# Study of Gammacore Sapphire for the Acute and Preventive Treatment of Post-Traumatic Headache (GAP-PTH)

> **NCT04071743** · NA · WITHDRAWN · sponsor: **University of Texas Southwestern Medical Center**

## Conditions studied

- Post-Traumatic Headache

## Interventions

- **DEVICE:** gammaCore Sapphire
- **DEVICE:** sham gammaCore Sapphire

## Key facts

- **NCT ID:** NCT04071743
- **Lead sponsor:** University of Texas Southwestern Medical Center
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** WITHDRAWN
- **Start date:** 2020-01-01
- **Primary completion:** 2021-09-01
- **Final completion:** 2021-12-31
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** Primary Investigator left UT Southwestern and was not replaced.
- **Last updated:** 2020-03-10

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04071743

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04071743, "Study of Gammacore Sapphire for the Acute and Preventive Treatment of Post-Traumatic Headache (GAP-PTH)". Retrieved via AI Analytics 2026-07-26 from https://api.ai-analytics.org/clinical/NCT04071743. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*