Jose A Cervantes1, Nathalie C Zeitouni2. 1. Dell Medical School, University of Texas, Department of Internal Medicine, Division of Dermatology, Austin, TX, United States. 2. Medical Dermatology Specialists; University of Arizona College of Medicine, Phoenix, AZ, United States. Electronic address: nathaliezeitouni@email.arizona.edu.
Abstract
BACKGROUND: Data evaluating the effectiveness of photodynamic therapy (PDT) with aminolevulinic acid (ALA) 10% nanoemulsion gel and red-light LED lamp for the treatment of squamous cell carcinoma in situ (SCCis) on the trunk and extremities is limited. Our study sought to investigate the safety and efficacy of utilizing ALA 10% gel with red-light lamp for the treatment of SCCis on the trunk and extremities. METHODS: A single center prospective study of 12 patients with biopsy proven SCCis underwent one or two cycles of red-light PDT with ALA 10 % gel and 3 hours incubation period. Each cycle consisted of two treatments approximately 10 days apart. All participants had a biopsy for histologic evaluation 4 weeks following the last treatment. RESULTS: All patients achieved clinical and histologic clearance following either one or two cycles at the 4-week post treatment follow up period. The majority of lesions were located on the extremities (n=10) with the remainder located on the trunk (n=2). The mean diameter of the lesions was 1.83 cm. Mild pain was noted in patients, with no interruption of treatment. CONCLUSIONS: Our study indicates that ALA 10% gel with a red-light lamp is a safe and effective treatment option for SCCis on the trunk and extremities.
BACKGROUND: Data evaluating the effectiveness of photodynamic therapy (PDT) with aminolevulinic acid (ALA) 10% nanoemulsion gel and red-light LED lamp for the treatment of squamous cell carcinoma in situ (SCCis) on the trunk and extremities is limited. Our study sought to investigate the safety and efficacy of utilizing ALA 10% gel with red-light lamp for the treatment of SCCis on the trunk and extremities. METHODS: A single center prospective study of 12 patients with biopsy proven SCCis underwent one or two cycles of red-light PDT with ALA 10 % gel and 3 hours incubation period. Each cycle consisted of two treatments approximately 10 days apart. All participants had a biopsy for histologic evaluation 4 weeks following the last treatment. RESULTS: All patients achieved clinical and histologic clearance following either one or two cycles at the 4-week post treatment follow up period. The majority of lesions were located on the extremities (n=10) with the remainder located on the trunk (n=2). The mean diameter of the lesions was 1.83 cm. Mild pain was noted in patients, with no interruption of treatment. CONCLUSIONS: Our study indicates that ALA 10% gel with a red-light lamp is a safe and effective treatment option for SCCis on the trunk and extremities.