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Vaidya JS, Vaidya UJ, Baum M, Bulsara MK, Joseph D, Tobias JS. Global adoption of single-shot targeted intraoperative radiotherapy (TARGIT-IORT) for breast cancer—better for patients, better for healthcare systems. Front Oncol 2022; 12:786515. [PMID: 36033486 PMCID: PMC9406153 DOI: 10.3389/fonc.2022.786515] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 06/28/2022] [Indexed: 12/30/2022] Open
Abstract
Micro abstractTargeted intraoperative radiotherapy (TARGIT-IORT) is delivered immediately after lumpectomy for breast cancer. We estimated its impact. At least 44,752 patients with breast cancer were treated with TARGIT-IORT in 260 centres in 35 countries, saving >20 million miles of travel and preventing ~2,000 non–breast cancer deaths. The TARGIT-IORT website (https://targit.org.uk/travel) provides maps and tools to find the nearest centre offering TARGIT-IORT and travel savings.BackgroundTargeted intraoperative radiotherapy (TARGIT-IORT) delivers radiotherapy targeted to the fresh tumour bed exposed immediately after lumpectomy for breast cancer. TARGIT-A trial found TARGIT-IORT to be as effective as whole-breast radiotherapy, with significantly fewer deaths from non–breast cancer causes. This paper documents its worldwide impact and provides interactive tools for clinicians and patients.MethodCentres using TARGIT-IORT provided the date of the first case and the total number of patients. We plotted these data on a customised Google Map. An interactive web-based tool provided directions to the closest centre. Using the data from the TARGIT-A trial, we estimated the total savings in travel miles, carbon footprint, and the number of non–breast cancer deaths that might be prevented.ResultsData from 242 (93%) of the 260 centres treating patients from 35 countries were available. From the first patient treated in 1998 to early 2020, at least 44,752 women with breast cancer have been treated with TARGIT-IORT. The TARGIT-IORT website (https://targit.org.uk/travel) displays the Google Map of centres with number of cases and an interactive tool for patients to find the nearest centre offering TARGIT-IORT and their travel savings. Scaling up to the already treated patients, >20 million miles of travel would have been saved and about 2,000 deaths prevented.ConclusionOne can ascertain the number of patients treated with a novel treatment. These data show how widely TARGIT-IORT has now been adopted and gives an indication of its beneficial worldwide impact on a large number of women with breast cancer.
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Affiliation(s)
- Jayant Sharad Vaidya
- Division of Surgery and Interventional Science, University College London, London, United Kingdom
- *Correspondence: Jayant Sharad Vaidya, ;
| | - Uma Jayant Vaidya
- Medical Sciences Division Brasenose College, University of Oxford, Oxford, United Kingdom
| | - Michael Baum
- Division of Surgery and Interventional Science, University College London, London, United Kingdom
| | - Max Kishor Bulsara
- Division of Surgery and Interventional Science, University College London, London, United Kingdom
- Department of Biostatistics, University of Notre Dame, Fremantle, WA, Australia
| | - David Joseph
- Department of Radiation Oncology, Sir Charles Gairdner Hospital, Perth, WA, Australia
| | - Jeffrey S. Tobias
- Department of Clinical Oncology, University College London Hospitals, London, United Kingdom
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Vaidya JS, Wenz F, Bulsara M, Tobias JS, Joseph DJ, Saunders C, Brew-Graves C, Potyka I, Morris S, Vaidya HJ, Williams NR, Baum M. An international randomised controlled trial to compare TARGeted Intraoperative radioTherapy (TARGIT) with conventional postoperative radiotherapy after breast-conserving surgery for women with early-stage breast cancer (the TARGIT-A trial). Health Technol Assess 2016; 20:1-188. [PMID: 27689969 DOI: 10.3310/hta20730] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Based on our laboratory work and clinical trials we hypothesised that radiotherapy after lumpectomy for breast cancer could be restricted to the tumour bed. In collaboration with the industry we developed a new radiotherapy device and a new surgical operation for delivering single-dose radiation to the tumour bed - the tissues at highest risk of local recurrence. We named it TARGeted Intraoperative radioTherapy (TARGIT). From 1998 we confirmed its feasibility and safety in pilot studies. OBJECTIVE