1
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Hoog CJPO', Mehra N, Maliepaard M, Bol K, Gelderblom H, Sonke GS, de Langen AJ, van de Donk NWCJ, Janssen JJWM, Minnema MC, van Erp NP, Boerrigter E. Dose selection of novel anticancer drugs: exposing the gap between selected and required doses. Lancet Oncol 2024; 25:e340-e351. [PMID: 39089312 DOI: 10.1016/s1470-2045(24)00134-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 02/23/2024] [Accepted: 02/27/2024] [Indexed: 08/03/2024]
Abstract
Historically, dose selection of anticancer drugs has mainly been based on establishing the maximum tolerated dose in phase 1 clinical trials with a traditional 3 plus 3 design. In the era of targeted therapies and immune-modulating agents, this approach does not necessarily lead to selection of the most favourable dose. This strategy can introduce potentially avoidable toxicity or inconvenience for patients. Multiple changes in drug development could lead to more rational dose selection, such as use of better predictive preclinical models, adaptive and randomised trial design, evaluation of multiple dose levels in late-phase development, assessment of target activity and saturation, and early biomarker use for efficacy and safety evaluation. In this Review, we evaluate the rationale and validation of dose selection in each phase of drug development for anticancer drugs approved by the European Medicines Agency and US Food and Drug Administration from Jan 1, 2020, to June 30, 2023, and give recommendations for dose optimisation to improve safety and patient convenience. In our evaluation, we classified 20 (65%) of the 31 recently registered anticancer agents as potential candidates for dose optimisation, which could be achieved either by reducing the dose (n=10 [32%]) or adjusting the dosage regimen (n=10 [32%]). Dose selection seemed to be adequately justified for nine (29%) of the drugs, whereas the reviewed data were inconclusive for formulating a recommendation on dose optimisation for two (6%) of the drugs.
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Affiliation(s)
| | - Niven Mehra
- Department of Medical Oncology, Radboud University Medical Center, Nijmegen, Netherlands
| | - Marc Maliepaard
- Department of Pharmacology and Toxicology, Radboud University Medical Center, Nijmegen, Netherlands; Dutch Medicines Evaluation Board (CBG-MEB), Utrecht, Netherlands
| | - Kalijn Bol
- Department of Medical Oncology, Radboud University Medical Center, Nijmegen, Netherlands
| | - Hans Gelderblom
- Department of Medical Oncology, Leiden University Medical Center, Leiden, Netherlands
| | - Gabe S Sonke
- Department of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Adrianus J de Langen
- Department of Thoracic Oncology, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Niels W C J van de Donk
- Department of Hematology, Amsterdam University Medical Center, location Vrije Universiteit Amsterdam, Cancer Center Amsterdam, Amsterdam, Netherlands
| | - Jeroen J W M Janssen
- Department of Hematology, Radboud University Medical Center, Nijmegen, Netherlands
| | - Monique C Minnema
- Department of Hematology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Nielka P van Erp
- Department of Pharmacy, Radboud University Medical Center, Nijmegen, Netherlands.
| | - Emmy Boerrigter
- Department of Pharmacy, Radboud University Medical Center, Nijmegen, Netherlands
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2
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Loibl S, André F, Bachelot T, Barrios CH, Bergh J, Burstein HJ, Cardoso MJ, Carey LA, Dawood S, Del Mastro L, Denkert C, Fallenberg EM, Francis PA, Gamal-Eldin H, Gelmon K, Geyer CE, Gnant M, Guarneri V, Gupta S, Kim SB, Krug D, Martin M, Meattini I, Morrow M, Janni W, Paluch-Shimon S, Partridge A, Poortmans P, Pusztai L, Regan MM, Sparano J, Spanic T, Swain S, Tjulandin S, Toi M, Trapani D, Tutt A, Xu B, Curigliano G, Harbeck N. Early breast cancer: ESMO Clinical Practice Guideline for diagnosis, treatment and follow-up. Ann Oncol 2024; 35:159-182. [PMID: 38101773 DOI: 10.1016/j.annonc.2023.11.016] [Citation(s) in RCA: 43] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 11/21/2023] [Accepted: 11/28/2023] [Indexed: 12/17/2023] Open
Affiliation(s)
- S Loibl
- GBG Forschungs GmbH, Neu-Isenburg; Centre for Haematology and Oncology, Bethanien, Frankfurt, Germany
| | - F André
- Breast Cancer Unit, Medical Oncology Department, Gustave Roussy, Cancer Campus, Villejuif
| | - T Bachelot
- Department of Medical Oncology, Centre Léon Bérard, Lyon, France
| | - C H Barrios
- Oncology Department, Latin American Cooperative Oncology Group and Oncoclínicas, Porto Alegre, Brazil
| | - J Bergh
- Department of Oncology-Pathology, Bioclinicum, Karolinska Institutet and Breast Cancer Centre, Karolinska Comprehensive Cancer Centre and University Hospital, Stockholm, Sweden
| | - H J Burstein
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, USA
| | - M J Cardoso
- Breast Unit, Champalimaud Foundation, Champalimaud Cancer Centre, Lisbon; Faculty of Medicine, Lisbon University, Lisbon, Portugal
| | - L A Carey
- Division of Medical Oncology, The University of North Carolina at Chapel Hill, Lineberger Comprehensive Cancer Center, Chapel Hill, USA
| | - S Dawood
- Department of Oncology, Mediclinic City Hospital, Dubai, UAE
| | - L Del Mastro
- Medical Oncology Clinic, IRCCS Ospedale Policlinico San Martino, Genoa; Department of Internal Medicine and Medical Specialities, School of Medicine, University of Genoa, Genoa, Italy
| | - C Denkert
