Inoue K, Ninomiya J, Saito T, Kimizuka K, Kurosumi M. Induction therapy with paclitaxel and bevacizumab followed by switch maintenance therapy with eribulin in Japanese patients with HER2-negative metastatic breast cancer: a multicenter, collaborative, open-label, phase II clinical study for the SBCCSG 35 investigators.
BMC Cancer 2018;
18:671. [PMID:
29925345 PMCID:
PMC6011527 DOI:
10.1186/s12885-018-4556-6]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 05/25/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND
To examine the efficacy and safety of induction therapy with paclitaxel and bevacizumab followed by switch maintenance therapy with eribulin (ISMT) in Japanese patients with HER2-negative metastatic breast cancer (MBC).
METHODS
Patients, who had previously undergone a maximum of 2 regimens of chemotherapy, received 3 cycles of induction therapy with paclitaxel (90 mg/m2 intravenously on days 1, 8, and 15 followed by 1-week drug holiday) and bevacizumab (10 mg/kg intravenously after the completion of paclitaxel administration on days 1 and 15). Patients who had complete response, partial response, or stable disease underwent switch maintenance therapy with eribulin (1.4 mg/m2 intravenously on days 1 and 8 followed by 1-week drug holiday). The primary endpoint was time to treatment failure (TTF) for ISMT.
RESULTS
Fifty-one eligible patients (median age: 66 years; range: 35-74) were enrolled: 19 (37.3%) and 32 (62.7%) had stage IV and recurrence, respectively, 42 (82.4%) had visceral metastases, and 45 (88.2%) received eribulin-38 of whom showed disease progression, and 40 (78.4%) underwent post therapy. Median TTF was 9.2 months (95% confidence interval [CI]: 7.3-11.1), median progression-free survival was 10.7 months (95% CI: 9.6-11.8), and median overall survival was 20.0 months (95% CI: 16.0-24.0). Relative dose intensity was 97.7% (range: 33.3-100.0) for induction therapy and was 83.3% (range: 49.3-100.6%) for eribulin maintenance therapy. The most common adverse event was alopecia (51 [100%]) in induction therapy and was peripheral sensory neuropathy (37 [82.2%]) in eribulin maintenance therapy. Eribulin was effective with manageable tolerability.
CONCLUSIONS
ISMT may be a promising therapeutic option for patients with MBC.
TRIAL REGISTRATION
UMIN000015971 . Registration date: January 1, 2015.
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