View clinical trials related to Papillomavirus Vaccines.
Filter by:The goal of this clinical trial is to test the feasibility, acceptability, and preliminary efficacy of a storytelling video-based intervention using AI chatbot technology (K-Talk) to promote HPV vaccination behavior among Korean Americans aged 18 to 45. The main questions this study aims to answer are: - Is the K-Talk intervention feasible for use among Korean Americans aged 18 to 45? - Is the K-Talk intervention acceptable to the target population? - What is the preliminary efficacy of the K-Talk intervention in promoting HPV vaccination uptake? Participants will be Korean Americans aged 18 to 45 who are at risk for HPV infection. Participants will be asked to complete a baseline survey and then will be "randomized" into one of four groups: Group 1 (chatbot + storytelling intervention), Group 2 (chatbot only), Group 3 (storytelling only), and Group 4 will be only exposed to written didactic HPV education materials. All groups will receive written didactic HPV education materials. Researchers will compare how Group 1, a combination of AI Chatbot and storytelling intervention is more effective than other intervention groups in promoting HPV vaccination uptake among underserved, hard-to-reach Korean Americans.
The primary objective of this study is to determine the magnitude and breadth of the serum antibody response to the nonavalent HPV vaccine (Gardasil-9) in adults with well-controlled HIV infection. The secondary objective of the study is to observe short term clinical outcomes of prevalent HPV genotype-specific anogenital infections in adults living with HIV who complete the three-dose Gardasil-9 vaccine series. The clinical hypothesis is that adults with virologically controlled HIV mount a serum antibody response to the nonavalent HPV vaccine that is comparable to HIV negative counterparts. We also postulate that HPV vaccination will provide short-term clinical benefit against HPV infections and disease associated with vaccine genotypes.
Vaccine uptake in the United States is lower in rural areas, especially for HPV vaccine. Reminder/recall has been identified as an effective strategy to increase vaccination rates. This study will assess the impact by rurality of vaccine reminder notices sent via the parent's preferred method of communication on HPV vaccination among 12 year-old patients in a regional healthcare system.
In Japan, nationwide prophylactic HPV vaccination was implemented in 2010; a bivalent vaccine was given from 2010 to 2012, and a quadrivalent vaccine from 2012. However, the program essentially ceased in June 2013. 1. Our first objective is to examine the prevalence of 6, 11, 16, 18, 31, 33, 45, 52, and 58 targeted by the nonavalent HPV vaccine in young Japanese women, and identify changes in the prevalence of these HPV types from 2011- 2012 (as reported in JHERS-2016; Sasagawa T, J Med Virol, 2016) to the present time (2020-2021). Especially, the investigators will focus on the prevalence of HPV16 and 18 in women aged 21-26 years and compare these data to those of the previous study. 2. The investigators will assess the prevalence of HPV16 and 18 in women aged 16-18 years and compare these data to those of the HPV vaccine era (2010-2013). 3. The investigators will explore the prevalence of other high-risk HPV types (35, 39, 51, 56, 59, and 68), 11 probable high-risk types (26, 30,34, 53, 66, 67, 69, 70, 73, 82, and 85), and SILs in Japanese young women, since these types might be causative HPV types for cervical cancer in the future after world-wide HPV vaccination. Currently, it is unclear whether HPV vaccination has reduced the prevalence of HPV16 and 18 in Japan. Our previous study (JHERS-2016; performed during 2011-2012; Sasagawa T, J Med Virol, 2016), the only population-based study on HPV prevalence at the commencement of prophylactic HPV vaccination in Japan, included prevalence data for HPV types 6, 11, 16, and 18 and the associated cervical abnormalities. The investigators hypothesize that the prevalence of HPV16 and 18 and the associated diseases (SILs) decreased significantly in women aged 21-26 years in the present, vaccinated group compared to that in similar aged women in 2010-2012 who were unvaccinated. In contrast, the prevalence of HPV and associated diseases may not differ in women aged 27-39 years between the two eras; such subjects may thus serve as a negative control group. Also, HPV prevalence may be higher in present women aged 16-18 years than in women in that age range during the vaccine era, as the former group have not been vaccinated against HPV. The prevalence rates of the other unique high-risk types, namely HPV35, 39, 51, 56, 59, and 68, and probable high-risk types, HPV26, 20, 34, 53, 66, 67, 67, 70, 73, 82, and 85, are unlikely to have been affected by HPV vaccination. However, it is important to monitor the prevalences of these types and the associated SILs, because the types numbered above may become more significant as currently common HPV types are eliminated in the near future.
