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Heidinger M, Loesch JM, Levy J, Maggi N, Eller RS, Schwab FD, Kurzeder C, Weber WP. Association of relative resection volume with patient-reported outcomes applying different levels of oncoplastic breast conserving surgery - A retrospective cohort study. EUROPEAN JOURNAL OF SURGICAL ONCOLOGY 2024; 50:108478. [PMID: 38885597 DOI: 10.1016/j.ejso.2024.108478] [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] [Received: 02/14/2024] [Revised: 05/12/2024] [Accepted: 06/10/2024] [Indexed: 06/20/2024]
Abstract
INTRODUCTION The American Society of Breast Surgeons (ASBrS) recently classified oncoplastic breast conserving surgery (OBCS) into two levels. The association of resection ratio during OBCS with patient-reported outcomes (PRO) is unclear. MATERIALS AND METHODS Patients with stage 0-III breast cancer undergoing OBCS between 01/2011-04/2023 at a Swiss university hospital, who completed at least one postoperative BREAST-Q PRO questionnaire were identified from a prospectively maintained institutional database. Outcomes included differences in PROs between patients after ASBrS level I (<20 % of breast tissue removed) versus level II surgery (20-50 %). RESULTS Of 202 eligible patients, 129 (63.9 %) underwent level I OBCS, and 73 (36.1 %) level II. Six patients (3.0 %) who underwent completion mastectomy were excluded. The median time to final PROs was 25.4 months. Patients undergoing ASBrS level II surgery were more frequently affected by delayed wound healing (p < 0.001). ASBrS level was not found to independently predict any BreastQ domain. However, delayed wound healing was shown to reduce short-term physical well-being (estimated difference -26.27, 95 % confidence interval [CI] -39.33 to -13.22, p < 0.001). Higher age was associated with improved PROs. CONCLUSION ASBrS level II surgery allows the removal of larger tumors without impairing PROs. Preventive measures for delayed wound healing and close postoperative follow-up to promptly treat wound healing disorders may avoid short-term reductions in physical well-being.
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Affiliation(s)
- Martin Heidinger
- Breast Center, University Hospital Basel, Spitalstrasse 21, 4031, Basel, Switzerland; University of Basel, Petersplatz 1, 4001, Basel, Switzerland
| | - Julie M Loesch
- Breast Center, University Hospital Basel, Spitalstrasse 21, 4031, Basel, Switzerland
| | - Jeremy Levy
- Breast Center, University Hospital Basel, Spitalstrasse 21, 4031, Basel, Switzerland
| | - Nadia Maggi
- Breast Center, University Hospital Basel, Spitalstrasse 21, 4031, Basel, Switzerland; University of Basel, Petersplatz 1, 4001, Basel, Switzerland
| | - Ruth S Eller
- Breast Center, University Hospital Basel, Spitalstrasse 21, 4031, Basel, Switzerland; University of Basel, Petersplatz 1, 4001, Basel, Switzerland
| | - Fabienne D Schwab
- Breast Center, University Hospital Basel, Spitalstrasse 21, 4031, Basel, Switzerland; University of Basel, Petersplatz 1, 4001, Basel, Switzerland
| | - Christian Kurzeder
- Breast Center, University Hospital Basel, Spitalstrasse 21, 4031, Basel, Switzerland; University of Basel, Petersplatz 1, 4001, Basel, Switzerland
| | - Walter P Weber
- Breast Center, University Hospital Basel, Spitalstrasse 21, 4031, Basel, Switzerland; University of Basel, Petersplatz 1, 4001, Basel, Switzerland.
