ClinicalTrials.gg
TerminatedNCT04313985Updated Jun 1, 2023Results posted

Electrical Stimulation as an Adjunctive Therapy to Increase Vascular Perfusion in People With PAD or PVD

An interventional study of Tennant Biomodulator-Pro™ Device in PAD - Peripheral Arterial Disease and PVD- Peripheral Vascular Disease, sponsored by Stanford University. Terminated at 1 site in United States. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2023-06-01.

Sponsored by Stanford University · Not applicable, Interventional, and Treatment

Why this study was terminated
PI relocated
Phase
Not applicable
Study type
Interventional
Enrollment
4
Allocation
Non-randomized
Ages
18 Years to 70 Years
Sex
All
01

Study summary

The purpose of this study is to apply Avazzia micro-current stimulation to patients with chronic, non-healing wounds to determine if this therapy is effective in perfusion and bacterial measurements.

Read the detailed description

Investigators hope to learn if micro-current stimulation to a chronic, non-healing wound can be lead to healing. Perfusion studies and bacterial measurements will be assessed before and after treatment on this cross-over study.

Avazzia microcurrent stimulation was applied to patients with chronic, non-healing wounds in Malaysia and was presented at the international wound conference. In 2015 a poster presentation was presented with a 10-patient case series, and in August 2016, a presentation was made by Dr. Nair, keynote speaker about his 100- patient case series showing that the treatment was safe and effective. Dr. Nair followed this study with a 5-patient study looking at perfusion images using SPY- LUNA imaging equipment. The 5-patient study looked at different methods of applying the therapy.

02

Conditions studied

  • PAD - Peripheral Arterial Disease
  • PVD- Peripheral Vascular Disease
03

In context

Peripheral Vascular Diseases

1,025 studies on the registry are indexed under Peripheral Vascular Diseases; 123 are open to participants now.

This study's enrollment of 4 is below the median of 70 across 729 interventional studies indexed under Peripheral Vascular Diseases.

Browse Peripheral Vascular Diseases studies →

Lead sponsor

Stanford University is the lead sponsor of 2,162 studies on the registry; 429 are open to participants now.

Of its 267 completed or terminated interventional studies of FDA-regulated products, 207 (78%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patient has a chronic non-healing wound that has not healed in 30 days in their feet, legs, lower back or buttocks, but not in their hands because the hands will be used to verify equipment operation.
  • Age ≥18 and ≤70 years
  • Wound area is ≥0.5 cm2 and ≤22 cm2
  • Willing and able to comply with weekly visits to clinic (e.g., reliable transportation)

Exclusion criteria

Exclusion Criteria:

  • Presence of an electrical implant such as a cardiac pacemaker or neural stimulator
  • Patient is currently pregnant, possibly pregnant or breast-feeding User of any microcurrent device in the past six (6) months prior to enrollment in the study
  • Patient is experiencing a medical emergency
  • Patient is diagnosed with neuropathy from sources other than diabetes, such as heavy metal, xenobiotic toxicity
  • Patient is diagnosed with Charcot-Marie-Tooth or similar genetically inheritable neuropathic disease(s)
  • Patient is diagnosed with end-stage kidney disease/dialysis or severe kidney insufficiency
  • Patient is diagnosed with malignancies (cancers) undergoing treatment
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Crossover assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
4 participants (actual)

Study arms

  • Active comparator
    Electrical Stimulation First, then Sham Stimulation

    Treat the patient's wound area: Place self-adhesive, conductive electrode pads on either side of the wound on the skin where the pads are not placed in the open wound itself, but rather in the surrounding area with one pad on each side of the wound. Connect the pads to the lead wire to the Avazzia device. Turn on the Avazzia device and change modes to the RSI mode. Increase power to maximum comfortable power level for the patient. If the patient cannot feel the output, then increase power to 250. Instruct the patient to reduce the power level if it begins to feel too strong. (sometimes as the microstimulation is applied, the tissue will become more sensitive to the stimulation. In this case the power should be reduced for patient comfort.) Allow to run unattended for 15 minutes. Take a picture of the pad placement and display on the device to document location, power setting, and treatment mode while the treatment is running for the 15 minutes.

    Device: Tennant Biomodulator-Pro™ Device

  • Sham comparator
    Sham Electrical Stimulation First, then Electrical Stimulation

    Treat the patient's wound area: Place self-adhesive, conductive electrode pads on either side of the wound on the skin where the pads are not placed in the open wound itself, but rather in the surrounding area with one pad on each side of the wound. Connect the pads to the lead wire to the Avazzia device. Turn on the Avazzia device and change modes to the RSI mode. Increase power to maximum comfortable power level for the patient. If the patient cannot feel the output, then increase power to 250. Instruct the patient to reduce the power level if it begins to feel too strong. (sometimes as the microstimulation is applied, the tissue will become more sensitive to the stimulation. In this case the power should be reduced for patient comfort.) Allow to run unattended for 15 minutes. Take a picture of the pad placement and display on the device to document location, power setting, and treatment mode while the treatment is running for the 15 minutes.

