HPV vaccine - the global perspective - National Immunisation Conference Robb Butler - HSE
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National Immunisation Conference Dublin, 25 May 2018 HPV vaccine – the global perspective Robb Butler Vaccine-preventable Diseases and Immunization WHO Regional Office for Europe
Presentation outline • Burden of HPV‐related diseases • WHO position on HPV vaccines • HPV vaccines safety • Introduction of HPV vaccine globally and in WHO European Region • Early impact of HPV vaccines
Estimated cervical cancer incidence and mortality worldwide, 2012 Estimated age‐standardized rates per 100,000 Source: Globocan, 2012
Human papillomavirus type distribution in invasive cervical cancer 2/4-valent 16 60.6 vaccines direct 18 10.2 protection 45 5.9 2/4-valent 9-valent 33 3.8 vaccines vaccines cross- direct protection protection 31 3.7 52 2.8 58 2.3 0 20 40 60 80 % Serrano at al., 2015
WHO Position paper on HPV vaccine (WER May, 2017) (www.who.int/immunization/documents/positionpapers/en/) HPV vaccines should be included in national immunization programmes HPV vaccines should be introduced as part of a comprehensive strategy to prevent cervical cancer and other diseases caused by HPV Primary target group: girls aged 9–14 years, prior to becoming sexually active Secondary target group: females aged ≥15 years or males (if feasible, affordable, cost‐effective) Multiple age cohorts (9‐18 years old) – faster and greater population impact
To date GACVS has reviewed the following safety issues related to the HPV vaccine: • Adverse events coinciding with pregnancy • Aluminium adjuvant used in the 4vHPV vaccine • Syncope and anaphylaxis • Venous thromboembolism and stroke ; • Autoimmune conditions (MS and Guillain‐Barre) and cerebral vasculitis • Complex regional pain (CRPS) and / or other conditions of chronic pain syndrome. y • Postural orthostatic tachycardia y syndrome ( ) (POTS)
WHO Global Advisory Committee on Vaccine Safety Statement, June 2017 • Over 270 million doses of HPV vaccine distributed since 2006 • Safety studies include million persons • Wide range of outcomes was compared in vaccinated an unvaccinated subjects http://www.who.int/vaccine_safety/committee/topics/hpv/June_2017/en/
WHO Global Advisory Committee on Vaccine Safety Statement, June 2017 (Cont’d) • Risk of anaphylaxis was characterized as 1.7 cases per million doses • Syncope was established as a common stress-related reaction to injection • No other adverse reactions have been identified and GACVS considers HPV vaccines to be extremely safe • However, attention continued to focus on spurious case reports and unsubstantiated allegations which have negative impact on coverage will result in real harm
Countries with HPV vaccine in the national immunization 0 programme, May 2018 1,200 2,400 4,800 Kil Introduced* to date (79 countries or 40.7%) * Includes partial introduction Not Available, (115 countries or 59.3%) Not Introduced/No Plans Data source: WHO/IVB Database, Map production Immunization Vaccines and Biologicals (IVB), The boundaries and names shown and the designations used on this map do not imply the expression of any opinion whatsoever on the part of the World Health Organization concerning the legal status of World Health Organization any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. Dotted lines on maps represent approximate border lines for which there may not yet be full agreement. ©WHO 2018. All rights reserved.
Introduction of HPV vaccine in WHO European Region, 2017 Source: WHO/UNICEF JRF Russian Federation implement HPV vaccination in some regions
Elements of successful introductions • Transparent and inclusive decision making process • Political commitment • Effective communication tailored to the needs of target audiences • Education and training of medical workers • Setting up coverage targets and monitoring coverage rates • Building resilience of immunization programmes, including capacity to timely and effectively respond to vaccine safety concerns, rumours, and anti-HPV lobbies / campaigns
The vaccines are very effective: in the real world Proportion of Australian born women diagnosed as having genital warts at first visit Against Genital Warts See also • Bauer et al Am J Pub Health 2012 • Leval et al JID 2012 • Smith et al JID 2014 • Baandrup et al STD 2013 • Chow et al STI 2014 • Howell-Jones et al JID 2013 Females
Trends in rates of histologically-confirmed high-grade cervical abnormalities by age, Victoria, Australia, 2000-2014
HPV prevalence pre and post vaccination, Percentage of women positive for any HPV Scotland Kavanagh K, Pollock KG, Cuschieri K, Palmer T, Cameron RL, Bhatia R, Moore C, Cubie H, Cruickshank M, Robertson C. Lancet Infect Dis. 2017 Sep 28. pii: S1473‐3099(17)30468‐1
Percentage of 20-year old women diagnosed with CIN 2/CIN3+ by birth cohort year (1.0) (4.2) (35.6) (65.2) (69.3) (70.1) (86.5) (Vaccine uptake 3‐doses) Slide: M. Cruickshank, Conference on HPV vaccine, MDA, 2018
Comprehensive approach to cervical cancer prevention and control INTEGRATION INTEGRATION
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