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Haas CB, Engels EA, Palefsky JM, Clarke MA, Kreimer AR, Luo Q, Pfeiffer RM, Qiao B, Pawlish KS, Monterosso A, Shiels MS. Severe anal intraepithelial neoplasia trends and subsequent invasive anal cancer in the United States. J Natl Cancer Inst 2024; 116:97-104. [PMID: 37632787 PMCID: PMC10777673 DOI: 10.1093/jnci/djad176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 07/13/2023] [Accepted: 08/23/2023] [Indexed: 08/28/2023] Open
Abstract
BACKGROUND Anal intraepithelial neoplasia grade III is a precursor to squamous cell carcinoma of the anus for which rates are nearly 20-fold higher in people with HIV than in the general population in the United States. We describe trends in anal intraepithelial neoplasia grade III diagnosis and risk of squamous cell carcinoma of the anus following anal intraepithelial neoplasia grade III by HIV status and sex. METHODS We used data from a population-based linkage between cancer and HIV registries in 11 US states; Puerto Rico; and Washington, DC, during 1996-2019. We identified all individuals with a diagnosis of anal intraepithelial neoplasia grade III and determined their HIV status. We estimated the average annual percentage change of anal intraepithelial neoplasia grade III using Poisson regression stratified by HIV status and sex. We estimated the 5-year cumulative incidence of squamous cell carcinoma of the anus following an anal intraepithelial neoplasia grade III diagnosis stratified by sex, HIV status, and prior AIDS diagnosis. RESULTS Among people with HIV, average annual percentage changes for anal intraepithelial neoplasia grade III were 15% (95% confidence interval [CI] = 12% to 17%) per year among females and 12% (95% CI = 11% to 14%) among males. Average annual percentage changes for those without HIV were 8% (95% CI = 7% to 8%) for females and 8% (95% CI = 6% to 9%) for males. Among people with HIV, a prior AIDS diagnosis was associated with a 2.7-fold (95% CI = 2.23 to 3.40) and 1.9-fold (95% CI = 1.72 to 2.02) increased risk of anal intraepithelial neoplasia grade III diagnosis for females and males, respectively. Five-year cumulative incidence of squamous cell carcinoma of the anus following anal intraepithelial neoplasia grade III for people with HIV with a prior AIDS diagnosis were 3.4% and 3.7% for females and males, respectively. CONCLUSIONS Rates of anal intraepithelial neoplasia grade III diagnoses have increased since 1996, particularly for people with HIV, likely influenced by increased screening. A prior AIDS diagnosis was strongly associated with risk of anal intraepithelial neoplasia grade III diagnosis.
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Affiliation(s)
- Cameron B Haas
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Eric A Engels
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Joel M Palefsky
- Department of Medicine, University of California, San Francisco, CA, USA
| | - Megan A Clarke
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Aimée R Kreimer
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Qianlai Luo
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Ruth M Pfeiffer
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Baozhen Qiao
- New York State Department of Health, Albany, NY, USA
| | | | | | - Meredith S Shiels
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
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Kaufman E, Williamson T, Mayrand MH, Burchell AN, Klein M, Charest L, Rodrigues-Coutlée S, Coutlée F, de Pokomandy A. Identifying risk factors for prevalent anal human papillomavirus type 16 infection in women living with HIV. PLoS One 2022; 17:e0268521. [PMID: 35587503 PMCID: PMC9119520 DOI: 10.1371/journal.pone.0268521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 05/02/2022] [Indexed: 11/19/2022] Open
Abstract
Background Women living with HIV (WLHIV) have a high risk of anal cancer. Identifying risk factors for anal HPV 16 infection, the most significant risk factor for anal cancer, is essential for prevention and screening strategies. Methods In the EVVA Cohort study, 151 WLHIV had cervical and anal HPV testing with genotyping every 6 months for 2 years, while demographic and clinical data were collected via questionnaires and chart reviews. Here, we present results of baseline data analyzed using multivariable logistic regression. Results Among 150 women with adequate HPV test results at baseline, HPV 16 DNA was detected anally in 23 (15.3%; 95%CI:10.4–22.1) and cervically in 5 (3.3%; 95%CI:1.4–7.8). In multivariable analysis, current smoking (OR = 6.0; 95%CI: 1.5–23.9), nadir CD4 count ≤ 200 cells/μL (OR = 8.4; 95%CI: 2.0–34.3), prevalent cervical HPV 16 (OR = 14.7; 95%CI: 1.0–222.5) and anogenital herpes in previous 6 months (OR = 9.8, 95%CI: 1.7–56.8) were associated with prevalent anal HPV 16. Conclusions Knowledge of risk factors can help identify WLHIV at greatest risk of anal HPV 16 infection and, potentially, developing subsequent anal cancer. Identification of the subgroup of these women in whom HPV 16 persists could be an early step in the algorithm of anal cancer screening.
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Affiliation(s)
- Elaina Kaufman
- Department of Family Practice, St. Paul’s Hospital Site, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
- Department of Family Medicine, Faculty of Medicine, McGill University, Montreal, QC, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Tyler Williamson
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Marie-Hélène Mayrand
- Département d’Obstétrique-Gynécologie et Médecine Sociale et Préventive, Centre Hospitalier de l’Université de Montréal (CHUM) and Université de Montréal, Montreal, QC, Canada
| | - Ann N. Burchell
- Department of Family and Community Medicine and MAP Centre for Urban Health Solutions, St. Michael’s Hospital, Unity Health Toronto and Department of Family and Community Medicine, Faculty of Medicine, University of Toronto, ON, Canada
| | - Marina Klein
- Chronic Viral Illness Service, McGill University Health Centre (MUHC), Montreal, QC, Canada
| | | | - Sophie Rodrigues-Coutlée
- Laboratoire de Virologie Moléculaire, Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CHUM), CHUM et Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC, Canada
| | - François Coutlée
- Chronic Viral Illness Service, McGill University Health Centre (MUHC), Montreal, QC, Canada
- Laboratoire de Virologie Moléculaire, Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CHUM), CHUM et Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC, Canada
| | - Alexandra de Pokomandy
- Department of Family Medicine, Faculty of Medicine, McGill University, Montreal, QC, Canada
- Chronic Viral Illness Service, McGill University Health Centre (MUHC), Montreal, QC, Canada
- * E-mail:
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Barroso LF, Stier EA, Hillman R, Palefsky J. Anal Cancer Screening and Prevention: Summary of Evidence Reviewed for the 2021 Centers for Disease Control and Prevention Sexually Transmitted Infection Guidelines. Clin Infect Dis 2022; 74:S179-S192. [PMID: 35416975 DOI: 10.1093/cid/ciac044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In June 2019 the Centers for Disease Control and Prevention (CDC) convened an advisory group to assist in development of the 2021 CDC sexually transmitted infections (STI) guidelines. The advisory group on anal cancer screening and prevention met to formulate key questions in this field. The group examined published literature and abstracts to assess evidence and give recommendations for development of the CDC guidelines. This article summarizes key questions, evidence, recommendations, and areas for further research for the screening, diagnosis, and prevention of anal cancer.
