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Dlamini Z, Molefi T, Khanyile R, Mkhabele M, Damane B, Kokoua A, Bida M, Saini KS, Chauke-Malinga N, Luvhengo TE, Hull R. From Incidence to Intervention: A Comprehensive Look at Breast Cancer in South Africa. Oncol Ther 2024; 12:1-11. [PMID: 37910378 PMCID: PMC10881925 DOI: 10.1007/s40487-023-00248-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Accepted: 09/27/2023] [Indexed: 11/03/2023] Open
Abstract
The formidable impact of breast cancer extends globally, with South Africa facing pronounced challenges, including significant disparities in breast cancer screening, treatment and survival along ethnic and socioeconomic lines. Over the last two decades, breast cancer incidence has increased and now accounts for a substantial portion of cancers in women. Ethnic disparities in terms of screening, incidence and survival exacerbate the issue, leading to delayed diagnosis among Black patients and highlighting healthcare inequities. These concerning trends underscore the urgency of enhancing breast cancer screening while mitigating treatment delays, although obstacles within the healthcare system impede progress. The intersection of breast cancer and human immunodeficiency virus (HIV) further complicates matters and particularly affects the Black population. Tackling the aforementioned disparities in breast cancer in South Africa mandates a multifaceted strategy. Robust screening efforts, particularly those targeting marginalised communities, are crucial for early detection. Concurrently, expedited treatment initiation is imperative. Addressing HIV-related complexities requires tailored interventions to ensure effective care. These multifaceted disparities require pan African research and cooperation as well as tailored interventions to enhance breast cancer care within the African region.
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Affiliation(s)
- Zodwa Dlamini
- SAMRC Precision Oncology Research Unit (PORU), DSI/NRF SARChI Chair in Precision Oncology and Cancer Prevention (POCP), Pan African Cancer Research Institute (PACRI), University of Pretoria, Pretoria, 0001, South Africa.
| | - Thulo Molefi
- SAMRC Precision Oncology Research Unit (PORU), DSI/NRF SARChI Chair in Precision Oncology and Cancer Prevention (POCP), Pan African Cancer Research Institute (PACRI), University of Pretoria, Pretoria, 0001, South Africa
- Department of Medical Oncology, Faculty of Health Sciences, Steve Biko Academic Hospital, University of Pretoria, Pretoria, 0001, South Africa
| | - Richard Khanyile
- SAMRC Precision Oncology Research Unit (PORU), DSI/NRF SARChI Chair in Precision Oncology and Cancer Prevention (POCP), Pan African Cancer Research Institute (PACRI), University of Pretoria, Pretoria, 0001, South Africa
- Department of Medical Oncology, Faculty of Health Sciences, Steve Biko Academic Hospital, University of Pretoria, Pretoria, 0001, South Africa
| | - Mahlori Mkhabele
- SAMRC Precision Oncology Research Unit (PORU), DSI/NRF SARChI Chair in Precision Oncology and Cancer Prevention (POCP), Pan African Cancer Research Institute (PACRI), University of Pretoria, Pretoria, 0001, South Africa
| | - Botle Damane
- SAMRC Precision Oncology Research Unit (PORU), DSI/NRF SARChI Chair in Precision Oncology and Cancer Prevention (POCP), Pan African Cancer Research Institute (PACRI), University of Pretoria, Pretoria, 0001, South Africa
- Department of Surgery, Steve Biko Academic Hospital, University of Pretoria, Pretoria, 0001, South Africa
| | - Alexandre Kokoua
- Laboratory of Anatomy, Experimental Surgery and Biomechanics (LANCEB), University of Félix Houphouët-Boigny, 01 BP V 166 Abidjan 01, Abidjan, Ivory Coast
| | - Meshack Bida
- SAMRC Precision Oncology Research Unit (PORU), DSI/NRF SARChI Chair in Precision Oncology and Cancer Prevention (POCP), Pan African Cancer Research Institute (PACRI), University of Pretoria, Pretoria, 0001, South Africa
