Frontiers in Psychiatry
September 1, 2026
Gabrielle Agin-Liebes, Sarah Shnayder, Geena Fram et al.
Introduction Psilocybin treatment has shown promise for treatment-resistant obsessive-compulsive disorder (OCD), yet clinical response is variable. Little is known about the subjective experiences associated with divergent outcomes or the psychological processes differentiating responders from non-responders. Materials and methods A qualitative case comparison was conducted using...
JAMA Psychiatry
May 1, 2026
Amanda Jones, Jennifer Warner-Schmidt, Hannah Kwak et al.
6 citations
The phase 2 data presented here support the development of TSND-201 for posttraumatic stress disorder (PTSD), a disorder for which there is a significant unmet need for rapid-acting and effective treatments. TSND-201 (methylone) is a highly selective, rapid-acting neuroplastogen that releases serotonin, norepinephrine, and dopamine without direct activity at 5-hydroxytryptamine (5-HT) 2A...
February 11, 2026
Sarah Shnayder, Gabrielle Agin-Liebes, Troy Hubert et al.
preprint
Background: Psilocybin treatment has shown promise across a range of psychiatric conditions. Mystical-type experiences during dosing sessions have been shown to predict the clinical effects of psilocybin treatment in depression, anxiety, and addiction. However, no studies have examined whether acute subjective experiences predict treatment response in obsessive-compulsive disorder (OCD)....
January 15, 2026
Benjamin Kelmendi, Thomas G. Adams, Terence H. W. Ching et al.
preprint
Background: Obsessive-compulsive disorder (OCD) affects 2-3% of the population worldwide. 40-60% of patients do not respond to first-line interventions. We evaluated the efficacy and safety of a single dose of psilocybin in patients with treatment-resistant OCD.Methods: In this phase 2, randomized, double-blind trial, we randomly assigned 28 adults with treatment-resistant OCD to receive a...
SSRN Electronic Journal
2026
Ben Kelemndi, Thomas G. Adams, Terence H. W. Ching et al.
1 citation
Background: Obsessive-compulsive disorder (OCD) affects 2–3% of the population worldwide, and 40–60% of patients do not respond to first-line treatments. We evaluated the efficacy and safety of a single dose of psilocybin in adults with treatment-resistant OCD.Methods: In this phase 2, randomised, double-blind, placebo-controlled trial at the Connecticut Mental Health Center, Yale University...
Frontiers in Psychiatry
December 10, 2025
Terence H. W. Ching, B. Stahnke, Sarah Shnayder et al.
3 citations
Introduction The subjective effects of psilocybin on obsessive-compulsive disorder (OCD) are under-explored. Therefore, we conducted a qualitative study of participant experiences from the first randomized placebo-controlled trial of single-dose psilocybin combined with unstructured and non-directive support for individuals with treatment-refractory OCD. Our research explored how participants...
Journal of Psychedelic Studies
May 15, 2025
Terence H. W. Ching, Benjamin Kelmendi
4 citations
AbstractBackgroundThere is a need to systemically diversify psychedelic clinical trials, considering the growing interest in in the therapeutic potential of psychedelics within Black, Indigenous, and Peoples of Color (BIPOC) and queer communities. Doing so contributes to a more inclusive foundation of evidence-based research and addresses ethical considerations surrounding anticipated demand...
Psychedelic Medicine
January 20, 2025
Marianna Graziosi, Gabrielle Agin-Liebes, Mary P Cosimano et al.
9 citations
Introduction: Serotonergic psychedelics, serotonin 2A receptor agonists such as psilocybin that can result in substantially altered states of consciousness, are used in recreational and research settings. The safety of psychedelic experiences in research settings is supported by controlled physical environments, presence of clinical and medical staff to address emergent issues, screening for...
Frontiers in Public Health
December 11, 2024
Amy Bartlett, Challian Christ, Bradford Martins et al.
8 citations
The intersection of queer identity and psychedelics has not been thoroughly explored by the research community, historically or in the present day. With growing access to legal psychedelic therapies, it is essential that queer psychedelic experiences are understood sufficiently by clinicians in order to provide the most safe and effective care possible. Psychedelics and queerness are...
Int Rev Psychiatry
September 11, 2024
Mary E. Yaden, Terence H. W. Ching, Noam Goldway et al.
2 citations
OBJECTIVE: The growth of psychedelic medicine creates new challenges in psychiatric education as physicians may soon be responsible for prescribing a number of psychedelic interventions. Despite this growing need for educated providers, very little is known about the training psychiatry residents receive in psychedelic medicine. We conducted a survey to determine the current educational...
Psychiatry Research
June 1, 2024
Gayle Maloney, Terence H. W. Ching, Stephen A. Kichuk et al.
3 citations
Novel treatments are required for the 30-50% of individuals with obsessive-compulsive disorder (OCD) who remain resistant to first-line pharmacological and psychotherapeutic treatments. Recent pilot data suggest benefit from psilocybin-assisted psychotherapy (PAP) and from imagery rescripting (ImRs). We explore psychological mechanisms of change underpinning both interventions that appear to...
Frontiers in Psychiatry
February 16, 2024
Terence H. W. Ching, Lucia Amoroso, Calvin Bohner et al.
correction
[This corrects the article DOI: 10.3389/fpsyt.2023.1278823.].
