Omission of adjuvant chemotherapy in elderly patients with early stage breast cancer.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. 12032-12032 ◽  
Author(s):  
Sung Jun Ma ◽  
Oluwadamilola Temilade Oladeru ◽  
Anurag K Singh
Keyword(s):  
Breast Cancer ◽  
Overall Survival ◽  
Adjuvant Chemotherapy ◽  
Elderly Patients ◽  
Elderly Population ◽  
Early Stage ◽  
Univariate Analysis ◽  
Early Stage Breast Cancer ◽  
Study Cohort ◽  
Entire Study

12032 Background: Breast cancer incidence in elderly population over 70 years is anticipated to grow up to 35% by 2030. However, this elderly population is under-represented in the TAILORx (Trial Assigning Individualized Options for Treatment) with less than 5% of the entire study cohort. As the omission of radiation therapy among the elderly with favorable prognosis is a reasonable alternative option, omission of chemotherapy has not been prospectively investigated. To address this knowledge gap, we conducted an observational cohort study to evaluate the omission of chemotherapy in elderly patients with early breast cancer. Methods: The National Cancer Database (NCDB) was queried for patients above the age of 70 diagnosed with hormone receptor (HR)-positive, human epidermal growth factor receptor 2 (HER2)-negative, pT1-2N0 breast cancer who underwent hormone therapy with or without chemotherapy (2010-2015). Kaplan-Meier method and Cox multivariable analysis (MVA) were performed for survival analysis. Propensity score matching in a 1:1 ratio without any replacement was used to address selection bias. Sensitivity analysis was performed on a subgroup of those with a high 21-gene recurrence score (RS) > 25. Results: A total of 12004 patients were identified, including 10802 and 1202 patients with and without adjuvant chemotherapy, respectively. The median follow up was 38.2 months (IQR 22.5-57.2). On univariate analysis, chemotherapy was not associated with improved overall survival (HR 0.96, p = 0.71), ineligible for inclusion in the final MVA model. On interaction analysis, the use of chemotherapy had no interaction with RS (p = 0.46), age (p = 0.08), tumor size (p = 0.23), tumor grade (p = 0.42), and comorbidity score (p = 0.22). On 1030 and 689 matched pairs for all RS and RS > 25, respectively, there was no association of overall survival with chemotherapy (all RS: HR 0.76, p = 0.08; RS > 25: HR 0.74, p = 0.10). Conclusions: For elderly patients with early stage breast cancer, the addition of adjuvant chemotherapy may not be associated with improved survival even in the setting of high RS > 25. Given the toxicity profile of systemic therapy, shared decision making between clinicians and elderly patients is needed to individualize treatment options.

scholarly journals Outcomes after Mastectomy and Lumpectomy in Octogenarians and Nonagenarians with Early-Stage Breast Cancer

2017 ◽  
Vol 83 (8) ◽  
pp. 887-894 ◽  
Author(s):  
Ameliay Merrill ◽  
Doris R. Brown ◽  
Heidi D. Klepin ◽  
Edward A. Levine ◽  
Marissa Howard-Mcnatt
Keyword(s):  
Breast Cancer ◽  
Overall Survival ◽  
Early Stage ◽  
Clinical Stage ◽  
Univariate Analysis ◽  
Local Treatment ◽  
Breast Conservation ◽  
Early Stage Breast Cancer ◽  
Risk Of Death ◽  
Increased Risk

Prospective studies have shown equal outcomes after mastectomy or breast conservation in patients with invasive breast cancer; however, many of these studies excluded elderly patients. We identified patients in their eighties and nineties with clinical stage 0 to II breast cancer undergoing mastectomy or lumpectomy with or without radiation from the prospective sentinel lymph node database at Wake Forest Baptist Health and analyzed their treatment and survival. Of 92 patients, 24 (26.1%) underwent mastectomy, 22 (23.9%) lumpectomy with radiation, and 46 (50.0%) lumpectomy alone. Significant differences were noted in tumor size (P = 0.018), nodal status (P = 0.013), and stage (P = 0.011) between the groups. Only 7.6 per cent of patients had chemotherapy, whereas 51.1 per cent took antiestrogen therapy. Recurrence occurred in 11 patients. In univariate analysis, overall survival did not differ by surgery. Age was the only factor that increased risk of death (HR = 1.19, P = 0.028). In this age group, neither tumor factors nor the type of local treatment significantly influenced overall survival. Octogenarians and nonagenarians with early-stage breast cancer undergoing breast-conserving surgery with or without radiation have equivalent survival to patients having a mastectomy.

scholarly journals Outcome of Patients With Early-Stage Breast Cancer Treated With Doxorubicin-Based Adjuvant Chemotherapy As a Function ofHER2andTOP2AStatus

