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Mungo C, Guliam A, Chinula L, Inturrisi F, Msowoya L, Mkochi T, Jawadu S, de Sanjosé S, Schiffman M, Tang JH, Smith JS. Comparison of the ScreenFire and Xpert HPV assays for the detection of human papillomavirus and cervical precancer among women living with HIV in Malawi. Infect Agent Cancer 2024; 19:24. [PMID: 38760798 PMCID: PMC11100048 DOI: 10.1186/s13027-024-00585-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 05/03/2024] [Indexed: 05/19/2024] Open
Abstract
BACKGROUND The World Health Organization recommends human papillomavirus (HPV) testing for primary cervical cancer screening, including among women living with HIV (WLWH). Low-and-middle-income countries account for 85% of the cervical cancer burden globally, yet have limited access to HPV-based screening, largely due to cost. This study aims to compare the performance of a rapid, isothermal amplification HPV assay (ScreenFire) to that of the Xpert HPV assay for the detection of HPV and cervical precancer among WLWH in Malawi. METHODS We utilized stored self- and provider-collected specimens from a prospective cohort study of WLWH in Malawi from July 2020 to February 2022. Specimens were tested with both Xpert and ScreenFire HPV assays. The overall and within-channel non-hierarchical agreement between ScreenFire and Xpert was determined for both self- and provider-collected specimens. Hierarchical ScreenFire HPV positivity by channel was compared to Xpert for each histological diagnosis-cervical intraepithelial neoplasia grade 2 or worse (CIN2+) compared to RESULTS 315 matched self- and provider-collected specimens had valid results from both Xpert and ScreenFire testing and were included in analyses, of which 279 and 36 were HPV positive and HPV negative, respectively, on Xpert self-collection. Of the 315, 245 (78%) had normal pathology, 21 CIN1 (7%), 14 CIN2 (4%), and 35 CIN3 (11%). Of the 245 with normal pathology, 213 (87%) and 188 (77%) were HPV-positive on Xpert and ScreenFire self-collected specimens, respectively. Among provider-collected specimens, the assays had 80% agreement on overall HPV positivity (unweighted kappa 0.59, 95% 0.50-0.69). ScreenFire was HPV-positive in 90% of self-collected specimens that were HPV-positive on Xpert. Channel agreement between the assays was high for both self- and provider-collected specimens, but slightly lower for HPV18/45. In hierarchical analysis, ScreenFire demonstrated high concordance with Xpert testing for detecting CIN2+ cases in all channels, missing no HPV 16 or HPV 18/45 positive CIN2+ case that was positive on Xpert, in both self- and provider-collected specimens. CONCLUSION In this study of stored specimens, the ScreenFire HPV assay performed well in the detection of HPV and CIN2+ among WLWH compared to the Xpert HPV assay. If supported by larger validation studies, ScreenFire could be an affordable alternative point-of-care HPV assay for use in LMICs.
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Affiliation(s)
- Chemtai Mungo
- Department of Obstetrics and Gynecology, University of North Carolina-Chapel Hill, Chapel Hill, NC, USA.
| | - Anagha Guliam
- Barnard College of Columbia University, New York City, NY, USA
| | - Lameck Chinula
- Department of Obstetrics and Gynecology, University of North Carolina-Chapel Hill, Chapel Hill, NC, USA
- University of North Carolina Project-Malawi, Lilongwe, Malawi
| | - Federica Inturrisi
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, USA
| | - Lizzie Msowoya
- University of North Carolina Project-Malawi, Lilongwe, Malawi
| | - Tawonga Mkochi
- University of North Carolina Project-Malawi, Lilongwe, Malawi
| | - Siniya Jawadu
- University of North Carolina Project-Malawi, Lilongwe, Malawi
| | - Silvia de Sanjosé
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, USA
- ISGlobal, Barcelona, Spain
| | - Mark Schiffman
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, USA
| | - Jennifer H Tang
- Department of Obstetrics and Gynecology, University of North Carolina-Chapel Hill, Chapel Hill, NC, USA
- University of North Carolina Project-Malawi, Lilongwe, Malawi
| | - Jennifer S Smith
- Gillings School of Global Public Health, University of North Carolina-Chapel Hill, Chapel Hill, NC, USA
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Mungo C, Guliam A, Chinula L, Inturrisi F, Msowoya L, Mkochi T, Jawadu S, de Sanjosé S, Schiffman M, Tang JH, Smith JS. Comparison of the ScreenFire and Xpert HPV assays for the detection of human papillomavirus and cervical precancer among women living with HIV in Malawi. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.02.21.24303142. [PMID: 38617305 PMCID: PMC11014639 DOI: 10.1101/2024.02.21.24303142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
