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HPV vaccine efficacy

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https://www.readbyqxmd.com/read/28207677/predictors-of-human-papillomavirus-vaccine-initiation-and-completion-among-latino-mothers-of-11-to-17-year-old-daughters-living-along-the-texas-mexico-border
#1
Daisy Y Morales-Campos, Deborah Parra-Medina
Few Texas Latino girls initiate and complete the human papillomavirus (HPV) vaccine series, but few studies have examined predictors of initiation and completion in this group. Mothers are crucial to vaccine uptake. Using self-reported data from mothers of unvaccinated girls (n = 317), we examined the association between predictors (HPV and HPV vaccine knowledge, vaccine self-efficacy) and outcomes (initiation and completion). Despite an increase in HPV and HPV vaccine knowledge from baseline to follow-up (n = 195), we found no association between the predictors and the outcomes...
April 2017: Family & Community Health
https://www.readbyqxmd.com/read/28196178/association-of-human-papillomavirus-vaccine-with-the-development-of-keratinocyte-carcinomas
#2
Anna J Nichols, Amber Heyna Allen, Shahjahan Shareef, Evangelos V Badiavas, Robert S Kirsner, Tim Ioannides
Importance: Keratinocyte carcinomas (KCs), consisting of squamous cell carcinomas (SCCs) and basal cell carcinomas (BCCs), are the most common human malignant neoplasms. Several risk factors have been implicated in KC development. For some SCCs, particularly those in immunocompromised patients, human papillomavirus (HPV) may be an important factor. Objective: To determine whether quadrivalent HPV vaccination would affect the development of KCs in immunocompetent patients with a history of multiple KCs...
February 8, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28193249/factors-associated-with-parental-reasons-for-no-intent-to-vaccinate-female-adolescents-with-human-papillomavirus-vaccine-national-immunization-survey-teen-2008-2012
#3
Vinay K Cheruvu, Madhav P Bhatta, Lauren N Drinkard
BACKGROUND: 1) To identify socio-demographic factors associated with parental "no-intent" for their 13-17 year old unvaccinated daughter to receive the human papillomavirus (HPV) vaccine series within the next twelve months, 2) to describe patterns in "no-intent" by socio-demographic factors, and 3) to identify socio-demographic factors associated with parental reasons for "no-intent". METHODS: Data from 2008-2012 National Immunization Survey - Teen (NIS - Teen) were examined in this study...
February 13, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28166180/therapeutic-vaccine-against-primate-papillomavirus-infections-of-the-cervix
#4
Emeline Ragonnaud, Anne-Marie C Andersson, Silmi Mariya, Anders G Pedersen, Robert D Burk, Antonella Folgori, Stefano Colloca, Riccardo Cortese, Alfredo Nicosia, Joko Pamungkas, Diah Iskandriati, Peter J Holst
Currently available prophylactic vaccines have no therapeutic efficacy for preexisting human papillomavirus (HPVs) infections, do not target all oncogenic HPVs and are insufficient to eliminate the burden of HPV induced cancer. We aim to develop an alternative HPV vaccine which is broadly effective and capable of clearing preexisting infection. In an initial attempt to develop a broadly reactive therapeutic vaccine, we designed a putative papillomavirus (PV) ancestor antigen (circulating sequence derived antigenic sequences E1E2-CDSE1E2) based on the conserved E1 and E2 protein sequences from existing oncogenic HPV strains...
February 2017: Journal of Immunotherapy
https://www.readbyqxmd.com/read/28118846/ecological-validity-of-cost-effectiveness-models-of-universal-hpv-vaccination-a-protocol-for-a-systematic-review
#5
Giampiero Favato, Emmanouil Noikokyris, Riccardo Vecchiato
BACKGROUND: Sexually transmitted infection with high-risk, oncogenic strains of human papillomavirus (HPV) still induces a relevant burden of diseases on both men and women. Although vaccines appear to be highly efficacious in preventing the infection of the most common high-risk strains (HPV 6, 11, 16, 18), important questions regarding the appropriate target population for prophylactic vaccination are still debated. Models in the extant literature seem to converge on the cost-effectiveness of high coverage (>80%) of a single cohort of 12-year-old girls...
