View clinical trials related to Photoaged Skin.
Filter by:Chronically photodamaged skin is visually characterized by dryness, wrinkles, brown spots, leathery appearance, etc. This happens as a result of excessive exposure to UV light from the sun. While the sun's exposure leaves the skin's surface visibly changed, the skin's unseen immune system may also be permanently altered as a result of the exposure, making it more likely to develop a variety of skin cancers and infections. This study will examine the lasting changes in the immune system of the skin caused by UV exposure. Investigators will stimulate different aspects of the skin's immune system by giving an injection of Candida Albicans (CANDIN®) and histamine phosphate (HISTATROL®), topical applications of imiquimod 5% cream (ALDARA®) and performing a tape stripping procedure with adhesive tape. The use of Candida Albicans (CANDIN®), histamine phosphate (HISTATROL®), and tape stripping are common procedures in clinical settings to stimulate skin desired skin responses. Imiquimod 5% cream (ALDARA®) is an FDA-approved drug for the treatment of basal cell carcinomas, actinic keratoses and genital warts. Investigators will compare the reaction of the skin's immune system on a cellular level from skin normally exposed to the sun exposure to an area normally hidden from sun exposure.
Topical therapy with retinoids is the only proven medical therapy for aged/photoaged human skin. However, topical therapy with retinoids often result in unwanted cutaneous dermatitis, including erythema and scaling. The reseachers intend to investigate the dose, frequency of use, and time dependence of topical retinol-induced dermatitis. The researchers intend to evaluate retinoid-induced dermatitis biochemically, including retinol regulation of retinoid responsive genes that control retinoid metabolism and serve as markers for retinoid bioactivity. The researchers will also investigate the role of EGF receptor pathway in retinoid-induced dermatitis.
Skin photoaging or skin photodamage were terms used to describe the change in the structure, function and appearance of skin caused by prolonged and repeated exposure to sunlight or other ultraviolet light sources. The visible effects of skin photodamage were fine lines, skin sagging, skin roughness, liver spots and also the appearance of red patches made up of thin red vessels (called telangiectasia). More and more people were presenting to doctors with concerns about skin photodamage and the demand for corrective procedures was increasing. Metvix photodynamic therapy (Metvix PDT) is a procedure currently marketed in several countries in Europe (including the United Kingdom [UK] and Spain) and in Australia, for the treatment of benign forms of skin cancer (example, actinic keratosis). The aim of the study was to assess whether Metvix PDT would be effective in correcting the effects related to photodamage and whether it would be well tolerated.