Nd:YAG vs Alexandrite Laser Treatment in Hidradenitis Suppurativa
Comparative Efficacy of Nd:YAG and Alexandrite Laser Treatments in Hidradenitis Suppurativa: A Split-Person, Non-Inferiority Study
1 other identifier
interventional
21
0 countries
N/A
Brief Summary
The purpose of this study is to evaluate whether Alexandrite laser treatment is non-inferior to Nd:YAG (neodymium-doped yttrium aluminum garnet) laser treatment of hidradenitis suppurativa (HS).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Jul 2026
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
April 28, 2025
CompletedFirst Posted
Study publicly available on registry
May 7, 2025
CompletedStudy Start
First participant enrolled
July 1, 2026
ExpectedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2027
Study Completion
Last participant's last visit for all outcomes
July 1, 2027
April 28, 2026
April 1, 2026
1 year
April 28, 2025
April 24, 2026
Conditions
Outcome Measures
Primary Outcomes (2)
HiSCR50
Percentage of patients achieving a 50% reduction in their hidradenitis suppurativa clinical response (HiSCR) score.
6 months
HiSQOL
The Hidradenitis Suppurativa Quality Of Life (HiSQOL) scale, a validated HS quality of life index and is comprised of a 17-item HS-specific HRQOL instrument with a 7-day recall period. Score ranges from 0 to 68, with higher scores indicating more severe impact
6 months
Secondary Outcomes (4)
Pain VAS score
6 months
Pruritus numeric rating scale
6 months
Days free of disease in last 30 days
6 months
AN Count
6 months
Study Arms (1)
Receiving treatment with both laser types
EXPERIMENTALParticipants will receive split-body treatment, receiving Nd:YAG laser treatment to an affected anatomical site (axilla, inframammary region, or groin) and Alexandrite laser to the contralateral side. The treatment side will be randomized and maintained through the study.
Interventions
Nd:YAG laser applied to one side of the participant's body (e.g. left or right) according to randomization, every 4-6 weeks for 4 consecutive treatments.
Alexandrite laser applied to the contralateral side of the participant's body (e.g. left or right) according to randomization, every 4-6 weeks for 4 consecutive treatments.
Eligibility Criteria
You may qualify if:
- Geisinger male or female patients with a diagnosis of hidradenitis suppurativa (all stages of disease)
- years of age
- Not on concurrent systemic therapy (e.g., antibiotics, biologic therapies)
- Must have not used systemic therapies within 2 weeks of enrollment in study
- Able and willing to provide consent
You may not qualify if:
- Patients who cannot tolerate laser therapy
- Patients who cannot wear protective eyewear
- Patients who are pregnant
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Geisinger Cliniclead
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Mikael K Horissian, MD
Geisinger Clinic
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Assistant Professor of Dermatology
Study Record Dates
First Submitted
April 28, 2025
First Posted
May 7, 2025
Study Start (Estimated)
July 1, 2026
Primary Completion (Estimated)
July 1, 2027
Study Completion (Estimated)
July 1, 2027
Last Updated
April 28, 2026
Record last verified: 2026-04
Data Sharing
- IPD Sharing
- Will not share