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Chen YC, Chen YY, Su SY, Jhuang JR, Chiang CJ, Yang YW, Lin LJ, Wu CC, Lee WC. Projected Time for the Elimination of Cervical Cancer Under Various Intervention Scenarios: Age-Period-Cohort Macrosimulation Study. JMIR Public Health Surveill 2024; 10:e46360. [PMID: 38635315 PMCID: PMC11066752 DOI: 10.2196/46360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 09/11/2023] [Accepted: 02/08/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND The World Health Organization aims for the global elimination of cervical cancer, necessitating modeling studies to forecast long-term outcomes. OBJECTIVE This paper introduces a macrosimulation framework using age-period-cohort modeling and population attributable fractions to predict the timeline for eliminating cervical cancer in Taiwan. METHODS Data for cervical cancer cases from 1997 to 2016 were obtained from the Taiwan Cancer Registry. Future incidence rates under the current approach and various intervention strategies, such as scaled-up screening (cytology based or human papillomavirus [HPV] based) and HPV vaccination, were projected. RESULTS Our projections indicate that Taiwan could eliminate cervical cancer by 2050 with either 70% compliance in cytology-based or HPV-based screening or 90% HPV vaccination coverage. The years projected for elimination are 2047 and 2035 for cytology-based and HPV-based screening, respectively; 2050 for vaccination alone; and 2038 and 2033 for combined screening and vaccination approaches. CONCLUSIONS The age-period-cohort macrosimulation framework offers a valuable policy analysis tool for cervical cancer control. Our findings can inform strategies in other high-incidence countries, serving as a benchmark for global efforts to eliminate the disease.
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Affiliation(s)
- Yi-Chu Chen
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Yun-Yuan Chen
- Head Office, Taiwan Blood Services Foundation, Taipei, Taiwan
| | - Shih-Yung Su
- Master Program in Statistics, National Taiwan University, Taipei, Taiwan
| | - Jing-Rong Jhuang
- Institute of Statistical Science, Academia Sinica, Taipei, Taiwan
| | - Chun-Ju Chiang
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
- Taiwan Cancer Registry, Taipei city, Taiwan
| | | | - Li-Ju Lin
- Health Promotion Administration, Ministry of Health and Welfare, Taipei, Taiwan
| | - Chao-Chun Wu
- Health Promotion Administration, Ministry of Health and Welfare, Taipei, Taiwan
| | - Wen-Chung Lee
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
- Taiwan Cancer Registry, Taipei city, Taiwan
- Institute of Health Data Analytics, College of Public Health, National Taiwan University, Taipei, Taiwan
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Huang E, Filograna K, Lockwood KK, Crossette J, Jenssen BP. Human Papillomavirus Vaccine Completion by 13: A Quality Improvement Initiative in a Large Primary Care Network. Acad Pediatr 2024; 24:293-301. [PMID: 37907128 DOI: 10.1016/j.acap.2023.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 10/18/2023] [Accepted: 10/24/2023] [Indexed: 11/02/2023]
Abstract
OBJECTIVE Fewer than 40% of U.S. children complete the human papillomavirus (HPV) vaccine series before their 13th birthday. In our large pediatric primary care network, HPV vaccine completion rate by age 13 was 30%. We hypothesized that a phased quality improvement (QI) initiative would increase rates of HPV vaccine completion by age 13 across our network. METHODS This QI initiative was conducted in a network of 30 practices located across two states, in urban and suburban settings, consisting of teaching and non-teaching clinics, and ranging in size from three to 50 providers per office. We used a phased approach incorporating multicomponent network-wide and iterative practice-specific interventions. Key interventions included: updating clinical decision support to default order HPV vaccine due at preventive visits starting at age nine instead of 11, data audit and feedback to providers and practices, encouraging use of a strong provider recommendation, and standing orders. RESULTS From April 2019 to October 2022, HPV vaccine completion by age 13 across our network increased from 30% to 55% and met criteria for special cause variation on statistical process control charts. A gap in median HPV vaccine completion by age 13 between patients with public insurance and patients with private or commercial insurance decreased from 9% to 1%. CONCLUSION A QI initiative was associated with a sustained increase in HPV vaccine series completion by age 13 and reduced variation in care across a large network of 30 primary care practices.
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Affiliation(s)
- Elena Huang
- Children's Hospital of Philadelphia, Primary Care (E Huang, K Filograna, KK Lockwood, J Crossette, and BP Jenssen), Philadelphia,Pa; Department of Pediatrics (E Huang, KK Lockwood, and BP Jenssen), University of Pennsylvania Perelman School of Medicine, Philadelphia,Pa.
| | - Kathleen Filograna
- Children's Hospital of Philadelphia, Primary Care (E Huang, K Filograna, KK Lockwood, J Crossette, and BP Jenssen), Philadelphia,Pa
| | - Katie K Lockwood
- Children's Hospital of Philadelphia, Primary Care (E Huang, K Filograna, KK Lockwood, J Crossette, and BP Jenssen), Philadelphia,Pa; Department of Pediatrics (E Huang, KK Lockwood, and BP Jenssen), University of Pennsylvania Perelman School of Medicine, Philadelphia,Pa
| | - Jonathan Crossette
- Children's Hospital of Philadelphia, Primary Care (E Huang, K Filograna, KK Lockwood, J Crossette, and BP Jenssen), Philadelphia,Pa
| | - Brian P Jenssen
- Children's Hospital of Philadelphia, Primary Care (E Huang, K Filograna, KK Lockwood, J Crossette, and BP Jenssen), Philadelphia,Pa; Department of Pediatrics (E Huang, KK Lockwood, and BP Jenssen), University of Pennsylvania Perelman School of Medicine, Philadelphia,Pa
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Berenson AB, Panicker G, Unger ER, Rupp RE, Kuo YF. Immunogenicity of 2 or 3 Doses of 9vHPV Vaccine in U.S. Female Individuals 15 to 26 Years of Age. NEJM Evid 2024; 3:EVIDoa2300194. [PMID: 38320488 DOI: 10.1056/evidoa2300194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
Immunogenicity of Two or Three Doses of 9vHPV VaccineThis noninferiority trial examined two versus three doses of 9-valent human papillomavirus (9vHPV) vaccine in individuals 15 to 26 years of age in the United States. In an unplanned interim analysis of female participants, two doses of 9vHPV vaccine appeared to elicit similar rates of seroconversion and antibody titers for each of the nine HPV genotypes to three doses at 1 month postvaccination.
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Affiliation(s)
- Abbey B Berenson
- Department of Obstetrics and Gynecology, The University of Texas Medical Branch, Galveston, TX
- Center for Interdisciplinary Research in Women's Health, The University of Texas Medical Branch, Galveston, TX
| | - Gitika Panicker
- Division of High-Consequence Pathogens and Pathology, National Center for Emerging and Zoonotic Infectious Diseases at the Centers for Disease Control and Prevention, Atlanta
| | - Elizabeth R Unger
- Division of High-Consequence Pathogens and Pathology, National Center for Emerging and Zoonotic Infectious Diseases at the Centers for Disease Control and Prevention, Atlanta
| | - Richard E Rupp
- Center for Interdisciplinary Research in Women's Health, The University of Texas Medical Branch, Galveston, TX
- Department of Pediatrics, The University of Texas Medical Branch, Galveston, TX
| | - Yong-Fang Kuo
- Center for Interdisciplinary Research in Women's Health, The University of Texas Medical Branch, Galveston, TX
- Department of Biostatistics & Data Science, The University of Texas Medical Branch, Galveston, TX
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Middeldorp M, Duijster JW, van de Kassteele J, van der Klis FR, de Melker HE. Immune response following a two-dose schedule of bivalent HPV vaccination among girls and boys. Front Immunol 2024; 15:1327770. [PMID: 38343547 PMCID: PMC10853341 DOI: 10.3389/fimmu.2024.1327770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 01/11/2024] [Indexed: 02/15/2024] Open
Abstract
Background This longitudinal cohort study describes the kinetics in antibody levels after two doses of the bivalent human papillomavirus (HPV) vaccine in girls (birth cohort 2001) vaccinated in the routine Dutch vaccination program at 12 years of age, up to 7.5 years post-vaccination. Also, the antibody response one month post-vaccination of the first cohort of boys (birth cohort 2012, vaccinated at 10 years of age) eligible for HPV vaccination in the Netherlands is presented. Method Blood samples and questionnaire data were collected of girls and boys. HPV type-specific antibody concentrations (LU/mL) against HPV16/18/31/33/45/52/58 were assessed using a validated virus-like particle (VLP) multiplex immunoassay. For girls, antibody decays over time were modelled using the modified power-law decay model and the exponential decay model. Results The Geometric Mean Concentrations (GMCs) remained higher for HPV16/18 than for HPV types 31, 33, 45, 52, and 58 among girls up to 7.5 years post-vaccination. The antibody levels of HPV16 and HPV18 reached plateau values of 482 and 159 LU/mL, respectively. Mathematical modelling showed that the half-life values of HPV16/18 were 2.4- to 4.5-fold higher compared with the half-life values of the other HPV types. Among boys (aged 10 years), the GMC for HPV16 was significantly higher than among girls one month post-vaccination (aged 12 years). Conclusion The GMCs of all HPV types declined over time, although the GMCs of HPV16/18 remained relatively high up to 7.5 years post-vaccination. The GMCs for HPV16/18 among boys were at least equally high as the GMCs among girls at one month post-vaccination. Further follow-up of the cohort of boys is needed to gain knowledge on long-term immune responses of young boys following bivalent HPV vaccination.
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Affiliation(s)
- Marit Middeldorp
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, Netherlands
- Department of Epidemiology and Data Science, Amsterdam University Medical Centre (UMC), Location VU University medical centre (VUmc), Amsterdam, Netherlands
| | - Janneke W. Duijster
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, Netherlands
| | - Jan van de Kassteele
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, Netherlands
| | - Fiona R.M. van der Klis
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, Netherlands
| | - Hester E. de Melker
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, Netherlands
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Moss CF, Wang R, Sao S, Chou B, Perin J, Lander ME, Thaker SM, Mann M, Coleman JS. Immunogenicity of 2-Dose HPV Vaccine Series for Postpartum Women: An Open-Label, Nonrandomized, Noninferiority Trial. JAMA Netw Open 2024; 7:e2352996. [PMID: 38285445 PMCID: PMC10825724 DOI: 10.1001/jamanetworkopen.2023.52996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 12/03/2023] [Indexed: 01/30/2024] Open
Abstract
Importance Postpartum human papillomavirus (HPV) vaccination is a promising strategy to increase HPV vaccination uptake in the US, particularly for reaching vaccine-naive women and those who lack health insurance beyond the pregnancy period. However, completion of the 3-dose vaccine regimen is challenging. Objective To evaluate the immunogenicity of a 2-dose postpartum HPV vaccination regimen (0 and 6 months) and assess whether it is noninferior to a 3-dose postpartum HPV vaccination regimen (0, 1-2, and 6 months) administered to historical controls. Design, Setting, and Participants A noninferiority, open-label, nonrandomized immunogenicity trial was conducted from August 4, 2020, to June 23, 2022, of postpartum patients aged 15 to 45 years who delivered at 2 hospitals in Baltimore, Maryland. Historical controls were adolescents and young women aged 16 to 26 years. Intervention Two doses of the nonavalent HPV vaccine administered 6 months apart. Main Outcomes and Measures The primary outcome was noninferiority (90% CI, lower bound >0.67) of the geometric mean titer (GMT) ratio for HPV-16 among postpartum women compared with historical controls. Secondary outcomes were noninferiority of GMT ratios for the other 8 HPV types and percentage seroconversion for each HPV type. As a noninferiority trial, the primary analysis used the per-protocol analysis. Results Of 225 enrolled participants, the mean (SD) age at baseline was 29.9 (6.8) years, and 171 (76.0%) were HPV-16 seronegative at baseline. Of these 171 participants, 129 (75.4%) received a second vaccine dose and completed the subsequent 4-week serologic measurements. Relative to historical controls, the HPV-16 GMT ratio was 2.29 (90% CI, 2.03-2.58). At month 7, HPV-16 GMT was higher after the 2-dose regimen (7213.1 mMU/mL [90% CI, 6245.0-8331.4 mMU/mL]) than among historic controls after the 3-dose regimen (3154.0 mMU/mL [90% CI, 2860.2-3478.0 mMU/mL]). Similarly, the lower bound of the 90% CI of the GMT ratio was above 1 for the 8 HPV types 6, 11, 18, 31, 33, 45, 52, and 58. A total of 118 of 134 women (88.1%) seroconverted for HPV-16 after the first dose; 4 weeks after the second dose, the seroconversion rate was 99% or greater for all HPV types. Conclusions and Relevance This study suggests that immunogenicity of a 2-dose HPV vaccination regimen given 6 months apart among postpartum women was noninferior to a 3-dose regimen among young historical controls. Most women seroconverted after the first dose of the 2-dose regimen. These results demonstrate that postpartum vaccination using a reduced schedule may be a promising strategy to increase HPV vaccine series completion. Trial Registration ClinicalTrials.gov Identifier: NCT04274153.
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Affiliation(s)
- Chailee F. Moss
- Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Runzhi Wang
- Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Saumya Sao
- Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Betty Chou
- Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Jamie Perin
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Megan E. Lander
- Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Sejal M. Thaker
- Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Melindia Mann
- Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Jenell S. Coleman
- Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, Maryland
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Palmer C, Dolk C, Sabale U, Wang W, Saxena K. Cost-effectiveness of nonavalent HPV vaccination in the Netherlands. Expert Rev Vaccines 2024; 23:312-323. [PMID: 38417025 DOI: 10.1080/14760584.2024.2322543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 02/20/2024] [Indexed: 03/01/2024]
Abstract
BACKGROUND A bivalent human papillomavirus vaccine (2vHPV) is currently used in the Netherlands; a nonavalent vaccine (9vHPV) is also licensed. RESEARCH DESIGN AND METHODS We compared the public health and economic benefits of 2vHPV- and 9vHPV-based vaccination strategies in the Netherlands over 100 years using a validated deterministic dynamic transmission metapopulation model. RESULTS Compared to 2vHPV, the 9vHPV strategy averted an additional 3,245 cases of and 825 deaths from 9vHPV-strain-attributable cancers, 4,247 cases of and 190 deaths from recurrent respiratory papillomatosis (RRP), and 1,009,637 cases of anogenital warts (AGWs), with an incremental cost-effectiveness ratio (ICER) of €4,975 per quality-adjusted life year (QALY) gained. The ICER increased in a scenario with increased HPV vaccination coverage rates and was relatively robust to one-way deterministic sensitivity analyses, with variation in the disease utility parameter having the most impact. When catch-up vaccination for individuals ≤26 years of age was added to the model, vaccinating with 9vHPV averted additional cancers and AGWs compared to 2vHPV vaccination. CONCLUSION Our analyses predict that transitioning from a 2vHPV- to a 9vHPV-based vaccination strategy would be cost-effective in the Netherlands.
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Affiliation(s)
- Cody Palmer
- Health Economic and Decision Sciences, Merck & Co, Inc, Rahway, NJ, USA
| | | | - Ugne Sabale
- Center for Observational and Real-World Evidence (CORE), MSD, Vilnius, Lithuania
| | - Wei Wang
- Center for Observational and Real-World Evidence (CORE), Merck & Co, Inc, Rahway, NJ, USA
| | - Kunal Saxena
- Center for Observational and Real-World Evidence (CORE), Merck & Co, Inc, Rahway, NJ, USA
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Saxena K, Kathe N, Sardana P, Yao L, Chen YT, Brewer NT. HPV vaccine initiation at 9 or 10 years of age and better series completion by age 13 among privately and publicly insured children in the US. Hum Vaccin Immunother 2023; 19:2161253. [PMID: 36631995 DOI: 10.1080/21645515.2022.2161253] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
The US Advisory Committee on Immunization Practice recommends routine human papillomavirus (HPV) vaccination at 11-12 years of age, but states that vaccination may be initiated as early as 9 years. Our primary goal was to assess whether initiating HPV vaccination at 9-10 years of age, compared to 11-12, was associated with a higher rate of series completion by 13 years of age, and to identify factors associated with series completion by age 13. The study used vaccine claims and other data from the IBM MarketScan Commercial Claims and Encounters (privately insured) and IBM MarketScan Multi-State Medicaid (publicly insured) databases. Participants were 9-12 years of age and initiated HPV vaccination between January 2006 and December 2018 (publicly insured) or February 2019 (privately insured). Among 100,117 privately insured individuals, those initiating the HPV vaccination series at 9-10 years of age had a significantly higher series completion rate by 13 years of age than did those initiating at 11-12 years of age (76.2% versus 48.1%; p < .001). The same pattern was observed for 115,863 publicly insured individuals (70.4% versus 40.0%; p < .001). Provider and health care plan type, female sex, race/ethnicity, and wellness checks or non-HPV vaccinations during the baseline period were significantly associated with series completion by 13 years of age. Proactive initiation of HPV vaccination at 9-10 years of age was associated with higher rates of series completion by 13 years of age. These findings can inform provider education and other interventions to encourage timely HPV vaccination series completion.