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Singareeka Raghavendra A, Liu D, Shen Y, Barcenas CH, Ueno NT, Giordano S, Tripathy D, Sri Karuturi M. Outcomes of older adults with early-stage triple-negative breast cancer (TNBC) receiving chemotherapy: a single-institution experience. Breast Cancer Res Treat 2024; 207:81-90. [PMID: 38916821 DOI: 10.1007/s10549-024-07309-7] [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] [Received: 02/10/2024] [Accepted: 03/17/2024] [Indexed: 06/26/2024]
Abstract
BACKGROUND Despite lower chemotherapy use in older triple-negative breast cancer (TNBC) patients, their outcomes match younger counterparts. We compared outcomes in early-stage TNBC patients by age receiving chemotherapy at a major cancer center with a national TNBC database. METHODS Retrospective study using institutional data on stage I-III TNBC (ER/PR < 10%) women with neoadjuvant/adjuvant chemotherapy. Based on their ages at diagnosis, patients were stratified into four categories: ≤40, 41-59, 60-69, and ≥ 70 years. Demographic and clinical characteristics recorded included race, disease stage, ER/PR positivity, treatment regimen, lymphatic or vascular invasion (LVI), histologic grade, Ki-67 level, body mass index (BMI), and pathologic complete response (pCR) following neoadjuvant treatment and are summarized using descriptive statistics. The primary endpoints were overall survival (OS), disease-free survival (DFS), and distant disease-free survival (DDFS); all were estimated using the Kaplan-Meier method. Both univariate and multivariate (MV) Cox regressions were applied to evaluate the impact of important covariates on these time-to-event endpoints. RESULTS Of the 2336 patients studied, 492 (21.1%) were ≤ 40 years old, 1239 (53.1%) were 41-59, 461 (19.7%) were 60-69, and 144 (6.2%) were ≥ 70. In the univariate regression model of OS/DFS/DDFS, age ≥ 70 was significantly associated with worse OS (p = 0.0217); other factors associated with worse OS were non-anthracycline-based chemotherapy, higher tumor stage, and neoadjuvant chemotherapy. The multivariate Cox regression model, adjusted for race and stage, showed no significant effects of age on OS; however, patients ≥ 70 years old who received non-anthracycline treatment combinations had worse DFS (hazard ratio = 0.349 vs. 1.049, p = 0.0293) and DDFS (hazard ratio = 0.317 vs. 1.016, p = 0.0251) than patients ≤ 40 years old. DFS from MV model after adjusting for age, race, and disease stage, the hazard ratio between anthracycline + taxane treatments and anthracycline + other treatments in patients ≥ 70 years old was statistically significantly lower than in patients ≤ 40 years old (hazard ratios [HRs] = 0.349 vs. 1.049, p = 0.0293). CONCLUSIONS Our findings indicate that outcomes such as DFS are less favorable in older compared to younger patients with early-stage TNBC, primarily in those who did not receive an anthracycline based chemotherapy regimen.
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Affiliation(s)
- Akshara Singareeka Raghavendra
- Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Unit 1354, Houston, TX, 77030, USA
| | - Diane Liu
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Yu Shen
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Carlos H Barcenas
- Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Unit 1354, Houston, TX, 77030, USA
| | - Naoto T Ueno
- University of Hawai'i Cancer Center, Honolulu, HI, USA
| | - Sharon Giordano
- Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Unit 1354, Houston, TX, 77030, USA
- Department of Health Services Research, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Debu Tripathy
- Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Unit 1354, Houston, TX, 77030, USA
| | - Meghan Sri Karuturi
- Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Unit 1354, Houston, TX, 77030, USA.
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Heidinger M, Maggi N, Dutilh G, Mueller M, Eller RS, Loesch JM, Schwab FD, Kurzeder C, Weber WP. Use of sentinel lymph node biopsy in elderly patients with breast cancer - 10-year experience from a Swiss university hospital. World J Surg Oncol 2023; 21:176. [PMID: 37287038 DOI: 10.1186/s12957-023-03062-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 06/04/2023] [Indexed: 06/09/2023] Open
Abstract
BACKGROUND The Choosing Wisely initiative recommended the omission of routine sentinel lymph node biopsy (SLNB) in patients ≥ 70 years of age, with clinically node-negative, early stage, hormone receptor (HR) positive and human epidermal growth factor receptor 2 (Her2) negative breast cancer in August 2016. Here, we assess the adherence to this recommendation in a Swiss university hospital. METHODS We conducted a retrospective single center cohort study from a prospectively maintained database. Patients ≥ 18 years of age with node-negative breast cancer were treated between 05/2011 and 03/2022. The primary outcome was the percentage of patients in the Choosing Wisely target group who underwent SLNB before and after the initiative went live. Statistical significance was tested using chi-squared test for categorical and Wilcoxon rank-sum tests for continuous variables. RESULTS In total, 586 patients met the inclusion criteria with a median follow-up of 2.7 years. Of these, 163 were ≥ 70 years of age and 79 were eligible for treatment according to the Choosing Wisely recommendations. There was a trend toward a higher rate of SLNB (92.7% vs. 75.0%, p = 0.07) after the Choosing Wisely recommendations were published. In patients ≥ 70 years with invasive disease, fewer received adjuvant radiotherapy after omission of SLNB (6.2% vs. 64.0%, p < 0.001), without differences concerning adjuvant systemic therapy. Both short-term and long-term complication rates after SLNB were low, without differences between elderly patients and those < 70 years. CONCLUSIONS Choosing Wisely recommendations did not result in a decreased use of SLNB in the elderly at a Swiss university hospital.
