NCT06105541

Brief Summary

Investigate whether at-home transcutaneous auricular VNS (tAN: transcutaneous auricular neurostimulation) improves a battery of nine key physical and psychological symptoms of a group of hEDS (Hypermobile Ehlers-Danlos Syndrome \& Hypermobile Spectrum Disorder) patients (n=30) using a randomized, double blind, sham controlled design. The study team will collect clinical measures at baseline, after a two-week double-blind intervention phase, after a following two-week open-label phase and finally at three months post intervention. The study team will test patients in the following domains: pain, fatigue, sleep, anxiety, depression, quality of life, GI function, immune function and autonomic function.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
25

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jul 2023

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 5, 2023

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

August 9, 2023

Completed
3 months until next milestone

First Posted

Study publicly available on registry

October 27, 2023

Completed
2.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 4, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 4, 2026

Completed
Last Updated

February 27, 2026

Status Verified

October 1, 2025

Enrollment Period

2.6 years

First QC Date

August 9, 2023

Last Update Submit

February 24, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Ehlers-Danlos Syndrome Symptom Battery

    The investigators have created an Ehlers-Danlos Syndrome Symptom Battery that measures a variety of different primary and secondary symptoms associated with Ehlers-Danlos Syndrome, including: Pain, Fatigue, Sleep, Anxiety, Depression, Quality of Life, and Gastrointestinal issues

    16 weeks

Study Arms (2)

2 Weeks Sham tAN followed by 2 Weeks Active tAN

EXPERIMENTAL

Participants will be randomized to receive 2 weeks of at-home, self-administered sham Transcutaneous Auricular Neurostimulation (tAN), followed by 2 weeks of at-home, self-administered active Transcutaneous Auricular Neurostimulation (tAN).

Device: Transcutaneous Auricular Neurostimulation

Four Weeks of Active Transcutaneous Auricular Neurostimulation

EXPERIMENTAL

Participants will be randomized to receive 2 weeks of at-home, self-administered active Transcutaneous Auricular Neurostimulation (tAN), followed by 2 additional weeks of at-home, self-administered active Transcutaneous Auricular Neurostimulation (tAN)

Device: Transcutaneous Auricular Neurostimulation

Interventions

Transcutaneous Auricular Neurostimulation (tAN) is a wearable, electrical stimulation device that delivers electricity to specific parts of the human ear.

2 Weeks Sham tAN followed by 2 Weeks Active tANFour Weeks of Active Transcutaneous Auricular Neurostimulation

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Participants who meet the 2017 diagnostic criteria for hEDS or HSD4-5 with persistent symptoms in at least two of the domains to be followed during the intervention (pain, fatigue, sleep, anxiety, depression, quality of life, GI function, autonomic function and immune function)
  • Mentally capable of reading, writing, giving consent, and following instructions

You may not qualify if:

  • MRI-contraindicated implanted medical devices;
  • pregnant
  • history of seizures
  • prior history of trauma or damage to ear

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Medical University of South Carolina

Charleston, South Carolina, 29425, United States

Location

MeSH Terms

Conditions

Ehlers-Danlos syndrome type 3Ehlers-Danlos Syndrome

Condition Hierarchy (Ancestors)

Hemostatic DisordersVascular DiseasesCardiovascular DiseasesHemorrhagic DisordersHematologic DiseasesHemic and Lymphatic DiseasesSkin AbnormalitiesCongenital AbnormalitiesCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesSkin Diseases, GeneticGenetic Diseases, InbornCollagen DiseasesConnective Tissue DiseasesSkin and Connective Tissue DiseasesSkin Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Participants will be randomized to one of two paralell groups: Group 1: Double-blind phase Active, Open-label phase Active Group 2: Double-blind phase Sham, Open-label phase Active
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor-Faculty

Study Record Dates

First Submitted

August 9, 2023

First Posted

October 27, 2023

Study Start

July 5, 2023

Primary Completion

February 4, 2026

Study Completion

February 4, 2026

Last Updated

February 27, 2026

Record last verified: 2025-10

Locations