Active clinical trials for "Keratosis, Actinic"

The primary objectives are to establish the therapeutic equivalence of imiquimod cream 5%, manufactured by Taro Pharmaceuticals Inc. and Aldara (imiquimod) cream, manufactured by 3M, and to show superiority over vehicle in the treatment of AK. The secondary objective is to compare the adverse event (AE) profiles of the two creams.

This Phase 1 study is designed to determine the photoallergic potential of PEP005 Gel, 0.01% and it's vehicle on normal skin.

In this study, 26 patients were selected and included for full-face photodynamic therapy sessions. All patients presented signs of photoaging skin and multiple actinic keratosis. Photographs and Biopsies were taken before and after the procedure. Clinical and histological aspects as well as immunohistochemical aspects regarding neocollagen induction and tumor expression were evaluated.

Clinical Evaluation: Subjects having actinic keratoses and meeting Glogau Photoaging Class III or IV complete the FDA approved 3 day course of Picato® 0.015% gel as approved for the treatment of facial Actinic Keratosis. Each subject undergoes clinical multiple-angle standardized photographs on day 1, day 7, day 30, and day 60. Full face photography will be obtained with the medical research digital camera. Both subjects and investigators complete questionnaires at each visit with individual questions regarding improvement in actinic keratoses and overall skin appearance, wrinkling, dyschromia, erythema, and textural quality of skin. Each characteristic listed above will be graded on a 5 point scale ranging from 0 (lowest quality/worst appearance) to 5 (highest quality/best appearance). In addition, investigators will examine the subject's face and assign a numeric assessment on a 9 point scale ranging from 0 to 8 using previously published verified Griffiths' Photonumeric Photoaging scale. A second and third investigator will be presented at random blinded pretreatment (day 0) and posttreatment (day 60) photographs of each subject and be asked to assign a numerical value from Griffiths' Photonumeric Photoaging Scale. These blinded investgators will be given no information regarding which day each photograph represents. Comparison will be made of skin quality questionnaire scores from each visit and the pre and post treatment Griffiths' Photonumeric Grades. The investigator opted against a split-face study design given the difficulty of blinding with this type of study as well as difficulty recruiting subjects willing to treat for two separate courses. Histologic Evaluation: Standard 3mm dermatology punch biopsies from clinically sun damaged skin will be taken. Biopsy will be taken from either the cosmetically acceptable pre-or infra-auricular area. A digital photograph will be taken and used to identify the pre-treatment biopsy site. Biopsies will be taken of 5 subjects before treatment and at day 60. Day 60 biopsies will be taken immediately adjacent to previously photographed and identified pre-treatment biopsies. Biopsies will be stained with hematoxylin and eosin and histologic features of pre and post treatment skin will be evaluated. Measurement of actinic keratoses, solar elastosis and overall epidermal and dermal thickness pre and post treatment will be compared.

The increasing incidence of actinic keratosis (AK), morbus Bowen (MB) and cutaneous squamous cell carcinoma (cSCC), the patients with often multiple lesions and the disadvantages of invasive diagnostics show the need for an accurate non-invasive diagnostic tool for the determination of invasive growth in AK and MB. Optical coherence tomography (OCT) is a non-invasive scanner creating cross-sectional images of the skin, to a depth of 1-1,5 mm based on light waves. Until now, OCT has been proposed as non-invasive diagnostic tool for basal cell carcinomas. Although the diagnostic value of OCT for detection and sub-typing of basal cell carcinomas has already been demonstrated, it is unclear whether OCT can discriminate between invasive and non-invasive lesions (AK, MB and cSCCs). There are some studies that describe OCT characteristics of AK, MB and cSCCs, however, these characteristics have a lot of overlap (8-13). To date there are no clearly distinctive OCT features to distinguish between AK, MB and cSCCs. This study aims to investigate the value of OCT in discriminating between the presence and absence of invasion in lesions with clinical suspicion for invasion. Two experienced OCT-assessors will evaluate the OCT scans independently. The OCT assessors are blinded to the histological diagnosis of the lesions (invasive or non-invasive), which is used as golden standard. A 5-point Likert scale is used for OCT assessment. Definitely not invasive Probably not invasive Unknown, probably invasive/probably not invasive Probably invasive Definitely invasive In addition to completing the Likert-scale, assessors are asked to describe the presence/absence of predefined OCT characteristics (a.o. hyperkeratosis and the presence of the dermo-epidermal junction) In case of disagreement between the independent assessors, the OCT scan will be re-assessed in a consensus meeting.

The study is a basic science research study that is designed to characterize and compare the immune response in individuals who are designated as ABO blood group secretors, meaning they have a functional copy of the FUT2 gene versus those patients who are designated ABO non-secretors after application of topical imiquimod to these patients.

The purpose of the study is to compare the risk of developing squamous skin cancer (SCC) or other types of cancer after treatment of AKs with ingenol mebutate gel or imiquimod cream. Subjects will be randomised to treatment with ingenol mebutate or imiquimod and will receive a second treatment cycle with the same treatment if the first treatment does not clear all AKs. Subjects will be followed over a period of three year (36 months) after first treatment

A topical treatment applied twice daily for 4 weeks to induce disappearance of facial actinic keratosis (AK). First 4 weeks treatment (visit 1, 2 and 3 at 0,2 an 4 weeks) treated as a double blind parallel study. From weeks 4 to 7 (visit 3 to visit 4) all patients to be treated by the active component.

This is a phase 4, multi-centre, randomized, two group, open label, active controlled, parallel group, 17 week trial.

This Phase 1 study is designed to determine the photoirritation potential of PEP005 Gel, 0.01% when application is followed by light exposure.