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Affiliation(s)
- Martin Heidinger
- Breast Center, University Hospital Basel, Basel, Switzerland.
- University of Basel, Basel, Switzerland.
- Universitätsspital Basel, Spitalstrasse 21, 4031, Basel, Switzerland.
| | - Nadia Maggi
- Breast Center, University Hospital Basel, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Gilles Dutilh
- Department of Clinical Research, University Hospital Basel, Basel, Switzerland
| | | | - Ruth S Eller
- Breast Center, University Hospital Basel, Basel, Switzerland
| | - Julie M Loesch
- Breast Center, University Hospital Basel, Basel, Switzerland
| | - Fabienne D Schwab
- Breast Center, University Hospital Basel, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Christian Kurzeder
- Breast Center, University Hospital Basel, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Walter P Weber
- Breast Center, University Hospital Basel, Basel, Switzerland
- University of Basel, Basel, Switzerland
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Neoadjuvant Pertuzumab Plus Trastuzumab in Combination with Docetaxel and Carboplatin in Patients with HER2-Positive Breast Cancer: Real-World Data from the National Institute of Oncology in Poland. Cancers (Basel) 2022; 14:cancers14051218. [PMID: 35267525 PMCID: PMC8909338 DOI: 10.3390/cancers14051218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 02/14/2022] [Accepted: 02/24/2022] [Indexed: 12/10/2022] Open
Abstract
Neoadjuvant systemic therapy has now become the standard in early breast cancer management. Chemotherapy in combination with trastuzumab +/− pertuzumab targeted therapy can improve the rates of pathologic complete response (pCR) in patients with HER2-positive breast cancer. Achieving a pCR is considered a good prognostic factor, in particular, in patients with more aggressive breast cancer subtypes such as TNBC or HER2-positive cancers. Furthermore, most studies demonstrate that chemotherapy in combination with trastuzumab and pertuzumab is well tolerated. The retrospective analysis presented here concentrates on neoadjuvant therapy with the TCbH-P regimen, with a particular emphasis on patients over 60 years of age. We analysed the factors affecting the achievement of pCR and present the adverse effects of the applied therapies, opening discussion about optimizing the therapy of older patients with HER-2 positive breast cancer.
