Active clinical trials for "Papillomavirus Infections"

This is a post-licensure safety surveillance program to detect potential safety signals in subjects, from the managed care organizations database, who have used GARDASIL™.

Background: - National Cancer Institute Protocol 04-C-N191, also known as the Costa Rica Vaccine Trial, was a double-blind controlled study of the effectiveness of an experimental human papillomavirus (HPV) vaccine in preventing cervical cancer in young women in Costa Rica. Costa Rica was part of the first large study to show the association between HPV and cervical cancer, and the study contributed greatly to the understanding of this association. The women who have participated in the vaccine trial in Costa Rica are reaching the end of the follow-up period offered in the vaccine trial protocol, and as a result they are being offered the chance to have complementary vaccinations against HPV, hepatitis A, and hepatitis B. Objectives: To offer participants in the Costa Rica Vaccine Trial the vaccine that they did not receive during the masked portion of the trial (HPV vaccine or hepatitis A vaccine) and hepatitis B vaccination. To collect information about exposure to known and suspected risk factors for HPV infection and cervical cancer from women who are receiving vaccination against HPV at crossover. Eligibility: - Women who participated in National Cancer Institute Protocol 04-C-N191. Design: All participants will be offered vaccination against hepatitis B. Women who received the hepatitis A vaccine during the trial will be offered vaccination against HPV. Women who received the HPV vaccine during the trial will be offered vaccination against hepatitis A. Appropriate vaccinations (including a combined hepatitis A and hepatitis B vaccine) will be available to reduce the number of injections that participants will be asked to receive. All vaccines will be given according to the manufacturer's specifications for appropriate length of time between vaccine doses.

This is a research study looking at gene characteristics in blood and Pap smear samples in hopes of identifying markers that will predict if the HPV infection is present or not.

RATIONALE: Gathering information about human papilloma virus (HPV) infection in HIV-positive men who have sex with men may help doctors learn more about the disease. PURPOSE: This clinical trial is studying HPV infection in HIV-positive Indian men who have sex with men.

This study aims to compare the expression of matrix metalloproteinases and their tissue inhibitors between 4 groups of patients defined according to the severity of the cervical lesion.

Human Papilloma Virus (HPV) is one of the most common causes of sexually transmitted diseases and its link with malignancies is well established, especially with anogenital tract cancers (cervical, vaginal, vulvar, anal cancers). HPV 16 and 18 are the most commonly isolated HPV types in cervical cancer, however not all infections with HPV 16 or 18 progress to cancer. After the HPV test has been used in cervical cancer screening, there have been concerns about whether women carry this virus. Although HPV testing may cause negative emotional responses, adverse emotional responses are related to HPV infection rather than testing. In this respect, there were several studies which evaluated the quality of life and psychological responses of women with positive HPV test results and it is known that positive HPV test results cause additional anxiety, distress and negative emotional responses in women. We hypothesized that the awareness of having a sexually transmitted infection in women with HPV and, therefore, a close follow-up and the need for further investigation such as colposcopy can affect their sexual life. In this study, we aimed to observe the changes in sexual function and anxiety of the HPV positive women with validated objective tools after being informed about their co-test results.

Longitudinal observational cohort study and extension of the MISP ID: 38406 'immunogenicity and safety of quadrivalent human papillomavirus vaccine in HIV-infected pre-adolescent girls and boys in Kenya'.

Vaginal infections demonstrated to be implicated in the persistence of HPV, activating a vicious circle of vaginal microbial perturbations. HPV infection can destroy the biofilm barrier formed by the local vaginal immune microenvironment, leading to a condition called dysbiosis. Contemporarily, the resulting local microecological imbalance in the vagina can subsequently upregulate the expression of the HPV protein, increasing HPV-related cytological alterations.

Despite declining mortality in high-income countries, cervical cancer continues to be a public health problem in low and middle -income countries. HPV tests have shown a better sensibility and a higher capacity of reducing mortality than cytology based-screening. Greater participation has been demonstrated with the use of HPV self-testing when it is offered to women with a poor screening history; however, it is not clear whether getting tested necessarily translates into a greater adherence to the entire clinical protocol, including diagnosis and treatment of precancerous lesions. The aim of this study is to evaluate the effect of the self-testing techniques on the participation and adherence of women to cervical cancer screening.

Background: Currently prevalence of HPV infections for high risk strains among young women in Switzerland is unknown. In addition, since 2008 a vaccination program to prevent these infections has been implemented in a number of cantons, but its actual population impact is currently unknown. For now, HPV screening in Switzerland is mainly performed by gynecologists or during gynecological consultation at hospital. This method is certainly effective, but expensive; population coverage of screening is still insufficient. A whole segment of the target population does not participate in this screening especially young people of foreign origin, for various reasons: economic cost, no gynecological, and for other reasons. Several studies raise the effectiveness and efficiency of self-sampling to increase coverage of screening, and the rate of participation of non-participants. Through this study, the investigators evaluate effectiveness of this vaccination on the prevalence of HPV infections using HPV prevalence kit and assess evolution of infection and clearance of HPV virus during 5 years in a population of young unvaccinated and vaccinated women. Method: During the study, each participants will perform a vaginal swab sampling by auto to research HPV. These samples will be sent to a laboratory where HPV typing is done by PCR using the Anyplex ™ II technology. The study will focus on a sample of 400 young women. Participants must complete a questionnaire containing demographic questions and their HPV immunization status. Vaccination coverage expected in this population is about 50%. Depending on the state of vaccination, two different groups will be vaccinated vs unvaccinated (200 women per group). The cases of HPV infection are then calculated for each group and compared as a function of the status of vaccination. Statistical tests will be applied McNemar's test for comparison between the HPV prevalence rates between the 2 groups. Expected Results: This study will allow us to confirm the possibility of using self-sampling as a method of screening and monitoring of HPV infections in the general population, it will also enable us to document the effectiveness of HPV vaccination by comparing prevalence rate of HPV infections among a group of young girls vaccinated and not vaccine and assess evolution of infection and clearance of HPV virus.