Predictors of pathologic response and correlation with long-term outcomes in a trial of neoadjuvant concurrent paclitaxel radiation in locally advanced breast cancer (LABC).

2010 ◽  
Vol 28 (15_suppl) ◽  
pp. 589-589
Author(s):  
S. Adams ◽  
S. C. Lymberis ◽  
A. B. Chakravarthy ◽  
D. V. Spicer ◽  
T. Hochman ◽  
...  
2015 ◽  
Vol 11 (1) ◽  
pp. 36
Author(s):  
Zorica I Tomasevic ◽  
Zoran M Tomasevic ◽  
Zeljko Kovac ◽  
Zorka Milovanovic ◽  
Dana Grujicic ◽  
...  

We present a patient who first developed a distant metastatic site in the cerebellum during treatment for Her2 3+ locally advanced breast cancer (LABC). LABC was in complete remission at that time and isolated cerebellar metastasis was resected. The patient is still alive more than 135 months after LABC diagnosis, and more than 99 months after neurosurgery, and is still receiving trastuzumab without further progression or any toxicity. To the best of our knowledge, this is first report of such exceptional disease course for a patient with a predicted grave prognosis according to all prognostic parameters.


2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 10580-10580
Author(s):  
M. Margelí ◽  
B. Cirauqui ◽  
V. Vallejos ◽  
C. Sánchez ◽  
A. Mariscal ◽  
...  

10580 Introduction: The response of locally advanced breast cancer (LABC) to Primary therapy (PT) may be monitored clinically and by mammography (MG). Magnetic resonance (MR) and 99mTc-sestamibi scintimammography (SMM) are increasingly being used. The aim of this study was to determine whether MG, MR and SMM are accurate indicators of tumour response to PT and whether they are predictors of histological response. Patients and Methods: A prospective observational study was approved at our institution and 52 patients( p) with core biopsy diagnostic of LABC and written consent were enrolled (mean age 52 years, SD 13) All p had clinical, MG, MR, SM assessment pre- and post- PT. Primary chemotherapy based on anthracyclines was administered as follows: 19 p FEC, 17 p AC-Docetaxel, 8 p Gemcitabine- Doxorubicine- Paclitaxel, 1 p FEC- Docetaxel and 1 p Carboplatin- VP16. 6 p were treated with hormone-therapy. RECIST criteria were considered for clinical response assessment and the same criteria was adapted for imaging and pathologic response. Results: After PT 33 tumours were considered not suitable for breast-conserving surgery. Based on histopathological findings, 10 (19%) lesions showed complete pathologic response, 30 (58%) partial response, 12 (23%) stabilization. No progression was detected. Clinical assessment of tumour complete response agreed with pathology in 40 of 52 tumours (78%), and with MG in 39 (78%). Correlation between MG and pathological findings was observed in 42 p (84%). Correlation between MR and pathological findings was observed in 42 p (82%). Correlation between SMM and pathological findings was observed in 31 p (66%). Among patients with complete pathologic remission, 9 of ten patients achieve a complete response by MR and SMM. Conclusion: In conclusion, our results don’t show that MR and SMM add any benefit to the diagnostic arsenal for predicting histopathological complete response to PT. However these new diagnostic methods should be considered in selected cases. No significant financial relationships to disclose.


2009 ◽  
Vol 27 (15_suppl) ◽  
pp. e11545-e11545
Author(s):  
R. Venkitaraman ◽  
S. G. Ramanan ◽  
K. R. Rajalekshmy ◽  
T. G. Sagar ◽  
V. Shanta

e11545 Background: Combined modality treatment is essential for acheiving optimal results in the management of locally advanced breast cancer (LABC). Neoadjuvant chemoradiotherapy is considered a promising approach for LABC. Pathologic complete response to neoadjuvant treatment for LABC predicts prolonged survival. Aim: To determine the rate of pathologic complete response (pCR) after neoadjuvant chemotherapy and radiotherapy for locally advanced breast cancer and to identify the predictors of pCR. Methods: Female patients with noninflammatory LABC received neo-adjuvant chemotherapy with concurrent radiotherapy, and then underwent mastectomy and axillary clearance. The pathologic response was analysed with respect to the baseline clinical factors and the receptor status on immunohistochemical studies of the initial biopsy specimen. Results: Of the 296 patients included in the study, 286 underwent mastectomy. Ninety-two (31 %) patients achieved a pCR. The significant predictor of a pCR was Oestrogen receptor negative status (p = 0.025), while progesterone receptor negative status (p=0.069 ), HER2 status (p= 0.62), age (p= 0.074), stage (p=0.6), grade (p=0.86), type of chemotherapy (p=0.37) and number of cycles of chemotherapy (p = 0.23) did not predict for pathologic response. Clinical complete response predicted for a pathologic complete response (p=0.0001). Conclusions: Neoadjuvant concurrent chemoradiotherapy results in good pathologic complete response rates in LABC. High pathologic compete response rates are achieved in patients with endocrine receptor negative disease, with neoadjuvant chemoradiotherapy, which might result in improved outcome in this high risk subset of patients. No significant financial relationships to disclose.