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Affiliation(s)
- Luis F Barroso
- Internal Medicine/Infectious Diseases, Wake Forest University Health Sciences, Winston-Salem, North CarolinaUSA
| | - Elizabeth A Stier
- Obstetrics and Gynecology, Boston University School of Medicine, Boston Medical Center, Boston, MassachusettsUSA
| | - Richard Hillman
- Dysplasia and Anal Cancer Services, St Vincent's Hospital, Darlinghurst, Sydney, Australia
| | - Joel Palefsky
- Infectious Diseases, University of California, San Francisco, CaliforniaUSA
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Cachay ER, Hasteh F, Mathews WC. Using computer-assisted content analysis to advance anal dysplasia natural history research. AIDS 2022; 36:409-413. [PMID: 34750293 PMCID: PMC8795475 DOI: 10.1097/qad.0000000000003123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
OBJECTIVE Our study aim was to validate the use of computer-aided narrative content analysis in the extraction of standard diagnostic categories using an archived cytology database that included individually overread reference classification. DESIGN A retrospective analysis of narrative anal cytology results collected on HIV-infected patients at the University of California, San Diego between January and December 2001. METHODS We used computer-assisted content analysis extraction methodology using Wordstat 8.0 (Provalis Research) that operated using a classification dictionary that we developed for the following diagnostic categories: NAMC, ASCUS, LSIL, HSIL. We compared its accuracy to a physician overread manually extracted method: that classified each report into the most severe diagnostic category referenced in the narrative report. Agreement between content analysis mapped diagnostic categories and the reference category was evaluated using kappa agreement. RESULTS During 2001, 901 patients underwent 997 anal cytological examinations as routine screening. By reference diagnostic category: 54 (5.4%) were unsatisfactory, 460 (46.1%) were NAMC, 291 (29.2%) were ASCUS, 131 (13.1%) were LSIL, and 61 (6.1%) were HSIL. Computer-aided content analysis extracted a single diagnosis from each report in 963 (96.2%) cases and two diagnoses in 38 (3.8%) cases. The Kappa agreement was 0.96 (0.019 s.e.). There were 29 cases classified ASCUS by reference category but LSIL by adjudicated content analysis. A focused review indicated that the over reader assigned reference category was in error. CONCLUSION Computer-aided narrative content analysis of anal cytology results yielded accurate and time-efficient classification into meaningful diagnostic categories that can be used to evaluate screening programs and modeling natural history.
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Affiliation(s)
- Edward R Cachay
- Department of Medicine, Division of Infectious Diseases and Global Public Health
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Intra-Anal Imiquimod Cream against Human Papillomavirus Infection in Men Who Have Sex with Men Living with HIV: A Single-Arm, Open-Label Pilot Study. J Clin Med 2021; 10:jcm10194477. [PMID: 34640496 PMCID: PMC8509144 DOI: 10.3390/jcm10194477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/23/2021] [Accepted: 09/25/2021] [Indexed: 11/16/2022] Open
Abstract
Men who have sex with men (MSM) living with HIV have a high prevalence and incidence of anal high-risk human papillomavirus (hrHPV) and anal cancer. We conducted an open-label, single-arm pilot study to examine the tolerability of imiquimod cream among MSM aged ≥18 years, living with HIV, who tested positive for anal hrHPV at Melbourne Sexual Health Centre between April 2018 and June 2020. We instructed men to apply 6.25 mg imiquimod intra-anally and peri-anally 3 doses per week for 16 weeks (period 1) and then one dose per week for a further 48 weeks (period 2). Twenty-seven MSM enrolled in period 1 and 24 (86%) applied at least 50% of doses. All men reported adverse events (AEs), including 39.5% grade 1, 39.5% grade 2, and 21% grade 3 AEs on at least one occasion. Eighteen MSM (67%) temporarily stopped using imiquimod during period 1, most commonly due to local AEs (n = 11) such as irritation and itching. Eighteen MSM continued in period 2 and all applied at least 50% of doses with no treatment-limiting AEs reported. Imiquimod 3 doses per week caused local AEs in most men and was not well tolerated. In contrast, once-a-week application was well tolerated over 48-weeks with no treatment-limiting AEs.
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Abstract
Abstract
Background Anal canal carcinoma is a rare neoplasm, representing 2% of the digestive tumors, and the most common is squamous cell carcinoma, with an increasing incidence.
Objective The study aims to elucidate the pathogenesis of an increasingly prevalent disease, as well as to update treatment and prognosis.
Methods A literature search in Pubmed database, including articles from 2005 to 2015 and cross-research articles with the initial research.
Results Several studies prove the role of HPV as a major risk factor in the development of squamous cell carcinoma of anal canal, as well as a greater prevalence of this neoplasia in HIV-positive people and in those who practice receptive anal intercourse. In the last two decades chemoradiotherapy remains the treatment of choice, and abdominoperineal resection is reserved for those cases of treatment failure or recurrence. Evidence advances in order to adapt the treatment to each patient, taking into account individual prognostic factors and biological tumor characteristics.
Conclusions Squamous cell carcinoma of the anal canal is a neoplasm associated with HPV; therefore, screening and vaccination programs of male individuals, by way of prevention, should be started. Many studies are needed in order to achieve development in the treatment as well as in the evaluation of the biological characteristics of the tumor.
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Nowak RG, Schumaker LM, Ambulos NP, Ndembi N, Dauda W, Nnaji CH, Mitchell A, Mathias TJ, Jibrin P, Darragh TM, Olaomi O, Crowell TA, Baral SD, Charurat ME, Bentzen SM, Palefsky JM, Cullen KJ. Multiple HPV infections among men who have sex with men engaged in anal cancer screening in Abuja, Nigeria. PAPILLOMAVIRUS RESEARCH 2020; 10:100200. [PMID: 32492573 PMCID: PMC7287273 DOI: 10.1016/j.pvr.2020.100200] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 05/05/2020] [Accepted: 05/07/2020] [Indexed: 02/08/2023]
Abstract
Background Anal precancers and cancers can be detected during screening with high-resolution anoscopy (HRA). The sensitivity of HRA depends on the burden and duration of human papillomavirus (HPV) among those screened as well as anoscopist proficiency, which is highly correlated with prior screening experience. Our objective was to compare the identification and type of HPV and the likelihood of HRA-detected precancer for men who have sex with men (MSM) undergoing their first HRA-screening in Nigeria. Methods MSM were recruited from an HIV test-and-treat cohort, TRUST/RV368, into a new anal cancer screening program. Anal swabs obtained during screening underwent Ion Torrent next-generation sequencing using barcoded HPV PCR broad-spectrum primers 5+/6+ to detect up to 161 HPVs. All high-risk (HR) HPVs and the most abundant low-risk (LR)-HPVs were evaluated as type-specific infections with some categorized as belonging to a multiple infection. HRA screening results included benign, low-grade squamous intraepithelial lesions (LSIL), or HSIL as detected by cytology or histology. Multivariable logistic regression was used to assess the association of HPV and other cofactors with any SIL. Results Among 342 MSM, 60% were HIV-infected, 89% were under 35 years of age, and 51% had 8 or more years since anal coital debut. Of those with SIL, 89% had LSIL and only 11% had HSIL. Prevalence of any HPV and high-risk (HR)-HPV was 92% and 74%, respectively. The most prevalent genotypes in rank order were HPV6 (31%), HPV16 (23%), HPV42 (20%), HPV11 (18%), HPV45 (18%), and HPV51 (17%). For multiple HR-HPVs, 31% had a single HR-HPV, 32% had 2-3, and 10% had 4 or more. Low-risk HPVs, type 6 and/or 11, were common (42%) and were significantly associated with SIL (adjusted odds ratio [aOR]:1.8, 95% confidence interval [CI]: 1.1–3.1) together with perianal warts (aOR:6.7, 95% CI: 3.3–13.5). In contrast, HR-HPV and multiple HR-HPVs were not significantly associated with SIL (all p > 0.05). Conclusions Detection of HSIL was low. Although HR-HPV was abundant, HSIL development also depends on the duration of HR-HPV infections and the anoscopist's level of experience. As our cohort ages and the anoscopist becomes more skilled, detection of HSIL will likely improve.
