View clinical trials related to Precancerous Conditions.
Filter by:Colonoscopy is the gold standard for the diagnosis and resection of preneoplastic lesions, allowing the prevention of colon cancer. A colonoscopy is more efficient with proper preparation of the colon, as it allows for a higher rate of adenoma detection and cecal intubation. In routine practice, up to 30% of colonoscopies are poorly prepared and 11% of patients do not show up for their appointment. Adenomas not visualized in the initial colonoscopy due to poor preparation reached 68% and the rate of undetected cancers was 66.7%. A proper colon cleanse is conditioned by different factors; among them, failure to comply with the diet and take laxatives poses 5 times the risk of having a deficient colon preparation. The purpose of our study is the design and implementation of an app that facilitates the preparation of colonoscopy and evaluates its impact on compliance with diet and laxative intake.
Primary: - To measure the rate of perioperative vulvovaginitis in a population of patients in central VA with non-malignant vulvar disease who require surgical excision - To correlate the rate of vulvovaginitis with rate of wound cellulitis and incisional breakdown in patients undergoing SPV/WLE for vulvar disease We will use a vulvovaginal swab to test for the most common causes of vulvovaginitis - bacterial vaginosis (BV), trichomonas, and candida. The swab will be collected preoperatively on day of surgery. The outcome will be evaluated by phone call to patient at 1 week after surgery and physical exam at the postoperative visit between 4-6 weeks.
The aim of study is to evaluate the sensitivity and specificity of using mobile phone photographs versus conventional clinical examination as a screening tool for early detection of oral cancer.
In this study, we proposed a prospective study about the effect of the automatic surveillance system on surveillance rate of patients with gastric premalignant lesions. The enrolled patients were divided into group A with intelligent surveillance system, group B with manual reminder, and group C with natural state. The surveillance among the three groups will be compared.
This study investigates families with at least two cases of B-cell lymphoproliferative disorders (LPD), and evaluates the prevalence of LPD in families, the relationship between medical history, genetic factors, and the risk of familial LPD, and various clinical outcomes for these families in a multiethnic population of Jews and Arabs in Israel.
The purpose of this research is to compare the diagnostic yields of the WATS approach versus the updated Sydney protocol (five standard biopsies in the three gastric regions). • We hypothesize that the WATS technology will increase the overall diagnostic yield up to 35% of gastric premalignant lesions and early gastric cancer. To explore the performance of the existing and novel biomarkers, including the IHCs p53 and MUC2. - We anticipate concordance of the existing biomarkers as adjuncts to the diagnosis. - To accomplish this aim, we will analyze current biomarkers on all study subjects (Aim 1), as well as explore novel gastric biomarkers.
Synucleins are a family of small, highly conserved proteins found in vertebrates and are specially abundant in neurons particularly in presynaptic terminals (Surguchov et al., 2001). Gamma-synuclein is the third member of the synuclein family, and is predominantly found in the cytosol of tumor cells and functions both intra- and extra-cellularly. It is involved in the pathogenesis of different types of cancer and some neurodegenerative diseases (Liu et al., 2018). Smoking - a major risk factor for oral cancer and its progression - and nicotine-containing products were found to time-dependently up-regulate the Gamma-synuclein expression in cancer cells (Hsu et al., 2020a). Gamma-synuclein is released from tumor cells and was found to be elevated in tumors such as urinary bladder cancer (Liu et al., 2016), colorectal cancer, gastric adenocarcinomas and esophageal cancer (Liu et al., 2012). It is present in blood, serum, cerebrospinal fluid and saliva. The detection of extracellular synucleins in body fluids can reveal the first steps of the disease thus it can be used as a potential tool for early cancer detection (Surguchov, 2016). This study aims to identify the diagnostic accuracy of Gamma-synuclein in differentiating between oral malignant lesions and oral premalignant lesions.
This is a non-randomized, phase II, open-label study. The goal of this clinical research study is to investigate how well sintilimab works in preventing high-risk oral premalignant lesions cancerization.
This study aims to evaluate the safety and efficacy of new ablation catheter developed by MEDICAL TAEWOONG for the treatment of pancreatic premalignant and early malignant cystic lesion. The ablation is performed using EUSRA needle and radiofrequncy waves under ultrasound imaging. The method will be exaimened on patients who are candidates for surgical intervention and to examine the ability of the method to serve as an alternative to surgical intervention.
In industrialized countries, cervical cancer is a well controlled disease thanks to the diffusion of Pap test and, in particular, to organized screening programs, which are able to detect and treat pre-invasive lesions (cervical intraepithelial neoplasia, CIN). The human papilloma virus (HPV) has been recognised as the necessary, but not sufficient, cause of cervical cancer, so a new screening test based on the identification of high risk (HR) HPV types has been developed(HPV DNA test). This test has demonstrated to be more effective than cytology in reducing the incidence and the mortality of cervical cancer, but it is less specific, so the use of a test triage is necessary to reduce the number of colposcopies and the risk of over-diagnosis (due to the potential regressivity of pre-invasive lesions). Until now, the triage test used is the cytology (Pap test). Recently specific biomarkers (mRNA and p16 tests) have been introduced for high grade CIN, targeting the molecular alterations strictly associated to transformation rather than simply detecting HR-HPV infections. These tests are more specific than HPV DNA test with a modest reduction of sensitivity for high-grade lesions. This is a multicenter randomised trial nested into some Italian screening programs based on the use of HPV DNA test as primary test. All women with positive HPV DNA test will be tested for cytology and also for mRNA and p16. Women with positive cytology will be referred to colposcopy, while women with negative cytology will be randomized into two arms. This study aims to evaluate if mRNA and p16 could be used as test of triage of HPV DNA or as a primary screening test with direct sending in colposcopy. In particular the main objectives are: - Measuring the cumulative detection rate of CIN2+ in the five years following a HPV DNA positive test and mRNA or p16 negative. - Measuring the potential reduction of overdiagnosis of using mRNA or p16 test instead of DNA, with direct sending in colposcopy - Measuring the reduction of overdiagnosis of cytological triage or triage with mRNA or p16 compared to the direct sending in colposcopy in women with HPV DNA test positive. Secondary objectives are: - to assess the feasibility of mRNA testing in primary screening - to validate the sample techniques for the new tests - to standardize quality controls for the the new tests