January 25, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28087890/overview-of-the-benefits-and-potential-issues-of-the-nonavalent-hpv-vaccine
#6
REVIEW
Luciano Mariani, Mario Preti, Paolo Cristoforoni, Carlo M Stigliano, Antonio Perino
HPV-related diseases affect anogenital and oropharyngeal regions, heavily affecting the psychosexual dimension of both male and female individuals. HPV vaccination programs based on a bivalent or quadrivalent vaccine have opened broad perspectives for primary prevention. A nonavalent HPV vaccine (9vHPV), covering nine genotypes (HPV6, HPV11, HPV16, HPV18, HPV31, HPV33, HPV45, HPV52, and HPV58), might provide further improvement in terms of direct protection. In the present report, efficacy and safety data from 9vHPV vaccine development programs are examined...
December 7, 2016: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28056826/hpv-genotypes-distribution-in-indian-women-with-and-without-cervical-carcinoma-implication-for-hpv-vaccination-program-in-odisha-eastern-india
#7
Rashmirani Senapati, Bhagyalaxmi Nayak, Shantanu Kumar Kar, Bhagirathi Dwibedi
BACKGROUND: Considering the limited cross protection offered by the current HPV vaccines, understanding the HPV genotype distribution among the different population is essential in predicting the efficacy of current vaccine and devising new vaccine strategy. The present work aimed at investigating the HPV genotypes distribution among women with and without cervical carcinoma in Odisha, Eastern India. METHODS: A total of 607 participants have been enrolled between January 2014 and June 2016...
January 5, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28053505/spotlight-on-the-9-valent-hpv-vaccine
#8
REVIEW
Pier Luigi Lopalco
Starting in 2006, vaccination against human papillomavirus (HPV) has been progressively implemented in most developed countries. Two vaccines have been successfully used, a bivalent vaccine targeting HPV-related cancers (bHPV) and a quadrivalent vaccine (qHPV) targeting both HPV-related cancers and genital warts. Between December 2014 and June 2015, a new nonavalent HPV vaccine (9vHPV) was granted marketing authorization in the USA and Europe. The 9vHPV was developed from the qHPV and includes five additional HPV types that should increase the level of protection toward HPV-related cancers...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28049151/modulation-of-microrna-mrna-target-pairs-by-human-papillomavirus-16-oncoproteins
#9
Mallory E Harden, Nripesh Prasad, Anthony Griffiths, Karl Munger
: The E6 and E7 proteins are the major oncogenic drivers encoded by high-risk human papillomaviruses (HPVs). While many aspects of the transforming activities of these proteins have been extensively studied, there are fewer studies that have investigated how HPV E6/E7 expression affects the expression of cellular noncoding RNAs. The goal of our study was to investigate HPV16 E6/E7 modulation of cellular microRNA (miR) levels and to determine the potential consequences for cellular gene expression...
January 3, 2017: MBio
https://www.readbyqxmd.com/read/28042137/immunogenicity-and-safety-of-human-papillomavirus-hpv-vaccination-in-asian-populations-from-six-countries-a-meta-analysis
#10
Didik Setiawan, Jos Luttjeboer, Koen B Pouwels, Jan C Wilschut, Maarten J Postma
Cervical cancer is a serious public-health problem in Asian countries. Since human papillomavirus (HPV) infection is the main risk factor for cervical cancer, HPV vaccination is considered a promising strategy to prevent cervical cancer. However, comprehensive immunogenicity and safety information for Asian populations is lacking. We searched four electronic databases including PubMed, EMBASE, Cochrane Library, and clinicaltrials.gov. We reviewed selected manuscripts and extracted the pooled relative risk (RR) from immunogenicity and safety information on HPV vaccination among women in Asian countries...
January 1, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28034371/vaccines-against-human-papillomavirus-infections-protection-against-cancer-genital-warts-or-both
#11
REVIEW
E A Joura, S Pils
Since 2006, three vaccines against infections and disease caused by human papillomavirus (HPV) became available in Europe-in 2006 a quadrivalent HPV 6/11/16/18 vaccine, in 2007 a bivalent HPV 16/18 vaccine and in 2015 a nonavalent HPV 6/11/16/18/31/33/45/52/58 vaccine. HPV 16 and 18 are the most oncogenic HPV strains, causing about 70% of cervical and other HPV-related cancers, HPV 6 and 11 cause 85% of all genital warts. The additional types of the polyvalent vaccine account for about 20% of invasive cervical cancer and >35% of pre-cancer...
