Chronic Cluster Headache: Low-Dose LSD Study

We are investigating whether a low dose of LSD can help reduce the frequency and severity of chronic cluster headaches. This study will assess both its effectiveness and safety compared to a placebo.

What diseases are being studied?

Health conditions and diseases that the clinical trial is designed to study and treat.

Who can participate in the clinical trial?

These questions help us understand your situation so we can let the trial team know whether you might be a potential match. This is not a medical evaluation and is not part of the official screening, the study doctor will make the final decision..

What experimental substances are being tested?

Experimental substances that are being investigated in this clinical trial. These are not yet approved for general use.

Lysergide

Where is the clinical trial being conducted?

Locations and medical facilities where this clinical trial is currently recruiting or conducting research. Select the locations where you would like to participate.

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Leids Universitair Medisch Centrum (LUMC)
Neurologie
Leiden, Netherlands
Canisius Wilhelmina Ziekenhuis
Neurologie
Nijmegen, Netherlands
Radboud universitair medisch centrum Stichting
Pharmacology and Toxicology
Nijmegen, Netherlands
Sponsor: Radboud universitair medisch centrum Stichting
Last updated: Nov 26, 2025

Disclaimer: Parts of this content have been automatically extracted from the EU Clinical Trials registry. While we strive for accuracy, please always contact the trial site or sponsor directly for correct and official information before making any decisions about participation. View on EU Clinical Trials.