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Kahn BZ, Reiter PL, Kritikos KI, Gilkey MB, Queen TL, Brewer NT. Framing of national HPV vaccine recommendations and willingness to recommend at ages 9-10. Hum Vaccin Immunother 2023; 19:2172276. [PMID: 36749614 PMCID: PMC10012934 DOI: 10.1080/21645515.2023.2172276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 01/20/2023] [Indexed: 02/08/2023] Open
Abstract
Proactive HPV vaccination at age 9 better prevents infection and improves vaccine series completion. Because national organizations recommend starting the vaccine at different ages, we sought to understand the impact of these recommendation frames. In 2022, we surveyed 2,527 US clinical staff (45% physicians) who provide HPV vaccine for children. We randomized respondents to one of three frames based on HPV vaccine recommendations of national organizations or a no-recommendation control, and assessed willingness to recommend HPV vaccine for children ages 9-10. Respondents also reported perceived benefits of HPV vaccination at ages 9 or 12. Recommending HPV vaccination "at ages 11-12" led to lower willingness to vaccinate at ages 9-10 than control (37% vs. 54%, p < .05). Recommending vaccination "at ages 9-12" led to similar willingness as control. However, "starting at age 9" led to higher willingness than control (63% vs. 54%, p < .05). Results were similar across respondents' training, specialty, or years in practice, or their clinic's rurality or healthcare system membership. More common benefits of recommending at age 9 than 12 were avoiding the topic of sex (24% vs. 10%, OR = 2.78, 95%CI: 2.23, 3.48) and completing the vaccine series before age 13 (56% vs. 47%, OR = 1.44, 95%CI: 1.23, 1.68). Less common benefits for age 9 were having parents ready to talk about HPV vaccine and agreeing to vaccination (both p < .05). An effective way to encourage proactive HPV vaccination is to say that it starts at age 9. Aligning national recommendations to start at age 9 can promote timely vaccination.
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Affiliation(s)
- Benjamin Z Kahn
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
| | - Paul L Reiter
- Division of Health Behavior and Health Promotion, College of Public Health, The Ohio State University, Columbus, OH, USA
- James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Katherine I Kritikos
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - Melissa B Gilkey
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - Tara L Queen
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
| | - Noel T Brewer
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
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Zorn S, Darville-Sanders G, Vu T, Carter A, Treend K, Raunio C, Vasavada A. Multi-level quality improvement strategies to optimize HPV vaccination starting at the 9-year well child visit: Success stories from two private pediatric clinics. Hum Vaccin Immunother 2023; 19:2163807. [PMID: 36798976 PMCID: PMC10054168 DOI: 10.1080/21645515.2022.2163807] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
Abstract
HPV vaccination rates remain far below goal, leaving many adolescents unprotected against future HPV-related cancers. Starting HPV vaccine at age 9 may improve timely preteen vaccination. The "HPV Vax at 9" Quality Improvement intervention paired HPV vaccination with 9- and 10-year well child visits and was piloted at two pediatric clinics (n = 9 sites) in Washington between 2018 and 2022. Supporting interventions included standardized immunization schedule posters in exam rooms, electronic medical record supports, provider and staff training, strong provider recommendations, printed educational resources, and peer-to-peer champion coaching. Provider and clinic acceptance was high with HPV vaccine administration occurring at 68-86% of the 9- and 10-year well child visits. During the first year, HPV initiation rates at age 9-10 increased by 30% or more at each clinic. Sustained improvements in initiation and series completion were seen with completion at age 11-12 rising as much as 40% from 22 to 62%. Downward pressure of the COVID-19 pandemic on HPV vaccination rates was mitigated. Pairing HPV vaccine with 9- and 10-year well child visits, posting the standardized immunization schedule, and instituting EMR supports for HPV at 9 may be effective and sustainable strategies to simplify clinic workflows and increase timely HPV vaccination.
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Affiliation(s)
- Sherri Zorn
- Pediatrics Department, Optum Washington, Seattle, WA, USA
| | | | - Thuy Vu
- School of Public Health, University of Washington Health Promotion Research Center, Seattle, WA, USA
| | | | - Katie Treend
- Comprehensive Cancer Control Program, Washington State Department of Health, Tumwater, WA, USA
| | - Char Raunio
- Cancer Support Strategic Partnerships, American Cancer Society, Seattle, WA, USA
| | - Anjali Vasavada
- School of Public Health, University of Washington Health Promotion Research Center, Seattle, WA, USA
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Sharma H, Parekh S, Pujari P, Shewale S, Desai S, Bhatla N, Joshi S, Pimple S, Kawade A, Balasubramani L, Thomas A, Suri V, Lalwani S, Uday R, Kamath V, Mandal R, Rajeswar A, Peedicayil A, Poli UR, Banerjee D, Sankaranarayanan R, Basu P, Muwonge R, Gairola S, Dogar V, Rao H, Shaligram U. Immunogenicity and safety of a new quadrivalent HPV vaccine in girls and boys aged 9-14 years versus an established quadrivalent HPV vaccine in women aged 15-26 years in India: a randomised, active-controlled, multicentre, phase 2/3 trial. Lancet Oncol 2023; 24:1321-1333. [PMID: 37949086 DOI: 10.1016/s1470-2045(23)00480-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 09/21/2023] [Accepted: 09/21/2023] [Indexed: 11/12/2023]
Abstract
BACKGROUND To meet global cervical cancer elimination efforts, a wider range of affordable and accessible vaccines against human papillomavirus (HPV) are needed. We aimed to evaluate the immunogenicity and safety of a quadrivalent HPV vaccine (targeting HPV types 6, 11, 16, and 18), developed and manufactured by the Serum Institute of India (SIIPL). Here we report outcomes in the 9-14 years cohort. METHODS This randomised, active-controlled, phase 2/3 trial was conducted at 12 tertiary care hospitals across India. Healthy participants aged 9-14 years or 15-26 years with no history of HPV vaccination were eligible for enrolment. Female participants were randomly assigned (1:1) with an interactive web response system, by use of a central computer-generated schedule and block randomisation (block sizes of 2, 4, 6, and 8), to receive the SIIPL quadrivalent HPV vaccine (Cervavac; SIIPL, Pune, India) or the comparator quadrivalent HPV vaccine (Gardasil; Merck Sharp & Dohme, Harleem, the Netherlands). Participants, investigators, laboratory technicians, and sponsors were masked to treatment allocation of female participants. Male participants were given the SIIPL quadrivalent HPV vaccine in an open-label manner. Study vaccines were administered intramuscularly with a two-dose schedule (at day 0 and 6 months) in the cohort aged 9-14 years, and with a three-dose schedule (at day 0, month 2, and month 6) in the cohort aged 15-26-years. Immunogenicity was assessed 30 days after the last dose by use of multiplexed ELISA. The primary outcome was the non-inferiority of immune response in terms of the geometric mean titre (GMT) of antibodies against HPV types 6, 11, 16, and 18 generated by the SIIPL quadrivalent HPV vaccine in girls and boys (aged 9-14 years) compared with the GMT generated by the comparator quadrivalent HPV vaccine in women aged 15-26 years at month 7 in the modified per-protocol population (ie, all participants who received all doses of study vaccines per assigned treatment group and had both day 0 and 1-month immunogenicity measurements after the last dose following protocol-defined window periods with no major protocol deviations). Non-inferiority was established if the lower bound of the 98·75% CI of the GMT ratio was 0·67 or higher. The co-primary outcome of occurrence of solicited adverse events (within 7 days of each dose) and unsolicited adverse events (up to 30 days after the last dose) was assessed in all participants who were enrolled and received at least one dose of study vaccine. The trial is registered with the Clinical Trials Registry - India (CTRI/2018/06/014601), and long-term follow-up is ongoing. FINDINGS Between Sept 20, 2018, and Feb 9, 2021, 2341 individuals were screened, of whom 2307 eligible individuals were enrolled and vaccinated: 1107 (738 girls and 369 boys) in the cohort aged 9-14 years and 1200 (819 women and 381 men) in the cohort aged 15-26 years. No race or ethnicity data were collected. 350 girls and 349 boys in the SIIPL quadrivalent HPV vaccine group and 338 women in the comparator vaccine group were included in the modified per-protocol population for the primary endpoint analysis. The median follow-up for the analyses was 221 days (IQR 215-231) for girls and 222 days (217-230) for boys in the SIIPL quadrivalent HPV vaccine group, 223 days (216-232) for girls in the comparator vaccine group, and 222 days (216-230) for women in the comparator vaccine group. GMT ratios were non-inferior in girls and boys receiving the SIIPL quadrivalent HPV vaccine compared with women receiving the comparator vaccine: GMT ratios for girls were 1·97 (98·75% CI 1·67-2·32) for HPV type 6, 1·63 (1·38-1·91) for HPV type 11, 1·90 (1·60-2·25) for HPV type 16, and 2·16 (1·79-2·61) for HPV type 18. For boys the GMT ratios were 1·86 (1·57-2·21) for HPV type 6, 1·46 (1·23-1·73) for HPV type 11, 1·62 (1·36-1·94) for HPV type 16, and 1·80 (1·48-2·18) for HPV type 18. The safety population comprised all 1107 participants (369 girls and 369 boys in the SIIPL quadrivalent HPV vaccine group, and 369 girls in the comparator group). Solicited adverse events occurred in 176 (48%) of 369 girls and 124 (34%) of 369 boys in the SIIPL vaccine group and 179 (49%) of 369 girls in the comparator vaccine group. No grade 3-4 solicited adverse events occurred within 7 days of each dose. Unsolicited adverse events occurred in 143 (39%) girls and 147 (40%) boys in the SIIPL vaccine group, and 143 (39%) girls in the comparator vaccine group. The most common grade 3 unsolicited adverse event was dengue fever, in one (<1%) girl in the SIIPL vaccine group and three (1%) girls in the comparator group. There were no grade 4 or 5 adverse events. Serious adverse events occurred in three (1%) girls and three (1%) boys in the SIIPL vaccine group, and five (1%) girls in the comparator vaccine group. No vaccine-related serious adverse events were reported. There were no treatment-related deaths. INTERPRETATION We observed a non-inferior immune response with the SIIPL quadrivalent HPV vaccine in girls and boys aged 9-14 years and an acceptable safety profile compared with the comparator vaccine. These findings support extrapolation of efficacy from the comparator vaccine to the SIIPL quadrivalent HPV vaccine in the younger population. The availability of the SIIPL quadrivalent HPV vaccine could help meet the global demand for HPV vaccines, and boost coverage for both girls and boys globally. FUNDING Biotechnology Industry Research Assistance Council, Department of Biotechnology (DBT), Government of India, and Serum Institute of India.
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Affiliation(s)
| | | | | | | | | | - Neerja Bhatla
- All India Institute of Medical Sciences, New Delhi, India
| | | | - Sharmila Pimple
- Tata Memorial Hospital & Cancer Research Institute, Mumbai, India
| | | | | | | | - Vanita Suri
- Postgraduate Institute of Medical Education & Research, Chandigarh, India
| | - Sanjay Lalwani
- Bharati Vidyapeeth Medical College & Hospital, Pune, India
| | - Rajini Uday
- M S Ramaiah Medical College & Hospital, Bangalore, India
| | - Veena Kamath
- Kasturba Medical College and TMA Pai Hospital, Manipal, India
| | | | - A Rajeswar
- MNJ Institute of Oncology & Regional Cancer Centre, Hyderabad, India
| | | | - Usha Rani Poli
- MNJ Institute of Oncology & Regional Cancer Centre, Hyderabad, India
| | | | | | - Partha Basu
- International Agency for Research on Cancer, World Health Organization, Early Detection, Prevention and Infections Branch, Lyon, France
| | - Richard Muwonge
- International Agency for Research on Cancer, World Health Organization, Early Detection, Prevention and Infections Branch, Lyon, France
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Restrepo J, Herrera T, Samakoses R, Reina JC, Pitisuttithum P, Ulied A, Bekker LG, Moreira ED, Olsson SE, Block SL, Hammes LS, Laginha F, Ferenczy A, Kurman R, Ronnett BM, Stoler M, Bautista O, Gallagher NE, Salituro G, Ye M, Luxembourg A. Ten-Year Follow-up of 9-Valent Human Papillomavirus Vaccine: Immunogenicity, Effectiveness, and Safety. Pediatrics 2023; 152:e2022060993. [PMID: 37667847 DOI: 10.1542/peds.2022-060993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/27/2023] [Indexed: 09/06/2023] Open
Abstract
BACKGROUND AND OBJECTIVES The 9-valent human papillomavirus (9vHPV) vaccine Phase III immunogenicity study in 9- to 15-year-old boys and girls was extended to assess immunogenicity and effectiveness through 10 years after the last vaccine dose (NCT00943722). METHODS Boys (n = 301) and girls (n = 971) who received three 9vHPV vaccine doses in the base study (day 1, months 2 and 6) enrolled in the extension. Serum was collected through month 126 for antibody assessments by competitive Luminex immunoassay and immunoglobulin G-Luminex immunoassay. For effectiveness analysis starting at age 16 years, genital swabs were collected (to assess HPV DNA by polymerase chain reaction) and external genital examinations conducted every 6 months. Primary analyses were conducted in per-protocol populations. RESULTS Geometric mean antibody titers peaked around month 7, decreased sharply between months 7 and 12, then gradually through month 126. Seropositivity rates remained ≥81% by competitive Luminex immunoassay and ≥95% by immunoglobin G-Luminex immunoassay at month 126 for each 9vHPV vaccine type. After up to 11.0 (median 10.0) years of follow-up postdose 3, there were no cases of HPV6/11/16/18/31/33/45/52/58-related high-grade intraepithelial neoplasia or condyloma in males or females. Incidence rates of HPV6/11/16/18/31/33/45/52/58-related 6-month persistent infection in males and females were low (54.6 and 52.4 per 10000 person-years, respectively) and within ranges expected in vaccinated cohorts, based on previous human papillomavirus vaccine efficacy trials. CONCLUSIONS The 9vHPV vaccine demonstrated sustained immunogenicity and effectiveness through ∼10 years post 3 doses of 9vHPV vaccination of boys and girls aged 9 to 15 years.