Background The World Health Organization (WHO) recommends human papillomavirus (HPV) testing for primary cervical cancer screening, including among women living with HIV (WLWH). Low-and-middle-income countries (LMICs) account for 85% of the cervical cancer burden globally, yet have limited access to HPV-based screening, largely due to cost. This study aims to compare the performance of a rapid, isothermal amplification HPV assay (ScreenFire) to that of the Xpert HPV assay for the detection of HPV and cervical precancer among WLWH in Malawi. Methods We utilized stored self- and provider-collected specimens from a prospective cohort study of WLWH in Malawi from July 2020 to February 2022. Specimens were tested with both Xpert and ScreenFire HPV assays. The overall and within-channel non-hierarchical agreement between ScreenFire and Xpert was determined for both self- and provider-collected specimens. Hierarchical ScreenFire HPV positivity by channel was compared to Xpert for each histological diagnosis - cervical intraepithelial neoplasia grade 2 or worse (CIN2+) compared to Results 315 matched self- and provider-collected specimens had valid results from both Xpert and ScreenFire testing and were included in analyses. Of these, 245 (78%) had normal pathology, 21 CIN1 (7%), 14 CIN2 (4%), and 35 CIN3 (11%). Among provider-collected specimens, the assays had 80% agreement on overall HPV positivity (unweighted kappa 0.59, 95% 0.50-0.69). ScreenFire was HPV-positive in 90% of self-collected specimens that were HPV-positive on Xpert. Channel agreement between the assays was high for both self- and provider-collected specimens, but slightly lower for HPV18/45. In hierarchical analysis, ScreenFire demonstrated high concordance with Xpert testing for detecting CIN2+ cases in all channels, missing no HPV 16 or HPV 18/45 positive CIN2+ case that was positive on Xpert, in both self- and provider-collected specimens. Conclusion In this study of stored specimens, the ScreenFire HPV assay performed well in the detection of HPV and CIN2+ among WLWH compared to the Xpert HPV assay. If supported by larger validation studies, ScreenFire could be an affordable alternative point-of-care HPV assay for use in LMICs.
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Affiliation(s)
- Chemtai Mungo
- Department of Obstetrics and Gynecology, University of North Carolina-Chapel Hill
| | | | - Lameck Chinula
- Department of Obstetrics and Gynecology, University of North Carolina-Chapel Hill
- University of North Carolina Project-Malawi, Lilongwe, Malawi
| | - Federica Inturrisi
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, USA
| | - Lizzie Msowoya
- University of North Carolina Project-Malawi, Lilongwe, Malawi
| | - Tawonga Mkochi
- University of North Carolina Project-Malawi, Lilongwe, Malawi
| | - Siniya Jawadu
- University of North Carolina Project-Malawi, Lilongwe, Malawi
| | - Silvia de Sanjosé
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, USA
- Gillings School of Global Public Health, University of North Carolina-Chapel Hill
| | - Mark Schiffman
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, USA
| | - Jennifer H. Tang
- Department of Obstetrics and Gynecology, University of North Carolina-Chapel Hill
- University of North Carolina Project-Malawi, Lilongwe, Malawi
| | - Jennifer S. Smith
- Gillings School of Global Public Health, University of North Carolina-Chapel Hill
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Kositamongkol C, Kanchanasurakit S, Mepramoon E, Talungchit P, Chaopotong P, Kengkla K, Chaisathaphol T, Saokaew S, Phisalprapa P. Cost-utility and budget impact analyses of cervical cancer screening using self-collected samples for HPV DNA testing in Thailand. BMC Public Health 2023; 23:2413. [PMID: 38049773 PMCID: PMC10696797 DOI: 10.1186/s12889-023-17358-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 11/28/2023] [Indexed: 12/06/2023] Open
Abstract
INTRODUCTION Cervical cancer ranks as the third most prevalent cancer among women in Thailand. However, the effectiveness of cervical cancer screening programs is limited by several factors that impede the screening rate. The utilization of self-collected samples for screening purposes has the potential to alleviate barriers to screening in Thai women. This study assessed the cost-utility and budget impact of implementing cervical cancer screening using self-collected samples for human papillomavirus (HPV) deoxyribonucleic acid (DNA) testing in Thailand. MATERIALS AND METHODS We employed a decision tree integrated with a Markov model to estimate the lifetime costs and health benefits associated with the cervical cancer screening program for women aged 25-65. The analysis was conducted from a societal perspective. Four screening policy options were compared: (1) additional self-collected samples for HPV DNA testing, (2) clinician-collected samples for HPV DNA testing only, (3) clinician-collected samples for cytology test (i.e., status quo), and (4) no screening. The model inputs were based on unvaccinated women. The screening strategies and management in those with positive results were assumed followed to the Thai clinical practice guideline. Costs were reported in 2022 Thai baht. Sensitivity analyses were conducted. The ten-year budget impacts of the additional self-collected samples for HPV DNA testing were calculated from a payer perspective. RESULTS All screening policies were cost-saving compared to no screening. When comparing the additional self-collected samples for HPV DNA testing with the clinician-collected samples policy, it emerged as the dominant strategy. The incremental benefit in cervical cancer prevention achieved by incorporating self-collected samples for screening was observed at any additional screening rate that could be achieved through their use. Sensitivity analyses yielded consistently favorable results for the screening policies. The average annual budget impact of the additional self-collected samples for screening policy amounted to 681 million Thai baht. This budget allocation could facilitate cervical cancer screening for over 10 million women. CONCLUSIONS An addition of self-collected samples for HPV DNA testing into the cervical cancer screening program is cost-saving. The benefits of this screening policy outweigh the associated incremental costs. Policymakers should consider this evidence during the policy optimization process.
