scholarly journals EPV011/#170 Adjuvant chemotherapy-induced amenorrhea in luminal breast cancer patients: a strong prognostic factor in Tunisian premenopausal women

2021 ◽  
Author(s):  
A Zribi ◽  
I Ben Abdallah ◽  
S Ben Nasr ◽  
S Fendri ◽  
N Mansouri ◽  
...  
2017 ◽  
Vol 35 (15_suppl) ◽  
pp. e12007-e12007
Author(s):  
Manuel Pedregal ◽  
Federico Rojo ◽  
Cristina Carames Sanchez ◽  
Francisco Lobo ◽  
Yann Izarzugaza ◽  
...  

e12007 Background: Breast cancer prognosis is influenced by several factors including Ki67 expression which may have a predictive role in luminal breast cancer patients. The aim of this study was to assess the value of Ki67 in breast cancers with positive hormonal receptors and HER2 overexpressed and to evaluate its impact on survival. Methods: Seventy eight consecutive patients diagnosed with locally advanced HER2 positive breast cancer who were treated with adjuvant therapy based on HER2 treatment were selected for this study (2004-2014). The adjuvant chemotherapy schemes were 44% TCH, 16% FEC, 11% AC/T and 29% other therapies. The median of followup was 68 months. Tumor proliferation was assessed immunohistochemically by Ki67 expression and calculated as percentage of stained tumor cells from this cohort previous to adjuvant chemotherapy administration and the results obtained were correlated with disease status and outcome. Results: High proliferation defined as a percentage > 15 of tumor cells was observed in 69% of the breast cancer patients cases. High proliferation significantly predicted longer overall survival (OS) (Log rank 0,012). At 10 years of follow-up, 93% of the patients with KI67 high expression were alive versus 43% of patients without overexpression. Multivariate analysis confirmed the clinical significance of Ki67 predicting OS for luminal HER2 breast cancer patients (p 0,04 y HR 9,6). Conclusions: High proliferation identifies a setting of luminal-B HER2+ subtype breast cancer patients with a significantly longer overall survival.


2019 ◽  
Vol 37 (15_suppl) ◽  
pp. 544-544 ◽  
Author(s):  
Pier Franco Conte ◽  
Gaia Griguolo ◽  
Maria Vittoria Dieci ◽  
Giancarlo Bisagni ◽  
Alba Ariela Brandes ◽  
...  

544 Background: We investigated the prognostic role of the PAM50 HER2-enriched (HER2-E) subtype in HER2+ early breast cancer enrolled in the randomized Phase III ShortHER trial. Methods: The ShortHER study randomized 1254 HER2+ early breast cancer patients to receive 9 weeks vs 1 year of adjuvant trastuzumab combined with chemotherapy. Gene expression measured using nCounter platform was available for 438 surgical samples. Intrinsic subtyping was determined using the research-based PAM50 predictor. Metastasis-free survival (MFS) was calculated from randomization to distant disease recurrence or death (median follow up 72 months). Uni- and multi-variable analysis were performed using Cox models. Results: PAM50 subtype distribution was: HER2-E 53% (N = 233), Luminal A 20% (N = 87), Luminal B 10% (N = 43), Normal-like 11% (N = 48) and Basal-like 6% (N = 27). HER2-E subtype was associated with hormone receptor-negative status (p < 0.001) and TILs ≥20% (p < 0.001), but not with stage and age ( < or ≥60 yrs). HER2-E subtype was associated with worse MFS vs other PAM50 subtypes overall (HR 2.78, p = 0.001), in the short (HR 2.24, p = 0.046), and in the long arm (HR 4.04, p = 0.011). Multivariable Cox model confirmed the independent prognostic value of HER2-E subtype (Table). HER2-E subtype added significant prognostic value on top of clinicopathological variables (Likelihood ratio test p < 0.001). Conclusions: HER2-E intrinsic subtype is an independent prognostic factor for HER2+ early breast cancer patients treated with adjuvant chemotherapy and trastuzumab. Integration of PAM50 subtype in prognostic algorithms can help refine risk stratification. These findings warrant independent validation. Clinical trial information: NCT00629278. [Table: see text]


2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 670-670 ◽  
Author(s):  
K. Lee ◽  
B. Kim ◽  
S. Lee ◽  
W. Han ◽  
D. Kim ◽  
...  