- Institute of Pathology, Philipps-University Marburg and University Hospital Giessen and Marburg, Marburg
| | - E M Fallenberg
- Department of Diagnostic and Interventional Radiology, School of Medicine & Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - P A Francis
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia
| | - H Gamal-Eldin
- Department of Surgical Oncology, National Cancer Institute, Cairo University, Cairo, Egypt
| | - K Gelmon
- Department of Medical Oncology, British Columbia Cancer, Vancouver, Canada
| | - C E Geyer
- Department of Internal Medicine, Hillman Cancer Center, University of Pittsburgh, Pittsburgh, USA
| | - M Gnant
- Comprehensive Cancer Centre, Medical University of Vienna, Vienna, Austria
| | - V Guarneri
- Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova; Oncology 2 Unit, Istituto Oncologico Veneto IOV IRCCS, Padova, Italy
| | - S Gupta
- Department of Medical Oncology, Tata Memorial Centre, Mumbai, India
| | - S B Kim
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - D Krug
- Department of Radiation Oncology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - M Martin
- Hospital General Universitario Gregorio Maranon, Universidad Complutense, GEICAM, Madrid, Spain
| | - I Meattini
- Department of Radiation Oncology, Azienda Ospedaliero-Universitaria Careggi, Florence; Department of Experimental and Clinical Biomedical Sciences 'M. Serio', University of Florence, Florence, Italy
| | - M Morrow
- Breast Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, USA
| | - W Janni
- Department of Obstetrics and Gynaecology, University of Ulm, Ulm, Germany
| | - S Paluch-Shimon
- Sharett Institute of Oncology Department, Hadassah University Hospital & Faculty of Medicine Hebrew University, Jerusalem, Israel
| | - A Partridge
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, USA
| | - P Poortmans
- Department of Radiation Oncology, Iridium Netwerk, Antwerp; Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - L Pusztai
- Yale Cancer Center, Yale School of Medicine, New Haven
| | - M M Regan
- Division of Biostatistics, Dana-Farber Cancer Institute, Harvard Medical School, Boston
| | - J Sparano
- Department of Medicine, Division of Hematology/Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, USA
| | - T Spanic
- Europa Donna Slovenia, Ljubljana, Slovenia
| | - S Swain
- Medicine Department, Georgetown University Medical Centre and MedStar Health, Washington, USA
| | - S Tjulandin
- N.N. Blokhin National Medical Research Centre of Oncology, Moscow, Russia
| | - M Toi
- Tokyo Metropolitan Cancer and Infectious Disease Center, Komagome Hospital, Bunkyo-ku, Japan
| | - D Trapani
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, USA
| | - A Tutt
- Breast Cancer Research Division, The Institute of Cancer Research, London; Comprehensive Cancer Centre, Division of Cancer Studies, Kings College London, London, UK
| | - B Xu
- Department of Medical Oncology, National Cancer Centre/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - G Curigliano
- Early Drug Development for Innovative Therapies Division, Istituto Europeo di Oncologia, IRCCS, Milan; Department of Oncology and Hemato-Oncology, University of Milano, Milan, Italy
| | - N Harbeck
- Breast Centre, Department of Obstetrics & Gynaecology and Comprehensive Cancer Centre Munich, LMU University Hospital, Munich, Germany
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3
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Wadasadawala T, Joshi S, Rath S, Popat P, Sahay A, Gulia S, Bhargava P, Krishnamurthy R, Hoysal D, Shah J, Engineer M, Bajpai J, Kothari B, Pathak R, Jaiswal D, Desai S, Shet T, Patil A, Pai T, Haria P, Katdare A, Chauhan S, Siddique S, Vanmali V, Hawaldar R, Gupta S, Sarin R, Badwe R. Tata Memorial Centre Evidence Based Management of Breast cancer. Indian J Cancer 2024; 61:S52-S79. [PMID: 38424682 DOI: 10.4103/ijc.ijc_55_24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 01/31/2024] [Indexed: 03/02/2024]
Abstract
ABSTRACT The incidence of breast cancer is increasing rapidly in urban India due to the changing lifestyle and exposure to risk factors. Diagnosis at an advanced stage and in younger women are the most concerning issues of breast cancer in India. Lack of awareness and social taboos related to cancer diagnosis make women feel hesitant to seek timely medical advice. As almost half of women develop breast cancer at an age younger than 50 years, breast cancer diagnosis poses a huge financial burden on the household and impacts the entire family. Moreover, inaccessibility, unaffordability, and high out-of-pocket expenditure make this situation grimmer. Women find it difficult to get quality cancer care closer to their homes and end up traveling long distances for seeking treatment. Significant differences in the cancer epidemiology compared to the west make the adoption of western breast cancer management guidelines challenging for Indian women. In this article, we intend to provide a comprehensive review of the management of breast cancer from diagnosis to treatment for both early and advanced stages from the perspective of low-middle-income countries. Starting with a brief introduction to epidemiology and guidelines for diagnostic modalities (imaging and pathology), treatment has been discussed for early breast cancer (EBC), locally advanced, and MBC. In-depth information on loco-regional and systemic therapy has been provided focusing on standard treatment protocols as well as scenarios where treatment can be de-escalated or escalated.
