Trial PaperAnxiety DisordersDepressive DisordersSuicidalityPalliative & End-of-Life DistressPsilocybin

Rapid and sustained symptom reduction following psilocybin treatment for anxiety and depression in patients with life-threatening cancer: A randomized controlled trial

In a double-blind, placebo-controlled crossover trial of 29 patients with cancer-related anxiety and depression, a single moderate dose of psilocybin (0.3 mg/kg) given with psychotherapy produced rapid, substantial and sustained reductions in anxiety and depression versus niacin, with around 60–80% of participants maintaining clinically significant improvements at 6.5 months. Psilocybin also reduced demoralisation and hopelessness, improved spiritual wellbeing, quality of life and attitudes to death, and the intensity of the psilocybin-induced mystical experience mediated its therapeutic effects.

Authors

  • Gabrielle Agin-Liebes
  • Stephen Ross
  • James Guss

Published

Journal of Psychopharmacology
individual Study

Abstract

Background

Clinically significant anxiety and depression are common in patients with cancer, and are associated with poor psychiatric and medical outcomes. Historical and recent research suggests a role for psilocybin to treat cancer-related anxiety and depression.

Methods

In this double-blind, placebo-controlled, crossover trial, 29 patients with cancer-related anxiety and depression were randomly assigned and received treatment with single-dose psilocybin (0.3 mg/kg) or niacin, both in conjunction with psychotherapy. The primary outcomes were anxiety and depression assessed between groups prior to the crossover at 7 weeks.

Results

Prior to the crossover, psilocybin produced immediate, substantial, and sustained improvements in anxiety and depression and led to decreases in cancer-related demoralization and hopelessness, improved spiritual wellbeing, and increased quality of life. At the 6.5-month follow-up, psilocybin was associated with enduring anxiolytic and anti-depressant effects (approximately 60–80% of participants continued with clinically significant reductions in depression or anxiety), sustained benefits in existential distress and quality of life, as well as improved attitudes towards death. The psilocybin-induced mystical experience mediated the therapeutic effect of psilocybin on anxiety and depression.

Conclusions

In conjunction with psychotherapy, single moderate-dose psilocybin produced rapid, robust and enduring anxiolytic and anti-depressant effects in patients with cancer-related psychological distress.

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Research Summary of 'Rapid and sustained symptom reduction following psilocybin treatment for anxiety and depression in patients with life-threatening cancer: A randomized controlled trial'

Introduction

Persistent, clinically significant anxiety and/or depressive symptoms affect a substantial proportion of patients with cancer and are associated with poorer medical and psychosocial outcomes, including increased healthcare use, reduced quality of life, greater hopelessness and higher suicide risk. Existing pharmacological and psychosocial treatments for cancer-related psychological distress have mixed efficacy, delayed onset for antidepressants, notable side effects, and no approved medications specifically for this indication. Previous open-label and early controlled trials with serotonergic psychedelics suggested potential benefits for cancer-related existential distress, and growing evidence links higher existential/spiritual wellbeing with better psychological outcomes in cancer care. Ross and colleagues set out to test whether a single moderate oral dose of psilocybin (0.3 mg/kg), administered alongside a manualised psychotherapy platform, would reduce anxiety and depression in patients with life‑threatening cancer compared with an active control (niacin 250 mg) plus the same psychotherapy. The trial aimed to assess both immediate effects and durability up to several months, and to examine whether the intensity of mystical-type subjective experiences mediated clinical outcomes.

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Study Details

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30 cited
Classic Psychedelic Drugs: Update on Biological Mechanisms

Vollenweider, F. X., Smallridge, J. W. · Pharmacopsychiatry (2022)

71 cited
Knowledge, Perceptions, and Use of Psychedelics among Individuals with Fibromyalgia

Glynos, N. G., Pierce, J., Davis, A. K. et al. · Journal of Psychoactive Drugs (2022)

Validation of the Psychological Insight Scale: A new scale to assess psychological insight following a psychedelic experience

Peill, J. M., Trinci, K. E., Kettner, H. et al. · Journal of Psychopharmacology (2022)

