Active clinical trials for "Leukoplakia"

Oral leukoplakia is a precancerous lesion with relatively high malignant transformation potential. They are often treated by wide surgical excisions or conservative retinoids therapy. The use of high power ablative lasers has been proposed as an effective way of treating these lesions safely. The aim of this study was to evaluate efficiency Er:YAG and Er,Cr:YSGG laser, in the treatment of oral leukoplakia.

RATIONALE: Aspirin mouthwash may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. PURPOSE: This phase I trial is studying the side effects and best dose of aspirin mouthwash in treating patients with oral leukoplakia.

Oral leukoplakia within the mouth is a visible white patch which can develop into cancer if not treated. There is no good treatment for these lesions, apart from surgery which is associated with significant side effects and physical deformation of the treated area. The investigators hypothesized that photodynamic therapy can be used safely and effectively to induce significant regression of oral leukoplakia.

Pre-malignant lesions are difficult to treat. Even after surgical removal they tend to re-appear. Often the lesions are to large and are apparent on many sites, therefore surgical removal is not always possible. The photodynamic therapy uses a special substance, which is absorbed in cells, and thereafter activated by a defined light. The aim of this study is to compare the photodynamic therapy in potentially malignant lesions to a placebo. The investigators assume a significant better result in photodynamic therapy then treatment with a placebo.

Photodynamic therapy for oral leukoplakia and erythroleukoplakia

RATIONALE: Chemoprevention therapy is the use of certain drugs to try to prevent the development of or treat early cancer. Fenretinide may be an effective drug in treating leukoplakia. PURPOSE: Randomized phase II trial to study the effectiveness of fenretinide in treating patients who have leukoplakia of the mouth.

This is a single center, open-label, interventional pilot study to assess the feasibility, safety, and preliminary efficacy of intralesional 5-FU injections for the treatment of oral leukoplakia (OL).

This randomized phase II trial is studying how well Bowman-Birk inhibitor concentrate works in preventing cancer in patients with oral leukoplakia. Chemoprevention is the use of certain substances to keep cancer from forming, growing, or coming back. The use of Bowman-Birk inhibitor concentrate, a substance made from soy, may keep cancer from forming in patients with oral leukoplakia

This phase II trial studies how well pioglitazone hydrochloride works in preventing head and neck cancer in patients who have oral leukoplakia. Chemoprevention therapy is the use of certain drugs to try to prevent the development or recurrence of cancer. The use of pioglitazone hydrochloride may be effective in preventing head and neck cancer.

RATIONALE: Chemoprevention is the use of certain drugs to keep cancer from forming, growing, or coming back. The use of celecoxib may prevent or treat head and neck cancer. PURPOSE: This randomized phase II trial is studying celecoxib to see how well it works compared to placebo in preventing head and neck cancer in patients with oral leukoplakia.