Objectives: To assess the efficacy and tolerability of gemcitabine and paclitaxel as first-line treatment in advanced breast cancer. Methods: Patients with histologically confirmed metastatic or metastatic plus locally advanced breast cancer received gemcitabine 1,200 mg/m2 on days 1 and 8 and paclitaxel 175 mg/m2 on day 1 every 21 days for 8 cycles. Results: From December 1999 to August 2001, 45 patients, with a median age of 53.5 years (range, 22–77), received a total of 260 cycles. All were assessable for response and toxicity. Twenty-seven patients had prior adjuvant therapy. Hormonal receptor status was positive in 31.1% and negative in 40.0% of patients. Main metastatic sites included soft tissue (62.2%) and lung (53.3%). The objective response rate was 66.7%; complete response, 22.2%; partial response, 44.4%; stable disease, 15.6%; progressive disease, 17.8%. Median duration of response was 18 months and median time to tumor progression was 11 months. Grade 3/4 leukopenia, neutropenia, and thrombocytopenia developed in 13.3% of patients, and 15.5% developed grade 3/4 mucositis. No treatment-related deaths occurred. Median overall survival was 19 months. Conclusion: Gemcitabine plus paclitaxel is an active combination with a favorable toxicity profile as first-line treatment for patients with advanced breast cancer.
Adriamycin (ADM) is an effective antineoplastic drug. However, the amount of ADM that can be administered must be limited because of the risk of developing a severe dose-dependent cardiomyopathy. 4'Epi-adriamycin (4'ADM) is a new anthracycline analog with similar antineoplastic properties as ADM, but with perhaps less cardiac toxicity. To determine myocardial performance after a chronic treatment with 4'ADM, we studied 17 patients (mean age 36.6 years) suffering from lymphomas by means of 24-hour ambulatory ECG, x-ray, M-mode echocardiogram, and rest-exercise gated radionuclide ventriculography (RNV), performed prior to and 2 months after the end of the treatment. Pretreatment and post-treatment shortening fractions, basal pretreatment and post-treatment ejection fractions, and postexercise pretreatment and post-treatment ejection fractions, were tested for correlation with individual 4'ADM doses and pretreatment with ADM. No association was noted among them, showing the lack of correlation between doses and impairment of ventricular performance. 4'ADM doses ranged from 400 to 1100, x 748 +/- 174 mg/m2; all noninvasive studies including RNV were normal. No correlation was found between 4'ADM doses and RNV (Pearson's correlation coefficient, p = ns). No deterioration of ventricular performance could be demonstrated. Conversely, the basal pretreatment ejection fraction changed from 56.17 +/- 7.6% to 61.52 +/- 8.3% in post-treatment (p less than 0.0001). Surprisingly, the post-exercise pretreatment ejection fraction also increased from 55.47 +/- 7.7% to 63.35 +/- 10% in post-treatment (p less than 0.03). The shortening fraction changed from 35.47 +/- 4.8% to 36.47 +/- 4.2% after 4'ADM treatment (ns). No impairment of cardiac function could be shown in patients previously treated with ADM or radiotherapy.(ABSTRACT TRUNCATED AT 250 WORDS)
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