Jan W. Schoones, MSc

Directorate of Research and Valorisation, Leiden University Medical Center, Leiden, The Netherlands

  • 2Articles
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  • 2025–2026Active
  • 12Collaborators

About

Jan W. Schoones, MSc, is affiliated with the Directorate of Research and Valorisation at Leiden University Medical Center in The Netherlands. Schoones has published research on addiction, specifically focusing on placebo effects in alcohol, cocaine, and methamphetamine use disorders, as well as on catatonia, including treatment approaches involving (es)ketamine. The work has appeared in Psychiatrist.com between 2025 and 2026, often in collaboration with co-authors such as Albert Batalla and Pim B. van der Meer.

Publications

JCP
Placebo Effects in Alcohol, Cocaine, and Methamphetamine Use Disorder
Meta-Analysis

Placebo Effects in Alcohol, Cocaine, and Methamphetamine Use Disorder

June 10, 2026

Placebo treatment led to reductions in craving scores across all three disorders, although statistical significance was achieved only in alcohol use disorder.
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JCP
Treatment with (Es)ketamine in Catatonia: A Systematic Review of Case Reports
Brief Report

Treatment with (Es)ketamine in Catatonia: A Systematic Review of Case Reports

October 13, 2025

Recent evidence suggests that NMDA receptor antagonists, such as ketamine, may offer benefit in catatonia. This systematic review was conducted to evaluate the efficacy and safety of ketamine and...
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