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Affiliation(s)
- Rebecca G Nowak
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA.
| | - Lisa M Schumaker
- University of Maryland Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Nicholas P Ambulos
- University of Maryland Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA
| | | | - Wuese Dauda
- Institute of Human Virology Nigeria, Abuja, Nigeria
| | | | - Andrew Mitchell
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Trevor J Mathias
- University of Maryland Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA
| | | | - Teresa M Darragh
- Department of Pathology, University of California, San Francisco, CA, USA
| | | | - Trevor A Crowell
- U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD, USA; Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, USA
| | - Stefan D Baral
- Johns Hopkins School of Public Health, Baltimore, MD, USA
| | - Manhattan E Charurat
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Søren M Bentzen
- University of Maryland Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Joel M Palefsky
- Department of Medicine, University of California, San Francisco, CA, USA
| | - Kevin J Cullen
- University of Maryland Marlene and Stewart Greenebaum Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA
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Kelly H, Chikandiwa A, Alemany Vilches L, Palefsky JM, de Sanjose S, Mayaud P. Association of antiretroviral therapy with anal high-risk human papillomavirus, anal intraepithelial neoplasia, and anal cancer in people living with HIV: a systematic review and meta-analysis. Lancet HIV 2020; 7:e262-e278. [PMID: 32109408 DOI: 10.1016/s2352-3018(19)30434-5] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 12/12/2019] [Accepted: 12/19/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND The effect of antiretroviral therapy (ART) on the natural history of anal high-risk HPV and anal lesion progression is not well established. We reviewed the association of ART and other HIV-related factors on anal HPV infection, anal intraepithelial neoplasia (AIN), and anal cancer among people living with HIV. METHODS For this systematic review and meta-analysis, we searched MEDLINE and EMBASE for studies published between Jan 1, 1996, and Oct 30, 2019, that reported the association of HIV-related exposures (ART or highly active ART [HAART], HIV-RNA plasma viral load [PVL], and nadir or current CD4 cell count) with outcomes of anal high-risk HPV prevalence, incidence, and persistence; prevalence, incidence, progression, or regression of anal histological and cytological abnormalities; and anal cancer incidence. Effect estimates were extracted whenever available; otherwise, they were calculated from raw data. We assessed the risk of bias of included studies using the Newcastle-Ottawa scale, and random-effects meta-analyses were done to examine heterogeneity using the I2 statistic. This study is registered on the PROSPERO database, CRD42018007271. FINDINGS We identified 6777 studies, of which 5377 were excluded before full-text review. 122 studies providing estimates for 130 distinct populations matched the inclusion criteria. The populations comprised 417 006 people living with HIV (women, men who have sex with men, and men who have sex with women). 41 (32%) population estimates were not stratified by sex or sexual orientation. People living with HIV receiving ART had 35% lower high-risk HPV prevalence than ART-naive people (crude odds ratio [OR] 0·65, 95% CI 0·54-0·79; I2 12·1%, p=0·31) in 18 studies, and prolonged ART use was associated with a 10% reduction per year in high-risk HPV prevalence in two studies (adjusted OR 0·90, 0·85-0·95; I2 0%, p=0·88). People living with HIV with undetectable PVL had lower HSIL-AIN2+ prevalence than those with detectable PVL (crude OR 0·84, 0·72-0·98; I2 0%, p=0·80) in 16 studies, particularly if sustained for more than 1 year (crude OR 0·62, 0·47-0·81; I2 0%, p=0·51). ART was not associated with anal cancer incidence when adjusted for years living with HIV in three studies (adjusted hazard ratio [HR] 1·11, 95% CI 0·68-1·80; I2 0%, p=0·57), but ART users with sustained undetectable HIV PVL had 44% lower risk of anal cancer than those without (adjusted HR 0·56, 0·44-0·70; I2 0%, p=0·94) and for each increase in nadir CD4 cell counts of 100 cells per μL, there was a 40% decrease in anal cancer incidence (crude HR 0·60, 0·46-0·78; I2 21·7%, p=0·26). INTERPRETATION Effective ART use and early initiation at high nadir CD4 counts might reduce anal high-risk HPV infection and anal cancer risk. Although most studies were cross-sectional in design and few adjusted for potential confounders, this analysis provides comprehensive estimates of the effect of ART and HIV-related factors on the natural history of anal HPV-related disease in people living with HIV. FUNDING EU Marie Skłodowska-Curie Actions programme.
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Affiliation(s)
- Helen Kelly
- Cancer Epidemiology Research Program, Catalan Institute of Oncology, Institut d'Investigació Biomèdica de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain; Clinical Research Department, London School of Hygiene & Tropical Medicine, London, UK.
| | - Admire Chikandiwa
- Wits Reproductive Health and HIV Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Laia Alemany Vilches
- Cancer Epidemiology Research Program, Catalan Institute of Oncology, Institut d'Investigació Biomèdica de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Joel M Palefsky
- Department of Infectious Diseases, School of Medicine, University of California, San Francisco, CA, USA
| | - Silvia de Sanjose
- Consorcio de Investigación Biomédica en Red de Epidemiología y Salud Pública, Barcelona, Spain; PATH, Seattle, WA, USA
| | - Philippe Mayaud
- Clinical Research Department, London School of Hygiene & Tropical Medicine, London, UK
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Nowak RG, Nnaji CH, Dauda W, Mitchell A, Olaomi O, Jibrin P, Crowell TA, Baral SD, Ndembi N, Charurat ME, Palefsky JM, Bentzen SM, Cullen KJ. Satisfaction with high-resolution anoscopy for anal cancer screening among men who have sex with men: a cross-sectional survey in Abuja, Nigeria. BMC Cancer 2020; 20:98. [PMID: 32024521 PMCID: PMC7003335 DOI: 10.1186/s12885-020-6567-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Accepted: 01/21/2020] [Indexed: 12/22/2022] Open
Abstract
Background Men who have sex with men (MSM) living with HIV are at increased risk for anal cancer. We evaluated satisfaction with first-time anal cancer screening using high resolution anoscopy (HRA) as a cross sectional survey among men who have sex with men (MSM) attending a community-engaged clinic in Abuja, Nigeria. Methods Between March and August 2017, 342 MSM underwent screening and 307 (89%) completed a satisfaction survey that evaluated 8 domains related to expectations, convenience, staff interpersonal skills, physical surroundings, technical competence, pain/discomfort, general satisfaction, and intention to re-screen if symptomatic. The 22-item questionnaire used 5-point Likert scales ranging from 1 (strongly disagree) to 5 (strongly agree). For each domain, responses to specific items were averaged, aggregated, and converted to a 100-point scaled score (SS) with 25 and 75 corresponding to disagree and agree, respectively. Results Median age was 24 years (interquartile range [IQR]: 22–28), median years since anal coital debut was 7 (IQR: 4–12), and 58% (95% confidence interval [CI]: 52–64%) were living with HIV. Despite respondents reporting pre-procedure anxiety (SS:73), most were comfortable with the setting and procedure and reported overall satisfaction (SS:74–76). Willingness to undergo future screening had the lowest score (SS:69) within the general satisfaction domain. The lowest scoring domains were pain/discomfort (SS:57) and agreement to re-screen if symptomatic (SS:59), which correlated with lower overall satisfaction (p < 0.001). Domain responses did not differ by HIV infection after adjusting for multiple comparisons (p > 0.006) or number of anal biopsies (all p > 0.05). Conclusions Overall, HRA was satisfactory for those naïve to screening but moving forward necessitates monitoring levels of discomfort with pain scales and normalizing dialogue around clinical symptoms of anal cancer and overall anal health to sustain future screening.
