Phase II trial of doxorubicin and paclitaxel plus granulocyte colony- stimulating factor in metastatic breast cancer: An eastern cooperative oncology group study

Joseph A. Sparano, Ping Hu, Radha M. Rao, Carla I. Falkson, Antonio C Wolff, William C. Wood

Research output: Contribution to journalArticle


Purpose: Several groups have reported that the combination of doxorubicin plus paclitaxel given as a 3-hour intravenous (IV) infusion for up to eight cycles produces a high response rate (> 80%) and complete response rate (> 20%) in metastatic breast cancer, but is also complicated by a 20% incidence of congestive heart failure (CHF). The purpose of this phase II trial was to evaluate the antineoplastic activity of the regimen in a multi-institutional setting and to reduce the incidence of cardiotoxicity by limiting treatment to a maximum of six cycles. Patients and Methods: Fifty- two patients with advanced breast cancer received doxorubicin (60 mg/m2 by IV injection) followed 15 minutes later by paclitaxel (200 mg/m2 by IV infusion over 3 hours) every 3 weeks for four to six cycles. Results: Objective responses occurred in 25 of 48 assessable patients (52%; 95% confidence interval [Cl], 38% to 66%), including four complete responses (8%; 95% Cl, 0% to 16%). The median cumulative doxorubicin dose given was 240 mg/m2 (range, 132 to 360 mg/m2). Eleven patients (21%) were documented as having a decrease in the LVEF below normal, including three patients (6%; 95% Cl, 0% to 12%) who developed CHF. Conclusion: The doxorubicin/paclitaxel regimen that we used is unlikely to produce an objective response rate of more than 70% and a complete response rate of more than 20% in patients with metastatic breast cancer, and proved to be excessively cardiotoxic for use in the adjuvant setting.

Original languageEnglish (US)
Pages (from-to)3828-3834
Number of pages7
JournalJournal of Clinical Oncology
Issue number12
StatePublished - Dec 1999
Externally publishedYes


ASJC Scopus subject areas

  • Cancer Research
  • Oncology

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