Replexa+ Shortwave Diathermy Device for Patients Diagnosed With Peripheral Artery Disease and Peripheral Neuropathy

Last updated: January 14, 2026
Sponsor: Indiana University
Overall Status: Active - Recruiting

Phase

N/A

Condition

Peripheral Arterial Occlusive Disease

Claudication

Peripheral Neuropathy

Treatment

Replexa shortwave diathermy

Clinical Study ID

NCT07336381
29224
  • Ages > 18
  • All Genders

Study Summary

This research project is designed to see if treatment with the Replexa+ shortwave diathermy device daily for 3 months will improve blood flow in the lower legs and feet of patients diagnosed with peripheral artery disease and peripheral neuropathy.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  1. Diagnosis of peripheral artery disease (PAD).

  2. Participants must exhibit PAD severity, defined by the following manifestation andcorresponding Rutherford classifications: Claudication of the index limb (Rutherford Category 2 or 3- documented as pain withwalking) in conjunction with one or more of the following:

  • ankle brachial index (ABI) greater than or equal to 0.6 mmHg, as measured nomore than 6 months prior to screening

  • resting toe brachial index (TBI) greater than or equal to 0.4, as measured nomore than 6 months prior to screening Note: In cases where ankle and toe systolic pressures are unavailable due tocalcification and/or toe amputation, collection of angiographic data is acceptableto determine locations of blockages or reduced perfusion.

  1. Diagnosis of peripheral neuropathy, as evidenced by review of medical records.

  2. Competent to give consent.

  3. Age 18 years or older.

Exclusion

Exclusion Criteria:

  1. Impaired skin integrity in the location(s) to be treated.

  2. Current wounds or ulcerations.

  3. Diagnosis of active bleeding tendencies, hemorrhage, or thrombosis.

  4. 2+ pitting edema in either lower extremity.

  5. Active infection defined as elevated white blood cell count >11,500/µL or fever >101.5 degrees Fahrenheit or currently taking antibiotic medication(s) for an activeinfection.

  6. Existence of metal hardware in the area(s) to be treated: Any patient with implantedelectronic or metal device such as a pacemaker, bladder stimulator, spinal cordstimulator or electrodes for a myoelectric prosthesis, IUD, surgical staples orimplanted metallic leads.

  7. Pregnant individuals.

  8. Presence of renal disease (creatinine > 2.5 mg/dl and estimated glomerularfiltration rate (eGFR) <30 mL/min) or patients on chronic hemodialysis.

  9. History of skeletal tuberculosis.

  10. Patients, in the investigator's opinion, whose index limb condition is rapidlydeteriorating and may require major amputation within 30 days of screening.

  11. Conditions that impair cognitive function.

  12. Severe concomitant disease(s), or any additional condition(s) which the investigatorfeels constitute(s) criteria for exclusion of a particular subject.

Study Design

Total Participants: 10
Treatment Group(s): 1
Primary Treatment: Replexa shortwave diathermy
Phase:
Study Start date:
December 05, 2025
Estimated Completion Date:
December 31, 2026

Study Description

This is a single-site, non-randomized, open label, exploratory clinical trial to evaluate the effects of the Replexa+ shortwave diathermy treatment in patients diagnosed with peripheral artery disease (PAD) and peripheral neuropathy. This pilot study will examine changes in lower extremity perfusion in a total of ten (10) Veteran patients at the Roudebush VA Medical Center in Indianapolis, Indiana, USA.

The proposed research will study the effects of the Replexa+ device, a Class II, non-invasive device that is cleared to market by the FDA (510k# K162240) and available to prescribing physicians at Veterans Affairs (VA) medical facilities. The Replexa+ device generates a form of electromagnetic energy (shortwave diathermy) to provide therapeutic heat to affected areas, deeper than infrared lights and heating pads. This type of therapeutic heat treatment has been widely used in clinical settings. The Replexa+ system consists of a generating unit (device) connected by a cable to a treatment applicator that is placed against the treated areas over normal clothing. The device operates at 27.12 megahertz (MHz), providing deep heating therapeutic effects to the body tissues.

Patients enrolled in this study will follow the manufacturer's instructions for use of the Replexa+ device and treatment. Treatment will comprise of two 30-minute sessions per day, approximately 8-12 hours apart, for 3 months, at prescribing physician-specified locations of the body.

At the post-treatment visit, the study doctor will assess the success or failure of treatment by comparing baseline measurement testing to post-treatment testing. Treatment failure will be defined as any measurable decrease in limb perfusion as evidenced by lower extremity arterial doppler testing.

Connect with a study center

  • Richard L. Roudebush Veterans Affairs Medical Center

    Indianapolis 4259418, Indiana 4921868 46202
    United States

    Active - Recruiting

Map preview placeholder

Not the study for you?

Let us help you find the best match. Sign up as a volunteer and receive email notifications when clinical trials are posted in the medical category of interest to you.