The focus of this research is on increasing the uptake of the human papillomavirus (HPV) vaccine in young cancer survivors, a vulnerable population at high risk for developing new cancers (such as cervical and anal cancer) caused by persistent HPV infection. An effective vaccine exists that can prevent these cancers, but HPV vaccine uptake is low among young cancer survivors. This research will evaluate the effectiveness and implementation of an evidence-based intervention, adapted for use by healthcare providers in pediatric oncology clinics, to increase the uptake of HPV vaccine among young cancer survivors 9-17 years of age. Results of this research will provide important information that can be used to implement new strategies to increase the uptake of the HPV vaccine among young cancer survivors.
- Background: The majority of the burden of HPV-related cervical cancer is in developing countries while most of the effectiveness reports of HPV vaccination are currently coming from developed countries. Also, currently many adult women are left without either HPV vaccination or cervical cancer screening. Effectiveness data of currently available HPV vaccines among adult women in developing countries are needed for women and healthcare workers and policy makers to best protect women from cervical cancer. - Primary Study Objective: - To determine the effectiveness bivalent and quadrivalent HPV vaccines in reduction of cervical dysplasia (Low-grade Squamous Intraepithelial Lesion or worse; LSIL+) attributable to HPV types 16 or 18 after at least 5 years of vaccination among Thai women vaccinated at their ages 20-45 years with at least one dose of the HPV vaccine - Secondary Study Objectives: - To measure the effectiveness of currently available bivalent and quadrivalent HPV vaccines in reducing the prevalence of HPV 16 or 18 - To measure the effectiveness of HPV vaccines in reducing any abnormal Pap smear result (ASC-US+) - To compare the effectiveness of HPV vaccines according to the number of doses immunized - To find out risk factor(s) for HPV 16 or 18-related cervical dysplasia in this cohort - To assess the prevalence of other high-risk HPV types in vaccinated and non-vaccinated group - To determine direct and/or indirect cost of HPV vaccination - The hypothesis to be tested: At least one dose of vaccination with bi- or quadri-valent HPV vaccine will reduce the prevalence of LSIL+ attributable to HPV 16/18 by 80% after at least 5 years of vaccination. - Materials and Methods: This study will be a retrospective matched cohort study. Data is to be collected either by from samples for Pap and HPV test and/or HPV 16/18 genotyping of the recruited participants, or from existing medical records. HPV vaccinated women at their ages 20-45 years (vaccinated group) and women received Pap smear at their ages 20-45 years without vaccination (control group) will be included in the study. Pap smear and HPV test and/or HPV 16/18 typing result of 2 groups will be compared after ≥ 5 years of vaccination or baseline Pap smear. Those who don't have Pap smear results ≥ 5 years after vaccination or ≥ 5 years after the baseline Pap smear will be offered for a Pap smear and HPV 16/18 typing
Each year the human papillomavirus (HPV) causes 30,000 cancers in the United States despite the availability of very effective and safe vaccines. Uptake of the HPV vaccine has been disappointingly low and lags behind other adolescent vaccines. This study seeks to test interventions targeting health care system, provider, and patient factors to improve the population uptake of the HPV vaccine.
Currently there are no standards for healthcare worker vaccination with the HPV, Gardasil-9 vaccine. For health care workers, the CDC only recommends for vaccination against hepatitis B, influenza virus, Measles, Mumps and Rubella (MMR), Chickenpox (Varicella), Tetanus, Diptheria, and Pertussis (Tdap), and meninogococcal infections6
The University of North Carolina will test the effectiveness of the Centers for Disease Control and Prevention's AFIX model for increasing HPV vaccination coverage among adolescents. AFIX (Assessment, Feedback, Incentives and eXchange) consists of brief quality improvement consultations that immunization specialists from state health departments deliver to vaccine providers in primary care settings. Using immunization registry data, the specialist evaluates the clinic's vaccination coverage and delivers education on best practices to improve coverage. We will compare changes in HPV vaccination coverage before and after consultations for high-volume pediatric and family medicine clinics across three study conditions: traditional consultations (in-person group), virtual consultations (webinar group), or no consultations (control group). In each participating state, 30 clinics will be randomly assigned to each study arm, for a total of 90 clinics per state, or 270 clinics overall. The primary objective of this study is to compare the change in coverage for HPV vaccine initiation among 11-12 year old patients, from baseline to 6-month follow-up. Secondarily, we will compare the change in coverage for other vaccines and age groups.
Infection with human papillomavirus (HPV) has been clearly established as the central cause of cervical cancer. This Phase IV, observer-blind study is designed to evaluate the safety and immunogenicity of Cervarix in HIV infected females aged 15 to 25 years as compared to Merck's HPV vaccine (Gardasil). For comparative purposes, a group of HIV negative females will also be evaluated. All subjects will receive the HPV vaccine (either Cervarix or Gardasil) according to a three-dose schedule (Day 0, Week 6, Month 6).