating condition for which there are few efficacious treatments. Psilocybin is being studied for use in treatment-resistant depression but has not yet been investigated in PTSD. Aims: The trial’s primary outcome was to investigate the safety and tolerability of single-dose psilocybin in participant...
Importance Depression is a major cause of disability worldwide, motivating substantial interest in psilocybin as a potential treatment. Objective To conduct a systematic review and meta-analysis of psilocybin’s impact on depressive symptoms and provide a living open data resource. Data Sources PubMed, Embase, Scopus, Web of Science, and PsycINFO retrieved by...
IMPORTANCE: Psilocybin-assisted psychotherapy may offer a novel approach to treating depression, anxiety, and existential distress in individuals with life threatening illnesses, where current treatments show limited efficacy. OBJECTIVE: To evaluate the efficacy and safety of psilocybin-assisted psychotherapy versus active placebo and psychotherapy in adults...
Psychedelics, derived from the Greek words "psyche" (soul) and "deloun" (revealing), are substances historically and currently considered "soul-revealing". Also termed hallucinogens due to their impact on sensory perception, they are further categorized into hallucinogens, such as lysergic acid diethylamide (LSD), psilocybin, and mescaline; entactogens or em...
In previous clinical trial work, the investigators observed lasting reductions in headache burden after limited dosing of psilocybin. This purpose of this study is to examine potential sources for this observed effect. This study will measure brain resting state functional connectivity (fMRI), central synaptic density (SV2A PET), peripheral markers of inflam...
BACKGROUND AND AIMS: Psilocybin has emerged as a potential treatment for alcohol use disorder (AUD), but early efficacy data are inconsistent. Depression following alcohol detoxification significantly increases the risk of relapse. This pilot study aimed to evaluate the feasibility, acceptability, and preliminary efficacy of psilocybin-assisted psychotherapy...
Perception of visual contrast depends on the surrounding spatial context. Typically, the salience of a central target is reduced by a high contrast surrounding stimulus, an effect known as surround suppression. Although this phenomenon is well-studied, the role of specific neurotransmitter systems during surround suppression in human vision remains unclear. ...
Recent advancements in the study of psilocybin and its active metabolite psilocin have highlighted their unique psychedelic properties and potential therapeutic applications, particularly in the rapid and sustained treatment of depression. However, the potent acute psychedelic effects of psilocybin necessitate a deeper understanding of the neural mechanisms ...