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Affiliation(s)
- Jaime Restrepo
- Foundation Clinical Research Center CIC, Medellín, Colombia
| | | | | | - Julio C Reina
- Department of Pediatrics, Universidad del Valle and Centro Médico Imbanaco, Cali, Colombia
| | - Punnee Pitisuttithum
- Vaccine Trial Centre, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Angels Ulied
- Pediatrics Department, EBA Centelles, Centelles, Spain
| | - Linda-Gail Bekker
- Desmond Tutu HIV Centre, University of Cape Town, Cape Town, South Africa
| | - Edson D Moreira
- Associação Obras Sociais Irmã Dulce and Gonçalo Moniz Research Center, Oswaldo Cruz Foundation, Ministry of Health, Salvador, BA, Brazil
| | | | - Stan L Block
- Kentucky Pediatric and Adult Research Inc, Bardstown, Kentucky
| | | | | | - Alex Ferenczy
- Department of Pathology, McGill University, Montreal, Quebec, Canada
| | - Robert Kurman
- Department of Gynecology and Obstetrics and Department of Pathology, Johns Hopkins University, Baltimore, Maryland
| | - Brigitte M Ronnett
- Department of Gynecology and Obstetrics and Department of Pathology, Johns Hopkins University, Baltimore, Maryland
| | - Mark Stoler
- Department of Pathology, University of Virginia, Charlottesville, Virginia
| | | | | | | | - Min Ye
- Merck and Co, Inc., Rahway, New Jersey
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12
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Kemin L, Mengpei Z, Jing Z, Rutie Y. Different dose series of human papillomavirus vaccine in young females: a pair-wise meta-analysis and network meta-analysis from randomized controlled trials. Front Public Health 2023; 11:1152057. [PMID: 37808981 PMCID: PMC10552866 DOI: 10.3389/fpubh.2023.1152057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 08/29/2023] [Indexed: 10/10/2023] Open
Abstract
Objective To investigate the application value of different dose of HPV vaccine in young females. Data sources The following databases were searched: Cochrane Library, PubMed, Embase, Web of Science, SINOMED, and Wanfang Data, from the establishment of the database to August 1st, 2022. Study eligibility criteria The inclusion criterias were: healthy young women younger than 25 years old as the research object, randomized controlled study as the research type, and the efficacy and safety of single-dose, two-dose or three-dose HPV vaccines as the intervention measures and research endpoints. Study appraisal and synthesis methods Meta-analysis was performed to analyze the protective effects of single-dose, 2-dose and 3-dose HPV vaccine series on young females. Results A total of eight eligible studies involving 16 publications were included. There is no difference in the immunogenicity between the 2-dose and 3-dose series within 12 months after the last dose of HPV vaccine. However, 3-dose series was better than the 2-dose series, which performed better than the single-dose vaccine, after 12 months. With respect to the prevention of HPV16/18 infection or HPV31/33/45 infection, the single-dose vaccine worked better than 2-dose or 3-dose series. Conclusions The present study showed that the immunogenicity of low-dose HPV vaccine was significantly less, but it reduced the risk of high-risk HPV infection. The low-dose HPV vaccine series may not offer a preventive effect on cervical lesions, though it needs to be further confirmed by additional studies.
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Affiliation(s)
- Li Kemin
- The Department of Obstetrics and Gynecology, West China Second University Hospital of Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Zhang Mengpei
- The Department of Obstetrics and Gynecology, West China Second University Hospital of Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Zeng Jing
- The Department of Obstetrics and Gynecology, West China Second University Hospital of Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Yin Rutie
- The Department of Obstetrics and Gynecology, West China Second University Hospital of Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
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13
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Ellingson MK, Sheikha H, Nyhan K, Oliveira CR, Niccolai LM. Human papillomavirus vaccine effectiveness by age at vaccination: A systematic review. Hum Vaccin Immunother 2023; 19:2239085. [PMID: 37529935 PMCID: PMC10399474 DOI: 10.1080/21645515.2023.2239085] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 07/14/2023] [Indexed: 08/03/2023] Open
Abstract
Human papillomavirus (HPV) vaccines work by preventing infections prior to natural exposure. Thus, it is likely more effective at younger ages, and it is important to understand how effectiveness might be diminished when administered at older ages. We conducted a systematic review of HPV vaccine effectiveness studies published between 2007 and 2022 that included an analysis of effectiveness against vaccine-type HPV infections, anogenital warts, cervical abnormalities and cervical cancer by age at vaccine initiation or completion. Searching multiple databases, 21 studies were included and results were summarized descriptively. Seventeen studies found the highest vaccine effectiveness in the youngest age group. Vaccine effectiveness estimates for younger adolescents ages 9-14 years ranged from approximately 74% to 93% and from 12% to 90% for adolescents ages 15-18 years. These results demonstrate that the HPV vaccine is most effective against HPV-related disease outcomes when given at younger ages, emphasizing the importance of on-time vaccination.
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Affiliation(s)
- Mallory K. Ellingson
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, Yale University, New Haven, USA
| | - Hassan Sheikha
- Department of Pediatrics, Yale School of Medicine, Yale University, New Haven, USA
| | - Kate Nyhan
- Harvey Cushing/John Hay Whitney Medical Library, Yale University, New Haven, USA
- Department of Environmental Health Sciences, Yale School of Public Health, Yale University, New Haven, USA
| | - Carlos R. Oliveira
- Department of Pediatrics, Yale School of Medicine, Yale University, New Haven, USA
- Department of Biomedical Informatics and Data Science, Yale School of Medicine, Yale University, New Haven, USA
| | - Linda M. Niccolai
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, Yale University, New Haven, USA
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14
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Buonaguro L, Cavalluzzo B, Mauriello A, Ragone C, Tornesello AL, Buonaguro FM, Tornesello ML, Tagliamonte M. Microorganisms-derived antigens for preventive anti-cancer vaccines. Mol Aspects Med 2023; 92:101192. [PMID: 37295175 DOI: 10.1016/j.mam.2023.101192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/24/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023]
Abstract
Cancer prevention is one of the aim with the highest priority in order to reduce the burden of cancer diagnosis and treatment on individuals as well as on healthcare systems. To this aim, vaccines represent the most efficient primary cancer prevention strategy. Indeed, anti-cancer immunological memory elicited by preventive vaccines might promptly expand and prevent tumor from progressing. Antigens derived from microorganisms (MoAs), represent the obvious target for developing highly effective preventive vaccines for virus-induced cancers. In this respect, the drastic reduction in cancer incidence following HBV and HPV preventive vaccines are the paradigmatic example of such evidence. More recently, experimental evidences suggest that MoAs may represent a "natural" anti-cancer preventive vaccination or can be exploited for developing vaccines to prevent cancers presenting highly homologous tumor-associated antigens (TAAs) (e.g. molecular mimicry). The present review describes the different preventive anti-cancer vaccines based on antigens derived from pathogens at the different stages of development.
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Affiliation(s)
- Luigi Buonaguro
- Innovative Immunological Models Unit, Istituto Nazionale Tumori - IRCCS - "Fond G. Pascale", Naples, Italy
| | - Beatrice Cavalluzzo
- Innovative Immunological Models Unit, Istituto Nazionale Tumori - IRCCS - "Fond G. Pascale", Naples, Italy
| | - Angela Mauriello
- Innovative Immunological Models Unit, Istituto Nazionale Tumori - IRCCS - "Fond G. Pascale", Naples, Italy
| | - Concetta Ragone
- Innovative Immunological Models Unit, Istituto Nazionale Tumori - IRCCS - "Fond G. Pascale", Naples, Italy
| | - Anna Lucia Tornesello
- Molecular Biology and Viral Oncogenesis Unit, Istituto Nazionale Tumori - IRCCS - "Fond G. Pascale", Naples, Italy
| | - Franco M Buonaguro
- Molecular Biology and Viral Oncogenesis Unit, Istituto Nazionale Tumori - IRCCS - "Fond G. Pascale", Naples, Italy
| | - Maria Lina Tornesello
- Molecular Biology and Viral Oncogenesis Unit, Istituto Nazionale Tumori - IRCCS - "Fond G. Pascale", Naples, Italy
| | - Maria Tagliamonte
- Innovative Immunological Models Unit, Istituto Nazionale Tumori - IRCCS - "Fond G. Pascale", Naples, Italy.
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15
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Affiliation(s)
- Lauri E Markowitz
- From the Division of Viral Diseases, National Center for Immunization and Respiratory Diseases (L.E.M.), and the Division of High-Consequence Pathogens and Pathology, National Center for Emerging and Zoonotic Infectious Diseases (E.R.U.), Centers for Disease Control and Prevention, Atlanta
| | - Elizabeth R Unger
- From the Division of Viral Diseases, National Center for Immunization and Respiratory Diseases (L.E.M.), and the Division of High-Consequence Pathogens and Pathology, National Center for Emerging and Zoonotic Infectious Diseases (E.R.U.), Centers for Disease Control and Prevention, Atlanta
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16
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Baryakova TH, Pogostin BH, Langer R, McHugh KJ. Overcoming barriers to patient adherence: the case for developing innovative drug delivery systems. Nat Rev Drug Discov 2023; 22:387-409. [PMID: 36973491 PMCID: PMC10041531 DOI: 10.1038/s41573-023-00670-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/17/2023] [Indexed: 03/29/2023]
Abstract
Poor medication adherence is a pervasive issue with considerable health and socioeconomic consequences. Although the underlying reasons are generally understood, traditional intervention strategies rooted in patient-centric education and empowerment have proved to be prohibitively complex and/or ineffective. Formulating a pharmaceutical in a drug delivery system (DDS) is a promising alternative that can directly mitigate many common impediments to adherence, including frequent dosing, adverse effects and a delayed onset of action. Existing DDSs have already positively influenced patient acceptability and improved rates of adherence across various disease and intervention types. The next generation of systems have the potential to instate an even more radical paradigm shift by, for example, permitting oral delivery of biomacromolecules, allowing for autonomous dose regulation and enabling several doses to be mimicked with a single administration. Their success, however, is contingent on their ability to address the problems that have made DDSs unsuccessful in the past.
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Affiliation(s)
| | | | - Robert Langer
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Kevin J McHugh
- Department of Bioengineering, Rice University, Houston, TX, USA.
- Department of Chemistry, Rice University, Houston, TX, USA.
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17
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Nolan KM, Seaton B, Antonello J, Zhang Y, Cook L, Delfino K, Rubinstein LJ, Cheon K, Group T, Luxembourg A, Dubey S. Development and Validation of Two Optimized Multiplexed Serologic Assays for the 9-Valent Human Papillomavirus Vaccine Types. mSphere 2023;:e0096221. [PMID: 36926984 DOI: 10.1128/msphere.00962-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023] Open
Abstract
Two multiplex immunoassays are routinely used to assess antibody responses in clinical trials of the 9-valent human papillomavirus (9vHPV) vaccine. The HPV6/11/16/18/31/33/45/52/58 competitive Luminex immunoassay (HPV-9 cLIA) and HPV6/11/16/18/31/33/45/52/58 total immunoglobulin G Luminex immunoassay are used for measurements of immunogenicity. Following their initial validation in 2010, both assays were redeveloped, and several parameters were optimized, including the coating concentration of virus-like particles, type of Luminex microspheres, serum sample and reference standard diluent, reference standard starting dilution and titration series, and vendor and concentration of the phycoerythrin-labeled antibodies. Validation studies evaluated the assay performance parameters, including the intra-assay precision (repeatability), intermediate precision, linearity, relative accuracy, and limits of quantitation. In addition, since maintaining a link to the original assays that were used in trials supporting vaccine licensure is critical, the assays were formally bridged to the previous assay versions by using individual patient sera from a 9vHPV vaccine clinical trial (n = 150 day 1 [prevaccination] samples; n = 100 month 7 [1 month post-last vaccine dose] and n = 100 month 36 [30 months post-last vaccine dose; antibody persistence] samples). The results of the validation studies indicate that both optimized assays are accurate, specific, and precise over their respective quantifiable ranges. There was a strong linear association between the new and previous versions of both assays. Assay serostatus cutoffs for the redeveloped assays were established based on the bridging studies and, for the HPV-9 cLIA, further refined, based on additional data from HPV vaccine clinical studies so as to align the seropositivity rates between assay versions. IMPORTANCE Assay modernization is a key aspect of vaccine life cycle management. Thus, new, reoptimized versions of two 9vHPV immunoassays have been developed and validated for use in ongoing and future HPV vaccine clinical trials. These assays are suitable for use in high-throughput testing for HPV antibodies in serum samples. Bridging to previous versions of the assays allows for the continuous monitoring of immune responses across assay versions, including in immunogenicity studies that involve new populations as well as long-term follow-up studies.
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18
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Smajlovic A, Toth CD. Quality Improvement Project to Increase Human Papillomavirus Two-Dose Vaccine Series Completion by 13 Years in Pediatric Primary Care Clinics. J Adolesc Health 2023; 72:958-963. [PMID: 36925411 DOI: 10.1016/j.jadohealth.2023.01.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 01/06/2023] [Accepted: 01/09/2023] [Indexed: 03/18/2023]
Abstract
PURPOSE The human papillomavirus (HPV) causes genitourinary and oropharyngeal cancers. The HPV vaccine is safe and effective in preventing those diseases; however, vaccine series completion rates remain low in the United States. Our quality improvement (QI) project aimed to increase HPV-vaccination series completion rates to 70% from 2017 to 2020 for the 13-year patient population in an extensive academic pediatric primary care network that serves predominantly minority and Medicaid-insured children in Columbus, OH. METHODS The outcome measure was the percentage of 13-years Nationwide Children's Hospital Primary Care Network patients who completed the two-dose vaccine series by their 13th birthday. Four QI implemented interventions were utilized. Electronic medical records alert informed providers when the HPV vaccines are due. We studied monthly data for the network and for individual clinics using statistical process control, displaying data on a control chart. We followed two process measures, captured opportunity rate, and the number of HPV vaccines given. RESULTS We substantially increased HPV-vaccination series completion rates overall in the 13-year teen population from 27% to 65%, and three clinics reached the 70% goal for at least one quarter. Latino children had the highest completion rate of 80% and White children had the lowest completion rate at 64%. DISCUSSION Our QI project used four measures to improve HPV-vaccination series completion rates in the 13-year patient population that serves minority and low-income teens predominantly. Further QI studies are needed to improve HPV vaccine completion rates in teens.
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Affiliation(s)
- Amina Smajlovic
- Center for Clinical Excellence, Nationwide Children's Hospital, Columbus, Ohio; Division of Primary Care Pediatrics, Department of Pediatrics, The Ohio State University College of Medicine, Columbus, Ohio.
| | - Christina D Toth
- Center for Clinical Excellence, Nationwide Children's Hospital, Columbus, Ohio
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19
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Houser KV, Happe M, Bean R, Coates EE. Vaccines. Clin Immunol 2023. [DOI: 10.1016/b978-0-7020-8165-1.00087-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
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Abstract
There is a high burden of human papillomavirus (HPV) associated cancers in low- and middle-income countries (LMICs). Reducing the recommended dosing schedule from two doses to one makes the vaccine schedule logistically simpler and lowers the cost. This could make the distribution of the current vaccine supply more equitable and lead to the protection of more people. However, the clinical trials studying the efficacy of a single-dose schedule have not yet delivered final results. Against this background, the question is whether a single-dose HPV vaccine recommendation is appropriate now, and if so, what are the ethical considerations of such a recommendation? We developed three ethical recommendations: (1) adopt a holistic view of evidence to justify policy decisions; (2) prioritize the reduction in global disparities in decision-making at all levels; and (3) be transparent in the reporting of how key stakeholder interests have shaped the collection and interpretation of the evidence, and ultimate decisions. The complex discussion regarding the HPV single-dose vaccine schedule highlights the need for in-depth engagement globally to improve our understanding of country-specific contexts, and how those contexts influence decisions regarding the HPV vaccine single-dose recommendation.
