Using a non-invasive method to stimulate the vagus nerve for treating dry eye disease

Transcutaneous Auricular Vagus Nerve Stimulation in Dry Eye Disease: A Randomized Clinical Trial

Phase 2 Interventional Beijing Tongren Hospital · NCT04673643

This study is testing a new non-invasive method to stimulate the vagus nerve to see if it can help people with dry eye disease feel better.

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment128 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorBeijing Tongren Hospital Academic / other
Locations2 sites (Beijing and 1 other locations)
Trial IDNCT04673643 on ClinicalTrials.gov

What this trial studies

This study evaluates the effectiveness of transcutaneous auricular vagus nerve stimulation (taVNS) in patients suffering from dry eye disease associated with meibomian gland dysfunction. A total of 256 participants will be enrolled at Beijing Tongren Hospital, where they will complete various questionnaires and assessments at baseline and follow-up intervals of 1, 3, and 6 months. The study aims to measure therapeutic effects using scores related to dry eye symptoms and psychological status, with statistical significance defined as a p-value of less than 0.05.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 18 to 75 with a clinical diagnosis of dry eye disease.

Not a fit: Patients with a history of depression, tumors, thyroid disease, diabetes, cardiac diseases, or those who have undergone ophthalmology surgery may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could provide a novel, non-invasive treatment option for patients with dry eye disease.

How similar studies have performed: While the use of vagus nerve stimulation is gaining interest, this specific application for dry eye disease is relatively novel and has not been extensively tested in prior studies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Age \>=18 and Age \<=75.
2. Clinical diagnosis of dry eye disease.

Exclusion Criteria:

1. History of depression, tumors, thyroid disease, diabetes, cardiac diseases.
2. History of phthalmology surgery.
3. Pregnant or lactating women.

Where this trial is running

Beijing and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Dry Eye DiseasetaVNSDry eyeRCT
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.