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Affiliation(s)
- Tabassum Wadasadawala
- Department of Radiation Oncology, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Shalaka Joshi
- Department of Surgical Oncology, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Sushmita Rath
- Department of Medical Oncology, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Palak Popat
- Department of Radiology, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Ayushi Sahay
- Department of Pathology, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Seema Gulia
- Department of Medical Oncology, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Prabhat Bhargava
- Department of Medical Oncology, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Revathy Krishnamurthy
- Department of Radiation Oncology, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Dileep Hoysal
- Department of Surgical Oncology, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Jessicka Shah
- Department of Surgical Oncology, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Mitchelle Engineer
- Department of Surgical Oncology, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Jyoti Bajpai
- Department of Medical Oncology, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Bhavika Kothari
- Department of Surgical Oncology, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Rima Pathak
- Department of Radiation Oncology, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Dushyant Jaiswal
- Department of Plastic Surgery, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Sangeeta Desai
- Department of Pathology, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Tanuja Shet
- Department of Pathology, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Asawari Patil
- Department of Pathology, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Trupti Pai
- Department of Pathology, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Purvi Haria
- Department of Radiology, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Aparna Katdare
- Department of Radiology, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Sonal Chauhan
- Department of Radiology, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Shabina Siddique
- Department of Clinical Research Secretariat, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Vaibhav Vanmali
- Department of Clinical Research Secretariat, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Rohini Hawaldar
- Department of Clinical Research Secretariat, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Sudeep Gupta
- Department of Medical Oncology, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Rajiv Sarin
- Department of Radiation Oncology, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
| | - Rajendra Badwe
- Department of Surgical Oncology, Tata Memorial Centre and Homi Bhabha National Institute, Parel, Mumbai, Maharashtra, India
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4
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Gulia S, Kannan S, Ghosh J, Rath S, Maheshwari A, Gupta S. Secondary cytoreduction in platinum sensitive relapsed ovarian cancer: an individual patient level meta-analysis. Int J Gynecol Cancer 2023; 33:1440-1447. [PMID: 37567595 DOI: 10.1136/ijgc-2023-004342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/13/2023] Open
Abstract
OBJECTIVE To synthesize the role of secondary cytoreduction in recurrent ovarian cancer from the results of randomized studies. METHODS We conducted a meta-analysis of randomized controlled trials which compared secondary cytoreductive surgery versus no surgery in patients with platinum sensitive relapsed ovarian cancer. Individual patient data for overall survival and progression free survival were manually extracted from published survival curves, for whole study populations and subgroups based on completeness of surgical resection and bevacizumab use, using WebPlotDigitizer software. Overall survival and progression free survival curves for each study and the combined population were reconstructed from extracted data. RESULTS Three studies with 1249 patients were included, of whom complete resection was achieved in 427 (34.2%) patients. In individual patient data analysis of the whole study population with 562 deaths, there was no significant difference in overall survival between the surgery and no surgery groups (median 52.8 vs 52.1 months, respectively, hazard ratio (HR) 0.94, 95% confidence interval (CI) 0.80 to 1.11; p=0.5) but the surgery group had significantly longer progression free survival compared with the no surgery group (median 18.3 vs 14.4 months, respectively, HR 0.70, 95% CI 0.62 to 0.80; p<0.001). In subgroup analyses, overall survival was significantly longer in the complete cytoreduction subgroup compared with the no surgery group (median 62.0 vs 52.1 months, respectively, HR 0.70, 95% CI 0.57 to 0.92; p<0.001) while overall survival was significantly worse in the incomplete cytoreduction subgroup compared with the no surgery group (median 34.2 vs 52.1 months, respectively, HR 1.72, 95% CI 1.38 to 2.14; p<0.001). In the no bevacizumab subgroup, there was no significant overall survival difference between the surgery and no surgery groups (median 49.3 vs 47.0 months, HR 0.86, 95% CI 0.67 to 1.10; p=0.25). CONCLUSIONS Secondary cytoreductive surgery among women with platinum-sensitive relapsed ovarian cancer did not lead to significant benefit in overall survival although it increased progression free survival. However, overall survival was significantly longer among patients in whom complete cytoreduction was possible compared with no surgery.
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Affiliation(s)
- Seema Gulia
- Medical Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
- Homi Bhabha National Institute, Mumbai, India
| | - Sadhana Kannan
- Homi Bhabha National Institute, Mumbai, India
- Biostatistics, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - Jaya Ghosh
- Medical Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
- Homi Bhabha National Institute, Mumbai, India
| | - Sushmita Rath
- Medical Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
- Homi Bhabha National Institute, Mumbai, India
| | - Amita Maheshwari
- Homi Bhabha National Institute, Mumbai, India
- Gynecologic Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - Sudeep Gupta
- Medical Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
- Homi Bhabha National Institute, Mumbai, India
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Jacobson SI, Kacew AJ, Knoebel RW, Hsieh PH, Ratain MJ, Strohbehn GW. Alternative Trastuzumab Dosing Schedules Are Associated With Reductions in Health Care Greenhouse Gas Emissions. JCO Oncol Pract 2023; 19:799-807. [PMID: 37450776 PMCID: PMC10538895 DOI: 10.1200/op.23.00227] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 05/24/2023] [Accepted: 06/15/2023] [Indexed: 07/18/2023] Open
Abstract
PURPOSE Cancer care-related greenhouse gas (GHG) emissions harm human health. Many cancer drugs are administered at greater-than-necessary doses, frequencies, and durations. Alternative dosing strategies may enable reductions in cancer care GHG emissions without compromising patient outcomes. MATERIALS AND METHODS We used streamlined life-cycle analysis in a case-control simulation to estimate the relative reductions in GHG emissions that would be expected to result from using each of three alternative dosing strategies of trastuzumab (6-month adjuvant treatment duration, once every 4-week dosing, and both) in human epidermal growth factor receptor 2 (HER2)+ breast cancer. Using primary data and conversion factors from the environmental science literature, we estimated per-patient relative reduction in GHG emissions and, using SEER data, health impacts (in terms of disability-adjusted life-years [DALYs] and excess mortality per kg CO2) on bystanders for each alternative dosing strategy. RESULTS Compared with the trastuzumab dosing strategy commonly used at baseline (12-month duration of adjuvant therapy and once every 3-week dosing in all settings), adoption of both 6-month adjuvant trastuzumab and once every 4-week trastuzumab dosing would reduce GHG emissions by 4.5%, 18.7%, and 14.6% in the neoadjuvant, adjuvant, and metastatic settings, respectively. We estimate that US-based adoption of alternative trastuzumab dosing would reduce annual DALYs and excess lives lost due to environmental impact of US-based trastuzumab therapy for HER2+ breast cancer by 1.5 and 0.9, respectively. CONCLUSION Alternative dosing strategies may materially reduce the population health impacts of cancer care by reducing environmental impact. Regulatory decision making and health technology assessments should consider a treatment's environmental and population health impacts. Clinical trials of alternative dosing strategies are justified on the basis of environmental and population health impacts.
