Psylo Newsletter - July 2022

Science in Sixty Seconds


Why we need novel treatments for mental illness

One of the contributing drivers of the psychedelic renaissance is necessity.

Rates of mental illness are prevalent and rising.
Rates of mental illness and addiction have been increasing, especially in young people, and have jumped since the COVID-19 pandemic began. Poor mental health was the most common chronic health condition suffered by Australians in 2021, affecting one in 12 Australians.[1] Depression is one of the leading causes of disability in the world.[2] The cost of mental illness in Australia is $220B each year,[3] while just depression and anxiety cost the global economy US$ 2.5 trillion each year, and this cost is expected to rise to $6 trillion by 2030.[4]

Current treatments are minimally effective.
Anti-depressants are one of the most prescribed drugs in Australia. Although they are useful for some people, they are slow to work and are associated with considerable side effects; with one-third of people receiving no clinically-significant benefits.[5] Moreover, conditions like substance use disorders (alcohol dependence or methamphetamine dependence) and eating disorders have been notoriously difficult to treat with no truly effective treatments available.

Psychedelics set to transform psychiatry.
Clinical studies are showing psychedelics delivered in combination with psychotherapy to be fast-acting and effective options for depression and post-traumatic stress disorder. While not appropriate for everyone, these novel interventions are working in a larger portion of the population, especially in people who were previously treatment-resistant.

Moreover, early clinical evidence suggests that psychedelic treatments could be effective for intractable mental disorders, like addiction and eating disorders. There is more research and development to be done but psychedelic-inspired medicines are a new wave of promising treatments set to transform psychiatry. 

1. 2021 Census; 2.Global Burden of Disease 2019; 3.AU Gov Productivity Commission; 4. Lancet Global Health 2020; 5. EClinicalMedicine. 2021;41:101171.  

RESEARCH UPDATES

 

Psychedelic Clinical Research 

  • 🧡 MDMA facilitated rapid fear extinction and retention of extinction | When trialled in healthy males (n=30), in a small two-period, double-blind, randomized, placebo-controlled crossover study. This effect may be limited to certain forms of learned fear responses. MDMA increased oxytocin concentrations fourfold. [Front. Pharmacol.]
  • 🧠 Brain dynamics predictive of response to psilocybin for treatment-resistant depression | By comparing brain scans of people with treatment-resistant depression who did and did not respond to psilocybin-assisted psychotherapy (using a novel combination of empirical data and in silico modelling), researchers were able to identify specific brain regions implicated in a transition from a depressive brain state to a healthy one. Notably, these regions matched those with the highest density of 5HT2a and 5HT1a receptors. [PREPRINT: bioRxiv]
  • 🤯 Psilocybin-induced reduction in chronic cluster headache | Three low-to-moderate doses of psilocybin reduced chronic cluster headache attacks in a small open-label study (n=9) [PREPRINT: medRxiv]
  • 🌱 Ibogaine microdosing improved symptoms in a patient with bipolar depression: a case report | In a single patient with bipolar disorder, taking ibogaine (8 mg) daily for 60 days was associated with improvements in depression and anxiety symptoms, as well as tapering off their medications (mood stabilizers and escitalopram). [Braz J Psychiatry]
  • 🌴 Psychedelic mystical states associated with pro-environmental behavior | Participants who self-report a "complete" mystical state during psychedelic use scored higher on self-reported pro-environmental behaviours. Data from an online survey of  240 participants with prior psychedelic experience. [J Humanist Psychol]
 

Psychedelic Preclinical Research

  • 🐭 Exploration of psilocybin's mechanism of action using mice | Neural recordings from awake mice dosed with psilocybin revealed that psilocybin induced a state of desynchronised neural activity that was consistent with the dissolution of the default mode network observed in humans [Scientific Reports]
  • 🧬 5HT2a: different strokes for different folks | There are common variations of the 'psychedelic' 5HT2a receptor in humans. These variants were shown to interact differently with common psychedelics in cellular models in a variant- and drug-specific manner. This could explain some of the variability observed in individuals' response to psychedelics [ACS Chem Neurosci]
  • 🐭 Role of 5-HT2A, 5-HT2C, 5-HT1A and TAAR1 receptors in the head twitch response induced by 5-hydroxytryptophan (5-HTP) and psilocybin | Apart from 5-HT2AR's well-known contribution, 5-HT1AR and 5-HT2C also influence the HTR [PREPRINT: bioRxiv]
 

Psychedelic Research Reviews

 

Psychedelic Clinical Trials Update

A round-up of the latest registered clinical trials investigating psychedelics:
  • Psychedelic Therapy for Wellness Studies Retrospectively -  NCT05469243
  • Bioavailability Study of Psilocybin in Normal Adults -  NCT05467761
  • MDMA-Assisted Therapy for Stress Disorders in Healthcare Workers - NCT05455996
  • 5-HT2A Agonist Psilocybin in the Treatment of Tobacco Use Disorder - NCT05452772
  • LSD Treatment for Persons With Alcohol Use Disorder (LYSTA) - NCT05474989

Other News

PSYLO UPDATES

PSYLO UPDATES

  • Psylo was selected as one of Australia's top innovators in the Australian
  • Psylo launches a merch store with all proceeds donated to Black Dog Institute
  • William Jorgensen was awarded Therapeutic Innovation Australia Pipeline Accelerator funding to advance Psylo's pipeline in partnership with Monash University's Centre for Drug Candidate Optimisation (CDCO). 
  • Dr Sam and Dr Dilara presented at the Splendour in the Grass Science Tent on the science of psychedelics and other drugs, 23-24 July
  • Josh Ismin was invited to lunch in New York with the legendary LSD chemist William Leonard Pickard
  • Dr Sam Banister presented at the Spark Festival Research + Med-Tech + Health-Tech Mixer, 21 July 2022
  • Dr Sam and Dr Dilara presented on the 'Future of Psychedelics' to a full house at the Commons in Melbourne, 1 July 2022


Psylo in the Media

  • Psylo's innovative approach to ramping up its psychedelic drug discovery was featured in Drug Discovery World, 22 July 2022
  • PSYLO engages CSIRO to evaluate neuroplasticity of novel psychedelic compounds - CSIRO News, 11 July 2022
  • Designer Psychedelics of the Future - Dr Sam Banister appeared on a podcast with Brom Rector from Empath Ventures (60 min).
  • The Psylo team and Luke Hunter were filmed to create a co-location partnership video between Psylo and UNSW that will be highlighted on the UNSW Science Industry Opportunities page. 
 
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