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- W2275647800 abstract "1063 Background: Less than 10% of breast cancer patients are diagnosed with metastatic disease upon initial diagnosis. Once metastases are detected, median survival ranges between 18 and 24 months. Many new chemotherapy agents, hormonal therapy, monoclonal antibodies and supportive care options were presented during the last decade. Although a few randomized trials have demonstrated improvement in survival for various agents, it has not been clear whether the overall survival of these patients has improved. In this study, we analyzed the survival of patients diagnosed with metastatic breast cancer in during the 1990’s Methods: We have analyzed 874 patients diagnosed with breast cancer at our Institute in the years 1991–1994 and 1102 patients in 1996–1999. Tumor characteristics, treatments, and the outcomes of these patients were compared. We used Kaplan-Meier, Wilcoxon test and Cox proportional hazard in order to investigate variants between the 2 groups. Results: After excluding all women with no evidence of metastatic disease at diagnosis, we analyzed 96 patients. No major difference in tumor characteristics was found between the group of patients diagnosed in the early 1990’s and the group diagnosed in the late 1990’s. We found a significant relationship between the period of diagnosis of metastatic breast cancer and survival: median survival was 19 months for the first group and 35 months for the second group (p=0.0398, 95% C.I), with 5-year overall survival rates 8% for patients diagnosed in the early 1990’s and 25% for patients diagnosed in the late 1990’s, p=0.0497. Two years survival was 25% and 60% respectively, although insignificant, p = 0.0941. Although there was no significant difference in number of chemotherapy courses given in the 2 groups, many more new generation treatments were used for the late 90 th group. The Hazard of death within 5 years for patients treated with at least one new generation protocol was 0.53, p= 0.004. Conclusions: This study suggests that there has been significant survival improvement in breast cancer patients diagnosed with synchronous metastasis during the second half of the 1990’s. This improvement can be explained by the introduction of new treatments agents and strategies during the last decade No significant financial relationships to disclose." @default.
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- W2275647800 date "2007-06-20" @default.
- W2275647800 modified "2023-10-17" @default.
- W2275647800 title "Improvement in survival of breast cancer patients with synchronous metastases" @default.
- W2275647800 doi "https://doi.org/10.1200/jco.2007.25.18_suppl.1063" @default.
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