Pim B. van der Meer, MD, PhD

Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands; Department of Psychiatry, University Medical Center Utrecht Brain Center, University Medical Center Utrecht, Utrecht, The Netherlands

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  • 2025–2026Active
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About

Pim B. van der Meer, MD, PhD, is affiliated with the Department of Neurology at Leiden University Medical Center and the Department of Psychiatry at University Medical Center Utrecht Brain Center in The Netherlands. The author has published on addiction, specifically placebo effects in alcohol, cocaine, and methamphetamine use disorders, as well as on the treatment of catatonia with (es)ketamine. Collaborators include Albert Batalla, Jan W. Schoones, Annemieke Dols, Arjen J.C. Slooter, and Arnt Schellekens. Publications appeared in Psychiatrist.com between 2025 and 2026.

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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