- Department of Anatomical Pathology, National Health Laboratory Service (NHLS), University of Pretoria, Hatfield, 0028, South Africa
| | - Kamal S Saini
- Fortrea Inc, Durham, NC, USA
- Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Nkhensani Chauke-Malinga
- SAMRC Precision Oncology Research Unit (PORU), DSI/NRF SARChI Chair in Precision Oncology and Cancer Prevention (POCP), Pan African Cancer Research Institute (PACRI), University of Pretoria, Pretoria, 0001, South Africa
- Department of Plastic, Reconstructive and Aesthetic Surgery, Steve Biko Academic Hospital University of Pretoria, Hatfield, 0028, South Africa
| | - Thifhelimbilu Emmanuel Luvhengo
- Department of Surgery, Charlotte Maxeke Johannesburg Academic Hospital, University of the Witwatersrand, Parktown, Johannesburg, 2193, South Africa
| | - Rodney Hull
- SAMRC Precision Oncology Research Unit (PORU), DSI/NRF SARChI Chair in Precision Oncology and Cancer Prevention (POCP), Pan African Cancer Research Institute (PACRI), University of Pretoria, Pretoria, 0001, South Africa
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Tan SX, Pumpalova Y, Rogers AM, Bhatt K, Herbst C, Ruff P, Neugut AI, Hur C. Cost-effectiveness of adjuvant chemotherapy for high-risk stage II and stage III colon cancer in South Africa. Cancer Med 2023; 12:15515-15529. [PMID: 37318753 PMCID: PMC10417185 DOI: 10.1002/cam4.6199] [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: 08/24/2022] [Revised: 03/30/2023] [Accepted: 05/23/2023] [Indexed: 06/16/2023] Open
Abstract
BACKGROUND Colon cancer incidence is rising in low- and middle-income countries (LMICs), where resource limitations and cost often dictate treatment decisions. In this study, we evaluate the cost-effectiveness of adjuvant chemotherapy for high-risk stage II and stage III colon cancer treatment in South Africa (ZA) and illustrate how such analyses can inform cancer treatment recommendations in a LMIC. METHODS We created a decision-analytic Markov model to compare lifetime costs and outcomes for patients with high-risk stage II and stage III colon cancer treated with three adjuvant chemotherapy regimens in a public hospital in ZA: capecitabine and oxaliplatin (CAPOX) for 3 and 6 months, and capecitabine for 6 months, compared to no adjuvant treatment. The primary outcome was the incremental cost-effectiveness ratio (ICER) in international dollars (I$) per disability-adjusted life-year (DALY) averted, at a willingness-to-pay (WTP) threshold equal to the 2021 ZA gross domestic product per capita (I$13,764/DALY averted). RESULTS CAPOX for 3 months was cost-effective for both patients with high-risk stage II and patients with stage III colon cancer (ICER = I$250/DALY averted and I$1042/DALY averted, respectively), compared to no adjuvant chemotherapy. In subgroup analyses of patients by tumor stage and number of positive lymph nodes, for patients with high-risk stage II colon cancer and T4 tumors, and patients with stage III colon cancer with T4 or N2 disease. CAPOX for 6 months was cost-effective and the optimal strategy. The optimal strategy in other settings will vary by local WTP thresholds. Decision analytic tools can be used to identify cost-effective cancer treatment strategies in resource-constrained settings. CONCLUSION Colon cancer incidence is increasing in low- and middle-income countries, including South Africa, where resource constraints can impact treatment decisions. This cost-effectiveness study evaluates three systemic adjuvant chemotherapy options, compared to surgery alone, for patients in South African public hospitals after surgical resection for high-risk stage II and stage III colon cancer. Doublet adjuvant chemotherapy (capecitabine and oxaliplatin) for 3 months is the cost-effective strategy and should be recommended in South Africa.