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Affiliation(s)
- Rebecca G Nowak
- Division of Epidemiology and Prevention, Institute of Human Virology, University of Maryland School of Medicine, 725 W. Lombard Street, Baltimore, MD, 21201, USA. .,Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, USA. .,University of Maryland Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA.
| | | | - Wuese Dauda
- Institute of Human Virology Nigeria, Abuja, Nigeria
| | - Andrew Mitchell
- Division of Epidemiology and Prevention, Institute of Human Virology, University of Maryland School of Medicine, 725 W. Lombard Street, Baltimore, MD, 21201, USA
| | | | | | - Trevor A Crowell
- U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD, USA.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, USA
| | - Stefan D Baral
- Johns Hopkins School of Public Health, Baltimore, MD, USA
| | | | - Manhattan E Charurat
- Division of Epidemiology and Prevention, Institute of Human Virology, University of Maryland School of Medicine, 725 W. Lombard Street, Baltimore, MD, 21201, USA
| | - Joel M Palefsky
- Department of Medicine, University of California, San Francisco, CA, USA
| | - Søren M Bentzen
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, USA.,University of Maryland Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Kevin J Cullen
- University of Maryland Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA
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Risk of Invasive Anal Cancer in HIV-Infected Patients With High-Grade Anal Dysplasia: A Population-Based Cohort Study. Dis Colon Rectum 2019; 62:934-940. [PMID: 30888979 PMCID: PMC6613994 DOI: 10.1097/dcr.0000000000001384] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND The progression rate and predictors of anal dysplastic lesions to squamous cell carcinoma of the anus remain unclear. Characterizing these parameters may help refine anal cancer screening guidelines. OBJECTIVE This study aimed to determine the rate of progression of high-grade anal dysplasia to invasive carcinoma in HIV-infected persons. DESIGN Using the Surveillance, Epidemiology, and End Results database linked to Medicare claims from 2000 to 2011, we identified HIV-infected subjects with incident anal intraepithelial neoplasia III. To estimate the rate of progression of anal intraepithelial neoplasia III to invasive cancer, we calculated the cumulative incidence of anal cancer in this cohort. We then fitted Poisson models to evaluate the potential risk factors for incident anal cancer. SETTINGS This is a population-based study. PATIENTS Included were 592 HIV-infected subjects with incident anal intraepithelial neoplasia III. MAIN OUTCOME MEASURES The primary outcome measured was incident squamous cell carcinoma of the anus. RESULTS Study subjects were largely male (95%) with a median age of 45.7 years. Within the median follow-up period of 69 months, 33 subjects progressed to anal cancer. The incidence of anal cancer was 1.2% (95% CI, 0.7%-2.5%) and 5.7% (95% CI, 4.0%-8.1%) at 1 and 5 years, following a diagnosis of anal intraepithelial neoplasia III. Risk of progression did not differ by anal intraepithelial neoplasia III treatment status. On unadjusted analysis, black race (p = 0.02) and a history of anogenital condylomata (p = 0.03) were associated with an increased risk of anal cancer incidence, whereas prior anal cytology screening was associated with a decreased risk (p = 0.04). LIMITATIONS The identification of some incident cancer episodes used surrogate measures. CONCLUSIONS In our population-based cohort of HIV-infected subjects with long-term follow-up, the risk of progression from anal intraepithelial neoplasia III to anal squamous cell carcinoma was higher than reported in other studies and was not associated with the receipt of anal intraepithelial neoplasia III treatment. See Video Abstract at http://links.lww.com/DCR/A933.
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Anal Cancer Precursor Lesions in HIV-Infected Persons: Tissue Human Papillomavirus Type Distribution and Impact on Treatment Response. Dis Colon Rectum 2019; 62:579-585. [PMID: 30570548 DOI: 10.1097/dcr.0000000000001307] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND Data on tissue distribution of human papillomavirus types in anal high-grade squamous intraepithelial lesions are limited and the impact on treatment outcomes poorly understood. OBJECTIVE We aimed to investigate potential predictors of treatment failure after electrocautery ablation, including human papillomavirus type(s) isolated from index lesions. DESIGN This was a retrospective cohort study. SETTINGS The study was conducted at a tertiary academic referral center in New York City. PATIENTS Seventy-nine HIV-infected patients with a diagnosis of anal high-grade squamous intraepithelial lesions between January 2009 and December 2012 were included, and genomic DNA was extracted from biopsy tissue. MAIN OUTCOME MEASURES The prevalence of human papillomavirus types in index lesions and surveillance biopsies after electrocautery ablation were analyzed to evaluate treatment response. RESULTS Of 79 anal high-grade squamous intraepithelial lesions, 71 (90%) tested positive for ≥1 human papillomavirus type; 8 (10%) had no human papillomavirus detected. The most common type was 16 (39%), followed by 33 (15%). Human papillomavirus type 18 was seen in 3%. Sixty-one patients (77%) underwent electrocautery ablation and had subsequent surveillance biopsies. Surveillance biopsies yielded benign findings or low-grade squamous intraepithelial lesions in 31 (51%) of 61 and recurrent high-grade squamous intraepithelial lesions in 30 (49%) of 61 patients (mean follow-up: 35 mo). Ablation response did not differ significantly based on baseline demographics, smoking history, history of anogenital warts, mean CD4 T-cell count, antiretroviral-therapy use, and HIV viral load (<50 copies/mL). The recurrence of high-grade lesions was not significantly associated with high-risk human papillomavirus types detected in index lesions. LIMITATIONS Human papillomavirus genotyping in surveillance biopsies was not performed. CONCLUSIONS Anal high-grade squamous intraepithelial lesions in HIV-infected patients contain a wide range of human papillomavirus types, and individual lesions commonly harbor multiple types concomitantly. Recurrence of anal high-grade squamous intraepithelial lesions after electrocautery ablation occurs frequently and is not affected by high-risk human papillomavirus types. See Video Abstract at http://links.lww.com/DCR/A833.
