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Navigating Breast Cancer Oligometastasis and Oligoprogression: Current Landscape and Future Directions
Stephanie M Yoon1, Jose G Bazan2
1Department of Radiation Oncology, City of Hope Comprehensive Cancer Center, 1500 E. Duarte Road, Duarte, CA, 91010, USA.
Purpose:
We examine the potential for curative approaches among metastatic breast cancer (MBC) patients by exploring the recent literature on local ablative therapies like surgery and stereotactic body radiation therapy (SBRT) in patients with oligometastatic (OM) breast cancer. We also cover therapies for MBC patients with oligoprogressive (OP) disease.
Key Findings:
Surgery and SBRT have been studied for OM and OP breast cancer, mainly in retrospective or non-randomized trials. While many studies demonstrated favorable results, a cooperative study and single-institution trial found no support for surgery/SBRT in OM and OP cases, respectively.
Conclusion:
While there is interest in applying local therapies to OM and OP breast cancer, the current randomized data does not back the routine use of surgery or SBRT, particularly when considering the potential for treatment-related toxicities. Future research should refine patient selection through advanced imaging and possibly explore these therapies specifically in patients with hormone receptor-positive or HER2-positive disease.
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