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Updated: Jan 16, 2026

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Murine Model for Non-invasive Imaging to Detect and Monitor Ovarian Cancer Recurrence
Published on: November 2, 2014
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Cure of Recurrent Ovarian Cancer: A Multicenter Retrospective Study
Masahiro Sumitomo1,2, Yasushi Kotani1, Kosuke Murakami1
1Department of Obstetrics and Gynecology, Kindai University Faculty of Medicine, Osakasayama 589-8511, Japan.
Cancers
|September 27, 2025
Summary
Approximately 10% of recurrent ovarian cancer patients achieve a 4-year disease-free survival (DFS) and are considered cured. Characteristics of cured cases and criteria for cure were identified in this study.
Area of Science:
- Oncology
- Gynecologic Oncology
- Cancer Research
Background:
- Recurrent ovarian cancer has a poor prognosis, with limited curative potential.
- Identifying criteria for cure and characteristics of cured patients is crucial.
Purpose of the Study:
- To define criteria for cure in recurrent ovarian cancer.
- To identify patient and tumor characteristics associated with cure.
Main Methods:
- Analysis of recurrent ovarian cancer cases from university and community hospitals.
- Assessment of complete remission (CR) and no evidence of disease (NED) status.
- Inclusion of BRCA1/2 mutation analysis in tumor samples.
Main Results:
- 13% of recurrent cases achieved no evidence of disease (NED).
- Cured cases (NED) showed lower initial ascites, longer disease-free survival (DFS), solitary lesions, and higher rates of secondary debulking surgery.
- A 4-year DFS was established as a criterion for cure in complete remission (CR) cases.
- BRCA pathogenic variants were found in 5/11 high-grade serous carcinoma (HGSC) cases achieving 4-year DFS.
Conclusions:
- Around 10% of recurrent ovarian cancer patients achieve a 4-year DFS, indicating a high likelihood of cure.
- Cure in non-HGSC cases was independent of pathogenic BRCA variants.
- This study provides insights into the curability and prognostic factors in recurrent ovarian cancer.
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