Exploring the Credibility of Psilocybin-assisted Therapy and Cognitive-behavioral Therapy for Depression

Altman, B. R., Earleywine, M., De Leo, J. · Journal of Psychoactive Drugs (2022)

4 cited
Human behavioral pharmacology of psychedelics

Strickland, J. C., Johnson, M. W. · Advances in Pharmacology (2022)

5 cited
Effective Connectivity of LSD-induced Ego Dissolution

Stoliker, D., Novelli, L., Vollenweider, F. X. et al. · MedRvix (2021)

4 cited
Psychedelic Therapy's Transdiagnostic Effects: A Research Domain Criteria (RDoC) Perspective

Dursun, S. M., Kelly, J. R., Gillan, C. M. et al. · Frontiers in Psychiatry (2021)

Psychedelic-Assisted Therapy for Substance Use Disorders and Potential Mechanisms of Action

Rieser, N. M., Herdener, M. ;., Preller, K. H. · Current Topics in Behavioral Neurosciences (2021)

Models of psychedelic drug action: modulation of cortical-subcortical circuits

Doss, M. K., Madden, M. B., Gaddis, A. et al. · Brain (2021)

Great Expectations: Recommendations for improving the methodological rigor of psychedelic clinical trials

Aday, J. S., Heifets, B. D., Pratscher, S. D. et al. · Psychopharmacology (2021)

Classic psychedelics in the treatment of substance use disorder: Potential synergies with twelve-step programs

Yaden, D. B., Berghella, A. P., Regier, P. S. et al. · International Journal of Drug Policy (2021)

41 cited
Psychedelic experience dose-dependently modulated by cannabis: results of a prospective online survey

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Psychedelics as Novel Therapeutics in Alzheimer’s Disease: Rationale and Potential Mechanisms

Garcia-Romeu, A., Darcy, S., Jackson, H. et al. · Current Topics in Behavioral Neurosciences (2021)

From Psychiatry to Neurology: Psychedelics as Prospective Therapeutics for Neurodegenerative Disorders

Nichols, C. D., Wiatr, K., Figiel, M. et al. · Journal of Neurochemistry (2021)

63 cited
A narrative synthesis of research with 5-MeO-DMT

Ermakova, A. O., Dunbar, F., Rucker, J. et al. · Journal of Psychopharmacology (2021)

Day trip to hell: A mixed methods study of challenging psychedelic experiences

Johnstad, P. G. · Journal of Psychedelic Studies (2021)

43 cited
Psilocybin for End-of-Life Anxiety Symptoms: A Systematic Review and Meta-Analysis

Yang, F., Yang, S., Tseng, P. et al. · Psychiatry Investigation (2021)

Novel Treatment Approaches for Substance Use Disorders: Therapeutic Use of Psychedelics and the Role of Psychotherapy

Johnson, M. W., Gründer, G., Betzler, F. et al. · Current Addiction Reports (2021)

A Qualitative Exploration of Relational Ethical Challenges and Practices in Psychedelic Healing

Brennan, W., Jackson, M. A., MacLean, K. A. · Journal of Humanistic Psychology (2021)

34 cited
Do Psychedelics Change Beliefs?

McGovern, H., Leptourgos, P., Hutchinson, B. et al. · Psyarxiv (2021)

Safety pharmacology of acute LSD administration in healthy subjects

Holze, F., Caluori, T. V., Vizeli, P. et al. · Psychopharmacology (2021)

The effects of tryptamine psychedelics in the brain: a meta-analysis of functional and review of molecular imaging studies

Castelhano, J. M., Lima, G. M., Teixeira, M. et al. · Frontiers in Pharmacology (2021)

Improving cognitive functioning in major depressive disorder with psychedelics: a dimensional approach

Kuiperes, Z., Schreiber, R. · Neurobiology of Learning and Memory (2021)

Psilocybin-induced changes in brain network integrity and segregation correlate with plasma psilocin level and psychedelic experience

Madsen, M. K., Stenbaek, D. S., Arvidsson, A. et al. · European Neuropsychopharmacology (2021)

Cancer Healthcare Workers' Perceptions toward Psychedelic-Assisted Therapy: A Preliminary Investigation