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Affiliation(s)
- Sarah Xinhui Tan
- Department of Medicine, Vagelos College of Physicians and SurgeonsColumbia UniversityNew YorkNew YorkUSA
| | - Yoanna Pumpalova
- Department of Medicine, Vagelos College of Physicians and SurgeonsColumbia UniversityNew YorkNew YorkUSA
| | - Alexandra M. Rogers
- Department of Medicine, Vagelos College of Physicians and SurgeonsColumbia UniversityNew YorkNew YorkUSA
| | - Kishan Bhatt
- Department of Medicine, Vagelos College of Physicians and SurgeonsColumbia UniversityNew YorkNew YorkUSA
| | - Candice‐lee Herbst
- Department of Internal Medicine, Faculty of Health SciencesUniversity of the WitwatersrandJohannesburgSouth Africa
| | - Paul Ruff
- Noncommunicable Diseases Research Division, Wits Health Consortium (PTY) LtdJohannesburgSouth Africa
- SAMRC/Wits Developmental Pathways to Health Research Unit, Department of Paediatrics, Faculty of the Health SciencesUniversity of the WitwatersrandJohannesburgSouth Africa
- Division of Medical Oncology, Department of Medicine, Faculty of Health SciencesUniversity of the WitwatersrandJohannesburgSouth Africa
| | - Alfred I. Neugut
- Department of Medicine, Vagelos College of Physicians and SurgeonsColumbia UniversityNew YorkNew YorkUSA
- Herbert Irving Comprehensive Cancer Center, Vagelos College of Physicians and SurgeonsColumbia UniversityNew YorkNew YorkUSA
- Department of Epidemiology, Mailman School of Public HealthColumbia UniversityNew YorkNew YorkUSA
| | - Chin Hur
- Department of Medicine, Vagelos College of Physicians and SurgeonsColumbia UniversityNew YorkNew YorkUSA
- Herbert Irving Comprehensive Cancer Center, Vagelos College of Physicians and SurgeonsColumbia UniversityNew YorkNew YorkUSA
- Department of Epidemiology, Mailman School of Public HealthColumbia UniversityNew YorkNew YorkUSA
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Pumpalova Y, Rogers AM, Tan SX, Herbst CL, Ruff P, Neugut AI, Hur C. Modeling the Cost-Effectiveness of Adjuvant Chemotherapy for Stage III Colon Cancer in South African Public Hospitals. JCO Glob Oncol 2021; 7:1730-1741. [PMID: 34936375 PMCID: PMC8710350 DOI: 10.1200/go.21.00279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE Cancer incidence is rising in low- and middle-income countries, where resource constraints often complicate therapeutic decisions. Here, we perform a cost-effectiveness analysis to identify the optimal adjuvant chemotherapy strategy for patients with stage III colon cancer treated in South African (ZA) public hospitals. METHODS A decision-analytic Markov model was developed to compare lifetime costs and outcomes for patients with stage III colon cancer treated with six adjuvant chemotherapy regimens in ZA public hospitals: fluorouracil, leucovorin, and oxaliplatin for 3 and 6 months; capecitabine and oxaliplatin (CAPOX) for 3 and 6 months; capecitabine for 6 months; and fluorouracil/leucovorin for 6 months. Transition probabilities were derived from clinical trials to estimate risks of toxicity, disease recurrence, and survival. Societal costs and utilities were obtained from literature. The primary outcome was the incremental cost-effectiveness ratio in international dollars (I$) per disability-adjusted life-year (DALY) averted, compared with no therapy, at a willingness-to-pay (WTP) threshold of I$13,006.56. RESULTS CAPOX for 3 months was cost-effective (I$5,381.17 and 5.74 DALYs averted) compared with no adjuvant chemotherapy. Fluorouracil, leucovorin, and oxaliplatin for 6 months was on the efficiency frontier with 5.91 DALYs averted but, with an incremental cost-effectiveness ratio of I$99,021.36/DALY averted, exceeded the WTP threshold. CONCLUSION In ZA public hospitals, CAPOX for 3 months is the cost-effective adjuvant treatment for stage III colon cancer. The optimal strategy in other settings may change according to local WTP thresholds. Decision analytic tools can play a vital role in selecting cost-effective cancer therapeutics in resource-constrained settings.
