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Chen YA, Lai HW, Su HC, Loh EW, Huang TW, Tam KW. Efficacy and safety of adjuvant therapies in older patients with breast cancer: a systematic review and meta-analysis of real-world data. Breast Cancer 2024; 31:739-753. [PMID: 39085679 DOI: 10.1007/s12282-024-01622-1] [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: 03/27/2024] [Accepted: 07/29/2024] [Indexed: 08/02/2024]
Abstract
BACKGROUND Insufficient data available for older patients with breast cancer complicates decision-making regarding optimal treatment. A systematic review that uses real-world data is required for assessing the effectiveness and potential adverse effects of various therapies for this age group of patients. METHODS Databases of PubMed, Embase, and Cochrane Library were searched. We included clinical studies that evaluated various treatments for geriatric breast cancer, including adjuvant radiation therapy, hypofractionated radiation therapy (hypo-RT) and accelerated and partial breast irradiation (APBI), endocrine therapy, chemotherapy, and targeted therapy. RESULTS A total of 71 studies were retrieved. Adjuvant radiation therapy significantly improved overall survival (OS) compared with no radiation [hazard ratio (HR) = 0.60, 95% confidence interval (CI) 0.54-0.67]. The pooled estimates of OS for hypo-RT and APBI demonstrated no inferiority compared with conventional radiation. Both endocrine treatment (HR = 0.63, 95% CI 0.43-0.92) and chemotherapy (HR = 0.76, 95% CI 0.65-0.88) significantly increased OS compared with no treatment. Trastuzumab monotherapy significantly enhanced OS compared with no trastuzumab use (HR = 0.23, 95% CI 0.07-0.73). CONCLUSION Despite concerns about potential complications during treatment in older patients, proactive therapies significantly increase their survival rates. For patients who are frailer, hypo-RT and APBI offer survival rates comparable to traditional modalities. Additionally, targeted therapy as a monotherapy holds promise as a viable option for patients with HER2-positive breast cancer who cannot undergo chemotherapy. Therefore, by conducting thorough general assessments and clinical evaluations, the side effects of postoperative treatments can be effectively managed.
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Affiliation(s)
- Yu-An Chen
- School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hsuan-Wen Lai
- School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hui-Chen Su
- Department of Pharmacy, Chi Mei Medical Center, Tainan City, Taiwan
| | - El-Wui Loh
- Cochrane Taiwan, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Medical Imaging, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Tsai-Wei Huang
- Cochrane Taiwan, Taipei Medical University, Taipei, Taiwan
- School of Nursing, College of Nursing, Taipei Medical University, Taipei, Taiwan
| | - Ka-Wai Tam
- Cochrane Taiwan, Taipei Medical University, Taipei, Taiwan.
- Division of General Surgery, Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
- Division of General Surgery, Department of Surgery, Shuang Ho Hospital, Taipei Medical University, 291, Zhongzheng Road, Zhonghe District, New Taipei City, 23561, Taiwan.
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Bartlett JM, Xu K, Wong J, Pond G, Zhang Y, Spears M, Salunga R, Mallon E, Taylor KJ, Hasenburg A, Markopoulos C, Dirix L, van de Velde CJ, Rea D, Schnabel CA, Treuner K, Bayani J. Validation of the Prognostic Performance of Breast Cancer Index in Hormone Receptor-Positive Postmenopausal Breast Cancer Patients in the TEAM Trial. Clin Cancer Res 2024; 30:1509-1517. [PMID: 38345755 PMCID: PMC11016895 DOI: 10.1158/1078-0432.ccr-23-2436] [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: 08/24/2023] [Revised: 11/01/2023] [Accepted: 02/08/2024] [Indexed: 04/16/2024]
Abstract
PURPOSE Patients with early-stage hormone receptor-positive (HR+) breast cancer face a prolonged risk of recurrence even after adjuvant endocrine therapy. The Breast Cancer Index (BCI) is significantly prognostic for overall (0-10 years) and late (5-10 years) distant recurrence (DR) risk in N0 and N1 patients. Here, BCI prognostic performance was evaluated in HR+ postmenopausal women from the Tamoxifen and Exemestane Adjuvant Multinational (TEAM) trial. EXPERIMENTAL DESIGN 3,544 patients were included in the analysis (N = 1,519 N0, N = 2,025 N+). BCI risk groups were calculated using pre-specified cutoff points. Kaplan-Meier analyses and log-rank tests were used to assess the prognostic significance of BCI risk groups based on DR. Hazard ratios (HR) and confidence intervals (CI) were calculated using Cox models with and without clinical covariates. RESULTS For overall 10-year DR, BCI was significantly prognostic in Ni0 (N = 1,196) and N1 (N = 1,234) patients who did not receive prior chemotherapy (P < 0.001). In patients who were DR-free for 5 years, 10-year late DR rates for low- and high-risk groups were 5.4% and 9.3% (N0 cohort, N = 1,285) and 4.8% and 12.2% (N1 cohort, N = 1,625) with multivariate HRs of 2.25 (95% CI, 1.30-3.88; P = 0.004) and 2.67 (95% CI, 1.53-4.63; P < 0.001), respectively. Late DR performance was substantially improved using previously optimized cutoff points, identifying BCI low-risk groups with even lower 10-year late DR rates of 3.8% and 2.7% in N0 and N1 patients, respectively. CONCLUSIONS The TEAM trial represents the largest prognostic validation study for BCI to date and provides a more representative assessment of late DR risk to guide individualized treatment decision-making for HR+ patients with early-stage breast cancer.