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Safety Assessment of Neoadjuvant Pertuzumab Combined with Trastuzumab in Nonmetastatic HER2-Positive Breast Cancer in Postmenopausal Elderly Women of South Asia. Int J Breast Cancer 2018; 2018:6106041. [PMID: 29850259 PMCID: PMC5933036 DOI: 10.1155/2018/6106041] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 03/06/2018] [Indexed: 01/03/2023] Open
Abstract
Aim To evaluate the safety issues and adverse effects of using TCHP regimen (docetaxel, carboplatin, trastuzumab, and pertuzumab) versus TCP regimen (docetaxel, carboplatin, and trastuzumab) in older postmenopausal women with nonmetastatic HER2-positive breast cancer. HER2 overexpressed in 20–25% of breast cancer signals an aggressive form of breast cancer and is treated with trastuzumab and pertuzumab. Methods The patient record database was accessed to identify all postmenopausal women in the Punjab Care hospital who were above 65 years old, with stages 1–3 HER2-positive breast cancer and treated with neoadjuvant TCHP and neoadjuvant TCP from 2013 till 2016. Results In TCH-P group and TCH group, mild fatigue (34% versus 36%) and diarrhea (48% versus 49%) were most common toxicities. Fever in TCH-P group and TCH group (12% versus 13%) was common. Anorexia affected 21% and 16% of patients receiving TCH and TCHP regimen, respectively. Febrile neutropenia was higher in TCH-P group 13% (3/23) versus 4.5% (1/22) in TCH group. Also 27.2% (6/22) of TCH-P group was hospitalized for treatment related toxicities versus 21.7% (5/23) of TCH group. Conclusion Comparing neoadjuvant TCP and neoadjuvant TCH-P showed TCH-P regimen had an acceptable toxicity profile. Severe cardiac dysfunction was not observed. Using TCH-P regimen can be considered as relatively safe therapeutic option for elderly postmenopausal women with nonmetastatic HER2-positive breast cancer.
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Shumway DA, Griffith KA, Sabel MS, Jones RD, Forstner JM, Bott-Kothari TL, Hawley ST, Jeruss J, Jagsi R. Surgeon and Radiation Oncologist Views on Omission of Adjuvant Radiotherapy for Older Women with Early-Stage Breast Cancer. Ann Surg Oncol 2017; 24:3518-3526. [DOI: 10.1245/s10434-017-6013-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Indexed: 12/16/2022]
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7
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Evaluating the association between adjuvant chemotherapy and function-related adverse events among older patients with early stage breast cancer. J Geriatr Oncol 2017; 8:242-248. [DOI: 10.1016/j.jgo.2017.05.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Revised: 03/04/2017] [Accepted: 05/24/2017] [Indexed: 11/19/2022]
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8
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Dellapasqua S. Systemic Treatment for Specific Medical Situations. Breast Cancer 2017. [DOI: 10.1007/978-3-319-48848-6_49] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Jolly TA, Williams GR, Bushan S, Pergolotti M, Nyrop KA, Jones EL, Muss HB. Adjuvant treatment for older women with invasive breast cancer. ACTA ACUST UNITED AC 2016; 12:129-45; quiz 145-6. [PMID: 26767315 DOI: 10.2217/whe.15.92] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Older women experience a large share of breast cancer incidence and death. With the projected rise in the number of older cancer patients, adjuvant chemo-, radiation and endocrine therapy management will become a key component of breast cancer treatment in older women. Many factors influence adjuvant treatment decisions including patient preferences, life expectancy and tumor biology. Geriatric assessment predicts important outcomes, identifies key deficits, and can aid in the decision making process. This review utilizes clinical vignettes to illustrate core principles in adjuvant management of breast cancer in older women and suggests an approach incorporating life expectancy and geriatric assessment.
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Affiliation(s)
- Trevor A Jolly
- Hematology & Oncology Division, University of North Carolina, Chapel Hill, NC 27599, USA.,Division of Geriatric Medicine & Center for Aging & Health, University of North Carolina, Chapel Hill, NC 27599, USA.,Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC 27514, USA
| | - Grant R Williams
- Hematology & Oncology Division, University of North Carolina, Chapel Hill, NC 27599, USA.,Division of Geriatric Medicine & Center for Aging & Health, University of North Carolina, Chapel Hill, NC 27599, USA.,Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC 27514, USA
| | - Sita Bushan
- Department of Medicine/School of Medicine, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Mackenzi Pergolotti
- Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Kirsten A Nyrop
- Hematology & Oncology Division, University of North Carolina, Chapel Hill, NC 27599, USA.,Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC 27514, USA
| | - Ellen L Jones
- Department of Radiation Oncology, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Hyman B Muss
- Hematology & Oncology Division, University of North Carolina, Chapel Hill, NC 27599, USA.,Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC 27514, USA
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Abstract
Breast cancer is the mostly commonly diagnosed cancer in women both in the United States and worldwide. Although advanced age at diagnosis is associated with more favorable tumor biology, mortality rates are comparatively higher in older adults, possibly attributed to advanced stage at presentation. There are minimal specific treatment-based guidelines in elderly patients with cancer, mostly attributable to their limited inclusion on clinical trials. In addition to the existing evidence from clinical trials and retrospective studies, practitioners need to take into consideration functional status, social support, patient preference, presence of comorbidities, and life expectancy when selecting optimal treatment.
