scholarly journals Quantification of Ki67 Change as a Valid Prognostic Indicator of Luminal B Type Breast Cancer After Neoadjuvant Therapy

2021 ◽  
Vol 27 ◽  
Author(s):  
Shirong Tan ◽  
Xin Fu ◽  
Shouping Xu ◽  
Pengfei Qiu ◽  
Zhidong Lv ◽  
...  

Introduction: Ki67 value and its variation before and after neoadjuvant chemotherapy are commonly tested in relation to breast cancer patient prognosis. This study aims to quantify the extent of changes in Ki67 proliferation pre- and post-neoadjuvant chemotherapy, confirm an optimal cut-off point, and evaluate its potential value for predicting survival outcomes in patients with different molecular subtypes of breast cancer.Methods: This retrospective real-world study recruited 828 patients at the Department of Breast Surgery of the First Affiliated Hospital of China Medical University and the Cancer Hospital of China Medical University from Jan 2014 to Nov 2020. Patient demographic features and disease pathology characteristics were recorded, and biomarkers were verified through immunohistochemistry. Various statistical methods were used to validate the relationships between different characteristics and survival outcomes irrespective of disease-free and overall survival.Results: Among 828 patients, statistically significant effects between pathological complete response and survival outcome were found in both HER2-enriched and triple-negative breast cancer (p < 0.05) but not in Luminal breast cancer (p > 0.05). Evident decrease of Ki67 was confirmed after neoadjuvant chemotherapy. To quantify the extent of Ki67 changes between pre- and post-NAC timepoints, we adopted a computational equation termed ΔKi67% for research. We found the optimal cut-off value to be “ΔKi67% = −63%” via the operating characteristic curve, defining ΔKi67% ≤ −63% as positive status and ΔKi67% > −63% as negative status. Patients with positive ΔKi67% status were 37.1% of the entire cohort. Additionally, 4.7, 39.9, 34.5 and 39.6% of patients with Luminal A, Luminal B, HER2-enriched and triple negative breast cancer were also validated with positive ΔKi67% status. The statistically significant differences between ΔKi67% status and prognostic outcomes were confirmed by univariate and multivariate analysis in Luminal B (univariate and multivariate analysis: p < 0.05) and triple negative breast cancer (univariate and multivariate analysis: p < 0.05). We proved ΔKi67% as a statistically significant independent prognostic factor irrespective of disease-free or overall survival among patients with Luminal B and triple-negative breast cancer.Conclusions:ΔKi67% can aid in predicting patient prognostic outcome, provide a measurement of NAC efficacy, and assist in further clinical decisions, especially for patients with Luminal B breast cancer.

2013 ◽  
Vol 31 (26_suppl) ◽  
pp. 70-70
Author(s):  
Abu Bakar Hafeez Bhatti ◽  
Amina Iqbal Khan ◽  
Neelam Siddiqui ◽  
Narjis Muzaffar ◽  
Mazhar Ali Shah

70 Background: Triple-negative breast cancer represents a subgroup of breast cancer associated with aggressive behavior and high risk of local and regional failure. Aggressive surgical intervention is considered optimal for this cancer which has made role of Breast conservative therapy (BCT) debatable in these patients. The objective of this study was to compare outcome of BCT for triple negative versus non-triple–negative breast cancers. Methods: Data of patients who underwent breast conservative therapy between 1997-2009 at Shaukat Khanum Cancer Hospital and had complete receptor status information were extracted. Patients were divided into triple-negative breast cancer (TNBC) and non-TNBC. Patient characteristics, medical treatment modalities and adverse events between two groups were compared. Five year locoregional recurrence free, disease free and overall survival was calculated. Univariate and multivariate analysis was done to identify independent predictors of outcome. Results: A total of 194 patients with TNBC and 443 with non-TNBC were compared. Significant differences was present for age at presentation (p<0.0001), family history (p=0.005), grade (p<0.0001) and use of hormonal therapy (p<0.0001). The actual number of locoregional failures, distant failures, and mortalities were not significantly different. No significant difference was present in 5-year locoregional recurrence free (96% vs. 92%, p=0.3), disease free (75% vs. 74%, p=0.7) and overall survival (78% vs. 83%, p=0.2). Tumor size, nodal involvement and hormonal treatment were independent predictors of survival on multivariate analysis. Conclusions: Breast-conservative therapy has comparable outcomes for triple-negative and non-triple–negative breast cancers.


