# Prophylactic Effects of Psilocybin on Chronic Cluster Headache

> **NCT04280055** · PHASE1,PHASE2 · TERMINATED · sponsor: **Gitte Moos Knudsen** · enrollment: 10 (actual)

## Conditions studied

- Cluster Headache

## Interventions

- **DRUG:** Psilocybin

## Key facts

- **NCT ID:** NCT04280055
- **Lead sponsor:** Gitte Moos Knudsen
- **Sponsor class:** OTHER
- **Phase:** PHASE1,PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** TERMINATED
- **Start date:** 2020-01-21
- **Primary completion:** 2020-11-01
- **Final completion:** 2022-06-01
- **Target enrollment:** 10 (ACTUAL)
- **Why stopped:** Not possible to achieve the anticipated no. of patients due to Covid-19 pandemic
- **Last updated:** 2022-08-10


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04280055

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04280055, "Prophylactic Effects of Psilocybin on Chronic Cluster Headache". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT04280055. Licensed CC0.

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