Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Completed Not applicable Interventional

Non-invasive Vagus Nerve Stimulation for the Prevention of Migraines

ClinicalTrials.gov ID: NCT03716505

Public ClinicalTrials.gov record NCT03716505. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 19, 2026, 9:11 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Randomized, Multicenter, Double-blind, Parallel, Sham-controlled Study of Non-invasive Vagus Nerve Stimulation for the Prevention of Migraines. (Premium II)

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The purpose of the study is to investigate if the use of gammaCore Sapphire™ device reduces the number of migraines preventatively.

Study identification

NCT ID
NCT03716505
Recruitment status
Completed
Study type
Interventional
Phase
Not applicable
Lead sponsor
ElectroCore INC
Industry
Enrollment
231 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years to 75 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Nov 2, 2018 (Actual)
Primary completion
Sep 9, 2020 (Actual)
Completion
Sep 9, 2020 (Actual)
Last update posted
Sep 11, 2020

2018 – 2020

United States locations

U.S. sites
30
U.S. states
19
U.S. cities
30
Facility City State ZIP Site status
Mayo Clinic Scottsdale Arizona 85259 —
The Research Center of Southern California Carlsbad California 92011 —
Stanford University Medical Center Hoover Pavilion Palo Alto California 94304 —
UCSF Headache Center San Francisco California 94115 —
California Medical Clinic for Headache Santa Monica California 90404 —
Summit Headache and Neurologic Institute, PC Englewood Colorado 80113 —
New England Institute for Neurology and Headache Stamford Connecticut 06905 —
Hartford HealthCare Headache Center West Hartford Connecticut 06107 —
University of Miami, Miller School of Medicine Miami Florida 33136 —
Diamond Headache Clinic Chicago Illinois 60642 —
NorthShore Ambulatory Care Center Glenview Illinois 60026 —
Norton Neurology Louisville Kentucky 40207 —
Crescent City Headache and Neurology Center Chalmette Louisiana 70043 —
Ochsner North Shore Medical Center Covington Louisiana 70433 —
Beth Israel Deaconess Medical Center Boston Massachusetts 02215-5400 —
Michigan Head Pain & Neurological Institute (MHNI) Ann Arbor Michigan 48104 —
Headache Neurology Research Institute Ridgeland Mississippi 39157 —
StudyMetrix, LLC City of Saint Peters Missouri 63303 —
Clinvest Research Springfield Missouri 65810 —
Dartmouth-Hitchcock Medical Center Lebanon New Hampshire 03766 —
Dent Neurologic Institute Amherst New York 14226 —
NY Neurology Associates New York New York 10003 —
Island Neurological Associates Plainview New York 11803 —
Montefiore Headache Center The Bronx New York 10461 —
University Hospitals of Cleveland Cleveland Ohio 44106 —
Thomas Jefferson University Philadelphia Pennsylvania 19107 —
University of Texas Southwestern Medical Center Dallas Texas 75390 —
ClinPoint Trials LLC Waxahachie Texas 75165 —
Medstar Georgetown University Hospital McLean Virginia 22101 —
West Virginia University Hospitals - Department of Neurology Morgantown West Virginia 26506 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03716505, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Sep 11, 2020 · Synced Oct 19, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT03716505 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →