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Evolving approaches to metastatic breast cancer patients pre-treated with anthracycline and taxane.

ABSTRACT: Metastatic breast cancer is currently incurable and the goals of therapy focus on prolonging survival and maintaining quality of life by controlling symptoms and minimizing toxicity. Treatments for metastatic breast cancer include chemotherapeutic agents from various classes, such as taxanes, vinca alkaloids, anthracyclines and antimetabolites. This review provides an overview of chemotherapeutic agents for the treatment of metastatic breast cancer patients previously treated with anthracyclines and taxanes, focusing on a clinical evaluation of eribulin, the most recently approved agent for the treatment of metastatic breast cancer. Eribulin is a synthetic derivative of halichondrin B, a tumour growth inhibitor found in marine sponges, which prevents microtubule growth and sequesters the tubulin molecules into unusual aggregates, initiating apoptosis. Studies of eribulin have shown that the drug is effective in the treatment of previously treated metastatic breast cancer, and has an acceptable toxicity profile. Importantly, in the phase III EMBRACE study, eribulin treatment resulted in a survival advantage, a difficult endpoint to achieve with a single chemotherapeutic agent. An additional phase III study showed that eribulin has similar efficacy to capecitabine in women treated with no more than three prior therapies. Furthermore, pre-specified exploratory analyses suggest that particular patient subgroups may have greater therapeutic benefit with eribulin and may warrant further study to explore the potential mechanisms.

SUBMITTER: Saji S

PROVIDER: S-EPMC3775160 | biostudies-literature | 2013 Oct

REPOSITORIES: biostudies-literature

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Evolving approaches to metastatic breast cancer patients pre-treated with anthracycline and taxane.

Saji Shigehira S

BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy 20131001 5

Metastatic breast cancer is currently incurable and the goals of therapy focus on prolonging survival and maintaining quality of life by controlling symptoms and minimizing toxicity. Treatments for metastatic breast cancer include chemotherapeutic agents from various classes, such as taxanes, vinca alkaloids, anthracyclines and antimetabolites. This review provides an overview of chemotherapeutic agents for the treatment of metastatic breast cancer patients previously treated with anthracyclines ...[more]

PMID: 23658121

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Project description:PurposeTo compare the efficacy and safety between pyrotinib (Pyr) and trastuzumab emtansine (T-DM1) in pre-treated human epidermal growth factor receptor 2-positive (HER2+) metastatic breast cancer (MBC) patients.MethodsA comprehensive literature search of the PubMed, EMBASE, and Web of Science was performed in August 2020. Randomized clinical trials comparing the efficacy and safety between different anti-HER2 regimens in patients pre-treated with trastuzumab (Tra) and a taxane in metastatic settings (≤second-line treatment) were included. A fixed effects network meta-analysis based on the Bayesian inferential framework was conducted for progression-free survival (PFS), overall survival (OS), overall response rate (ORR), and grade ≥3 adverse events (AEs). Values of surface under cumulative ranking probability curve (SUCRA) were calculated to offer a ranking of all regimens.ResultsTwelve studies with 4,353 subjects were identified. Nine regimens were included into the network: T-DM1, lapatinib-capecitabine (Lap-Cap), Tra-Cap, Cap, neratinib (Ner), pertuzumab (Per)-Tra-Cap, Pyr-Cap, atezolizumab (Ate)-T-DM1, and Ner-Cap. For PFS, Pyr-Cap was more favorable than T-DM1 (hazard ratio, 95% confidence interval: 0.77, 0.70-0.86), Lap-Cap (0.64, 0.59-0.69), Tra-Cap (0.63, 0.56-0.70), Cap (0.50, 0.45-0.56), Ner (0.59, 0.51-0.69), Per-Tra-Cap (0.68, 0.59-0.79), and Ner-Cap (0.72, 0.64-0.81). For OS, Pyr-Cap showed further improvement than Lap-Cap (hazard ratio, 95% confidence interval: 0.71, 0.52-0.99), Cap (0.68, 0.49-0.96), and Ner (0.65, 0.45-0.94). For ORR, Pyr-Cap was significantly superior than Cap (odds ratio, 95% confidence interval: 7.87, 1.22-56.51). No significant difference was observed in grade ≥3 AEs among all the regimens. Pyr-Cap ranked in the highest in PFS, OS, ORR, and grade ≥3 AEs (SUCRA = 99.4, 89.7, 86.4, and 89.3%).ConclusionsThese results indicate that Pyr may be more effective than T-DM1 in HER2+ MBC patients pre-treated with Tra and a taxane. However, it may be associated with more grade ≥3 AEs.

Dataset Information

Evolving approaches to metastatic breast cancer patients pre-treated with anthracycline and taxane.

Publications

Evolving approaches to metastatic breast cancer patients pre-treated with anthracycline and taxane.

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