Improving heart function in cancer patients using vagus nerve stimulation

Neuromodulation of Cardiovascular Risks Associated With Cardiotoxic Chemotherapy: A First in Human Randomized Pilot Study. Neuromodulation in Cancer Study (OU-SCC-NCAN)

EARLY_PHASE1 · University of Oklahoma · NCT05921253

This study is testing whether a small device that stimulates the vagus nerve can help improve heart function in cancer patients who have recently received chemotherapy.

Quick facts

PhaseEARLY_PHASE1
Study typeInterventional
Enrollment104 (estimated)
Ages18 Years to 99 Years
SexAll
SponsorUniversity of Oklahoma (other)
Drugs / interventionsradiation
Locations2 sites (Oklahoma City, Oklahoma and 1 other locations)
Trial IDNCT05921253 on ClinicalTrials.gov

What this trial studies

This study investigates the effects of low-level vagus nerve stimulation on heart function and inflammation markers in patients who have recently undergone anthracycline-based chemotherapy for breast cancer or lymphoma. Participants will use a handheld device to deliver stimulation to one ear for one hour daily over a 14-day period. The goal is to assess improvements in heart rate variability and chemical markers in the blood, which may indicate better heart health. This approach aims to mitigate cardiovascular risks associated with certain cancer treatments.

Who should consider this trial

Good fit: Ideal candidates are patients over 50 years old who have received anthracycline-based therapy for breast cancer or lymphoma within the last 15-30 days and have additional cardiovascular risk factors.

Not a fit: Patients with atrial paced rhythm, history of seizures, or end-stage liver or kidney disease may not benefit from this study.

Why it matters

Potential benefit: If successful, this could lead to improved heart health and reduced cardiovascular risks for cancer patients undergoing specific chemotherapy treatments.

How similar studies have performed: While the approach of vagus nerve stimulation is gaining interest, this specific application in the context of cardiotoxic chemotherapy is relatively novel and has not been extensively tested in prior studies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients (\>18 years) who have received anthracycline-based therapy for breast cancer or lymphoma within the last 30 days
* A least 1 of following additional criteria:

  * previous chest radiation

    . Age\>50
  * type 2 diabetes mellitus
  * hypertension
  * current smoking
  * obesity (BMI ≥ 30)
  * previous myocardial infarction
  * established atherosclerotic heart disease or significant valve disease. chronic kidney disease

Exclusion Criteria:

* Atrial paced rhythm
* History of seizure currently on treatment
* History of vasovagal syncope
* End stage liver or kidney disease

Where this trial is running

Oklahoma City, Oklahoma 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.

View on ClinicalTrials.gov →

Conditions: Breast Cancer, Lymphoma, Stimulation Device, Vagus Nerve Stimulator

Last reviewed 2026-05-15 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.