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. 2012 Oct;127(1):32-7.
doi: 10.1016/j.ygyno.2012.06.026. Epub 2012 Jun 24.

Combined chemotherapy and radiation improves survival for node-positive endometrial cancer

Larissa J Lee  1 , Akila N Viswanathan
Affiliations

Combined chemotherapy and radiation improves survival for node-positive endometrial cancer

Larissa J Lee et al. Gynecol Oncol. 2012 Oct.

Abstract

Objective: To evaluate the clinical outcomes for women with node-positive endometrioid adenocarcinoma of the uterus

Methods: Records were reviewed for 66 patients with Stage IIIC endometrioid adenocarcinoma diagnosed between 1/1995 and 12/2009. Study inclusion required TAH, BSO and negative chest imaging. Papillary serous and clear cell histologies were excluded. Adjuvant treatment was external beam radiation (RT) alone in 18 patients (27%), combined chemotherapy and RT in 44 (67%), chemotherapy alone in 1 (2%), and no adjuvant therapy in 3 (5%). The median follow-up was 48 months.

Results: Of 66 patients, 56 (85%) had positive pelvic nodes only, 5 (8%) had positive para-aortic nodes only, and 5 (8%) had both. Of the 62 patients who received adjuvant RT, only 4 (6%) had an in-field recurrence, including 2 with residual disease after surgery. Disease-free (DFS) and overall (OS) survival rates at 5 years were 71% and 81%, respectively. By adjuvant treatment modality, 5-year DFS and OS rates were 63% and 67% for RT alone and 79% and 90% for combined modality therapy (p=0.15 and p<0.01). On multivariate analysis, combined modality therapy significantly improved DFS (HR 0.12, 95% CI 0.03-0.49, p<0.01) and OS (HR 0.20, 95% CI 0.05-0.75, p=0.02) compared to adjuvant RT alone.

Conclusions: Compared to RT alone, combined modality therapy decreased recurrence and improved survival in patients with node-positive endometrioid adenocarcinoma of the uterus. In addition, external beam RT resulted in excellent local and regional control. Future studies are needed to define the optimal chemotherapy regimen, sequencing, and radiation fields.

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Conflict of interest statement

Conflicts of Interest Notification: None of the authors has financial interests to disclose.

Figures

Figure 1
Figure 1
DFS by tumor grade
Figure 2
Figure 2
(A) DFS and (B) OS for combined chemotherapy and radiotherapy (chemoRT) and radiotherapy alone (RT)
Figure 2
Figure 2
(A) DFS and (B) OS for combined chemotherapy and radiotherapy (chemoRT) and radiotherapy alone (RT)
See this image and copyright information in PMC

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