Selecting the optimal dose of psilocybin for treating Major Depressive Disorder (MDD) and Treatment-Resistant Depression (TRD) is crucial for clinical development and regulatory approval. This meta-analysis evaluates psilocybin's efficacy and safety in treating MDD to determine the optimal dose and timing for clinical trials. A systematic review and Dose-Res...
This secondary analysis of a randomized clinical trial examines the association between treatment expectancies and the relative efficacy of psilocybin compared with escitalopram for major depressive disorder.
The individual efficacy and safety of intravenous racemic (IV) ketamine, psilocybin, and theta burst stimulation (TBS) for major depressive disorder have been demonstrated through meta-analyses of randomized controlled trials (RCTs), but the comparative usefulness of these novel treatments has not yet been fully examined. We systematically searched the CENTR...
IntroductionThere is growing interest in the use of psychedelic-assisted therapy (PAT) for major depressive disorder (MDD), including treatment-resistant depression. We used randomized controlled trial (RCT) data to compare summary estimates of change in depression ratings with PAT versus comparator treatments in MDD. We also compared response and remission ...
Purpose of reviewIn this narrative review, we discuss evidence for psilocybin- and LSD-assisted treatment of alcohol use disorder (AUD) and major depressive disorder (MDD). We describe limitations of psychedelic research and posit methodological considerations when designing a trial in patients with both disorders.Recent findingsIn AUD, a growing evidence ba...
Background: Bipolar II disorder (BD-II) is often associated with chronic and treatment resistant major depressive episodes. Psilocybin has shown promise for its rapid-acting antidepressant effects, though its impact on bipolar depression remains unexplored. In the present subgroup analysis of an already published trial on treatment-resistant depression (TRD)...
Psychedelic-assisted therapy is becoming increasingly acknowledged as an effective therapeutic intervention for various psychiatric illnesses. However, the evaluation of masking success is rarely reported in trials. The objective of the present systematic review was to evaluate placebo-control and masking in studies exploring psychedelic-assisted therapy. Ni...
In visual perception, an effect known as surround suppression occurs wherein the apparent contrast of a center stimulus is reduced when it is presented within a higher-contrast surrounding stimulus. Many key aspects of visual perception involve surround suppression, yet the neuromodulatory processes involved remain unclear. Psilocybin is a serotonergic psych...
Background: Due to the unsatisfactory therapeutic effects of current antidepressants, research has been launched into alternative treatment approaches, such as the administration of psychedelics. Psilocybin, a classic hallucinogen, has been shown to exert considerable positive influence on depression symptoms through its serotonergic and glutamatergic effect...
This is a randomised double-blind clinical trial. The aim is to compare the efficacy and mechanisms of action of psilocybin, the primary psychoactive substance in 'magic mushrooms', with the selective serotonin reuptake inhibitor (SSRI) escitalopram for major depressive disorder (MDD).
This study is an open-label, single-arm, proof-of-concept study, wherein treatment resistant bipolar depression (TRBD) participants will receive one 25 mg dose of oral psilocybin accompanied by preparatory, monitoring, and integration psychotherapy sessions (psilocybin-assisted psychotherapy, or PAP). Using fMRI (functional magnetic resonance imaging), the f...
Anorexia nervosa (AN) is a serious eating disorder (ED) with high rates of mortality and chronicity. Given the ambivalence towards engaging in treatment and recovery that is characteristic of this condition, the identification of novel treatment avenues that can target motivation and demonstrate superior efficacy to existing treatment options is desperately ...
Abstract Ketamine and psilocybin show potential as therapies for various mental illnesses, including major depressive disorder. However, further investigation into their neural mechanisms is required to understand their effects on the brain. By combining computational modelling with electroencephalography (EEG), we examine the effects of ketamine and psilocy...
ObjectivesThe purpose of this systematic review of randomized controlled trials (RCTs) was to evaluate the effectiveness, safety, and tolerability of psilocybin in adult patients with major depressive disorder (MDD).MethodsA systematic search (up to September 14, 2023) was conducted for RCTs that examined the efficacy, safety, and tolerability of psilocybin ...
Background: Psilocybin therapy (PT) produces rapid and persistent antidepressant effects in major depressive disorder (MDD). However, the long-term effects of PT have never been compared with gold-standard treatments for MDD such as pharmacotherapy or psychotherapy alone or in combination. Methods: This is a 6-month follow-up study of a phase 2, double-blind...
This study aims to estimate the lower, middle, and upper bounds of potential demand for psilocybin-assisted therapy (PSIL-AT) for major depressive disorder (MDD) and treatment-resistant depression (TRD) in the United States. We calculated potential PSIL-AT demand for MDD and TRD by estimating the number of U.S. patients with MDD, identifying those in treatme...