Reynolds, L. M, Stack, A., Akroyd, A., Sundram, F. et al. · International Journal of Environmental Research and Public Health (2021)

22 cited
Turn on, Tune in, and Drop out: Predictors of Attrition in a Prospective Observational Cohort Study on Psychedelic Use

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A Nationwide Study Comparing Mental Health Professionals' Willingness to Try Hallucinogenic Drugs in Basic Research or Clinical Practice

Ginati, Y. D., Ben-Sheetrit, J., Lev-Ran, S. et al. · Journal of Psychoactive Drugs (2021)

5 cited
Systematized Review of Psychotherapeutic Components of Psilocybin-Assisted Psychotherapy

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Does psychedelic therapy have a transdiagnostic action and prophylactic potential?

Kočárová, C., Horacek, J., Carhart-Harris, R. L. · Frontiers in Psychiatry (2021)

73 cited
Trips and Neurotransmitters: Discovering Principled Patterns across 6,850 Hallucinogenic Experiences

Ballentine, G., Friedman, S. F., Bzdok, D. · Science Advances (2021)

44 cited
LSD, madness and healing: Mystical experiences as possible link between psychosis model and therapy model

Wießner, I., Falchi, M., Palhano-Fontes, F. et al. · Psychological Medicine (2021)

Psychedelics alter metaphysical beliefs

Timmermann, C., Kettner, H., Letheby, C. et al. · Scientific Reports (2021)

58 cited
Psilocybin and MDMA for the treatment of trauma-related psychopathology

Bird, C. I. V., Modlin, N. L., Rucker, J. · International Review of Psychiatry (2021)

Catalysts for change: the cellular neurobiology of psychedelics

Bement, W., Banks, M. I., Zahid, Z. et al. · Molecular Biology of the Cell (2021)

31 cited
Psychedelics and health behaviour change

Teixeira, P. J., Johnson, M. W., Timmermann, C. et al. · Journal of Psychopharmacology (2021)

Genetic influence of CYP2D6 on pharmacokinetics and acute subjective effects of LSD in a pooled analysis

Vizeli, P., Straumann, I., Holze, F. et al. · Scientific Reports (2021)

40 cited
Future Directions for Clinical Psilocybin Research: The Relaxed Symptom Network

Lewis-Healey, E., Laukkonen, R., Van Elk, M. · Psyarxiv (2021)

1 cited
Effects of Psilocybin-Assisted Therapy on Major Depressive Disorder

Davis, A. K., Barrett, F. S., May, D. G. et al. · JAMA Psychiatry (2021)

1015 cited
Effects of ayahuasca and its alkaloids on substance use disorders: an updated (2016-2020) systematic review of preclinical and human studies

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Can pragmatic research, real-world data and digital technologies aid the development of psychedelic medicine?

Carhart-Harris, R. L., Wagner, A. C., Agrawal, M. et al. · Journal of Psychopharmacology (2021)

40 cited
Trial of Psilocybin versus Escitalopram for Depression

Carhart-Harris, R. L., Giribaldi, B., Watts, R. et al. · New England Journal of Medicine (2021)

927 cited
Mapping an Agenda for Psychedelic-Assisted Therapy Research in Patients with Serious Illness

Beaussant, Y., Tulsky, J., Guérin, B. et al. · Journal of Palliative Medicine (2021)

Psilocybin in end of life care: Implications for further research

Summergrad, P. · Journal of Psychopharmacology (2021)

Evaluating the Risk of Psilocybin for the Treatment of Bipolar Depression: A Systematic Review of Published Case Studies

Gard, D. E., Pleet, M. M., Bradley, E. R. et al. · Journal of Affective Disorders (2021)

Naturalistic Use of Mescaline Is Associated with Self-Reported Psychiatric Improvements and Enduring Positive Life Changes

Agin-Liebes, G. I., Lancelotta, R., Uthaug, M. V. et al. · ACS Pharmacology and Translational Science (2021)

Hallucinogenic/psychedelic 5HT2A receptor agonists as rapid antidepressant therapeutics: Evidence and mechanisms of action

