Active clinical trials for "Keratosis, Actinic"

Evaluating safety and efficacy of the use of topical retinoid with photodynamic therapy for the treatment of actinic keratoses.

This randomized phase II trial is studying how well T4N5 liposomal lotion works in preventing the recurrence of nonmelanoma skin cancer in patients who have undergone a kidney transplant. Chemoprevention therapy is the use of certain drugs to try to prevent the development of or recurrence of cancer. T4N5 liposomal lotion may be effective preventing the recurrence of nonmelanoma skin cancer in patients who have undergone a kidney transplant.

The purpose of this study is to prove the safety and efficacy of Levulan Kerastick (aminolevulinic acid HCl) for Topical Solution 20% followed by 10 J/cm2 of blue light delivered at 10 mW/cm2 or 20 mW/cm2 in the treatment of multiple actinic keratosis on the face or balding scalp (the Treatment Area), utilizing a 14-18 hour incubation period.

Patients on immunosuppressive therapy, e.g. organ recipients, have a higher occurrence of AK than the untreated population. Keratotic lesions (i.e. AK lesions and warts) in this population is highly associated with development of SCC also with 10 times higher mortality rate because of SCC than expected. The risk of developing skin cancer, predominantly SCC and BCC, increases with graft survival time and the length of immunosuppressive treatment period. The higher risk of developing skin malignancy and more aggressive skin malignancies in this population, indicate the need for early removal of these pre-malignant lesions. In this study, two contralateral areas (5x10 cm2) with skin lesions within the patient will be compared. One area will receive Metvix PDT at defined intervals and the other will receive lesion specific treatment at the discretion of the investigator. The primary end-point will be the accumulated number of new lesions during the study and number of AK lesions that show complete response 3 months after baseline. Secondary endpoints will be number of BCC lesions that show complete response, number of recurrent lesions, assessment of cosmetic outcome and safety.

Actinic keratosis (AKs) are premalignant disorders that can evolve into skin cancer. To prevent their development, a study is being conducted with oral isotretinoin and topical tretinoin to verify what drug is the most effective and has the best security profile for these patients. Along with these treatments, cryotherapy with liquid nitrogen and sunscreens will be part of the treatment. The study will have the duration of 10 months. In the first four months, the AKs will be counted and treated with cryotherapy (face and arms) and sunscreens FPS 60 will be used. After it, the patients will return (the AKs will be counted), a new session of cryotherapy will be performed and they will be randomized into two groups: one group using oral isotretinoin 10mg/day ( ISO: 30 patients) and the other one using tretinoin 0,05% cream (AR: 30 patients) applied on face and arms. Skin biopsies will be done for all 60 patients at the beginning of the treatment with retinoids (isotretinoin and tretinoin). After six months of treatment with retinoids, the study will be stopped, AKs will be counted again and skin biopsies will be done. Patients in the group ISO (oral isotretinoin) also have to make blood tests at the beginning, two months and after six months of the treatment. Clinical (AK counting), histological (improvement of parts of the skin) and immunohistochemical parameters will be evaluated to see what drug is more effective for prevention of AKs.

This study will evaluate the safety and effectiveness of Shade for the management of UV-induced skin complications and data collected from this study will be used to support the proposed indications for use.

The primary objective of this study is to compare the efficacy and risk of adverse events of electrocautery versus 532 nm Q-switched neodymium-doped yttrium aluminium garnet (Nd:YAG) laser for the treatment of flat seborrheic keratoses. This study is a pilot study designed to determine feasibility of these procedures.

In this study, daylight PDT will be administered to interested patients at Dana-Farber/Brigham and Women's Cancer Center. Daylight PDT has been shown to be an effective and painless alternative to traditional PDT. Daylight PDT involves application of the photosensitizer in the physician's office followed by exposure to daylight.

Patients of arsenical keratosis may be treated with spirulina. Is this improvement related to the levels of zinc, vitamin E and linoleic acid at the site of the keratosis (palm)? To understand this, patients of palmer arsenical keratosis (n=10), arsenic exposed controls (n=10) and healthy volunteers (n=10) will be treated with spirulina powder 10 g/day orally for 12 weeks. Skin extracts will be collected both before and after supplementation from the palm and dorsum for estimation of zinc, vitamin E and linoleic acid levels.

Skin cancers and pre-cancerous growths (called actinic keratoses, "AKs"), that aren't melanomas, develop in patients with a kidney transplant at excessive rates. When these pre-cancerous AKs, and "non-melanoma" skin cancers occur in kidney transplant patients, they tend to be aggressive, and require frequent medical procedures, often surgery, for the removal of the skin cancers. If not removed adequately the pre-cancers can develop into skin cancers, and the skin cancers, if not removed, may spread, and even cause death. Reducing the occurrence and complications of these skin cancers and pre-cancers in kidney transplant patients with a safe, effective, well-tolerated treatment taken by mouth would be an important medical advance. We are testing oral nicotinamide (NAM)-a B-vitamin compound-for that purpose. Approximately fifty kidney transplant patients who have had at least one non-melanoma skin cancer in the past, will be given randomized to receive NAM, 1 gram twice daily by mouth, or identical pills without NAM, and followed for 1 year to see if NAM treatment reduces the numbers of pre-cancerous AKs, and non-melanoma skin cancers they develop. Patients will be asked to come to the clinic for 3 follow up visits (every 4 months for up to 12 months). They will receive a full body skin exam by a dermatologist, have detailed counting of AKs and biopsies for any suspicious lesions as standard of care. Blood will also be drawn as well as a urine sample obtained at each visit for safety assessment and storage. We will also ask them to answer a series of questions about dietary patterns and intake of whole foods and supplements.