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Acta Oncol. 2019 Jan 11:1-6. doi: 10.1080/0284186X.2018.1546061. [Epub ahead of print]

Pattern of endocrine treatment for epithelial ovarian cancer in the Southeast medical region of Sweden: a population-based study.

Author information

1
a Department of Clinical Oncology and Department of Clinical and Experimental Medicine , Linköping University , Linköping , Sweden.
2
b Department of Clinical Sciences, Division of Oncology and Pathology , Lund University and Skåne University Hospital , Lund , Sweden.

Abstract

AIM OF THE STUDY:

Endocrine treatment (ET) is an alternative as salvage therapy in epithelial ovarian cancer (EOC) but the usage in routine care is unknown. We evaluated the treatment patterns and outcome of patients receiving ET for EOC in the Southeast medical region in Sweden.

METHOD:

Patients were identified through the population-based Southeast Quality Registry for gynaecological cancer. Inclusion criteria were: age ≥18 years, histologically verified EOC diagnosed 2000-2013, ET for ≥4 weeks. Coverage compared with the Swedish National Cancer Registry was 100%. Data extracted from medical records was collected by means of a study-specific Case Report Form. Last date of follow-up was February 1st, 2018. All statistics were descriptive.

RESULTS:

Altogether 248 (18%) of 1414 patients were treated with ET. Most (49%) had received only one, and 34% two previous lines of chemotherapy. Time from last chemotherapy to ET was 4 months, range 0-55months. The reason for initiating ET was tumor progression (66%), chemotherapy related toxicity (29%) and maintenance (4%). Tamoxifen was prescribed in 94% of cases. Best response was partial (< 5%) and stable disease (50%). No patient had a complete response. 194 (78%) patients received subsequent chemotherapy, of these 27% had 3-7 lines of chemotherapy. Duration of ET was a median 4 months (range 1-80 months). Median time from ET to subsequent chemotherapy was 5 months (range 0-79). The median overall survival was 45 months (range 9-173).

CONCLUSION:

In the Southeast region of Sweden, endocrine treatment for EOC was prescribed inconsistently and in various settings, usually initiated by a rising CA-125 level. Poorer documentation and irregular tumor response assessment were observed for endocrine treatment compared to chemotherapy.

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