Dos Santos, R. G., Hallak, J. E., Baker, G. et al. · Journal of Psychopharmacology (2021)

Combining Psychedelic and Mindfulness Interventions: Synergies to Inform Clinical Practice

Payne, J. E., Chambers, R., Liknaitzky, P. · ACS Pharmacology and Translational Science (2021)

55 cited
On the Relationship between Classic Psychedelics and Suicidality: A Systematic Review

Zeifman, R. J., Singhal, N., Breslow, L. et al. · ACS Pharmacology and Translational Science (2021)

Blinding and Expectancy Confounds in Psychedelic Randomised Controlled Trials

Muthukumaraswamy, S., Forsyth, B., Lumley, T. · Expert Review of Clinical Pharmacology (2021)

Predicting Reactions to Psychedelic Drugs: A Systematic Review of States and Traits Related to Acute Drug Effects

Aday, J. S., Davis, A. K., Mitzkovitz, C. M. et al. · ACS Pharmacology and Translational Science (2021)

Dose-response relationships of psilocybin-induced subjective experiences in humans

Hirschfeld, T., Schmidt, T. T. · Journal of Psychopharmacology (2021)

Optimal dosing for psilocybin pharmacotherapy: Considering weight-adjusted and fixed dosing approaches

Garcia-Romeu, A., Barrett, F. S., Carbonaro, T. M. et al. · Journal of Psychopharmacology (2021)

75 cited
Trends in the Top-Cited Articles on Classic Psychedelics

Lawrence, D. W., Sharma, B., Griffiths, R. R. et al. · Journal of Psychoactive Drugs (2021)

LSD alters dynamic integration and segregation in the human brain

Luppi, A. I., Carhart-Harris, R. L., Roseman, L. et al. · NeuroImage (2021)

141 cited
Positive expectations predict improved mental-health outcomes linked to psychedelic microdosing

Kaertner, L. S., Steinborn, M. B., Kettner, H. et al. · Scientific Reports (2021)

112 cited
Culture and psychedelic psychotherapy: Ethnic and racial themes from three Black women therapists

Williams, M. T., Reed, S., George, J. · Journal of Psychedelic Studies (2021)

41 cited
Development of the Psychological Insight Questionnaire among a sample of people who have consumed psilocybin or LSD

Davis, A. K., Streeter Barrett, F., Griffiths, R. R. et al. · Journal of Psychopharmacology (2021)

108 cited
Psychedelic Medicines in Major Depression: Progress and Future Challenges

Bouso, J. C., Ona, G., Dos Santos, R. G. et al. · Advances in Experimental Medicine and Biology (2021)

The Subjective Effects of Psychedelics Are Necessary for Their Enduring Therapeutic Effects

Yaden, D. B., Griffiths, R. R. · ACS Pharmacology and Translational Science (2020)

People of color in North America report improvements in racial trauma and mental health symptoms following psychedelic experiences

Williams, T. M., Davis, A. K., Xin, Y. et al. · Drugs Education Prevention and Policy (2020)

Effect of lysergic acid diethylamide (LSD) on reinforcement learning in humans

Kanen, J. W., Luo, Q., Kandroodi, M. R. et al. · Psychological Medicine (2020)

Psychedelics and Psychotherapy

Nayak, S., Johnson, M. W. · Pharmacopsychiatry (2020)

The ritual use of ayahuasca during treatment of severe physical illnesses: a qualitative study

Maia, L. O., Daldegan-Bueno, D., Tófoli, L.F. · Journal of Psychoactive Drugs (2020)

21 cited
The potential synergistic effects between psychedelic administration and nature contact for the improvement of mental health

Gandy, S., Forstmann, M., Carhart-Harris, R. L. et al. · Health Psychology Open (2020)

Pivotal Mental States

Brouwer, A., Carhart-Harris, R. L. · Journal of Psychopharmacology (2020)

Therapeutic effects of classic serotonergic psychedelics: A systematic review of modern-era clinical studies

Andersen, K. A. A., Carhart-Harris, R. L., Nutt, D. J. et al. · Acta Psychiatrica Scandinavica (2020)

Post-acute psychological effects of classical serotonergic psychedelics: A systematic review and meta-analysis

