Correlation between Oncotype Dx score with histologic grade, tumor size and Ki67 in patients with early stage breast cancer: A single academic institution experience.

2015 ◽  
Vol 33 (28_suppl) ◽  
pp. 146-146 ◽  
Author(s):  
Kate Ida Lathrop ◽  
Marcela Mazo- Canola ◽  
Jonathan Gelfond ◽  
Barbara Hinojosa ◽  
Jay C Shiao ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Tumor Size ◽  
Early Stage ◽  
Recurrence Score ◽  
Academic Institution ◽  
Histologic Grade ◽  
Oncotype Dx ◽  
Coefficient Of Determination ◽  
Ki 67 ◽  
Grade One

146 Background: Oncotype DX is an RT-PCR based assay that calculates a recurrence score (RS) to predict chemotherapy benefit in patients with breast cancer. Some authors have proposed using Ki-67, receptor status, Nottingham grade, and tumor size as histo-pathologic variables that could potentially substitute for the RS. Comprehensive and larger reviews are still lacking in this filed. To our knowledge this is the largest retrospective review of cases in a single academic institution. Methods: We retrospectively reviewed and reported baseline patient demographic characteristics (including age, race and gender) and routine pathological features such as histologic grade, Ki-67, tumor size, and histologic type. All patients included in this study had an Oncotype Dx ordered between 2007 and 2014. Results: Our analysis included 252 patients of which 248 were females and 4 were males, median age was 56, median tumor size of 2.1 cm. The majority of cases were grade 2 with 49.4%, followed by grade 3 with 28.1% and grade one represented 22.5% of the sample. Ki-67 ranged from 2-98 %. Three variables correlated significantly with Oncotype Dx: tumor size (p = 0.0115), Ki-67 (p = 1.509e-09) and grade (p = 0.0307). Using these three variables together, the percentage of variance on the Oncotype Dx score was 0.35 (R2- coefficient of determination). Conclusions: While tumor size, grade and Ki-67 individually correlate significantly with Oncotype Dx score, taken together, they cannot reliably predict the RS. Also, the capability of these three factors to predict the RS decreases for tumors with high RS. Therefore, we conclude the RS can provide additional valuable information and should not be replaced by analysis of routine histologic variables alone.

Correlation between Oncotype DX score with histologic grade, tumor size and Ki67 in patients with early stage breast cancer: A single academic institution experience.

2015 ◽  
Vol 33 (15_suppl) ◽  
pp. e11558-e11558
Author(s):  
Kate Ida Lathrop ◽  
Marcela Mazo- Canola ◽  
Jonathan Gelfond ◽  
Jay C Shiao ◽  
Barbara Hinojosa ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Tumor Size ◽  
Early Stage ◽  
Academic Institution ◽  
Histologic Grade ◽  
Oncotype Dx ◽  
Early Stage Breast Cancer

Recurrence Score across the age spectrum: Is there an age discrimination?

2013 ◽  
Vol 31 (26_suppl) ◽  
pp. 27-27
Author(s):  
Franz Omar Smith ◽  
Marie Catherine Lee ◽  
Geza Acs ◽  
William J. Fulp ◽  
Ji-Hyun Lee ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Estrogen Receptor ◽  
Lymph Node ◽  
Treatment Planning ◽  
Tumor Size ◽  
Predictive Power ◽  
Early Stage ◽  
Recurrence Score ◽  
Positive Lymph Node ◽  
Node Negative

27 Background: Treatment planning for early-stage estrogen receptor (ER) positive, lymph node negative breast cancer was based on prognostic factors with limited predictive power such as age. The Recurrence Score (RS) from the Oncotype DX assay (ODX) provides predictive power transcending age but is rarely applied to the elderly or young patients (pts). We examined our experience with RS along the age continuum. Methods: Retrospective review was conducted of prospectively gathered breast cancer pts having a RS obtained as part of their cancer care. Eligibility for performance of the ODX was based on NCCN guidelines or physician discretion. Comparisons on RS were made by age groups (young: <45yrs; middle: >45yrs -<70yrs: elderly: >70yrs) using general linear regression model and the exact Wilcoxon Rank Sum Test. Results: 677pts had 681 tumors with RS available (89 young, 476 middle and 112 elderly pts). Median RS for the study pts was 17 (range 0-85) and 16, 17, and 15 for the young, middle, and elderly respectively. Median age was 58yrs (range: 27-95); young, middle, and elderly was 42, 58, and 74yrs respectively. Age as a continuous or categorical variable was not predictive of RS (p value = 0.38, 0.58 respectively). No significant differences were seen between age cohorts for histology, mitotic rate, lymphovascular invasion (LVI), grade, nodal status, stage, or strength of ER positivity. Mastectomy rates were higher in the young (57.5%), compared to the middle (42.5%) and elderly (39.6%) (p=0.02). Median invasive tumor size was 1.6, 1.5, and 1.5cm for young, middle, and elderly. Larger tumor size, as a continuous variable, equaled higher RS (p=0.046). Other significant factors predicting higher RS were increased mitosis (p<0.001), LVI (p=0.013), high grade (p<0.001), and weak (<10%) ER positivity (p<0.001). Nodal status, stage, and histology did not affect RS. Conclusions: Age has limited predictive power for treatment planning for breast cancer. Age alone should not preclude recommendations for performance of ODX in estrogen receptor positive lymph node negative early stage breast cancer as the RS distribution across the spectrum of age is well matched.