2015 ◽  
Vol 33 (28_suppl) ◽  
pp. 158-158 ◽  
Author(s):  
Mona Kamal Jomaa ◽  
Ahmed Aly Nagy

158 Background: Triple-negative breast cancer (TNBC) is a unique subtype and consider as an aggressive disease without established targeted treatment options. This study conducted to determine the incidence, characteristics, and survival outcomes of TNBC patients in an Egyptian cancer institute. Methods: Medical records of 520 patients treated between 2010-2011 in Clinical Oncology Department-Ain Shams University-Egypt were analyzed. Cox proportional hazards models were used to evaluate the association between TNBC and DFS and OS after adjusting for other covariates. Results: Among the 520 patients, 139 were TNBC .The median age was 50 years (SD±11.767, Range 20-80 ) versus 52 years (SD±12.134, Range 20-80), median tumor diameter was 5 cm (SD± 1.408, Range 1-7) versus was 5 cm (SD± 1.401, Range 1-7) , and median number of positive axillary LN was 3 (SD± 4.779, Range 0-37) versus 3 (SD± 4.832, Range 0-25) in non TNBC and TNBC respectively . Median disease-free survival was 24 months (SD± 14.128, Range 1-69 ) versus 15 months (SD± 8.811, Range 1-43 ) and median overall survival was 41 months (SD± 16.249, Range 3-60) versus 31 months (SD± 12.184, Range 7-60 ) in non TNBC and TNBC respectively. About 85.6 % of the TNBC tumors were IDC, 4.4 % were ILC and 5% were mixed. About 1.4 % of the TNBC tumors were grade I, 70.5 % were grade II and 28.1% were grade III. Median disease-free survival was 24 months (95%CI 21.679- 26.321) versus 15 months (95%CI 12.587-17.413) (p< 0.001) and median overall survival was 44 months (95%CI 41.396-46.604) versus 31 months (95%CI 29.460-32.540) (p< 0.001) in non TNBC and TNBC respectively. In TNBC cohort , DFS was 12 months (95%CI 11.464-12.536) in patients with grade III tumors versus 25 months (95%CI 22.359-27.641 )in patients with other grades (p< 0.001), this was also reflected in OS as 29 months (95%CI 25.129-32.871 ) versus 44 months (95%CI 41.238-46.762 ) (p< 0.001). Conclusions: Multivariate analyses supported a conclusion that TNBC subtype was an independent adverse prognostic factor for survival along with other known risk factors such as tumor grade.


2021 ◽  
Author(s):  
Jie-Yu Zhou ◽  
Kang-Kang Lu ◽  
Wei-Da Fu ◽  
Hao Shi ◽  
Jun-Wei Gu ◽  
...  

Background: Triple-negative breast cancer (TNBC) is an aggressive disease. Nomograms can predict prognosis of patients with TNBC. Methods: A total of 745 eligible TNBC patients were recruited and randomly divided into training and validation groups. Endpoints were disease-free survival and overall survival. Concordance index, area under the curve and calibration curves were used to analyze the predictive accuracy and discriminative ability of nomograms. Results: Based on the training cohort, neutrophil-to-lymphocyte ratio, positive lymph nodes, tumor size and tumor-infiltrating lymphocytes were used to construct a nomogram for disease-free survival. In addition, age was added to the overall survival nomogram. Conclusion: The current study developed and validated well-calibrated nomograms for predicting disease-free survival and overall survival in patients with TNBC.


2021 ◽  
pp. 767-781
Author(s):  
Manikandan Dhanushkodi ◽  
Velusamy Sridevi ◽  
Viswanathan Shanta ◽  
Ranganathan Rama ◽  
Rajaraman Swaminathan ◽  
...  

PURPOSE There are sparse data on the outcome of patients with locally advanced breast cancer (LABC). This report is on the prognostic factors and long-term outcome from Cancer Institute, Chennai. METHODS This is an analysis of untreated patients with LABC (stages IIIA-C) who were treated from January 2006 to December 2013. RESULTS Of the 4,577 patients with breast cancer who were treated, 2,137 patients (47%) with LABC were included for analysis. The median follow-up was 75 months (range, 1-170 months), and 2.3% (n = 49) were lost to follow-up at 5 years. The initial treatment was neoadjuvant concurrent chemoradiation (NACR) (77%), neoadjuvant chemotherapy (15%), or others (8%). Patients with triple-negative breast cancer had a pathologic complete response (PCR) of 41%. The 10-year overall survival was for stage IIIA (65.1%), stage IIIB (41.2%), and stage IIIC (26.7%). Recurrence of cancer was observed in 27% of patients (local 13% and distant 87%). Multivariate analysis showed that patients with a tumor size > 10 cm (hazard ratio [HR], 2.19; 95% CI, 1.62 to 2.98; P = .001), hormone receptor negativity (HR, 1.45; 95% CI, 1.22 to 1.72; P = .001), treatment modality (neoadjuvant chemotherapy, HR, 0.56; 95% CI, 0.43 to 0.73; P = .001), lack of PCR (HR, 2.36; 95% CI, 1.85 to 3.02; P = .001), and the presence of lymphovascular invasion (HR, 1.97; 95% CI, 1.60 to 2.44; P = .001) had decreased overall survival. CONCLUSION NACR was feasible in inoperable LABC and gave satisfactory long-term survival. PCR was significantly higher in patients with triple-negative breast cancer. The tumor size > 10 cm was significantly associated with inferior survival. However, this report acknowledges the limitations inherent in experience of management of LABC from a single center.