Goldberg, S. B., Shechet, B., Nicholas, C. R. et al. · Psychological Medicine (2020)

Acute subjective effects in LSD- and MDMA-assisted psychotherapy

Schmid, Y., Gasser, P., Oehen, P. et al. · Journal of Psychopharmacology (2020)

72 cited
Brain serotonin 2A receptor binding predicts subjective temporal and mystical effects of psilocybin in healthy humans

Stenbæk, D. S., Madsen, M. K., Ozenne, B. et al. · Journal of Psychopharmacology (2020)

The Emerging Role of Psilocybin and MDMA in the Treatment of Mental Illness

Gill, H., Gill, B., Chen-Li, D. et al. · Expert Review of Neurotherapeutics (2020)

Psychedelic drugs: neurobiology and potential for treatment of psychiatric disorders

Vollenweider, F. X., Preller, K. H. · Nature Reviews Neuroscience (2020)

Structure of a Hallucinogen-Activated Gq-Coupled 5-HT2A Serotonin Receptor

Kim, K., Che, T., Panova, O. et al. · Cell (2020)

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Psychedelics and virtual reality: parallels and applications

Aday, J. S., Davoli, C. C., Bloesch, E. K. · Therapeutic Advances in Psychopharmacology (2020)

82 cited
Changes in inflammatory biomarkers are related to the antidepressant effects of Ayahuasca

Galvão-Coelho, N. L., de Menezes Galvão, A. C., de Almeida, R. N. et al. · Journal of Psychopharmacology (2020)

84 cited
Historic psychedelic drug trials and the treatment of anxiety disorders

Weston, N. M., Gibbs, D., Bird, C. I. V. et al. · Depression and Anxiety (2020)

Direct Phosphorylation of Psilocin Enables Optimized cGMP Kilogram-Scale Manufacture of Psilocybin

Kargbo, R. B., Sherwood, A. R., Walker, A. et al. · ACS Omega (2020)

28 cited
A Meta-Analysis of Placebo-Controlled Trials of Psychedelic-Assisted Therapy

Luoma, J. B., Chwyl, C., Bathje, G. J. et al. · Journal of Psychoactive Drugs (2020)

168 cited
Mystical Experiences in Retrospective Reports of First Times Using a Psychedelic in Finland

Kangaslampi, S., Hausen, A., Rauteenmaa, T. · Journal of Psychoactive Drugs (2020)

Integrating psychotherapy and psychopharmacology: psychedelic-assisted psychotherapy and other combined treatments

Greenway, K. T., Garel, N., Jerome, L. et al. · Expert Review of Clinical Pharmacology (2020)

Updating the dynamic framework of thought: Creativity and psychedelics

Girn, M., Mills, C., Roseman, L. et al. · NeuroImage (2020)

Compassionate use of psychedelics

Greif, A., Šurkala, M. · Medicine Health Care and Philosophy (2020)

Ethics and ego dissolution: the case of psilocybin

Smith, W. R., Sisti, D. · Journal of Medical Ethics (2020)

Psychedelic treatment of functional neurological disorder: a systematic review

Butler, M., Seynaeve, M., Nicholson, T. R. et al. · Therapeutic Advances in Psychopharmacology (2020)

Chronic pain and psychedelics: a review and proposed mechanism of action

Castellanos, J. P., Woolley, C., Bruno, K. A. et al. · Regional Anesthesia and Pain Medicine (2020)

101 cited
Isness: Using Multi-Person VR to Design Peak Mystical Type Experiences Comparable to Psychedelics

Glowacki, D. R., Wonnacott, M. D., Freire, R. et al. · Association for Computing Machinery (2020)

32 cited
Subacute Effects of the Psychedelic Ayahuasca on the Salience and Default Mode Networks

Pasquini, L., Palhano-Fontes, F., Araújo, D. B. · Journal of Psychopharmacology (2020)

73 cited
Experience of Music Used With Psychedelic Therapy: A Rapid Review and Implications

O'callaghan, C., Hubik, D. J., Psychiatry, M. et al. · Journal of Music Therapy (2020)

Long-term effects of psychedelic drugs: A systematic review

Aday, J. S., Mitzkovitz, C. M., Bloesch, E. K. et al. · Neuroscience and Biobehavioral Reviews (2020)

Reviewing the potential of psychedelics for the treatment of PTSD

Krediet, E., Bostoen, T., Breeksema, J. J. et al. · International Journal of Neuropsychopharmacology (2020)

Natural Psychoplastogens As Antidepressant Agents

Benko, J., Vranková, S. · Molecules (2020)

Microdosing psychedelics: Demographics, practices, and psychiatric comorbidities.