2014 ◽  
Vol 15 (8) ◽  
pp. 3435-3441 ◽  
Author(s):  
Simon Blechman Zeichner ◽  
Ludimila Cavalcante ◽  
Gabriel Pius Suciu ◽  
Ana Lourdes Ruiz ◽  
Alicia Hirzel ◽  
...  

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 529-529
Author(s):  
N. Hylton ◽  
J. Blume ◽  
C. Gatsonis ◽  
R. Gomez ◽  
W. Bernreuter ◽  
...  

529 Background: American College of Radiology Imaging Network (ACRIN) trial 6657, the imaging component of the I-SPY trial (CALGB 150007/150012), is testing MRI for predicting response to treatment and stratifying risk-of-recurrence in patients with locally-advanced breast cancer. We report preliminary results evaluating MRI for prediction of pathologic response. Methods: Women with ≥3 cm invasive breast cancer receiving neoadjuvant chemotherapy (NACT) with anthracycline-cyclophosphamide (AC) followed by a taxane (T) were enrolled from May 2002 to March 2006. MRI was performed prior to NACT (t1), after 1 cycle AC (t2), between AC and T (t3), and following T prior to surgery (t4). MRI tumor size assessments included longest diameter (MRLD) and tumor volume (MRVol). Clinical size (clinsize) and mammographic longest diameter (MGLD) were also recorded. Linear dimension was measured by the radiologist for MGLD and MRLD; MRVol was calculated by computer using signal enhancement ratio (SER) thresholds. Change in clinical and MRI variables at t2 were compared for ability to predict pathologic complete response (pCR). Results: 237 patients were enrolled at 9 institutions. 216 patients with complete imaging were analyzed. Of tumor size measurements at t4, MRVol showed the strongest correlation with pathsize among clinsize (r = 0.44), MGLD (ns), MRLD (r = 0.28) and MRVol (r = 0.61). Early change in MRVol measured at t2 was the only variable predictive of pCR among clinsize (p = 0.14, 0.15), MRLD (p = 0.40, 0.07), MRVol (p = 0.02, 0.01) and peak SER (p = 0.53, 0.72) in univariate and multivariate logistic regression, respectively. Conclusions: Tumor response measured volumetrically by MRI is a stronger and earlier predictor of pathologic response after NACT than clinical exam or tumor diameter. This work is funded by NIH/ACRIN U01 CA79778; CALGB CA31946, CA33601; NCI SPORE CA58207. [Table: see text]


2009 ◽  
Vol 27 (15_suppl) ◽  
pp. e11510-e11510
Author(s):  
T. N. Shenkier ◽  
M. Hayes ◽  
K. A. Gelmon ◽  
S. Chia ◽  
C. Bajdik ◽  
...  

e11510 Background: To determine the response, tolerability, and long-term outcome of a neoadjuvant platinum-containing regimen for locally advanced breast cancer (LABC). To search for correlation between pathologic complete response (pCR) and predefined biomarkers in this cohort. Patients and Methods: Patients with LABC received eight cycles of either sequence A or B. Sequence A was doxorubicin 60 mg/m2 and paclitaxel 175 mg/m2 (AT) q3w X 4 followed by cisplatin (C) 60 mg/m2 and paclitaxel 90 mg/m2 (CT) q2w X 4. Sequence B was CT x 4 followed by AT x 4. In addition to estrogen receptor and HER2, immunohistochemistry (IHC) for MDR-1, MRP-1, topoisomerase IIα(topoIIα) and p53 was performed. Results: 88 patients were evaluable for response and toxicity. Median follow-up was 97 months. The overall pCR rate was 21.5%. For subgroups ER+/HER2-, HER2 +, and double negative (ER-/ HER2-) disease the pCR was 5.9%,23.3% and 35% respectively, p=0.006. Five year(y) overall survival for the entire cohort was 71.1%. Five y overall survival was 88.1% (CI 77.1%, 99.1%) for the ER positive HER2 negative group compared to 68.5% (CI 51.3%, 85.7%) and 49.5 (CI 27.4%, 71.6%) in the HER2 positive and “double negative” group respectively (p=0.0077). Over-expression of topo IIα was correlated with pCR (p<0.001). There were no toxic deaths. Conclusions: A platinum-containing neoadjuvant regimen was well tolerated and achieved a pCR rate which compares favorably to other recent studies of multi-agent chemotherapy. Further studies tailored for specific breast cancer subtypes are required. No significant financial relationships to disclose.


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