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Affiliation(s)
- Chayanis Kositamongkol
- Division of Ambulatory Medicine, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Sukrit Kanchanasurakit
- Division of Pharmacy Practice, Department of Pharmaceutical Care, School of Pharmaceutical Sciences, University of Phayao, Phayao, Thailand
- Division of Pharmaceutical Care, Department of Pharmacy, Phrae Hospital, Phrae, Thailand
- Center of Health Outcomes Research and Therapeutic Safety (Cohorts), School of Pharmaceutical Sciences, University of Phayao, Phayao, Thailand
- Unit of Excellence on Clinical Outcomes Research and IntegratioN (UNICORN), School of Pharmaceutical Sciences, University of Phayao, Phayao, Thailand
| | - Euarat Mepramoon
- Division of Ambulatory Medicine, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Pattarawalai Talungchit
- Department of Obstetrics and Gynecology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Pattama Chaopotong
- Department of Obstetrics and Gynecology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Kirati Kengkla
- Division of Pharmacy Practice, Department of Pharmaceutical Care, School of Pharmaceutical Sciences, University of Phayao, Phayao, Thailand
| | - Thanet Chaisathaphol
- Division of Ambulatory Medicine, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Surasak Saokaew
- Division of Pharmacy Practice, Department of Pharmaceutical Care, School of Pharmaceutical Sciences, University of Phayao, Phayao, Thailand.
- Center of Health Outcomes Research and Therapeutic Safety (Cohorts), School of Pharmaceutical Sciences, University of Phayao, Phayao, Thailand.
- Unit of Excellence on Clinical Outcomes Research and IntegratioN (UNICORN), School of Pharmaceutical Sciences, University of Phayao, Phayao, Thailand.
| | - Pochamana Phisalprapa
- Division of Ambulatory Medicine, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
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Narvaez L, Viviano M, Dickson C, Jeannot E. The acceptability of HPV vaginal self-sampling for cervical cancer screening in Latin America: A systematic review. PUBLIC HEALTH IN PRACTICE 2023; 6:100417. [PMID: 37564780 PMCID: PMC10410574 DOI: 10.1016/j.puhip.2023.100417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 07/22/2023] [Accepted: 07/28/2023] [Indexed: 08/12/2023] Open
Abstract
Objective This review summarizes women's acceptability of vaginal self-sampling for cervical cancer screening in Latin America. Study design Systematic review. Method A systematic literature search was performed in PubMed, Web of Science, and Embase regarding the acceptance of HPV vaginal self-sampling by women over 18 years old. Articles were selected for research that was conducted in Latin America and published between January 1st, 1993, and December 31st, 2022. Results Fifteen publications were included. Eight publications reported an acceptance of HPV self-sampling as high as 80%, six papers found an acceptance rate between 50 and 80% and only one found an acceptance rate of less than 50%. Based on non-standardized questionnaires, women considered self-sampling more comfortable, easier, and less painful than conventional cytology. The procedure was associated with less embarrassment and a greater sense of privacy. Conclusion HPV vaginal-self sampling appears to be an acceptable screening method amongst eligible Latin American women.