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11
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Riseberg D. Treating Elderly Patients With Hormone Receptor-Positive Advanced Breast Cancer. CLINICAL MEDICINE INSIGHTS-ONCOLOGY 2015; 9:65-73. [PMID: 26339192 PMCID: PMC4550185 DOI: 10.4137/cmo.s26067] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 06/18/2015] [Accepted: 06/20/2015] [Indexed: 02/06/2023]
Abstract
As the overall population ages, the proportion of elderly patients (aged ≥65 years) with breast cancer also increases. Studies have shown that elderly patients with hormone receptor–positive breast cancer can derive as much benefit from treatment as do younger patients, yet they remain underrepresented in clinical trials and are often undertreated in clinical practice. Treatment decisions for older patients should not be based solely on chronologic age; a patient’s physiologic functioning and comorbidities must also be taken into consideration. For recurrent or metastatic disease, systemic treatment with endocrine therapies or chemotherapy may prolong a patient’s life and alleviate troublesome symptoms. Resistance to therapy remains a problem in the advanced breast cancer setting, with most patients eventually becoming resistant to additional treatment. New combination regimens that target multiple pathways, such as everolimus plus exemestane, have shown efficacy in elderly patients previously resistant to endocrine therapies, and future research may need to focus on such combinations in order to improve outcomes in this patient group. A number of investigational agents are in clinical development, although few studies identify their effects in the elderly patient population. Optimizing effective yet tolerable therapeutic regimens for elderly patients could improve their outcomes while ensuring that the goals of improved survival and quality of life are considered.
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Affiliation(s)
- David Riseberg
- Institute for Cancer Care, Mercy Medical Center, Baltimore, MD, USA
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12
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Ebner F, Hancke K, Blettner M, Schwentner L, Wöckel A, Kreienberg R, Janni W, van Ewijk R. Aggressive Intrinsic Subtypes in Breast Cancer: A Predictor of Guideline Adherence in Older Patients With Breast Cancer? Clin Breast Cancer 2015; 15:e189-95. [PMID: 25913904 DOI: 10.1016/j.clbc.2015.03.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Accepted: 03/18/2015] [Indexed: 01/07/2023]
Abstract
BACKGROUND Treatment side effects, comorbidities, and guideline-adherent treatment (GL+) influence the oncologic outcome of older breast cancer patients (oBCP) (age ≥ 70 years). The focus of this analysis was to investigate the associations among tumor characteristics, guideline adherence, and outcome and to compare these associations between younger breast cancer patients (yBCP) (age 50-69 years) and oBCP. METHODS This is a retrospective multicenter cohort study with 17 participating certified breast cancer centers. The analysis of 10,897 patient records collected from 1992 to 2008 for GL+ and clinical outcome was performed. Tumor and patient characteristics and their associations with GL+ were compared between oBCP and yBCP. RESULTS Nonguideline-adherent treatment (GL-) was associated with higher tumor stages and comorbidities. This effect was stronger in the oBCP group (P < .001). GL+ was significantly more common in yBCP than in oBCP (P < .001). The oBCP had significantly higher tumor stages, including tumor size (P < .001), nodal status (P < .001), and positive hormone receptors (P = .001). Tumor grading was lower (P = .001), and HER2neu overexpression was less frequent (P = .003) in oBCP. Overall survival and disease-free survival are significantly impaired if GL- occurred in patients with breast cancer independently of age. CONCLUSIONS GL- is associated with decreased disease-free survival and overall survival in both age groups. GL+ decreases advanced tumor characteristics in all age groups but significantly more in oBCP. If patients received GL+, we were unable to detect a statistical significant difference in the survival parameters.