2009 ◽  
Vol 27 (24) ◽  
pp. 3881-3886 ◽  
Author(s):  
Raymond Tubbs ◽  
William E. Barlow ◽  
G. Thomas Budd ◽  
Eric Swain ◽  
Peggy Porter ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Adjuvant Chemotherapy ◽  
Early Stage ◽  
Univariate Analysis ◽  
Menopausal Status ◽  
Disease Free Survival ◽  
Early Stage Breast Cancer ◽  
Breast Cancer Patients ◽  
Her2 Amplification ◽  
Amplification Ratio

PurposeAmplification and deletion of the TOP2A gene have been reported as positive predictive markers of response to anthracycline-based therapy. We determined the status of the HER2 and TOP2A genes in a large cohort of breast cancer patients treated with adjuvant doxorubicin (A) and cyclophosphamide (C).Patients and MethodsTOP2A/CEP17 and HER2/CEP17 fluorescent in situ hybridization (FISH) were performed on tissue microarrays (TMAs) constructed from 2,123 of the 3,125 women with moderate-risk primary breast cancer who received equivalent doses of either concurrent adjuvant chemotherapy with A plus C (n = 1,592) or sequential A followed by C (n = 1,533).ResultsAn abnormal TOP2A genotype was identified for 153 (9.4%) of 1,626 patients (4.0% amplified; 5.4% deleted). An abnormal HER2 genotype was identified for 303 (20.4%) of 1,483 patients (18.8% amplified; 1.6% deleted). No significant differences in either overall survival (OS) or disease-free survival (DFS) were identified for TOP2A. In univariate analysis, OS and DFS rates were strongly and adversely associated only with higher levels of HER2 amplification (ratio ≥ 4.0). Survival was not associated with low-level HER2 amplification (ratio ≥ 2; OS hazard ratio [HR], 1.14; P = .39; DFS HR, 1.07; P = .62), but it was associated for a ratio ≥ 4 (OS HR, 1.45; P = .03; DFS HR, 1.38; P = .033), in which analysis was adjusted for menopausal status, hormone receptor status, treatment, number of positive nodes, and tumor size.ConclusionIn this population of patients with early-stage breast cancer who were treated with adjuvant AC chemotherapy, TOP2A abnormalities were not associated with outcome. HER2 high-level amplification was a prognostic marker in anthracycline-treated patients.

scholarly journals The role of functional polymorphisms in oxidative stress-related genes on early-stage breast cancer survival

2021 ◽  
pp. 172460082110111
Author(s):  
Erika Korobeinikova ◽  
Rasa Ugenskiene ◽  
Ruta Insodaite ◽  
Viktoras Rudzianskas ◽  
Jurgita Gudaitiene ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Overall Survival ◽  
Single Nucleotide Polymorphisms ◽  
Early Stage ◽  
Disease Free Survival ◽  
Early Stage Breast Cancer ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
Free Survival ◽  
Disease Free

Background: Genetic variations in oxidative stress-related genes may alter the coded protein level and impact the pathogenesis of breast cancer. Methods: The current study investigated the associations of functional single nucleotide polymorphisms in the NFE2L2, HMOX1, P21, TXNRD2, and ATF3 genes with the early-stage breast cancer clinicopathological characteristics and disease-free survival, metastasis-free survival, and overall survival. A total of 202 Eastern European (Lithuanian) women with primary I–II stage breast cancer were involved. Genotyping of the single nucleotide polymorphisms was performed using TaqMan single nucleotide polymorphisms genotyping assays. Results: The CA+AA genotypes of P21 rs1801270 were significantly less frequent in patients with lymph node metastasis and larger tumor size ( P=0.041 and P=0.022, respectively). The TT genotype in ATF3 rs3125289 had significantly lower risk of estrogen receptor (ER), progesterone receptor (PR) negative, and human epidermal growth factor receptor 2 (HER2) positive status ( P=0.023, P=0.046, and P=0.040, respectively). In both, univariate and multivariate Cox analysis, TXNRD2 rs1139793 GG genotype vs. GA+AA was a negative prognostic factor for disease-free survival (multivariate hazard ratio (HR) 2.248; P=0.025) and overall survival (multivariate HR 2.248; P=0.029). The ATF3 rs11119982 CC genotype in the genotype model was a negative prognostic factor for disease-free survival (multivariate HR 5.878; P=0.006), metastasis-free survival (multivariate HR 4.759; P=0.018), and overall survival (multivariate HR 3.280; P=0.048). Conclusion: Our findings suggest that P21 rs1801270 is associated with lymph node metastasis and larger tumor size, and ATF3 rs3125289 is associated with ER, PR, and HER2 status. Two potential, novel, early-stage breast cancer survival biomarkers, TXNRD2 rs1139793 and ATF3 rs11119982, were detected. Further investigations are needed to confirm the results of the current study.

Abstract PS6-41: Mammaprint and blueprint as prognostic indicators for elderly patients with early stage breast cancer

2021 ◽  
Author(s):  
Peter W. Blumencranz ◽  
Mehran Habibi ◽  
Lisa Blumencranz ◽  
Andrea Menicucci ◽  
Shiyu Wang ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Elderly Patients ◽  
Early Stage ◽  
Early Stage Breast Cancer ◽  
Prognostic Indicators
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