期刊
ANNALS OF ONCOLOGY
卷 23, 期 3, 页码 625-631出版社
ELSEVIER
DOI: 10.1093/annonc/mdr278
关键词
breast cancer; chemotherapy; estrogen receptor-positive; Oncotype DX; Recurrences Score
类别
资金
- Plan Nacional de Investigacion Cientifica, Desarrollo e Innovacion Tecnologica [RD06/0020/0109, RD06/0020/0080, RD06/002/002]
- ISCIII/FEDER-Subdireccion General de Evaluacion y Fomento de la Investigacion [PS09/01285, PS09/01700, PS09/01296 FIS PI04417, FIS PI082031, CIT-090000-2008-010]
- DIUE Generalitat de Catalunya
- Instituto de Salud Carlos III FEDER [RD09/0076/00036, RD09/0076/00101]
- Pla Director d'Oncologia de Catalunya (XBTC)
- [PN de I + D + I 2008-20011]
Background: This study examined the impact of the Recurrence Score (RS) in Spanish breast cancer patients and explored the associations between clinicopathological markers and likelihood of change in treatment recommendations. Patients and methods: Enrollment was offered consecutively to eligible women with estrogen receptor-positive; human epidermal growth factor receptor 2-negative, node-negative breast cancer. Oncologists recorded treatment recommendation and confidence in it before and after knowing the patient's RS. Results: Treatment recommendation changed in 32% of 107 patients enrolled: in 21% from chemohormonal (CHT) to hormonal therapy (HT) and in 11% from HT to CHT. RS was associated with the likelihood of change from HT to CHT (P < 0.001) and from CHT to HT (P < 0.001). Confidence of oncologists in treatment recommendations increased for 60% of cases. Higher tumor grade (P = 0.007) and a high proliferative index (Ki-67) (P = 0.023) were significantly associated with a greater chance of changing from HT to CHT, while positive progesterone receptor status (P = 0.002) with a greater probability of changing from CHT to HT. Conclusions: Results from the first prospective European study are consistent with published experience and use of the RS as proposed in European clinical practice guidelines and provide evidence on how Oncotype DX and clinicopathological factors are complementary and patient selection may be improved.
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