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Affiliation(s)
- Ruha Shadab
- Yale Institute for Global Health, New Haven, CT, USA
| | - James V. Lavery
- Hubert Department of Global Health, Rollins School of Public Health and Center for Ethics, Emory University, Atlanta, GA, USA
| | - SarahAnn M. McFadden
- Yale Institute for Global Health, New Haven, CT, USA
- Department of Internal Medicine, Infectious Disease, Yale School of Medicine, New Haven, CT, USA
- CONTACT SarahAnn M. McFadden Yale Institute for Global Health, 1 Church St, Ste 340, New Haven, CT06510
| | - Jad A. Elharake
- Yale Institute for Global Health, New Haven, CT, USA
- Department of Health Policy and Management, Yale School of Public Health, New Haven, CT, USA
| | - Fauzia Malik
- Yale Institute for Global Health, New Haven, CT, USA
- Department of Health Policy and Management, Yale School of Public Health, New Haven, CT, USA
| | - Saad B. Omer
- Yale Institute for Global Health, New Haven, CT, USA
- Department of Internal Medicine, Infectious Disease, Yale School of Medicine, New Haven, CT, USA
- Yale School of Nursing, Orange, CT, USA
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, USA
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Garland SM, Anagani M, Bhatla N, Chatterjee S, Lalwani S, Ross C, Group T, Lin J, Luxembourg A, Walia A, Tu Y. Immunogenicity and safety of quadrivalent and 9-valent human papillomavirus vaccines in Indian clinical trial participants. Hum Vaccin Immunother 2022; 18:2105067. [PMID: 35997582 DOI: 10.1080/21645515.2022.2105067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The quadrivalent human papillomavirus (qHPV; HPV6/11/16/18) and 9-valent HPV (9vHPV; HPV6/11/16/18/31/33/45/52/58) vaccines have demonstrated efficacy, immunogenicity, and safety in international clinical trials. We report outcomes from three completed clinical trials in India: a single-arm study (V501-029 [NCT00380367]) in Indian girls (aged 9-15 years; N = 110) evaluating qHPV vaccine immunogenicity and safety; a subgroup analysis (n = 225) of Indian girls/boys (9-15 years) and women (16-26 years) from a global study (V503-002 [NCT00943722]) evaluating 9vHPV vaccine immunogenicity and safety; and a qHPV vaccine post-marketing safety surveillance study (V501-125) in Indian females (aged 9-45 years; N = 188) vaccinated during routine care. In V501-029 and V503-002, HPV vaccines were administered as 3 doses (Day 1, Month 2, Month 6). Serum HPV antibodies were evaluated by competitive Luminex immunoassays at Day 1 and Month 7 (both studies) and Months 12, 24, and 36 (V503-002 only). Adverse events (AEs) were collected by Vaccination Report Card. In V501-125, participants were actively surveilled for serious AEs (SAEs) within 30 days post-qHPV vaccination. In per-protocol analyses, qHPV and 9vHPV vaccines induced robust anti-HPV6/11/16/18 (V501-029) and HPV6/11/16/18/31/33/45/52/58 (V503-002) responses, respectively; ≥97% of participants seroconverted at Month 7 for each vaccine HPV type in both studies, and antibody responses persisted through 36 months in V503-002. The most common AEs were injection-site-associated. Most AEs were mild/moderate; no deaths, vaccine-related SAEs, or discontinuations due to AEs were reported. In V501-125, no SAE was reported. Overall, the qHPV and 9vHPV vaccines elicited robust antibody responses and were generally well tolerated in Indian participants.
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Affiliation(s)
- Suzanne M Garland
- Department of Obstetrics and Gynaecology, The University of Melbourne, Parkville, Victoria, Australia.,Infection and Immunity, Murdoch Children's Research Institute, Parkville, Victoria, Australia.,Centre for Women's Infectious Diseases Research, The Royal Women's Hospital, Parkville, Victoria, Australia
| | - Manjula Anagani
- Woman and Child Institute, CARE Super Specialty Hospital & Transplant Centre, Hyderabad, India
| | - Neerja Bhatla
- Department of Obstetrics and Gynaecology, All India Institute of Medical Sciences, New Delhi, India
| | - Sukanta Chatterjee
- Department of Pediatrics, KPC Medical College & Hospital, Kolkata, India
| | | | - Cecil Ross
- Department of Chest Medicine & Hematology, St. John's Medical College Hospital, Bangalore, India
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22
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Rodriguez AM, Do TQN, Chen L, Schmeler KM, Montealegre JR, Kuo YF. Human papillomavirus vaccinations at recommended ages: How a middle school-based educational and vaccination program increased uptake in the Rio Grande Valley. Hum Vaccin Immunother 2022; 18:2133315. [PMID: 36252275 DOI: 10.1080/21645515.2022.2133315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Human papillomavirus (HPV) vaccination is recommended for U.S. adolescents at ages 11-12 requiring two or three doses depending on if the vaccine series started before age 15. The objective was to compare HPV vaccination rates among medically underserved, economically disadvantaged, students in rural middle school districts (Rio Grande Valley [RGV], Texas) by age of initiation (≤ age 11 years vs. age 12 years and older). This quasi-experimental study included 1,766 students (884 females; 882 males) who received at least one HPV vaccine dose through our school-based vaccination program between 08/2016-06/2022. Summary statistics were stratified by age at initiation and gender. The overall HPV up-to-date (UTD) rate was 59.7% (95% Confidence Interval: 57.4-62.0%). The median age at HPV UTD (range) was 12 years (9-19) and median interval between HPV vaccine doses (range) was 316 days (150-2,855). Most students received the HPV vaccine bundled with other vaccinations (72.4%, 1,279/1,766). There was a higher HPV UTD rate among students who initiated the HPV vaccine on or before age 11 than those who initiated on or after age 12 (73.6% versus 45.1%, respectively). The median age of HPV UTD was age 12 for those initiating on or before 11 years versus age 13 for those initiating on or after 12 years of age. Initiating the HPV vaccine at age ≤11 years increased completion of the HPV vaccine series. Improving HPV vaccine coverage and introduction of pan-gender vaccination programs will significantly decrease HPV-related diseases in the RGV.
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Affiliation(s)
- Ana M Rodriguez
- Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, TX, USA
| | - Thuy Quynh N Do
- Department of Preventive Medicine and Population Health, University of Texas Medical Branch, Galveston, TX, USA
| | - Lu Chen
- Office of Biostatistics, Preventive Medicine and Population Health, University of Texas Medical Branch, Galveston, TX, USA
| | - Kathleen M Schmeler
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jane R Montealegre
- School of Health Professions, Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, USA
| | - Yong-Fang Kuo
- Office of Biostatistics, Preventive Medicine and Population Health, University of Texas Medical Branch, Galveston, TX, USA
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23
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Ujiie M. Resumption of active recommendation of the human papillomavirus vaccine in Japan and future challenges for the National Immunization Program. Hum Vaccin Immunother 2022; 18:2090777. [PMID: 35767827 DOI: 10.1080/21645515.2022.2090777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Japan's immunization program resumed proactively recommending the use of the human papillomavirus (HPV) vaccine nationwide in April 2022, after suspending this recommendation in June 2013. The promotion of catch-up vaccinations is an urgent issue to reduce the increase in cervical cancer and other cancers caused by low vaccination rates. In addition, the National Immunization Program still has issues to be considered, such as the adoption of the 9-valent vaccine, establishment of an appropriate number of vaccinations according to age, and routine immunization of males. There is a history of eliminating the use of the measles, mumps, and rubella vaccine and the mouse brain-derived, purified inactivated Japanese encephalitis vaccine, as well as suspending the HPV vaccine recommendation in Japan. These decisions have led to the current preventable infectious disease burden. In order to make the right policy decisions based on science-based assessments, it is necessary to establish a safety assessment platform to evaluate the causal relationship between vaccines and adverse events following immunization. Information technology, which has been promoted with the coronavirus disease 2019 vaccine in the current pandemic, may assist in providing more detailed vaccine safety evaluations for other vaccines.
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Affiliation(s)
- Mugen Ujiie
- Vaccination Support Center, National Center for Global Health and Medicine, Tokyo, Japan
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24
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Akhatova A, Azizan A, Atageldiyeva K, Ashimkhanova A, Marat A, Iztleuov Y, Suleimenova A, Shamkeeva S, Aimagambetova G. Prophylactic Human Papillomavirus Vaccination: From the Origin to the Current State. Vaccines (Basel) 2022; 10:1912. [PMID: 36423008 PMCID: PMC9696339 DOI: 10.3390/vaccines10111912] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/09/2022] [Accepted: 11/09/2022] [Indexed: 07/30/2023] Open
Abstract
Immunization is the most successful method in preventing and controlling infectious diseases, which has helped saving millions of lives worldwide. The discovery of the human papillomavirus (HPV) infection being associated with a variety of benign conditions and cancers has driven the development of prophylactic HPV vaccines. Currently, four HPV vaccines are available on the pharmaceutical market: Cervarix, Gardasil, Gardasil-9, and the recently developed Cecolin. Multiple studies have proven the HPV vaccines' safety and efficacy in preventing HPV-related diseases. Since 2006, when the first HPV vaccine was approved, more than 100 World Health Organization member countries reported the implementation of HPV immunization. However, HPV vaccination dread, concerns about its safety, and associated adverse outcomes have a significant impact on the HPV vaccine implementation campaigns all over the world. Many developed countries have successfully implemented HPV immunization and achieved tremendous progress in preventing HPV-related conditions. However, there are still many countries worldwide which have not created, or have not yet implemented, HPV vaccination campaigns, or have failed due to deficient realization plans associated with establishing successful HPV vaccination programs. Lack of proper HPV information campaigns, negative media reflection, and numerous myths and fake information have led to HPV vaccine rejection in many states. Thus, context-specific health educational interventions on HPV vaccination safety, effectiveness, and benefits are important to increase the vaccines' acceptance for efficacious prevention of HPV-associated conditions.
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Affiliation(s)
- Ayazhan Akhatova
- School of Medicine, Nazarbayev University, Astana 010000, Kazakhstan
| | - Azliyati Azizan
- Department of Basic Sciences, College of Osteopathic Medicine, Touro University, Henderson, NV 89014, USA
| | - Kuralay Atageldiyeva
- Department of Medicine, School of Medicine, Nazarbayev University, Astana 010000, Kazakhstan
- Clinical Academic Department of Internal Medicine, CF University Medical Center, Astana 10000, Kazakhstan
| | - Aiymkul Ashimkhanova
- Department of Medicine, School of Medicine, Nazarbayev University, Astana 010000, Kazakhstan
| | - Aizada Marat
- Department of Obstetrics and Gynecology #1, NJSC “Astana Medical University”, Astana 010000, Kazakhstan
| | - Yerbolat Iztleuov
- Medical Center, Marat Ospanov West-Kazakhstan Medical University, Aktobe 030000, Kazakhstan
| | - Assem Suleimenova
- Kazakh Institute of Oncology and Radiology, Almaty 050000, Kazakhstan
| | - Saikal Shamkeeva
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, Leipzig University Hospital, 04103 Leipzig, Germany
| | - Gulzhanat Aimagambetova
- Department of Biomedical Sciences, School of Medicine, Nazarbayev University, Astana 010000, Kazakhstan
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25
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Qian C, Yang Y, Xu Q, Wang Z, Chen J, Chi X, Yu M, Gao F, Xu Y, Lu Y, Sun H, Shen J, Wang D, Zhou L, Li T, Wang Y, Zheng Q, Yu H, Zhang J, Gu Y, Xia N, Li S. Characterization of an Escherichia coli-derived triple-type chimeric vaccine against human papillomavirus types 39, 68 and 70. NPJ Vaccines 2022; 7:134. [PMID: 36316367 PMCID: PMC9622684 DOI: 10.1038/s41541-022-00557-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 10/13/2022] [Indexed: 11/22/2022] Open
Abstract
In vaccinology, a potent immunogen has two prerequisite attributes-antigenicity and immunogenicity. We have rational designed a triple-type HPV vaccine against HPV58, -33 and -52 covered in Gardasil 9 based on the sequence homology and similar surface loop structure of L1 protein, which is related to cross-type antigenicity. Here, we design another triple-type vaccine against non-vaccine types HPV39, -68 and -70 by immunogenicity optimization considering type specific immunodominant epitopes located in separate region for different types. First, we optimized the expression of wild-type HPV39, -68 and -70 L1-only virus-like particles (VLPs) in E. coli through N-terminal truncation of HPV L1 proteins and non-fusion soluble expression. Second, based on genetic relationships and an L1 homologous loop-swapping rationale, we constructed several triple-type chimeric VLPs for HPV39, -68 and -70, and obtained the lead candidate named H39-68FG-70DE by the immunogenicity optimization using reactivity profile of a panel type-specific monoclonal antibodies. Through comprehensive characterization using various biochemical, VLP-based analyses and immune assays, we show that H39-68FG-70DE assumes similar particulate properties as that of its parental VLPs, along with comparable neutralization immunogenicity for all three HPV types. Overall, this study shows the promise and translatability of an HPV39/68/70 triple-type vaccine, and the possibility of expanding the type-coverage of current HPV vaccines. Our study further expanded the essential criteria on the rational design of a cross-type vaccine, i.e. separate sites with inter-type similar sequence and structure as well as type-specific immunodominant epitope to be clustered together.
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Affiliation(s)
- Ciying Qian
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, School of Public Health, Xiamen University, Xiamen, 361102 China ,grid.12955.3a0000 0001 2264 7233National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, 361102 China
| | - Yurou Yang
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, School of Public Health, Xiamen University, Xiamen, 361102 China ,grid.12955.3a0000 0001 2264 7233National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, 361102 China
| | - Qin Xu
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, School of Public Health, Xiamen University, Xiamen, 361102 China ,grid.12955.3a0000 0001 2264 7233National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, 361102 China
| | - Zhiping Wang
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, School of Public Health, Xiamen University, Xiamen, 361102 China ,grid.12955.3a0000 0001 2264 7233National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, 361102 China
| | - Jie Chen
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, School of Public Health, Xiamen University, Xiamen, 361102 China ,grid.12955.3a0000 0001 2264 7233National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, 361102 China
| | - Xin Chi
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, School of Public Health, Xiamen University, Xiamen, 361102 China ,grid.12955.3a0000 0001 2264 7233National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, 361102 China
| | - Miao Yu
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, School of Public Health, Xiamen University, Xiamen, 361102 China ,grid.12955.3a0000 0001 2264 7233National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, 361102 China
| | - Fei Gao
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, School of Public Health, Xiamen University, Xiamen, 361102 China ,grid.12955.3a0000 0001 2264 7233National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, 361102 China
| | - Yujie Xu
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, School of Public Health, Xiamen University, Xiamen, 361102 China ,grid.12955.3a0000 0001 2264 7233National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, 361102 China
| | - Yihan Lu
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, School of Public Health, Xiamen University, Xiamen, 361102 China ,grid.12955.3a0000 0001 2264 7233National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, 361102 China
| | - Hui Sun
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, School of Public Health, Xiamen University, Xiamen, 361102 China ,grid.12955.3a0000 0001 2264 7233National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, 361102 China
| | - Jingjia Shen
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, School of Public Health, Xiamen University, Xiamen, 361102 China ,grid.12955.3a0000 0001 2264 7233National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, 361102 China
| | - Daning Wang
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, School of Public Health, Xiamen University, Xiamen, 361102 China ,grid.12955.3a0000 0001 2264 7233National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, 361102 China
| | - Lizhi Zhou
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, School of Public Health, Xiamen University, Xiamen, 361102 China ,grid.12955.3a0000 0001 2264 7233National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, 361102 China
| | - Tingting Li
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, School of Public Health, Xiamen University, Xiamen, 361102 China ,grid.12955.3a0000 0001 2264 7233National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, 361102 China
| | - Yingbin Wang
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, School of Public Health, Xiamen University, Xiamen, 361102 China ,grid.12955.3a0000 0001 2264 7233National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, 361102 China
| | - Qingbing Zheng
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, School of Public Health, Xiamen University, Xiamen, 361102 China ,grid.12955.3a0000 0001 2264 7233National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, 361102 China
| | - Hai Yu
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, School of Public Health, Xiamen University, Xiamen, 361102 China ,grid.12955.3a0000 0001 2264 7233National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, 361102 China
| | - Jun Zhang
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, School of Public Health, Xiamen University, Xiamen, 361102 China ,grid.12955.3a0000 0001 2264 7233National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, 361102 China
| | - Ying Gu
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, School of Public Health, Xiamen University, Xiamen, 361102 China ,grid.12955.3a0000 0001 2264 7233National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, 361102 China
| | - Ningshao Xia
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, School of Public Health, Xiamen University, Xiamen, 361102 China ,grid.12955.3a0000 0001 2264 7233National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, 361102 China
| | - Shaowei Li
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, School of Public Health, Xiamen University, Xiamen, 361102 China ,grid.12955.3a0000 0001 2264 7233National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, 361102 China
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26
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Palmer M, Katanoda K, Saito E, Acuti Martellucci C, Tanaka S, Ikeda S, Sakamoto H, Machelek D, Ml Brotherton J, Hocking JS. Genotype prevalence and age distribution of human papillomavirus from infection to cervical cancer in Japanese women: A systematic review and meta-analysis. Vaccine 2022; 40:5971-5996. [PMID: 36085257 DOI: 10.1016/j.vaccine.2022.07.052] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 07/31/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND National HPV vaccination coverage in Japan is less than one percent of the eligible population and cervical cancer incidence and mortality are increasing. This systematic review and meta-analysis aimed to provide a comprehensive estimate of HPV genotype prevalence for Japan. METHODS English and Japanese databases were searched to March 2021 for research reporting HPV genotypes in cytology and histology samples from Japanese women. Summary estimates were calculated by disease stage from cytology only assessment - Normal, ASCUS, LSIL, HSIL and from histological assessment - CIN1, CIN2, CIN3/AIS, ICC (ICC-SCC, and ICC-ADC), and other. A random-effects meta-analysis was used to calculate summary prevalence estimates of any-HPV, high-risk (HR) and low-risk (LR) vaccine types, and vaccine genotypes (bivalent, quadrivalent, or nonavalent). This study was registered with PROSPERO: CRD42018117596. RESULTS A total of 57759 women with normal cytology, 1766 ASCUS, 3764 LSIL, 2017 HSIL, 3130 CIN1, 1219 CIN2, 869 CIN3/AIS, and 4306 ICC (which included 1032 ICC-SCC, and 638 ICC-ADC) were tested for HPV. The summary estimate of any-HPV genotype in women with normal cytology was 15·6% (95% CI: 12·3-19·4) and in invasive cervical cancer (ICC) was 85·6% (80·7-89·8). The prevalence of HR-HPV was 86·0% (95% CI: 73·9-94·9) for cytological cases of HSIL, 76·9% (52·1-94·7) for histological cases of CIN3/AIS, and 75·7% (68·0-82·6) for ICC. In women with ICC, the summary prevalence of bivalent vaccine genotypes was 58·5% (95% CI: 52·1-64·9), for quadrivalent genotypes was 58·6% (52·2-64·9) and for nonavalent genotypes was 71·5% (64·9-77·6), and of ICC cases that were HPV positive over 90% of infections are nonavalent vaccine preventable. There was considerable heterogeneity in all HPV summary estimates and for ICC, this heterogeneity was not explained by variability in study design, sample type, HPV assay type, or HPV DNA detection method, although studies published in the 1990s had lower prevalence estimates of any-HPV and HR HPV genotypes. INTERPRETATIONS HPV prevalence is high among Japanese women. The nonavalent vaccine is likely to have the greatest impact on reducing cervical cancer incidence and mortality in Japan.
