View clinical trials related to Human Papillomavirus.
Filter by:The purpose of this study is to test the effectiveness of the research study vaccine, Gardasil, in men ages 27-45 who have completed 4 years of observation in The Human Papillomavirus [HPV] infection in men (HIM) Study.
Studies indicate that men who have sex with men (MSM) have a high prevalence of anogenital Human papillomavirus (HPV) infection and increased risk for HPV related anogenital lesions including anogenital warts, anal intraepithelial neoplasia (the abnormal proliferation of cells) and anal cancer. Currently in Australia, HPV vaccine for men is not covered by programs. This study will explore the prevalence of HPV infection and sexual behaviours associated with varying prevalence of HPV infection. The investigators will survey 200 MSM aged 16-20 years who just started their sexual life. The investigators will use a questionnaire to collect information of socio-demographic characteristics, lifetime sexual experience, recent sexual experience, the most recent sexual contact, sexually transmitted infections (STIs)/HIV history and testing history, HPV knowledge and attitude, smoking/alcohol/drug/circumcision. The investigators will also collect oral, penile and anal samples as well as blood samples to test for HPV DNA and antibody. The study will include four visits in the 12-month period. In each visit, participants will be asked to fill a questionnaire and provide oral, penile and anal samples as well as blood samples.
The purpose of this study is to analyze and compare the immunogenicity of Bivalent and Tetravalent vaccines against Human Papillomavirus in HIV-infected adult persons.
The natural history of human papillomavirus (HPV) is most likely influenced by both innate and adaptive mucosal immunity. More specifically, we hypothesize that Toll like receptors (TLR) play an important role in cervical innate immunity to HPV through secretions of proinflammatory, chemotactic and anti-viral cytokines. Up-regulated TLR expression will also result in activation of dendritic cells and T cells that in turn will promote a T helper (Th) l like response through secretion of several cytokines and consequently, the induction of a successful cell mediated immune (CMI) response.
The purpose of this study is to investigate the role of the immune system in the response of squamous cell cancers of the head and neck to treatment that includes radiation therapy. Current research demonstrates that several natural immune cells and molecules affect the way the body's immune system interacts with a cancerous growth. Some cancers may be related to infection with a virus, such as the Human Papilloma Virus (HPV). Studying the activity of the immune system in head and neck cancers, especially cancers related to HPV infections, can provide valuable information to better understand the body's interaction with cancer cells.
This research is being done to understand more about a sexually transmitted virus called Human papillomavirus (HPV) in people with oropharyngeal cancer and their partners.
This project will use a community based participatory research orientation to develop a model for large scale "campaign" preventive healthcare interventions. The investigators have considerable expertise with cervical cancer screening and HPV vaccination. The investigators also have well tested methodologies for cervical cancer screening that are highly effective, including self-sampling for HPV and improved specimen transport systems. Therefore, the investigators will use these medical interventions as the model preventive health interventions for this project.
The Global Alliance to Immunize Against AIDS Vaccine Foundation (GAIA Vaccine Foundation or GAIA VF) proposes to carry out a Knowledge, Attitudes, and Practices (KAP) study in conjunction with a Willingness To Participate (WTP) evaluation to establish the prevalence of cervical dysplasia, to and perform Human Papillomavirus (HPV) subtyping studies in Bamako and in Sikoro-Mekin, a village within the perimeter of Bamako, the capital of Mali, West Africa. Working with experienced collaborators, we propose to carry out an HPV prevalence study (among women diagnosed with cervical cancer at Hôpital Touré), coupled with a study of Knowledge, Attitudes and Practices (KAP) and Willingness To Participate (WTP) in an HPV vaccine study among individuals living in Sikoro-Mekin. These studies will lay the groundwork for a phase IV study of Gardasil® at the same site, which would be an important step forward for West Africa.
To conduct a quantitative survey to measure knowledge about Human papillomavirus (HPV) and cervical cancer, and HPV vaccine acceptability among parents of rural adolescent girls in Mysore District, India. Hypothesis: General knowledge and attitudes about the severity and treat ability of cancer will predict acceptability of HPV vaccination among parents of rural adolescent girls in Mysore, India.
Primary objective: • To demonstrate that administration of V503 induces non-inferior Geometric Mean Titers (GMTs) (for serum anti-HPV16 and anti-HPV18) compared to GARDASIL. Secondary objectives: - To evaluate the tolerability of V503 in 9-15 year-old girls. - To summarize humoral immune response (anti-HPV 6, 11, 16, 18) induced by V503 or GARDASIL.