Trial of Psilocybin versus Escitalopram for Depression Robin Carhart-Harris, Ph.D., Bruna Giribaldi, B.Sc., Rosalind Watts, D.Clin.Psy., Michelle Baker-Jones, B.A., Ashleigh Murphy-Beiner, M.Sc., Roberta Murphy, M.D., Jonny Martell, M.D., Allan Blemings, M.Sc., David Erritzoe, M.D. and David J. Nutt, M.D.New England Journal of Medicine, 2021, 384, 1402-1411Doi : 10.1056/NEJMoa2032994 Abstract Background Psilocybin may have antidepressant properties, but direct comparisons between psilocybin and established treatments for depression are lacking. Methods In a phase 2, double-blind, randomized, controlled trial involving patients with long-standing, moderate-to-severe major depressive disorder, we compared psilocybin with escitalopram, a selective serotonin-reuptake inhibitor, over a 6-week period. Patients were assigned in a 1:1 ratio to receive [...]
Lire la suitePsilocybin for treatment-resistant depression : fMRI-measured brain mechanisms Robin L Carhart-Harris, Leor Roseman, Mark Bolstridge, Lysia Demetriou, J Nienke Pannekoek, Matthew B Wall, Mark Tanner, Mendel Kaelen, John McGonigle, Kevin Murphy, Robert Leech, H Valerie Curran & David J Nutt Nature, Scientific Reports, 2017, 7, 13187 |1-11 Doi : 10.1038/s41598-017-13282-7 Abstract Psilocybin with psychological support is showing promise as a treatment model in psychiatry but its therapeutic mechanisms are poorly understood. Here, cerebral blood flow (CBF) and blood oxygen-level dependent (BOLD) resting-state functional connectivity (RSFC) were measured with functional magnetic resonance imaging (fMRI) before and after treatment with psilocybin (serotonin agonist) for treatment-resistant depression (TRD). [...]
Lire la suitePsilocybin Delivers ‘Remarkable’ Relief in Severe Depression, Batya Swift Yasgur, Medscape.com, 2020
Psilocybin Delivers 'Remarkable' Relief in Severe Depression Batya Swift Yasgur, MA, LSW Medscape Medical News, November 05, 2020 Psilocybin, the psychedelic compound in "magic mushrooms," rapidly improves symptoms and produces remission in as little as two sessions for patients with major depression, new research suggests. Results of a small randomized trial showed that treatment with psilocybin was associated with a greater than 50% reduction in depressive symptoms in 67% of study participants. In addition, 71% showed improvement at 4-week follow-up, with more than 50% achieving remission. "The finding that the majority of people whom we treated showed efficacy was quite a remarkable and gratifying finding [...]
Lire la suiteHow ecstasy and psilocybin are shaking up psychiatry Regulators will soon grapple with how to safely administer powerful psychedelics for treating depression and post-traumatic stress disorder. Paul Tullis https://www.nature.com/articles/d41586-021-00187-9?utm_source=twt_nnc&utm_medium=social&utm_campaign=naturenews&sf242359384=1 Nature, 2021, 589, 506-509 doi: 10.1038/d41586-021-00187-9 Illustration by Gizem Vural PDF version On a sunny day in London in 2015, Kirk Rutter rode the Tube to Hammersmith Hospital in hopes of finally putting an end to his depression. Rutter had lived with the condition off and on for years, but the burden had grown since the death of his mother in 2011, followed by a relationship break-up and a car accident the year [...]
Lire la suitePositive expectations predict improved mental-health outcomes linked to psychedelic microdosing, KAERTNER L.S., STEINBORN M.B., KETTNER H., SPRIGGS M.J., ROSEMAN L., BUCHBORN T., BALAET M., TIMMERMANN C., ERRITZOE D., CARHARDT-HARRIS R.L. : Nature, 2021, 11, 1941 Doi : 1038/s41598-021-81446-7 Abstract Psychedelic microdosing describes the ingestion of near-threshold perceptible doses of classic psychedelic substances. Anecdotal reports and observational studies suggest that microdosing may promote positive mood and well-being, but recent placebo-controlled studies failed to find compelling evidence for this. The present study collected web-based mental health and related data using a prospective (before, during and after) design. Individuals planning a weekly microdosing regimen completed surveys at strategic [...]
