382 - Which is your choice?; neoadjuvant adriamycin and doxetaxel (AD) versus adriamycin, cyclophosphamide and paclitaxel(AC-T) in locally advanced breast...

Date 28 September 2012
Event ESMO Congress 2012
Session Publication Only
Topics Anti-Cancer Agents & Biologic Therapy
Breast Cancer, Locally Advanced
Presenter Seok Yun Kang
Authors S.Y. Kang1, K.S. Kim2
  • 1Hematology-oncology, Ajou University School of Medicine, Suwon/KR
  • 2Surgery, Ajou University School of Medicine, Suwon/KR

Abstract

Background

It is well known that neoadjuvnat chemotherapy is acceptable for women with locally advanced breast cancer. However, it is not achieving consensus that what kind of regimen is most effective and tolerable, although lots of regimens and dosages were clinically used.

Materials and methods

We compared the patients who were received adriamycine and doxetaxel (AD) and adriamycin, cyclophosphamide followed by paclitaxel (AC-T) as neoadjuvant chemotherapy and then received operation from 1 January 2006 to 30 September 2011. The group of AD regimen was scheduled for 3 cycles of AD (50mg/m2 and 75mg/m2, respectively) with 3 weeks interval and then completes resection. The group of AC-T was scheduled for 4 cycles of AC regimen (50mg/m2 and 500mg/m2, respectively) and then 4 cycles of paclitaxel (175mg/m2) with 3 weeks interval and then completes resection.

Results

The patients who were enrolled in this study were totally 78(AD and AC-T were equally 38.) The significant differences of patients' characteristics between two groups were not observed. However, the significant differences were identified in hematologic toxicity including neutropenia more than grade 3 p < 0.001), neutropenic fever p < 0.001), dose reduction rate due to hematologic toxicity (p = 0.012) and chemotherapy induced anemia (p = 0.012)), although chemotherapy induced thrombocytopenia (p = 1.0) was not different between two groups. No differences were identified in non-hematologic toxicity including hepatic toxicity, gastrointestinal toxicity and peripheral neuropathy. The response of chemotherapy was no difference between two groups, which was estimated by conversion rate of breast conserving surgery, clinical response of chemotherapy (p = 0.148), clinically downstaging rate (p = 0.464) and pathologic complete response rate (p = 1.0). There is no factor to predicting pathologic complete response or conversion to breast conservation in this study.

Conclusions

The neoadjuvant AC-T regimen is more tolerable with similar clinical outcome compared to AD regimen.

Disclosure

All authors have declared no conflicts of interest.