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Affiliation(s)
- John M.S. Bartlett
- Cancer Research UK Scotland Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - Keying Xu
- Diagnostic Development, Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Jenna Wong
- Biotheranostics, A Hologic Company, San Diego, California
| | - Gregory Pond
- Department of Biostatistics, McMaster University, Hamilton, Ontario
| | - Yi Zhang
- Biotheranostics, A Hologic Company, San Diego, California
| | - Melanie Spears
- Diagnostic Development, Ontario Institute for Cancer Research, Toronto, Ontario, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario
| | | | | | - Karen J. Taylor
- Cancer Research UK Scotland Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - Annette Hasenburg
- Department of Gynecology and Obstetrics, University Center Mainz, Mainz, Germany
| | | | - Luc Dirix
- St. Augustinus Hospital, Antwerp, Belgium
| | | | - Daniel Rea
- Cancer Research UK Clinical Trials Unit, University of Birmingham, Birmingham, United Kingdom
| | | | - Kai Treuner
- Biotheranostics, A Hologic Company, San Diego, California
| | - Jane Bayani
- Diagnostic Development, Ontario Institute for Cancer Research, Toronto, Ontario, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario
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Abdel-Razeq H, Abu Rous F, Abuhijla F, Abdel-Razeq N, Edaily S. Breast Cancer in Geriatric Patients: Current Landscape and Future Prospects. Clin Interv Aging 2022; 17:1445-1460. [PMID: 36199974 PMCID: PMC9527811 DOI: 10.2147/cia.s365497] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 09/14/2022] [Indexed: 11/23/2022] Open
Abstract
Breast cancer is the most common cancer diagnosed among women worldwide and more than half are diagnosed above the age of 60 years. Life expectancy is increasing and the number of breast cancer cases diagnosed among older women are expected to increase. Undertreatment, mostly due to unjustifiable fears of advanced-age and associated comorbidities, is commonly practiced in this group of patients who are under-represented in clinical trials and their management is not properly addressed in clinical practice guidelines. With modern surgery and anesthesia, breast surgeries are considered safe and is usually associated with very low complication rates, regardless of extent of surgery. However, oncoplastic surgery and management of the axilla can be tailored based on patients'- and disease-related factors. Most of chemotherapeutic agents, along with targeted therapy and anti-Human epidermal growth factor receptor-2 (HER2) drugs can be safely given for older patients, however, dose adjustment and close monitoring of potential adverse events might be needed. The recently introduced cyclin-D kinase (CDK) 4/6-inhibitors in combination with aromatase inhibitors (AI) or fulvestrant, which changed the landscape of breast cancer therapy, are both safe and effective in older patients and had substituted more aggressive and potentially toxic interventions. Despite its proven efficacy, adjusting or even omitting adjuvant radiation therapy, at least in low-risk older patients, is safe and frequently practiced. In this paper, we review existing data related to breast cancer management among older patients across the continuum; from resection of the primary tumor through adjuvant chemotherapy, radiation and endocrine therapy up to the management of recurrent and advanced-stage disease.
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Affiliation(s)
- Hikmat Abdel-Razeq
- Department of Internal Medicine, King Hussein Cancer Center, Amman, Jordan
- School of Medicine, The University of Jordan, Amman, Jordan
| | | | - Fawzi Abuhijla
- Department of Radiation Oncology, King Hussein Cancer Center, Amman, Jordan
| | | | - Sarah Edaily
- Department of Internal Medicine, King Hussein Cancer Center, Amman, Jordan
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