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Dias Gonçalves Lima F, Viset JD, Leeflang MMG, Limpens J, Prins JM, de Vries HJC. The Accuracy of Anal Swab-Based Tests to Detect High-Grade Anal Intraepithelial Neoplasia in HIV-Infected Patients: A Systematic Review and Meta-analysis. Open Forum Infect Dis 2019; 6:ofz191. [PMID: 31123696 PMCID: PMC6524827 DOI: 10.1093/ofid/ofz191] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 04/12/2019] [Indexed: 12/11/2022] Open
Abstract
Background The incidence of high-risk human papillomavirus (HR-HPV)–induced anal cancer is increasingly problematic among HIV-positive patients. Anal cancer is preceded by precursor lesions, anal intraepithelial neoplasia (AIN). AIN detection requires high-resolution anoscopy, a cumbersome and time-consuming procedure. We aggregated evidence on anal swab–based tests to detect AIN in HIV-positive patients. Methods We searched MEDLINE and EMBASE for cross-sectional studies on AIN detection with anal cytology, HR-HPV DNA detection, HPV E6/E7 mRNA analysis, and P16INK4a and Ki-67 immunostaining. Summary estimates of sensitivity and specificity were calculated using bivariate logistic regression. Cytology was reported using the terms squamous intra-epithelial lesion (SIL) for AIN and high-grade SIL (HSIL) for high-grade AIN (HGAIN). Results We included 22 studies. Using cytology with a cutoff of any SIL to detect HGAIN, we detected a sensitivity of 82% (95% CI, 74%–87%) and specificity of 45% (95% CI, 44%–66%); with the cutoff of HSIL, the sensitivity was 44% (95% CI, 45%–67%) and the specificity was 79% (95% CI, 69%-87%). The sensitivity of HPV DNA to detect HGAIN was 91% (95% CI, 82%–95%) and the specificity was 27% (95% CI, 21%–33%). For MSM, the positive predictive value (PPV) of cytology with a cutoff of any SIL was 36% (95% CI, 23%–50%) and the negative predictive value (NPV) was 87% (95% CI, 78%–93%), whereas cytology with a cutoff of HSIL had a PPV of 62% (95% CI, 50%–73%) and an NPV of 78% (95% CI, 65%–87%). The PPV of HR-HPV DNA detection was 37% (95% CI, 20%–57%) and the NPV was 87% (95% CI, 79%–93%). Conclusions Given its sensitivity, cytology with a cutoff of any SIL could be considered as a triaging method, whereas cytology with a cutoff of HSIL had better specificity and could be used for quality assurance. HR-HPV DNA detection had poor specificity and PPV, making it unsuitable for triage.
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Affiliation(s)
| | - Janine D Viset
- Department of Dermatology, Amsterdam Institute for Infection and Immunity (AI&II), Amsterdam, the Netherlands
| | - Mariska M G Leeflang
- Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam Public Health Research Institute, Amsterdam, the Netherlands
| | - Jacqueline Limpens
- Medical Library, University of Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands
| | - Jan M Prins
- Department of Internal Medicine, University of Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands
| | - Henry J C de Vries
- Department of Dermatology, Amsterdam Institute for Infection and Immunity (AI&II), Amsterdam, the Netherlands.,STI Outpatient Clinic, Department of Infectious Diseases, Public Health Service of Amsterdam (GGD Amsterdam), Amsterdam, the Netherlands
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Wiley DJ, Hsu HK, Ganser MA, Brook J, Elashoff DA, Moran MG, Young SA, Joste NE, Mitsuyasu R, Darragh TM, Morris DH, Martínez-Maza OM, Detels R, Rao JY, Bolan RK, Shigeno ET, Rodriguez E. Comparison of nylon-flocked swab and Dacron swab cytology for anal HSIL detection in transgender women and gay, bisexual, and other men who have sex with men. Cancer Cytopathol 2019; 127:247-257. [PMID: 30913381 PMCID: PMC7108036 DOI: 10.1002/cncy.22114] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 01/22/2019] [Accepted: 02/04/2019] [Indexed: 11/06/2022]
Abstract
BACKGROUND An anal histological high-grade squamous intraepithelial lesion (hHSIL) is an anal cancer precursor. Experts recommend Dacron swab anal cytology as a primary screen for anal hHSILs, especially among human immunodeficiency virus-infected and -uninfected men who have sex with men (MSM). Studies have shown that Dacron cytology inaccurately predicts anal hHSILs and results in unnecessary diagnostic procedures. Nylon-flocked (NF) swabs have been shown to trap pathogens and cells well. Thus, this study compared test characteristics of anal cytology using NF and Dacron swab collection protocols to predict anal hHSILs. METHODS A single-visit, randomized clinical trial compared NF and Dacron swab anal cytology specimens to predict high-resolution anoscopy and biopsy-diagnosed anal hHSILs. Data for 326 gay men, bisexual men, other MSM, and male-to-female transgender women contributed descriptive and tabular statistics with which unadjusted and fully adjusted logistic regression models were constructed. The models estimated the odds of hHSILs, test accuracy (area under the curve [AUC]) and sensitivity, and specificity as well as the positive and negative predictive values of abnormal NF and Dacron cytology for predicting hHSILs. RESULTS In the fully adjusted model, the sensitivities for NF and Dacron cytology were nearly equal (48% vs 47%), but the specificity was higher with NF cytology (76% vs 69%). Comparisons of the areas under receiver operating characteristic curves showed that NF cytology alone predicted hHSILs better than the covariate model (AUC, 0.69 vs 0.63; P = .02), but NF and Dacron cytology comparisons showed no statistically significant differences (AUC, 0.69 vs 0.67; P = .3). CONCLUSIONS NF cytology and Dacron cytology provide modest sensitivity, but NF cytology has higher specificity and accuracy, and this is important for lowering the costs of population-based screening.
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Affiliation(s)
- Dorothy J Wiley
- School of Nursing, University of California Los Angeles, Los Angeles, California
| | - Hilary K Hsu
- School of Nursing, University of California Los Angeles, Los Angeles, California
| | - Martha A Ganser
- School of Nursing, University of California Los Angeles, Los Angeles, California
| | - Jenny Brook
- David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - David A Elashoff
- David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - Matthew G Moran
- School of Nursing, University of California Los Angeles, Los Angeles, California
- Desert AIDS Project, Palm Springs, California
| | - Stephen A Young
- Tricore Reference Laboratories, University of New Mexico, Albuquerque, New Mexico
| | - Nancy E Joste
- Tricore Reference Laboratories, University of New Mexico, Albuquerque, New Mexico
| | - Ronald Mitsuyasu
- David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - Teresa M Darragh
- Department of Pathology, University of California San Francisco, San Francisco, California
| | | | - Otoniel M Martínez-Maza
- David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
- Jonathan and Karen Fielding School of Public Health, University of California Los Angeles, Los Angeles, California
| | - Roger Detels
- Jonathan and Karen Fielding School of Public Health, University of California Los Angeles, Los Angeles, California
| | - Jian Yu Rao
- David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | | | - Eric T Shigeno
- School of Nursing, University of California Los Angeles, Los Angeles, California
| | - Ernesto Rodriguez
- School of Nursing, University of California Los Angeles, Los Angeles, California
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15
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Abstract
The prevalence of anal human papillomavirus (HPV) infection and anal high-grade squamous intraepithelial lesion (HSIL) remain high among HIV-infected individuals on effective antiretroviral therapy (ART). The incidence of HPV-related anal cancers has continued to increase since the introduction of ART. Therefore, ART may confer only limited benefit with respect to reducing the risk of anal HSIL and cancer. Efforts are in progress to define the efficacy of secondary prevention programs for prevention of anal cancer. In the modern ART era, anal cancer recurrence and survival outcomes are similar in HIV-infected and HIV-uninfected patients, but HIV-infected patients may experience more toxicities. This article reviews the current literature on HPV-associated anal cancer in the HIV-infected population, including epidemiology, screening, clinical characteristics, and treatment outcomes.