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Affiliation(s)
- Yoanna Pumpalova
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
| | - Alexandra M Rogers
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
| | - Sarah Xinhui Tan
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
| | - Candice-Lee Herbst
- Department of Internal Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Paul Ruff
- Noncommunicable Diseases Research Division, Wits Health Consortium (PTY) Ltd, Johannesburg, South Africa.,SAMRC/Wits Developmental Pathways to Health Research Unit, Department of Paediatrics, Faculty of the Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.,Division of Medical Oncology, Department of Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Alfred I Neugut
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY.,Herbert Irving Comprehensive Cancer Center, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY.,Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY
| | - Chin Hur
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY.,Herbert Irving Comprehensive Cancer Center, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY.,Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY
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Toma A, O'Neil D, Joffe M, Ayeni O, Nel C, van den Berg E, Nayler S, Cubasch H, Phakathi B, Buccimazza I, Čačala S, Ruff P, Norris S, Nietz S. Quality of Histopathological Reporting in Breast Cancer: Results From Four South African Breast Units. JCO Glob Oncol 2021; 7:72-80. [PMID: 33434068 PMCID: PMC8081479 DOI: 10.1200/go.20.00402] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
PURPOSE High-quality histopathology reporting forms the basis for treatment decisions. The quality indicator for pathology reports from the European Society of Breast Cancer Specialists was applied to a cohort from four South African breast units. METHODS The study included 1,850 patients with invasive breast cancer and evaluated 1,850 core biopsies and 1,158 surgical specimen reports with cross-center comparisons. A core biopsy report required histologic type; tumor grade; and estrogen receptor, progesterone receptor, and human epidermal growth factor receptor 2 (HER2) status, with a confirmatory test for equivocal HER2 results. Ki-67 was regarded as optional. Pathologic stage, tumor size, lymphovascular invasion, and distance to nearest invasive margin were mandatory for surgical specimens. Specimen turnaround time (TAT) was added as a locally relevant indicator. RESULTS Seventy-five percent of core biopsy and 74.3% of surgical specimen reports were complete but showed large variability across study sites. The most common reason for an incomplete core biopsy report was missing tumor grade (17.9%). Half of the equivocal HER2 results lacked confirmatory testing (50.6%). Ki-67 was reported in 89.3%. For surgical specimens, the closest surgical margin was reported in 78.1% and lymphovascular invasion in 84.8% of patients. Mean TAT was 11.9 days (standard deviation [SD], 10.8 days) for core biopsies and 16.1 days (SD, 11.3) for surgical specimens. CONCLUSION Histopathology reporting is at a high level but can be improved, especially for tumor grade, HER2, and Ki-67, as is reporting of margins and lymphovascular invasion. A South African pathology consensus will reduce variability among laboratories. Routine use of standardized data sheets with synoptic reports and ongoing audits will improve completeness of reports over time.
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Affiliation(s)
- Armand Toma
- Department of Surgery, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Daniel O'Neil
- Sylvester Comprehensive Cancer Center, University of Miami Health System, Miami, FL
| | - Maureen Joffe
- Noncommunicable Diseases Research Division, Wits Health Consortium, Johannesburg, South Africa.,South African Medical Research Council/Wits Developmental Pathways for Health Research Unit, Department of Paediatrics, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Oluwatosin Ayeni
- Noncommunicable Diseases Research Division, Wits Health Consortium, Johannesburg, South Africa.,South African Medical Research Council/Wits Developmental Pathways for Health Research Unit, Department of Paediatrics, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Carolina Nel
- Department of Anatomical Pathology, University of the Witwatersrand, National Health Laboratory Service, Johannesburg, South Africa
| | - Eunice van den Berg
- Department of Anatomical Pathology, University of the Witwatersrand, National Health Laboratory Service, Johannesburg, South Africa
| | - Simon Nayler
- Wits Donald Gordon Medical Centre, Johannesburg, South Africa
| | - Herbert Cubasch
- Department of Surgery, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.,Noncommunicable Diseases Research Division, Wits Health Consortium, Johannesburg, South Africa
| | - Boitumelo Phakathi
- Department of Surgery, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Ines Buccimazza
- Department of Surgery, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Sharon Čačala
- Department of Surgery, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Paul Ruff
- Noncommunicable Diseases Research Division, Wits Health Consortium, Johannesburg, South Africa.,Division of Medical Oncology, Department of Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Shane Norris
- Noncommunicable Diseases Research Division, Wits Health Consortium, Johannesburg, South Africa.,South African Medical Research Council/Wits Developmental Pathways for Health Research Unit, Department of Paediatrics, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Sarah Nietz