To compare TARGIT within a risk-adapted approach with whole-breast external beam radiotherapy (EBRT) over several weeks. DESIGN The TARGeted Intraoperative radioTherapy Alone (TARGIT-A) trial was a pragmatic, prospective, international, multicentre, non-inferiority, non-blinded, randomised (1 : 1 ratio) clinical trial. Originally, randomisation occurred before initial lumpectomy (prepathology) and, if allocated TARGIT, the patient received it during the lumpectomy. Subsequently, the postpathology stratum was added in which randomisation occurred after initial lumpectomy, allowing potentially easier logistics and a more stringent case selection, but which needed a reoperation to reopen the wound to give TARGIT as a delayed procedure. The risk-adapted approach meant that, in the experimental arm, if pre-specified unsuspected adverse factors were found postoperatively after receiving TARGIT, EBRT was recommended. Pragmatically, this reflected how TARGIT would be practised in the real world. SETTING Thirty-three centres in 11 countries. PARTICIPANTS Women who were aged ≥ 45 years with unifocal invasive ductal carcinoma preferably ≤ 3.5 cm in size. INTERVENTIONS TARGIT within a risk-adapted approach and whole-breast EBRT. MAIN OUTCOME MEASURES The primary outcome measure was absolute difference in local recurrence, with a non-inferiority margin of 2.5%. Secondary outcome measures included toxicity and breast cancer-specific and non-breast-cancer mortality. RESULTS In total, 3451 patients were recruited between March 2000 and June 2012. The following values are 5-year Kaplan-Meier rates for TARGIT compared with EBRT. There was no statistically significant difference in local recurrence between TARGIT and EBRT. TARGIT was non-inferior to EBRT overall [TARGIT 3.3%, 95% confidence interval (CI) 2.1% to 5.1% vs. EBRT 1.3%, 95% CI 0.7% to 2.5%; p = 0.04; Pnon-inferiority = 0.00000012] and in the prepathology stratum (n = 2298) when TARGIT was given concurrently with lumpectomy (TARGIT 2.1%, 95% CI 1.1% to 4.2% vs. EBRT 1.1%, 95% CI 0.5% to 2.5%; p = 0.31; Pnon-inferiority = 0.0000000013). With delayed TARGIT postpathology (n = 1153), the between-group difference was larger than 2.5% and non-inferiority was not established for this stratum (TARGIT 5.4%, 95% CI 3.0% to 9.7% vs. EBRT 1.7%, 95% CI 0.6% to 4.9%; p = 0.069; Pnon-inferiority = 0.06640]. The local recurrence-free survival was 93.9% (95% CI 90.9% to 95.9%) when TARGIT was given with lumpectomy compared with 92.5% (95% CI 89.7% to 94.6%) for EBRT (p = 0.35). In a planned subgroup analysis, progesterone receptor (PgR) status was found to be the only predictor of outcome: hormone-responsive patients (PgR positive) had similar 5-year local recurrence with TARGIT during lumpectomy (1.4%, 95% CI 0.5% to 3.9%) as with EBRT (1.2%, 95% CI 0.5% to 2.9%; p = 0.77). Grade 3 or 4 radiotherapy toxicity was significantly reduced with TARGIT. Overall, breast cancer mortality was much the same between groups (TARGIT 2.6%, 95% CI 1.5% to 4.3% vs. EBRT 1.9%, 95% CI 1.1% to 3.2%; p = 0.56) but there were significantly fewer non-breast-cancer deaths with TARGIT (1.4%, 95% CI 0.8% to 2.5% vs. 3.5%, 95% CI 2.3% to 5.2%; p = 0.0086), attributable to fewer deaths from cardiovascular causes and other cancers, leading to a trend in reduced overall mortality in the TARGIT arm (3.9%, 95% CI 2.7% to 5.8% vs. 5.3%, 95% CI 3.9% to 7.3%; p = 0.099]. Health economic analyses suggest that TARGIT was statistically significantly less costly than EBRT, produced similar quality-adjusted life-years, had a positive incremental net monetary benefit that was borderline statistically significantly different from zero and had a probability of > 90% of being cost-effective. There appears to be little uncertainty in the point estimates, based on deterministic and probabilistic sensitivity analyses. If TARGIT were given instead of EBRT in suitable patients, it might potentially reduce costs to the health-care providers in the UK by £8-9.1 million each year. This does not include environmental, patient and societal costs. LIMITATIONS The number of local recurrences is small but the number of events for local recurrence-free survival is not as small (TARGIT 57 vs. EBRT 59); occurrence of so few events (< 3.5%) also implies that both treatments are effective and any difference is unlikely to be large. Not all 3451 patients were followed up for 5 years; however, more than the number of patients required to answer the main trial question (n = 585) were followed up for > 