Phase II study of weekly docetaxel alone or in combination with trastuzumab in patients with metastatic breast cancer

Joshua P. Raff, Lakshmi Rajdev, Umekalsoom Malik, Yelena Novik, Jane M. Manalo, Abdissa Negassa, Una Hopkins, Catherine Sarta, Joseph A. Sparano

Research output: Contribution to journalArticle

38 Scopus citations

Abstract

This study was designed to determine the efficacy and toxicity of weekly docetaxel in metastatic breast cancer when given alone (for HER2/neu-negative disease) or with trastuzumab (for HER2/neu-overexpressing disease). Patients with metastatic breast carcinoma received docetaxel given on 2 different schedules (group 1A, 33 mg/m2 weekly [n = 21]; group 1B, 40 mg/m2 weekly for 3 weeks with 1 week off [n = 14]. Patients with HER2/neu-overexpressing disease also received trastuzumab 4 mg/kg on day 1, then 2 mg/kg on days 8 and 15 of each 28-day cycle (group 2). Fifty-two patients were treated with docetaxel alone (group 1A/B, n = 35 or in combination with trastuzumab (group 2, n = 17). Prior taxane therapy given every 3 weeks had been used for metastatic disease in 19 of 35 patients (54%) in group 1A/B in 2 of 17 patients (12%) in group 2. The mean delivered dose intensity of docetaxel was 29 mg/m2 per week. Partial response occurred in 7 of 35 patients (21%; 95% exact binomial confidence interval [CI], 9%-38%) treated with docetaxel alone, including 3 of 19 taxane-pretreated patient (16%) and 4 of 16 taxane-naive patients (25%). Partial response occurred in 10 of 17 patients (59%; 95% CI, 34%-82%) treated with docetaxel/trastuzumab. The most common grade 3/4 toxicities, occurring in ≥ 10% patients, included neutropenia (21%), pulmonary toxicity (12%), and hyperglycemia (10%). The median times to disease progression were 4.5 months (95% CI, 2.5-6.5 months) in the docetaxel group and 8.5 months (95% CI, 4.5-12.5 months) in the docetaxel/trastuzumab group. Weekly docetaxel/trastuzumab is an affective regimen for patients with HER2/neu-overexpressing metastatic breast cancer. Weekly docetaxel may be effective in as many as 20% of patients who had progressive disease after treatment with taxanes given every 3 weeks.

Original languageEnglish (US)
Pages (from-to)420-427
Number of pages8
JournalClinical breast cancer
Volume4
Issue number6
DOIs
StatePublished - Feb 2004

    Fingerprint

Keywords

  • Chronic heart failure
  • Epiphora
  • Fatigue
  • Onycholysis
  • Taxanes

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

Cite this