- Department of Surgery, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.,Noncommunicable Diseases Research Division, Wits Health Consortium, Johannesburg, South Africa
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Davey S, Grover S, Bilker WB, Setlhako DI, Ralefala TB, Manshimba P, Gross R, DeMichele A, Shulman LN, Martei YM. Retrospective cohort analysis of prescription patterns of cancer medications during periods of drug stockouts in Botswana. BMJ Open 2021; 11:e049574. [PMID: 34253674 PMCID: PMC8276292 DOI: 10.1136/bmjopen-2021-049574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE Cancer drug stockouts occur at high frequencies globally, however, their effects on treatment are understudied in sub-Saharan Africa (SSA). We aimed to determine whether causes of suboptimal cancer treatment prescriptions differed between periods of stockout and full treatment supply. DESIGN A retrospective cohort study of systemic therapy prescriptions for patients diagnosed with the twelve most common solid tumour cancers treated in 2016. SETTING Princess Marina Hospital in Gaborone, Botswana. PARTICIPANTS Patients in the retrospective cohort who experienced any suboptimal treatment events, defined as ≥7 days delay or switch from guideline-concordant initiated therapy. PRIMARY AND SECONDARY OUTCOME MEASURES Frequency of delays and patterns of prescription changes for specific regimens and cancer types. RESULTS 167/378 patients contributed to 320 suboptimal events (115 therapy switches, 167 delays and 38 events with both), over 1452 total chemotherapy cycles received. Events during stockout were 43% delays, 43% switches and 14% both during stockout periods and 67.2% delays, 24.4% switches and 8.4% both during non-stockout periods (p<0.001). Majority of switches involved de-escalation of initially prescribed guideline-recommended regimens in patients with breast cancer, Kaposi sarcoma and patients with colorectal cancer, which occurred more frequently during periods of drug stockouts. Among patients with breast cancer, substitution of docetaxel for paclitaxel event occurred exclusively during paclitaxel drug stockout. Delays of ≥7 days events were most frequent in breast cancer patients receiving paclitaxel during stockout, and combination doxorubicin and cyclophosphamide even during periods of non-stockout. CONCLUSIONS The aetiology of suboptimal events differed during stockout and non-stockout periods. Prescription patterns that involved de-escalation of initiated therapy and substitution of paclitaxel with docetaxel occurred frequently during periods of drug stockout. Further research needs to be conducted to understand the impact of stockout on survival and barriers to maintaining essential cancer medicines supplies in SSA, and the factors driving frequent delays in therapy delivery.
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Affiliation(s)
- Sonya Davey
- Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Surbhi Grover
- Department of Radiation Oncology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Warren B Bilker
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Dipho I Setlhako
- Oncology Department, Princess Marina Hospital, Gaborone, Botswana
| | | | | | - Robert Gross
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Department of Medicine (Infectious Diseases), University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Angela DeMichele
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Department of Medicine (Hematology-Oncology), University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Lawrence N Shulman
- Department of Medicine (Hematology-Oncology), University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Yehoda M Martei
- Department of Medicine (Hematology-Oncology), University of Pennsylvania, Philadelphia, Pennsylvania, USA
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Nietz S, Ruff P, Chen WC, O'Neil DS, Norris SA. Quality indicators for the diagnosis and surgical management of breast cancer in South Africa. Breast 2020; 54:187-196. [PMID: 33120084 PMCID: PMC7593621 DOI: 10.1016/j.breast.2020.09.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 09/19/2020] [Accepted: 09/25/2020] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION Quality indicators (QIs) for breast cancer care have been developed and applied in high-income countries and contributed to improved quality of care and patient outcomes over time. MATERIALS AND METHODS A modified Delphi process was used to derive expert consensus. Potential QIs were rated by a panel of 17 breast cancer experts from various subspecialties and across South African provinces. Each QI was rated according to importance to measure, scientific acceptability and feasibility. Scoring ranged from 1 (no agreement) to 5 (strong agreement). Inclusion thresholds were set a priori at mean ratings ≥4 with a coefficient variation of ≥25%. Levels of evidence were determined for each indicator. RESULTS The literature review identified 790 potential QIs. After categorisation and removal of duplicates, 52 remained for panel review. There was strong consensus for 47 which were merged to 30 QIs by exclusion of similar indicators and indicator grouping. The final set included eight QIs with level I or II evidence and two QIs with level III evidence which were deemed "mandatory" due to clinical priority and impact on care. The remaining QIs with lower-level evidence were grouped as eight "recommended" QIs (regarded as standard of care) and twelve "optional" QIs (not regarded as standard of care). CONCLUSION A regional set of QIs was developed to facilitate standardised treatment and auditing of surgical care for breast cancer patients in South Africa. Routine monitoring of the ten mandatory QIs, which were selected to have the most substantial impact on patient outcome, is proposed.