December 1, 2016: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28006858/eurogin-2016-roadmap-how-hpv-knowledge-is-changing-screening-practice
#12
REVIEW
Nicolas Wentzensen, Marc Arbyn, Johannes Berkhof, Mark Bower, Karen Canfell, Mark Einstein, Christopher Farley, Joseph Monsonego, Silvia Franceschi
Human papillomaviruses (HPV) are the necessary cause of most cervical cancers, a large proportion of other anogenital cancers, and a subset of oropharyngeal cancers. The knowledge about HPV has led to development of novel HPV-based prevention strategies with important impact on clinical and public health practice. Two complementary reviews have been prepared following the 2015 Eurogin Conference to evaluate how knowledge about HPV is changing practice in HPV infection and disease control through vaccination and screening...
December 22, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28004837/the-de-and-fg-loops-of-the-hpv-major-capsid-protein-contribute-to-the-epitopes-of-vaccine-induced-cross-neutralising-antibodies
#13
Sara L Bissett, Anna Godi, Simon Beddows
The human papillomavirus (HPV) vaccines consist of major capsid protein (L1) virus-like particles (VLP) and are highly efficacious against the development of cervical cancer precursors attributable to oncogenic genotypes, HPV16 and HPV18. A degree of vaccine-induced cross-protection has also been demonstrated against genetically-related genotypes in the Alpha-7 (HPV18-like) and Alpha-9 (HPV16-like) species groups which is coincident with the detection of L1 cross-neutralising antibodies. In this study the L1 domains recognised by inter-genotype cross-neutralising antibodies were delineated...
December 22, 2016: Scientific Reports
https://www.readbyqxmd.com/read/28003597/safety-and-immunogenicity-study-of-a-9-valent-human-papillomavirus-vaccine-administered-to-9-to-15-year-old-japanese-girls
#14
Satoshi Iwata, Shinya Murata, Shi Rong Han, Akira Wakana, Miyuki Sawata, Yoshiyuki Tanaka
A 9-valent human papillomavirus (HPV 6/11/16/18/31/33/45/52/58) virus-like particle (VLP) vaccine (9vHPV) has been proven highly efficacious in preventing anogenital disease related with vaccine HPV types in a pivotal Phase III study in women aged 16 to 26 years. We report here the results of an open-label phase III study conducted to bridge the findings in women age 16 to 26 years to Japanese girls aged 9 to 15 years. All subjects (n = 100) received a 3-dose regimen of 9vHPV vaccine at day 1, month 2 and month 6...
December 22, 2016: Japanese Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27998015/efficacy-immunogenicity-and-safety-of-the-hpv-16-18-as04-adjuvanted-vaccine-in-chinese-women-aged-18-25%C3%A2-years-event-triggered-analysis-of-a-randomized-controlled-trial
#15
Feng-Cai Zhu, Shang-Ying Hu, Ying Hong, Yue-Mei Hu, Xun Zhang, Yi-Ju Zhang, Qin-Jing Pan, Wen-Hua Zhang, Fang-Hui Zhao, Cheng-Fu Zhang, Xiaoping Yang, Jia-Xi Yu, Jiahong Zhu, Yejiang Zhu, Feng Chen, Qian Zhang, Hong Wang, Changrong Wang, Jun Bi, Shiyin Xue, Lingling Shen, Yan-Shu Zhang, Yunkun He, Haiwen Tang, Naveen Karkada, Pemmaraju Suryakiran, Dan Bi, Frank Struyf
We previously reported the results of a phase II/III, double-blind, randomized controlled study in Chinese women (NCT00779766) showing a 94.2% (95% confidence interval: 62.7-99.9) HPV-16/18 AS04-adjuvanted vaccine efficacy (VE) against cervical intraepithelial neoplasia grade 1 or higher (CIN1+) and/or 6-month (M) persistent infection (PI) with a mean follow-up of <2 years, and immunogenicity until 7 months post-dose 1. Here, we report efficacy and safety results from an event-triggered analysis with ~3 years longer follow-up, and immunogenicity until M24...
