Conditions: Stage IV (Metastatic) Breast Cancer
Keywords: Breast cancer
Allocation: NON_RANDOMIZED | Intervention model: PARALLEL
Enrollment: 16
Healthy volunteers: no

Brief summary:
The purpose of this study is to: 1) determine the optimal tolerated dose of ABI-007 and vinorelbine, given concurrently on a weekly basis, in the absence of planned growth factor support with granulocyte colony-stimulating factor (G-CSF) (Patients with HER-2/neu positive disease may receive Herceptin, and 2) determine the optimal tolerated dose of ABI-007 and vinorelbine, given concurrently on a weekly basis, in the presence of planned growth factor support with G-CSF.

Detailed description:

Arms:
arm 1: Weekly intravenous infusion of 80 mg/m\^2 ABI-007, followed by an infusion of 15 mg/m\^2 vinorelbine. Participants with human epidermal growth factor receptor 2-positive (HER2+) and who met cardiac safety requirements were also administered weekly Herceptin® (trastuzumab) following completion of ABI-007 and vinorelbine infusions. No G-CSF support was planned. arm 2: Weekly intravenous infusion of 80 mg/m\^2 ABI-007, followed by an infusion of 15 mg/m\^2 vinorelbine. Participants with human epidermal growth factor receptor 2-positive (HER2+) and who met cardiac safety requirements were also administered weekly Herceptin® (trastuzumab) following completion of ABI-007 and vinorelbine infusions. G-CSF support was given. arm 3: Weekly intravenous infusion of 90 mg/m\^2 ABI-007, followed by an infusion of 20 mg/m\^2 vinorelbine. Participants with human epidermal growth factor receptor 2-positive (HER2+) and who met cardiac safety requirements were also administered weekly Herceptin® (trastuzumab) following completion of ABI-007 and vinorelbine infusions. G-CSF support was given.

Interventions: intervention 1: ABI-007 intervention 2: vinorelbine intervention 3: Trastuzumab intervention 4: G-CSF
Intervention descriptions: intervention 1: Weekly intravenous infusions over 30 minutes. intervention 2: Weekly intravenous infusions over 10-30 minutes, immediately after ABI-007. Vinorelbine is commercially available and was not supplied by the Sponsor. intervention 3: Trastuzumab was administered to participants who had HER-2-neu positive tumors. Participants received trastuzumab by IV infusion via a vascular access device following dosing with ABI-007 and vinorelbine. During their first cycle, 4 mg/kg was administered on day 1 of that cycle as a loading dose. During subsequent weekly treatments, 2 mg/kg was administered.

Trastuzumab is commercially available and was not supplied by the Sponsor. intervention 4: During Part 1, participants followed a dosing regimen with ABI-007 and vinorelbine without G-CSF treatment. However, G-CSF was allowed for administration as necessary in accordance with commonly accepted clinical guidelines.

In Part 2, participants started G-CSF treatment in concurrence with their ABI-007 and vinorelbine treatments. G-CSF was administered to all participants on Days 2-7 of each cycle, at a dose of 5 mcg/kg. If the participant's absolute neutrophil (ANC) count was \>20,000/mm\^3 on the day of anticipated chemotherapy, the site staff reduced the daily dose of G-CSF by 50% to 2.5 mcg/kg.

G-CSF is commercially available and was not supplied by the Sponsor.

Protocol document: