# Ultrasound Greater Occipital Nerve Block at C2 Level Compared to Landmark-based Greater Occipital Nerve Block

> **NCT03478735** · NA · COMPLETED · sponsor: **Mayo Clinic** · enrollment: 32 (actual)

## Conditions studied

- Occipital Neuralgia
- Cervicogenic Headache
- Migraine Without Aura

## Interventions

- **PROCEDURE:** Ultrasound Guided Greater Occipital Nerve Block at C2
- **PROCEDURE:** Landmark-Based Greater Occipital Nerve Block

## Key facts

- **NCT ID:** NCT03478735
- **Lead sponsor:** Mayo Clinic
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2017-07-17
- **Primary completion:** 2021-06-14
- **Final completion:** 2021-06-14
- **Target enrollment:** 32 (ACTUAL)
- **Last updated:** 2021-06-15


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03478735

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03478735, "Ultrasound Greater Occipital Nerve Block at C2 Level Compared to Landmark-based Greater Occipital Nerve Block". Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/clinical/NCT03478735. Licensed CC0.

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