Nature Medicine
August 6, 2026
James Rucker, Tim Mantingh, Jess Kerr-Gaffney et al.
1 citation
Psilocybin-assisted therapy may be a promising new treatment for treatment-resistant depression. We examined the feasibility of administering a single 25-mg dose of psilocybin or placebo with psychological support in a randomized controlled trial design with 6 weeks of follow-up. A two-arm, double-blind, randomized, placebo-controlled feasibility trial was conducted at one National Health...
Addiction
August 3, 2026
Mathieu Seynaeve, Fiona Dunbar, Anna O. Ermakova et al.
BACKGROUND AND AIMS: This study qualitatively explored psychological change processes as described by participants and therapists within a phase 2a clinical trial evaluating the safety, tolerability, and preliminary efficacy of a single dose of intranasal 5-methoxy-N,N-dimethyltryptamine (5-MeO-DMT; BPL-003) administered alongside psychological support and manualised cognitive behavioural...
CNS Drugs
March 24, 2026
Mathieu Seynaeve, Fiona Dunbar, Chandni Hindocha et al.
Intranasal 5-MeO-DMT Concomitant with SSRI for Treatment-Resistant Depression: A Proof-of-Concept Trial.
Journal of Psychopharmacology
February 27, 2026
Claire T. Roberts, Mathieu Seynaeve, Anna O. Ermakova et al.
Results confirmed the safety profile of BPL-003 in a TRD population. A rapid and sustained reduction in MADRS score was observed over 12 weeks, suggesting BPL-003 could be beneficial in TRD, warranting investigation in larger controlled trials.
American Journal of Therapeutics
February 20, 2026
Burton J. Tabaac, Kenneth Shinozuka, Anne Weisman et al.
Emerging evidence supports 5-MeO-DMT as a promising, ultra-short-acting psychedelic for treatment-resistant depression and other psychiatric conditions, warranting larger RCTs.
Addiction
December 10, 2025
John Marsden, Michael Kelleher, Fiona Dunbar et al.
2 citations
Abstract Background and Aims Psychedelic drugs may help treat alcohol use disorder (AUD). This study evaluated BPL‐003, a novel intranasal powder formulation of 5‐methoxy‐N,N‐dimethyltryptamine (5‐MeO‐DMT) benzoate salt, in people with moderate–severe AUD enrolled in a standard of care, 10‐week programme of relapse‐prevention oriented Cognitive Behavioural Therapy (CBT). Design Open‐label,...
Sci Rep
November 6, 2025
Anna O. Ermakova, Fiona Dunbar, Mathieu Seynaeve et al.
3 citations
5-Methoxy-N,N-dimethyltryptamine (5-MeO-DMT) is a naturally occurring psychedelic tryptamine. Plants containing 5-MeO-DMT have been used throughout history, and in recent years both synthetic and toad-derived 5-MeO-DMT use is being increasingly reported in naturalistic settings as well as clinical research. However, its subjective effects are not well characterised, and no qualitative research...
Headache The Journal of Head and Face Pain
October 9, 2024
James Rucker, Matthew Butler, Sadie Hambleton et al.
Matt Butler has nothing to declare. Sanjay Cheema: Received a research fellowship sponsored by Abbott. Giorgio Lambru: Co-chair of the Medical Advisory Board of the Trigeminal neuralgia Association (TNA) UK; received personal fees from Abbvie, Teva, Novartis, Eli Lilly, Lundbeck; participated in clinical trials as principal investigator for Novartis, Eli Lilly, Teva, Nevro. Manjit Matharu:...
Headache The Journal of Head and Face Pain
September 20, 2024
James Rucker, Sadie Hambleton, Catherine Bird et al.
12 citations
Abstract Background Short‐lasting unilateral neuralgiform headache attacks (SUNHA) are trigeminal autonomic cephalalgias that feature intense and recurrent paroxysms of pain and autonomic symptoms. Many patients are left with debilitating symptoms despite best‐available treatment. Psychedelics, such as the serotonin 2A partial agonist psilocybin, have shown promise in related disorders such as...