5 years. CONCLUSIONS For patients with breast cancer (women who are aged ≥ 45 years with hormone-sensitive invasive ductal carcinoma that is up to 3.5 cm in size), TARGIT concurrent with lumpectomy within a risk-adapted approach is as effective as, safer than and less expensive than postoperative EBRT. FUTURE WORK The analyses will be repeated with longer follow-up. Although this may not change the primary result, the larger number of events may confirm the effect on overall mortality and allow more detailed subgroup analyses. The TARGeted Intraoperative radioTherapy Boost (TARGIT-B) trial is testing whether or not a tumour bed boost given intraoperatively (TARGIT) boost is superior to a tumour bed boost given as part of postoperative EBRT. TRIAL REGISTRATION Current Controlled Trials ISRCTN34086741 and ClinicalTrials.gov NCT00983684. FUNDING University College London Hospitals (UCLH)/University College London (UCL) Comprehensive Biomedical Research Centre, UCLH Charities, Ninewells Cancer Campaign, National Health and Medical Research Council and German Federal Ministry of Education and Research (BMBF). From September 2009 this project was funded by the NIHR Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 20, No. 73. See the NIHR Journals Library website for further project information.
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Affiliation(s)
- Jayant S Vaidya
- Division of Surgery and Interventional Science, University College London, London, UK.,Department of Surgery, Whittington Hospital, Royal Free Hospital and University College London Hospital, London, UK
| | - Frederik Wenz
- Department of Radiation Oncology, University Medical Centre Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Max Bulsara
- Department of Biostatistics, University of Notre Dame, Fremantle, WA, Australia
| | - Jeffrey S Tobias
- Department of Clinical Oncology, University College London Hospitals, London, UK
| | - David J Joseph
- Department of Radiation Oncology, Sir Charles Gairdner Hospital, Perth, WA, Australia
| | - Christobel Saunders
- Department of Surgery, University of Western Australia, Perth, WA, Australia
| | - Chris Brew-Graves
- Division of Surgery and Interventional Science, University College London, London, UK
| | - Ingrid Potyka
- Division of Surgery and Interventional Science, University College London, London, UK
| | - Stephen Morris
- Health Economics Group, Department of Biomedical Engineering, University College London, London, UK
| | | | - Norman R Williams
- Division of Surgery and Interventional Science, University College London, London, UK
| | - Michael Baum
- Division of Surgery and Interventional Science, University College London, London, UK
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Picot J, Copley V, Colquitt JL, Kalita N, Hartwell D, Bryant J. The INTRABEAM® Photon Radiotherapy System for the adjuvant treatment of early breast cancer: a systematic review and economic evaluation. Health Technol Assess 2016; 19:1-190. [PMID: 26323045 DOI: 10.3310/hta19690] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Initial treatment for early breast cancer is usually either breast-conserving surgery (BCS) or mastectomy. After BCS, whole-breast external beam radiotherapy (WB-EBRT) is the standard of care. A potential alternative to post-operative WB-EBRT is intraoperative radiation therapy delivered by the INTRABEAM(®) Photon Radiotherapy System (Carl Zeiss, Oberkochen, Germany) to the tissue adjacent to the resection cavity at the time of surgery. OBJECTIVE To assess the clinical effectiveness and cost-effectiveness of INTRABEAM for the adjuvant treatment of early breast cancer during surgical removal of the tumour. DATA SOURCES Electronic bibliographic databases, including MEDLINE, EMBASE and The Cochrane Library, were searched from inception to March 2014 for English-language articles. Bibliographies of articles, systematic reviews, clinical guidelines and the manufacturer's submission were also searched. The advisory group was contacted to identify additional evidence. METHODS Systematic reviews of clinical effectiveness, health-related quality of life and cost-effectiveness were conducted. Two reviewers independently screened titles and abstracts for eligibility. Inclusion criteria were applied to full texts of retrieved papers by one reviewer and checked by a second reviewer. Data extraction and quality assessment were undertaken by one reviewer and checked by a second reviewer, and differences in opinion were resolved through