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James Rucker

King's College London, South London and Maudsley NHS Foundation Trust

54 papers in the library · 4,071 citations · publishing 2015-2026

Papers

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Impact of Psilocybin on Motor Function in Healthy Participants: A Phase 1, Randomised, Triple-Blind, Dose-Finding Study

CNS Drugs August 7, 2026 Chiranth Bhagavan, O. Carter, Glenn Nielsen et al.

BACKGROUND: Psychedelics exert widespread effects on brain activity, but their impact on motor function is unclear. This is clinically relevant given the emerging interest in psychedelic-assisted physical therapy for disorders of motor function. This study examined the feasibility and safety of administering movement tasks following low-to-moderate doses of psilocybin in healthy volunteers....

Psilocybin-assisted therapy for treatment-resistant major depressive disorder in a public healthcare setting: a randomized controlled trial

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...

Psychological change processes in alcohol use disorder: A qualitative study of 5‐methoxy‐ N , N ‐dimethyltryptamine (5‐MeO‐DMT) with cognitive behavioural therapy

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...

Childhood trauma and psychological outcomes following psychedelic use: a scoping review

npj Mental Health Research July 30, 2026 Lorraine Li, Paige Seath, Nadav Liam Modlin et al.

Abstract Research examining psychological outcomes following psychedelic use has grown substantially, yet the role of childhood trauma in shaping these responses remains insufficiently understood. This scoping review mapped the literature examining childhood trauma in relation to post-psychedelic psychological outcomes. Thirty-four sources met inclusion criteria and investigated substances...

How to set up a psychedelic study: Unique considerations for research involving human participants.

Neuroscience and Biobehavioral Reviews July 1, 2026 Marcus J. Glennon, Catherine Bird, Prateek Yadav et al. 2 citations

Setting up a psychedelic study can be a long, arduous, and Kafkaesque process. Researchers are faced with a host of challenges in this rapidly evolving field, necessitating a range of considerations that remain largely unstandardised. Many of the complexities inherent to psychedelic research also challenge existing assumptions around, for example, approaches to psychiatric prescribing, the...

Psychodynamic Perspectives on Psychedelic States and Treatment Contexts: A Conceptual and Clinical Introduction.

Psychodynamic psychiatry June 1, 2026 Nadav Liam Modlin, Zsofia Elek, Carolina Maggio et al.

Recent clinical trials have suggested the safety and efficacy of psychedelic therapy for treatment-resistant depression, posttraumatic stress disorder, addiction, and end-of-life distress. While neurobiological mechanisms such as 5-HT2A receptor activation, increased neural entropy, and default mode network modulation have been well-characterized, significantly less attention has been given to...

A systematic review of the pharmacokinetics of classical serotonergic psychedelic compounds in healthy adult subjects.

Journal of psychopharmacology (Oxford, England) May 29, 2026 Elliot Hampsey, Kirsty Martin, Michail Kalfas et al.

Despite renewed investigations into classical psychedelic compounds, their pharmacokinetic profiles remain incompletely understood. This systematic review collated data from healthy adult volunteers on the pharmacokinetic properties of lysergic acid diethylamide (LSD), psilocybin, dimethyltryptamine (DMT), mescaline, and 5-methoxy-N,N-dimethyltryptamine (5-MEO-DMT). We identified 32 eligible...

Characterising the clinical associations of hallucinogen persisting perception disorder: a retrospective cohort study

Translational Psychiatry April 24, 2026 Matt Butler, Ellen Moore, James Rucker et al. 1 citation

Hallucinogen persisting perception disorder (HPPD) is characterised by episodes of altered perception linked to past psychoactive drug use, accompanied by distress and functional impairment. To date, clinical characterisation has been limited in scale. Using TriNetX, a global federated health research network of electronic health records, we conducted a retrospective cohort study comparing...

A phase 2 uncontrolled, open-label study of intranasal BPL-003 (5-methoxy- N,N -dimethyltryptamine) in patients with treatment-resistant depression

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.

