Active clinical trials for "Keratosis, Actinic"

The aim of this study is to investigate how the efficacy and tolerability of PD P 506 A-PDT relate to the commonly used cryosurgery in the treatment of mild to moderate AK lesions located on the head. To be able to quantify the effect the patient will be allocated to one of three treatments: PD P 506 A-PDT, cryosurgery or placebo-PDT.

Treatment of actinic keratosis with imiquimod cream is expected to cause changes in the genes that are turned on, and turned off, by skin cells. Some of the drug induced changes in skin cells should also be visible using a special microscope. This study examines both types of changes.

This is a Phase 2 clinical study in patients with actinic keratosis involving daily application of 1 of 2 strengths of VDA-1102 topical ointment for approximately 12 weeks (84 days). This study has no placebo and the subjects enrolled in the study will know exactly what they are receiving. The objectives of the study are to evaluate the safety and benefit of these two strengths.

This Phase I study is designed to evaluate the systemic exposure and safety of KX2-391 Ointment in adult subjects when applied to an area of skin containing at least 5 clinically typical, visible, and discrete Actinic Keratosis lesions on the face or balding scalp.

This Phase III study is designed to evaluate the efficacy and safety of KX2-391 Ointment in adult participants when applied to an area of skin containing 4-8 stable, clinically typical Actinic Keratosis (AK) lesions on the face or scalp.

This is a two-stage feasibility study to determine if focussed microwave energy is a suitable treatment for Actinic Keratoses (AK). The two study stages are as follows: Stage 1: To determine the electrical properties of permittivity in AK on the hand and bald scalp for subsequent optimisation of the SWIFT instrument to provide the correct dose of microwave energy to the AK. Stage 2: Evaluate the efficacy of microwave energy as a treatment for AK Evaluate the long-term resolution of AK following microwave treatment Assess the feasibility and acceptability of using microwave energy as a treatment for AK Identify the potential mode of action of microwave energy in the treatment of AK. The primary objective is to evaluate the efficacy of microwave therapy versus no treatment on the resolution of AK lesions using visual assessment. The primary outcome measure is full or partial resolution of the AK assessed by skin examination.

Evaluation of the Efficacy and Safety of a thermal fractional skin treatment system (Tixel) for the treatment of facial and/or scalp actinic keratoses

In topical photodynamic therapy (PDT) for non-melanoma skin cancers, a photosensitizing prodrug, 5-aminolaevulinic acid (ALA) or its methylated ester, methyl aminolevulinate (MAL), is converted to the endogenous photosensitizer protoporphyrinIX (PpIX). Reduced response rates are observed in thicker skin lesions, which may be due to insufficient PpIX accumulation within the target tissue. To enhance PpIX production,several physical and chemical pretreatments have been suggested. One of the chemical substances proposed to stimulate PpIX production is vitamin D because of its ability of being a keratinocyte pro-differentiating hormone. Based on in vitro and in animal model studies, we propose to study the potential impact of patient vitamin D pre-treatment in AK response to MAL-PDT.

Topical photodynamic therapy (PDT) is widely used to treat superficial non-melanoma skin cancer (NMSC) and dysplasia, notably actinic keratosis and may also be effective in a range of other dermatological conditions. A major limitation of PDT is pain during irradiation. A lack of knowledge of the mechanism of PDT-induced pain has limited the development of effective approaches for prevention or relief of this adverse effect. The investigators have investigated the possible efficacy of menthol for PDT pain ex vivo and will now study this in a clinical trial. This proposal describes the prospective randomised double blind, placebo controlled clinical trial that will be undertaken to investigate the use of topical menthol for PDT-induced pain relief in patients with actinic keratosis of the face and scalp who will be attending general dermatology and PDT outpatient clinics at Ninewells Hospital, Dundee.

This research study is being done to compare the safety and effectiveness of GDC 695 (test drug) against the currently marketed reference drug (diclofenac sodium gel, 3%) and to establish that these two drugs work better than placebo in the treatment of actinic keratosis.