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Affiliation(s)
- Matthew Palmer
- Melbourne School of Population and Global Health, The University of Melbourne, Melbourne Australia; Division of Surveillance and Policy Evaluation, National Cancer Center Institute for Cancer Control, Tokyo, Japan.
| | - Kota Katanoda
- Division of Surveillance and Policy Evaluation, National Cancer Center Institute for Cancer Control, Tokyo, Japan
| | - Eiko Saito
- Institute for Global Health Policy Research, National Center for Global Health Medicine, Tokyo, Japan
| | | | - Shiori Tanaka
- Department of Global Health Policy, Graduate School of Medicine, The University of Teokyo, Tokyo, Japan; Division of Prevention, Center for Public Health Sciences, National Cancer Center, Japan
| | - Sayaka Ikeda
- Division of Surveillance and Policy Evaluation, National Cancer Center Institute for Cancer Control, Tokyo, Japan
| | - Haruka Sakamoto
- Department of Global Health Policy, Graduate School of Medicine, The University of Teokyo, Tokyo, Japan
| | | | - Julia Ml Brotherton
- Melbourne School of Population and Global Health, The University of Melbourne, Melbourne Australia; Australian Centre for the Prevention of Cervical Cancer, Carlton, Australia
| | - Jane S Hocking
- Melbourne School of Population and Global Health, The University of Melbourne, Melbourne Australia
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27
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Markowitz LE, Drolet M, Lewis RM, Lemieux-Mellouki P, Pérez N, Jit M, Brotherton JM, Ogilvie G, Kreimer AR, Brisson M. Human papillomavirus vaccine effectiveness by number of doses: Updated systematic review of data from national immunization programs. Vaccine 2022; 40:5413-5432. [PMID: 35965239 PMCID: PMC9768820 DOI: 10.1016/j.vaccine.2022.06.065] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 06/03/2022] [Accepted: 06/08/2022] [Indexed: 11/21/2022]
Abstract
BACKGROUND Human papillomavirus (HPV) vaccines were first licensed as a three-dose series. Two doses are now widely recommended in some age groups; there are data suggesting high efficacy with one dose. We updated a systematic literature review of HPV vaccine effectiveness by number of doses in observational studies. METHODS We searched Medline and Embase databases from January 1, 2007, through September 29, 2021. Data were extracted and summarized in a narrative synthesis. We also conducted quality assessments for bias due to selection, information, and confounding. RESULTS Overall, 35 studies were included; all except one were conducted within the context of a recommended three-dose schedule. Evaluations were in countries that used bivalent HPV vaccine (seven), quadrivalent HPV vaccine (27) or both (one). Nine evaluated effectiveness against HPV infection, ten anogenital warts, and 16 cervical abnormalities. All studies were judged to have moderate or serious risk of bias. The biases rated as serious would likely result in lower effectiveness with fewer doses. Investigators attempted to control for or stratify by potentially important variables, such as age at vaccination. Eight studies evaluated impact of buffer periods (lag time) for case counting and 10 evaluated different intervals between doses for two-dose vaccine recipients. Studies that stratified by vaccination age found higher effectiveness with younger age at vaccination, although differences were not all formally tested. Most studies found highest estimates of effectiveness with three doses; significant effectiveness was found among 28/29 studies that evaluated three doses, 19/29 that evaluated two doses, and 18/30 that evaluated one dose. Some studies that adjusted or stratified analyses by age at vaccination found similar effectiveness with three, two and one doses. CONCLUSION Observational studies of HPV vaccine effectiveness have many biases. Studies examining persons vaccinated prior to sexual activity and using methods to reduce sources of bias are needed for valid effectiveness estimates.
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Affiliation(s)
- Lauri E Markowitz
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA.
| | - Mélanie Drolet
- Centre de recherche du CHU de Québec - Université Laval, Axe santé des populations et pratiques optimales en santé, Québec, Canada
| | - Rayleen M Lewis
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA; Synergy America, Inc, Duluth, GA, USA
| | - Philippe Lemieux-Mellouki
- Centre de recherche du CHU de Québec - Université Laval, Axe santé des populations et pratiques optimales en santé, Québec, Canada
| | - Norma Pérez
- Centre de recherche du CHU de Québec - Université Laval, Axe santé des populations et pratiques optimales en santé, Québec, Canada
| | - Mark Jit
- London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Julia M Brotherton
- Population Health, VCS Foundation, East Melbourne, Victoria, Australia; Melbourne School of Population and Global Health, University of Melbourne, Victoria, Australia
| | - Gina Ogilvie
- University of British Columbia, British Columbia, Canada
| | - Aimée R Kreimer
- National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Marc Brisson
- Centre de recherche du CHU de Québec - Université Laval, Axe santé des populations et pratiques optimales en santé, Québec, Canada; Département de médecine sociale et préventive, Université Laval, Québec, Canada; Department of Infectious Disease Epidemiology, Imperial College, London, United Kingdom
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28
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Donkoh ET, Dassah ET, Owusu-Dabo E. Optimization of a protocol for the evaluation of antibody responses to human papillomavirus (HPV) vaccination in low-resource settings. BMC Womens Health 2022; 22:234. [PMID: 35710373 PMCID: PMC9204889 DOI: 10.1186/s12905-022-01821-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 06/06/2022] [Indexed: 11/25/2022] Open
Abstract
Introduction Available human papillomavirus (HPV) vaccines could have an important primary role in cervical cancer prevention once their long-term immunogenicity and safety are evaluated at the population level. The aim of this study was to optimize an assay to be used in evaluating the long-term durability of HPV vaccine response following a pilot vaccination of adolescent girls in Ghana. Methods A rapid, high-throughput, indirect enzyme-linked immunosorbent assay (ELISA) was optimized for the detection and quantitation of anti-HPV L1 (late expression protein: types 6, 11, 16 and 18) immunoglobulin G (IgG) in human serum (n = 89). The utility of the assay was demonstrated using serum collected from a cohort of pre-adolescent girls (n = 49) previously vaccinated with a quadrivalent vaccine and non-immune serum obtained from age-matched controls (n = 40). Results The assay showed good discrimination of antibody levels between cases and control sera: seroprevalence of anti-HPV IgG antibodies was significantly higher among vaccinated than unvaccinated girls for both HPV-16 (63.3% vs. 12.5%; p < 0.001) and HPV-18 (34.7% vs. 20.0%; p = 0.042), respectively. Thirty-six months after receiving the third dose of vaccine, significantly higher mean anti-HPV-16 (0.618 vs. 0.145), anti-HPV-18 (0.323 vs. 0.309), and anti-HPV-6 (1.371 vs. 0.981) antibody levels were measured, compared to unvaccinated girls (all p < 0.05). A correlation between optical density and antibody activity indicated assay sensitivity to increasing levels of antibody activity. Conclusion We have successfully optimized and implemented a robust and sensitive assay for the evaluation of antibody responses among immunized adolescent girls for monitoring future large-scale HPV vaccination studies in low-income settings. Our results demonstrated greater immunoglobulin G antibody activity within serum drawn from adolescent girls immunized 36 months prior. Supplementary Information The online version contains supplementary material available at 10.1186/s12905-022-01821-y.
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Affiliation(s)
- Emmanuel Timmy Donkoh
- Center for Research in Applied Biology, University of Energy and Natural Resources, Sunyani, Ghana.
| | - Edward Tieru Dassah
- Department of Population, Family and Reproductive Health, School of Public Health, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Ellis Owusu-Dabo
- Department of Global and International Health, School of Public Health, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
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Lv H, Wang S, Liang Z, Yu W, Yan C, Chen Y, Hu X, Fu R, Zheng M, Group T, Luxembourg A, Liao X, Chen Z. Immunogenicity and safety of the 9-valent human papillomavirus vaccine in Chinese females 9-45 years of age: A phase 3 open-label study. Vaccine 2022; 40:3263-3271. [PMID: 35487814 DOI: 10.1016/j.vaccine.2022.02.061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 02/14/2022] [Accepted: 02/15/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND The 9-valent human papillomavirus (9vHPV; HPV6/11/16/18/31/33/45/52/58) vaccine was approved for use in Chinese women aged 16-26 years in 2018. This phase 3, open-label study (NCT03903562) compared 9vHPV vaccine immunogenicity and safety in Chinese females aged 9-19 years and 27-45 years with Chinese females aged 20-26 years; we report results from day 1 through 1 month post-Dose 3. The study will continue through 54 months post-Dose 3 to assess antibody persistence in Chinese girls aged 9-19 years. METHODS Participants aged 9-45 years received three doses of the 9vHPV vaccine. Geometric mean titers (GMTs) and seroconversion percentages for anti-HPV6/11/16/18/31/33/45/52/58 antibodies were determined by competitive Luminex immunoassay in serum samples obtained at day 1 and 1 month post-Dose 3. Adverse events (AEs) within 30 days post-vaccination and serious AEs (SAEs) occurring at any time were recorded. RESULTS In total, 1990 participants (690 aged 9-19 years; 650 aged 20-26 years; 650 aged 27-45 years) were enrolled. At 1 month post-Dose 3, >99% of participants in the per-protocol immunogenicity population seroconverted to each vaccine HPV type. Anti-HPV6/11/16/18/31/33/45/52/58 antibody GMTs in the 9-19-year age group were non-inferior to those in participants aged 20-26 years. Anti-HPV6/11/16/18/31/33/45/52/58 seroconversion percentages in the 27-45-year age group were non-inferior to those in participants aged 20-26 years. Injection-site and systemic AEs were reported by 43.3% and 50.9%, 50.5% and 57.1%, and 43.8% and 43.4% of participants aged 9-19, 20-26, and 27-45 years, respectively. There were no vaccine-related SAEs, discontinuations due to AEs, and deaths. CONCLUSION Antibody responses induced by 9vHPV vaccination in Chinese females aged 9-19 years and 27-45 years were non-inferior to those in Chinese females aged 20-26 years. The vaccine was generally well tolerated. CLINICALTRIALS gov Identifier: NCT03903562.
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Affiliation(s)
- Huakun Lv
- Zhejiang Provincial Center for Disease Control and Prevention, Zhejiang, China.
| | - Shenyu Wang
- Zhejiang Provincial Center for Disease Control and Prevention, Zhejiang, China.
| | - Zhenzhen Liang
- Zhejiang Provincial Center for Disease Control and Prevention, Zhejiang, China.
| | - Wei Yu
- Keqiao District Center for Disease Control and Prevention, Zhejiang, China.
| | - Chuanfu Yan
- Kaihua County Center for Disease Control and Prevention, Zhejiang, China.
| | - Yingping Chen
- Zhejiang Provincial Center for Disease Control and Prevention, Zhejiang, China.
| | - Xiaosong Hu
- Zhejiang Provincial Center for Disease Control and Prevention, Zhejiang, China.
| | - Rong Fu
- MSD R&D (China) Co., Ltd., Beijing, China.
| | | | | | | | | | - Zhiping Chen
- Zhejiang Provincial Center for Disease Control and Prevention, Zhejiang, China.
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Kangethe JM, Monroe-Wise A, Muiruri PN, Komu JG, Mutai KK, Nzivo MM, Pintye J. Utilisation of cervical cancer screening among women living with HIV at Kenya’s national referral hospital. South Afr J HIV Med 2022; 23:1353. [PMID: 35706549 PMCID: PMC9082290 DOI: 10.4102/sajhivmed.v23i1.1353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 01/25/2022] [Indexed: 11/06/2022] Open
Abstract
Background In 2009, Kenyatta National Hospital (KNH) integrated cervical cancer screening within HIV care using visual inspection with acetic acid (VIA) and Pap smear cytology. Objectives We evaluated utilisation of cervical cancer screening and human papillomavirus (HPV) vaccination among women living with HIV (WLHIV) receiving HIV care at KNH. Method From November 2019 to February 2020, WLHIV aged ≥ 14 years were invited to participate in a survey following receipt of routine HIV services. We assessed awareness of cervical cancer, uptake of cervical cancer screening, uptake of the HPV vaccine, and barriers to utilisation of these services. In a subset of survey participants, focus group discussions (FGDs) were also conducted to identify screening barriers. Results Overall, 305 WLHIV participated in the survey. Median age was 36 years (interquartile range [IQR]: 28–43), 41% were married, and 38% completed secondary education. Most (90%) had HIV RNA < 1000 copies/mL. Awareness of cervical cancer was high (84%), although only 45% of WLHIV had screened for cervical cancer at the referral hospital and only 13% knew how to prevent high-risk HPV. No participants had received an HPV vaccination. Older age, higher education, and knowledge of the HPV vaccine were associated with higher likelihood of cervical cancer screening (P < 0.05). In FGDs, barriers to utilising the services included user fees, fear of the procedure impacting fertility, age and gender of the provider, and long waiting times. Conclusion Despite integration with HIV services, the utilisation of cervical cancer screening was low among WLHIV and implementation barriers contributed to low utilisation.
