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NCT05148559
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.
NCT06535139
There are three main objectives of the protocol. First, we will evaluate the added clinical- and cost- effectiveness of parent-targeted motivational aids (reminder/recall and phone-based MI) alone and when combined with community-targeted healthcare access assistance beyond the effects of clinician-targeted training. Second, we will estimate the differential effectiveness of the implementation strategies by patient-level factors (age, race/ethnicity, sex, distance from home to clinic, social vulnerability). Third, we will measure moderation of implementation strategy effectiveness by clinic-level factors (HPV vaccination priority, resources, clinic visit types, scheduling practices, and implementation success). Within 11 rural North Central Florida counties, we will evaluate the layering of evidence-based implementation strategies that progressively addressing clinician, parent, and healthcare access barriers faced by rural communities on HPV vaccination rates among 9- to 12-year-olds. To best address our main question of whether layering complementary strategies continues to increase effects on HPV vaccination, we will test our hypotheses with a three-arm cluster randomized study design of nested strategies. The proposed nested study design optimizes evaluation, causal inference, and scientific rigor by putting the maximum number of clinics towards addressing the layering of strategies. Randomization will occur at the clinic level. All clinics will receive implementation strategy A: clinician-targeted recommendation training. A random 20 of 30 of clinics will also receive facilitation of parent-targeted motivational aids (B) for an implementation strategy package of A+B. Finally, a random half of the clinics who receive A+B will also receive community-targeted healthcare access (C) for a total implementation strategy package of A+B+C. This equates to a three-arm cluster randomized trial in which 10 clinics receive clinician- targeted recommendation training alone (A), 10 clinics receive clinician-targeted recommendation training and parent-targeted motivational aids (A+B), and 10 clinics receive clinician-targeted recommendation training, parent-targeted motivational aids, and community-targeted healthcare access (A+B+C).
NCT05884697
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.
NCT06002282
The objectives of the study are to pilot test a tailored intervention among Black families with adolescents. The hypotheses are that the study protocol will be feasible and messages tailored to parents' needs will increase vaccine confidence and intention to vaccinate.
NCT05266898
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 objectives of the study are 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, and to determine the protection afforded by Gardasil vaccine over time in previously vaccinated adults living with HIV. 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 and continuing protection against vaccine genotypes of HPV over time.
NCT04180462
Washington University will evaluate the effectiveness of a multi-component implementation strategy to increase use of HPV vaccine in primary care practices.
NCT06854354
Randomized clinical trial with two groups, with a test-retest model, with single-blind approach, using a probabilistic sampling and the population was mothers of girls aged 9 to 12 years from a public elementary school in the state of Puebla. The objective was to determine the effect of the intervention "Vaccine for HPV Prevention" aimed at the acceptance of the HPV vaccine in mothers of girls aged 9 to 12 years old in the urban area of the State of Puebla.
NCT06683664
The goal of this implementation research study is to understand whether a package of community-based interventions can increase access to and uptake of the human papillomavirus (HPV) vaccine among very young adolescent girls and boys in the North and Far North Regions of Cameroon. The main questions this study aims to answer are: * Can a package of community-based interventions increase delivery of routine HPV vaccination to boys and girls aged 9-13 in Cameroon's North and Far North Regions? * What is the acceptability, feasibility, cost, and potential for maintenance and scale of an integrated health intervention to deliver routine HPV vaccination in Cameroon? To evaluate the effectiveness of the intervention, researchers will compare HPV vaccination within regions where the new intervention model is being implemented (intervention areas) to regions where the new routine HPV vaccination delivery model is not being implemented (comparison areas) for approximately 1 year before the new intervention model is implemented and for approximately 9 months after the start of implementation to compare changes over time and between intervention and comparison areas. The study will evaluate the effect of the intervention on HPV vaccination delivery using routine health facility data. To understand acceptability, feasibility, implementation, and potential for scale, the study will enroll participants including health officials and providers, adolescents girls receiving HPV vaccination and other services in intervention areas, and their parents/caregivers. The study will be conducted in two phases, with the first phase focused on gathering formative data through interviews with key informants. This data will be used to inform the design of the intervention, which will be implemented and evaluated in phase 2. Only phase 1 of this study protocol has been currently approved. In phase 1, key informant interview participants will be asked to participate in a an interview to discuss HPV vaccination services and their perspectives on how to integrate HPV vaccination within existing community-based and health facility structures and programs. Key informants will include government officials, health program implementers, representatives from non-government organizations working on HPV vaccine delivery, and healthcare providers, as well as community leaders including school and religious leaders.
NCT02535845
HPV vaccine coverage among adolescents in the US is suboptimal. This is particularly true among traditionally underserved adolescents. Few parent-targeted interventions have focused on the parental decision-making process. Self-persuasion, generating one's own arguments for engaging in a behavior, may be an effective means to influence parents' motivation to vaccinate their children. In a three-phase study, investigators are using quantitative and qualitative research methods to develop and refine a tablet-based self-persuasion intervention for parents who are undecided about the HPV vaccine. This clinical trial submission focuses on the third phase of the study (the second stage is also registered in clinical trials).
NCT02358083
The purpose of this study was to determine whether messages about 1. relative risk of vaccination vs. other activities and 2. strength of doctor's recommendation influenced parental intention to get own child vaccinated against human papillomavirus (HPV) or Influenza.
NCT03763565
* 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
NCT02537756
HPV vaccine coverage among adolescents in the US is suboptimal. This is particularly true among traditionally underserved adolescents. Few parent-targeted interventions have focused on the parental decision-making process. Self-persuasion, generating one's own arguments for engaging in a behavior, may be an effective means to influence parents' motivation to vaccinate their children. In a three-phase study, investigators are using quantitative and qualitative research methods to develop and refine a tablet-based self-persuasion intervention for parents who are undecided about the HPV vaccine. This clinical trial submission focuses on the second phase of the study. The results of the second phase will inform the third phase of the trial (also registered in clinical trials).
NCT00637195
Infection with human papillomavirus (HPV) has been clearly established as the necessary cause of cervical cancer. The current Phase 3b study is designed to assess the immunogenicity and safety of a commercially available vaccine co-administered with GlaxoSmithKline Biologicals' HPV vaccine GSK580299 in healthy female subjects.
NCT00423046
HPV infection has been established as a necessary cause of cervical cancer. GSK Biologicals has developed an HPV-16/18 L1 VLP AS04 vaccine (Cervarix TM) which targets the 2 most common oncogenic HPV types (HPV-16 and HPV-18), found in \> 70%, approximately, of all cervical cancers. Recently, Merck's HPV vaccine Gardasil® \[quadrivalent human papillomavirus (HPV-6,11,16,18 L1 VLP) recombinant vaccine\] has been approved by the FDA for prevention of genital tract cancers and pre-cancers and genital warts in females. Although the GSK HPV vaccine and Gardasil® have different compositions and are expected to have different efficacy profiles, each vaccine targets prevention of HPV-16 and 18 genital tract cancers and pre-cancers. Therefore, a comparison of the immunogenicity of the two vaccines is warranted. This Phase 3b study is designed to compare the immunogenicity of the GSK vaccine (HPV-16/18) to Gardasil® in healthy adult females 18-45 years of age. The Protocol Posting has been updated as the study will be extended by 3 additional years.
NCT02370459
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.