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Clinical trial

A Multicenter Trial Assessing the Efficacy and Safety of tamOxifen Plus LY2228820 in Advanced or Metastatic Breast Cancer Progressing on aromatasE Inhibitors (OLYMPE)

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Last updated:12th Dec 2014

Metastatic breast cancer (MBC) remains an incurable disease and despite an improvement of the effect of systemic treatments. After relapse on first-line non-steroidal aromatase inhibitor, current clinical practice and treatment guidelines include tamoxifen, fulvestrant (an ER antagonist) and exemestane as available options (NCCN treatment guidelines 2012), but in this context of resistance, their efficacy are poor.

Some results confirm the possibility to improve the efficacy of tamoxifen in metastatic setting by a combination with therapy targeting signal transduction pathways. Other transduction pathways seem to be involved in endocrine sensitivity/resistance, such as RAS/RAF/MEK/MAK pathway.

LY2228820 inhibits the activity of p38 MAPK (selective inhibitor of the α and β isoforms of p38 MAPK in vitro) and reduces phosphorylation of its cellular target, MAPK-activated protein kinase 2 (MAPKAP-K2).

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Study start date 2014-12-12

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