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Affiliation(s)
| | - Alec J. Kacew
- University of Chicago Pritzker School of Medicine, Chicago, IL
| | | | - Po-Hung Hsieh
- Committee on Clinical Pharmacology and Pharmacogenomics, University of Chicago, Chicago, IL
- United States Food and Drug Administration, Silver Spring, MD
| | - Mark J. Ratain
- Committee on Clinical Pharmacology and Pharmacogenomics, University of Chicago, Chicago, IL
- Department of Medicine, Section of Hematology/Oncology, University of Chicago, Chicago, IL
- Center for Personalized Therapeutics, The University of Chicago, Chicago, IL
| | - Garth W. Strohbehn
- University of Michigan Rogel Cancer Center, Ann Arbor, MI
- Veterans Affairs Center for Clinical Management Research, Ann Arbor, MI
- Division of Medical Oncology, LTC Charles S Kettles VA Medical Center, Ann Arbor, MI
- Division of Hematology/Oncology, Department of Medicine, University of Michigan, Ann Arbor, MI
- Center for Global Health Equity, University of Michigan, Ann Arbor, MI
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6
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Tannock IF, Bouche G, Goldstein DA, Goto Y, Lichter AS, Prabhash K, Ranganathan P, Saltz LB, Sonke GS, Strohbehn GW, von Moos R, Ratain MJ. Patient-centred, self-funding dose optimisation trials as a route to reduce toxicity, lower cost and improve access to cancer therapy. Ann Oncol 2023:S0923-7534(23)00687-7. [PMID: 37230253 DOI: 10.1016/j.annonc.2023.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 05/05/2023] [Accepted: 05/09/2023] [Indexed: 05/27/2023] Open
Affiliation(s)
- Ian F Tannock
- Division of Medical Oncology, Princess Margaret Cancer Centre and University of Toronto, Toronto, ON, Canada; Optimal Cancer Care Alliance, Ann Arbor, MI, USA.
| | - Gauthier Bouche
- Anticancer Fund, Meise, Belgium; Medical Research Council Clinical Trials Unit at University College London, London, United Kingdom
| | - Daniel A Goldstein
- Optimal Cancer Care Alliance, Ann Arbor, MI, USA; Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yasushi Goto
- Department of Thoracic Oncology, National Cancer Center Hospital, Chuo-ku, Tokyo, Japan
| | | | - Kumar Prabhash
- Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, India
| | | | - Leonard B Saltz
- Optimal Cancer Care Alliance, Ann Arbor, MI, USA; Gastrointestinal Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Gabe S Sonke
- Department of Medical Oncology, Antoni van Leeuwenhoek/Netherlands Cancer Institute, & University of Amsterdam, Amsterdam, The Netherlands
| | - Garth W Strohbehn
- Optimal Cancer Care Alliance, Ann Arbor, MI, USA; Rogel Cancer Center, University of Michigan; Section of Hematology Oncology, Veterans Affairs Ann Arbor Healthcare System; Veterans Affairs Center for Clinical Management Research, Ann Arbor, MI, USA
| | - Roger von Moos
- Department of Oncology/Hematology, Kantonsspital Graubünden, Chur, Switzerland & SAKK Competence Center, Bern
| | - Mark J Ratain
- Optimal Cancer Care Alliance, Ann Arbor, MI, USA; Section of Hematology/Oncology, Department of Medicine, The University of Chicago, Chicago, IL, USA
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7
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Gulia S, Kannan S, Ghosh J, Rath S, Maheshwari A, Gupta S. Maintenance therapy with a poly(ADP-ribose) polymerase inhibitor in patients with newly diagnosed advanced epithelial ovarian cancer: individual patient data and trial-level meta-analysis. ESMO Open 2022; 7:100558. [PMID: 36007449 PMCID: PMC9588903 DOI: 10.1016/j.esmoop.2022.100558] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 05/29/2022] [Accepted: 07/06/2022] [Indexed: 11/20/2022] Open
Abstract
Background We synthesize the efficacy and toxicity of poly(ADP-ribose) polymerase inhibitors (PARPis) in patients with newly diagnosed advanced ovarian cancer. Patients and methods We manually extracted individual patient data (IPD) for progression-free survival (PFS) from published survival curves of randomized controlled trials (RCTs) that compared PARPi versus placebo as maintenance therapy in first-line treatment, for whole study populations and subgroups, based on BRCA1/BRCA2 mutation (germline and/or somatic) and homologous recombination deficiency (HRD) status, using WebPlotDigitizer software. The respective PFS curves for each study and combined population were reconstructed from extracted IPD. The primary outcome was PFS in combined whole population and subgroups. Results In IPD analysis of combined population from three RCTs, with 2296 patients and 1287 events, PFS was significantly longer in PARPi versus placebo [median 20.4 (95% confidence interval (CI) 18.6-21.9) versus 14.9 (95% CI 13.9-16.5) months, respectively; hazard ratio (HR) 0.67, 95% CI 0.60-0.75; P < 0.001]. In IPD subgroup analyses from four eligible RCTs (2687 patients and 1485 events), median PFS was significantly longer in PARPi versus placebo arm, in the BRCA-mutated (45.7 versus 17.7 months, respectively; HR 0.38, 95% CI 0.32-0.46; P < 0.001), HRD-positive including BRCA-mutated (34.7 versus 17.9 months, respectively; HR 0.45, 95% CI 0.38-0.54; P < 0.001), and HRD positive excluding BRCA-mutated (22.3 versus 13.1 months, respectively; HR 0.47, 95% CI 0.34-0.65; P < 0.001) subgroups, but not in the HRD-negative (15.0 versus 11.3 months, respectively; HR 0.90, 95% CI 0.76-1.05; P = 0.75) subgroup. Results of trial-level meta-analysis were concordant with IPD analysis in whole population and subgroups. Conclusions Among newly diagnosed ovarian cancer patients, PARPi maintenance therapy significantly improves PFS in those with germline and/or somatic BRCA mutation and/or HRD-positive tumor but not in those with HRD-negative tumor. Maintenance PARPi resulted in significant PFS improvement in total population, but benefit varied in subgroups. PARPi showed PFS gain in BRCA-mutated (45.7 versus 17.7 m) and HRD-positive subgroups. No significant PFS benefit was seen in the HRD-negative subgroup (15.0 versus 11.3 months; P = 0.75). PARPi should be a standard treatment in newly diagnosed ovarian cancer patients except those with HRD-negative tumors.
