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Publications (3)39.96 Total impact

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    ABSTRACT: This open-label phase II study assessed the efficacy and tolerability of eribulin, a non-taxane microtubule dynamics inhibitor with novel mechanism of action, as monotherapy in patients who have advanced non-small-cell lung cancer (NSCLC). Enrolled patients had progressed during or after platinum-based doublet chemotherapy. Initially, two patient cohorts (taxane-pre-treated and taxane-naïve) received eribulin mesylate (1.4 mg/m(2)) as a 2- to 5-minute intravenous infusion on days 1, 8, and 15 of a 28-day cycle. To assess tolerability of a second dosing schedule, a cohort of taxane-pre-treated patients received eribulin on days 1 and 8 of a 21-day cycle. The primary endpoint was objective response rate (ORR) evaluated using Response Evaluation Criteria in Solid Tumors (RECIST) by independent radiographic review. One hundred three patients received eribulin. The ORR was 9.7% (all partial responses [PR]). Overall disease control rate (PR + stable disease) was 55.3%. Median duration of response, progression-free survival, and overall survival were 5.8, 3.4, and 9.4 months, respectively. The most common drug-related adverse events were neutropenia (54%; 49% grade 3/4); fatigue (49%; 11% grade 3, no grade 4); nausea (38%; 1% grade 3, no grade 4); alopecia (32%); anemia (29%, 4% grade 3/4) and neuropathy (23%; 2% grade 3, no grade 4). The 28-day schedule was associated with many dose delays, interruptions, or omissions due to neutropenia (day 15). The 21-day cycle was well-tolerated. Eribulin monotherapy administered on days 1 and 8 of a 21-day cycle is active and tolerated as second- or later-line chemotherapy for NSCLC.
    No preview · Article · Aug 2011 · Clinical Lung Cancer
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    ABSTRACT: The activity and safety of eribulin mesylate (E7389), a nontaxane microtubule dynamics inhibitor with a novel mechanism of action, were evaluated in patients with locally advanced or metastatic breast cancer previously treated with an anthracycline, taxane, and capecitabine. Eligible patients in this single-arm, open-label phase II study received eribulin mesylate (1.4 mg/m(2)) administered as a 2- to 5-minute intravenous infusion on days 1 and 8 of a 21-day cycle. The primary end point was objective response rate (ORR) assessed by independent review. Of 299 enrolled patients who had received a median of four prior chemotherapy regimens, 291 received eribulin (for a median of four cycles). Of these, 269 patients met key inclusion criteria for the primary efficacy analysis. The primary end point of ORR by independent review was 9.3% (95% CI, 6.1% to 13.4%; all partial responses [PRs]), the stable disease (SD) rate was 46.5%, and clinical benefit rate (complete response + PR + SD > or = 6 months) was 17.1%. The investigator-reported ORR was 14.1% (95% CI, 10.2% to 18.9%). Median duration of response was 4.1 months, and progression-free survival was 2.6 months. Median overall survival was 10.4 months. The most common treatment-related grade 3 or 4 toxicities were neutropenia (54%; febrile neutropenia, 5.5%), leukopenia (14%), and asthenia/fatigue (10%; no grade 4); grade 3 neuropathy occurred in 6.9% of patients (no grade 4). Eribulin demonstrated antitumor activity in extensively pretreated patients who had previously received an anthracycline, taxane, and capecitabine, with a manageable tolerability profile.
    Full-text · Article · Sep 2010 · Journal of Clinical Oncology
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    ABSTRACT: Eribulin mesylate (E7389), a nontaxane microtubule dynamics inhibitor, is a structurally simplified, synthetic analog of the marine natural product halichondrin B. This open-label, single-arm, phase II study evaluated efficacy and tolerability of eribulin in heavily pretreated patients with metastatic breast cancer (MBC). MBC patients who were previously treated with an anthracycline and a taxane received eribulin mesylate (1.4 mg/m(2)) as a 2- to 5-minute intravenous (IV) infusion on days 1, 8, and 15 of a 28-day cycle. Because of neutropenia (at day 15), an alternative regimen of eribulin on days 1 and 8 of a 21-day cycle was administered. The primary end point was overall response rate. Of the 103 patients treated, the median number of prior chemotherapy regimens was four (range, one to 11 regimens). In the per-protocol population (n = 87), eribulin achieved an independently reviewed objective response rate (all partial responses [PRs]) of 11.5% (95% CI, 5.7 to 20.1) and a clinical benefit rate (PR plus stable disease > or = 6 months) of 17.2% (95% CI, 10.0 to 26.8). The median duration of response was 171 days (5.6 months; range, 44 to 363 days), the median progression-free survival was 79 days (2.6 months; range, 1 to 453 days), and the median overall survival was 275 days (9.0 months; range, 15 to 826 days). The most common drug-related grades 3 to 4 toxicities were as follows: neutropenia, 64%; leukopenia, 18%; fatigue, 5%; peripheral neuropathy, 5%; and febrile neutropenia, 4%. Eribulin demonstrated activity with manageable tolerability (including infrequent grade 3 and no grade 4 neuropathy) in heavily pretreated patients with MBC when dosed as a short IV infusion on days 1 and 8 of a 21-day cycle.
    Full-text · Article · Apr 2009 · Journal of Clinical Oncology