Journal of psychopharmacology (Oxford, England)
August 1, 2024
James Jonathan Rucker, Claire T. Roberts, Mathieu Seynaeve et al.
32 citations
To investigate the safety, tolerability, pharmacokinetics (PK) and pharmacodynamics (PD) of BPL-003, a novel intranasal benzoate salt formulation of 5-methoxy-N,N-dimethyltryptamine (5-MeO-DMT), in healthy participants. In all, 44 psychedelic-naïve participants enrolled in the double-blind, placebo-controlled single ascending dose study (1-12 mg BPL-003). Concentrations of 5-MeO-DMT and its...
Tijdschrift voor Geneeskunde
July 24, 2023
E. Geleyn, Kim P. C. Kuypers, Mathieu Seynaeve et al.
Classic psychedelics: safety, side effects and medication interactions Given the growing scientific and social interest in the use of classic psychedelics for psychiatric disorders, physicians are increasingly confronted with patients resorting to these drugs. To this date, treatment with classic psychedelics within a medical framework is non-existent. Patients could seek such a treatment...
The New England journal of medicine
November 3, 2022
Guy M. Goodwin, Scott T Aaronson, Oscar Alvarez et al.
1,095 citations
Psilocybin is being studied for use in treatment-resistant depression. In this phase 2 double-blind trial, we randomly assigned adults with treatment-resistant depression to receive a single dose of a proprietary, synthetic formulation of psilocybin at a dose of 25 mg, 10 mg, or 1 mg (control), along with psychological support. The primary end point was the change from baseline to week 3 in the...
Journal of Neuropsychiatry
May 17, 2022
Matthew Butler, Mathieu Seynaeve, Abigail Bradley‐Westguard et al.
6 citations
Objective: Functional neurological disorder (FND) causes a high burden of disability and distress. Although it is a common disorder, there is a pressing need for improved access to evidence-based treatments. With difficulties in finding effective treatment, some people with FND may seek alternative means of symptom relief, such as legal and illicit psychoactive substances, although the...
Journal of Integrative Neuroscience
September 30, 2021
Fiona Harding, Mathieu Seynaeve, Johanna Keeler et al.
18 citations
Approximately 1.25 million people in the UK suffer from an eating disorder, yet the treatment options show limited efficacy, warranting the need for novel approaches. This study aimed to investigate the perspectives of people with eating disorders on the use of complementary therapies and psychedelic research and treatment. Two hundred participants with eating disorders took part in this web...
Journal of Neurology Neurosurgery & Psychiatry
July 20, 2020
Matthew Butler, Mathieu Seynaeve, Timothy R. Nicholson et al.
Aims Functional neurological disorder (FND), formerly known as conversion disorder, causes a high burden of disability and distress, and is amongst the most commonly encountered conditions in neurology clinics and neuropsychiatry services, yet the therapeutic evidence base is limited. Research into psychedelics such as psilocybin and lysergic acid diethylamide (LSD) is currently being...
Therapeutic Advances in Psychopharmacology
2020
Matthew Butler, Mathieu Seynaeve, Timothy R. Nicholson et al.
38 citations
Functional neurological disorder (FND), formerly known as conversion disorder, causes a high burden of disability and distress, and is amongst the most commonly encountered conditions in neurology clinics and neuropsychiatric services, yet the therapeutic evidence base is somewhat limited. There has been recent interest in the therapeutic potential of psychedelics such as psilocybin and...
Burton J. Tabaac, Kenneth Shinozuka, Anne Weisman et al.
preprint
Background: 5-Methoxy-N,N-dimethyltryptamine (5-MeO-DMT), also officially known as Mebufotenin, is a naturally occurring serotonergic psychedelic alkaloid found in the venom of the Sonoran Desert toad (Incilius alvarius) and various plant species. Areas of Uncertainty: Trace levels of 5-MeO-DMT may be produced endogenously in humans, but its physiological role remains unclear. Safety profiles...