AzTrials
AzTrials

Chronic PainNCT05399771

Radiofrequency Hyperthermia Safety Study

A study testing Laser Doppler, Radiofrequency Heating System and Thermal Imaging in people with Chronic Pain and Soft Tissue Injuries, run by Wake Forest University Health Sciences at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

This study will include 20 healthy subjects with intact skin on their lower legs that meet inclusion criteria. Participants will serve as their own control, by heating one leg and not the other. The radiofrequency device consists of a 4 by 6 inch heating pad connected to a temperature controller. Read more about this study

Who is it for?
Ages 18 to 99 yearsHealthy volunteers can take part
Conditions the study is for
Chronic Pain, Soft Tissue Injuries, Wound Heal
What is being tested?
Laser Doppler, Radiofrequency Heating System and Thermal Imaging
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteUnited States
Study dates
27 Jun 2022to 23 Oct 2023
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 99 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • 18 years or older
  • Healthy
  • 20<BMI<40

Who cannot join

  • Pregnant, nursing or child bearing potential
  • Active infections of the skin in the lower leg
  • Open or healing wounds on the lower leg
  • Autoimmune disorder
  • 40<BMI <20
  • History of blood clots
  • History of lower limb edema
  • Tattoos and metal hardware in the leg

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Atrium Health Wake Forest Baptist

    Winston-Salem, North Carolina, 27157

Other trials in United States

About this study

Official title: Radiofrequency Hyperthermia Safety Study (RHySS)

This study will include 20 healthy subjects with intact skin on their lower legs that meet inclusion criteria. Participants will serve as their own control, by heating one leg and not the other. The radiofrequency device consists of a 4 by 6 inch heating pad connected to a temperature controller. Subjects will receive weekly treatments for 4 weeks, and will be re-evaluated 4 weeks after the last treatment to assess any tissue changes that continue after the treatments have concluded.

Read the detailed description

This study will include 20 healthy subjects with intact skin on their lower legs that meet inclusion criteria below. Participants will serve as their own control, by heating one leg and not the other. The radiofrequency device consists of a 4 by 6 inch heating pad connected to a temperature controller. The pad will be applied to the back of the leg and will covered using a compression stocking. The other leg will receive a pad and compression stocking, but radiofrequency will not be applied (no heating).

At the first visit, subjects will be asked to fill out a healthcare questionnaire. With each weekly treatment, subjects will be evaluated to assess how their legs feel on a scale of 1-10, with 1 being no discomfort and 10 being intense pain. Their legs will be photographed before and after radiofrequency MH to examine any visible changes to the tissue. Study team will then use a PeriScan PIM 3 System Laser Doppler scanning for blood perfusion before the Thermofield treatment. The radiofrequency will be set to achieve 40°C/107.6°F) and maintain this temperature consistently during the application time. This temperature is mild and may feel like a drugstore heating pad. The device will be turned on on one leg and will remain off on the other. The time for the heating will be 36 minutes, during which participants will remain in a reclined position, with their legs elevated. The device takes approximately 6 minutes to achieve a tissue temperature of 40°C, and the treatment time with consistent temperature application will be 30 minutes. Study team will then use a PeriScan PIM 3 System Laser Doppler scanning for blood perfusion after the Thermofield treatment ends. Study team will take thermal imaging photographs of the treatment area following each treatment.

Subjects will receive weekly treatments for 4 weeks, and will be re-evaluated 4 weeks after the last treatment to assess any tissue changes that continue after the treatments have concluded. Subjects will be excluded from the study if they develop any kind of intolerance to the MH treatment, like increased pain or unexpected skin changes. If they receive a significant injury or wound that is not due to the study, such that the skin of the lower leg is no longer intact, they will be excluded from the study.

Being tested
Laser Doppler, Radiofrequency Heating System, Thermal Imaging, Healthcare Questionnaire & Measurement
Keywords
mild hyperthermia
Medical subject headings
Chronic Pain, Soft Tissue Injuries

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Laser DopplerDevice

    Also called PeriScan PIM 3 System Laser Doppler

    Study team will use a PeriScan PIM 3 System Laser Doppler to scan for blood perfusion before and after the Thermofield treatment. The PeriScan PIM 3 System is for non-invasive two-dimensional imaging of peripheral tissue.

