# Botulinum Toxin Type A Block of the Otic Ganglion in Chronic Cluster Headache: Safety Issues

> **NCT03066635** · PHASE1,PHASE2 · COMPLETED · sponsor: **Norwegian University of Science and Technology** · enrollment: 10 (actual)

## Conditions studied

- Cluster Headache

## Interventions

- **DRUG:** Botulinum Toxin Type A 25 IU
- **DRUG:** Botulinum Toxin Type A 12.5 IU

## Key facts

- **NCT ID:** NCT03066635
- **Lead sponsor:** Norwegian University of Science and Technology
- **Sponsor class:** OTHER
- **Phase:** PHASE1,PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2017-04-18
- **Primary completion:** 2019-09-13
- **Final completion:** 2019-09-13
- **Target enrollment:** 10 (ACTUAL)
- **Last updated:** 2021-06-23

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03066635

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03066635, "Botulinum Toxin Type A Block of the Otic Ganglion in Chronic Cluster Headache: Safety Issues". Retrieved via AI Analytics 2026-06-01 from https://api.ai-analytics.org/clinical/NCT03066635. Licensed CC0.

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