View clinical trials related to Actinic Keratosis.
Filter by:Actinic keratoses (AKs) are some of the most common lesions seen by dermatologists. Flesh colored to erythematous, these lesions often present with scaling or crusting in sun damaged regions of the body. While they are physically visible and often palpable, these changes can also result in psychosocial changes in patients, including embarrassment about their skin or reduction in leisure activities to avoid further sun exposure. At the same time, AKs are known to progress in a significant number of cases to squamous cell carcinoma (SCC), a concern in terms of its metastatic potential. The primary purpose of developing this questionnaire is to examine how well it can potentially identify patients with actinic keratoses. However, since AK is associated with significant detriment to quality of life for validity/reliability assessment, the investigators propose to give a compilation of four self-assessment questionnaires (not specific to AK but validated for skin health in general) to subjects with at least one actinic keratosis and age- and sex- matched participants without AKs, defined as the control population. These will include the SKINDEX-16, the DLQI and the Skin Health Calculator, as well as a questionnaire composed of items specific to predisposition to AKs to be able to better assess the discriminatory power of the questionnaire.
The purpose of this study is to determine the potential effect of topically applied 3.75% imiquimod cream on atrial ectopy in actinic keratosis (AK) patients. The primary endpoint is the change in the 24-hour supraventricular premature beat count. The secondary endpoint is the change in 24-hour supraventricular premature couplet and run counts and atrial fibrillation (% time); change in 24-hour mean heart rate; change in 24-hour ventricular premature beat count, ventricular premature couplet and run counts.
It is well known the efficacy of 5% 5-fluoruracil for multiple and superficial actinic keratosis (AKs)treatment. Recently its additional benefit for advanced and severe photoaging while treating Aks was reported. The aim of this study is to compare the efficacy and safety of the two modalities of 5% 5-FU use for forearms photoaging.
This trial will be conducted to explore the biological effects in the skin following treatment with PEP005 Gel, 0.05% administered for two consecutive days, assessed by histology.
The aim of this study is to evaluate the efficacy and safety of LAS 41005 compared to cryotherapy in subjects with moderate to severe hyperkeratotic actinic keratosis (punch biopsies).
The purpose of this phase 1 trial is to investigate the local tolerability on the finger following exposure to PEP005 Gel 0.015% or 0.05% and hand washing once daily, for 2 or 3 consecutive days.
The aim of this study is to determine the efficacy, safety and tolerability of LAS41007 compared to a marketed reference product as well as to vehicle (topical application, twice daily, indication mild to moderate AK).
Nodular Basal Cell Carcinomas: Compare the efficacy and safety of conventional versus fractional laser assisted PDT for difficult to treat nodular cell carcinomas in the face. Actinic keratosis: Compare the efficacy and safety of conventional versus fractional laser assisted PDT for moderate to severe actinic keratoses located in the face and on the hands.
Actinic keratoses (AK) are common cutaneous lesions associate with chronic ultraviolet radiation exposure. While most authorities consider AK as a pre-malignant lesion, some consider it as an incipient squamous cell carcinoma (SCC). In addition, the skin around clinically obvious AK lesions has been subject to the same chronic ultraviolet exposure, resulting in genetic damage and mutations, resulting in "field cancerization." Subclinical AKs may progress to clinical AKs, or even de novo invasive SCCs. Among the current therapies for the treatment of AK are excisional surgery, cryosurgery, electrodessication and curettage, topical chemotherapy and light therapies. With cryotherapy, treated lesion clearance rates at 3 months post-treatment after double-freeze thaw cryotherapy has been reported to be around 76-88%; Overall lesion clearance rate at approximately 5 months post-cryosurgery has been reported to be 35-51%. Imiquimod is a topical immune response modifier and a 5% formulation has been approved for the treatment of AKs in the US as a 2x/week for 16 week regimen and in Europe as a 3x/week for 4 week regimen for 1 or 2 courses of therapy. Topical imiquimod treatment may also reduce subclinical lesions in the treatment area, resulting in fewer "new" AK lesions developing over the same period of time when compared to focal treatment. In a comparison of cryosurgery versus imiquimod for the treatment of AKs, Krawtchenko et al reported initial complete clearance rates of 68 and 85% by clinical assessment, respectively. However, the treatment field sustained clearance rate was 4% versus 73%, respectively. Tan et al reported that while application of imiquimod or vehicle following cryosurgery resulted in comparable target AK clearance rates at 12 weeks of 79% versus 76%, respectively, the imiquimod group had fewer total AKs and fewer subclinical AKs. Imiquimod cream at a concentration of 3.75% has been found in Phase 3 studies to be superior to placebo cream with respect to clearance of AKs using a regimen of up to 2 packets (250 mg of cream per packet, 500 mg total) applied daily to the entire face (approximately 200 cm2) for two 2-week treatment cycles separated by a 2-week no-treatment period. This study aims to examine the benefit of cryotherapy in combination with imiquimod 3.75% compared to cryotherapy alone.
The purpose of this study is to explore the effect of treating actinic keratoses of the face with imiquimod 3.75% cream followed by photodynamic therapy in comparison to treatment with imiquimod alone