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Affiliation(s)
- Chia-Ching J Wang
- Division of Hematology/Oncology, Department of Medicine, Zuckerberg San Francisco General Hospital, San Francisco, CA, USA
- , 995 Potrero Avenue, Building 80, 4th Floor, San Francisco, CA, 94110, USA
| | - Joel M Palefsky
- Division of Infectious Diseases, Department of Medicine, University of California at San Francisco, San Francisco, CA, USA.
- , 513 Parnassus Ave, Med Sci Room 420E, Box 0654, San Francisco, CA, 94143, USA.
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Abstract
BACKGROUND Both ablation and expectant management of high-grade squamous intraepithelial lesions have been proposed. Expectant management would be reasonable if 1) the rate of high-grade squamous epithelial lesion progression to anal squamous cell carcinoma were low, and 2) anal squamous cell carcinoma arising under surveillance had a better prognosis than anal squamous cell carcinoma presenting without an identified precursor. OBJECTIVE This study aims to quantify aspects of high-grade squamous epithelial lesion/anal squamous cell carcinoma clinical evolution in a surgical practice. DESIGN This is a retrospective cohort study. SETTINGS This study was performed in 1 colorectal surgeon's practice over a 20-year period. PATIENTS Consecutive patients with high-grade squamous intraepithelial lesion and anal squamous cell carcinoma were included. MAIN OUTCOME MEASURES We looked at the rate and timing of progression to anal squamous cell carcinoma, and the stage, treatment, and outcome of anal squamous cell carcinoma. We reviewed a comparison group of HIV-positive patients presenting de novo with anal squamous cell carcinoma (no prior history of high-grade squamous intraepithelial lesion). RESULTS With consideration of only HIV-positive patients, 341 patients had a mean 5.6 years follow-up from high-grade squamous intraepithelial lesion diagnosis to the most recent documented anal examination. Twenty-four of these surveillance patients developed anal squamous cell carcinoma, yielding a progression rate of 1.3% per patient-year. Mean follow-up was 7.3 years from the initial cancer diagnosis to the most recent contact. Forty-seven patients who presented de novo with anal squamous cell carcinoma developed 74 lesions, with a mean follow-up of 5.7 years after initial diagnosis. This de novo group had higher anal squamous cell carcinoma-specific mortality (3% per patient-year vs 0.05%). Our study did not show a significantly higher rate of high stage (stage III or IV) at anal squamous cell carcinoma diagnosis in the de novo group in comparison with the surveillance group (25.5% vs 8.3% (p = 0.09)). LIMITATIONS This study was retrospective in nature and had a predominately male population. CONCLUSIONS The progression of untreated high-grade squamous intraepithelial lesion to anal squamous cell carcinoma approximates 1% per patient-year. Anal squamous cell carcinoma developing under surveillance tends to be of an earlier stage and to require fewer major interventions than anal squamous cell carcinoma presenting de novo. Cancer-specific mortality was lower for malignancies that developed under surveillance. We suggest that expectant management of patients with high-grade squamous intraepithelial lesion is a rational strategy for preventing anal cancer morbidity. See Video Abstract at http://links.lww.com/DCR/A699.
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18
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The American Society of Colon and Rectal Surgeons Clinical Practice Guidelines for Anal Squamous Cell Cancers (Revised 2018). Dis Colon Rectum 2018; 61:755-774. [PMID: 29878949 DOI: 10.1097/dcr.0000000000001114] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Blaser N, Bertisch B, Kouyos RD, Calmy A, Bucher HC, Cavassini M, Estill J, Keiser O, Egger M. Impact of screening and antiretroviral therapy on anal cancer incidence in HIV-positive MSM. AIDS 2017; 31:1859-1866. [PMID: 28746085 DOI: 10.1097/qad.0000000000001546] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND The incidence of anal cancer is high in HIV-positive MSM. We modeled the impact of screening strategies and combination antiretroviral therapy (cART) coverage on anal cancer incidence in Switzerland. METHODS Individual-based, dynamic simulation model parameterized with Swiss HIV Cohort Study and literature data. We assumed all men to be human papillomavirus infected. CD4 cell count trajectories were the main predictors of anal cancer. From 2016 we modeled cART coverage either as below 100% (corresponding to 2010-2015) or as 100%, and the following four screening strategies: no screening, yearly anal cytology (Papanicolaou smears), yearly anoscopy and targeted anoscopy 5 years after CD4 count dropped below 200 cells/μl. RESULTS Median nadir CD4 cell count of 6411 MSM increased from 229 cells/μl during 1980-1989 to 394 cells/μl during 2010-2015; cART coverage increased from 0 to 83.4%. Modeled anal cancer incidence peaked at 81.7/100 000 in 2009, plateaued 2010-2015 and will decrease to 58.7 by 2030 with stable cART coverage, and to 52.0 with 100% cART coverage. With yearly cytology, incidence declined to 38.2/100 000 by 2030, with yearly anoscopy to 32.8 and with CD4 cell count guided anoscopy to 51.3. The numbers needed to screen over 15 years to prevent one anal cancer case were 384 for yearly cytology, 313 for yearly anoscopy and 242 for CD4 cell count-dependent screening. CONCLUSION Yearly screening of HIV-positive MSM may reduce anal cancer incidence substantially, with a number needed to screen that is comparable with other screening interventions to prevent cancer.
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Human papillomavirus-associated anal and cervical cancers in HIV-infected individuals: incidence and prevention in the antiretroviral therapy era. Curr Opin HIV AIDS 2017; 12:26-30. [PMID: 27828801 DOI: 10.1097/coh.0000000000000336] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW The incidence of human papillomavirus (HPV)-related cancers has increased (anal cancer) or not declined (cervical cancer) since the introduction of antiretroviral therapy (ART). This article reviews recent data on incidence and prevention efforts for HPV-related cancers in the ART era. RECENT FINDINGS ART may confer some benefit with respect to reducing the risk of anal high-grade squamous intraepithelial lesion and cancer, but the degree of that benefit appears to be limited. The prevalence of anal HPV infection, anal high-grade squamous intraepithelial lesion, and anal cancer remain high among individuals on effective ART. The incidence of cervical cancer is high among HIV-infected women, particularly in countries wherein there are no organized cervical cancer prevention programmes. Efforts are in progress to define optimal screen-and-treat cervical cancer prevention programmes in different clinical settings and to define the efficacy of secondary prevention programmes for prevention of anal cancer. SUMMARY HPV-related cancers are likely to remain an important problem in HIV-infected men and women for the foreseeable future, even among those on effective ART.
