Abstract
5518 Background: There is currently no consensus regarding the management of advanced stage uterine MMT. In an effort to better define postoperative treatment modalities and their associated outcomes, we retrospectively reviewed factors that influence progression and survival. Methods: A retrospective, multi-institution study of women diagnosed from 1997–2007 was performed. Post-operative treatment included either observation (OBS), RT (brachytherapy, whole pelvic, or combination), chemotherapy (CT) alone or with RT (CT+RT). The majority of chemotherapy regimens included carboplatinum/paclitaxel, Ifosfamide/cisplatin, cisplatin/adriamycin, Data collected included time to recurrence, overall survival and sites of recurrence. Statistics included t-test, ANOVA and Kaplan Meier. Results: 119 patients were identified with late stage uterine MMT. 81 had stage III disease and 38 had stage IV disease. The median age at diagnosis was 67 years (range: 30–86). 70 (59%) were Caucasian and 48 (40%) were African-American. 116 (87%) were optimally debulked and their survival further analyzed. 18 (15%) were observed and 9 of these patients recurred. This group had the poorest median progression free survival (PFS) of 3.4 months. The majority (N = 50, 49%) of late stage patients underwent adjuvant CT with a median PFS of 13.3 months and median OS of 15.6 months. Of these patients 33 (66%) recurred. 18 (17 %) patients underwent RT alone with a median PFS of 12.4 months and OS of 14.9 months. 14 (78%) of these patients recurred. 20 patients (19%) underwent a combination of CT and RT and 11 (55%) experienced recurrences . The combination therapy group had the longest median PFS of 14.3 months and OS of 17.2 months (p = 0.27). Conclusions: Chemotherapy had become the standard therapy for advanced stage MMT however the addition of radiation has not been established. Patients diagnosed with advanced stage MMT can achieve long-term DFS in a minority of patients (33%) treated with chemotherapy. We showed that the addition of radiation to adjuvant chemotherapy showed a slight improvement over chemotherapy alone yet the optimal therapy has yet to be defined. This retrospective review highlights the need for prospective trials of new therapeutic agents and treatment regimens for women with advanced stage uterine MMT. No significant financial relationships to disclose.
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