Effects of Psilocybin-Assisted Therapy on Major Depressive Disorder. A Randomized Clinical Trial Alan K. Davis, PhD; Frederick S. Barrett, PhD; Darrick G. May, MD; Mary P. Cosimano, MSW; Nathan D. Sepeda, BS; Matthew W. Johnson, PhD; Patrick H. Finan, PhD; Roland R. Griffiths, PhD JAMA Psychiatry, 2020, E1-E9. doi : 10.1001/jamapsychiatry.2020.3285 IMPORTANCE : Major depressive disorder (MDD) is a substantial public health burden, but current treatments have limited effectiveness and adherence. Recent evidence suggests that 1 or 2 administrations of psilocybin with psychological support produces antidepressant effects in patients with cancer and in those with treatment-resistant depression. OBJECTIVE : To investigate the effect of psilocybin [...]
Lire la suiteFutures prescriptions de cannabis à visée thérapeutique : mode d’emploi Nicolas Authier The Conversation, 23 juin 2019 Depuis septembre 2018, l’Agence nationale de sécurité du médicament (ANSM) a mis en place un comité scientifique spécialisé temporaire (CSST) visant à réfléchir à la pertinence d’un accès en France à des préparations à base de cannabis à visée thérapeutique. La raison d’être de ce comité d’experts composé de médecins, de patients et de sociologues est de proposer une expérimentation visant à mieux soulager des patients qui souffrent, souvent depuis des années, sans trouver de solutions dans les thérapeutiques disponibles. Les travaux du CSST ne concernent [...]
Lire la suiteQui pourra expérimenter le cannabis médical en France ? Nicolas Authier The Conversation, 8 septembre 2020 En octobre 2019, l’actuel ministre des Solidarités et de la Santé, Olivier Véran, alors député, présentait devant l’Assemblée nationale le texte qui allait devenir l’article 43 de la loi N°2019-1446 de financement de la Sécurité sociale pour 2020. Cet article donne notamment la possibilité à l’État d’autoriser, dans le cadre d’une expérimentation de politique publique, l’usage médical du cannabis sous la forme de produits répondant aux standards pharmaceutiques. Il s’agit de l’aboutissement de deux ans de réflexion menées en France sur la pertinence scientifique et les modalités d’accès [...]
Lire la suiteReduction of Benzodiazepine Use in Patients Prescribed Medical Cannabis Chad Purcell, Andrew Davis, Nico Moolman, and S. Mark Taylor Cannabis and Cannabinoid Research, 2019, Volume 4, Number 3, Doi : 10.1089/can.2018.0020 Abstract Background : Benzodiazepines are a class of medication with sedative properties, commonly used for anxiety and other neurological conditions. These medications are associated with several well-known adverse effects. This observational study aims to investigate the reduction of benzodiazepine use in patients using prescribed medical cannabis. Methods : A retrospective analysis was performed on a cohort of 146 medical cannabis patients (average age 47 years, 61% female, 54% reporting prior use of cannabis) who reported [...]
Lire la suiteCannabis « médical » contre cannabis « récréatif » : une vision trop simpliste Nicolas Authier, The Conversation, 22 janvier 2020 https://theconversation.com/cannabis-medical-contre-cannabis-recreatif-une-vision-trop-simpliste-129090 Ponctuel ou régulier, seul ou en groupe, pour soulager une souffrance ou chercher une convivialité… L’usage du cannabis diffère selon que sa finalité est médicale ou non médicale. En France, l’usage médical du cannabis, sous forme de médicament, est autorisé depuis 2013, sous forme de spécialités pharmaceutiques. Cet usage médical est généralement opposé à l’usage dit « récréatif ». Cependant, si cette description simplifiée facilite les questions de réglementation, elle ne permet pas, du point de vue de la santé publique, de proposer [...]