Evaluating utilization characteristics for the Oncotype DX recurrence score in early-stage breast cancer.

2011 ◽  
Vol 29 (15_suppl) ◽  
pp. 625-625
Author(s):  
C. Chen ◽  
D. A. Patt ◽  
D. R. Kazzaz ◽  
J. Shankleton ◽  
M. T. Forsyth ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Early Stage ◽  
Recurrence Score ◽  
Oncotype Dx ◽  
Early Stage Breast Cancer ◽  
Oncotype Dx Recurrence Score

Prospective study of the impact of using the 21-gene recurrence score assay on clinical decision making in women with estrogen receptor-positive, HER2-negative, early-stage breast cancer in France.

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. 568-568 ◽  
Author(s):  
Joseph Gligorov ◽  
Xavier B. Pivot ◽  
Herve L. Naman ◽  
William Jacot ◽  
Dominique Spaeth ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Estrogen Receptor ◽  
Early Stage ◽  
Recurrence Score ◽  
Oncotype Dx ◽  
Early Stage Breast Cancer ◽  
Treatment Recommendation ◽  
Endocrine Treatment ◽  
Estrogen Receptor Positive ◽  
The Impact

568^ Background: The 21-gene Oncotype DX Recurrence Score (RS) is a validated assay to help inform the appropriate treatment of estrogen receptor-positive (ER+), early stage breast cancer in the adjuvant setting. Treatment traditions regarding choice of adjuvant treatment vary significantly in different countries. This prospective multicenter study is the first to assess the impact of using the Oncotype DX assay in the French clinical setting. Methods: A total of 100 consecutive patients with ER+, HER2-negative, node negative or pN1 (mi) breast cancer were enrolled. Overall treatment recommendation change, change from chemoendocrine to endocrine alone and change from endocrine alone to chemoendocrine treatment were recorded. Medical oncologists completed questionnaires regarding their confidence in their recommendation before and after knowing the patient’s RS. A preliminary analysis was conducted on the first 92 evaluable patients with data available at the time of abstract submission. Final data will be presented at the meeting. Results: Prior to Oncotype DX 49% of patients were recommended chemoendocrine treatment and 51% endocrine treatment alone. After having the RS, 26% were recommended chemoendocrine treatment and 74% endocrine treatment alone. The overall reduction in chemotherapy recommendation from 49% to 26% was significant (p<0.001). Of patients originally recommended chemoendocrine treatment, 58% were changed to endocrine treatment alone after having the RS. Of patients originally recommended endocrine treatment, 11% were changed to chemoendocrine treatment after receiving the RS. There was a significant improvement in physician confidence in treatment recommendations (p=0.002) when using Oncotype DX. Conclusions: These are the first prospective data regarding the impact of using Oncotype DX in France. Using Oncotype DX was associated with a significant change in treatment decisions and an overall reduction in chemotherapy use. The data are consistent with those presented from Germany, Spain, the UK and the US.

scholarly journals Comparison between Oncotype DX test and standard prognostic criteria in estrogen receptor positive early-stage breast cancer

2011 ◽  
Vol 9 (3) ◽  
pp. 354-358 ◽  
Author(s):  
Marcelo Roberto Pereira Freitas ◽  
Sergio Daniel Simon
Keyword(s):  
Breast Cancer ◽  
Estrogen Receptor ◽  
Early Stage ◽  
Recurrence Score ◽  
Oncotype Dx ◽  
Early Stage Breast Cancer ◽  
Exact Test ◽  
Prognostic Criteria ◽  
Estrogen Receptor Positive ◽  
Kappa Value

ABSTRACT Objective: To compare the prognosis estimated by standard prognostic criteria versus the prognosis estimated by the Oncotype DX. Methods: A retrospective study was performed on 22 patients with positive estrogen receptor, early-stage breast cancer who had an Oncotype DX recurrence score available. Results: Kappa value between Oncotype DX and standard prognostic criteria was: Adjuvant! (K = 0.091), Adjuvant! (Transbig) (K = 0.182) and National Comprehensive Cancer Network (K = 0.091). The Fisher's exact test did not show correlation between Oncotype and standard prognostic criteria. Conclusion: Standard prognostic criteria showed no correlation with Oncotype DX.

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