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Affiliation(s)
- S Gulia
- Department of Medical Oncology, Tata Memorial Centre, Mumbai, India; Homi Bhabha National Institute, Mumbai, India
| | - S Kannan
- Homi Bhabha National Institute, Mumbai, India; Biostatistics, Tata Memorial Centre, Mumbai, India
| | - J Ghosh
- Department of Medical Oncology, Tata Memorial Centre, Mumbai, India; Homi Bhabha National Institute, Mumbai, India
| | - S Rath
- Department of Medical Oncology, Tata Memorial Centre, Mumbai, India; Homi Bhabha National Institute, Mumbai, India
| | - A Maheshwari
- Homi Bhabha National Institute, Mumbai, India; Gynecologic Oncology, Tata Memorial Centre, Mumbai, India
| | - S Gupta
- Department of Medical Oncology, Tata Memorial Centre, Mumbai, India; Homi Bhabha National Institute, Mumbai, India.
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Diallo M, Fall D, Mballo I, Niang CI, Charfi ME. [Direct medical costs of breast cancer treatment at the Joliot Curie Institute of the Aristide Le Dantec Hospital in Dakar, Senegal]. Pan Afr Med J 2022; 42:266. [PMID: 36338564 PMCID: PMC9617494 DOI: 10.11604/pamj.2022.42.266.32967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Accepted: 06/04/2022] [Indexed: 12/05/2022] Open
Abstract
INTRODUCTION in 2020, the incidence of breast cancer was 2261419 cases worldwide, 1186598 cases in Africa and 817 cases in Senegal. However, direct medical costs of cancer treatment are not known in Senegal. For a better resource allocation, it is important to estimate costs. The purpose of this study is to analyze direct medical costs of breast cancer treatment at the Joliot Curie Institute in Dakar. METHODS we conducted a retrospective study of patients diagnosed with breast cancer between January and December 2017 at the Joliot Curie Institute. A questionnaire survey and semi-structured interviews were conducted among patients and their relatives to reconstruct direct medical costs. RESULTS average direct medical costs of breast cancer treatment at the Joliot Curie Institute were $33 713.45 with a minimum of $1 495.15 and a maximum of $10 662.97 over an average period of 31 months. These costs include chemotherapy (29%); diagnosis (15%) and surgery (15%). Costs of radiotherapy and prescription medicines accounted for 13% for each procedure. Medical costs were related to educational level (p=0.05) and stage of disease (p=0.03). CONCLUSION direct medical costs of breast cancer treatment are very high in Senegal. Direct medical costs of maximum treatment is $10 662.97 and of minimum treatment is $495.15, reflecting an average cost of $3 713.45.
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Affiliation(s)
- Mory Diallo
- Institut Joliot Curie, Hôpital Aristide Le Dantec, Dakar, Sénégal,Corresponding author: Mory Diallo, Institut Joliot Curie, Hôpital Aristide Le Dantec, Dakar, Sénégal.
| | - Dieynaba Fall
- Institut Joliot Curie, Hôpital Aristide Le Dantec, Dakar, Sénégal
| | - Ibrahima Mballo
- Institut Joliot Curie, Hôpital Aristide Le Dantec, Dakar, Sénégal
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9
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Sengar M, Pramesh CS, Mehndiratta A, Shah S, Munshi A, Vijaykumar DK, Puri A, Mathew B, Arora RS, Kumari T P, Deodhar K, Menon S, Epari S, Shetty O, Cluzeau F. Ensuring quality in contextualised cancer management guidelines for resource-constraint settings: using a systematic approach. BMJ Glob Health 2022; 7:bmjgh-2022-009584. [PMID: 35985695 PMCID: PMC9396157 DOI: 10.1136/bmjgh-2022-009584] [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: 05/10/2022] [Accepted: 07/16/2022] [Indexed: 11/03/2022] Open
Abstract
To address the wide variation in access to cancer care in India requires strengthening of infrastructure, trained oncology workforce, and minimisation of out-of-pocket expenditures. However, even with major investments, it is unlikely to achieve the same level of infrastructure and expertise across the country. Therefore, a resource stratified approach driven by evidence-based and contextualised clinical guidelines is the need of the hour. The National Cancer Grid has been at the forefront of delivery of standardised cancer care through several of its initiatives, including the resource-stratified guidelines. Development of new guidelines is resource and time intensive, which may not be feasible and can delay the implementation. Adaptation of the existing standard guidelines using the transparent and well-documented methodology with involvement of all stakeholders can be one of the most reasonable pathways. However, the adaptation should be done keeping in mind the context, resource availability, budget impact, investment needed for implementation and acceptability by clinicians, patients, policymakers, and other stakeholders. The present paper provides the framework for systematically developing guidelines through adaptation and contextualisation. The process can be used for other health conditions in resource-constraint settings.