discussion at each stage. Clinical effectiveness studies were included if they were carried out in patients with early operable breast cancer. The intervention was the INTRABEAM system, which was compared with WB-EBRT, and study designs were randomised controlled trials (RCTs). Controlled clinical trials could be considered if data from available RCTs were incomplete (e.g. absence of data on outcomes of interest). A cost-utility decision-analytic model was developed to estimate the costs, benefits and cost-effectiveness of INTRABEAM compared with WB-EBRT for early operable breast cancer. RESULTS One non-inferiority RCT, TARGeted Intraoperative radioTherapy Alone (TARGIT-A), met the inclusion criteria for the review. The review found that local recurrence was slightly higher following INTRABEAM than WB-EBRT, but the difference did not exceed the 2.5% non-inferiority margin providing INTRABEAM was given at the same time as BCS. Overall survival was similar with both treatments. Statistically significant differences in complications were found for the occurrence of wound seroma requiring more than three aspirations (more frequent in the INTRABEAM group) and for a Radiation Therapy Oncology Group toxicity score of grade 3 or 4 (less frequent in the INTRABEAM group). Cost-effectiveness base-case analysis indicates that INTRABEAM is less expensive but also less effective than WB-EBRT because it is associated with lower total costs but fewer total quality-adjusted life-years gained. However, sensitivity analyses identified four model parameters that can cause a switch in the treatment option that is considered cost-effective. LIMITATIONS The base-case result from the model is subject to uncertainty because the disease progression parameters are largely drawn from the single available RCT. The RCT median follow-up of 2 years 5 months may be inadequate, particularly as the number of participants with local recurrence is low. The model is particularly sensitive to this parameter. CONCLUSIONS AND IMPLICATIONS A significant investment in INTRABEAM equipment and staff training (clinical and non-clinical) would be required to make this technology available across the NHS. Longer-term follow-up data from the TARGIT-A trial and analysis of registry data are required as results are currently based on a small number of events and economic modelling results are uncertain. STUDY REGISTRATION This study is registered as PROSPERO CRD42013006720. FUNDING The National Institute for Health Research Health Technology Assessment programme. Note that the economic model associated with this document is protected by intellectual property rights, which are owned by the University of Southampton. Anyone wishing to modify, adapt, translate, reverse engineer, decompile, dismantle or create derivative work based on the economic model must first seek the agreement of the property owners.
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Affiliation(s)
- Jo Picot
- Southampton Health Technology Assessments Centre (SHTAC), University of Southampton, Southampton, UK
| | - Vicky Copley
- Southampton Health Technology Assessments Centre (SHTAC), University of Southampton, Southampton, UK
| | - Jill L Colquitt
- Southampton Health Technology Assessments Centre (SHTAC), University of Southampton, Southampton, UK
| | - Neelam Kalita
- Southampton Health Technology Assessments Centre (SHTAC), University of Southampton, Southampton, UK
| | - Debbie Hartwell
- Southampton Health Technology Assessments Centre (SHTAC), University of Southampton, Southampton, UK
| | - Jackie Bryant
- Southampton Health Technology Assessments Centre (SHTAC), University of Southampton, Southampton, UK
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Vaidya JS, Bulsara M, Wenz F, Joseph D, Saunders C, Massarut S, Flyger H, Eiermann W, Alvarado M, Esserman L, Falzon M, Brew-Graves C, Potyka I, Tobias JS, Baum M. Pride, Prejudice, or Science: Attitudes Towards the Results of the TARGIT-A Trial of Targeted Intraoperative Radiation Therapy for Breast Cancer. Int J Radiat Oncol Biol Phys 2015; 92:491-7. [PMID: 26068479 PMCID: PMC4464618 DOI: 10.1016/j.ijrobp.2015.03.022] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Revised: 03/04/2015] [Accepted: 03/19/2015] [Indexed: 11/04/2022]
Affiliation(s)
- Jayant S Vaidya
- Clinical Trials Group, Division of Surgery and Interventional Science, University College London, London, UK; Department of Surgery, Royal Free Hospital, London, UK; Department of Surgery, Whittington Health, London, UK.
