Independent directory Public ClinicalTrials.gov records United States
Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Sep 30, 2026, 10:38 AM EDT

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

Showing 25–37 of 37 matching trials from the live ClinicalTrials.gov search.
Conditions
Functional Gastrointestinal Disorders, Hypermobile Ehlers-Danlos Syndrome, Postural Orthostatic Tachycardia Syndrome, Autonomic Nervous System Disease, Autonomic Nervous System Imbalance
Interventions
Percutaneous vagal nerve stimulation (pVNS) device, Acoustic vagal nerve stimulation (aVNS) treatment
Device · Other
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
10 Years to 18 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Conditions
Opioid-use Disorder, Opioid Withdrawal
Interventions
Sparrow Ascent Therapy System, Lofexidine, Extended-release injectable naltrexone
Device · Drug
Lead sponsor
Spark Biomedical, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
108 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
4
States / cities
Rancho Mirage, California • Crownsville, Maryland • Center City, Minnesota + 1 more
Completed No phase listed Interventional Accepts healthy volunteers Results available

Examining Transcutaneous Vagal Nerve Stimulation as a Facilitator of Social Bonding

NCT05899413
Conditions
Vagus Nerve Stimulation
Interventions
Transcutaneous vagal nerve stimulation
Device
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 39 Years
Enrollment
160 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
San Francisco, California
Active, not recruiting Not applicable Interventional

Neurostimulation to Improve NOWS Outcomes

NCT05129020
Conditions
Neonatal Opioid Withdrawal Syndrome, Neonatal Abstinence Syndrome
Interventions
Sparrow Fledging Therapy System, Sham Sparrow Fledging Therapy System
Device
Lead sponsor
Spark Biomedical, Inc.
Industry
Eligibility
33 Weeks to 1 Year
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
3
States / cities
Charleston, South Carolina • Dallas, Texas • San Antonio, Texas
Conditions
Heavy Menstrual Bleeding
Interventions
Volta System
Device
Lead sponsor
Spark Biomedical, Inc.
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Dallas, Texas
Conditions
Opioid Withdrawal, Opioid Use Disorder (OUD)
Interventions
Sparrow Link (Active tAN), Sparrow Link (Sham tAN)
Device
Lead sponsor
Payel Roy
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Conditions
Abdominal Pain (AP), Disorders of Gut-brain Interaction
Interventions
Transcutaneous auricular neurostimulation
Device
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
12 Years to 18 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Conditions
Posttraumatic Stress Disorder, Opioid Use Disorder
Interventions
Sparrow Ascent tAN, Sparrow Ascent Active Sham
Device
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Cape Girardeau, Missouri
Completed Not applicable Interventional Results available

tAN to Mitigate Withdrawal Behaviors in Neonates

NCT04588519
Conditions
Neonatal Abstinence Syndrome
Interventions
Spark Biomedical Roo Transcutaneous Auricular Neurostimulation (tAN) System
Device
Lead sponsor
Spark Biomedical, Inc.
Industry
Eligibility
33 Weeks to 1 Year
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Charleston, South Carolina
Conditions
Von Willebrand Disease, Type 1, Heavy Menstrual Bleeding
Interventions
Volta System
Device
Lead sponsor
Five Liters, Inc.
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Dallas, Texas
Recruiting Not applicable Interventional Accepts healthy volunteers

RM1 Project 2 - tAN fMRI

NCT05487664
Conditions
Auricular Stimulation
Interventions
Transcutaneous Auricular Neruostimulation (tAN)
Device
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
96 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Charleston, South Carolina
Completed Not applicable Interventional Results available

Auricular Neurostimulation for Cyclic Vomiting Syndrome

NCT03434652
Conditions
Cyclic Vomiting Syndrome, Abdominal Migraine
Interventions
Percutaneous neurostimulation
Device
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
8 Years to 65 Years
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Conditions
Pain, Postoperative, Opioid Use, Lumbar Spine Injury
Interventions
Sparrow Ascent Transcutaneous Auricular Neurostimulation (tAN), Sham Control Device
Device
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 85 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Dallas, Texas