Prognostic and predictive value of topoisomerase II alpha in a randomized trial comparing CMF to CEF in premenopausal women with node positive breast cancer (NCIC CTG MA.5)

2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 533-533 ◽  
Author(s):  
F. P. O’Malley ◽  
S. Chia ◽  
D. Tu ◽  
L. E. Shepherd ◽  
M. N. Levine ◽  
...  

533 Background: It has been suggested that Topoisomerase II alpha (TOP2A) status rather than Her-2/neu status may predict response to anthracycline chemotherapy in breast cancer. Methods: In MA.5, 710 premenopausal women with node positive breast cancer were randomized to receive adjuvant CEF (epirubicin 60 mg/m2 & 5-FU 500 mg/m2 both IV, days 1 & 8, and cyclophosphamide 75 mg/m2 p.o. days 1 through 14); vs CMF (methotrexate 40 mg/m2 & 5-FU 600 mg/m2 both IV days 1 & 8 and cyclophosphamide 100 mg/m2 p.o. days 1 through 14), all for six 28-day cycles. Tissue microarrays (TMAs) were constructed from paraffin embedded specimens from 447 (63%) of these patients. TOP2A was measured by fluorescence-in-situ hybridization (FISH), classifying tumors into 3 groups by TOP2A/CEP 17 ratios: amplified (Amp) if ratio ≥2; deleted (Del) if ratio < 0.8; normal (N) if ratio 0.8 to 2. Cox models assessed interaction between treatment and TOP2A, adjusting for age, nodal status, ER, HER-2/neu status, grade, surgery and tumor size. Results: Thirty-one patients (6.9%) had tumours with Del TOP2A; 53 (11.9%) with Amp TOP2A; and 353 (81.2%) with N TOP2A. 5-year disease-free survival (DFS) was 48%, 51%, and 61% for patients with Del, Amp and N TOP2A respectively (p=0.22 adjusted global test). 5-year overall survival (OS) was 55%, 61% & 75% for patients with Del, Amp, and N TOP2A (p=0.67 adjusted global test). HRs for DFS and OS by treatment and TOP2A are presented in the table . Conclusions: TOP2A status was a significant predictive factor for benefit from CEF treatment for OS. Although there was a trend for TOP2A status predicting improved DFS with CEF, the test for interaction was not significant. In adjusted analysis TOP2A did not reach significance as a prognostic factor for DFS or OS. (This study was supported by the Canadian Breast Cancer Research Alliance (CBCRA), the National Cancer Institute of Canada (NCIC) and the Canadian Cancer Society.) [Table: see text] [Table: see text]

1996 ◽  
Vol 14 (1) ◽  
pp. 46-51 ◽  
Author(s):  
S E Rivkin ◽  
S Green ◽  
J O'Sullivan ◽  
A B Cruz ◽  
M D Abeloff ◽  
...  

PURPOSE To determine whether the addition of surgical ovariectomy to standard chemotherapy prolongs disease-free survival (DFS) and overall survival in premenopausal patients with estrogen receptor (ER)-positive operable breast cancer with positive axillary nodes. PATIENTS AND METHODS Three hundred fourteen premenopausal patients with ER-positive, node-positive breast cancer were enrolled between July 1979 and July 1989. Patients were stratified according to number of involved nodes and type of primary surgery and randomized to receive either of the following: (1) cyclophosphamide 60 mg/m2/d by mouth for 1 year, methotrexate 15 mg/m2 intravenously (i.v.) weekly for 1 year, fluorouracil (5-FU) 400 mg/m2 i.v. weekly for 1 year, vincristine .625 mg/m2 i.v. weekly for the first 10 weeks, and prednisone weeks 1 to 10 with doses decreasing from 30 mg/m2 to 2.5 mg/m2 (CMFVP); or (2) bilateral ovariectomy followed by CMFVP. RESULTS The median follow-up time is 7.7 years and the maximum 13.2 years. Treatment arms are not significantly different with respect to either survival or DFS (one-sided log-rank, P = .55 and .70, respectively). The 7-year survival rate is 71% on the CMFVP arm and 73% on CMFVP plus ovariectomy. No significant differences were observed in node or receptor level subsets. CONCLUSION We conclude that, in this study, the addition of ovariectomy did not improve results over chemotherapy alone in the treatment of premenopausal women with node-positive, ER-positive, operable breast cancer. Our sample size was too small to detect a small improvement. The death hazards ratio of CMFVP/CMFVP plus ovariectomy was 1.22 (95% confidence interval [CI], .79 to 1.89).