Lire la suiteAntidepressive, anxiolytic, and antiaddictive effects of ayahuasca, psilocybin and lysergic acid diethylamide (LSD) : a systematic review of clinical trials published in the last 25 years Rafael G. dos Santos, Flávia L. Osório, José Alexandre S. Crippa, Jordi Riba, Antônio W. Zuardi and Jaime E. C. Hallak Therapeutic Advances in Psychopharmacology, 2016, Vol. 6, (3) 193–213 Doi : 10.1177/2045125316638008 Abstract : To date, pharmacological treatments for mood and anxiety disorders and for drug dependence show limited efficacy, leaving a large number of patients suffering severe and persistent symptoms. Preliminary studies in animals and humans suggest that ayahuasca, psilocybin and lysergic acid diethylamide (LSD) may have [...]
Lire la suiteBenefits and Harms of Plant-Based Cannabis for Posttraumatic Stress Disorder. A Systematic Review Maya E. O’Neil, PhD; Shannon M. Nugent, PhD; Benjamin J. Morasco, PhD; Michele Freeman, MPH; Allison Low, BA; Karli Kondo, PhD; Bernadette Zakher, MBBS; Camille Elven, MD; Makalapua Motu’apuaka, BA; Robin Paynter, MLIS; and Devan Kansagara, MD, MCR Annals of Internal Medicine, 2020 doi : 10.7326/M17-0477 Background : Cannabis is available from medical dispensaries for treating posttraumatic stress disorder (PTSD) in many states of the union, yet its efficacy in treating PTSD symptoms remains uncertain. Purpose : To identify ongoing studies and review existing evidence regarding the benefits and harms of plant-based [...]
Lire la suiteFDA Okays New Indication for Esketamine Nasal Spray Megan Brooks Medscape - Aug 03, 2020. The US Food and Drug Administration (FDA) has approved the supplemental new drug application for esketamine nasal spray (Spravato, Janssen Pharmaceuticals) to treat depressive symptoms in adults with major depressive disorder (MDD) and acute suicidal ideation or behavior. The FDA approved esketamine nasal spray for treatment-resistant depression in March 2019, as reported by Medscape Medical News. The new indication is based on data from two identical phase 3 trials — ASPIRE I and ASPIRE II — which evaluated the efficacy and safety of the nasal spray in addition to a comprehensive standard of care [...]
Lire la suiteCannabidiol for the treatment of cannabis use disorder : a phase 2a, double-blind, placebo-controlled, randomised, adaptive Bayesian trial Tom P Freeman, Chandni Hindocha, Gianluca Baio, Natacha D C Shaban, Emily M Thomas, Danica Astbury, Abigail M Freeman, Rachel Lees, Sam Craft, Paul D Morrison, Michael A P Bloomfield, Dominic O'Ryan, Jane Kinghorn, Celia J A Morgan, Ali Mofeez, H Valerie Curran The Lancet Psychiatry, 2020, doi : 10.1016/S2215-0366(20)30290-X Abstract Background : A substantial and unmet clinical need exists for pharmacological treatment of cannabis use disorders. Cannabidiol could offer a novel treatment, but it is unclear which doses might be efficacious or safe. Therefore, we aimed to identify efficacious doses and eliminate inefficacious doses in a phase 2a trial using [...]
Lire la suiteCytotoxic Effects of Cannabinoids on Human HT-29 Colorectal Adenocarcinoma Cells : Different Mechanisms of THC, CBD, and CB83 Daniela Cerretani, Giulia Collodel, Antonella Brizzi, Anna Ida Fiaschi, Andrea Menchiari, Elena Moretti, Laura Moltoni, Lucia Micheli International Journal of Molecular Sciences, 2020, 21, 5533 Doi : 10.3390/ijms21155533 Abstract In this study, we investigated the effects of exposition to IC50 dose for 24 h of a new synthetic cannabinoid (CB83) and of phytocannabinoids Δ9-tetrahydrocannabinol (THC) and cannabidiol (CBD) on HT-29 colorectal carcinoma cells. Cell viability and proliferative activity evaluated using the MTT, lactate dehydrogenase (LDH), and CyQUANT assays showed that cell viability was significantly affected when CB83, THC, and CBD [...]
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