Lire la suiteChanges in inflammatory biomarkers are related to the antidepressant effects of Ayahuasca Nicole Leite Galvão-Coelho, Ana Cecília de Menezes Galvão, Raíssa Nóbrega de Almeida, Fernanda Palhano-Fontes, Isaac Campos Braga, Bruno Lobão Soares, João Paulo Maia-de-Oliveira, Daniel Perkins, Jerome Sarris and Draulio Barros de Araujo Journal of Psychopharmacology, 2020, 1-9. DOI : 10.1177/0269881120936486 Abstract Background : Ayahuasca is a traditional Amazon brew and its potential antidepressant properties have recently been explored in scientific settings. We conducted a double-blind placebo-controlled trial of ayahuasca with treatment-resistant depression patients (n = 28) and healthy controls (n = 45). Aims : We are evaluating the blood inflammatory biomarkers: C-reactive protein and [...]
Lire la suiteReviewing the Potential of Psychedelics for the Treatment of PTSD Erwin Krediet, Tijmen Bostoen, Joost Breeksema, Annette van Schagen, Torsten Passie, Eric Vermetten International Journal of Neuropsychopharmacology, 2020, 23, (6), 385–400 doi : 10.1093/ijnp/pyaa018 https://pubmed.ncbi.nlm.nih.gov/32170326/ Abstract There are few medications with demonstrated efficacy for the treatment of posttraumatic stress disorder (PTSD). Treatment guidelines have unequivocally designated psychotherapy as a first line treatment for PTSD. Yet, even after psychotherapy, PTSD often remains a chronic illness, with high rates of psychiatric and medical comorbidity. Meanwhile, the search for and development of drugs with new mechanisms of action has stalled. Therefore, there is an urgent need to explore not [...]
Lire la suiteBIBLIOGRAPHIE : Thérapies Psychédéliques. Docteur Christian SUEUR, GRECC, version actualisée, décembre 2020. Addictions et thérapies psychédéliques : pp 23 – 29 Cf également Bibliographie : Microdosing psychédéliques, Dr C. Sueur, GRECC, février 2020.)
Lire la suitePTSD as a mediator of the relationship between trauma and psychotic experiences Daniela Strelchuk, Gemma Hammerton, Nicola Wiles, Jazz Croft, Katrina Turner, Jonathan Heron and Stanley Zammit Psychological Medicine, 2020, 1–9. doi : 10.1017/S0033291720004821 Abstract Background : Traumatic experiences are associated with a higher risk of psychotic illnesses, but little is known about potentially modifiable mechanisms underlying this relationship. This study aims to examine whether post-traumatic stress disorder (PTSD) symptoms mediate the relationship between trauma and psychotic experiences (PEs). Methods : We used data from the Avon Longitudinal Study of Parents and Children to examine whether: PTSD symptoms mediate the relationships between (a) childhood trauma and [...]
Lire la suiteThe potential synergistic effects between psychedelic administration and nature contact for the improvement of mental health Sam Gandy, Matthias Forstmann, Robin Lester Carhart-Harris, Christopher Timmermann, David Luke and Rosalind Watts Health Psychology Open, 2020, 1–21 Doi : 10.1177/2055102920978123 Abstract Therapeutic psychedelic administration and contact with nature have been associated with the same psychological mechanisms : decreased rumination and negative affect, enhanced psychological connectedness and mindfulness related capacities, and heightened states of awe and transcendent experiences, all processes linked to improvements in mental health amongst clinical and healthy populations. Nature-based settings can have inherently psychologically soothing properties which may complement all stages of psychedelic therapy (mainly [...]
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