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Affiliation(s)
- Sarah Nietz
- Department of Surgery, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa; Noncommunicable Diseases Research Division, Wits Health Consortium (PTY) Ltd, Johannesburg, South Africa.
| | - Paul Ruff
- Noncommunicable Diseases Research Division, Wits Health Consortium (PTY) Ltd, Johannesburg, South Africa; Division of Medical Oncology, Department of Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Wenlong Carl Chen
- Noncommunicable Diseases Research Division, Wits Health Consortium (PTY) Ltd, Johannesburg, South Africa; National Cancer Registry, National Health Laboratory Service, Johannesburg, South Africa; Sydney Brenner Institute for Molecular Bioscience, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Daniel S O'Neil
- Sylvester Comprehensive Cancer Center, University of Miami Health System, Miami, USA; Department of Medicine, University of Miami Leonard M. Miller School of Medicine, Miami, USA
| | - Shane A Norris
- Noncommunicable Diseases Research Division, Wits Health Consortium (PTY) Ltd, Johannesburg, South Africa; SAMRC/Wits Developmental Pathways for Health Research Unit, Department of Paediatrics, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
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7
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Nietz S, O'Neil DS, Ayeni O, Chen WC, Joffe M, Jacobson JS, Neugut AI, Ruff P, Mapanga W, Buccimazza I, Singh U, Čačala S, Stopforth L, Phakathi B, Chirwa T, Cubasch H. A comparison of complete pathologic response rates following neoadjuvant chemotherapy among South African breast cancer patients with and without concurrent HIV infection. Breast Cancer Res Treat 2020; 184:861-872. [PMID: 32875480 DOI: 10.1007/s10549-020-05889-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 08/17/2020] [Indexed: 12/12/2022]
Abstract
PURPOSE Among patients diagnosed with breast cancer (BC), women also living with HIV (WLWH) have worse survival than women without HIV. Chronic HIV infection may interfere with the effectiveness of BC treatment, contributing to this disparity. We attempted to determine the impact of HIV infection on response to neoadjuvant chemotherapy (NACT) among South African women with BC. METHODS We evaluated women from the South African Breast Cancer and HIV Outcomes cohort study who had stage I-III disease, initiated NACT, underwent definitive breast surgery, and had available surgical pathology reports. We compared pathologic complete response (pCR) rates among women with and without HIV infection, using multivariable logistic regression to control for differences in tumor characteristics. We also evaluated the impact of HIV infection on pCR within subgroups based on patient and tumor factors. RESULTS Of 715 women, the 173 (24.2%) WLWH were less likely to achieve pCR than women without HIV (8.7% vs 16.4%, [odds ratio (OR) 0.48, 95% confidence interval (95% CI) 0.27-0.86]). WLWH continued to have lower likelihood of achieving pCR on multivariable analysis (OR 0.52, 95% CI 0.28-0.98). A similar pattern was seen within subgroups, although HIV infection appeared to affect pCR more in ER/PR-positive BC (OR 0.24, 95% CI 0.08-0.71) than in ER/PR-negative BC (OR 0.94, 95% CI 0.39-2.29). CONCLUSION WLWH were less like to achieve pCR following NACT for BC than women without HIV. This reduced response to systemic therapy may contribute to the poorer BC outcomes seen in WLWH.