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Affiliation(s)
- Luisa Narvaez
- Institute of Global Health - Faculty of Medicine, Chemin de Mines 9, 1202, Geneva, Switzerland
| | - Manuela Viviano
- Gynecology Division, Department of Obstetrics and Gynecology, Geneva University Hospitals, Boulevard de la Cluse 30, 1205, Geneva, Switzerland
| | - Cheryl Dickson
- Community Psychiatric Service, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - Emilien Jeannot
- Institute of Global Health - Faculty of Medicine, Chemin de Mines 9, 1202, Geneva, Switzerland
- Community Psychiatric Service, Lausanne University Hospital (CHUV), Lausanne, Switzerland
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Rojas-Roque C, Palacios A. A Systematic Review of Health Economic Evaluations and Budget Impact Analyses to Inform Healthcare Decision-Making in Central America. APPLIED HEALTH ECONOMICS AND HEALTH POLICY 2023; 21:419-440. [PMID: 36720754 DOI: 10.1007/s40258-023-00791-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/19/2023] [Indexed: 05/03/2023]
Abstract
BACKGROUND Little is known about the quality, quantity and disease areas analysed by health economic research that inform healthcare decision-making in Central America. This study aimed to review the existing health economic evaluations (HEEs) and budget impact analyses (BIAs) evidence in Central America based on scope and reporting quality. METHODS HEEs and BIAs published from 2000 to April 2021 were searched in five electronic databases: PubMed, Embase, LILACS (Latin American and Caribbean Health Science Literature), EconLIT and OVID Global Health. Two reviewers assessed titles, abstracts and full texts of studies for eligibility. The quality appraisal for the reporting was based on La Torre and colleagues' version of the Drummond checklist and the ISPOR good practices for BIA. For each country, we correlated the number of studies by disease area with their respective burden of disease to identify under-researched health areas. RESULTS 102 publications were eligible for this review. Ninety-four publications reported a HEE, six publications reported a BIA, and two studies reported both a HEE and a BIA. Costa Rica had the highest number of publications (n = 28, 27.5%), followed by Guatemala (n = 25, 24.5%). Cancer and respiratory infections were the most common types of disease studied. Diabetes mellitus, chronic kidney diseases, and mental disorders were under-researched relative to their disease burden in most of the countries. The overall mean quality reporting score for HEE and BIA studies were 71/119 points (60%) and 7/10 points (70%), respectively; however, these assessments were made on different scales. CONCLUSION In Central America, health economic research is sparse and is considered as suboptimal quality for reporting. The findings reported information useful to other low- and middle-income countries with similar advances in the application of economics to promote health policy decision-making.
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Affiliation(s)
- Carlos Rojas-Roque
- Health Technology Assessment and Health Economics Department, Institute for Clinical Effectiveness and Health Policy (IECS), Doctor Emilio Ravignani 2024, Buenos Aires, Argentina.
| | - Alfredo Palacios
- Health Technology Assessment and Health Economics Department, Institute for Clinical Effectiveness and Health Policy (IECS), Doctor Emilio Ravignani 2024, Buenos Aires, Argentina
- Facultad de Ciencias Económicas, Universidad de Buenos Aires, Buenos Aires, Argentina
- Centre for Health Economics (CHE), University of York, York, UK
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Rol ML, Picconi MA, Ferrera A, Sánchez GI, Hernández MDLL, Lineros J, Peraza A, Brizuela M, Mendoza L, Mongelós P, Cabrera Y, Rodríguez de la Peña M, Correa RM, Terán C, Colque Reynaga D, García L, Ramírez AT, Hernández-Nevarez P, Doimi F, Ramón M, Arias-Stella J, Zúñiga M, Villagra V, Bobadilla ML, Cardinal L, Valls J, Lucas E, Baena A, Fleider L, Venegas G, Cruz-Valdez A, Rodríguez G, Calderón A, Wiesner C, Luciani S, Broutet N, Herrero R, Almonte M. Implementing HPV testing in 9 Latin American countries: The laboratory perspective as observed in the ESTAMPA study. Front Med (Lausanne) 2022; 9:1006038. [PMID: 36465901 PMCID: PMC9714610 DOI: 10.3389/fmed.2022.1006038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 10/24/2022] [Indexed: 11/18/2022] Open
Abstract
Background Replacement of cytology screening with HPV testing is recommended and essential for cervical cancer elimination. HPV testing for primary screening was implemented in 12 laboratories within 9 Latin American countries, as part of the ESTAMPA cervical cancer screening study. Our observations provide information on critical operational aspects for HPV testing implementation in diverse resource settings. Methods We describe the implementation process of HPV testing in ESTAMPA, focusing on laboratory aspects. We assess the readiness of 12 laboratories to start HPV testing and their continuity capacity to maintain good quality HPV testing until end of recruitment or up to December 2021. Readiness was based on a checklist. Information from the study database; regular meetings and monitoring visits; and a questionnaire on laboratory operational aspects sent in May 2020 were used to assess continuity capacity. Compliance with seven basic requirements (readiness) and eight continuity requirements (continuity capacity) was scored (1 = compliant, 0 = not compliant) and totaled to classify readiness and continuity capacity as very limited, limited, moderate or high. Experiences, challenges, and enablers of the implementation process are also described. Results Seven of 12 laboratories had high readiness, three moderate readiness, and of two laboratories new to HPV testing, one had limited readiness and the other very limited readiness. Two of seven laboratories with high readiness also showed high continuity capacity, one moderate continuity capacity, and the other four showed limited continuity capacity since they could not maintain good quality HPV testing over time. Among three laboratories with moderate readiness, one kept moderate continuity capacity and two reached high continuity capacity. The two laboratories new to HPV testing achieved high continuity capacity. Based on gained expertise, five laboratories have become part of national screening programs. Conclusion High readiness of laboratories is an essential part of effective implementation of HPV testing. However, high readiness is insufficient to guarantee HPV testing high continuity capacity, for which a "culture of quality" should be established with regular training, robust monitoring and quality assurance systems tailored to local context. All efforts to strengthen HPV laboratories are valuable and crucial to guarantee effective implementation of HPV-based cervical screening.