| | - Max Bulsara
- Department of Biostatistics, University of Notre Dame, Fremantle, WA, Australia
| | - Frederik Wenz
- Department of Radiation Oncology, University Medical Centre Mannheim, University of Heidelberg, Heidelberg, Germany
| | - David Joseph
- Department of Radiation Oncology, Sir Charles Gairdner Hospital, Perth, WA, Australia
| | - Christobel Saunders
- Department of Surgery, Sir Charles Gairdner Hospital, Perth, WA, Australia; School of Surgery, University of Western Australia, Perth, WA, Australia
| | - Samuele Massarut
- Department of Surgery, Centro di Riferimento Oncologia, Aviano, Italy
| | - Henrik Flyger
- Department of Breast Surgery, University of Copenhagen, Copenhagen, Denmark
| | - Wolfgang Eiermann
- Department of Gynecology and Obstetrics, Red Cross Hospital, Munich, Germany
| | - Michael Alvarado
- Department of Surgery, University of California, San Francisco, California
| | - Laura Esserman
- Department of Surgery, University of California, San Francisco, California
| | - Mary Falzon
- Department of Pathology, University College London Hospitals, London, UK
| | - Chris Brew-Graves
- Clinical Trials Group, Division of Surgery and Interventional Science, University College London, London, UK
| | - Ingrid Potyka
- Clinical Trials Group, Division of Surgery and Interventional Science, University College London, London, UK
| | - Jeffrey S Tobias
- Department of Clinical Oncology, University College London Hospitals, London, UK
| | - Michael Baum
- Clinical Trials Group, Division of Surgery and Interventional Science, University College London, London, UK
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Vaidya JS, Wenz F, Bulsara M, Tobias JS, Joseph DJ, Keshtgar M, Flyger HL, Massarut S, Alvarado M, Saunders C, Eiermann W, Metaxas M, Sperk E, Sütterlin M, Brown D, Esserman L, Roncadin M, Thompson A, Dewar JA, Holtveg HMR, Pigorsch S, Falzon M, Harris E, Matthews A, Brew-Graves C, Potyka I, Corica T, Williams NR, Baum M. Risk-adapted targeted intraoperative radiotherapy versus whole-breast radiotherapy for breast cancer: 5-year results for local control and overall survival from the TARGIT-A randomised trial. Lancet 2014; 383:603-13. [PMID: 24224997 DOI: 10.1016/s0140-6736(13)61950-9] [Citation(s) in RCA: 581] [Impact Index Per Article: 58.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND The TARGIT-A trial compared risk-adapted radiotherapy using single-dose targeted intraoperative radiotherapy (TARGIT) versus fractionated external beam radiotherapy (EBRT) for breast cancer. We report 5-year results for local recurrence and the first analysis of overall survival. METHODS TARGIT-A was a randomised, non-inferiority trial. Women aged 45 years and older with invasive ductal carcinoma were enrolled and randomly assigned in a 1:1 ratio to receive TARGIT or whole-breast EBRT, with blocks stratified by centre and by timing of delivery of targeted intraoperative radiotherapy: randomisation occurred either before lumpectomy (prepathology stratum, TARGIT concurrent with lumpectomy) or after lumpectomy (postpathology stratum, TARGIT given subsequently by reopening the wound). Patients in the TARGIT group received supplemental EBRT (excluding a boost) if unforeseen adverse features were detected on final pathology, thus radiotherapy was risk-adapted. The primary outcome was absolute difference in local recurrence in the conserved breast, with a prespecified non-inferiority margin of 2·5% at 5 years; prespecified analyses included outcomes as per timing of randomisation in relation to lumpectomy. Secondary outcomes included complications and mortality. This study is registered with ClinicalTrials.gov, number NCT00983684. FINDINGS Patients were enrolled at 33 centres in 11 countries, between March 24, 2000, and June 25, 2012. 