Metastatic Thymoma Harboring a Deleterious BRCA2 Mutation Derives Durable Clinical Benefit from Olaparib.
Oncologist
; 25(4): 301-305, 2020 04.
Article
en En
| MEDLINE
| ID: mdl-32297440
Thymomas comprise a group of rare epithelial neoplasms of the anterior mediastinum. Whereas localized disease carries a favorable prognosis, the majority of patients with metastatic thymomas experience progression or recurrence over a 10-year period. Although targeted therapies have become standard of care in many malignancies, no clinically actionable mutations have consistently been identified in metastatic thymomas. Here, we describe a patient with an aggressive thymoma complicated by extensive pleural metastases. Over a 16-year period, she progressed on multiple treatment regimens. To identify additional treatment options, tissue from a pleural metastasis was sent for next-generation sequencing, revealing mutations in BRCA2, tyrosine kinase 2, and SET domain containing 2. Based on supporting evidence for poly (ADP-ribose) polymerase (PARP) inhibition in other BRCA-mutated tumors, the patient was started on the PARP inhibitor olaparib. She derived significant clinical benefit from treatment, with imaging showing overall stabilization of her disease. Here, we review the genotyping results of her tumor and discuss the functional and clinical significance of the mutations in her cancer as well as implications for managing patients with advanced BRCA-mutant thymomas. KEY POINTS: Targeted therapy has yet to enter the standard clinical management of metastatic thymomas. Patients with BRCA2-mutant thymomas may benefit from poly (ADP-ribose) polymerase inhibition.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Neoplasias Ováricas
/
Timoma
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Neoplasias del Timo
Límite:
Female
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Humans
Idioma:
En
Revista:
Oncologist
Asunto de la revista:
NEOPLASIAS
Año:
2020
Tipo del documento:
Article
País de afiliación:
Estados Unidos