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Affiliation(s)
- Mary Luz Rol
- Early Detection, Prevention and Infections Branch, International Agency for Research on Cancer, Lyon, France
| | | | - Annabelle Ferrera
- Instituto de Investigaciones en Microbiología, Universidad Nacional Autónoma de Honduras, Tegucigalpa, Honduras
| | | | - María de la Luz Hernández
- Early Detection, Prevention and Infections Branch, International Agency for Research on Cancer, Lyon, France
- SMS-Oncology, Amsterdam, Netherlands
| | - Joana Lineros
- Instituto Nacional de Cancerología, Bogotá, Colombia
| | - Ana Peraza
- Caja Costarricense de Seguro Social (CCSS), Región Pacífico Central, San José, Costa Rica
| | - Marisol Brizuela
- Caja Costarricense de Seguro Social (CCSS), Región Pacífico Central, San José, Costa Rica
| | - Laura Mendoza
- Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Asunción, San Lorenzo, Paraguay
| | - Pamela Mongelós
- Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Asunción, San Lorenzo, Paraguay
| | - Yessy Cabrera
- Grupo de Infección y Cáncer, Universidad de Antioquia, Medellín, Colombia
| | | | - Rita Mariel Correa
- Instituto de Investigaciones en Microbiología, Universidad Nacional Autónoma de Honduras, Tegucigalpa, Honduras
| | - Carolina Terán
- Facultad de Medicina, Universidad Mayor, Real y Pontificia de San Francisco Xavier de Chuquisaca, Sucre, Bolivia
| | - Deisy Colque Reynaga
- Facultad de Medicina, Universidad Mayor, Real y Pontificia de San Francisco Xavier de Chuquisaca, Sucre, Bolivia
| | - Laura García
- Laboratorio de Biología Molecular, Departamento de Patología Clínica, Centro Hospitalario Pereira Rossell, Montevideo, Uruguay
| | - Arianis Tatiana Ramírez
- Early Detection, Prevention and Infections Branch, International Agency for Research on Cancer, Lyon, France
| | | | - Franco Doimi
- Laboratorio de Patología Oncológica SAC, Lima, Peru
| | - María Ramón
- Laboratorio de Patología Oncológica SAC, Lima, Peru
| | | | - Michael Zúñiga
- Agencia Costarricense de Investigaciones Biomédicas (ACIB), Fundación Inciensa, San José, Guanacaste, Costa Rica
| | | | | | - Lucía Cardinal
- Hospital de Clínicas José de San Martín, Buenos Aires, Argentina
| | - Joan Valls
- Early Detection, Prevention and Infections Branch, International Agency for Research on Cancer, Lyon, France
| | - Eric Lucas
- Early Detection, Prevention and Infections Branch, International Agency for Research on Cancer, Lyon, France
| | - Armando Baena
- Early Detection, Prevention and Infections Branch, International Agency for Research on Cancer, Lyon, France
| | - Laura Fleider
- Hospital de Clínicas José de San Martín, Buenos Aires, Argentina
| | - Gino Venegas
- Clínica Angloamericana, Lima, Peru
- Liga contra el Cáncer, Lima, Peru
| | | | | | - Alejandro Calderón
- Caja Costarricense de Seguro Social (CCSS), Región Pacífico Central, San José, Costa Rica
| | | | - Silvana Luciani
- Pan American Health Organization (PAHO), Washington, DC, United States
| | - Nathalie Broutet
- Department of Sexual and Reproductive Health and Research, World Health Organization, Geneva, Switzerland
| | - Rolando Herrero
- Early Detection, Prevention and Infections Branch, International Agency for Research on Cancer, Lyon, France
- Agencia Costarricense de Investigaciones Biomédicas (ACIB), Fundación Inciensa, San José, Guanacaste, Costa Rica
| | - Maribel Almonte
- Early Detection, Prevention and Infections Branch, International Agency for Research on Cancer, Lyon, France
- Department of Sexual and Reproductive Health and Research, World Health Organization, Geneva, Switzerland
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Shastri SS, Temin S, Almonte M, Basu P, Campos NG, Gravitt PE, Gupta V, Lombe DC, Murillo R, Nakisige C, Ogilvie G, Pinder LF, Poli UR, Qiao Y, Woo YL, Jeronimo J. Secondary Prevention of Cervical Cancer: ASCO Resource-Stratified Guideline Update. JCO Glob Oncol 2022; 8:e2200217. [PMID: 36162041 PMCID: PMC9812449 DOI: 10.1200/go.22.00217] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/02/2022] [Accepted: 08/17/2022] [Indexed: 01/07/2023] Open
Abstract