Frontiers in Psychiatry
January 9, 2024
Terence H. W. Ching, Lucia Amoroso, Calvin Bohner et al.
9 citations
Background To date, few randomized controlled trials of psilocybin with non-directive support exist for obsessive-compulsive disorder (OCD). Results and participant feedback from an interim analysis of an ongoing single-dose trial (NCT03356483) converged on the possibility of administering a higher fixed dose and/or more doses of psilocybin in future trials for presumably greater benefits....
Journal of Psychoactive Drugs
2024
Raymond Feng, Terence H. W. Ching, Amy Bartlett et al.
Psychedelic-assisted psychotherapy (PAP) is gaining renewed interest as a treatment for various mental disorders. However, there has been limited Black, Indigenous, and People of Color (BIPOC) representation in PAP clinical trials, signaling the need for culturally consonant communication about the efficacy and safety of PAP. We randomly assigned 321 BIPOC and 301 non-Hispanic White...
Psychedelic Med (New Rochelle)
December 13, 2023
Kelley C O'Donnell, Daniel E. Roberts, Terence H. W. Ching et al.
13 citations
What Is in a Name? The Many Meanings of "Psychedelic".
Journal of Mood and Anxiety Disorders
December 1, 2023
Sierra Carter, Grace Packard, Callan Coghlan et al.
18 citations
The present study investigated differences in perceptions of psychedelic-assisted therapy between Black and White Americans, as well as factors that may influence these perceptions. A final sample of 294 adults (42% female, 44% Black/African American or Mixed Race (of Black/African ancestry), 56% White American; Mage = 36.3 years) completed an online survey which assessed baseline knowledge and...
Frontiers in Psychiatry
April 25, 2023
Rachael Grazioplene, Calvin Bohner, Giuliana DePalmer et al.
27 citations
Background Psilocybin may help treat obsessive–compulsive disorder (OCD). To date, only one open-label study of psilocybin for OCD exists, necessitating further investigation with a randomized controlled design. The neural correlates of psilocybin’s effects on OCD have also not been studied. Objectives This first-of-its-kind trial aims to evaluate the feasibility, safety, and tolerability of...
March 17, 2023
Terence H. W. Ching, Rachael Grazioplene, Christopher Pittenger et al.
6 citations
preprint
The Yale Program for Psychedelic Science (YPPS) supports a multi-disciplinary research community dedicated to investigating the effects of psychedelic substances on brain function, cognition, and behavior, including their therapeutic potential in treating neuropsychiatric conditions. In support of this mission, YPPS is testing the safety and efficacy of psilocybin, administered in conjunction...
Heliyon
December 1, 2022
Benjamin Kelmendi, Giuliana DePalmer, Gayle Maloney et al.
34 citations
Classic psychedelics, such as psilocybin, act on the brain's serotonin system and produce striking psychological effects. Early work in the 1950s and 1960s and more recent controlled studies suggest benefit from psychedelic treatment in a number of conditions. A few case reports in recreational users and a single experimental study suggest benefit in patients with obsessive-compulsive disorder...
October 5, 2022
Terence H. W. Ching, Stephen A. Kichuk, Giuliana DePalmer et al.
5 citations
preprint
The Yale Program for Psychedelic Science (YPPS) is testing the safety and efficacy of psilocybin, administered in conjunction with non-directive psychological support, as a treatment for certain neurological and psychiatric conditions. The study, HIC: 200020355 (Neural correlates of the effects of psilocybin in obsessive-compulsive disorder: A double-blind, placebo-controlled study), will...
Journal of Psychopharmacology
June 21, 2022
Terence H. W. Ching, Monnica T. Williams, Julie B. Wang et al.
29 citations
Background: Limited ethnoracial diversity in previous ±3,4-methylenedioxymethamphetamine-assisted therapy (MDMA-AT) trials for posttraumatic stress disorder (PTSD) has prompted questions concerning whether Black, Indigenous, and People of Color (BIPOC) also benefit from this treatment. Methods: Secondary analysis was conducted using a modified intent-to-treat sample pooled from two Phase 2...
Journal of Humanistic Psychology
February 10, 2022
Terence H. W. Ching, Monnica T. Williams, Sara Reed et al.
10 citations
MDMA (±3,4-methylenedioxymethamphetamine)-assisted therapy (MDMA-AT) was shown in previous clinical trials to have promising efficacy and safety for alleviating treatment-resistant posttraumatic stress disorder (PTSD). However, due to low ethnoracial diversity, the question remains as to whether ethnoracial minority participants would benefit similarly. Thus, a mixed-methods case study was...
Journal of Psychoactive Drugs
January 11, 2022
Terence H. W. Ching, Alan K. Davis, Yitong Xin et al.
34 citations
There is a need to understand ways in which Asians in North America attempt to heal from racial trauma, given their well-documented high risk of exposure and associated adverse mental health outcomes. We conducted a secondary analysis of Asians from a survey of people of color in North America who have consumed psychedelics in response to racial discrimination. Ninety-two Asian participants...
Journal of Psychedelic Studies
July 24, 2019
Terence H. W. Ching
The road to the current psychedelic renaissance in research on ±3,4-methylenedioxymethamphetamine (MDMA) – the active ingredient of the drug Ecstasy – for addressing treatment-resistant post-traumatic stress disorder has been fraught with political and academic bias, as well as cultural stigma among underserved populations, all of which serve as barriers to minority inclusion and participation....