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Patient Management with Eribulin in Metastatic Breast Cancer: A Clinical Practice Guide.

ABSTRACT: Eribulin, an antimicrotubule chemotherapeutic agent, is approved for the treatment of pretreated metastatic breast cancer (mBC) based on the positive outcomes of phase II and phase III clinical trials, which enrolled mainly Western patients. Eribulin has recently been approved in an increasing number of Asian countries; however, there is limited clinical experience in using the drug in certain countries. Therefore, we established an Asian working group to provide practical guidance for eribulin use based on our clinical experience. This paper summarizes the key clinical trials, and the management recommendations for the reported adverse events (AEs) of eribulin in mBC treatment, with an emphasis on those that are relevant to Asian patients, followed by further elaboration of our eribulin clinical experience. It is anticipated that this clinical practice guide will improve the management of AEs resulting from eribulin treatment, which will ensure that patients receive the maximum treatment benefit.

SUBMITTER: Ro J

PROVIDER: S-EPMC4822111 | biostudies-literature | 2016 Mar

REPOSITORIES: biostudies-literature

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Patient Management with Eribulin in Metastatic Breast Cancer: A Clinical Practice Guide.

Ro Jungsil J Cheng Fiona Tsui-Fen FT Sriuranpong Virote V Villalon Antonio A Smruti B K BK Tsang Janice J Yap Yoon Sim YS

Journal of breast cancer 20160325 1

Eribulin, an antimicrotubule chemotherapeutic agent, is approved for the treatment of pretreated metastatic breast cancer (mBC) based on the positive outcomes of phase II and phase III clinical trials, which enrolled mainly Western patients. Eribulin has recently been approved in an increasing number of Asian countries; however, there is limited clinical experience in using the drug in certain countries. Therefore, we established an Asian working group to provide practical guidance for eribulin ...[more]

PMID: 27066091

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Project description:BACKGROUND:Alteration of the PI3K/AKT/mTOR pathway is a common genomic abnormality detected in triple-negative breast cancer (TNBC). Everolimus acts synergistically with eribulin in TNBC cell lines and xenograft models. This phase I trial was designed to test the safety and tolerability of combining eribulin and everolimus in patients with metastatic TNBC. METHODS:The primary objective of this study was to evaluate the safety and toxicities of the combination. Patients with metastatic TNBC who had up to four lines of prior chemotherapies were enrolled. The combination of eribulin and everolimus was tested using three dosing levels: A1 (everolimus 5?mg daily; eribulin 1.4?mg/m2?days 1 and 8 every 3 weeks), A2 (everolimus 7.5?mg daily; eribulin 1.4?mg/m2, days 1 and 8 every 3 weeks), and B1 (everolimus 5?mg daily; eribulin 1.1?mg/m2?days 1 and 8 every 3 weeks). RESULTS:Twenty-seven patients with median age 55?years were enrolled. Among 8 evaluable patients who received dose level A1, 4 had dose-limiting toxicities (DLTs). Among 3 evaluable patients treated with dose level A2, 2 had DLTs. Among 12 evaluable patients who received dose level B1, 4 had DLTs. The DLTs were neutropenia, stomatitis, and hyperglycemia. Over the study period, 59% had a ??grade 3 toxicity, 44% had ??grade 3 hematologic toxicities, and 22% had grade 4 hematologic toxicities. The most common hematological toxicities were neutropenia, leukopenia, and lymphopenia. Thirty-three percent had grade 3 non-hematologic toxicities. The most common non-hematological toxicities were stomatitis, hyperglycemia, and fatigue. The median number of cycles completed was 4 (range 0-8). Among 25 eligible patients, 9 patients (36%) achieved the best response as partial response, 9 (36%) had stable disease, and 7 (28%) had progression. The median time to progression was 2.6?months (95% CI [2.1, 4.0]), and median overall survival (OS) was 8.3?months (95% CI [5.5, undefined]). CONCLUSION:Eribulin 1.1?mg/m2?days 1 and 8 every 3 weeks with everolimus 5?mg daily was defined as the highest dose with acceptable toxicity (RP2D). The combination is safe, and efficacy is modest. A post hoc analysis showed that participants that used dexamethasone mouthwash stayed on treatment for one additional cycle. TRIAL REGISTRATION:ClinicalTrials.gov, NCT02120469. Registered 18 April 2014.

Dataset Information

Patient Management with Eribulin in Metastatic Breast Cancer: A Clinical Practice Guide.

Publications

Patient Management with Eribulin in Metastatic Breast Cancer: A Clinical Practice Guide.

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