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Affiliation(s)
- Manju Sengar
- Tata Memorial Centre, Mumbai, India.,Homi Bhabha National Institute, Mumbai, India
| | - C S Pramesh
- Tata Memorial Centre, Mumbai, India .,Homi Bhabha National Institute, Mumbai, India
| | | | - Sudeep Shah
- P.D. Hinduja Hospital and Medical Research Centre, Mumbai, India
| | | | - D K Vijaykumar
- Amrita Institute of Medical Sciences, Cochin, Kerala, India
| | - Ajay Puri
- Tata Memorial Centre, Mumbai, India.,Homi Bhabha National Institute, Mumbai, India
| | - Beela Mathew
- Regional Cancer Centre, Thiruvananthapuram, Kerala, India
| | - Ramandeep Singh Arora
- Max Institute of Cancer Care, Max Super Speciality Hospital, New Delhi, New Delhi, India
| | - Priya Kumari T
- Regional Cancer Centre, Thiruvananthapuram, Kerala, India
| | - Kedar Deodhar
- Tata Memorial Centre, Mumbai, India.,Homi Bhabha National Institute, Mumbai, India
| | - Santosh Menon
- Tata Memorial Centre, Mumbai, India.,Homi Bhabha National Institute, Mumbai, India
| | - Sridhar Epari
- Tata Memorial Centre, Mumbai, India.,Homi Bhabha National Institute, Mumbai, India
| | - Omshree Shetty
- Tata Memorial Centre, Mumbai, India.,Homi Bhabha National Institute, Mumbai, India
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10
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Kumar R, Abreu C, Toi M, Saini S, Casimiro S, Arora A, Paul AM, Velaga R, Rameshwar P, Lipton A, Gupta S, Costa L. Oncobiology and treatment of breast cancer in young women. Cancer Metastasis Rev 2022; 41:749-770. [PMID: 35488982 DOI: 10.1007/s10555-022-10034-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 04/14/2022] [Indexed: 12/20/2022]
Abstract
Female breast cancer emerged as the leading cancer type in terms of incidence globally in 2020. Although mortality due to breast cancer has improved during the past three decades in many countries, this trend has reversed in women less than 40 years since the past decade. From the biological standpoint, there is consensus among experts regarding the clinically relevant definition of breast cancer in young women (BCYW), with an age cut-off of 40 years. The idea that breast cancer is an aging disease has apparently broken in the case of BCYW due to the young onset and an overall poor outcome of BCYW patients. In general, younger patients exhibit a worse prognosis than older pre- and postmenopausal patients due to the aggressive nature of cancer subtypes, a high percentage of cases with advanced stages at diagnosis, and a high risk of relapse and death in younger patients. Because of clinically and biologically unique features of BCYW, it is suspected to represent a distinct biologic entity. It is unclear why BCYW is more aggressive and has an inferior prognosis with factors that contribute to increased incidence. However, unique developmental features, adiposity and immune components of the mammary gland, hormonal interplay and crosstalk with growth factors, and a host of intrinsic and extrinsic risk factors and cellular regulatory interactions are considered to be the major contributing factors. In the present article, we discuss the status of BCYW oncobiology, therapeutic interventions and considerations, current limitations in fully understanding the basis and underlying cause(s) of BCYW, understudied areas of BCYW research, and postulated advances in the coming years for the field.
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Affiliation(s)
- Rakesh Kumar
- Cancer Research Institute, Himalayan Institute of Medical Sciences, Swami Rama Himalayan University, Dehradun, India. .,Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Trivandrum, India. .,Department of Medicine, Division of Hematology and Oncology, Rutgers New Jersey Medical School, Newark, NJ, USA. .,Department of Human and Molecular Genetics, Virginia Commonwealth University, School of Medicine, Richmond, VA, USA.
| | - Catarina Abreu
- Department of Medical Oncology, Hospital de Santa Maria- Centro Hospitalar Universitário Lisboa Norte, Lisbon, Portugal
| | - Masakazu Toi
- Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Sunil Saini
- Cancer Research Institute, Himalayan Institute of Medical Sciences, Swami Rama Himalayan University, Dehradun, India
| | - Sandra Casimiro
- Instituto de Medicina Molecular-João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal
| | - Anshika Arora
- Cancer Research Institute, Himalayan Institute of Medical Sciences, Swami Rama Himalayan University, Dehradun, India
| | - Aswathy Mary Paul
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Trivandrum, India
| | - Ravi Velaga
- Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Pranela Rameshwar
- Department of Medicine, Division of Hematology and Oncology, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Allan Lipton
- Hematology-Oncology, Department of Medicine, Penn State University School of Medicine, Hershey, PA, USA
| | - Sudeep Gupta
- Department of Medical Oncology, Tata Memorial Centre and Homi Bhabha National Institute, Mumbai, India
| | - Luis Costa
- Department of Medical Oncology, Hospital de Santa Maria- Centro Hospitalar Universitário Lisboa Norte, Lisbon, Portugal.,Instituto de Medicina Molecular-João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal
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11
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Efficacy of adjuvant trastuzumab in women with HER2-positive T1a or bN0M0 breast cancer: a population-based cohort study. Sci Rep 2022; 12:1068. [PMID: 35058536 PMCID: PMC8776836 DOI: 10.1038/s41598-022-05209-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 01/03/2022] [Indexed: 01/03/2023] Open
Abstract
Adjuvant trastuzumab has been associated with superior survival in women with ≥ T1c or node-positive HER2-positive early-stage breast cancer; however, there is a lack of phase III trials in women with T1a/bN0 disease. Our study aimed to assess the outcomes of women with HER2-positive T1a/bN0 breast cancer who received adjuvant trastuzumab in Saskatchewan, Canada. We evaluated all women diagnosed with HER2-positive T1a/bN0 breast cancer in Saskatchewan between 2008 and 2017. We performed Cox proportional multivariable analysis to determine factors correlated with survival. In addition, inverse probability treatment weighting (IPTW) using propensity score was performed to assess benefit of adjuvant trastuzumab. Ninety-one eligible women with a median age of 61 years (range 30–89) were identified. Thirty-nine (43%) women received adjuvant trastuzumab. Women who received trastuzumab were younger and had a higher rate of T1b disease. Overall, 3% of women who received trastuzumab compared to 12% of women who did not receive trastuzumab developed breast cancer recurrence (p = 0.23). Five-year disease-free survival (DFS) of women who received adjuvant trastuzumab was 94.8% compared to 82.7% of women who did not receive trastuzumab (p = 0.22). Five-year overall survival was 100% of women who received trastuzumab compared to 90.4% of women who did not receive adjuvant trastuzumab (p = 0.038). In the multivariable analysis, grade III tumors were correlated with inferior DFS (hazard ratio [HR] 5.5, 95% CI [1.7–17.7]). The propensity score using the inverse probability of treatment weighting showed that lack of adjuvant trastuzumab was correlated inferior DFS, with an HR of 4 (95% CI 1.05–15.5). Women with HER2-positive T1a/bN0 breast cancer had overall low recurrence of breast cancer. However, the results of this exploratory analysis indicate that women who received adjuvant trastuzumab had better survival.