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Affiliation(s)
- Florian Ebner
- Universität Ulm, Klinik für Frauenheilkunde und Geburtshilfe, Ulm, Germany.
| | - Katharina Hancke
- Universität Ulm, Klinik für Frauenheilkunde und Geburtshilfe, Ulm, Germany
| | - Maria Blettner
- Universitätsmedizin derJohannes Gutenberg-Universität Mainz, Institut für Medizinische Biometrie, Epidemiologie und Informatik, Mainz, Germany
| | - Lukas Schwentner
- Universität Ulm, Klinik für Frauenheilkunde und Geburtshilfe, Ulm, Germany
| | - Achim Wöckel
- Universität Würzburg, Frauenklinik und Poliklinik, Würzburg, Germany
| | - Rolf Kreienberg
- Universität Ulm, Klinik für Frauenheilkunde und Geburtshilfe, Ulm, Germany
| | - Wolfgang Janni
- Universität Ulm, Klinik für Frauenheilkunde und Geburtshilfe, Ulm, Germany
| | - Reyn van Ewijk
- Universitätsmedizin derJohannes Gutenberg-Universität Mainz, Institut für Medizinische Biometrie, Epidemiologie und Informatik, Mainz, Germany; Faculty of Economics, University of Mainz, Mainz, Germany
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Mariano C, Francl M, Pope J, Wong L, Lim HJ, Lohrisch C. Comparison of toxicity experienced by older versus younger patients enrolled in breast cancer clinical trials. Clin Breast Cancer 2014; 15:73-9. [PMID: 25445420 DOI: 10.1016/j.clbc.2014.09.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 09/06/2014] [Accepted: 09/17/2014] [Indexed: 11/25/2022]
Abstract
BACKGROUND Elderly patients form a large proportion of patients with breast cancer but are underrepresented in clinical trials. We examined whether elderly patients experience more toxicity than younger patients within breast cancer clinical trials. MATERIALS AND METHODS All breast cancer trials open from 1999 to 2012 at BCCA, Vancouver Center, were reviewed. The primary endpoint was meaningful toxicity (MTOX), defined as any grade 3 or 4 adverse event (AE), any AE leading to dose delay or reduction, or premature discontinuation of therapy. RESULTS In the 46 trials enrolling 799 patients, the therapy given was chemotherapy to 18% of the patients, hormonal therapy to 40%, skeletal therapy to 14%, and targeted therapy and a combination of chemotherapy and targeted therapy to 14%. Elderly patients were more likely to enroll in hormonal and skeletal therapy trials, and younger patients were evenly distributed among the therapy types. Toxicity data were available for 778 patients (97%). Elderly patients and younger patients experienced a similar number and frequency of MTOX. The therapy type was the strongest predictor of toxicity on multivariate analysis. In non-chemotherapy-containing trials, elderly and younger patients had a similar frequency and number of toxicities. Few elderly patients were enrolled in cytotoxic chemotherapy trials, but they experienced no more toxicity than did the younger patients. CONCLUSION The appropriate selection of elderly patients using eligibility criteria, self selection, and/or clinician assessment will allow safe participation of elderly patients in breast cancer trials.
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Affiliation(s)
- Caroline Mariano
- Department of Medical Oncology, British Columbia Cancer Agency, Vancouver, British Columbia, Canada.
| | - Mia Francl
- Department of Medical Oncology, British Columbia Cancer Agency, Vancouver, British Columbia, Canada
| | - Janice Pope
- Clinical Trials Unit, British Columbia Cancer Agency, Vancouver, British Columbia, Canada
| | - Linda Wong
- Clinical Trials Unit, British Columbia Cancer Agency, Vancouver, British Columbia, Canada
| | - Howard J Lim
- Department of Medical Oncology, British Columbia Cancer Agency, Vancouver, British Columbia, Canada
| | - Caroline Lohrisch
- Department of Medical Oncology, British Columbia Cancer Agency, Vancouver, British Columbia, Canada
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14
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Muss HB. Adjuvant Chemotherapy in Older Women With Breast Cancer: Who and What? J Clin Oncol 2014; 32:1996-2000. [DOI: 10.1200/jco.2013.54.8586] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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