PURPOSE To update resource-stratified, evidence-based recommendations on secondary prevention of cervical cancer globally. METHODS American Society of Clinical Oncology convened a multidisciplinary, multinational Expert Panel to produce recommendations reflecting four resource-tiered settings. A review of existing guidelines, formal consensus-based process, and modified ADAPTE process to adapt existing guidelines was conducted. Other experts participated in formal consensus. RESULTS This guideline update reflects changes in evidence since the previous update. Five existing guidelines were identified and reviewed, and adapted recommendations form the evidence base. Cost-effectiveness analyses provided indirect evidence to inform consensus, which resulted in ≥ 75% agreement. RECOMMENDATIONS Human papillomavirus (HPV) DNA testing is recommended in all resource settings; visual inspection with acetic acid may be used in basic settings. Recommended age ranges and frequencies vary by the following setting: maximal: age 25-65 years, every 5 years; enhanced: age 30-65 years, if two consecutive negative tests at 5-year intervals, then every 10 years; limited: age 30-49 years, every 10 years; basic: age 30-49 years, one to three times per lifetime. For basic settings, visual assessment is used to determine treatment eligibility; in other settings, genotyping with cytology or cytology alone is used to determine treatment. For basic settings, treatment is recommended if abnormal triage results are obtained; in other settings, abnormal triage results followed by colposcopy is recommended. For basic settings, treatment options are thermal ablation or loop electrosurgical excision procedure; for other settings, loop electrosurgical excision procedure or ablation is recommended; with a 12-month follow-up in all settings. Women who are HIV-positive should be screened with HPV testing after diagnosis, twice as many times per lifetime as the general population. Screening is recommended at 6 weeks postpartum in basic settings; in other settings, screening is recommended at 6 months. In basic settings without mass screening, infrastructure for HPV testing, diagnosis, and treatment should be developed.Additional information is available at www.asco.org/resource-stratified-guidelines.
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Affiliation(s)
| | - Sarah Temin
- American Society of Clinical Oncology, Alexandria, VA
| | | | | | - Nicole G Campos
- Harvard University T.H. Chan School of Public Health, Boston, MA
| | | | | | - Dorothy C Lombe
- Regional Cancer Treatment Services, MidCentral District Health Board, Palmerston North, New Zealand
| | | | | | | | | | - Usha R Poli
- India Institute of Public Health, Hyderabad, India
| | - Youlin Qiao
- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Sun L, Yang L, Liu X, Tang L, Zeng Q, Gao Y, Chen Q, Liu Z, Peng B. Optimization of Cervical Cancer Screening: A Stacking-Integrated Machine Learning Algorithm Based on Demographic, Behavioral, and Clinical Factors. Front Oncol 2022; 12:821453. [PMID: 35242711 PMCID: PMC8886038 DOI: 10.3389/fonc.2022.821453] [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: 11/24/2021] [Accepted: 01/19/2022] [Indexed: 12/24/2022] Open
Abstract
PURPOSE The purpose is to accurately identify women at high risk of developing cervical cancer so as to optimize cervical screening strategies and make better use of medical resources. However, the predictive models currently in use require clinical physiological and biochemical indicators, resulting in a smaller scope of application. Stacking-integrated machine learning (SIML) is an advanced machine learning technique that combined multiple learning algorithms to improve predictive performance. This study aimed to develop a stacking-integrated model that can be used to identify women at high risk of developing cervical cancer based on their demographic, behavioral, and historical clinical factors. METHODS The data of 858 women screened for cervical cancer at a Venezuelan Hospital were used to develop the SIML algorithm. The screening data were randomly split into training data (80%) that were used to develop the algorithm and testing data (20%) that were used to validate the accuracy of the algorithms. The random forest (RF) model and univariate logistic regression were used to identify predictive features for developing cervical cancer. Twelve well-known ML algorithms were selected, and their performances in predicting cervical cancer were compared. A correlation coefficient matrix was used to cluster the models based on their performance. The SIML was then developed using the best-performing techniques. The sensitivity, specificity, and area under the curve (AUC) of all models were calculated. RESULTS The RF model identified 18 features predictive of developing cervical cancer. The use of hormonal contraceptives was considered as the most important risk factor, followed by the number of pregnancies, years of smoking, and the number of sexual partners. The SIML algorithm had the best overall performance when compared with other methods and reached an AUC, sensitivity, and specificity of 0.877, 81.8%, and 81.9%, respectively. CONCLUSION This study shows that SIML can be used to accurately identify women at high risk of developing cervical cancer. This model could be used to personalize the screening program by optimizing the screening interval and care plan in high- and low-risk patients based on their demographics, behavioral patterns, and clinical data.