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12
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Gupta N, Jyani G, Rajsekar K, Gupta R, Nagar A, Gedam P, Prinja S. Application of Health Technology Assessment for Oncology Care in India: Implications for Ayushman Bharat Pradhan Mantri Jan Aarogya Yojana. Indian J Med Paediatr Oncol 2021. [DOI: 10.1055/s-0041-1740536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
AbstractA health system is considered efficient when it provides maximum health gains to the population from the available resources. Newer drugs, diagnostics and treatment strategies aim to improve the health of the population, however, they come at an increased cost. Therefore, for an efficient health system, it needs to be decided if the extra cost being incurred is justified to achieve the extra health gains. In this regard, health technology assessment (HTA) helps to make evidence informed decisions by evaluating relative cost and benefits of the available interventions. Economic evidence generated by HTA can also be used in framing standard treatment guidelines (STGs) for high-cost cancer care. In multi-payer systems like India, the decisions regarding the clinical management of patients are taken based on the patients' ability to pay, which creates inequities in utilization of healthcare. Ayushman Bharat Pradhan Mantri Jan Aarogya Yojana (AB PM-JAY) offers an opportunity to ensure equity as it reduces financial barriers, besides having a potential to affect efficiency by including only cost-effective interventions in the benefit package. As a result, informed clinical decisions based upon HTA evidence can make cancer treatment more efficient, equitable and affordable for the patients.
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Affiliation(s)
- Nidhi Gupta
- Department of Radiation Oncology, Government Medical College and Hospital, Chandigarh, India
| | - Gaurav Jyani
- Department of Community Medicine and School of Public Health, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Kavitha Rajsekar
- Department of Health Research, Ministry of Health and Family Welfare, Government of India, New Delhi
| | - Rakesh Gupta
- Department of Women and Child Development, Government of India, New Delhi
| | - Anu Nagar
- Department of Health Research, Ministry of Health and Family Welfare, Government of India, New Delhi
| | - Praveen Gedam
- National Health Authority, Ministry of Health and Family Welfare, Government of India, New Delhi
| | - Shankar Prinja
- Department of Community Medicine and School of Public Health, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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Vanderpuye V, Dadzie MA, Huo D, Olopade OI. Assessment of Breast Cancer Management in Sub-Saharan Africa. JCO Glob Oncol 2021; 7:1593-1601. [PMID: 34843373 PMCID: PMC8624034 DOI: 10.1200/go.21.00282] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
PURPOSE To document progress and bottlenecks in breast cancer management in sub-Saharan Africa, subsequent to a 2013 pilot survey conducted through the African Organization for Research and Treatment in Cancer (AORTIC) network. METHODS An anonymous survey of breast cancer management was conducted in 2018 among AORTIC members. Results concerning respondent specialty, access to tumor boards, treatment accessibility, diagnostic services, and factors influencing treatment outcomes were compared with the 2013 findings. RESULTS Thirty-seven respondents from 30 facilities in 21 sub-Saharan Africa countries responded. The majority (92%) were clinical oncologists. Radiotherapy facilities were available in 70% of facilities. Seventy-eight percent of these had linear accelerators, and 42% had cobalt60 machines. Eighty percent of facilities had multidisciplinary tumor boards. Immunohistochemistry was routinely performed in 74% of facilities, computed tomography scan in 90%, bone scan in 16%, and positron emission tomography scans in 5%. Anthracyclines, taxanes, tamoxifen, letrozole, anastrozole, and zoledronic acid were available in the majority; trastuzumab, fertility, and genetic counseling were available in 66%, 58%, and 16%, respectively. There were a 50% increase in oncologist respondents over 2013 and a > 50% increase in radiotherapy facilities, particularly linear accelerators. Availability of trastuzumab, aromatase inhibitors, and taxanes increased. Immunohistochemistry capacity remained the same, whereas facilities harvesting at least 10 axillary lymph nodes increased. Bone scan facilities decreased. Responses suggested improved diagnostic services, systemic therapies, and radiotherapy. Sociocultural and economic barriers, system delays, and advanced stage at presentation remain. CONCLUSION Clinicians in sub-Saharan Africa have basic tools to improve breast cancer outcomes, recording positive strides in domains such as radiotherapy and systemic therapy. Socioeconomic and cultural barriers and system delays persist. Workforce expansion must be prioritized to improve quality of care to improve outcomes. This study highlights the current state of breast cancer management in Sub Saharan Africa, documenting key advancements , challenges and bottlenecks encountered in the sub region. Aside the major aspects of management, pertinent areas such as multidisciplinary tumour board engagements, fertility , genetic counselling and factors affecting outcome were explored. Majority of institutions manage breast cancer patients within a multidisciplinary setting using standard treatment guidelines. The high out of pocket cost of cancer treatment and advanced stage at presentation transcends in many sub Saharan countries negatively impacting outcomes. These results should serve as a benchmark to stakeholders , to guide urgent interventions required to further improve outcomes.