2011 ◽  
Vol 130 (2) ◽  
pp. 507-515 ◽  
Author(s):  
Sei Hyun Ahn ◽  
Hee Jeong Kim ◽  
Jong Won Lee ◽  
Gyung-Yub Gong ◽  
Dong-Yong Noh ◽  
...  

1993 ◽  
Vol 11 (3) ◽  
pp. 454-460 ◽  
Author(s):  
M Kaufmann ◽  
W Jonat ◽  
U Abel ◽  
J Hilfrich ◽  
H Caffier ◽  
...  

PURPOSE We report two randomized trials of adjuvant systemic therapy in 747 patients < or = 65 years of age with histologically proven node-positive breast cancer. PATIENTS AND METHODS Patients were selected for the two trials on the basis of lymph node and hormone receptor status. The only stratification was based on the treating institution. In patients with a lower probability of recurrence (n = 276), a comparison between endocrine therapy (tamoxifen [Tam] 30 mg/d for 2 years) and chemotherapy (cyclophosphamide, methotrexate, and fluorouracil [CMF] intravenously [IV], six cycles every 4 weeks) was performed. In patients with a higher risk of recurrence (n = 471), a comparison between chemotherapy alone (doxorubicin plus cyclophosphamide [AC] i.v., eight cycles every 3 weeks) and the same chemotherapy plus Tam was made. RESULTS Overall, we found that CMF and Tam are equally effective in a subgroup of patients with a relatively good prognosis (low-risk patients). However, in the subset of women < or = 49 years old, a significantly greater disease-free survival (DFS) rate (P = .01) and overall survival (OS) rate (P = .002) was observed following therapy with CMF compared with Tam. In patients > or = 50 years old, the opposite was found, and Tam appeared to be superior to CMF (DFS, P = .003; OSm P = .5). These results must be interpreted cautiously, since a post-hoc stratification of patients by age (< or = 49, > or = 50) was performed, and significantly more younger, low-risk patients were randomized to receive chemotherapy alone and more older patients to receive Tam alone. Among patients with a relatively poor prognosis (high-risk patients), a combination of AC plus Tam was equivalent to AC and, when women were analyzed by age, this was found to be true of patients < or = 49 years as well. However, the addition of Tam to AC in women age > or 50 years resulted in a statistically significantly higher DFS (P = .01) and a trend toward better OS compared with women who received AC alone. CONCLUSION Further trials are required to analyze the role of combined simultaneous or sequential chemoendocrine adjuvant treatment or each single therapy alone in defined risk-adapted subsets of node-negative and node-positive patients.


2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 10610-10610
Author(s):  
J. Ahn ◽  
S. Kim ◽  
B. Son ◽  
S. Ahn ◽  
W. Kim

10610 Background: Recently, adjuvant AC followed by paclitaxel has improved disease-free survival (DFS) or overall survival (OS) of node-positive breast cancer. Although adjuvant TAC, as compared with FAC, significantly improves DFS and OS rate in node-positive breast cancer, AC→T has not been yet compared with FAC. Since 2001, we discussed the options of adjuvant CAF versus AC→T with patients who had 4 or more positive axillary nodes. We evaluated the efficacies of adjuvant CAF and AC→T, retrospectively. Methods: Between September 2001 and July 2004, a total of 1,394 patients underwent surgery and received adjuvant chemotherapy. Among them, 253 (18.1%) patients had 4 or more than axillary nodes and received either six cycles of CAF (n = 116) or 4 cycles of AC→T) (n = 137). The medical records and pathologic data of these patients were reviewed, retrospectively. Results: Median age of all patients was 46 years (range, 22∼76 years). The two groups were well balanced in terms of demographic and tumor characteristics. With a median follow-up period of 24 months (range, 6∼90 months), 49 (19.4%) patients had disease recurrence including 27 (23.3%) in CAF group and 22 (16.1%) in AC→T group (p = 0.155). The 3 year-DFS rate was 68.3% in CAF group and 71.1% in AC→T group (p = 0.9366), and the estimated 3-year OS rate was 90.3% and 92.3%, respectively (p = 0.8237). There was no significant difference in 3-year DFS rate according to hormone-receptor status. Febrile neutropenia occurred in 11 (9.6%) patients in CAF group and 7 (5.1%) patients in AC→T group (p = 0.222). Conclusion: Our data suggest that there is no significant difference in DFS or OS rates between six cycles of CAF and 4 cycles of AC followed by 4 cycles of paclitaxel as adjuvant chemotherapy in patients with 4 or more than involved axillary nodes. However, long-term follow-up period and prospective studies are needed to define better regimen. No significant financial relationships to disclose.


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