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Showing 1–15 of 15 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: GammaCore Sham Device Clear all
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Potential Benefit for Non Invasive Vagus Nerve Stimulation Using GammaCore in the Treatment of Raynaud's Phenomena.

NCT03869008
View directory record Official record
Conditions
Raynaud Phenomenon, Primary Raynaud Phenomenon, Raynaud Disease, Raynaud Syndrome
Interventions
gammaCore Sapphire, Sham Device
Device
Lead sponsor
University of Toledo Health Science Campus
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Toledo, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 14, 2025 · Synced Sep 3, 2026, 4:32 PM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Role of Sympathetic Overactivity and Angiotensin II in PTSD and CV

NCT02560805
View directory record Official record
Conditions
Stress Disorders, Post-Traumatic
Interventions
Microneurography, Combat virtual reality video clip, Handgrip Exercise, Cold Pressor Test (CPT), Sodium Nitroprusside (SNP), Phenylephrine, Losartan, Atenolol, Transcutaneous Vagal Nerve Stimulation (tVNS), Sham Transcutaneous Vagal Nerve Stimulation (tVNS)
Procedure · Behavioral · Drug + 1 more
Lead sponsor
Emory University
Other
Eligibility
18 Years to 65 Years
Enrollment
134 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2027
U.S. locations
1
States / cities
Decatur, Georgia
Source: ClinicalTrials.gov public record
Updated May 17, 2026 · Synced Sep 3, 2026, 4:32 PM EDT
Recruiting Not applicable Interventional

Non-invasive Vagal Nerve Stimulation as Novel Treatment to Improve Functional Outcomes in Veterans With Alcohol Use Disorder

NCT06399653
View directory record Official record
Conditions
Alcohol Use Disorder
Interventions
Cervical transcutaneous vagus nerve stimulation (active comparator), Cervical transcutaneous vagus nerve stimulation (sham comparator)
Device
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
21 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Mar 22, 2026 · Synced Sep 3, 2026, 4:32 PM EDT
Completed Not applicable Interventional Results available

Non-invasive Neurostimulation of the Vagus Nerve for the Treatment of Cluster Headache

NCT01792817
View directory record Official record
Conditions
Cluster Headache
Interventions
GammaCore, Sham GammaCore device
Device
Lead sponsor
ElectroCore INC
Industry
Eligibility
18 Years to 75 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
20
States / cities
Santa Monica, California • Stanford, California • Englewood, Colorado + 17 more
Source: ClinicalTrials.gov public record
Updated Dec 16, 2019 · Synced Sep 3, 2026, 4:32 PM EDT
Completed Phase 3 Interventional Results available

Closed Loop Vagal Nerve Stimulation for Patients With Posttraumatic Stress Disorder

NCT02992899
View directory record Official record
Conditions
PostTraumatic Stress Disorder
Interventions
GammaCore/electroCore non-invasive VNS device, Sham gammaCore/electroCore, O-15 water
Device · Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 70 Years
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jun 13, 2021 · Synced Sep 3, 2026, 4:32 PM EDT
Completed Not applicable Interventional Results available

Safety and Efficacy of Non-invasive Vagus Nerve Stimulation in the Treatment of Headache in Subarachnoid Hemorrhage

NCT04126408
View directory record Official record
Conditions
Subarachnoid Hemorrhage, Aneurysmal
Interventions
gammaCore
Device
Lead sponsor
Northwell Health
Other
Eligibility
18 Years to 80 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Manhasset, New York
Source: ClinicalTrials.gov public record
Updated Jan 8, 2024 · Synced Sep 3, 2026, 4:32 PM EDT
Recruiting Not applicable Interventional

Mindfulness in Chronic Kidney Disease

NCT04099992
View directory record Official record
Conditions
Chronic Kidney Diseases
Interventions
Mindfulness-based stress reduction (MBSR), Health enhancement program (HEP), Transcutaneous Vagus Nerve Stimulation (tVNS), Sham-transcutaneous Vagus Nerve Stimulation (tVNS)
Behavioral · Device
Lead sponsor
Emory University
Other
Eligibility
40 Years to 80 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Oct 20, 2025 · Synced Sep 3, 2026, 4:32 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