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Berry-Lawhorn JM, Palefsky JM. Progression of anal high-grade squamous intraepithelial lesions to anal squamous cell carcinoma and clinical management of anal superficially invasive squamous cell carcinoma. SEMINARS IN COLON AND RECTAL SURGERY 2017. [DOI: 10.1053/j.scrs.2017.04.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Wentzensen N, Arbyn M, Berkhof J, Bower M, Canfell K, Einstein M, Farley C, Monsonego J, Franceschi S. Eurogin 2016 Roadmap: how HPV knowledge is changing screening practice. Int J Cancer 2017; 140:2192-2200. [PMID: 28006858 DOI: 10.1002/ijc.30579] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 11/30/2016] [Accepted: 12/08/2016] [Indexed: 01/01/2023]
Abstract
Human papillomaviruses (HPVs) are the necessary cause of most cervical cancers, a large proportion of other anogenital cancers, and a subset of oropharyngeal cancers. The knowledge about HPV has led to development of novel HPV-based prevention strategies with important impact on clinical and public health practice. Two complementary reviews have been prepared following the 2015 Eurogin Conference to evaluate how knowledge about HPV is changing practice in HPV infection and disease control through vaccination and screening. This review focuses on screening for cervical and anal cancers in increasingly vaccinated populations. The introduction of HPV vaccines a decade ago has led to reductions in HPV infections and early cancer precursors in countries with wide vaccination coverage. Despite the high efficacy of HPV vaccines, cervical cancer screening will remain important for many decades. Many healthcare systems are considering switching to primary HPV screening, which has higher sensitivity for cervical precancers and allows extending screening intervals. We describe different approaches to implementing HPV-based screening efforts in different healthcare systems with a focus in high-income countries. While the population prevalence for other anogenital cancers is too low for population-based screening, anal cancer incidence is very high in HIV-infected men who have sex with men, warranting consideration of early detection approaches. We summarize the current evidence on HPV-based prevention of anal cancers and highlight important evidence gaps.
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Affiliation(s)
- Nicolas Wentzensen
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, USA
| | - Marc Arbyn
- Unit of Cancer Epidemiology & Belgian Cancer Centre, Scientific Institute of Public Health, Brussels, Belgium
| | - Johannes Berkhof
- Department of Clinical Epidemiology and Biostatistics, VU University Medical Centre, Amsterdam, The Netherlands
| | - Mark Bower
- Department of Surgery & Cancer, Faculty of Medicine, Imperial College, London, UK
| | - Karen Canfell
- Cancer Research Division, Cancer Council NSW, Sydney, NSW, Australia; School of Public Health, University of Sydney, Sydney, NSW, Australia
| | - Mark Einstein
- Department of OB/GYN & Women's Health, Rutgers New Jersey Medical School, Newark, USA
| | - Christopher Farley
- Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Australia
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Anal Cancer Screening in Men Who Have Sex With Men in the Multicenter AIDS Cohort Study. J Acquir Immune Defic Syndr 2016; 71:570-6. [PMID: 26656784 DOI: 10.1097/qai.0000000000000910] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVE To evaluate the prevalence of anal cytology (ACyt) abnormalities among HIV-infected and HIV-uninfected men who have sex with men (MSM). DESIGN Multicenter cohort study of 723 HIV-infected and 788 HIV-uninfected MSM with ACyt, with a second ACyt collected 2 years later. A referral for high-resolution anoscopy was suggested for abnormal ACyt. METHODS ACyt samples were collected using a polyester swab and liquid cytology media and read in a central laboratory. RESULTS Prevalence of any abnormal ACyt was 25% in HIV-uninfected MSM and increased to 38%, 41%, and 47% among HIV-infected MSM with current CD4 T-cell counts ≥500, 350-499, and <350 cells/mm (P < 0.001), respectively. Anal HPV16 DNA was also more common in HIV-infected than HIV-uninfected MSM (25% versus 16%, P < 0.001). Abnormal baseline ACyt together with prevalent HPV16 DNA detection was present in only 7% of HIV-uninfected MSM compared to 18% of HIV-infected MSM with current CD4 < 350, P < 0.001. Among HIV-infected men, 56% of the men with atypical squamous cells of undetermined significance or low-grade squamous intraepithelial lesions ASCs-US/LSILs and 81% of men with atypical squamous cells cannot exclude high-grade (ASC-H/)/high-grade squamous intraepithelial lesions (HSIL) had lower grade ACyt findings 18-30 months later ("regressed"). However, 19% of untreated HIV-infected men with ASC-H/HSIL cytology maintained that same grade of cytology in their second test approximately 2 years later, and 15% with ASC-US/LSIL "progressed" to ASC-H/HSIL. Abnormal ACyt had high sensitivity (96%) but low specificity (17%) for biopsy-proven HSIL. CONCLUSIONS Prevalence of abnormal ACyt remains elevated in HIV-infected men during the current antiretroviral therapy era.
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Abstract
OBJECTIVE The study sought to establish the feasibility and acceptability of anal screening among men MSM. DESIGN Prospective cohort study. SETTING Sexual health clinics in tertiary care. PATIENTS Known HIV-positive and negative MSM who have anoreceptive intercourse. INTERVENTION Anal screening with human papilloma virus (HPV) testing, liquid-based cytology and high-resolution anoscopy with biopsy of anoscopic abnormalities. Participants completed questionnaires at baseline and at 6 months. RESULTS Anal HPV was highly prevalent in MSM (HIV-positive, 88% and HIV-negative, 78%). Despite the high prevalence of cytological abnormality in both HIV-positive (46.2%) and negative (35.0%) MSM, almost half of anal intraepithelial neoplasia (AIN) of all grades were associated with negative cytology. Anoscopically directed biopsies detected AIN3 or worse (AIN3+) in 14 of 203 (6.9%) of HIV-positive MSM and three of 81 (3.7%) HIV-negative MSM. The corresponding prevalence of AIN2+ was 26.6 and 20.9%, respectively. One case of AIN3 was detected at the second visit. Screening was considered to be highly acceptable by participants. CONCLUSION The high prevalence of high-risk-HPV and frequency of false negative cytology in this study suggest that high-resolution anoscopy would have most clinical utility, as a primary screening tool for anal cancer in a high-risk group. The prevalence of AIN3+ in HIV-positive MSM lends support for a policy of screening this group, but the high prevalence of lower grade lesions which do not warrant immediate treatment and the limitations of treating high-grade lesions requires careful consideration in terms of a screening policy.
