Home › Hidradenitis Suppurativa › NCT07414550

Radiotherapy for Refractory Hidradenitis Suppurativa

Radiotherapy for Treatment of Recalcitrant Hidradenitis Suppurativa (RADIANT-SUPPoRT)

Who can join

Ages 18 and older · All sexes

Inclusion Criteria:

* Male or female subjects between the age of 18 or older with moderate or severe HS (Hurley Stage II or III) with bilateral axillary disease of approximately equivalent disease severity will be included.
* Patients on topical and/or systemic HS medications for at least 1 month will continue maintenance treatment throughout the study period as per standard of care.
* Patients willing and able to provide informed consent

Exclusion Criteria:

* Pregnancy - Women of childbearing potential must use trial approved birth control and obtain a negative pregnancy test 7 days prior to radiotherapy CT simulation.
* Severe autoimmune conditions including lupus, scleroderma and mixed connective tissue disease
* Poorly controlled diabetes per physician discretion, HIV, Hepatitis B/C.
* Prior therapeutic radiotherapy.
* Active malignancy.
* Contraindication to radiotherapy as determined by treating radiation oncologist.
* Patients who began new systemic treatment for their HS \<1 month prior to enrollment in trial
* History of photosensitivity disorders or prior radiation sensitization syndromes
* Any contraindication to radiotherapy as determined by the treating radiation oncologist.

About the study

The goal of this clinical trial is to learn if high-dose radiotherapy can provide sustained disease relief in moderate to severe, treatment resistant Hidradenitis suppurativa patients; could include any of the following: any sex/gender, and those greater then 18 years old. The main question\[s\] it aims to answer are:

Outcome measure 1: Will radiotherapy change the number of inflammatory nodules, abscesses, and draining sinus tracts in the treated axilla compared with the untreated axilla? Outcome measure 2: Will radiotherapy positively change a patient's quality of life, pain levels and symptom burden?

Participants will receive radiotherapy to one axilla affected by hidradenitis suppurativa. The contralateral axilla will not receive radiotherapy and will continue receiving the standard treatment regimen.

Participants will...

* Attend a baseline dermatology skin evaluation, complete multiple surveys and an optional participation in a biopsy * Attend multiple radiation sessions over 5 weeks * Attend 2 follow up visits with dermatology for skin evaluation, complete follow up surveys, and an optional biopsy.

What is being tested

• Radiated axilla (radiation)

Sponsor: Thomas Jefferson University · Participants: 10 · Started: May 1, 2026

Contact the study team

• Gregory Alexander, MD · Phone: 856-922-4800
• Sherry Yang, MD · Phone: 215-955-6680

Official record on ClinicalTrials.gov — NCT07414550

Locations in the U.S.

Conditions

• Hidradenitis Suppurativa

From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.