Active clinical trials for "Keratosis, Actinic"

The primary objective of this study is to evaluate the safety and effectiveness of 2 concentrations of A-101 compared to Vehicle for the treatment of 4 seborrheic keratosis (SK) Target Lesions on the trunk, extremities and face.

Photodynamic therapy (PDT) uses visible light to treat a premalignant condition, called actinic keratosis, which results on chronically sun exposed skin such as on a balding scalp. A cream is applied containing aminolaevulinic acid or methyl aminolaevulinate and this is converted in the cells to the photodegradable product protoporphyrin IX (PpIX). Visible light causes the degradation of PpIX resulting in the production of reactive oxygen species and then cell death in the actinic keratosis. In conventional PDT a lamp is used to supply the visible light. The main draw back to treatment is pain. Recent studies have shown that daylight can be used as the source of visible light and is as effective as conventional PDT. Patients find this form of treatment less painful and therefore preferable. The reduction in pain seen in daylight PDT appears to be related to the fact that no significant quantity of PpIX accumulates prior to exposure to the light source and small quantities of PpIX are activated continuously during daylight exposure. The drawback of performing daylight PDT in Ireland is the climate, both in terms of cloud cover and temperature. The typical daylight treatment times is 2 hours and it would be difficult for patients to stay outside in winter, spring and autumn. This study investigates the use of an artificial white light source, a Maquet PWD 50SF theatre-light, as an alternative.

The objective of the trial is to compare the short term efficacy of LEO 43204 gel with vehicle gel in AK on face or chest when applied topically once daily for 3 consecutive days as field treatment.

This is a Phase I, single-centre, open label, within-subject comparison trial to explore the biological effects of LEO 43204 Gel, 0.037%, applied once daily for 3 consecutive days in patients with actinic keratosis on the upper extremity. The treatment area for each patient will be as defined as a contiguous area of 250 cm2 of skin on the upper extremity (including the dorsum manus) that contains a minimum of 5 AK lesions. Additionally there must be at least one AK lesion located in a non-treated area on the contralateral arm. All eligible subjects will receive LEO 43204 Gel, 0.037%, on the treatment area on Days 1, 2 and 3. Study medication application will be (sub)investigator applied. A total of 30 patients will be enrolled into this study (n=15 in each of the two groups). Patients will be divided into two groups with different biopsy schedules.

The aim of this study is to investigate how varying incubation periods of topical aminolevulinic acid after pretreatment with microneedle application can facilitate the penetration and efficacy of photodynamic therapy.

This study is to evaluate the efficacy and safety of a generic formulation of fluorouracil 0.5% cream against the brand product (Carac) in participants with actinic keratoses.

This study aims to compare the efficacy and tolerance of a new photodynamic therapy device (PHOS-ISTOS) with the conventional PDT device (Aktilite®) for the treatment of actinic keratosis of the scalp

The objective of this study was to evaluate the safety and therapeutic equivalence of generic ingenol mebutate gel, 0.015% to Picato gel, 0.015% by establishing the therapeutic comparability of the two active products and the superiority of the two active products over the vehicle gel in the treatment of AK on the face and scalp.

The main purpose of this vehicle-controlled study is to determine the efficacy and safety of a solution of Actikerall® (containing 5-fluorouracil 0.5% and salicylic acid 10.0%) in the field-directed treatment of grade I-II actinic keratosis, when it is applied to the affected area once daily for 12 weeks. A secondary objective of this study is to evaluate the efficacy of Actikerall® solution on subclinical actinic keratosis lesions in a subset of patients.

The objective of the trial is to investigate the Safety of LEO 43204 0.018%, 0.037% and 0.1% for actinic keratosis applied once daily for three consecutive days on face/chest, scalp and trunk/extremities, respectively.