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Affiliation(s)
- James M Kangethe
- Comprehensive Care Center, HIV Medicine, Kenyatta National Hospital, Nairobi, Kenya
- Department of Medical Microbiology and Immunology, Faculty of Health Sciences, University of Nairobi, Nairobi, Kenya
- Department of Global Health, International AIDS Research and Training Program, University of Washington, Seattle, United States of America
| | - Aliza Monroe-Wise
- Department of Global Health, University of Washington, Seattle, United States of America
| | - Peter N Muiruri
- Comprehensive Care Center, HIV Medicine, Kenyatta National Hospital, Nairobi, Kenya
| | - James G Komu
- Department of Medical Laboratory Sciences, College of Health Sciences, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya
| | - Kenneth K Mutai
- Comprehensive Care Center, HIV Medicine, Kenyatta National Hospital, Nairobi, Kenya
| | - Mirriam M Nzivo
- Department of Biological Sciences, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya
- Department of Biological Sciences, University of Embu, Embu, Kenya
| | - Jillian Pintye
- Department of Global Health, International AIDS Research and Training Program, University of Washington, Seattle, United States of America
- Department of Biobehavioral Nursing and Health Informatics, University of Washington, Seattle, United States of America
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Tota JE, Giuliano AR, Goldstone SE, Dubin B, Saah A, Luxembourg A, Velicer C, Palefsky JM. Anogenital Human Papillomavirus (HPV) Infection, Seroprevalence, and Risk Factors for HPV Seropositivity Among Sexually Active Men Enrolled in a Global HPV Vaccine Trial. Clin Infect Dis 2022; 74:1247-1256. [PMID: 34265048 DOI: 10.1093/cid/ciab603] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND In men, the incidence of human papillomavirus (HPV)-related cancer is rising, but data regarding male HPV infection and seroprevalence are available from only a few countries. METHODS This analysis of a global HPV vaccine trial evaluated baseline data from 1399 human immunodeficiency virus-negative heterosexual men (HM) and men who have sex with men (MSM). Key objectives included assessment of HPV prevalence and risk factors for seropositivity to 9-valent HPV (9vHPV) vaccine types (6, 11, 16, 18, 31, 33, 45, 52, and 58), and concordance between seropositivity and prevalent HPV type. RESULTS Overall, 455 of 3463 HM (13.1%) and 228 of 602 MSM (37.9%) were HPV DNA positive for any 9vHPV vaccine type at baseline. Infection prevalence and seroprevalence (≥1 9vHPV vaccine type) were 13.2% and 8.1%, respectively, among 333 HM from Europe, and 37.9% and 29.9%, respectively, among 335 MSM from Europe or North America. Among men with baseline infection, MSM had higher seroprevalence for concordant HPV types (39.5% vs 10.8% in HM). The seropositivity risk (irrespective of baseline infection status) was higher among MSM versus HM (age-adjusted odds ratio, 3.0 [95% confidence interval, 2.4-6.4]). Among MSM, statistically significant seropositivity risk factors included younger age at sexual debut, higher number of receptive anal sex partners, and less frequent condom use. No factors assessed were associated with seropositivity in HM. CONCLUSIONS Higher proportions of MSM than HM were HPV DNA positive and seropositive, and concordance between HPV DNA positivity and seropositivity, a potential marker of true infection versus carriage, was higher in MSM. Most MSM and HM were seronegative for all 9vHPV vaccine types, suggesting the potential benefit of catch-up vaccination after sexual debut.Clinical Trials Registration. NCT00090285.
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Affiliation(s)
| | - Anna R Giuliano
- Center for Immunization and Infection Research in Cancer, Moffitt Cancer Center and Research Institute, Tampa, Florida, USA
| | | | | | | | | | | | - Joel M Palefsky
- Department of Infectious Diseases, University of California, San Francisco, San Francisco, California, USA
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Daniels V, Saxena K, Patterson-Lomba O, Gomez-Lievano A, Saah A, Luxembourg A, Velicer C, Chen YT, Elbasha E. Modeling the health and economic implications of adopting a 1-dose 9-valent human papillomavirus vaccination regimen in a high-income country setting: An analysis in the United Kingdom. Vaccine 2022; 40:2173-2183. [PMID: 35232593 DOI: 10.1016/j.vaccine.2022.02.067] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 11/19/2021] [Accepted: 02/18/2022] [Indexed: 02/07/2023]
Abstract
Although no human papillomavirus (HPV) vaccine is indicated for single-dose administration, some observational evidence suggests that a 1-dose regimen might reduce HPV infection risk to that achieved with 2 doses. This study estimated the potential health and economic outcomes associated with switching from a 2-dose HPV vaccination program for girls and boys aged 13-14 years to an off-label 9-valent (9vHPV), 1-dose regimen, accounting for the uncertainty of the effectiveness and durability of a single dose. A dynamic HPV transmission infection and disease model was adapted to the United Kingdom and included a probabilistic sensitivity analysis using estimated distributions for duration of protection of 1-dose and degree of protection of 1 relative to 2 doses. One-way sensitivity analyses of key inputs were performed. Outcomes included additional cancer and disease cases and the difference in net monetary benefit (NMB). The 1-dose program was predicted to result in 81,738 additional HPV-related cancer cases in males and females over 100 years compared to the 2-dose program, ranging from 36,673 to 134,347 additional cases (2.5% and 97.5% quantiles, respectively), and had a 7.8% probability of being cost-effective at the £20,000/quality-adjusted life years willingness-to-pay (WTP) threshold. In one-way sensitivity analyses, the number of additional cancer cases was sensitive to the median of the duration of protection distribution and coverage rates. The differences in NMBs were sensitive to the median of the duration of protection distribution, dose price and discount rate, but not coverage variations. Across sensitivity analyses, the probability of 1 dose being cost-effective vs 2 doses was < 50% at the standard WTP threshold. Adoption of a 1-dose 9vHPV vaccination program resulted in more vaccine-preventable HPV-related cancer and disease cases in males and females, introduced substantial uncertainty in health and economic outcomes, and had a low probability of being cost-effective compared to the 2-dose program.
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Affiliation(s)
- Vincent Daniels
- Merck & Co., Inc., 2000 Galloping Hill Rd, Kenilworth, NJ 07033, USA.
| | - Kunal Saxena
- Merck & Co., Inc., 2000 Galloping Hill Rd, Kenilworth, NJ 07033, USA.
| | | | | | - Alfred Saah
- Merck & Co., Inc., 2000 Galloping Hill Rd, Kenilworth, NJ 07033, USA.
| | - Alain Luxembourg
- Merck & Co., Inc., 2000 Galloping Hill Rd, Kenilworth, NJ 07033, USA.
| | - Christine Velicer
- Merck & Co., Inc., 2000 Galloping Hill Rd, Kenilworth, NJ 07033, USA.
| | - Ya-Ting Chen
- Merck & Co., Inc., 2000 Galloping Hill Rd, Kenilworth, NJ 07033, USA.
| | - Elamin Elbasha
- Merck & Co., Inc., 2000 Galloping Hill Rd, Kenilworth, NJ 07033, USA.
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Nicoli F, Mantelli B, Gallerani E, Telatin V, Squarzon L, Masiero S, Gavioli R, Palù G, Barzon L, Caputo A. Effects of the age of vaccination on the humoral responses to a human papillomavirus vaccine. NPJ Vaccines 2022; 7:37. [PMID: 35292655 DOI: 10.1038/s41541-022-00458-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 02/11/2022] [Indexed: 11/11/2022] Open
Abstract
Adult vaccination programs are receiving increasing attention however, little is known regarding the impact of age on the maintenance of the immune response. We investigated this issue in the context of a human papillomavirus (HPV) vaccination program collecting real-world data on the durability of humoral immunity in 315 female subjects stratified according to vaccination age (adolescents and adults) and sampled at early or late time points after the last vaccine dose. HPV-specific IgGs, but not memory B cells, were induced and maintained at higher levels in subjects vaccinated during adolescence. Nonetheless, antibody functions waned over time to a similar degree in adolescents and adults. To shed light on this phenomena, we analyzed quantitative and qualitative properties of lymphocytes. Similar biochemical features were observed between B-cell subsets from individuals belonging to the two age groups. Long term humoral responses toward vaccines administered at an earlier age were comparably maintained between adolescents and adults. The percentages of naïve B and CD4+ T cells were significantly higher in adolescents, and the latter directly correlated with IgG titers against 3 out of 4 HPV types. Our results indicate that age-specific HPV vaccine responsiveness is mostly due to quantitative differences of immune cell precursors rather than qualitative defects in B cells. In addition, our results indicate that adults also have a good humoral immunogenic profile, suggesting that their inclusion in catch-up programmes is desirable.
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Cantile T, Leuci S, Blasi A, Coppola N, Sorrentino R, Ferrazzano GF, Mignogna MD. Human Papilloma Virus Vaccination and Oropharyngeal Cancer: Knowledge, Perception and Attitude among Italian Pediatric Dentists. Int J Environ Res Public Health 2022; 19:790. [PMID: 35055612 DOI: 10.3390/ijerph19020790] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 01/06/2022] [Accepted: 01/08/2022] [Indexed: 01/27/2023]
Abstract
Background: Pediatric dentists could play a key role in the prevention of human papilloma virus (HPV)-related oropharyngeal cancer (OP-cancer). The aim of this study was to assess knowledge, perception, and attitude on HPV-related OP-cancer, HPV infection, and HPV vaccination among Italian pediatric dentists. Methods: A cross-sectional study was conducted. Pediatric dentists received, by email, a link to participate in the questionnaire online. The questionnaire comprised four parts: (i) demographic information, (ii) knowledge on HPV-related OP-cancer, HPV infection, and HPV vaccine, (iii–iiii) perceptions and attitude on HPV-related OP-cancer, HPV infection, and HPV vaccine. Data were statistically analyzed with Kruskal–Wallis and Mann–Whitney test and Pearson’s chi-square test. Results: A total of 271 pediatric dentists completed the questionnaire. Results showed a good overall knowledge; a positive perception of their role in HPV disease prevention; a good attitude in discussing sensitive topics; a need for acquiring more information about HPV’s connection to cancer, HPV infection, and HPV vaccine. Conclusions: Improving educational training programs, as well as informing about prevention of HPV-related OP-cancer, will place pediatric dentists in the front line of HPV diseases primary prevention.
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Affiliation(s)
- Charlene M C Rodrigues
- Department of Zoology, University of Oxford, Oxford, UK; Department of Paediatric Infectious Diseases, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Stanley A Plotkin
- Department of Pediatrics, University of Pennsylvania, Philadelphia, PA, United States.
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Zibako P, Tsikai N, Manyame S, Ginindza TG. Knowledge, attitude and practice towards cervical cancer prevention among mothers of girls aged between 9 and 14 years: a cross sectional survey in Zimbabwe. BMC Womens Health 2021; 21:426. [PMID: 34930221 PMCID: PMC8691087 DOI: 10.1186/s12905-021-01575-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 12/16/2021] [Indexed: 11/10/2022] Open
Abstract
Background Cervical cancer (CC) morbidity and mortality is still high in developing countries like Zimbabwe. Treatment for CC is out of reach for many women, hence the need to maximise on prevention which mainly includes screening and administering human papillomavirus (HPV) vaccine. Knowledge about CC prevention is a prerequisite for utilisation of all the available options for CC prevention, yet little is known about its levels and the corresponding attitudes and practices on cancer prevention methods within the society.
Methods A cross sectional survey was done to assess knowledge, attitude and practice (KAP) on CC prevention among mothers of girls aged between 9 and 14 years in Zimbabwe as well as factors explaining the KAP. Four hundred and six mothers participate. Descriptive and inferential statistics (binary logistic regression and Chi-Square test of association) were applied to determine participant characteristics with KAP using STATA version 16 software. Findings Overall KAP of cervical cancer prevention is in a poor state. The knowledge was poor with 24% being able to say CC is caused by HPV; the attitude is negative with 58% being of the opinion that CC is caused by witchcraft and it is a death sentence, while the bad practices of relying only on traditional means were being practiced. Factors associated with knowledge are: not having medical aid (odds: 0.17, 95%CI: 0.05–0.59, p = 0.005) and high levels of education (secondary level odds: 4.20; 95%CI: 2.25–7.84 p < 0.001 and tertiary odds: 7.75; 95%CI: 2.04–29.45, p-value: 0.003 compared to primary education). Attitude towards CC management was driven by levels of education (secondary level odds: 0.39, 95%CI: 0.20–0.78, p = 0.007 and tertiary odds: 0.12, 95%CI: 0.04–0.33, p < 0.001), the same factor increases odds of good practice (secondary odds: 3.78, 95%CI: 1.99–7.18, p < 0.001 and tertiary odds: 3.78, 95%CI: 1.99–7.18, p < 0.001). On the other hand, HPV vaccine knowledge was also very moderate (with majority of mothers not knowing the right age of vaccination; vaccine acceptability was high (90%), but uptake was very low (8% had their daughter vaccinated). Conclusion KAP about CC prevention was poor with factors necessary for improvement of KAP identified as education, medical insurance coverage. Making health education easily accessible in schools, primary health facilities and various media platforms will help to address the myths on causes of CC and how it can be treated. Health education and availability of free screening services and free vaccine will improve CC prevention out outcomes. Supplementary Information The online version contains supplementary material available at 10.1186/s12905-021-01575-z.
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Landier W, Bhatia S, Wong FL, York JM, Flynn JS, Henneberg HM, Singh P, Adams K, Wasilewski-Masker K, Cherven B, Jasty-Rao R, Leonard M, Connelly JA, Armenian SH, Robison LL, Giuliano AR, Hudson MM, Klosky JL. Immunogenicity and safety of the human papillomavirus vaccine in young survivors of cancer in the USA: a single-arm, open-label, phase 2, non-inferiority trial. Lancet Child Adolesc Health 2021; 6:38-48. [PMID: 34767765 DOI: 10.1016/s2352-4642(21)00278-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/16/2021] [Accepted: 08/20/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND Young survivors of cancer are at increased risk for cancers that are related to human papillomavirus (HPV), primarily caused by oncogenic HPV types 16 and 18. We aimed to examine the immunogenicity and safety of the three-dose series of HPV vaccine in young survivors of cancer. METHODS We conducted an investigator-initiated, phase 2, single-arm, open-label, non-inferiority trial at five National Cancer Institute-designated comprehensive cancer centres in the USA. Eligible participants were survivors of cancer who were HPV vaccine-naive, were aged 9-26 years, in remission, and had completed cancer therapy between 1 and 5 years previously. Participants received three intramuscular doses of either quadrivalent HPV vaccine (HPV4; enrolments on or before March 1, 2016) or nonavalent HPV vaccine (HPV9; enrolments after March 1, 2016) over 6 months (on day 1, at month 2, and at month 6). We also obtained data from published clinical trials assessing safety and immunogenicity of HPV4 and HPV9 in 9-26-year-olds from the general population, as a comparator group. The primary endpoint was antibody response against HPV types 16 and 18 at month 7 in the per-protocol population. A response was deemed non-inferior if the lower bound of the multiplicity-adjusted 95% CI was greater than 0·5 for the ratio of anti-HPV-16 and anti-HPV-18 geometric mean titres (GMTs) in survivors of cancer versus the general population. Responses were examined separately in male and female participants by age group (ie, 9-15 years and 16-26 years). Safety was assessed in all participants who received at least one vaccine dose and for whom safety data were available. This study is registered with ClinicalTrials.gov, NCT01492582. This trial is now completed. FINDINGS Between Feb 18, 2013, and June 22, 2018, we enrolled 453 survivors of cancer, of whom 436 received one or more vaccine doses: 203 (47%) participants had survived leukaemia, 185 (42%) were female, and 280 (64%) were non-Hispanic white. Mean age at first dose was 15·6 years (SD 4·6). 378 (83%) of 453 participants had evaluable immunogenicity data; main reasons for exclusion from per-protocol analysis were to loss to follow-up, patient reasons, and medical reasons. Data were also obtained from 26 486 general population controls. The ratio of mean GMT for anti-HPV types 16 and 18 in survivors of cancer versus the general population was more than 1 for all subgroups (ie, aged 9-15 years, aged 16-26 years, male, and female groups) in both vaccine cohorts (ranging from 1·64 [95% CI 1·12-2·18] for anti-HPV type 16 in female participants aged 9-15 years who received HPV9, to 4·77 [2·48-7·18] for anti-HPV type 18 in male participants aged 16-26 years who received HPV4). Non-inferiority criteria were met within each age and sex subgroup, except against HPV type 18 in female participants aged 16-26 years receiving HPV9 (4·30 [0·00-9·05]). Adverse events were reported by 237 (54%) of 435 participants; injection site pain was most common (174 [40%] participants). One serious adverse event (ie, erythema nodosum) was possibly related to vaccine (HPV9; 16-26 year female cohort). INTERPRETATION Immunogenicity and safety of HPV vaccine three-dose series in survivors of cancer is similar to that in the general population, providing evidence for use in this clinically vulnerable population. FUNDING US National Cancer Institute, Merck, Sharp & Dohme, and American Lebanese Syrian Associated Charities.
