Active clinical trials for "Papillomavirus Infections"

primary purpose:Evaluate the prevalence and incidence of HPV infection and related diseases in subjects. Secondary purpose:Analyze risk factors of HPV infection and related diseases.

Up to 30% of Canadian women do not participate in Pap smear screening for cervical cancer prevention despite many being members of family practices and having access to family physicians. One reason is reluctance to undergo pelvic examination. The investigators purpose is to determine whether the offer of vaginal self sample collection for oncogenic human papillomavirus (HPV) testing increases participation in cervical cancer screening compared to repeat reminder for Pap smear testing among female family practice members who have not previously responded to invitations for Pap testing.

The population of HIV infected women seen at Boston Medical Center may have a higher frequency of anal cytologic and histologic abnormalities than what is reported for the non-HIV infected population.

Hypothesis: If high risk genotypes of human papillomavirus (HPV) is the cause of cervical cancer worldwide, the genotypes associated with cervical cancer in Venezuela would be the same types found in other countries. Objectives: Primary objective: The objective of this investigation is to determine the presence and genotypes of HVP infection in cervical intraepithelial neoplasia grade 2/3 (CIN 2/3), and Stage I cervical epidermoid carcinoma and cervical adenocarcinoma. Specific objectives: To establish the presence of HPV in cervical cancer patients in Venezuela by geographic distribution. To establish which HPV types are linked with cervical cancer in Venezuela by geographic distribution.

Primary Objectives: To determine whether high-risk sexual behaviors are more common in patients with oropharyngeal cancer than in patients with head and neck cancers of other sub-sites. To determine if high-risk sexual behaviors are more common in patients with HPV (human papillomavirus) associated head and neck cancer than those without evidence of HPV-16 infection.

The aim of the study is to develop and implement robust analytical protocols for first-void urine sample preparation and antibody assays to monitor vaccine induced immunity against HPV (Human Papillomavirus).

Australia was one of the countries to implement a universal school-based male vaccination program - in 2013. This research project will examine the prevalence of HPV among young men who have sex with men (MSM) who have been offered school-based HPV vaccination.

HPV infections may be responsible for different types of cancer in females. Primary Goal of the study was to identify the prevalence of an hpv affiliation in retrospective-prospective analysed cohort of patients who suffer from vulvar cancer and their preinvasive lesions.

The purpose of this study is to determine the prevalence and type distribution of genital human papillomavirus (HPV) infection in Tanzanian men.

The purpose of this study is to gain a better understanding of the body's response to a human papillomavirus (HPV) (sexually transmitted disease), vaccine and booster shot. The study will also determine factors related to adolescents not following vaccination schedules. The HPV vaccine requires 3 doses (shots). Girls sometimes receive the 3 shots at the recommended time and sometimes girls receive the shots at non-recommended times. This study will evaluate if getting the shots at non-recommended times affects the level of protection provided by the vaccine. Participants will include about 1400 girls 9-17 years old receiving a third dose of HPV vaccine from their primary care clinician. The parent/legal guardian of each subject may answer a questionnaire related to the vaccine schedule. Study procedures include: medical history, questionnaires and blood draws. Participants will be involved in the study for about 6 months from time of enrollment.