Active clinical trials for "Leukoplakia"

The study was designed as a prospective, multicenter, randomized, open-label, parallel-controlled clinical trial. The study population was patients with vulvar leukoplakia, and compared the efficacy and safety of AI temperature-controlled radio frequency technology and electrical stimulation in the treatment of vulvar leukoplakia. According to the research purpose, the sample size was calculated and determined to be 260 cases, and they were randomly assigned to the observation group and the control group according to the ratio of 1:1, namely 130 cases in the radio frequency observation group and 130 cases in the electric stimulation control group.

This phase II pilot trial studies how well pembrolizumab works in treating leukoplakia. Monoclonal antibodies, such as pembrolizumab, may interfere with the ability of tumor cells to grow and spread.

The aim of the study will be to evaluate the efficacy of a tissue autofluorescence detection system as an aid to clinical screening in identifying lesions of the oral mucosa. The screening process will be performed by 3 clinicians with a different level of experience. Sensitivity and specificity tests will be conducted.

This phase IIb trial tests whether metformin works in preventing oral cancer in patients with oral leukoplakia (white patches) or erythroplakia (red patches). Metformin is in a class of drugs called biguanides. Metformin helps to control the amount of glucose (sugar) in the blood. It decreases the amount of glucose patients absorb from food and the amount of glucose made by the liver. Metformin also increases the body's response to insulin, a natural substance that controls the amount of glucose in the blood. This trial may help researchers determine if metformin can stop changes in the mouth that are related to pre-cancer growths in the mouth.

This research protocol is comparing the effectiveness of surgical excision to the "wait and see" approach for the management of oral leukoplakia and erythroleukoplakia in prevention of oral squamous cell carcinoma onset.

To provide a novel therapy idea and method to solve the clinical problem of postoperative adhesion of bilateral vocal cords, patients enrolled in this study will be applied with curcumin on both wound sites of bilateral vocal cords after the surgery on the bilateral vocal cord endoscopically.

This phase I trial tests whether metformin works in reducing the annual transformation (development of invasive cancer) of oral precancerous lesions into cancerous lesions. Metformin is a drug approved for the treatment of diabetes, but studies have shown that it may have some anticancer properties. Giving metformin may help prevent or slow the development of oral cancer from precancerous lesions.

Oral squamous cell carcinomas (OSCC) is among the most common malignancies worldwide. Early detection and prevention of OSCC is thought to have the highest potential to reduce morbidity and mortality. In prevention, the main focus is on precancerous lesions, especially oral leukoplakia (OLP), as up to 67% of OSCC arise on the basis of OLP. The determination of the transformation risk of OLP by histological determination of the degree of dysplasia is unreliable. A promising marker for the timely development of a OSCC is the detection of antigens of the MAGE-A gene family. The special feature of MAGE-A is that they can be detected in 93% of all OSCC and in approx. 85% of OLP that transform to OSCC. The detection of MAGE-A could also indicate changes in the immunological environment that occur prior to malignant OLP transformation and could be used for immunotherapies. Aim of this study is to investigate MAGE-A as a predictive marker for the malignant transformation of OLP in the setting of a prospective, multicenter study and to establish it as a diagnostic parameter in addition to classical histology. In addition, the association of MAGE-A expression with the occurrence of immunological changes in OLP will be investigated in order to evaluate the possibility of minimally invasive immunotherapy of OLP. The study is intended to include 500 biopsies of non-selected patients with OLP from university institutions and private practices. The follow-up should be at least 3 years, whereby it is examined whether an OSCC on the basis of the original OLP developed. After three years, an interim evaluation of the results with statistical evaluation will be carried out. In order to ensure that the course of the disease is monitored for at least three years for all OLPs, an extension of the monitoring period to 5 years is planned. The study could establish a routine diagnostic parameter to supplement the histo-morphological diagnosis of OLP and evaluate the possibility of immunotherapy of OLP.

This phase IIa trial studies how well metformin hydrochloride works in preventing oral cancer in patients with an oral premalignant lesion (oral leukoplakia or erythroplakia). Oral premalignant lesions look like red or whitish plaques or lesions in the mouth that do not rub off and can be associated with a higher risk of cancer. Metformin hydrochloride may help prevent oral cancer from forming in patients with an oral premalignant lesion.

This research study is studying an immunotherapy drug, as a possible treatment for oral proliferative verrucous leukoplakia (OPVL).