Clinical trial NCT03054155: Treatment of Hidradenitis Suppurativa With Eth 755nm Alexandrite Laser
Official title: Treatment of Hidradenitis Suppurativa With Eth 755nm Alexandrite Laser
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Hidradenitis Suppurativa
Keywords: hidradenitis suppurativa
hidradenitis
laser
Lead sponsor: Wayne State University
Sponsor class: OTHER
First posted: 2017-02-15
Enrollment: 30
Sex: ALL
Minimum age (years): 18
Maximum age (years): 65
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Intervention model description: For each patient, one side of the body will serve as the treatment side and the other side as the control
Primary purpose: TREATMENT

Brief summary: Patients with bilateral hidradenitis in the axilla, groin and/or inframammary will be treated on one side with the Alexandrite hair removal laser. The other side will serve as the control.

Detailed description: Patients with bilateral disease will be chosen to participate in the study. Patients will be advised to discontinue any prior systemic HS treatments two weeks before their first laser session as a wash out period. One side of the patient will be chosen as the treatment side, the other as an intrinsic control. Each participant will have a total of 4 treatments with the laser, one treatment per month over the duration of 4 months. Patients will then participate in a follow-up clinic visit two months after completion of their last treatment. In between laser sessions, participants will be allowed to use benzoyl peroxide 10% wash as a skin cleanser and clindamycin 1% solution or lotion as a topical therapy, both twice daily to the treatment and control areas. At each visit, photographs will be taken of the lesions to monitor progression and to serve as a comparison to the control side. The treatment side will be treated with the laser and adjusted according to skin type as follows:

Skin type I-II (Fair Caucasian): Fluence: 30J/cm2 Skin type III (Darker Caucasian, light Asian): Fluence: 25 J/cm2 Skin type IV (Mediterranean, Asian, Latin): Fluence: 18 J/cm2 Skin type V (Light skinned black, Darker mediterranean): Fluence: 16J/cm2 Skin type VI (Dark skinned black): Fluence 14 J/cm2

A spot size of 12 mm and a cryogen spray delay of 50/50 will be used for all treated patients. The treatment area will not exceed 15cm x 15cm. If the patient cannot tolerate treatment with the Alexandrite laser, the patient will be terminated from the study. Following each treatment session, the patient will be given an ice pack to reduce any discomfort the patient may experience as a result of treatment with the laser. Clinical evaluation and photographs will determine improvement.

Eligibility criteria: Inclusion Criteria:

* Age 18-65
* Patients with Hidradenitis Suppurativa with bilateral and symmetric disease with one or more anatomic sites of involvement.

Exclusion Criteria:

* Pregnant patients or patients planning to get pregnant during the time of the study
* Patients on systemic treatment for Hidradenitis Suppurativa
* Patients with photosensitivity disorders
* Patients unable to tolerate the laser treatments
* Intake of a photosensitive medication

Primary outcomes:
measure: HS-LASI
timeFrame: Monthly for 4 months, then once 2 months later(6 months total)
Secondary outcomes:
measure: HiSCR
timeFrame: Monthly for 4 months, then once 2 months later(6 months total)
Other outcomes:
Locations:
city: Dearborn
country: United States
facility: Wayne State University Physician Group Dermatology
state: Michigan
Study officials:
References:
citation: Tierney E, Mahmoud BH, Hexsel C, Ozog D, Hamzavi I. Randomized control trial for the treatment of hidradenitis suppurativa with a neodymium-doped yttrium aluminium garnet laser. Dermatol Surg. 2009 Aug;35(8):1188-98. doi: 10.1111/j.1524-4725.2009.01214.x. Epub 2009 May 12.
citation: Mahmoud BH, Tierney E, Hexsel CL, Pui J, Ozog DM, Hamzavi IH. Prospective controlled clinical and histopathologic study of hidradenitis suppurativa treated with the long-pulsed neodymium:yttrium-aluminium-garnet laser. J Am Acad Dermatol. 2010 Apr;62(4):637-45. doi: 10.1016/j.jaad.2009.07.048.
citation: Kimball AB, Sobell JM, Zouboulis CC, Gu Y, Williams DA, Sundaram M, Teixeira HD, Jemec GB. HiSCR (Hidradenitis Suppurativa Clinical Response): a novel clinical endpoint to evaluate therapeutic outcomes in patients with hidradenitis suppurativa from the placebo-controlled portion of a phase 2 adalimumab study. J Eur Acad Dermatol Venereol. 2016 Jun;30(6):989-94. doi: 10.1111/jdv.13216. Epub 2015 Jul 22.