Increased risk of second cancers at sites associated with HPV after a prior HPV-associated malignancy, a systematic review and meta-analysis
- PMID: 30482913
- PMCID: PMC6342987
- DOI: 10.1038/s41416-018-0273-9
Increased risk of second cancers at sites associated with HPV after a prior HPV-associated malignancy, a systematic review and meta-analysis
Abstract
Background: High-risk human papilloma viruses (HPV) are a causative agent of anogenital and oropharyngeal cancers. Patients treated for a preinvasive or invasive HPV-associated cancer may be at increased risk of a second such malignancy.
Methods: We performed a systematic review and random effects meta-analysis to estimate the risk of HPV-associated cancer after prior diagnosis. Studies reporting second cancers at anogenital and oropharyngeal sites after prior diagnoses (preinvasive/invasive HPV-associated cancer) were identified. Studies reporting standardised incidence ratios (SIRs) were included in formal meta-analyses of second cancer risk. (PROSPERO ID: CRD42016046974).
Results: Searches returned 5599 titles, including 60 unique, eligible studies. Thirty-two (98 comparisons) presented SIRs for second cervical, anal, vulvo-vaginal, penile, and/or oropharyngeal cancers, included in the meta-analyses. All studies (and 95/98 comparisons) reported increased cancers in the population with previous HPV-associated cancer when compared to controls. Pooled SIRs for second primary cancers ranged from 1.75 (95% CI 0.66-4.67) for cervical cancer after primary anal cancer, to 13.69 (95% CI 8.56-21.89) for anal cancer after primary vulvo-vaginal cancer.
Conclusions: We have quantified the increased risk of second HPV-associated cancer following diagnosis and treatment for initial cancer or preinvasive disease. This has important implications for follow-up, screening, and future therapeutic trials.
Conflict of interest statement
The authors declare no competing interests.
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Comment in
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Reply to Comments on "Increased risk of second cancers at sites associated with HPV after a prior HPV-associated malignancy, a systematic review and meta-analysis".Br J Cancer. 2019 Apr;120(9):956. doi: 10.1038/s41416-019-0440-7. Epub 2019 Mar 26. Br J Cancer. 2019. PMID: 30911086 Free PMC article. No abstract available.
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Comment on "Increased risk of second cancers at sites associated with HPV after a prior HPV-associated malignancy, a systematic review and meta-analysis".Br J Cancer. 2019 Apr;120(9):954-955. doi: 10.1038/s41416-019-0437-2. Epub 2019 Mar 26. Br J Cancer. 2019. PMID: 30911087 Free PMC article. No abstract available.
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Comment on "Increased risk of second cancers at sites associated with HPV after a prior HPV-associated malignancy, a systematic review and meta-analysis".Br J Cancer. 2019 Apr;120(9):952-953. doi: 10.1038/s41416-019-0439-0. Epub 2019 Mar 26. Br J Cancer. 2019. PMID: 30911088 Free PMC article. No abstract available.