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Affiliation(s)
- Lin Sun
- School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Lingping Yang
- School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Xiyao Liu
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lan Tang
- Department of Physical Examation, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qi Zeng
- School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Yuwen Gao
- School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Qian Chen
- School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Zhaohai Liu
- Information Section, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Bin Peng
- School of Public Health and Management, Chongqing Medical University, Chongqing, China
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Lozar T, Nagvekar R, Rohrer C, Dube Mandishora RS, Ivanus U, Fitzpatrick MB. Cervical Cancer Screening Postpandemic: Self-Sampling Opportunities to Accelerate the Elimination of Cervical Cancer. Int J Womens Health 2021; 13:841-859. [PMID: 34566436 PMCID: PMC8458024 DOI: 10.2147/ijwh.s288376] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 08/30/2021] [Indexed: 12/24/2022] Open
Abstract
The persisting burden of cervical cancer in underserved populations and low-resource regions worldwide, worsened by the onset of the COVID-19 pandemic, requires proactive strategies and expanded screening options to maintain and improve screening coverage and its effects on incidence and mortality from cervical cancer. Self-sampling as a screening strategy has unique advantages from both a public health and individual patient perspective. Some of the barriers to screening can be mitigated by self-sampling, and resources can be better allocated to patients at the highest risk of developing cervical cancer. This review summarizes the implementation options for self-sampling and associated challenges, evidence in support of self-sampling, the available devices, and opportunities for expansion beyond human papillomavirus testing.
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Affiliation(s)
- Taja Lozar
- University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
- University of Wisconsin Carbone Cancer Center, University of Wisconsin School of Medicine & Public Health, Madison, WI, USA
- University of Ljubljana, Ljubljana, Slovenia
| | - Rahul Nagvekar
- Department of Genetics, Stanford University, Stanford, CA, USA
| | - Charles Rohrer
- Department of Pathology and Laboratory Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Racheal Shamiso Dube Mandishora
- University of Zimbabwe College of Health Sciences, Department of Medical Microbiology, Harare, Zimbabwe
- Early Detection, Prevention and Infections Group, International Agency for Research on Cancer, Lyon, France
| | - Urska Ivanus
- University of Ljubljana, Ljubljana, Slovenia
- National Cervical Cancer Screening Programme and Registry ZORA, Epidemiology and Cancer Registry, Institute of Oncology Ljubljana, Ljubljana, Slovenia
- Association of Slovenian Cancer Societies, Ljubljana, 1000, Slovenia
| | - Megan Burke Fitzpatrick
- University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
- Department of Pathology and Laboratory Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
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10
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Chatzistamatiou K, Tsertanidou A, Moysiadis T, Mouchtaropoulou E, Pasentsis K, Skenderi A, Stamatopoulos K, Agorastos T. Comparison of different strategies for the triage to colposcopy of women tested high-risk HPV positive on self-collected cervicovaginal samples. Gynecol Oncol 2021; 162:560-568. [PMID: 34210517 DOI: 10.1016/j.ygyno.2021.06.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/18/2021] [Accepted: 06/21/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To identify the optimal strategy for the triage of women who test high-risk (hr) HPV positive on self-collected cervicovaginal samples. METHODS This is a diagnostic accuracy sub-analysis of the GRECOSELF study, which reported on HPV-DNA testing with self-sampling in Greece. More than 13,000 women, 25-60 years old, who resided in rural areas of Greece, provided a self-collected cervicovaginal sample. Samples were tested for HPV-DNA and HPV16/18 genotyping with the cobas® HPV test (Roche® Molecular Systems, Pleasanton, CA, USA). HrHPV positive women were referred for colposcopy. Prior to colposcopy a physician-collected sample was obtained for cytology. After colposcopy/biopsy, women were classified as having cervical disease or not, and treated accordingly. RESULTS Out of 1070 hrHPV positive women, 773 were subjected to colposcopy. Seventeen triage strategies, combining HPV16/18 genotyping and cytology, were investigated. The strategy referring to colposcopy women positive for HPV16 regardless of the cytology report, and women positive for other hrHPVs, in case of a subsequent atypical squamous cells of undetermined significance or worse (ASCUS+) cytology report, presented optimal trade-off; sensitivity 96.36% [(95%CI: (91.41-100.0)], positive predictive value (PPV) 27.46% [95%CI: (21.16-33.76)], and number of colposcopies required to detect one case of Cervical Intraepithelial Neoplasia grade-2 or worse (CIN2+) 3.64. CONCLUSIONS The optimal strategy for the triage to colposcopy of hrHPV positive women, detected with the cobas® HPV test on self-collected cervicovaginal samples, is referring all HPV16 positive women directly to colposcopy, and women positive for HPV18 or other hrHPVs only after an ASCUS or worse cytology report.
