Response of vulval lichen sclerosus and squamous hyperplasia to photodynamic treatment using sustained topical delivery of aminolevulinic acid from a novel bioadhesive patch system
- 1 April 2009
- journal article
- clinical trial
- Published by Wiley in Photodermatology, Photoimmunology & Photomedicine
- Vol. 25 (2), 111-113
- https://doi.org/10.1111/j.1600-0781.2009.00410.x
Abstract
This study evaluated the clinical and histopathological responses of vulval lichen sclerosus (LS) and squamous hyperplasia (SH) to photodynamic therapy (PDT). A novel bioadhesive patch containing aminolevulinic acid (ALA) at a dose of (38 mg/cm(2)) was used to treat 10 patients before irradiation with light of 630 nm. Clinical, histopathological and pathological responses to treatment were assessed at 6 weeks post-treatment. After 17 cycles of PDT, six patients reported significant symptomatic relief and no cutaneous photosensitivity. Histopathological differences were not demonstrated, but statistically significant induction of apoptosis was seen. It can be concluded that ALA-PDT patch-based formulation is pragmatic and primarily offers symptomatic management of vulval LS and SH.Keywords
This publication has 3 references indexed in Scilit:
- Evaluation of a water-soluble bioadhesive patch for photodynamic therapy of vulval lesionsInternational Journal of Pharmaceutics, 2005
- Management of anogenital lichen sclerosusClinical and Experimental Dermatology, 2001
- Photodynamic therapy in women with cervical intraepithelial neoplasia using topically applied 5-aminolevulinic acidInternational Journal of Cancer, 1999