Rosenbaum, D., Weissman, C. R., Anderson, T. et al. · Journal of Psychopharmacology (2020)

55 cited
Psychedelics and Psychedelic-Assisted Psychotherapy

Reiff, C. M., Richman, E. E., Nemeroff, C. B. et al. · American Journal of Psychiatry (2020)

Learning to Let Go: A Cognitive-Behavioral Model of How Psychedelic Therapy Promotes Acceptance

Wolff, M., Evens, R., Mertens, L. J. et al. · Frontiers in Psychiatry (2020)

Rostral Anterior Cingulate Thickness Predicts the Emotional Psilocybin Experience

Lewis, C. R., Preller, K. H., Braden, B. B. et al. · Biomedicines (2020)

24 cited
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Emotions and brain function are altered up to one month after a single high dose of psilocybin

Barrett, F. S., Doss, M. K., Sepeda, N. D. et al. · Scientific Reports (2020)

Acute effects of psilocybin on glutamate concentration levels, functional connectivity and subjective state

Mason, N. L., Feilding, A., Ramaekers, J. G. · European Neuropsychopharmacology (2020)

The experimental effects of psilocybin on symptoms of anxiety and depression: A meta-analysis

Goldberg, S. B., Pace, B. T., Nicholas, C. R. et al. · Psychiatry Research (2020)

Reported effects of psychedelic use on those with low well-being given various emotional contexts

Mason, N. L., Dolder, P. C., Kuypers, K. P. C. · Drug Science Policy and Law (2020)

12 cited
Persisting Reductions in Cannabis, Opioid, and Stimulant Misuse After Naturalistic Psychedelic Use: An Online Survey

Garcia-Romeu, A., Davis, A. K., Griffiths, R. R. et al. · Frontiers in Psychiatry (2020)

121 cited
Therapeutic Use of LSD in Psychiatry: A Systematic Review of Randomized-Controlled Clinical Trials

Fuentes, J. J., Fonseca, F., Elices, M. et al. · Frontiers in Psychiatry (2020)

292 cited
Psychological flexibility mediates the relations between acute psychedelic effects and subjective decreases in depression and anxiety

Davis, A. K., Barrett, F. S., Griffiths, R. R. · Journal of Contextual Behavioral Science (2020)

Modulation of Social Cognition via Hallucinogens and “Entactogens”.

Preller, K. H., Vollenweider, F. X. · Frontiers in Psychiatry (2019)

In vivo production of psilocybin in E. coli

Adams, A. M., Kaplan, N. A., Wei, Z. et al. · Metabolic Engineering (2019)

The Impact of Ayahuasca on Suicidality: Results From a Randomized Controlled Trial.

Araújo, D. B., Zeifman, R. J., Palhano-Fontes, F. et al. · Frontiers in Pharmacology (2019)

96 cited
Distinct acute effects of LSD, MDMA, and D-amphetamine in healthy subjects.

Holze, F., Vizeli, P., Müller, F. et al. · Neuropsychopharmacology (2019)

214 cited
Characterization and prediction of acute and sustained response to psychedelic psilocybin in a mindfulness group retreat

Smigielski, L., Kometer, M., Scheidegger, M. et al. · Scientific Reports (2019)

126 cited
Toward a contextual psychedelic-assisted therapy: Perspectives from Acceptance and Commitment Therapy and contextual behavioral science

Luoma, J. B., Sabucedo, P., Eriksson, J. et al. · Journal of Contextual Behavioral Science (2019)

Self-Rated Effectiveness of Microdosing With Psychedelics for Mental and Physical Health Problems Among Microdosers

