Active clinical trials for "Squamous Intraepithelial Lesions of the Cervix"

RATIONALE: Diagnostic procedures, such as anal swab collection, digital rectal examination, and anal endoscopy and biopsy, may help find and diagnose anal and genital human papillomavirus infection and squamous intraepithelial lesions and help doctors plan better treatment. PURPOSE: This clinical trial is studying ways to detect anal and genital human papillomavirus infection and squamous intraepithelial lesions in HIV-positive patients enrolled in an AIDS cancer clinical trial.

Lesions classified as "High Grade Squamous Intra-epithelial Lesions" (HSIL) are pre-cervical lesions of the cervix, induced by infection with the Human Papilloma Virus (HPV). The detection and proper management of these lesions greatly reduces the incidence of invasive cervical cancer. Pap smear remains the most effective tool for early detection of low and high-grade cervical lesions. In Belgium, screening for cervical cancer is recommended every 3 years for women between 25 and 65 years old. HPV is a virus who possesses certain oncogenic genes who have the ability to inactivate tumor suppressor genes in the host cell. This promotes a tumorigenesis process within the tissues affected by the virus. The majority of human papillomavirus infections are transient and spontaneously cleared by host defense mechanisms, especially in the first two years after exposure. However, 10-20% of infections persist latently and may eventually lead to progression to invasive cervical cancer. Even high-grade lesions kan naturally be cleared, even more so if the patient is young and immuno-competent. Therefore, the management of HSIL lesions in young women has been modified and consists of adopting mainly a conservative attitude, with controls every 6 months for 2 years. This management makes it possible to avoid unnecessary conizations of the cervix which, in young nulliparous patients, are not devoid of heavy obstetric consequences during subsequent pregnancies (premature birth, perinatal mortality). Cervical conization will only be considered for lesions that progress during follow-up or that persist beyond 2 years. However, this type of follow-up requires that patients be compliant. Our study has two main objectives: to determine the compliance of CHU Brugmann Hospital patients who have been proposed a conservative strategy for the management of HSIL lesions. to identify the predictive factors for the persistence and / or progression of high-grade pre-cancerous dysplastic lesions.

The purpose of this study is to investigate Thiol-disulfide balance in patients with cervical preinvasive lesions

The purpose of this research study is to test the safety and effectiveness of the investigational study vaccine, called TVGV-1. The study will test the vaccine in women with high grade HPV cervical infection.

P16INK4a has recently been described as a surrogate marker for HR-HPV associated squamous and glandular intraepithelial lesions of the cervix. The immunohistochemical staining pattern of p16INK4a in high grade intraepithelial neoplasia of the cervix (CIN 2 and 3) is diffuse, whereas in CIN 1 different staining patterns (diffuse, sporadic, focal or negative) can be seen. The aim of our study is to find out whether the p16INK4a staining pattern of CIN 1 is able to predict the outcome of the lesion. The retrospective part of the study includes cervical biopsies of 200 patients with CIN 1 and clinical follow-up for at least 5 years. p16INK4a staining and HPV detection by IHC will be correlated to clinical outcome.The prospective part of the study includes 300 patients with CIN 1 and LSIL on cytology. HPV detection by HCII and p16INK4a immunohistochemistry on liquid based cytology samples as well as p16INK4a staining and HPV detection by ISH on colposcopy guided biopsies will be correlated to clinical follow-up and colposcopy findings. Slides are analysed by 2 pathologists without knowledge of clinical data.

The purpose of this study is to finalize development of a questionnaire that measures health-related symptoms and concerns for persons diagnosed with, and either treated or monitored for, anal pre-cancer lesions.

The primary objective of this study is to compare the testing of DNA methylation, high-risk HPV subtypes, and cytology with the definite histological results for uterine cervical lesions in a prospective cohort study. This study will include 300 unselected patients with definite histological results. All the cervical specimens of cytology collected in the clinical settings will be utilized for the testing of DNA methylation, high-risk HPV subtypes and thin prep liquid-based cytology test (TCT). The sensitivity, specificity, positive predictive value and negative predictive value were calculated based on the known histological results. The differences of DNA methylation with high-risk human papillomavirus (HPV) and TCT will also be analyzed. The testing of DNA methylation will be performed with the methylation-specific polymerase chain reaction (PCR). The TCT and HPV testing will be performed with the Roche kits.

The primary objective of this study is to compare the testing of DNA methylation, high-risk HPV subtypes, and cytology with the definite histological results in a case-control study, so as to determine the accuracy of DNA methylation in the screening of uterine cervical lesions. This study will include 300 patients with definite histological results, with 100 of cervical inflammation or low grade squamous intraepithelial lesions (LSIL), 100 of high grade squamous intraepithelial lesions (HSIL), and 100 of uterine cervical cancer. All the cervical specimens of cytology collected in the clinical settings will be utilized for the testing of DNA methylation, high-risk HPV subtypes and thin prep liquid-based cytology test (TCT). The sensitivity, specificity, positive predictive value and negative predictive value were calculated based on the known histological results. The differences of DNA methylation with high-risk human papillomavirus (HPV) and TCT will also be analyzed. The testing of DNA methylation will be performed with the methylation-specific polymerase chain reaction (PCR). The TCT and HPV testing will be performed with the Roche kits.