Phase II trial of doxorubicin and docetaxel plus granulocyte colony-stimulating factor in metastatic breast cancer: Eastern Cooperative Oncology Group Study E1196.
OBJECTIVE
The purpose of this multi-institutional phase II trial was to evaluate the efficacy and toxicity of doxorubicin and docetaxel plus granulocyte colony-stimulating factor (G-CSF) in patients with metastatic breast cancer. The primary objective was to determine whether the combination produced a response rate of at least 50%.


METHODS
Fifty-four patients with metastatic breast cancer received doxorubicin (60 mg/m(2) by intravenous [IV] injection) followed 1 hour later by docetaxel (60 mg/m(2) by IV infusion over 1 hour) every 3 weeks for up to eight cycles. All patients also received G-CSF.


RESULTS
Objective response occurred in 29 (57%) of 51 eligible patients (95% confidence interval [CI], 42% to 70%), including three patients who had a complete response (6%; 95% CI, 1% to 16%). The median response duration was 7 months (95% CI, 6.0 to 15.0 months), median time to treatment failure was 7. 6 months (95% CI, 6.2 to 9.9 months), and the median survival was 27. 5 months (95% CI, 21.5 months to upper limit not reached). The median cumulative doxorubicin dose was 395 mg/m(2) (range, 60 to 480 mg/m(2)). Fifteen patients (28%) were documented to have a decrease in the left ventricular ejection fraction below normal, and three patients (6%; 95% CI, 1% to 15%) developed congestive heart failure.


CONCLUSIONS
Using criteria that we had defined a priori, the doxorubicin-docetaxel regimen as used in this study was sufficiently active and tolerable to justify a phase III comparison with doxorubicin-cyclophosphamide in early-stage breast cancer.
Sparano
J A
JA
Albert Einstein Comprehensive Cancer Center, Montefiore Medical Center, Bronx, NY 10461-2373, USA.
O'Neill
A
A
Schaefer
P L
PL
Falkson
C I
CI
Wood
W C
WC
D000328:Adult; D000368:Aged; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use*; D001943:Breast Neoplasms / Q000188:drug therapy* / Q000473:pathology; D000077143:Docetaxel; D004317:Doxorubicin / Q000008:administration & dosage; D004334:Drug Administration Schedule; D005260:Female; D016179:Granulocyte Colony-Stimulating Factor / Q000008:administration & dosage*; D006801:Humans; D007262:Infusions, Intravenous; D007275:Injections, Intravenous; D008875:Middle Aged; D017239:Paclitaxel / Q000008:administration & dosage / Q000031:analogs & derivatives; D016019:Survival Analysis; D043823:Taxoids; D016896:Treatment Outcome
D043823:Taxoids; D016179:Granulocyte Colony-Stimulating Factor; D000077143:Docetaxel; D004317:Doxorubicin; D017239:Paclitaxel