    Device: Tennant Biomodulator-Pro™ Device

Interventions

  • DeviceTennant Biomodulator-Pro™ Device

    Tennant Biomodulator-Pro™ conductive electrode pads will be placed on both sides of the wound. The device will either deliver electrical stimulation or no stimulation depending on treatment period.

06

What researchers measure

Primary outcomes

  1. Wound Tissue Perfusion

    To compare wound tissue perfusion following treatment vs placebo (as measured using the HyperMed HyperView device)

    Time frame: Day 7 of the respective treatment period

Secondary outcomes

  1. Percent Change in Wound Area as a Measure of Healing Rate

    To compare rate of wound healing following treatment vs placebo (measured as percentage change in wound area).

    Time frame: Day 7 of the respective treatment period

  2. Bacterial Biopsies

    To compare bacterial burden at the wound site following treatment vs placebo (measured in cells per gram of wound tissue from quantitative deep tissue swab)

    Time frame: From time of randomization up until wound healing or 3 weeks, whichever came first

  3. Pain Score

    To compare patient pain at the wound site following treatment vs placebo, measured on a numerical 0-10 visual scale (0 = no pain, 10 = worst pain imaginable)

    Time frame: Day 7 of the respective treatment period

07

Results

Posted Jun 1, 2023
Limitations and caveats
This study fell far short of it's planned enrollment size and failed to achieve statistical power.

Participant flow

Treatment Period 1 (1 Week)
Participant flow — Treatment Period 1 (1 Week)
MilestoneElectrical Stimulation First, Then Sham StimulationSham Stimulation First, the Electrical Stimulation
Started22
Completed22
Not completed00
Treatment Period 2 (1 Week)
Participant flow — Treatment Period 2 (1 Week)
MilestoneElectrical Stimulation First, Then Sham StimulationSham Stimulation First, the Electrical Stimulation
Started22
Completed22
Not completed00
Follow-up Period (1 Week)
Participant flow — Follow-up Period (1 Week)
MilestoneElectrical Stimulation First, Then Sham StimulationSham Stimulation First, the Electrical Stimulation
Started22
Completed22
Not completed00

Outcome measures

PrimaryWound Tissue Perfusion

To compare wound tissue perfusion following treatment vs placebo (as measured using the HyperMed HyperView device)

Time frame:
Day 7 of the respective treatment period

No measurements were reported for this outcome.

SecondaryPercent Change in Wound Area as a Measure of Healing Rate

To compare rate of wound healing following treatment vs placebo (measured as percentage change in wound area).

Time frame:
Day 7 of the respective treatment period
Reported as:
Median · percentage change
Percent Change in Wound Area as a Measure of Healing Rate
percentage changeElectrical StimulationSham Electrical Stimulation
Percent Change in Wound Area as a Measure of Healing Rate-31 (-71 to 19)-52 (-65 to 38)
SecondaryBacterial Biopsies

To compare bacterial burden at the wound site following treatment vs placebo (measured in cells per gram of wound tissue from quantitative deep tissue swab)

Time frame:
From time of randomization up until wound healing or 3 weeks, whichever came first

No measurements were reported for this outcome.

SecondaryPain Score

To compare patient pain at the wound site following treatment vs placebo, measured on a numerical 0-10 visual scale (0 = no pain, 10 = worst pain imaginable)

Time frame:
Day 7 of the respective treatment period
Reported as:
Median · score on a scale
Pain Score
score on a scaleElectrical StimulationSham Electrical Stimulation
Pain Score0 (0 to 1.75)1 (0 to 1.25)

Adverse events

Collected over 3 weeks. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Electrical Stimulation0/4 (0%)0/4 (0%)0/4 (0%)
Sham Electrical Stimulation0/4 (0%)0/4 (0%)0/4 (0%)

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Electrical Stimulation First, Then Sham StimulationSham Stimulation First, the Electrical StimulationTotal
<=18 years000
Between 18 and 65 years101
>=65 years123
Sex: Female, Male
Sex: Female, Male(Participants)Electrical Stimulation First, Then Sham StimulationSham Stimulation First, the Electrical StimulationTotal
Female000
Male224
Race and Ethnicity Not Collected
Race and Ethnicity Not Collected(Participants)Electrical Stimulation First, Then Sham StimulationSham Stimulation First, the Electrical StimulationTotal
Count of participants——0
Region of Enrollment
Region of Enrollment(Participants)Electrical Stimulation First, Then Sham StimulationSham Stimulation First, the Electrical StimulationTotal
United States224
Pain Score
Pain Score(score on a scale)Electrical Stimulation First, Then Sham StimulationSham Stimulation First, the Electrical StimulationTotal
Mean0 ± 02.5 ± 3.5361.25 ± 2.5
08

Study locations

1 site
  • Stanford Advanced Wound Care Center
    Redwood City, California 94063, United States
09

References and documents

Study documents

  • Protocol and statistical analysis plan · Sep 12, 2018

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 1, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT04313985
Responsible party
Sponsor
First posted
Mar 18, 2020
Start date
Aug 1, 2019
Primary completion
Mar 31, 2022
Completion
Mar 31, 2022
Results posted
Jun 1, 2023
Last update
Jun 1, 2023

Study contacts

Geoffrey C Gurtner, MD
principal investigator · Stanford University School of Medicine- Plastic & Reconstructive Surgery

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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