BRCA1/2 Functional Loss Defines a Targetable Subset in Leiomyosarcoma.

Seligson ND, Kautto EA, Passen EN, Stets C, Toland AE, Millis SZ, Meyer CF, Hays JL, Chen JL
Oncologist in press 12/12/2018

Abstract

BACKGROUND: Soft-tissue sarcomas (STS) describe a heterogeneous group of mesenchymal tumors with limited treatment options. Targeted therapies exist for

MATERIALS AND METHODS: DNA sequencing data were analyzed for HR pathway alterations for 1,236 patients with STS. DNA sequencing data from an additional 1,312 patients were used to confirm the prevalence of HR pathway alterations in LMS. Four uterine LMS (uLMS) patients with functional

RESULTS: In an unselected STS study population,

CONCLUSION: HR pathway alterations are rare in most STS. However, we identify uLMS to be enriched for

IMPLICATIONS FOR PRACTICE: Soft-tissue sarcomas are a highly morbid, diverse set of tumors with limited treatment options. This study identifies an increased prevalence of functional

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