Skip to content

Joel Castellanos

University of California San Diego Health San Diego California USA.

6 papers in the library · 113 citations · publishing 2022-2024

Papers

Microdosing psilocybin for chronic pain: a case series

Pain September 5, 2022 Matthew Lyes, Joel Castellanos, Timothy Furnish et al. 55 citations

Three individuals with chronic neuropathic pain, unresponsive to standard treatments and impairing quality of life, self-administered low doses of psilocybin. Despite differences in pain origin and preparation potency, all three achieved substantial pain relief without experiencing a psychedelic state or significant side effects. The analgesic effect was enhanced when combined with functional exercise, and in one case, repeated dosing appeared to increase relief, hinting at a possible long-term plasticity-mediated effect. The patients also reduced their reliance on conventional pain medications. These observations suggest psilocybin's therapeutic potential for chronic pain deserves further study.

The Use of Psychedelics in the Treatment of Medical Conditions: An Analysis of Currently Registered Psychedelics Studies in the American Drug Trial Registry.

Cureus September 1, 2022 Joshua S Kurtz, Neal A Patel, Julian L Gendreau et al. 35 citations

A systematic review of clinicaltrials.gov identified 105 registered clinical trials on psychedelic drugs from 2007 to 2020, with 77.1% starting in 2017 or later. The recent uptrend in psychedelic trials mirrors the overall increase in registered trials. Most studies were early-phase (53.3% phase 1, 25.7% phase 2). Common conditions studied include substance addiction, post-traumatic stress disorder, and major depressive disorder. Potential research gaps were identified, such as studying psychedelics for symptomatic treatment during opioid tapering and for depression that does not respond to selective serotonin reuptake inhibitors.

Refractory CRPS pain treated with psilocybin: A case report

Clinical Case Reports September 1, 2024 David S Jevotovsky, Harman Chopra, Court Wing et al. 9 citations

A single patient with complex regional pain syndrome (CRPS) that did not respond to standard treatments experienced substantial pain relief and improved function after taking psilocybin. This case suggests psilocybin may be a promising therapy for refractory CRPS, but more research is needed to determine its effectiveness and the best dosage for chronic pain.

Psilocybin and chronic neuropathic pain: a systematic review

Regional Anesthesia & Pain Medicine August 5, 2024 Harman Chopra, Shravani Durbhakula, Alexander Shustorovich et al. 8 citations

A systematic review of 28 studies on psilocybin for chronic pain management found that most evidence is low or very low quality (76.2% of studies). Several moderate-to-low-quality studies used a 0.14 mg/kg dosing protocol. The results suggest promise for psilocybin in relieving chronic pain, but methodological weaknesses and a lack of high-quality evidence highlight the need for further research with standardized protocols.

Long‐COVID symptoms improved after MDMA and psilocybin therapy: A case report

Clinical Case Reports May 28, 2024 Harman Chopra, Tim Furnish, Monica Verduzco-Gutierrez et al. 6 citations

A 41-year-old fully vaccinated woman with Long-COVID syndrome experienced significant symptom relief after self-medicating with psilocybin and MDMA. Long-COVID, a condition persisting after the acute phase of COVID-19, currently lacks effective holistic treatments. This case suggests potential benefit from these substances, but further research is required to evaluate their safety and efficacy.

Chronic pain education: past, present, and future of psychedelics for the management of chronic pain

Pain Medicine December 10, 2024 Christopher L. Robinson, Pawan Solanki, S Snyder et al.

Psychedelics such as LSD and psilocybin primarily act as 5HT2A receptor partial agonists, influencing mood, perception, and decision-making. Research suggests they can promote synaptic growth, release oxytocin, and exhibit anti-inflammatory effects. MRI studies indicate psilocybin disrupts connections between the anterior hippocampus and the default mode network, potentially explaining therapeutic effects. From 2015 to 2020, psychedelic use among people over age 12 in the United States increased by over 40%, with over 7.1 million reporting use between 2019 and 2020. Despite this, formal training on psychedelics in medical education remains limited. The report outlines a proposed curriculum to prepare future clinicians for integrating psychedelics into practice, emphasizing the need for education on mechanisms, therapeutic uses, risks, and legal considerations.