Fractional CO2 Laser Fenestration and Steroid Delivery in HS Lesions

October 6, 2022 updated by: Timothy Gillenwater, University of Southern California

Open Label Prospective Trial of Fractional Ablative CO 2 Resurfacing With Laser- Facilitated Steroid Delivery in Patients With Mild to Moderate Hidradenitis Suppurativa.

Assess the efficacy of fractional ablative CO2 therapy combined with topical steroids in HS patients with Hurley stage I or stage II disease.

Hidradenitis suppurativa (HS) is a chronic, oftentimes debilitating inflammatory skin condition that presents with painful lesions in intertriginous areas of the body. The reported prevalence of HS in the U.S. is around 1-4%. Medical therapies, which typically consist of topical or systemic antibiotics, hormone- regulating drugs, and immunomodulators, are initially used to control the disease but HS can be recalcitrant to these modalities in the long-term. Optimizing management of mild-moderate HS is crucial to prevent disease progression and improve patients' quality of life.

Study Overview

Detailed Description

This is an open label prospective study aimed at understanding the efficacy of fractional ablative CO 2 laser therapy combined with steroids in HS patients with mild-moderate (Hurley stage I or stage II) disease. Study subjects will be patients with mild-moderate HS. The subjects will undergo a minimum of 3 treatment sessions and up to 5 treatment sessions at 4-6 week intervals. Patients will be informed of the aim of the study and the risks and benefits of the intervention. All questions that the subjects have will be answered and patients will be informed that their participation is completely voluntary. Subjects who agree and consent to participate in the study will partake in the treatment sessions. EMLA™ 5% cream will be applied as a topical anesthetic to the affected area 30 minutes prior to treatment. Fractional ablative CO 2 laser therapy will be performed and the HS lesions that will be treated include: non-inflammatory and inflammatory nodules, sinus tracts, abscesses, and scars. The fractional CO 2 laser treatment will be followed by immediate application of triamcinolone acetonide 40 mg/ml to the treatment area. Patients will be evaluated before the 1st treatment session and before every subsequent treatment session. The last study visit will occur 1 month after the completion of the last treatment session. Before each laser treatment, physicians will perform a complete assessment of Hurley stage and HS-PGA score. The number of non-inflammatory nodules, inflammatory nodules, abscesses, and sinus tracts in the treated area will be counted. Patients will evaluate their pain and itch level and provide their impression on whether their HS has improved, worsened, or stayed the same. Patients will also complete the Patient Global Assessment Item questionnaire. For scars, objective scar assessment will be performed using the Fibrometer ® , Elastimeter ® , and SkinColorCatch ® measurement tools. The Fibrometer ® measures tissue induration and skin stiffness. The Elastimeter ® induces constant skin deformation and returns a measurement of skin elasticity. The SkinColorCatch ® is a colorimeter that allows skin tone to be measured. Measurements of scars will be taken before each treatment session. In addition, the scars will be assessed using the VSS and POSAS scales by the investigators. Patients will also complete a POSAS self- assessment at each treatment session. Pictures of the treatment area will be taken during each visit with permission from the patients to analyze the effects of the treatment.

Study Type

Interventional

Enrollment (Anticipated)

10

Phase

  • Early Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • 18 years of age or older with a diagnosis of HS for at least 6 months
  • Subjects who provide informed consent to undergo the procedure
  • Patients with mild to moderate HS (Hurley stage I or stage II)
  • Must not have been using topical or systemic therapies for 2 weeks prior to starting treatment on the affected area
  • The use of antiseptic washes and intralesional steroid injections for acute lesions (rescue therapy) will be allowed

Exclusion Criteria:

  • Under the age of 18
  • Pregnant women
  • Severe HS (Hurley stage III)
  • Using topical or systemic medications within the 2 weeks prior to starting therapy
  • History of adverse reactions to laser resurfacing or steroids
  • Other diseases besides HS which require ongoing systemic therapies
  • Active infection within the treatment area

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Endpoint Measure of non-inflammatory nodules
Time Frame: After each treatment session (4-6 weeks)
Change from baseline in number of non-inflammatory nodules
After each treatment session (4-6 weeks)
Endpoint measure of Fibrometer measurements
Time Frame: Before and after each treatment session (4-6 weeks)
Change in Fibrometer® measurements
Before and after each treatment session (4-6 weeks)
Endpoint Measure of Elastimeter
Time Frame: Before and after each treatment session (4-6 weeks)
Change in Elastimeter®
Before and after each treatment session (4-6 weeks)
Endpoint measure of self-reported improvement in HS
Time Frame: After each treatment session (4-6 weeks)
Proportion of patients who self-report improvement in HS
After each treatment session (4-6 weeks)
Endpoint measure of inflammatory nodules
Time Frame: After each treatment session (4-6 weeks)
Change from baseline in number of inflammatory nodules
After each treatment session (4-6 weeks)
Endpoint measure in SkinColorCatch
Time Frame: Before and after each treatment session (4-6 weeks)
Change in SkinColorCatch® measurements
Before and after each treatment session (4-6 weeks)
Endpoint measure of sinus tracts
Time Frame: After each treatment session (4-6 weeks)
Change from baseline in number of sinus tracts
After each treatment session (4-6 weeks)
Endpoint measure of abscesses
Time Frame: After each treatment session (4-6 weeks)
Change from baseline in number of abscesses
After each treatment session (4-6 weeks)
Endpoint measure of pain/itch level
Time Frame: After each treatment session (4-6 weeks)
Change from baseline in pain/itch levels Scaled (1-10)
After each treatment session (4-6 weeks)
Endpoint measure in investigator assessed VSS score
Time Frame: Before and after each treatment session (4-6 weeks)

Change in investigator assessed VSS

Vancouver scar scale :

Vascularity : normal, pink, red, purple (0-3) Pigmentation : normal, hypopigmentation, hyperpigmentation (0-2) Pliability : normal, supple, yielding, firm, banding, contracture (0-5) Height: normal (flat), 0-2mm, 2-5mm, >5mm (0-3)

Before and after each treatment session (4-6 weeks)
Endpoint Measure in investigator assessed POSAS score
Time Frame: Before and after each treatment session (4-6 weeks)
Change in investigator assessed POSAS scores Vascularity (0-10) Pigmentation (0-10) Thickness (0-10) Relief (0-10) Pliability (0-10) Surface area (0-10) Overall opinion (0-10)
Before and after each treatment session (4-6 weeks)
Endpoint measure of HS-PGA scores
Time Frame: After each treatment session (4-6 weeks)
Change from baseline in HS-PGA scores Scaled (0-5)
After each treatment session (4-6 weeks)
Endpoint measure in patient assessed POSAS score
Time Frame: Before and after each treatment session (4-6 weeks)
Change in patient assessed POSAS score
Before and after each treatment session (4-6 weeks)
Endpoint measure of changes in patient global assessment questionnaire scores
Time Frame: After each treatment session (4-6 weeks)
Change from baseline in Patient Global Assessment questionnaire scores
After each treatment session (4-6 weeks)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Anticipated)

November 1, 2022

Primary Completion (Anticipated)

January 20, 2023

Study Completion (Anticipated)

March 1, 2023

Study Registration Dates

First Submitted

September 30, 2022

First Submitted That Met QC Criteria

October 6, 2022

First Posted (Actual)

October 14, 2022

Study Record Updates

Last Update Posted (Actual)

October 14, 2022

Last Update Submitted That Met QC Criteria

October 6, 2022

Last Verified

October 1, 2022

More Information

Terms related to this study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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