Effects of psilocybin on personality, psychiatric symptoms, and values: Exploring mediating effects of the acute psychedelic experience

Journal of Psychopharmacology January 26, 2026 Jess Kerr-Gaffney, Samuel Myrtle, Famia Askari et al. 2 citations

Background: Changes in well-being, personality, and personal values have been documented post-psilocybin; however, evidence from placebo-controlled trials is limited. Aims: To examine the effects of psilocybin versus placebo on psychiatric symptoms, personality, and personal values in healthy participants. Potential mediators were also explored. Methods: This secondary analysis used data from a...

5‐Methoxy‐ N , N ‐dimethyltryptamine (5‐MeO‐DMT) for alcohol use disorder: An open‐label, phase 2, proof‐of‐concept, clinical trial

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,...

Investigational psilocybin treatment for post-traumatic stress disorder: a qualitative study of participant experience, trauma engagement, and differences from standard treatment.

EClinicalMedicine December 1, 2025 Nadav Liam Modlin, Victoria Williamson, Guy M. Goodwin et al. 2 citations

Post-traumatic stress disorder (PTSD) is a debilitating condition leading to significant personal and societal burden. Standard treatments frequently demonstrate limited efficacy, leading to persistent symptoms and high dropout rates. Psilocybin has shown promise in treating depression, a condition that is often comorbid with PTSD. We aimed to explore participant experiences of psilocybin...

Psilocybin-assisted physiotherapy for refractory motor functional neurological disorder: protocol for a randomised dose-comparison pilot study

Acta Neuropsychiatrica November 4, 2025 Chiranth Bhagavan, Alexander Bryson, Olivia Carter et al. 4 citations

Abstract Background: Motor functional neurological disorder (FND) is a common illness associated with significant functional impairment. There are no effective pharmacotherapies, and despite the early promise of physiotherapy studies, many suffer disabling symptoms in the long term. There is a theoretical rationale for combining psychedelics with physiotherapy; however, the potential benefit of...

Self-Integration after Recreational Psychedelic Use: Is it a Bulwark against Identity Disturbance?

Journal of Humanistic Psychology September 25, 2025 Jack Versace, James Rucker

As recreational psychedelics increase, it is important to understand possible consequences, like identity disturbance, and how they may be mitigated with harm-reduction techniques. For example, people may spend time in nature or engage in journaling after recreational use to “self-integrate.” The present study aimed to investigate differences in measures of well-being and identity disturbance...

A lexicon for psychedelic research and treatment

Drug Science Policy and Law September 1, 2025 David Nutt, David Erritzøe, Anne Katrin Schlag et al. 9 citations

Psychedelics are undergoing a clinical research renaissance, with compounds such as psilocybin advancing to Phase 3 trials for treatment-resistant depression and receiving fast-track or breakthrough designations from regulatory agencies. Despite this progress, the field lacks standardized terminology to guide clinical development, dosing, safety monitoring, and regulatory classification. Here,...

Investigating the safety and tolerability of single-dose psilocybin for post-traumatic stress disorder: A nonrandomized open-label clinical trial

Journal of Psychopharmacology August 29, 2025 Niall M. Mcgowan, James Rucker, Rachel Yehuda et al. 10 citations

Background: Post-traumatic stress disorder (PTSD) is a debilitating condition for which there are few efficacious treatments. Psilocybin is being studied for use in treatment-resistant depression but has not yet been investigated in PTSD. Aims: The trial’s primary outcome was to investigate the safety and tolerability of single-dose psilocybin in participants with PTSD. Methods: This was a...

Perspectives on Trauma Treatment, Self-Management Strategies, and Attitudes Toward Psychedelic Therapies in Individuals with Psychological Trauma Symptoms

Psychiatry and Clinical Psychopharmacology August 14, 2025 Nadav Liam Modlin, Jessica L Maples-Keller, Maria Sarang et al.

Background: Current trauma treatment options often fail to meet patients' needs. Despite the availability of established interventions, many trauma treatments fail to adequately meet patients' needs. In parallel, there has been renewed scientific and public interest in the therapeutic potential of psychedelics and related compounds, accompanied by increasing unsupervised use. This underscores...

Urological symptoms following ketamine treatment for psychiatric disorders: A systematic review.