1721 patients were randomised to TARGIT and 1730 to EBRT. Supplemental EBRT after TARGIT was necessary in 15·2% [239 of 1571] of patients who received TARGIT (21·6% prepathology, 3·6% postpathology). 3451 patients had a median follow-up of 2 years and 5 months (IQR 12-52 months), 2020 of 4 years, and 1222 of 5 years. The 5-year risk for local recurrence in the conserved breast was 3·3% (95% CI 2·1-5·1) for TARGIT versus 1·3% (0·7-2·5) for EBRT (p=0·042). TARGIT concurrently with lumpectomy (prepathology, n=2298) had much the same results as EBRT: 2·1% (1·1-4·2) versus 1·1% (0·5-2·5; p=0·31). With delayed TARGIT (postpathology, n=1153) the between-group difference was larger than 2·5% (TARGIT 5·4% [3·0-9·7] vs EBRT 1·7% [0·6-4·9]; p=0·069). Overall, breast cancer mortality was much the same between groups (2·6% [1·5-4·3] for TARGIT vs 1·9% [1·1-3·2] for EBRT; p=0·56) but there were significantly fewer non-breast-cancer deaths with TARGIT (1·4% [0·8-2·5] vs 3·5% [2·3-5·2]; p=0·0086), attributable to fewer deaths from cardiovascular causes and other cancers. Overall mortality was 3·9% (2·7-5·8) for TARGIT versus 5·3% (3·9-7·3) for EBRT (p=0·099). Wound-related complications were much the same between groups but grade 3 or 4 skin complications were significantly reduced with TARGIT (four of 1720 vs 13 of 1731, p=0·029). INTERPRETATION TARGIT concurrent with lumpectomy within a risk-adapted approach should be considered as an option for eligible patients with breast cancer carefully selected as per the TARGIT-A trial protocol, as an alternative to postoperative EBRT. FUNDING University College London Hospitals (UCLH)/UCL Comprehensive Biomedical Research Centre, UCLH Charities, National Institute for Health Research Health Technology Assessment programme, Ninewells Cancer Campaign, National Health and Medical Research Council, and German Federal Ministry of Education and Research.
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MESH Headings
- Aged
- Breast Neoplasms/mortality
- Breast Neoplasms/radiotherapy
- Breast Neoplasms/surgery
- Carcinoma, Ductal, Breast/mortality
- Carcinoma, Ductal, Breast/radiotherapy
- Carcinoma, Ductal, Breast/surgery
- Female
- Humans
- Intraoperative Care/methods
- Intraoperative Care/mortality
- Kaplan-Meier Estimate
- Mastectomy, Segmental/methods
- Mastectomy, Segmental/mortality
- Middle Aged
- Neoplasm Recurrence, Local/mortality
- Neoplasm Recurrence, Local/prevention & control
- Radiotherapy/methods
- Radiotherapy/mortality
- Treatment Outcome
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Affiliation(s)
- Jayant S Vaidya
- Clinical Trials Group, Division of Surgery and Interventional Science, University College London, London, UK; Department of Surgery, Royal Free Hospital, London, UK; Department of Surgery, Whittington Hopsital, London, UK.
