Research Keyword: obsessive-compulsive disorder

Psychedelics for the Treatment of Obsessive–Compulsive Disorder: Efficacy and Proposed Mechanisms

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Psilocybin mushrooms show promise as a treatment for obsessive-compulsive disorder (OCD), a condition where people experience unwanted intrusive thoughts and compulsive behaviors. Current standard treatments with antidepressants don’t work for many patients and take weeks to show effects. Early research suggests psilocybin may reduce OCD symptoms quickly and works in treatment-resistant cases, though more rigorous studies are needed to confirm its effectiveness and understand how it works in the brain.

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Premorbid characteristics of the SAPAP3 mouse model of obsessive-compulsive disorder: behavior, neuroplasticity, and psilocybin treatment

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This research examined young genetically modified mice that lack the SAPAP3 gene to understand early signs of obsessive-compulsive disorder-like behavior. The study found that these juvenile mice showed anxiety-like behaviors before developing the excessive grooming typical of the adult model. Surprisingly, psilocybin treatment—which works in adult mice—did not help reduce anxiety in the younger mice, suggesting that the brain needs to mature for this treatment to be effective.

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Effect of psilocybin on marble burying in ICR mice: role of 5-HT1A receptors and implications for the treatment of obsessive-compulsive disorder

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Researchers tested whether psilocybin mushrooms could help treat obsessive-compulsive disorder (OCD) using mice. They found that psilocybin reduced compulsive burying behavior in mice, similar to how approved OCD medications work. The study revealed that this anti-compulsive effect works through different brain mechanisms than previously thought, and that combining psilocybin with another drug called buspirone might block psychedelic effects while keeping therapeutic benefits.

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Safety, tolerability, and clinical and neural effects of single-dose psilocybin in obsessive–compulsive disorder: protocol for a randomized, double-blind, placebo-controlled, non-crossover trial

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This study tests whether psilocybin (the active compound in certain mushrooms) can help people with obsessive-compulsive disorder who haven’t responded to standard treatments. In a carefully controlled trial, participants receive either a single dose of psilocybin or a placebo while receiving psychological support, with their brain activity and symptoms monitored. The research aims to determine if this novel treatment is safe and whether it could work faster than existing medications for this difficult-to-treat condition.

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Striking long-term beneficial effects of single dose psilocybin and psychedelic mushroom extract in the SAPAP3 rodent model of OCD-like excessive self-grooming

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Researchers tested whether psilocybin (the active compound in magic mushrooms) could treat obsessive-compulsive disorder using genetically modified mice that exhibit excessive grooming similar to OCD in humans. A single dose of psilocybin or psychedelic mushroom extract significantly reduced the excessive grooming behavior and anxiety in these mice, with benefits lasting up to six weeks. These findings suggest psilocybin may be a promising new treatment for OCD in humans, offering longer-lasting effects from a single dose compared to current medications.

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Safety, feasibility, tolerability, and clinical effects of repeated psilocybin dosing combined with non-directive support in the treatment of obsessive-compulsive disorder: protocol for a randomized, waitlist-controlled trial with blinded ratings

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This clinical trial is investigating whether psilocybin (a psychoactive compound found in certain mushrooms) combined with supportive counseling can help people with treatment-resistant obsessive-compulsive disorder. Researchers will give participants two doses of psilocybin while providing non-directive psychological support to help them process their experiences. The study aims to determine whether this approach is safe, tolerable, and effective at reducing OCD symptoms, and to understand the psychological mechanisms that might explain how it works.

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