Journal of psychopharmacology (Oxford, England) June 30, 2025 Jess Kerr-Gaffney, Anna Tröger, Alice Caulfield et al. 6 citations

Ketamine has emerged as a putative rapid-acting treatment option for psychiatric disorders, particularly treatment-resistant depression. Chronic recreational ketamine use is associated with ketamine-induced urological toxicity, raising concerns over the safety of repeated ketamine treatments. This systematic review aimed to synthesise urological findings from clinical trials and observational...

Clinical conceptualisation of PTSD in psilocybin treatment: disrupting a pre-determined and over-determined maladaptive interpretive framework

Therapeutic Advances in Psychopharmacology June 8, 2025 Nadav Liam Modlin, Victoria Williamson, Carolina Maggio et al. 1 citation

Post-traumatic stress disorder (PTSD) and associated trauma and stressor-related disorders are common and debilitating, presenting significant treatment challenges due to their complex interplay of biological, cognitive, affective, somatic and social factors. Current treatments, while advancing and effective, yield limited efficacy for many individuals, underscoring the need for novel...

An international Delphi consensus for reporting of setting in psychedelic clinical trials.

Nature Medicine June 3, 2025 Chloé Pronovost-Morgan, Kyle T. Greenway, Leor Roseman et al. 26 citations

Psychedelic substances exhibit complex interactions with the 'set and setting' of use, that is, the mental state of the user and the environment in which a psychedelic experience takes place. Despite these contextual variables' known importance, psychedelic research has lacked methodological rigor in reporting extra-pharmacological factors. This study aimed to generate consensus-based...

Probing the functional magnetic resonance imaging response to psilocybin in functional neurological disorder (PsiFUND): study protocol

Wellcome Open Research April 22, 2025 Matthew Butler, Catherine Bird, Carolina Maggio et al. 3 citations

Background Functional neurological disorder (FND) is a common cause of neurological symptoms including seizures and movement disorders. It can be debilitating, is associated with high health and social care costs, and can have a poor prognosis. Functional magnetic resonance imaging (fMRI) has suggested FND is a multi-network disorder. Converging evidence suggests that other mechanisms including...

How to set up a psychedelic study: Unique considerations for research involving human participants

arXiv Preprint Archive March 28, 2025 Marcus J. Glennon, Catherine Bird, Prateek Yadav et al.

Setting up a psychedelic study can be a long, arduous, and kafkaesque process. This rapidly-developing field poses several unique challenges for researchers, necessitating a range of considerations that have not yet been standardised. Many of the complexities inherent to psychedelic research also challenge existing assumptions around, for example, approaches to psychiatric prescribing, the...

Psychedelic‐assisted treatment for substance use disorder: A narrative systematic review

Addiction January 30, 2025 Theodore Piper, Francesca Small, Michael Kelleher et al. 27 citations

Abstract Background and aims This is the first systematic review of the extant literature on all major psychedelic‐assisted treatment for alcohol use disorder (AUD), tobacco use disorder (TUD) and other substance use disorders (SUD). We aimed to summarise the evidence for efficacy of psychedelic‐assisted treatment for AUD, TUD, and SUD; to evaluate its quality; and to offer recommendations for...

Participants’ Experience of Psychedelic Integration Groups and Processes: A Qualitative Thematic Analysis

Psychedelic Medicine November 26, 2024 Nadav Liam Modlin, Tyler McPhee, Nira Zazon et al. 5 citations

Background: Psychedelics such as psilocybin, lysergic acid diethylamide, and 3,4-methylenedioxymethamphetamine are increasingly recognized for their potential therapeutic benefits in treating complex and chronic mental health conditions. Growing public interest in psychedelics may drive increased consumption outside of medically supervised clinical trials. Correspondingly, legality issues and...

Preclinical models for evaluating psychedelics in the treatment of major depressive disorder.

British Journal of Pharmacology October 28, 2024 Laith Alexander, Dasha Anderson, Luke Baxter et al. 11 citations

Psychedelic drugs have seen a resurgence in interest as a next generation of psychiatric medicines with potential as rapid-acting antidepressants (RAADs). Despite promising early clinical trials, the mechanisms which underlie the effects of psychedelics are poorly understood. For example, key questions such as whether antidepressant and psychedelic effects involve related or independent...