Paclitaxel Versus Doxorubicin as First-Line Single-Agent Chemotherapy for Metastatic Breast Cancer: A European Organization for Research and Treatment of Cancer Randomized Study With Cross-Over

2000 ◽  
Vol 18 (4) ◽  
pp. 724-724 ◽  
Author(s):  
R. Paridaens ◽  
L. Biganzoli ◽  
P. Bruning ◽  
J.G. M. Klijn ◽  
T. Gamucci ◽  
...  

PURPOSE: To compare the efficacy of paclitaxel versus doxorubicin given as single agents in first-line therapy of advanced breast cancer (primary end point, progression-free survival [PFS]) and to explore the degree of cross-resistance between the two agents. PATIENTS AND METHODS: Three hundred thirty-one patients were randomized to receive either paclitaxel 200 mg/m2, 3-hour infusion every 3 weeks, or doxorubicin 75 mg/m2, intravenous bolus every 3 weeks. Seven courses were planned unless progression or unacceptable toxicity occurred before the seven courses were finished. Patients who progressed within the seven courses underwent early cross-over to the alternative drug, while a delayed cross-over was optional for the remainder of patients at the time of disease progression. RESULTS: Objective response in first-line therapy was significantly better (P = .003) for doxorubicin (response rate [RR], 41%) than for paclitaxel (RR, 25%), with doxorubicin achieving a longer median PFS (7.5 months for doxorubicin v 3.9 months for paclitaxel, P < .001). In second-line therapy, cross-over to doxorubicin (91 patients) and to paclitaxel (77 patients) gave response rates of 30% and 16%, respectively. The median survival durations of 18.3 months for doxorubicin and 15.6 months for paclitaxel were not significantly different (P = .38). The doxorubicin arm had greater toxicity, but this was counterbalanced by better symptom control. CONCLUSION: At the dosages and schedules used in the present study, doxorubicin achieves better disease and symptom control than paclitaxel in first-line treatment. Doxorubicin and paclitaxel are not totally cross-resistant, which supports further investigation of these drugs in combination or in sequence, both in advanced disease and in the adjuvant setting.

1988 ◽  
Vol 6 (12) ◽  
pp. 1811-1814 ◽  
Author(s):  
G W Sledge ◽  
P J Loehrer ◽  
B J Roth ◽  
L H Einhorn

Cisplatin has had only minimal activity when used as second- and third-line chemotherapy for metastatic breast cancer (MBC). There have been no phase II studies in the United States evaluating cisplatin in patients with MBC with no prior chemotherapy. We therefore treated 20 consecutive patients with cisplatin 30 mg/m2/d for four days every 3 weeks for a maximum of six courses. We obtained partial responses in nine of 19 evaluable patients (47%), with responses in liver, lung, and soft tissue indicator lesions. Our data suggest that cisplatin has substantial single-agent activity as front-line therapy in MBC, and should be considered for inclusion in first-line combination chemotherapy regimens.


2006 ◽  
Vol 2 (6) ◽  
pp. 268-273
Author(s):  
David Loesch ◽  
Nicholas Robert ◽  
Stephen Jones ◽  
Maha Elkordy ◽  
Des Ilegbodu ◽  
...  

Purpose To determine the response rate (RR), progression-free survival (PFS), and toxicity in patients with HER-2/neu–negative metastatic breast cancer treated with first-line paclitaxel in a de-escalating dosing schedule. Patients and Methods Between August 1999 and December 2000, 73 patients were enrolled. Paclitaxel was administered on day 1 (175 mg/m2) and on days 8 and 15 (80 mg/m2 each) in each 4-week cycle (1 week of rest). Doses were de-escalated with the aim of reducing toxicity. An Eastern Cooperative Oncology Group performance status of 0, 1, or 2 was found in 55%, 41%, and 4% of patients, respectively. Median age was 59 years (range, 38 to 84 years), and 86% of patients had received prior surgery; 60%, adjuvant chemotherapy; and 59%, radiation therapy. Results Based on an intention-to-treat analysis (N = 73), there were five patients with a complete response (6.8%), 16 with a partial response (21.9%), 17 with stable disease (23.3%), and 23 with progressive disease (31.5%) for an RR of 28.7%. Twelve patients (16.4%) were not assessable for response due to toxicity (seven patients, mainly neuropathy), withdrawal of consent (two patients), early death (two patients), or noncompliance (one patient). Median PFS was 6.5 months (range, < 1 to 36.1 months), median survival was 22.8 months (range, < 1 to 36.1 months), and median duration of response was 8.8 months (range, 3.0 to 31.8 months). Patients (n = 72) were evaluated for toxicity. Grade 3 to 4 treatment-related toxicities occurring in more than 5% of patients included neutropenia (22.2%), neuropathy (18.1%), fatigue (6.9%), and leukopenia (5.6%). Conclusion In a unique de-escalating schedule, this study of single-agent paclitaxel produced a response rate similar to other single-agent paclitaxel schedules, in first-line therapy for metastatic breast cancer, published in the literature. However, this schedule is not recommended for the therapy of metastatic breast cancer because of the higher rate of toxicity.


2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 1029-1029
Author(s):  
H. S. Rugo ◽  
M. Campone ◽  
D. Amadori ◽  
A. Wardley ◽  
E. Villa ◽  
...  

1029 Background: Pac/bev is superior to pac alone as first-line therapy for MBC. Ixa/bev has greater preclinical activity than pac/bev in human tumor models. The primary objective of this trial was to evaluate objective response rates (ORR) of ixa/bev given weekly or every 3 weeks relative to pac/bev as 1st line therapy for women with advanced breast cancer. Methods: Women with measurable disease and no prior chemotherapy for advanced breast cancer (locally advanced or MBC) were randomized in a 3:3:2 ratio to Arm A (ixa 16 mg/m2 IV on days 1, 8 & 15 q28 days/ bev 10 mg/kg IV q 2 wks), Arm B (ixa 40 mg/m2 IV q3 wks / bev 15 mg/kg IV q 3 wks) or Arm C (pac 90 mg/m2 IV, schedule/bev as in Arm A). Treatment was continued until disease progression or unacceptable toxicity. Results: Key efficacy and safety results from a pre-planned analysis of all randomized subjects after at least 24 weeks of follow-up are presented. Baseline characteristics were balanced between arms except for liver metastasis. Conclusions: The combination of ixa/bev weekly or q 3 wks demonstrated encouraging clinical activity and safety comparable to 1st line pac/bev in E2100. Final PFS will be provided when data is mature. These results support ongoing clinical trials of ixa given weekly or q 3wk in 1st line MBC, and in combination with bev. [Table: see text] [Table: see text]


2012 ◽  
Vol 134 (1) ◽  
pp. 371-378 ◽  
Author(s):  
A. H. Kamal ◽  
F. Camacho ◽  
R. Anderson ◽  
W. Wei ◽  
R. Balkrishnan ◽  
...  

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