Journal
VACCINE
Volume 31, Issue 37, Pages 3962-3971Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.vaccine.2013.06.008
Keywords
Vaccination; Human papillomavirus; Cost-effectiveness; Cervical cancer; Adult; Belgium
Categories
Funding
- GlaxoSmithKline Biologicals SA
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Background: Vaccination against human papillomavirus (HPV) to prevent cervical cancer (CC) primarily targets young girls before sexual debut and is cost-effective. We assessed whether vaccination with the HPV-16/18 AS04-adjuvanted vaccine added to screening remains cost-effective in females after sexual debut compared to screening alone in Belgium. The role of protection against non-HPV-16/18 was also investigated. Methods: A published Markov cohort model was adapted to Belgium. The model replicated the natural history of HPV infection, the effects of screening, and vaccination. Vaccine efficacy (VE) included non-HPV-16/18 protection based on the PATRICIA clinical trial data. Pre- and post-HPV exposure VE were differentiated. Lifetime vaccine protection was assumed. Input data were obtained from literature review, national databases and a Delphi panel. Costing was from a healthcare payer perspective. Costs were discounted at 3% and effects at 1.5%. The incremental cost-effectiveness ratio (ICER) per quality-adjusted life-year (QALY) gained and the number of lesions prevented with vaccination from age 12 to 40 was evaluated. The specific effect of non-HPV-16/18 protection was investigated. Univariate sensitivity analysis was performed on key variables. Results: The model estimated that vaccinating a cohort of 100,000 girls at age 12 would prevent 646 CC cases over a lifetime (102 non-HPV-16/18) with an ICER of (sic)9171/QALY. Vaccinating at age 26 would prevent 340 CC cases (40 non-HPV-16/18) with an ICER of (sic)17,348/QALY and vaccinating at age 40 would prevent 146 CC cases (17 non-HPV-16/18) with an ICER of (sic)42,847/QALY. The ICER remained under the highly cost-effective threshold (1xGDP/capita) until age 33 years and under the cost-effective threshold (3xGDP/capita) beyond age 40. Conclusion: Extending HPV vaccination to females post-sexual debut could lead to a substantial reduction in CC-related burden and would be cost-effective in Belgium. (C) 2013 The Authors. Published by Elsevier Ltd. All rights reserved.
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