Hutten, N. P. W., Mason, N. L., Dolder, P. C. et al. · Frontiers in Psychiatry (2019)

Emotional breakthrough and psychedelics: validation of the emotional breakthrough inventory

Roseman, L., Haijen, E. C. H. M., Idialu-Ikato, K. et al. · Journal of Psychopharmacology (2019)

Psychedelic microdosing benefits and challenges: an empirical codebook

Anderson, T., Petranker, R., Christopher, A. et al. · Harm Reduction Journal (2019)

REBUS and the Anarchic Brain: Toward a Unified Model of the Brain Action of Psychedelics

Carhart-Harris, R. L., Friston, K. J. · Pharmacological Reviews (2019)

Modulation of Serum Brain-Derived Neurotrophic Factor by a Single Dose of Ayahuasca: Observation From a Randomized Controlled Trial

Galvão-Coelho, N. L., de Almeida, R. N., de Menezes Galvão, A. C. et al. · Frontiers in Psychology (2019)

Effects of acute and repeated treatment with serotonin 5-HT2A receptor agonist hallucinogens on intracranial self-stimulation in rats

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41 cited
Psychedelic drugs-a new era in psychiatry?

Nutt, D. J. · Dialogues in Clinical Neuroscience (2019)

Psilocybin lacks antidepressant-like effect in the Flinders Sensitive Line rat

Jefsen, O., Højgaard, K., Christiansen, S. L. et al. · Acta Neuropsychiatrica (2019)

60 cited
Cessation and reduction in alcohol consumption and misuse after psychedelic use

Garcia-Romeu, A., Davis, A. K., Fire Erowid et al. · Journal of Psychopharmacology (2019)

211 cited
5-methoxy-N,N-dimethyltryptamine (5-MeO-DMT) used in a naturalistic group setting is associated with unintended improvements in depression and anxiety

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113 cited
States and traits related to the quality and consequences of psychedelic experiences

Russ, S. L., Carhart-Harris, R. L., Maruyama, G. et al. · Psychology of Consciousness Theory Research and Practice (2019)

Psychedelic effects of psilocybin correlate with serotonin 2A receptor occupancy and plasma psilocin levels

Madsen, M. K., Fisher, P. M., Burmester, D. et al. · Neuropsychopharmacology (2019)

Trait Openness and serotonin 2A receptors in healthy volunteers: A positron emission tomography study

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Microdosing psychedelics: personality, mental health, and creativity differences in microdosers

Anderson, T., Petranker, R., Rosenbaum, D. et al. · Psychopharmacology (2019)

142 cited
Psychiatry might need some psychedelic therapy

Johnson, M. W. · International Review of Psychiatry (2018)

Current perspectives on psychedelic therapy: use of serotonergic hallucinogens in clinical interventions

Richards, W. A., Garcia-Romeu, A. · International Review of Psychiatry (2018)

Predicting responses to psychedelics: a prospective study

Haijen, E. C. H. M., Kaelen, M., Roseman, L. et al. · Frontiers in Pharmacology (2018)

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Psychedelics and music: neuroscience and therapeutic implications

Barrett, F. S., Preller, K. H., Kaelen, M. · International Review of Psychiatry (2018)

Psychedelics, meditation, and self-consciousness

Milliere, R., Carhart-Harris, R. L., Roseman, L. et al. · Frontiers in Psychology (2018)

DMT models the near-death experience

Timmermann, C., Roseman, L., Williams, L. et al. · Frontiers in Psychology (2018)

Psychedelics as anti-inflammatory agents

Flanagan, T. W., Nichols, C. D. · International Review of Psychiatry (2018)

Positive psychology in the investigation of psychedelics and entactogens: A critical review

Jungaberle, H., Thal, S., Zeuch, A. et al. · Neuropharmacology (2018)

DARK Classics in Chemical Neuroscience: Psilocybin

Geiger, H. A., Wurst, M. G., Daniels, R. N. · ACS Chemical Neuroscience (2018)

High dose psilocybin is associated with positive subjective effects in healthy volunteers

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61 cited
Psychedelic therapy for smoking cessation: Qualitative analysis of participant accounts