670 Background: Bcl-2 is an anti-apoptotic marker and regulated by hormonal receptor pathways in breast cancer. We performed this study to assess the prognostic significance of ER, PR, p53, c-erbB2, bcl-2, Ki-67, and EGFR as a marker for relapse in breast cancer patients who received same adjuvant therapy in a single institution. Methods: A cohort of 154 curatively resected breast cancer patients who had 4 lymph nodes or more and received doxorubicin and cyclophosphamide followed by paclitaxel (AC/T) as adjuvant chemotherapy was analyzed for clinicopathologic characteristics including disease-free survival (DFS). Patients with ER and/or PR expression received 5 years of tamoxifen following AC/T. The markers were analyzed by immunohistochemistry. Results: Median f/u duration was 25 months and 32 patients (20.8%) had recurrences. Stage (IIIa vs. IIIc) affected recurrences significantly, however, types of surgery, histology, histologic grade, presence of endolymphatic emboli, or close resection margin did not. Among the immunohistochemical markers, bcl-2 expression was the only one to be associated significantly with prolonged DFS (median 54 mo in bcl-2 (−) vs. not reached in bcl-2 (+); p=0.016). Furthermore, bcl-2 was an independent prognostic factor for DFS in multivariate analysis. Bcl-2 expression was significantly correlated with ER expression (p<0.001), and inversely correlated with c-erbB2 overexpression (p=0.027). Patients with both ER and bcl-2 expression had a longer DFS compared to the other patients (not reached vs. 54 mo, p=0.019). Patients with bcl-2 expression had a significantly longer DFS even in ER (+) subgroups (not reached vs 54 mo; p=0.011). Patients with c-erbB2 overexpression, ER (−) and bcl-2 (−) had a shorter DFS than the others (38 mo vs. not reached; p=0.029). Conclusions: In our homogenous patient cohort, bcl-2 expression was correlated with ER expression, and inversely correlated with c-erbB2 overexpression. Bcl-2 was an independent prognostic factor for DFS in curatively resected stage III breast cancer patients. No significant financial relationships to disclose.


2020 ◽  
Vol 38 (15_suppl) ◽  
pp. 506-506 ◽  
Author(s):  
Fatima Cardoso ◽  
Laura van 't Veer ◽  
Coralie Poncet ◽  
Josephine Lopes Cardozo ◽  
Suzette Delaloge ◽  
...  

506 Background: The 70-gene signature MammaPrint has been shown to identify breast cancer patients for whom adjuvant chemotherapy (CT) could be safely omitted even in the presence of unfavorable standard clinical-pathological criteria. The MINDACT primary endpoint at 5 years median follow-up was met in 2016 (Cardoso et al, NEJM 2016) with a distant metastasis free survival (DMFS) rate at 5 years of 94.7% (95% CI: 92.5-96.2) in clinical high (C-High) / genomic low (G-Low) risk patients who received no CT. Longer follow-up is now available. Methods: 6693 patients were enrolled in the prospective phase III randomized MINDACT study (EORTC 10041/BIG3-04) between 2007-2011. We assessed the DMFS rate at 5 years in the primary test (PT) population of C-High / G-Low patients who were randomized to receive no CT (n = 644). As secondary analysis, we evaluated DMFS and overall survival (OS) in the intention to treat (ITT) population of the C-High / G-Low group randomized to CT vs no CT (n = 749 and 748 respectively). Comparisons between CT and no CT groups are low-powered. We used Kaplan-Meier estimates for time to event endpoints and hazard ratios (HR) with 95% CI from cox-regression models adjusted for stratification factors used for the randomization. Results: The median follow-up is 8.7 years, resulting in an updated 5-year DMFS rate for the PT population of C-High / G-Low patients with no CT of 95.1% (95% CI 93.1-96.6). The updated outcomes of the ITT population of C-High / G-Low patients are shown in the table. Further analyses will update the suggested age-dependent effect of CT omission for luminal breast cancer seen at 5 years in pre- versus post-menopausal women as in Tailor-X (Piccart et al, SABCS 2019). Conclusions: The primary DMFS endpoint at 5 years continues to be met in CT untreated C-High / G-Low risk women, confirming MINDACT as a positive de-escalation study. With longer follow-up and in line with the natural history of luminal breast cancer, more distant relapses do occur but the estimated gain of 2.6% for CT administration in C-High / G-Low patients remains small in light of CT harmful effects. The level IA evidence for the clinical utility of the 70-gene signature for adjuvant CT decision making is maintained. Clinical trial information: NCT00433589 . [Table: see text]


2020 ◽  
Vol 23 (4) ◽  
pp. 398
Author(s):  
Ha Rim Ahn ◽  
Sang Yull Kang ◽  
Hyun Jo Youn ◽  
Sung Hoo Jung

Sign in / Sign up

Export Citation Format

Share Document