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Fuchs W, Wieland U, Skaletz-Rorowski A, Brockmeyer N, Swoboda J, Kreuter A, Michalik C, Potthoff A. The male ScreenING Study: prevalence of HPV-related genital and anal lesions in an urban cohort of HIV-positive men in Germany. J Eur Acad Dermatol Venereol 2016; 30:995-1001. [DOI: 10.1111/jdv.13539] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 10/19/2015] [Indexed: 02/01/2023]
Affiliation(s)
- W. Fuchs
- Department of Dermatology, Venereology and Allergology; Center for Sexual Health and Medicine; Ruhr-University Bochum; Bochum Germany
| | - U. Wieland
- National Reference Center for Papilloma- and Polyomaviruses; Institute of Virology; Uniklinik Köln; University of Cologne; Koeln Germany
| | - A. Skaletz-Rorowski
- Competence Network for HIV/AIDS (KompNet HIV/AIDS); Ruhr-University Bochum; Bochum Germany
| | - N.H. Brockmeyer
- Department of Dermatology, Venereology and Allergology; Center for Sexual Health and Medicine; Ruhr-University Bochum; Bochum Germany
| | | | - A. Kreuter
- Department of Dermatology, Venereology and Allergology; Center for Sexual Health and Medicine; Ruhr-University Bochum; Bochum Germany
| | - C. Michalik
- Competence Network for HIV/AIDS (KompNet HIV/AIDS); Ruhr-University Bochum; Bochum Germany
- Clinical Trial Centre (ZKS); University of Cologne; Cologne Germany
| | - A. Potthoff
- Department of Dermatology, Venereology and Allergology; Center for Sexual Health and Medicine; Ruhr-University Bochum; Bochum Germany
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Topical cidofovir to treat high-grade anal intraepithelial neoplasia in HIV-infected patients: a pilot clinical trial. AIDS 2016; 30:75-82. [PMID: 26731755 DOI: 10.1097/qad.0000000000000886] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
OBJECTIVE To evaluate the efficacy of 1% topical cidofovir cream for the treatment of anal high-grade squamous intraepithelial lesions (HSILs) in HIV-infected individuals. DESIGN Single-arm, open-label, pilot clinical trial. METHODS The study medication was applied intraanally three times per week for 4 weeks. Lesions were assessed with high-resolution anoscopy and biopsy at weeks 12 and 24. The primary endpoint was complete remission (CR) at week 12, defined as clinical and histological remission. We also evaluated partial remission defined as regression to low-grade squamous intraepithelial lesion. RESULTS We included 17 HIV-infected patients with intraanal HSIL. Median (interquartile range) age was 36 years (28-41), median (interquartile range) CD4 cell count was 545 cells/μl (358-630), and viral load was less than 50 copies/ml in 93.7%. Two patients were lost to follow-up, one of them did not apply treatment. At 12 weeks, in the intention-to-treat population, 10 out of 16 patients [62.5%; 95% confidence interval (CI), 38.2-85.7%] had achieved CR. At 24 weeks, seven of the 10 patients (70%; 95% CI, 47-93%) remained in CR, but two out of 10 patients (20%; 95% CI, 0-40%) presented HSIL. One patient did not attend the visit at 24 weeks. Three patients with persistent HSIL at 12 weeks improved at 24 weeks (partial response in one and CR in two). The mean number of human papillomavirus genotypes decreased from 5.2 to 2.7 at 12 weeks (P = 0.002). Local adverse effects were frequent (81%), although there were no discontinuations because of adverse events. CONCLUSION One percent topical cidofovir could be an appropriate alternative therapy in HIV-infected patients with anal HSIL. CLINICAL TRIAL gov unique identifier: NCT01946009.
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Cornall AM, Roberts JM, Molano M, Machalek DA, Phillips S, Hillman RJ, Grulich AE, Jin F, Poynten IM, Templeton DJ, Garland SM, Tabrizi SN. Laser capture microdissection as a tool to evaluate human papillomavirus genotyping and methylation as biomarkers of persistence and progression of anal lesions. BMJ Open 2015; 5:e008439. [PMID: 26310402 PMCID: PMC4554896 DOI: 10.1136/bmjopen-2015-008439] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
INTRODUCTION Anal squamous cell carcinoma is preceded by persistent infection with high-risk human papillomavirus (HPV) and the cancer precursor, high-grade squamous intraepithelial lesion (HSIL). Detection of specific HPV genotypes and HPV-related biomarkers may be an option for primary anal screening. However, more data on the natural history of HPV-related anal lesions are required. The outcomes from this study will enhance our understanding of the clinical and biological behaviour of HPV-related anal lesions and inform the development of future HPV genotype and/or biomarker screening tests. METHODS AND ANALYSIS HIV-negative and HIV-positive men who have sex with men, aged 35 years and over, recruited from community-based settings in Sydney, Australia, attend 6 clinic visits over 3 years. At the first 5 visits, participants undergo a digital anorectal examination, an anal swab for HPV genotyping and anal cytology, and high-resolution anoscopy with directed biopsy of any visible abnormalities that are suggestive of any abnormality suspicious of SIL. Tissue sections from participants diagnosed with histologically confirmed HSIL at the baseline clinic visit will undergo laser capture microdissection, HPV detection and genotyping, and quantitation of CpG methylation in baseline and follow-up biopsies. Histological and cytological findings in combination with HPV genotyping data will be used to identify persistent HSIL. HSIL will be stratified as non-persistent and persistent based on their status at 12 months. The performance of HPV genotype and methylation status in predicting disease persistence at 12 months will be assessed, along with associations with HIV status and other covariates such as age. ETHICS AND DISSEMINATION The St Vincent's Hospital Ethics Committee granted ethics approval for the study. Written informed consent is obtained from all individuals before any study-specific procedures are performed. Findings from this study will be disseminated to participants and the community through study newsletters, and through peer-reviewed publications and international conferences.
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Affiliation(s)
- Alyssa M Cornall
- Regional HPV Labnet Reference Laboratory, Department of Microbiology and Infectious Diseases, The Royal Women's Hospital, Parkville, Victoria, Australia
- Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | | | - Monica Molano
- Regional HPV Labnet Reference Laboratory, Department of Microbiology and Infectious Diseases, The Royal Women's Hospital, Parkville, Victoria, Australia
| | - Dorothy A Machalek
- Regional HPV Labnet Reference Laboratory, Department of Microbiology and Infectious Diseases, The Royal Women's Hospital, Parkville, Victoria, Australia
- Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - Samuel Phillips
- Regional HPV Labnet Reference Laboratory, Department of Microbiology and Infectious Diseases, The Royal Women's Hospital, Parkville, Victoria, Australia
- Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - Richard J Hillman
- Western Sydney Sexual Health Centre, University of Sydney, Sydney, New South Wales, Australia
| | - Andrew E Grulich
- The Kirby Institute, UNSW Australia, Kensington, New South Wales, Australia
| | - Fengyi Jin
- The Kirby Institute, UNSW Australia, Kensington, New South Wales, Australia
| | - I Mary Poynten
- The Kirby Institute, UNSW Australia, Kensington, New South Wales, Australia
| | - David J Templeton
- The Kirby Institute, UNSW Australia, Kensington, New South Wales, Australia
- RPA Sexual Health, Sydney Local Health District, Camperdown, New South Wales, Australia
| | - Suzanne M Garland
- Regional HPV Labnet Reference Laboratory, Department of Microbiology and Infectious Diseases, The Royal Women's Hospital, Parkville, Victoria, Australia
- Department of Obstetrics and Gynaecology, University of Melbourne
| | - Sepehr N Tabrizi
- Regional HPV Labnet Reference Laboratory, Department of Microbiology and Infectious Diseases, The Royal Women's Hospital, Parkville, Victoria, Australia
- Department of Obstetrics and Gynaecology, University of Melbourne
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