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

NCT04071743
View directory record Official record
Conditions
Post-Traumatic Headache
Interventions
gammaCore Sapphire, sham gammaCore Sapphire
Device
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 75 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Mar 9, 2020 · Synced Sep 3, 2026, 4:32 PM EDT
Completed Phase 3 Interventional Results available

Non-Invasive Vagal Nerve Stimulation in Opioid Use Disorders

NCT04556552
View directory record Official record
Conditions
Substance-Related Disorders, Substance Use Disorders, Substance Abuse, Intravenous, Substance Withdrawal, Substance Abuse, Opioid-use Disorder, Opioid Use Disorder, Severe, Opioid Use
Interventions
Non invasive VN stimulation (nVNS), Oxygen (15-O) Water, Sham Stimulation
Device · Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 80 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 12, 2023 · Synced Sep 3, 2026, 4:32 PM EDT
Completed Not applicable Interventional

Non-invasive Vagus Nerve Stimulation for the Prevention of Migraines

NCT03716505
View directory record Official record
Conditions
Migraine Disorders
Interventions
gammaCore Sapphire active, gammaCore Sapphire Sham
Device
Lead sponsor
ElectroCore INC
Industry
Eligibility
18 Years to 75 Years
Enrollment
231 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
30
States / cities
Scottsdale, Arizona • Carlsbad, California • Palo Alto, California + 27 more
Source: ClinicalTrials.gov public record
Updated Sep 10, 2020 · Synced Sep 3, 2026, 4:32 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Sympathetic Overactivity in Post-traumatic Stress Disorder

NCT01627301
View directory record Official record
Conditions
Post-traumatic Stress Disorder, Prehypertension
Interventions
Device-Guided Breathing (DGB), Sham DGB, Transcutaneous Vagal Nerve Stimulation (tVNS), Sham tVNS
Device
Lead sponsor
Emory University
Other
Eligibility
18 Years to 65 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2027
U.S. locations
1
States / cities
Decatur, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 14, 2026 · Synced Sep 3, 2026, 4:32 PM EDT
Completed Phase 1 Interventional

Vagus Nerve Stimulation to Treat Moderate Traumatic Brain Injury

NCT02974959
View directory record Official record
Conditions
Traumatic Brain Injury, Acute Brain Injuries
Interventions
gammaCore active device, gammaCore sham device
Device
Lead sponsor
CentraCare
Other
Eligibility
18 Years to 60 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 3, 2021 · Synced Sep 3, 2026, 4:32 PM EDT
Completed Not applicable Interventional Results available

Non-Invasive Neurostimulation for the Prevention of Chronic Migraine

NCT01667250
View directory record Official record
Conditions
Chronic Migraine
Interventions
GammaCore Active Device, GammaCore Sham Device
Device
Lead sponsor
ElectroCore INC
Industry
Eligibility
18 Years to 65 Years
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
6
States / cities
San Francisco, California • Ann Arbor, Michigan • Springfield, Missouri + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 19, 2018 · Synced Sep 3, 2026, 4:32 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Effects of Vagal Nerve Stimulation on Leg Muscle Activity and Posture in Parkinson's Disease

NCT07226284
View directory record Official record
Conditions
PARKINSON DISEASE (Disorder), Parkinson's Disease (PD)
Interventions
Vagal nerve stimulation, No intervention
Device · Other
Lead sponsor
University of Minnesota
Other
Eligibility
21 Years to 76 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 12, 2026 · Synced Sep 3, 2026, 4:32 PM EDT
Recruiting Phase 3 Interventional

Non-invasive Vagal Nerve Stimulation in Opioid Use Disorders UH3

NCT05834478
View directory record Official record
Conditions
Withdrawal Symptoms, Opioid Use Disorder, Opioid Use
Interventions
Transcutaneous Cervical Vagal Nerve Stimulation, Sham Stimulation, [F-18]Fallypride
Device · Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 75 Years
Enrollment
103 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
6
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced Sep 3, 2026, 4:32 PM EDT