Noorani, T., Garcia-Romeu, A., Swift, T. C. et al. · Journal of Psychopharmacology (2018)

Effects of psilocybin therapy on personality structure

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219 cited
The abuse potential of medical psilocybin according to the 8 factors of the Controlled Substances Act

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A Survey of American Psychiatrists’ Attitudes Toward Classic Hallucinogens

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Dark Classics in Chemical Neuroscience: Mescaline

Cassels, B. K., Sáez-Briones, P. · ACS Chemical Neuroscience (2018)

Psychedelic use and intimate partner violence

Walsh, Z., Bird, B. M., Lafrance, A. et al. · Journal of Psychopharmacology (2018)

Integrating Psychedelic Medicines and Psychiatry: Theory and Methods of a Model Clinic

Sloshower, J. A. · Plant Medicines Healing and Psychedelic Science (2018)

The Use of Salvia divinorum from a Mazatec Perspective

Maqueda, A. E. · Plant Medicines Healing and Psychedelic Science (2018)

Individual Experiences in Four Cancer Patients Following Psilocybin-Assisted Psychotherapy

Ross, S., Malone, T. C., Mennenga, S. E. et al. · Frontiers in Pharmacology (2018)

Ceremonial ‘Plant Medicine’ use and its relationship to recreational drug use: an exploratory study

Dorsen, C., Palamar, J., Shedlin, M. G. · Addiction Research and Theory (2018)

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Unifying theories of psychedelic drug effects

Swanson, L. R. · Frontiers in Pharmacology (2018)

Clinical interpretations of patient experience in a trial of psilocybin-assisted psychotherapy for alcohol use disorder

Bogenschutz, M. P., Podrebarac, S. K., Duane, J. H. et al. · Frontiers in Pharmacology (2018)

Powerful substances in tiny amounts An interview study of psychedelic microdosing

Johnstad, P. G. · Nordic Studies on Alcohol and Drugs (2018)

121 cited
Serotonergic hallucinogens in the treatment of anxiety and depression in patients suffering from a life-threatening disease: A systematic review

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The hidden therapist: evidence for a central role of music in psychedelic therapy

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213 cited
Psychedelics and the essential importance of context

Carhart-Harris, R. L., Roseman, L., Haijen, E. C. H. M. et al. · Journal of Psychopharmacology (2018)

Quality of acute psychedelic experience predicts therapeutic efficacy of psilocybin for treatment-resistant depression

Roseman, L., Nutt, D. J., Carhart-Harris, R. L. · Frontiers in Pharmacology (2018)

Psychiatry & the psychedelic drugs. Past, present & future

Rucker, J., Iliff, J., Nutt, D. J. · Neuropharmacology (2017)

Psilocybin with psychological support for treatment-resistant depression: six-month follow-up

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74 cited
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Patients’ accounts of increased “Connectedness” and “Acceptance” after psilocybin for treatment-resistant depression

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130 cited
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Thomas, K., Malcolm, B., Lastra, D. · Journal of Psychoactive Drugs (2017)

Patient Experiences of Psilocybin-Assisted Psychotherapy: An Interpretative Phenomenological Analysis

Belser, A. B., Agin-Liebes, G. I., Swift, T. C. et al. · Journal of Humanistic Psychology (2017)

Modern clinical research on LSD

Liechti, M. E. · Neuropsychopharmacology (2017)

Psychedelics, personality and political perspectives

Nour, M. R., Evans, J., Carhart-Harris, R. L. · Journal of Psychoactive Drugs (2017)

164 cited
The therapeutic potential of psychedelic drugs: past, present, and future

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Phenomenology, Structure, and Dynamic of Psychedelic States

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The Challenging Experience Questionnaire: Characterization of challenging experiences with psilocybin mushrooms

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New World Tryptamine Hallucinogens and the Neuroscience of Ayahuasca

McKenna, D., Riba, J. · Current Topics in Behavioral Neurosciences (2016)

Serotonergic Hallucinogen-Induced Visual Perceptual Alterations

Kometer, M., Vollenweider, F. X. · Behavioral Neurobiology of Psychedelic Drugs (2016)

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