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Affiliation(s)
- Wendy Landier
- Institute for Cancer Outcomes and Survivorship, Department of Pediatrics, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA.
| | - Smita Bhatia
- Institute for Cancer Outcomes and Survivorship, Department of Pediatrics, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - F Lennie Wong
- Department of Population Sciences, City of Hope, Duarte, CA, USA
| | - Jocelyn M York
- Institute for Cancer Outcomes and Survivorship, Department of Pediatrics, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Jessica S Flynn
- Department of Epidemiology and Cancer Control, St Jude Children's Research Hospital, Memphis, TN, USA
| | - Harrison M Henneberg
- Institute for Cancer Outcomes and Survivorship, Department of Pediatrics, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Purnima Singh
- Institute for Cancer Outcomes and Survivorship, Department of Pediatrics, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Kandice Adams
- Institute for Cancer Outcomes and Survivorship, Department of Pediatrics, School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Karen Wasilewski-Masker
- Department of Pediatrics, Emory University and Children's Healthcare of Atlanta, Atlanta, GA, USA
| | - Brooke Cherven
- Department of Pediatrics, Emory University and Children's Healthcare of Atlanta, Atlanta, GA, USA
| | - Rama Jasty-Rao
- Division of Pediatric Hematology/Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Marcia Leonard
- Division of Pediatric Hematology/Oncology, University of Michigan, Ann Arbor, MI, USA
| | - James A Connelly
- Department of Pediatrics, Vanderbilt University, Nashville, TN, USA
| | - Saro H Armenian
- Department of Population Sciences, City of Hope, Duarte, CA, USA
| | - Leslie L Robison
- Department of Epidemiology and Cancer Control, St Jude Children's Research Hospital, Memphis, TN, USA
| | - Anna R Giuliano
- Center for Immunization and Infection Research in Cancer, Moffitt Cancer Center, Tampa, FL, USA
| | - Melissa M Hudson
- Department of Epidemiology and Cancer Control, St Jude Children's Research Hospital, Memphis, TN, USA
| | - James L Klosky
- Department of Pediatrics, Emory University and Children's Healthcare of Atlanta, Atlanta, GA, USA
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Whitworth H, Changalucha J, Baisley K, Watson-Jones D. Adolescent Health Series: HPV infection and vaccination in sub-Saharan Africa: 10 years of research in Tanzanian female adolescents - narrative review. Trop Med Int Health 2021; 26:1345-1355. [PMID: 34310816 DOI: 10.1111/tmi.13660] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cervical cancer is the leading cause of cancer-related morbidity and mortality in many sub-Saharan African (SSA) countries, including Tanzania. Most cervical cancer cases worldwide are attributable to infection of the cervix with Human Papillomavirus (HPV), a vaccine-preventable sexually transmitted infection (STI). Over the past 10 years, we have conducted a programme of HPV research in pre-adolescents and adolescents in Mwanza, the second-largest city in Tanzania, which is situated in a malaria-endemic region. In this narrative review article, we summarise the contribution of our work, alongside work of others, to improve the understanding of HPV epidemiology in SSA and development of setting-appropriate, evidence-based intervention strategies. We present evidence for very high prevalence and incidence of HPV infection among female SSA adolescents around the time of sexual debut, describe risk factors for HPV acquisition, and discuss associations between HPV, HIV and other STIs, which are also highly prevalent within this population. We summarise findings from early clinical trials of HPV vaccines in SSA, the first of which was an immunogenicity and safety trial conducted in Mwanza, Tanzania, and Dakar, Senegal. Within the trial, we evaluated for the first time the potential impact of malaria and helminth infection on vaccine-induced antibody responses in Tanzanian girls. We describe research evaluating optimal HPV vaccine delivery strategies within this setting, perceived requirements for and barriers to vaccine implementation among key informants from LMIC, vaccine acceptability among girls and parents, and opportunities for co-delivery of interventions alongside HPV vaccination to an adolescent population. Finally, we discuss country-level barriers to vaccine uptake in LMIC, and ongoing studies in Tanzania and other SSA countries of reduced-dose HPV vaccination schedules that may alleviate cost and logistical barriers to vaccine implementation.
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Affiliation(s)
- Hilary Whitworth
- Mwanza Intervention Trials Unit, National Institute of Medical Research, Mwanza, Tanzania
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK
| | - John Changalucha
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK
| | - Kathy Baisley
- Mwanza Intervention Trials Unit, National Institute of Medical Research, Mwanza, Tanzania
| | - Deborah Watson-Jones
- Mwanza Intervention Trials Unit, National Institute of Medical Research, Mwanza, Tanzania
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK
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Abstract
Background: Warts are a common dermatologic complaint with an increased incidence within the pediatric population. Warts are caused by multiple strains of the human papillomavirus (HPV). There is little research on how a patient's HPV immunization status affects the response to treatment of warts in pediatric patients. Aims: The purpose of this study is to investigate the relationship between HPV vaccination status and wart resolution. Materials and Methods: This is a retrospective chart review that investigates the relationship between response to routine treatment of warts and a subject's HPV vaccination status. Results: There was no significant relationship found between HPV vaccination status and resolution of warts (p = 0.797). However, there was a significant positive correlation between having the HPV vaccine and number of visits for the treatment of warts (r = 0.180, P = 0.024). Conclusion: This study did not show a significant correlation between HPV vaccination status and wart resolution, although it demonstrated a significant positive relationship between those immunized with the HPV vaccine and an increased number of treatment visits. Possible explanations for this unexpected correlation include the variation in HPV vaccine formulation, vaccination status, and frequency of office visits, since vaccinated patients are more likely to be compliant with office visits.
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Affiliation(s)
- Anuk Burli
- Department of Dermatology, University of Rochester School of Medicine and Dentistry, Rochester, NY, United States
| | - Sarah Hancock
- Department of Dermatology, University of Rochester School of Medicine and Dentistry, Rochester, NY, United States
| | - Yu Tina Zhao
- Department of Dermatology, University of Rochester School of Medicine and Dentistry, Rochester, NY, United States
| | - Deborah Paul
- Department of Dermatology, University of Rochester School of Medicine and Dentistry, Rochester, NY, United States
| | - Maria Cordisco
- Department of Dermatology, University of Rochester School of Medicine and Dentistry, Rochester, NY, United States
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40
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Kim SH, Park YC, Song JM. Evaluation of the antigenic stability of influenza virus like particles after exposure to acidic or basic pH. Clin Exp Vaccine Res 2021; 10:252-258. [PMID: 34703808 PMCID: PMC8511596 DOI: 10.7774/cevr.2021.10.3.252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 09/02/2021] [Indexed: 11/15/2022] Open
Abstract
Purpose Virus-like particles (VLPs) are being developed as a promising vaccine platform and therapeutic delivery. Various strategies for effectively constructing VLPs have been studied, but relatively few studies have been done on various factors affecting storage. In this study, we investigated the antigenic changes of VLPs in an acidic or basic pH environment using influenza VLPs as an experimental model. Materials and Methods Influenza VLPs containing hemagglutination and M1 proteins were generated and their antigenicity and protective immunity in vitro and in vivo were evaluated after exposure to acidic (pH 4 and 5) or basic (pH 9 and 10) pH buffers. Results VLP exposed to basic pH showed similar levels of antigenicity to those stored in neutral pH, while antigenicity of VLP exposed to acidic pH was found to be significantly reduced compared to those expose neutral or basic pH. All groups of mice responded effectively to low concentrations of virus infections; however, VLP vaccine groups exposed to acid pH were found not to induce sufficient protective immune responses when a high concentration of influenza virus infection. Conclusion In order for VLP to be used as a more powerful vaccine platform, it should be developed in a strategic way to respond well to external changes such as acidic pH conditions.
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Affiliation(s)
- So Hwa Kim
- Department of Next Generation Applied Sciences, Graduate School, Sungshin Women's University, Seoul, Korea
| | - Young Chan Park
- Department of Next Generation Applied Sciences, Graduate School, Sungshin Women's University, Seoul, Korea
| | - Jae Min Song
- Department of Next Generation Applied Sciences, Graduate School, Sungshin Women's University, Seoul, Korea.,School of Biopharmaceutical and Medical Sciences, Sungshin Women's University, Seoul, Korea
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41
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Gargano JW, You M, Potter R, Alverson G, Swanson R, Saraiya M, Markowitz LE, Copeland G. An Evaluation of Dose-Related HPV Vaccine Effectiveness Using Central Registries in Michigan. Cancer Epidemiol Biomarkers Prev 2021; 31:183-191. [PMID: 34663615 DOI: 10.1158/1055-9965.epi-21-0625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 08/02/2021] [Accepted: 10/04/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Human papillomavirus (HPV) vaccine effectiveness (VE) evaluations provide important information for vaccination programs. We established a linkage between statewide central registries in Michigan to estimate HPV VE against in situ and invasive cervical lesions (CIN3+). METHODS We linked females in Michigan's immunization and cancer registries using birth records to establish a cohort of 773,193 women with known vaccination history, of whom 3,838 were diagnosed with CIN3+. Residential address histories from a stratified random sample were used to establish a subcohort of 1,374 women without CIN3+ and 2,900 with CIN3+ among continuous Michigan residents. VE and 95% confidence intervals (CI) were estimated using cohort and case-cohort methods for up-to-date (UTD) vaccination and incomplete vaccination with 1 and 2 doses, and stratified by age at vaccination. RESULTS Both analytic approaches demonstrated lower CIN3+ risk with UTD and non-UTD vaccination vs. no vaccination. The cohort analysis yielded VE estimates of 66% (95% CI, 60%-71%) for UTD, 33% (95% CI, 18%-46%) for 2 doses-not UTD, and 40% (95% CI, 27%-50%) for 1 dose. The case-cohort analysis yielded VE estimates of 72% (95% CI, 64%-79%) for UTD, 39% (95% CI, 10%-58%) for 2 doses-not UTD, and 48% (95% CI, 25%-63%) for 1 dose. VE was higher for vaccination at age <20 than ≥20 years. CONCLUSIONS The statewide registry linkage found significant VE against CIN3+ with incomplete HPV vaccination, and an even higher VE with UTD vaccination. IMPACT Future VE evaluations by number of doses for women vaccinated at younger ages may further clarify dose-related effectiveness.
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Affiliation(s)
- Julia W Gargano
- Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia.
| | - Mei You
- Michigan Department of Health and Human Services, Lansing, Michigan
| | | | | | - Robert Swanson
- Michigan Department of Health and Human Services, Lansing, Michigan
| | - Mona Saraiya
- Division of Cancer Prevention and Control, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Lauri E Markowitz
- Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Glenn Copeland
- Michigan Department of Health and Human Services, Lansing, Michigan
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42
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Abstract
Human papillomavirus (HPV) vaccines are among the most effective vaccines available, the first to prevent infection by a mucosatropic sexually transmitted infectious agent and to do so without specific induction of mucosal immunity. Currently available prophylactic HPV vaccines are based on virus-like particles that self-assemble spontaneously from the L1 major capsid protein. The first HPV vaccine was licensed in 2006. All vaccines target HPV-16 and HPV-18, types which cause the majority of HPV-attributable cancers. As of 2020, HPV vaccines had been introduced into national immunization programs in more than 100 countries. Vaccination polices have evolved; most programs target vaccination of young adolescent girls, with an increasing number also including boys. The efficacy and safety found in prelicensure trials have been confirmed by data from national immunization programs. The dramatic impact and effectiveness observed has stimulated interest in ambitious disease reduction goals.
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Affiliation(s)
- Lauri E Markowitz
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - John T Schiller
- Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
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43
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Collins-Fairclough A, Donken R, Nosyk B, Dobson S, Ogilivie G, Sadarangani M. Non-inferior antibody levels for HPV16/18 after extended two-dose schedules compared with a six-month interval: findings of a systematic review and meta-analysis. Hum Vaccin Immunother 2021; 17:3554-3561. [PMID: 34187301 DOI: 10.1080/21645515.2021.1926182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Protection after human papillomavirus (HPV) vaccination can be maximized by optimizing vaccination schedules. We systematically reviewed immunogenicity and effectiveness of HPV vaccines administered 6 months apart compared with longer intervals. Seroconversion to vaccine-type HPV was non-inferior for 12- compared with 6-month intervals, but inconclusive for comparison of 36-96 months with 6 months. A 12-month interval showed non-inferior (margin 0.5) vaccine-type HPV antibody responses compared with a 6-month interval. Compared to 6 months, an interval of 36-96 months resulted in non-inferior antibody responses for HPV6 and high-risk types HPV16 and 18, but did not lead to a non-inferior antibody response for HPV11 (GMR 0.63, 95% CI:0.41-0.97). Data on the effectiveness of extended two-dose schedules were limited. Our findings indicate that HPV immunization programs could adopt a 12-month interval instead of 6 months for increased flexibility without compromising immunogenicity. Further evaluation to confirm the immunogenicity and effectiveness of intervals beyond 12 months is warranted.
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Affiliation(s)
- Aneisha Collins-Fairclough
- Faculty of Health Sciences, Simon Fraser University, Burnaby, Canada.,Faculty of Science and Sport, University of Technology Jamaica, Kingston, Jamaica
| | - Robine Donken
- Vaccine Evaluation Center, BC Children's Hospital Research Institute, Vancouver, Canada.,School of Population and Public Health, Faculty of Medicine, University of British Columbia, Vancouver, Canada.,Women's Health Research Institute, BC Women's Hospital and Health Center, Vancouver, Canada
| | - Bohdan Nosyk
- Faculty of Health Sciences, Simon Fraser University, Burnaby, Canada
| | - Simon Dobson
- Vaccine Evaluation Center, BC Children's Hospital Research Institute, Vancouver, Canada
| | - Gina Ogilivie
- School of Population and Public Health, Faculty of Medicine, University of British Columbia, Vancouver, Canada.,Women's Health Research Institute, BC Women's Hospital and Health Center, Vancouver, Canada
| | - Manish Sadarangani
- Vaccine Evaluation Center, BC Children's Hospital Research Institute, Vancouver, Canada.,Department of Pediatrics, University of British Columbia, Vancouver, Canada
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44
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Hoes J, Pasmans H, Schurink-van 't Klooster TM, van der Klis FRM, Donken R, Berkhof J, de Melker HE. Review of long-term immunogenicity following HPV vaccination: Gaps in current knowledge. Hum Vaccin Immunother 2021; 18:1908059. [PMID: 34033518 PMCID: PMC8920133 DOI: 10.1080/21645515.2021.1908059] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The licensed HPV vaccines are highly efficacious and induce high levels of neutralizing antibody levels, the assumed mediators of protection. However, a correlate of protection against HPV is lacking, and the evidence is still limited as to long-term persistence of antibodies, especially following reduced dosing schedules. The World Health Organization (WHO) urges immunization of young girls as part of the strategy to eliminate cervical cancer, thus long-lasting protection is required. The current review describes long-term follow-up regarding vaccine-induced seropositivity and antibody level development following the different vaccines and dosing schedules. Implications and opportunities of long-term vaccine-induced immune responses are discussed, such as the gaps in monitoring of long-term immunogenicity, the possibilities of reduced dosing schedules, and the importance of evidence for durable immunity.
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Affiliation(s)
- J Hoes
- Center for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands.,Department of Epidemiology and Data Science, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - H Pasmans
- Center for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - T M Schurink-van 't Klooster
- Center for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - F R M van der Klis
- Center for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - R Donken
- Department of Epidemiology and Data Science, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - J Berkhof
- Department of Epidemiology and Data Science, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - H E de Melker
- Center for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
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45
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Hoes J, King AJ, Schurink-van 't Klooster TM, Berkhof PJ, Bogaards JA, de Melker HE. Vaccine effectiveness following routine immunization with bivalent HPV vaccine: Protection against incident genital HPV infections from a reduced-dosing schedule. J Infect Dis 2021; 226:634-643. [PMID: 33964158 PMCID: PMC9441205 DOI: 10.1093/infdis/jiab250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 05/07/2021] [Indexed: 11/23/2022] Open
Abstract
Background In the Netherlands, the bivalent human papillomavirus (HPV) vaccine has been offered to preadolescent girls via the National Immunization Program in a 2-dose schedule since 2014. The current study estimates vaccine effectiveness (VE) against HPV infections up to 4 years postvaccination among girls eligible for routine 2-dose immunization. Methods A cohort study (HAVANA2) was used in which participants annually filled out an online questionnaire and provided a vaginal self-sample for determination of HPV by the SPF10-LiPA25 assay, able to detect 25 HPV types. VE against incident type-specific infections and pooled outcomes was estimated by a Cox proportional hazards model with shared frailty between the HPV types. Results In total, 2027 girls were included in the study, 1098 (54.2%) of whom were vaccinated with 2 doses. Highest incidence rate was 5.0/1000 person-years (HPV-51) among vaccinated participants and 9.1/1000 person-years (HPV-74) among unvaccinated participants. Adjusted pooled VE was 84.0% (95% confidence interval [CI], 27.0%–96.5%) against incident HPV-16/18 infections and 86.5% (95% CI, 39.5%–97.08%) against cross-protective types HPV-31/33/45. Conclusions Four years postvaccination, 2 doses of bivalent HPV vaccine were effective in the prevention of incident HPV-16/18 infections and provided cross-protection to HPV-31/33/45. Our VE estimates rival those from 3-dose schedules, indicating comparable protection by 2-dose schedules.