Chemotherapy ◽  
2020 ◽  
Vol 65 (3-4) ◽  
pp. 101-109
Author(s):  
Meizhen Zhu ◽  
Yang Yu ◽  
Xiying Shao ◽  
Liang Zhu ◽  
Linbo Wang

<b><i>Background:</i></b> In triple negative breast cancer (TNBC) patients receiving neoadjuvant chemotherapy (NACT), pre-treatment predictors for pathological complete response (pCR) have been reported; however, those for progressive disease (PD) remain unidentified. <b><i>Methods:</i></b> We investigated pre-treatment clinicopathological predictors associated with pCR and PD by retrospectively reviewing data for 165 patients treated between 2015 and 2018. Patients with pCR and PD were compared to those without pCR and PD, respectively, using logistic regression and Kaplan-Meier methods. <b><i>Results:</i></b> Lack of androgen receptor (AR) was an independent predictor of pCR, while high histological grade, low Ki-67 index, and incomplete NACT courses were independent predictors of PD. Mean disease-free survival and overall survival were significantly poorer in PD patients than in pCR patients (15.7, 21.3 vs. 52.4, 56.3 months). <b><i>Conclusions:</i></b> Insights into the chemo-resistance mechanisms and exploration of novel targeted agents in subgroups as per AR and Ki-67 status are needed to improve survival outcomes in TNBC patients.


2021 ◽  
Author(s):  
Mary Roselin Nittala ◽  
Satyaseelan Packianathan ◽  
Gary L. Shultz ◽  
Paul Roberts ◽  
Eswar K. Mundra ◽  
...  

Abstract Background Triple negative breast cancer (TNBC) (estrogen receptor (ER) – negative, progesterone receptor (PR) - negative, and human epidermal growth factor receptor 2 (HER2) -negative) is an aggressive subtype of breast cancer that is more common in younger women, carries a poorer prognosis and has a greater metastatic potential than receptor positive subtypes. Radiation therapy’s ability to improve outcomes, especially the overall survival is controversial, more so among African American patients. The objective of this study is to evaluate local control and survival rates of TNBC patients treated with radiotherapy (RT) in our institution with a sizeable cohort of African American women. Methods This is a retrospective analysis of 67 TNBCs (2007–2017) at an academic state institution who underwent a lumpectomy and /or mastectomy (surgery) followed by adjuvant irradiation to a median total dose of 50 Gy (range 40.5–50.40 Gy). Chemotherapy was administered in a neoadjuvant (32) or adjuvant setting (35). For all 67 TNBCs, local control (LC), overall survival (OS), and disease-free survival (DFS) were estimated using the Kaplan-Meier method. The significance of survival variables was analyzed using the Cox univariate and multivariate proportional hazards model. A p-value of less than 0.05 was considered statistically significant. The SPSS 24.0 software was used for data analysis. Results The baseline characteristics of all 67 TNBCs were measured with median follow up of 58 months (range 10–142 months). Patients were stratified into two groups (neoadjuvant chemotherapy-RT (32) vs. adjuvant chemotherapy-RT (35)). The five-year rates for LC, DFS and OS were 14.8 % vs. 47.9 % (p = 0.002), 24.2% vs. 53.1 % (p = 0.015), and 65.1% vs. 92.2% (0.002) respectively. On Cox multivariate analysis, patients who received adjuvant chemotherapy were associated with statistically improved significant LC (p = 0.002) and OS (p = 0.002). The variables included were: BMI (p = 0.050), distance travelled (p = 0.027), 8th AJCC TNM staging (p = 0.018) and tumor grade (p = 0.022). Conclusion In this hypothesis-generating report, among TNBC patients undergoing RT, adjuvant chemotherapy appears to be better than neoadjuvant chemotherapy in determining the clinical outcomes.


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