  • Radiofrequency Heating SystemDevice

    Also called Thermofield

    The radiofrequency will be set to achieve 42°C/107.6°F) and maintain this temperature consistently during the application time. This temperature is mild and may feel like a drugstore heating pad. The device will be turned on on one leg and will remain off on the other. The time for the heating will be 36 minutes, during which participants will remain in a reclined position, with their legs elevated. The device takes approximately 6 minutes to achieve a tissue temperature of 42°C, and the treatment time with consistent temperature application will be 30 minutes.

  • Thermal ImagingDevice

    Study team will take thermal imaging photographs of the treatment area following each treatment.

  • Healthcare Questionnaire & MeasurementOther

    A survey tool created to collect info from participants including:

    1. Name
    2. Age
    3. Weight/ height
    4. Pregnant or nursing?
    5. History of blood clots?
    6. Any wound healing problems?
    7. Any active open wounds on the legs?
    8. Any autoimmune disorders?
    9. Phone number
    10. Email address

    A measurement of the participants calf will be taken as well using a measuring tape.

Study groups in NCT05399771
Study groupRoleWhat they receive
Thermofield temperature controlled radiofrequency deviceExperimentalParticipants will serve as their own control, by heating one leg and not the other. The radiofrequency device consists of a 4 by 6 inch heating pad connected to a temperature controller. The pad will be applied to the back of the leg and will covered using a compression stocking. The other leg will receive a pad and compression stocking, but radiofrequency will not be applied (no heating).
Receives: Device: Laser Doppler; Device: Radiofrequency Heating System; Device: Thermal Imaging; Other: Healthcare Questionnaire & Measurement

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Mean Temperature Change- Skin Evaluation on Leg With Device

    To help determine safety during and after dermal application for generating elevated temperatures

    Measured: week 1

  2. Mean Temperature Change- Skin Evaluation on Leg With Device

    To help determine safety during and after dermal application for generating elevated temperatures

    Measured: week 2

  3. Mean Temperature Change- Skin Evaluation on Leg With Device

    To help determine safety during and after dermal application for generating elevated temperatures

    Measured: week 3

  4. Mean Temperature Change- Skin Evaluation on Leg With Device

    To help determine safety during and after dermal application for generating elevated temperatures

    Measured: week 4

  5. Mean Change in Blood Perfusion Assessment - mL/kg/Min

    Demonstrate that the Thermofield device improves blood flow to the tissue region where it has been applied.

    Laser Doppler scanning will be done on the skin before and after application of the hyperthermia device to quantitatively measure changes in blood perfusion after treatment. Blood perfusion via laser Doppler will also be used to asses increases or decreases in blood perfusion that would indicate harm, such as decreased perfusion - Blood flow is usually given in units mL/(100 g * min)

    Measured: week 1

  6. Blood Perfusion Assessment - mL/kg/Min

    Demonstrate that the Thermofield device improves blood flow to the tissue region where it has been applied.

    Laser Doppler scanning will be done on the skin before and after application of the hyperthermia device to quantitatively measure changes in blood perfusion after treatment. Blood perfusion via laser Doppler will also be used to asses increases or decreases in blood perfusion that would indicate harm, such as decreased perfusion - Blood flow is usually given in units mL/(100 g * min)

    Measured: week 2

  7. Blood Perfusion Assessment - mL/kg/Min

    Demonstrate that the Thermofield device improves blood flow to the tissue region where it has been applied.

    Laser Doppler scanning will be done on the skin before and after application of the hyperthermia device to quantitatively measure changes in blood perfusion after treatment. Blood perfusion via laser Doppler will also be used to asses increases or decreases in blood perfusion that would indicate harm, such as decreased perfusion - Blood flow is usually given in units mL/(100 g * min)

    Measured: week 3

  8. Blood Perfusion Assessment - mL/kg/Min

    Demonstrate that the Thermofield device improves blood flow to the tissue region where it has been applied.