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Affiliation(s)
- Kimon Chatzistamatiou
- 1(st) Department of Obstetrics and Gynecology, Aristotle University of Thessaloniki, Papageorgiou General Hospital, Thessaloniki, Greece.
| | - Athena Tsertanidou
- 3(th) Department of Obstetrics and Gynecology, Aristotle University of Thessaloniki, Hippokratio General Hospital, Thessaloniki, Greece
| | - Theodoros Moysiadis
- Institute of Applied Biosciences, Centre for Research & Technology - Hellas, Thessaloniki, Greece; Department of Computer Science, School of Sciences and Engineering, University of Nicosia, 2417 Nicosia, Cyprus
| | | | - Konstantinos Pasentsis
- Institute of Applied Biosciences, Centre for Research & Technology - Hellas, Thessaloniki, Greece
| | - Alkmini Skenderi
- Department of Cytology, Hippokratio General Hospital, Thessaloniki, Greece
| | - Kostas Stamatopoulos
- Institute of Applied Biosciences, Centre for Research & Technology - Hellas, Thessaloniki, Greece
| | - Theodoros Agorastos
- Department of Gynecologic Oncology, St. Luke's Hospital, Thessaloniki, Greece
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11
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Campos NG, Scarinci IC, Tucker L, Peral S, Li Y, Regan MC, Sy S, Castle PE, Kim JJ. Cost-Effectiveness of Offering Cervical Cancer Screening with HPV Self-Sampling among African-American Women in the Mississippi Delta. Cancer Epidemiol Biomarkers Prev 2021; 30:1114-1121. [PMID: 33771846 DOI: 10.1158/1055-9965.epi-20-1673] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 02/08/2021] [Accepted: 03/22/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND African-American women in the United States have an elevated risk of cervical cancer incidence and mortality. In the Mississippi Delta, cervical cancer disparities are particularly stark. METHODS We conducted a micro-costing study alongside a group randomized trial that evaluated the efficacy of a patient-centered approach ("Choice" between self-collection at home for HPV testing or current standard of care within the public health system in Mississippi) versus the current standard of care ["Standard-of-care screening," involving cytology (i.e., Pap) and HPV co-testing at the Health Department clinics]. The interventions in both study arms were delivered by community health workers (CHW). Using cost, screening uptake, and colposcopy adherence data from the trial, we informed a mathematical model of HPV infection and cervical carcinogenesis to conduct a cost-effectiveness analysis comparing the "Choice" and "Standard-of-care screening" interventions among un/underscreened African-American women in the Mississippi Delta. RESULTS When each intervention was simulated every 5 years from ages 25 to 65 years, the "Standard-of-care screening" strategy reduced cancer risk by 6.4% and was not an efficient strategy; "Choice" was more effective and efficient, reducing lifetime risk of cervical cancer by 14.8% and costing $62,720 per year of life saved (YLS). Screening uptake and colposcopy adherence were key drivers of intervention cost-effectiveness. CONCLUSIONS Offering "Choice" to un/underscreened African-American women in the Mississippi Delta led to greater uptake than CHW-facilitated screening at the Health Department, and may be cost-effective. IMPACT We evaluated the cost-effectiveness of an HPV self-collection intervention to reduce disparities.
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Affiliation(s)
- Nicole G Campos
- Department of Health Policy and Management, Harvard T.H. Chan School of Public Health, Boston, Massachusetts.
| | - Isabel C Scarinci
- Division of Preventive Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Laura Tucker
- Mississippi State Department of Health, Jackson, Mississippi
| | - Sylvia Peral
- Division of Preventive Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Yufeng Li
- Division of Preventive Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Mary Caroline Regan
- Department of Health Policy and Management, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Stephen Sy
- Department of Health Policy and Management, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Philip E Castle
- Division of Cancer Prevention, National Cancer Institute, National Institutes of Health, Rockville, Maryland
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, Maryland
| | - Jane J Kim
- Department of Health Policy and Management, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
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