| | - Frederik Wenz
- Department of Radiation Oncology, University Medical Centre Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Max Bulsara
- Department of Biostatistics, University of Notre Dame, Fremantle, WA, Australia
| | - Jeffrey S Tobias
- Department of Clinical Oncology, University College London Hospitals, London, UK
| | - David J Joseph
- Department of Radiation Oncology, Sir Charles Gairdner Hospital, Perth, WA, Australia
| | - Mohammed Keshtgar
- Department of Surgery, Royal Free Hospital, London, UK; Department of Surgery, Whittington Hopsital, London, UK
| | - Henrik L Flyger
- Department of Breast Surgery, University of Copenhagen, Copenhagen, Denmark
| | - Samuele Massarut
- Department of Surgery, Centro di Riferimento Oncologia, Aviano, Italy
| | - Michael Alvarado
- Department of Surgery, University of California, San Francisco, CA, USA
| | - Christobel Saunders
- Department of Surgery, Sir Charles Gairdner Hospital, Perth, WA, Australia; School of Surgery, University of Western Australia, Perth, WA, Australia
| | - Wolfgang Eiermann
- Department of Gynecology and Obstetrics, Red Cross Hospital, Munich, Germany
| | - Marinos Metaxas
- Clinical Trials Group, Division of Surgery and Interventional Science, University College London, London, UK
| | - Elena Sperk
- Department of Radiation Oncology, University Medical Centre Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Marc Sütterlin
- Department of Gynecology and Obstetrics, University Medical Centre Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Douglas Brown
- Department of Surgery, Ninewells Hospital, Dundee, UK
| | - Laura Esserman
- Department of Surgery, University of California, San Francisco, CA, USA
| | - Mario Roncadin
- Department of Radiation Oncology, Centro di Riferimento Oncologia, Aviano, Italy
| | | | - John A Dewar
- Department of Radiation Oncology, Ninewells Hospital, Dundee, UK
| | - Helle M R Holtveg
- Department of Breast Surgery, University of Copenhagen, Copenhagen, Denmark
| | - Steffi Pigorsch
- Department of Radiation Oncology, Technical University of Munich, Munich, Germany
| | - Mary Falzon
- Department of Pathology, University College London Hospitals, London, UK
| | - Eleanor Harris
- Department of Radiation Oncology, East Carolina University Brody School of Medicine, Greenville, NC, USA
| | - April Matthews
- Psychosocial Oncology Clinical Studies Group, National Cancer Research Institute, London, UK; Independent Cancer Patients' Voice, London, UK
| | - Chris Brew-Graves
- Clinical Trials Group, Division of Surgery and Interventional Science, University College London, London, UK
| | - Ingrid Potyka
- Clinical Trials Group, Division of Surgery and Interventional Science, University College London, London, UK
| | - Tammy Corica
- Department of Radiation Oncology, Sir Charles Gairdner Hospital, Perth, WA, Australia
| | - Norman R Williams
- Clinical Trials Group, Division of Surgery and Interventional Science, University College London, London, UK
| | - Michael Baum
- Clinical Trials Group, Division of Surgery and Interventional Science, University College London, London, UK
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Corica T, Joseph D, Saunders C, Bulsara M, Nowak AK. Intraoperative radiotherapy for early breast cancer: do health professionals choose convenience or risk? Radiat Oncol 2014; 9:33. [PMID: 24461031 PMCID: PMC3907143 DOI: 10.1186/1748-717x-9-33] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 01/20/2014] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND The randomized TARGIT trial comparing experimental intra-operative radiotherapy (IORT) to up to 7 weeks of daily conventional external beam radiotherapy (EBRT) recruited participants in Western Australia between 2003 and 2012. We aimed to understand preferences for this evolving radiotherapy treatment for early breast cancer (EBC) in health professionals, and how they changed over time and in response to emerging data. Preferences for single dose IORT or EBRT for EBC were elicited in 2004 and 2011, together with factors that may be associated with these preferences. METHODS Western Australian health professionals working with breast cancer patients were invited to complete a validated, self-administered questionnaire. The questionnaire used hypothetical scenarios and trade-off methodology to determine the maximum increase in risk of local recurrence health professionals were willing to accept in order to have a single dose of IORT in the place of EBRT if they were faced with this decision themselves. RESULTS Health professional characteristics were similar across the two time points although 2011 included a higher number of nurse (49% vs. 36%) and allied health (10% vs. 4%) participants and a lower number of radiation therapists (17% vs. 32% ) compared to 2004.Health professional preferences varied, with 7.5% and 3% judging IORT unacceptable at any risk, 18% and 21% judging IORT acceptable only if offering an equivalent risk, 56% and 59% judging IORT acceptable with a low maximum increase in risk (1-3%) and 19% and 17% judging a high maximum increase in risk acceptable (4-5%), in 2004 and 2011 respectively. A significantly greater number of nurses accepted IORT as a treatment option in 2011. CONCLUSIONS Most Western Australian health professionals working with breast cancer patients are willing to accept an increase in risk of local recurrence in order to replace EBRT with IORT in a hypothetical setting. This finding was consistent over two time points spanning 7 years despite the duration of clinical experience with IORT and the publication of the early clinical results of IORT in 2010. These results need to be compared with preferences elicited from patient groups, and further investigation into the impact of personal preferences on health professionals' advice to patients is warranted.