January 2017: Cancer Medicine
https://www.readbyqxmd.com/read/27986194/cost-effectiveness-study-of-hpv-vaccination-as-a-primary-prevention-strategy-for-anal-cancer-in-hiv-positive-men-in-chile
#16
Constanza Vargas Parada, J Lennert Veerman
BACKGROUND: Most anal cancers are caused by the human papilloma virus (HPV) infection. The incidence is increasing, especially in high-risk individuals such as HIV-positive men. Evidence shows that the new quadrivalent HPV vaccine reduces the rates of anal intraepithelial neoplasia among men who have sex with men. OBJECTIVE: To determine whether vaccinating against HPV-related anal cancer is cost-effective in HIV-positive men in Chile. METHODS: A cost-effectiveness analysis was conducted by constructing a cohort multistate life-table-based Markov model in MS Excel in which the prevention of HPV infection was expected to influence the incidence of anal cancer in HIV-positive men...
December 2016: Value in Health Regional Issues
https://www.readbyqxmd.com/read/27980375/cross-sectional-study-investigating-the-differences-in-knowledge-and-behaviors-about-hpv-between-vaccinated-and-non-vaccinated-girls
#17
REVIEW
M R Gualano, M Stillo, M V Mussa, C M Zotti
INTRODUCTION: The aim of the presents study was to compare the level of knowledge about Human Papilloma Virus (HPV) in vaccinated and non-vaccinated girls and to highlight the reasons why non-vaccinated girls refuse vaccination. METHODS: A cross-sectional study was conducted from October 2012 to June 2013 in Turin (Piemonte Region, Italy). Questionnaires were administered to girls attending secondary and high schools randomly selected. RESULTS: A total of 576 were compiled...
September 2016: Journal of Preventive Medicine and Hygiene
https://www.readbyqxmd.com/read/27968896/parental-decision-making-with-regards-to-vaccination-against-human-papilloma-virus-in-adolescent-girls-in-hong-kong-china-a-prospective-cohort-study
#18
Linda D L Wang, Wendy W T Lam, Richard Fielding
BACKGROUND: Uptake of vaccination against human papilloma virus (HPV) remains low among adolescent girls in Hong Kong, China, despite long-standing vaccine availability. We examined predictors of Chinese parents' decision-making regarding their adolescent daughters' vaccination using an extensively modified Theory of Planned Behaviour. METHODS: During 2014 we did a population-based random sample of Chinese parents in Hong Kong who were aware of HPV vaccine and had at least one unvaccinated daughter aged 12-17 years...
October 2016: Lancet
https://www.readbyqxmd.com/read/27956145/recent-advances-in-preclinical-model-systems-for-papillomaviruses
#19
REVIEW
Neil D Christensen, Lynn R Budgeon, Nancy M Cladel, Jiafen Hu
Preclinical model systems to study multiple features of the papillomavirus life cycle have greatly aided our understanding of Human Papillomavirus (HPV) biology, disease progression and treatments. The challenge to studying HPV in hosts is that HPV along with most PVs are both species and tissue restricted. Thus, fundamental properties of HPV viral proteins can be assessed in specialized cell culture systems but host responses that involve innate immunity and host restriction factors requires preclinical surrogate models...
December 9, 2016: Virus Research
https://www.readbyqxmd.com/read/27934795/current-global-status-impact-of-human-papillomavirus-vaccination-implications-for-india
#20
REVIEW
Rengaswamy Sankaranarayanan, Neerja Bhatla, Partha Basu
This review addresses the effectiveness and safety of human papillomavirus (HPV) vaccines, the current status of its introduction in the National Immunization Programmes (NIPs) and its relevance to India, which contributes a fifth of the global burden of cervical cancer. The vast literature on efficacy, acceptability and safety of HPV vaccination and its impact after population level introduction was reviewed and discussed. The efficacy of HPV vaccines in preventing high-grade precancerous lesions caused by vaccine-targeted HPV infections was 90 per cent or higher in HPV naοve women in randomized clinical trials...
August 2016: Indian Journal of Medical Research
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