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Affiliation(s)
- Verna Vanderpuye
- National Centre for Radiotherapy, Oncology and Nuclear Medicine, Korle Bu Teaching Hospital, Accra, Ghana
| | - Mary-Ann Dadzie
- National Centre for Radiotherapy, Oncology and Nuclear Medicine, Korle Bu Teaching Hospital, Accra, Ghana
| | - Dezheng Huo
- Department of Public Health Sciences, University of Chicago, Chicago, IL
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14
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Radhakrishnan V. Adjuvant Trastuzumab: Do we finally know how long is not too long? Indian J Med Paediatr Oncol 2021. [DOI: 10.1055/s-0041-1735666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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15
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Gilboa S, Pras Y, Mataraso A, Bomze D, Markel G, Meirson T. Informative censoring of surrogate end-point data in phase 3 oncology trials. Eur J Cancer 2021; 153:190-202. [PMID: 34186504 DOI: 10.1016/j.ejca.2021.04.044] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 04/25/2021] [Accepted: 04/30/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Kaplan-Meier (K-M) analysis, the cornerstone of cancer clinical trial interpretation, assumes that censored patients are no more or less likely to experience an event than those followed. We sought to investigate the patterns of censoring in surrogate end-points of oncology randomised controlled trials (RCTs) and examine the relationship between censoring in practice-changing treatments that failed to demonstrate survival gain. METHODS In this cross-sectional study of phase III RCTs published in the New England Journal of Medicine, Lancet, and JAMA, between 2010 and 2020, K-M curves of surrogate end-points with statistical significance were extracted. The reverse K-M method (i.e., events and censoring are flipped) was used to examine differential censoring using the analogous reverse hazard ratio and restricted mean survival time. Sensitivity analysis was performed by partially restoring the balance in censoring between study arms. RESULTS Of the 73 eligible studies with significant surrogates, 33 (45%) reported significant overall survival benefit (concordant trials), and 40 (55%) did not (discordant trials). The proportion of studies with significant differential censoring in surrogates was 43% (17/40) and 51% (17/33) in discordant and concordant trials, respectively. Trials with a significant censoring imbalance in the experimental arm occurred only in discordant trials (15% vs 0%, odds ratio [OR] = 12.62, P = 0.033), compared to excessive censoring in the control arm which occurred more in concordant trials (28% vs 52%; OR = 0.36, P = 0.036). Although censoring imbalance occurred in both groups, after sensitivity analysis, 50% of the discordant trials lost their statistical significance, compared to 15% of concordant trials (OR = 5.6, P = 0.0018). CONCLUSION Censoring imbalance between study arms of RCTs suggests a potential systemic bias and raises uncertainty regarding the validity of the results. Informative censoring may explain the inconsistency between therapies that seem to improve disease outcomes without concomitant survival benefit and should trigger further investigation.
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Affiliation(s)
- Shai Gilboa
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yarden Pras
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | | | - David Bomze
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Gal Markel
- Department of Clinical Microbiology and Immunology, Sackler Faculty of Medicine, Tel Aviv University, Tel-Aviv, Israel; Davidoff Cancer Center, Rabin Medical Center-Beilinson Hospital, Petah Tikva, Israel.
| | - Tomer Meirson
- Shamir Medical Center (Assaf Harofeh), Rishon Lezion, Israel; Davidoff Cancer Center, Rabin Medical Center-Beilinson Hospital, Petah Tikva, Israel; Azrieli Faculty of Medicine, Bar-Ilan University, Israel.
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16
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Tarantino P, Morganti S, Curigliano G. Targeting HER2 in breast cancer: new drugs and paradigms on the horizon. EXPLORATION OF TARGETED ANTI-TUMOR THERAPY 2021; 2:139-155. [PMID: 36046143 PMCID: PMC9400740 DOI: 10.37349/etat.2021.00037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 02/09/2021] [Indexed: 12/23/2022] Open
Abstract
About 15-20% of all breast cancers (BCs) are defined human epidermal growth factor receptor 2 (HER2)-positive, based on the overexpression of HER2 protein and/or amplification of ERBB2 gene. Such alterations lead to a more aggressive behavior of the disease, but also predict response to treatments targeting HER2. Indeed, several anti-HER2 compounds have been developed and approved in the last two decades, significantly improving our ability to cure patients in the early setting, and greatly extending their survival in the advanced setting. However, recent evolutions in this field promise to improve outcomes even further, through advancements in established HER2-targeting strategies, as well as the exploration of novel strategies. In particular, the engineering of new antibody-drug conjugates, with higher drug-to-antibody ratios (DARs) and cleavable linkers, has already led to the development of a highly effective drug, namely trastuzumab deruxtecan, recently approved by the Food and Drug Administration (FDA) and European Medicines Agency (EMA) for the treatment of advanced HER2-positive (HER2+) BC, and currently in study in the early setting. Moreover, the novel tyrosine kinase inhibitor tucatinib was recently approved by FDA and EMA, showing to improve survival of HER2+ advanced BC patients, particularly in those with brain metastasis. Immunotherapy is also being investigated in the HER2+ subtype, through immune-checkpoint inhibition, cancer vaccines and adoptive-cell therapies. Overall, the enlarging arsenal of promising anti-HER2 compounds is expected to deliver significant improvements in the prognosis of both early and advanced HER2+ BC in the years to come. Moreover, some of such agents are showing encouraging activity in the much wider population of HER2-low advanced BC patients, challenging current BC classifications. If confirmed, this new paradigm would potentially expand the population deriving benefit from HER2-targeted treatments to up to 70% of all advanced BC patients, leading to a revolution in current treatment algorithms, and possibly to a redefinition of HER2 classification.
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Affiliation(s)
- Paolo Tarantino
- Division of New Drugs and Early Drug Development, European Institute of Oncology IRCCS, 20141 Milan, Italy
- Department of Oncology and Hematology, University of Milan, 20122 Milan, Italy
| | - Stefania Morganti
- Division of New Drugs and Early Drug Development, European Institute of Oncology IRCCS, 20141 Milan, Italy
- Department of Oncology and Hematology, University of Milan, 20122 Milan, Italy
| | - Giuseppe Curigliano
- Division of New Drugs and Early Drug Development, European Institute of Oncology IRCCS, 20141 Milan, Italy
- Department of Oncology and Hematology, University of Milan, 20122 Milan, Italy
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