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Affiliation(s)
- Joske Hoes
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands.,Department of Epidemiology & Data Science, Amsterdam UMC, location VUmc, Amsterdam, The Netherlands
| | - Audrey J King
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - Tessa M Schurink-van 't Klooster
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands.,Department of Epidemiology & Data Science, Amsterdam UMC, location VUmc, Amsterdam, The Netherlands
| | - Prof Johannes Berkhof
- Department of Epidemiology & Data Science, Amsterdam UMC, location VUmc, Amsterdam, The Netherlands
| | - Johannes A Bogaards
- Department of Epidemiology & Data Science, Amsterdam UMC, location VUmc, Amsterdam, The Netherlands.,Department of Epidemiology & Data Science, Amsterdam UMC, location AMC, Amsterdam, The Netherlands
| | - Hester E de Melker
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
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46
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Margolis MA, Brewer NT, Shah PD, Calo WA, Alton Dailey S, Gilkey MB. Talking about recommended age or fewer doses: what motivates HPV vaccination timeliness? Hum Vaccin Immunother 2021; 17:3077-3080. [PMID: 33961539 DOI: 10.1080/21645515.2021.1912550] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
HPV vaccination is recommended for U.S. adolescents at ages 11-12 and requires two versus three doses if the series is started before age 15. We evaluated how talking about recommended age or fewer doses motivates on-time HPV vaccination. Our national, online experiment randomized 1,263 parents of adolescents to view one of three messages about HPV vaccination recommendations or no message. Messages framed guidelines as recommending: vaccination at age 11-12; fewer doses for those who start vaccination at age 11-12; or, fewer doses for those who start vaccination before age 15. We then assessed parents' preferred age for HPV vaccination, categorizing preferences of ≤12 years as on-time. Parents who viewed "at age 11-12" versus no message more often preferred on-time HPV vaccination (63% vs. 43%, p < .05) and did not differ from those viewing "fewer doses at age 11-12" (63% vs. 64%, p > .05). Parents who viewed "fewer doses before age 15" less often preferred on-time HPV vaccination (39%, p < .05). Recommending HPV vaccination at age 11-12 encouraged on-time vaccination, while offering fewer doses had little impact. Providers should avoid framing HPV vaccination guidelines in reference to age 15 because doing so may discourage on-time vaccination by introducing confusion about the recommended age.
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Affiliation(s)
- Marjorie A Margolis
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA.,Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - Noel T Brewer
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA.,Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - Parth D Shah
- Public Health Sciences Division, Hutchinson Institute for Cancer Outcomes Research, Seattle, WA, USA
| | - William A Calo
- Department of Public Health Sciences, Penn State College of Medicine, Hershey, PA, USA.,Penn State Hershey Cancer Institute, Hershey, PA, USA
| | - Susan Alton Dailey
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
| | - Melissa B Gilkey
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA.,Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
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47
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Teppler H, Bautista O, Flores S, McCauley J, Luxembourg A. Design of a Phase III immunogenicity and safety study evaluating two-dose regimens of 9-valent human papillomavirus (9vHPV) vaccine with extended dosing intervals. Contemp Clin Trials 2021; 105:106403. [PMID: 33857679 DOI: 10.1016/j.cct.2021.106403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 03/26/2021] [Accepted: 04/09/2021] [Indexed: 10/21/2022]
Abstract
HPV vaccines are widely licensed as two-dose regimens, 6-12 months apart, for adolescents. Extended intervals between doses may be necessary due to resource constraints or vaccination program disruption. This international, multicenter, open-label study (NCT04708041) will evaluate the safety and immunogenicity of two-dose 9vHPV vaccine regimens with extended intervals of 1-5 years between doses in boys/girls compared with a standard three-dose regimen in women. Participants (planned N = 700) will be enrolled into six cohorts; Cohort 0: boys/girls aged 10-15 years who received one 9vHPV vaccine dose ≥1 year before enrollment without completing the series will receive one study dose of 9vHPV vaccine at day 1; Cohorts 1-4: HPV vaccination-naïve boys/girls aged 9-14 years will receive two doses (day 1 and month 12, 24, 36, or 60); Cohort 5: HPV vaccination-naïve women aged 16-26 years will receive three doses (day 1, months 2 and 6). Primary analyses will be based on serological responses 1 month after final vaccine dose. Co-primary objectives will (1) evaluate non-inferiority of geometric mean titers in each of Cohorts 1-4 versus Cohort 5, and (2) characterize antibody responses in Cohort 0, accounting for the interval between commercial and study vaccine dose. Injection-site and systemic adverse events (AEs) will be collected for 15 days and serious AEs for 12 months post-vaccination; vaccine-related serious AEs and deaths will be collected throughout the study. Results will inform completion of vaccination in individuals who did not complete the recommended series and guide implementation of vaccination programs in resource-limited settings.
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Affiliation(s)
- Hedy Teppler
- Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, NJ 07033, USA
| | - Oliver Bautista
- Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, NJ 07033, USA
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- Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, NJ 07033, USA
| | - Sheryl Flores
- Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, NJ 07033, USA
| | - Jennifer McCauley
- Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, NJ 07033, USA
| | - Alain Luxembourg
- Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, NJ 07033, USA.
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48
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Paraskevaidis E, Athanasiou A, Paraskevaidi M, Bilirakis E, Galazios G, Kontomanolis E, Dinas K, Loufopoulos A, Nasioutziki M, Kalogiannidis I, Athanasiadis A, Papanikolaou A, Vatopoulou A, Grimbizis G, Tsolakidis D, Daponte A, Valasoulis G, Gritzeli S, Michail G, Adonakis G, Paschopoulos M, Tsonis O, Anaforidou ME, Batistatou A, Kyrgiou M. Cervical Pathology Following HPV Vaccination in Greece: A 10-year HeCPA Observational Cohort Study. In Vivo 2021; 34:1445-1449. [PMID: 32354944 DOI: 10.21873/invivo.11927] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 02/25/2020] [Accepted: 03/04/2020] [Indexed: 01/14/2023]
Abstract
BACKGROUND In Greece the population-level impact of HPV vaccination is unknown due to lack of official registries. This study presents in a pragmatic frame the comparison of cervical pathology data between HPV-vaccinated and unvaccinated women referred for colposcopy. PATIENTS AND METHODS This is an observational prospective cohort study performed in 7 academic Obstetrics and Gynaecology Departments across Greece between 2009-2019. Cases were women that had completed HPV vaccination before coitarche and were referred for colposcopy due to abnormal cytology. For each vaccinated woman an unvaccinated matched control was selected. RESULTS A total of 849 women who had been vaccinated before coitarche and 849 unvaccinated controls were recruited. The combination of cytological, colposcopic and molecular findings necessitated treatment in only a single case among vaccinated (0.1%) and in 8.4% among unvaccinated. CONCLUSION HPV vaccination at a proper age can markedly reduce development of severe cervical precancers and consequently the need for treatment, as well as their long-term related obstetrical morbidity.
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Affiliation(s)
| | - Antonios Athanasiou
- Institute of Reproductive and Developmental Biology, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, U.K
| | - Maria Paraskevaidi
- Institute of Reproductive and Developmental Biology, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, U.K
| | | | - Georgios Galazios
- Department of Obstetrics and Gynaecology, University Hospital of Alexandroupolis, Alexandroupolis, Greece
| | - Emmanuel Kontomanolis
- Department of Obstetrics and Gynaecology, University Hospital of Alexandroupolis, Alexandroupolis, Greece
| | - Konstantinos Dinas
- Second Department of Obstetrics and Gynaecology, University of Thessaloniki, Thessaloniki, Greece
| | - Aristotelis Loufopoulos
- Second Department of Obstetrics and Gynaecology, University of Thessaloniki, Thessaloniki, Greece
| | - Maria Nasioutziki
- Second Department of Obstetrics and Gynaecology, University of Thessaloniki, Thessaloniki, Greece
| | - Ioannis Kalogiannidis
- Third Department of Obstetrics and Gynaecology, University of Thessaloniki, Thessaloniki, Greece
| | - Apostolos Athanasiadis
- Third Department of Obstetrics and Gynaecology, University of Thessaloniki, Thessaloniki, Greece
| | - Alexios Papanikolaou
- Second Department of Obstetrics and Gynaecology, University of Thessaloniki, Thessaloniki, Greece
| | - Anastasia Vatopoulou
- First Department of Obstetrics and Gynaecology, University of Thessaloniki, Thessaloniki, Greece
| | - Gregorios Grimbizis
- First Department of Obstetrics and Gynaecology, University of Thessaloniki, Thessaloniki, Greece
| | - Dimitrios Tsolakidis
- First Department of Obstetrics and Gynaecology, University of Thessaloniki, Thessaloniki, Greece
| | - Alexandros Daponte
- Department of Obstetrics and Gynaecology, University Hospital of Larissa, Larissa, Greece
| | - George Valasoulis
- Department of Obstetrics and Gynaecology, University Hospital of Larissa, Larissa, Greece
| | - Stella Gritzeli
- Department of Obstetrics and Gynaecology, General Hospital of Larissa, Larissa, Greece
| | - Georgios Michail
- Department of Obstetrics and Gynaecology, University Hospital of Patras, Patras, Greece
| | - Georgios Adonakis
- Department of Obstetrics and Gynaecology, University Hospital of Patras, Patras, Greece
| | - Minas Paschopoulos
- Department of Obstetrics and Gynaecology, University Hospital of Ioannina, Ioannina, Greece
| | - Orestis Tsonis
- Department of Obstetrics and Gynaecology, University Hospital of Ioannina, Ioannina, Greece
| | | | - Anna Batistatou
- Department of Pathology, University Hospital of Ioannina, Ioannina, Greece
| | - Maria Kyrgiou
- Institute of Reproductive and Developmental Biology, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, U.K
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Koskan AM, Dominick LN, Helitzer DL. Rural Caregivers' Willingness for Community Pharmacists to Administer the HPV Vaccine to Their Age-Eligible Children. J Cancer Educ 2021; 36:189-198. [PMID: 31493172 DOI: 10.1007/s13187-019-01617-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Human papillomavirus (HPV) vaccination uptake varies by geographic regions with rural, often medically underserved areas, lagging behind more urban regions in terms of vaccine initiation and completion. In these regions, pharmacies may serve as an additional location for HPV vaccine administration. Little is known about rural caregivers' willingness to have their HPV vaccine age-eligible children obtain this vaccine from their local pharmacist. First and second authors conducted 26 in-depth interviews with caregivers of HPV vaccine age-eligible children living in rural regions of a southwestern state to explore their perceptions of the HPV vaccine and their willingness for pharmacist-administered HPV vaccination. They analyzed interview data using an inductive qualitative content analyses approach. The majority of caregivers were unaware that pharmacists could offer adolescent vaccines. However, most were willing to allow their children to receive the vaccine from this non-traditional source. Comments related to obtaining vaccinations from pharmacists related mostly to concerns about proper training and their certification to vaccinate against HPV. Caregivers believed that having a pharmacist administer the HPV vaccine would not affect their relationship with their primary care provider. Caregivers preferred print health education resources and were interested in also receiving health information via social media to learn more about the HPV vaccine and pharmacists' role in HPV vaccine administration. Pharmacies may serve as an additional site to increase HPV vaccine initiation and completion. Rural regions need additional health information about the HPV vaccine and pharmacists' abilities to administer this cancer prevention resource.
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Affiliation(s)
- Alexis M Koskan
- College of Health Solutions, Arizona State University, 425 N. 5th Street, Phoenix, AZ, USA.
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Bornstein J, Roux S, Kjeld Petersen L, Huang LM, Dobson SR, Pitisuttithum P, Diez-Domingo J, Schilling A, Ariffin H, Tytus R, Rupp R, Senders S, Engel E, Ferris D, Kim YJ, Tae Kim Y, Kurugol Z, Bautista O, Nolan KM, Sankaranarayanan S, Saah A, Luxembourg A. Three-Year Follow-up of 2-Dose Versus 3-Dose HPV Vaccine. Pediatrics 2021; 147:peds.2019-4035. [PMID: 33386332 DOI: 10.1542/peds.2019-4035] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/08/2020] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Human papillomavirus (HPV) antibody responses to the 9-valent human papillomavirus (9vHPV) vaccine among girls and boys (aged 9-14 years) receiving 2-dose regimens (months 0, 6 or 0, 12) were noninferior to a 3-dose regimen (months 0, 2, 6) in young women (aged 16-26 years) 4 weeks after last vaccination in an international, randomized, open-label trial (NCT01984697). We assessed response durability through month 36. METHODS Girls received 2 (months 0 and 6 [0, 6]: n = 301; months 0 and 12 [0, 12]: n = 151) or 3 doses (months 0,2, and 6 [0, 2, 6]: n = 301); boys received 2 doses ([0, 6]: n = 301; [0, 12]: n = 150); and young women received 3 doses ([0, 2, 6]: n = 314) of 9vHPV vaccine. Anti-HPV geometric mean titers (GMTs) were assessed by competitive Luminex immunoassay (cLIA) and immunoglobulin G-Luminex immunoassay (IgG-LIA) through month 36. RESULTS Anti-HPV GMTs were highest 1 month after the last 9vHPV vaccine regimen dose, decreased sharply during the subsequent 12 months, and then decreased more slowly. GMTs 2 to 2.5 years after the last regimen dose in girls and boys given 2 doses were generally similar to or greater than GMTs in young women given 3 doses. Across HPV types, most boys and girls who received 2 doses (cLIA: 81%-100%; IgG-LIA: 91%-100%) and young women who received 3 doses (cLIA: 78%-98%; IgG-LIA: 91%-100%) remained seropositive 2 to 2.5 years after the last regimen dose. CONCLUSIONS Antibody responses persisted through 2 to 2.5 years after the last dose of a 2-dose 9vHPV vaccine regimen in girls and boys. In girls and boys, antibody responses generated by 2 doses administered 6 to 12 months apart may be sufficient to induce high-level protective efficacy through at least 2 years after the second dose.
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Affiliation(s)
- Jacob Bornstein
- Department of Obstetrics and Gynecology, Galilee Medical Center and Azrieli Faculty of Medicine, Bar-Ilan University, Nahariya, Israel
| | - Surita Roux
- Synexus Clinical Research SA, Somerset West, Cape Town, South Africa
| | - Lone Kjeld Petersen
- Open Patient Data Explorative Network and Department of Obstetrics and Gynecology, Odense University Hospital, Odense, Denmark
| | - Li-Min Huang
- Department of Pediatrics, National Taiwan University Children's Hospital, Taipei City, Taiwan
| | - Simon R Dobson
- Department of Pediatrics, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Punnee Pitisuttithum
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Nakhon Pathom, Thailand
| | - Javier Diez-Domingo
- Vaccine Research Department, Foundation for the Promotion of Health and Biomedical Research of Valencia Region - Public Health, Valencia, Spain
| | - Andrea Schilling
- Department of Obstetrics and Gynecology, Facultad de Medicina Clinica Alemana, Universidad del Desarrollo, Santiago, Chile
| | - Hany Ariffin
- University of Malaya Medical Centre, Kuala Lumpur, Malaysia
| | - Richard Tytus
- Hamilton Medical Research Group, Hamilton, Ontario, Canada
| | - Richard Rupp
- The University of Texas Medical Branch, Galveston, Texas
| | | | - Eli Engel
- Bayview Research Group, Valley Village, California
| | - Daron Ferris
- Department of Obstetrics and Gynecology, Medical College of Georgia, Augusta University, Augusta, Georgia
| | - Yae-Jean Kim
- Department of Pediatrics, Samsung Medical Center, School of Medicine, Sungkyunkwan University, Seoul, Republic of Korea
| | - Young Tae Kim
- Department of Obstetrics and Gynecology, College of Medicine, Yonsei University, Seoul, Republic of Korea
| | - Zafer Kurugol
- Division of Infectious Disease, Department of Pediatrics, Faculty of Medicine, Ege University, Izmir, Turkey; and
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