Feasibility Study on Radiofrequency-Based Selective Electrothermolysis to Investigate Its Effects on Human Skin

  • End date
    Aug 12, 2025
  • participants needed
  • sponsor
    Johns Hopkins University
Updated on 12 July 2022
Accepts healthy volunteers


This research is being done to assess the effect of radiofrequency (RF)-based treatment on skin and skin conditions.


Radiofrequency (RF)-based selective electrothermolysis is an increasingly utilized minimally invasive technology for several dermatologic conditions, such as epilation, acne vulgaris, and skin rejuvenation, with minimal side effects. This procedure targets and destroys selective cutaneous and subcutaneous structures; therefore, allowing greater control and specificity of treatment area and minimizing destruction to surrounding tissue. Here, the investigators propose to utilize this technology on human axillary skin to establish safety and biologic effects of selective electrothermolysis in this particular area of the skin.

The investigators will assess the tolerability, safety, and histometric changes in skin-radiofrequency interactions in the axillary skin of participants. The investigators will collect skin samples from prospective volunteers and assess for biologic effects in human axillary skin after selective electrothermolysis treatment.

During the four months of study period, Participants in the study will receive clinical assessments, photography, questionnaires, up to 3 treatments of RF-based selective electrothermolysis to pre-selected areas of the axillary skin, up to 2 4-mm skin biopsies for up to 5 study visits.

Condition Hidradenitis Suppurativa, Healthy Volunteers
Treatment Radiofrequency-Based treatment
Clinical Study IdentifierNCT05066113
SponsorJohns Hopkins University
Last Modified on12 July 2022


Yes No Not Sure

Inclusion Criteria

For primary objective: healthy volunteers and HS patients between 22 and 70 years of age
Participants must be healthy enough to undergo multiple skin biopsy in the opinion of the investigator
Participants must provide informed consent
Participants must have the ability and willingness to follow all study procedures, attend scheduled visits, and successfully complete the study
Participants must have the ability to understand and communicate with the investigator
For HS patients, participants will have localized disease to the axillae, mild to moderate severity and no evidence of active infection as assessed by the investigator

Exclusion Criteria

Participants unable to provide informed consent
Recently treated for current skin diseases that would affect clinical evaluation
Known contraindications to selective electrothermolysis treatment
Immunocompromised patients
Participants on systemic steroids
Participants on immune modulators
Participants on blood thinners
Participants with bleeding disorders
Participants with any active infections or currently treated infections
Participants with significant medical history or concurrent illness that the investigator feels is not safe for biopsy or study participation
Noncompliant participants
Pregnant or nursing participants (qualitative human chorionic gonadotropin (hCG) testing will be performed prior to each treatment)
Participants with allergy to anesthetics
Participants with a history of keloids or hypertrophic scars within the past 10 years
Participants who have taken oral/topical antihistamines, oral/topical analgesics, and/or other medications that the investigators believe will impact the study
Participants who are currently taking or who have taken in the past 12 months any medications that may impair wound healing, such as systemic retinoids
Participants who cannot undergo motor strength and sensory testing required to assess for adverse events in this study
Clear my responses

How to participate?

Step 1 Connect with a study center
What happens next?
  • You can expect the study team to contact you via email or phone in the next few days.
  • Sign up as volunteer to help accelerate the development of new treatments and to get notified about similar trials.

You are contacting

Investigator Avatar

Primary Contact



Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.

Learn more

If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

Learn more

Complete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.

Learn more

Similar trials to consider


Browse trials for

Not finding what you're looking for?

Every year hundreds of thousands of volunteers step forward to participate in research. Sign up as a volunteer and receive email notifications when clinical trials are posted in the medical category of interest to you.

Sign up as volunteer

user name

Added by • 



Reply by • Private

Lorem ipsum dolor sit amet consectetur, adipisicing elit. Ipsa vel nobis alias. Quae eveniet velit voluptate quo doloribus maxime et dicta in sequi, corporis quod. Ea, dolor eius? Dolore, vel!

  The passcode will expire in None.

No annotations made yet

Add a private note
  • abc Select a piece of text from the left.
  • Add notes visible only to you.
  • Send it to people through a passcode protected link.
Add a private note