    Laser Doppler scanning will be done on the skin before and after application of the hyperthermia device to quantitatively measure changes in blood perfusion after treatment. Blood perfusion via laser Doppler will also be used to asses increases or decreases in blood perfusion that would indicate harm, such as decreased perfusion - Blood flow is usually given in units mL/(100 g * min)

    Measured: week 4

  9. Blood Perfusion Assessment - mL/kg/Min

    Demonstrate that the Thermofield device improves blood flow to the tissue region where it has been applied.

    Laser Doppler scanning will be done on the skin before and after application of the hyperthermia device to quantitatively measure changes in blood perfusion after treatment. Blood perfusion via laser Doppler will also be used to asses increases or decreases in blood perfusion that would indicate harm, such as decreased perfusion - Blood flow is usually given in units mL/(100 g * min)

    Measured: week 8

  10. Change in Comfort Level Scores of Participants Receiving Hyperthermia Treatment

    A pain score/ 'How are you feeling?' survey will be used at each session before and after hyperthermia treatment. The scale of 0 meaning non pain/ feel fine to 10 being the maximum pain/ not feeling well will be used.

    Measured: week 1

  11. Change in Comfort Level Scores of Participants Receiving Hyperthermia Treatment

    A pain score/ 'How are you feeling?' survey will be used at each session before and after hyperthermia treatment. The scale of 0 meaning non pain/ feel fine to 10 being the maximum pain/ not feeling well will be used.

    Measured: week 2

  12. Change in Comfort Level Scores of Participants Receiving Hyperthermia Treatment

    A pain score/ 'How are you feeling?' survey will be used at each session before and after hyperthermia treatment. The scale of 0 meaning non pain/ feel fine to 10 being the maximum pain/ not feeling well will be used.

    Measured: week 3

  13. Change in Comfort Level Scores of Participants Receiving Hyperthermia Treatment

    A pain score/ 'How are you feeling?' survey will be used at each session before and after hyperthermia treatment. The scale of 0 meaning non pain/ feel fine to 10 being the maximum pain/ not feeling well will be used.

    Measured: week 4

  14. Change in Comfort Level Scores of Participants Receiving Hyperthermia Treatment

    A pain score/ 'How are you feeling?' survey will be used at each session before and after hyperthermia treatment. The scale of 0 meaning non pain/ feel fine to 10 being the maximum pain/ not feeling well will be used.

    Measured: week 8

  15. Safety: Number of Blister Formations

    Cumulative number of blisters formed across all participants during weekly sessions from week 1 to 8 is reported in the data table.

    Measured: From week 1 through week 8

  16. Safety: Significant Changes in Redness

    Number of participants with significant changes in redness that required intervention.

    Measured: from week 1 through week 8

Secondary outcomes (4)
  1. Number of Participants Who Attended the Session

    The number of participants who attend hyperthermia sessions will be documented.

    Measured: week 1

  2. Number of Participants Who Attended the Session

    The number of participants who attend hyperthermia sessions will be documented.

    Measured: week 2

  3. Number of Participants Who Attended the Session

    The number of participants who attend hyperthermia sessions will be documented.

    Measured: week 3

  4. Number of Participants Who Attended the Session

    The number of participants who attend hyperthermia sessions will be documented.

    Measured: week 4

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted1 Jun 2022
  2. Study start27 Jun 2022
  3. Primary completion23 Oct 2023
  4. Study completion23 Oct 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Supportive care
Allocation
Not applicable
Intervention model
Single group
Model description
20 healthy subjects with intact skin on their lower legs that meet inclusion criteria - Participants will serve as their own control, by heating one leg and no the other.
Masking
None (open label)
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05399771
Sponsor's protocol ID
IRB00075221
Status last verified
May 2024
First submitted
18 May 2022
Last updated
3 May 2024
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Laser Doppler, Radiofrequency Heating System and Thermal Imaging in people with Chronic Pain and Soft Tissue Injuries, run by Wake Forest University Health Sciences at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 3 May 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 3 May 2024). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Mean Temperature Change- Skin Evaluation on Leg With Device (time frame: week 1). The study lists 16 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 May 2024; AzTrials last refreshed its copy on 27 Oct 2026.

Free account

Keep searching with a free account

You’ve used your 3 free searches for this session. Log in or create a free AzTrials account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in