View clinical trials related to Keratosis.
Filter by:To compare the relative efficacy and safety and of 5-FU Cream to the marketed formulation Efudex® (5-FU) Cream, and to demonstrate the superior efficacy of the two active formulations over that of the Vehicle Control Cream, in the treatment of actinic keratosis.
Guidelines for photodynamic therapy (PDT) of actinic keratosis recommend pretreatment with curettage. The impact of curettage on the treatment effect is, however, not known. The present study aimed to evaluate whether daylight-PDT without curettage would reduce treatment effect compared to daylight-PDT with curettage.
To explore the pharmacodynamics and evaluate safety, tolerability and clinical efficacy of ICVT comprised of digoxin and furosemide (dual agent), digoxin (single agent), furosemide (single agent) in patients with AK.
This study is designed as a double-blinded proof of concept of feasibility study to define if the immunosuppression associated with photodynamic therapy (PDT) can be blocked by treatment with cyclo-oxygenase-2 (COX-2) inhibitor celecoxib in comparison to placebo. PDT consists of application of the photosensitizer 5-aminolevulinic acid followed by treatment with a blue light. PDT is used to treat pre-cancerous actinic keratosis on large areas of skin. These studies are a continuation of ongoing studies that indicate that the lipid mediator platelet-activating factor (PAF) is generated in skin following PDT, and that PDT suppresses the immune system. It is hypothesized that PDT-generated PAF results in the immunosuppression associated with PDT. Therefore, it is proposed that a treatment to block that immunosuppression could protect the patient undergoing PDT. Blockers of the PAF system are not currently commercially available. However research studies done at Wright State University using mice indicate that PAF- and PDT-induced immunosuppression is blocked by treatment with COX-2 inhibitors. This study is conducted as a proof of concept. Study length and visit for subjects with actinic keratoses: The first part of the study is completed in 12 days then there are follow up visits at 6 and 12 months. There are a total of 6 separate visits to the research office. Study length and visit for control subjects: The study is completed in 10 days. There are a total of 4 separate visits to the research office.
Background Actinic keratoses (AKs) are often treated separately, lesion by lesion. However, in the past years, AKs have been described as a field disease and not limited to single clinically apparent lesions. Treatment should therefore target an area of field change which may treat the subclinical AKs and reduce the risk of development of further AKs, second tumours, and local recurrence. Objectives The investigators sought to investigate whether field ALA-PDT of facial actinic keratosis would prevent new AKs, in comparison with a lesion area receiving the same ALA-PDT, in patients with clinical signs of field cancerization. Methods Eighty patients, previously diagnosed as having AKs of the face, were randomized distribution into two groups. 10% aminolaevulinic acid (ALA)-PDT for field treatment was on one group and for a lesion area (Vehicle control cream was applied to the non-lesion area) was on the other group. During the next 5-year period of follow up, patients were clinically evaluated for new AKs.
Arsenicosis is a major health problem in Bangladesh. Long term exposure of arsenic causes keratosis of palm which reduce working capacity of patient. It also causes invasive skin lesions like Bowen's disease which has a risk to develop squamous cell carcinoma. Brinjal peel is well known for its antioxidant and anticancer properties. So this study will be conducted to identify the compound from brinjal peel extract and to see its outcome on keratosis and Bowen's disease.
Arsenicosis is a massive public health hazard in Bangladesh. Prolonged consumption of water containing high concentration arsenic leads to arsenicosis which is characterized by dermatological features i.e. diffuse melanosis , spotted melanosis and keratosis. Cock's comb is rich in hyaluronic acid, chondroitin sulfate A, B, C and heparin. Hyaluronic acid is a hydrophilic molecules and is a constituent of wound extracellular matrix and facilitate wound healing.This work is aimed to identify the component that is effective in palmar arsenical keratosis.
It had been found in certain studies that there is an alteration of normal skin flora in patients with arsenical keratosis. The relationship between such altered skin flora and development of keratosis in arsenicosis is not established or explored.There is no such study where effects of antimicrobials have been evaluated as the treatment of arsenical keratosis. So the present study is designed to see the effects of antimicrobials on the altered skin flora (Enterobacter and Aspergillus) in patients with palmar arsenical keratosis.
This study evaluates the potential usefulness of photodynamic therapy with PD P 506 A in patients with actinic keratosis on the upper extremities for the first time.
Background Limited in the depth of absorption and penetration of photosensitizers, ALA-PDT treatment is not strong enough for thickening significantly AK lesions. Pre-study has proved that plum-blossom needling facilitates delivery of topical ALA into the dermis. It could help ALA to diffuse a little more broadly in superficial dermis and obtain similar clinical effect with a much lower cost. Objective We sought to investigate whether plum-blossom needling (PBN) would enhance the efficacy of ALA-PDT for AKs. Methods Two hundred and fifty patients, previously diagnosed as having AKs of the face and scalp, were randomized distribution into two groups. The PBN-ALA-PDT group underwent vertical skin tapping with PBN before applying 10% ALA cream and narrow-band light-emitting diode (LED) irradiation (mean 633 nm, with a standard deviation [SD] of 10 nm; 100-200 J/cm2). The ALA-PDT group received ALA cream and irradiation only. During the next 1 year period of follow up, patients were clinically evaluated for new AKs.