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Affiliation(s)
- Sarah Nietz
- Department of Surgery, Faculty of Health Sciences, University of Witwatersrand, 7 York Rd, Parktown, Johannesburg, 2193, Gauteng, South Africa
| | - Daniel S O'Neil
- Sylvester Comprehensive Cancer Center, University of Miami Health System, 1121 NW 14th Street, SMOB, Rm 245B, Miami, FL, 33150, USA. .,Department of Medicine, University of Miami Leonard M. Miller School of Medicine, Miami, USA.
| | - Oluwatosin Ayeni
- SAMRC/Wits Developmental Pathways for Health Research Unit, Department of Pediatrics, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.,Noncommunicable Diseases Research Division, Wits Health Consortium (PTY) Ltd, 31 Princess of Wales Terrace, Parktown, Johannesburg, 2193, South Africa
| | - Wenlong Carl Chen
- Noncommunicable Diseases Research Division, Wits Health Consortium (PTY) Ltd, 31 Princess of Wales Terrace, Parktown, Johannesburg, 2193, South Africa.,National Cancer Registry, National Health Laboratory Service, Johannesburg, South Africa.,Sydney Brenner Institute for Molecular Bioscience, Faculty of Health Sciences, University of the Witwatersrand, 9 Jubilee Road, Parktown, Johannesburg, 2193, South Africa
| | - Maureen Joffe
- SAMRC/Wits Developmental Pathways for Health Research Unit, Department of Pediatrics, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.,Noncommunicable Diseases Research Division, Wits Health Consortium (PTY) Ltd, 31 Princess of Wales Terrace, Parktown, Johannesburg, 2193, South Africa.,South Africa Medical Research Council Common Epithelial Cancers Research Centre, University of Witwatersrand, Johannesburg, South Africa
| | - Judith S Jacobson
- Herbert Irving Comprehensive Cancer Center, College of Physicians and Surgeons, Columbia University, New York, USA.,Department of Epidemiology, Mailman School of Public Health, Columbia University, 722 W 168th Street, Room 732, New York, NY, 10032, USA
| | - Alfred I Neugut
- Herbert Irving Comprehensive Cancer Center, College of Physicians and Surgeons, Columbia University, New York, USA.,Department of Epidemiology, Mailman School of Public Health, Columbia University, 722 W 168th Street, Room 732, New York, NY, 10032, USA.,Division of Medical Oncology, Columbia University Medical Center, 722 W 168th Street, Room 725, New York, NY, 10032, USA
| | - Paul Ruff
- Noncommunicable Diseases Research Division, Wits Health Consortium (PTY) Ltd, 31 Princess of Wales Terrace, Parktown, Johannesburg, 2193, South Africa.,Department of Medicine, Faculty of Health Sciences, University of Witwatersrand, 7 York Road, Parktown, Johannesburg, 2193, South Africa
| | - Witness Mapanga
- Noncommunicable Diseases Research Division, Wits Health Consortium (PTY) Ltd, 31 Princess of Wales Terrace, Parktown, Johannesburg, 2193, South Africa
| | - Ines Buccimazza
- Departments of Surgery and Oncology, Inkosi Albert Luthuli Central Hospital, Private Bag X03, Mayville, Durban, 4058, South Africa
| | - Urishka Singh
- Departments of Surgery and Oncology, Inkosi Albert Luthuli Central Hospital, Private Bag X03, Mayville, Durban, 4058, South Africa
| | - Sharon Čačala
- Departments of Surgery and Oncology, Grey's Hospital, University of KwaZulu Natal, Townbush Road, Pietermaritzburg, 3100, KZN, South Africa.,Department of Surgery, Ngwelezana Hospital, Thanduyise Road, Empangeni, 3880, KZN, South Africa
| | - Laura Stopforth
- Departments of Surgery and Oncology, Grey's Hospital, University of KwaZulu Natal, Townbush Road, Pietermaritzburg, 3100, KZN, South Africa
| | - Boitumelo Phakathi
- Department of Surgery, Faculty of Health Sciences, University of Witwatersrand, 7 York Rd, Parktown, Johannesburg, 2193, Gauteng, South Africa
| | - Tobias Chirwa
- Noncommunicable Diseases Research Division, Wits Health Consortium (PTY) Ltd, 31 Princess of Wales Terrace, Parktown, Johannesburg, 2193, South Africa.,School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, 27 St Andrews Road, Parktown, Johannesburg, 2193, South Africa
| | - Herbert Cubasch
- Department of Surgery, Faculty of Health Sciences, University of Witwatersrand, 7 York Rd, Parktown, Johannesburg, 2193, Gauteng, South Africa.,Noncommunicable Diseases Research Division, Wits Health Consortium (PTY) Ltd, 31 Princess of Wales Terrace, Parktown, Johannesburg, 2193, South Africa
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