Prolonged Grief Symptom Outcomes During At-Home Ketamine-Assisted Therapy: A Real-World Retrospective Analysis of 503 Adults
Abstract Background Prolonged grief disorder (PGD) is a clinically distinguishable bereavement-related condition characterized by persistent yearning, identity disruption, and impaired functioning, formalized in DSM-5-TR and ICD-11 (6L72) and empirically distinguishable from but frequently co-occurring with major depressive disorder. Approximately 7 to 10 pe...
Transient multidomain functional improvement in advanced Alzheimer’s disease following high-dose psilocybin-containing mushroom administration: a case report
Background: Advanced Alzheimer's disease (AD) is generally regarded as a stage of irreversible functional decline. Psilocybin is known to transiently alter large-scale brain network dynamics and to induce plasticity-related mechanisms in preclinical models, yet clinical data in advanced dementia remain lacking. Case presentation: We report the case of an oct...
The Safety and Efficacy of Psilocybin Therapy Compared to Low-dose Control in Reducing Depressive Symptoms in Patients With COPD, ALS, MS, or APD.
The goal of this clinical trial is to evaluate whether psilocybin therapy can effectively treat depression and psychological distress in adult patients with COPD, ALS, MS, or APD who have at least 6 months life expectancy. The main questions it aims to answer are: * Can psilocybin therapy safely reduce depressive symptoms compared to low-dose control? * Will...
“Large-Scale and Local Functional Connectivity Changes Following Psilocybin Administration in Methamphetamine Use Disorder
BACKGROUND AND PURPOSE: Methamphetamine (MA) use disorder is associated with widespread disruption of large-scale brain networks involved in cognitive control, attention, and salience processing. Resting-state functional MRI (rs-fMRI) provides a means to characterize these alterations; however, little is known about the capacity for functional network reorga...
Safety, Feasibility, and Tolerability of Psilocybin Treatment for Individuals With Functional Impairment Related to Mood, Anxiety, Trauma and/or Addiction Symptoms: An Open-label Proof-of-concept Study
The primary objective of this study is to investigate the safety, feasibility, and tolerability of psilocybin treatment in individuals with functional impairment due to psychiatric symptoms. The secondary objective of this study is to determine whether individuals with functional impairments due to psychiatric symptoms will experience statistically significa...
Spatiotemporal mapping of brain organisation following the administration of 2C-B and psilocybin
As psychedelic-assisted psychotherapy gains momentum, clinical investigation of next-generation psychedelics may lead to novel compounds tailored for specific populations. 2,5-dimethoxy-4-bromophenethylamine (2C-B) is a psychedelic phenethylamine reported to produce less dysphoria and subjective impairment than the psychedelic tryptamine psilocybin. Despite ...
The Relationship Between Participant Pretreatment Clinical Presentation and the Quality of Psilocybin Experience
PURPOSE/BACKGROUND: The therapeutic effects of psilocybin treatment are thought to be influenced by the subjective dose-dependent psychedelic experience, as well as the individual participant's mindset and the treatment environment. However, the relative contribution of an individual's pretreatment clinical characteristics and their subjective psychedelic ex...
Open Label, Phase 2 Study for Evaluating the Feasibility, Safety and Efficacy of Psychotherapy Assisted Psilocybin for Treatment of Severe Obsessive Compulsive Disorder (OCD) in Drug and/or Psychotherapy Resistant Patients.
Obsessive-compulsive disorder (OCD) is a neuropsychiatric disorder characterized by recurrent distressing thoughts and substantial anxiety, accompanied by repetitive behaviors or mental rituals. Individuals with OCD often have diminished quality of life, and functional impairment. The disorder cause high personal, societal and economic costs. Current availab...
Psilocybin-assisted physiotherapy for refractory motor functional neurological disorder: protocol for a randomised dose-comparison pilot study
BACKGROUND: Motor functional neurological disorder (FND) is a common illness associated with significant functional impairment. There are no effective pharmacotherapies, and despite the early promise of physiotherapy studies, many suffer disabling symptoms in the long term. There is a theoretical rationale for combining psychedelics with physiotherapy; howev...
Lifetime Psychedelic Use and Opioid Use Disorder Severity: Substance-Use Pattern Specific and Mental Health-Dependent Associations in a National Survey
Background and Aims The ongoing opioid epidemic remains a major public health crisis in the United States, with over 100,000 opioid-related deaths annually. Mental health disorders are strongly associated with opioid use disorder (OUD), compounding risks of misuse and overdose. Emerging evidence indicates that psychedelics may be associated with reduced risk...
Five-year outcomes of psilocybin-assisted therapy for Major Depressive Disorder
Abstract Background Major Depressive Disorder (MDD) is a leading cause of disability and economic loss, with high recurrence and treatment resistance. Psilocybin-assisted therapy (PAT) shows promise in reducing depressive symptoms, but long-term effects are unknown. We aimed to determine the long-term safety and efficacy of PAT for MDD over a five-year follo...
Investigating the safety and tolerability of single-dose psilocybin for post-traumatic stress disorder: A nonrandomized open-label clinical trial
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...
Evaluation of the Effect of a Single Dose of Psilocybin on Neural Correlates of Cognitive Control in Patients With Psychogenic Nonepileptic Seizures
Psychogenic non-epileptic seizures (PNES) are functional paroxysmal motor disorders that may be clinically suggestive of epilepsy but are not associated with the electroencephysiological and electroencephalographic changes of epilepsy. Thus, hyper-connectivity of the regions of the default mode network (DMN) linked to executive control could be involved in t...
The forgotten psychedelic: Spatiotemporal mapping of brain organisation following the administration of 2C-B and psilocybin
As psychedelic-assisted psychotherapy gains momentum, clinical investigation of next-generation psychedelics may lead to novel compounds tailored for specific populations. 2,5-dimethoxy-4-bromophenethylamine (2C-B) is a psychedelic phenethylamine reported to produce less dysphoria and subjective impairment than the psychedelic tryptamine psilocybin. Despite ...
Neurobiological Effects of Psilocybin in Treatment Resistant Bipolar Depression: An Emotional-Processing fMRI Pilot Study
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...
Narrative review of the potential for psychedelics to treat Prolonged Grief Disorder.
Prolonged Grief Disorder (PGD) is distinct from yet related to non-pathologic grief, depression, addiction, and Post-Traumatic Stress Disorder (PTSD) with a prevalence of up to 10% in bereaved populations. Hallmarks of PGD include functional impairment a year or more post-bereavement and intense yearning for the deceased. Current treatments for PGD are typic...
New Pharmacologic Approaches to the Treatment of Bipolar Depression.
Depression is the most commonly experienced mood state over the life span in individuals with bipolar disorder (BD) and is the primary driver of functional impairment and suicidality in BD. Despite this, there are few effective treatments for BD depression, with only a handful of atypical anti-psychotics and inconsistent evidence for traditional mood stabili...
Prevalence and associations of challenging, difficult or distressing experiences using classic psychedelics.
Previous studies have investigated challenging, difficult, or distressing classic psychedelic experiences, but little is known about the prevalence and associations of such experiences. Using nationally representative data of the US adult population (N = 2822), this study examined the prevalence and associations of challenging, difficult, or distressing expe...
Psychedelics as Novel Therapeutics in Alzheimer's Disease: Rationale and Potential Mechanisms.
Serotonin 2A receptor (5-HTR) agonist "classic psychedelics" are drawing increasing interest as potential mental health treatments. Recent work suggests psychedelics can exert persisting anxiolytic and antidepressant effects lasting up to several months after a single administration. Data indicate acute subjective drug effects as important psychological fact...