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Affiliation(s)
- Tammy Corica
- University of Western Australia PhD Candidate, School of Medicine and Pharmacology, Comprehensive Cancer Centre, Sir Charles Gairdner Hospital, Nedlands, WA 6009, Australia
- Radiation Oncology Clinical Trials and Research Unit, Comprehensive Cancer Centre, Sir Charles Gairdner Hospital, Nedlands, WA 6009, Australia
| | - David Joseph
- School of Surgery, University of Western Australia, Comprehensive Cancer Centre, Sir Charles Gairdner Hospital, Nedlands, WA 6009, Australia
- Radiation Oncology, Comprehensive Cancer Centre, Sir Charles Gairdner Hospital, Nedlands, WA 6009, Australia
| | - Christobel Saunders
- School of Surgery, University of Western Australia, MBDP M507, Crawley, WA 6009, Australia
| | - Max Bulsara
- Institute of Health and Research, University of Notre Dame, 19 Mouat Street, P.O Box 1225, Fremantle, WA 6959, Australia
| | - Anna K Nowak
- School of Medicine and Pharmacology, University of Western Australia, MBDP M503, Crawley, WA 6009, Australia
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Alvarado MD, Conolly J, Park C, Sakata T, Mohan AJ, Harrison BL, Hayes M, Esserman LJ, Ozanne EM. Patient preferences regarding intraoperative versus external beam radiotherapy following breast-conserving surgery. Breast Cancer Res Treat 2013; 143:135-40. [PMID: 24292868 DOI: 10.1007/s10549-013-2782-9] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Accepted: 11/18/2013] [Indexed: 01/09/2023]
Abstract
The TARGIT-A Trial is an international randomized, prospective trial comparing intraoperative radiotherapy (IORT) for equivalence to external beam radiotherapy (EBRT) following lumpectomy for invasive breast cancer in selected low-risk patients; early results suggest that outcomes are similar. In addition to effectiveness data and cost considerations, the preferences of patients should help inform practice. This study was undertaken to explore and quantify preference in choosing between IORT and the current standard, EBRT. Eligible subjects were current or past candidates for breast-conserving surgery and radiation being seen at the University of California, San Francisco Breast Care Center. A trade-off technique varying the risk of local recurrence for IORT was used to quantify any additional accepted risk that these patients would accept to receive either treatment. Patients were first presented with a slideshow comparing EBRT with the experimental IORT option before being asked their preferences given hypothetical 10-year local recurrence risks. Patients were then given a questionnaire on demographic, social and clinical factors. Data from 81 patients were analyzed. The median additional accepted risk to have IORT was 2.3 % (-9 to 39 %), mean 3.2 %. Only 7 patients chose to accept additional risk for EBRT; 22 accepted IORT at no additional risk; and the remaining 52 chose IORT with some additional risk. Patients weigh trade-offs of risks and benefits when presented with medical treatment choices. Our results show that the majority of breast cancer patients will accept a small increment of local risk for a simpler delivery of radiation. Further studies that incorporate outcome and side effect data from the TARGIT-A trial clarify the expected consequences of a local recurrence, and include an expanded range of radiation options that could help guide clinical decision making in this area.
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Affiliation(s)
- Michael D Alvarado
- Department of Surgery, UCSF Comprehensive Cancer Center, University of California, Box 1710, 1600 Divisadero, San Francisco, CA, 94143-1710, USA,
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