RT Journal Article SR Electronic T1 Adjuvant Chemotherapy and Vaginal Vault Brachytherapy With or Without Pelvic Radiotherapy for Stage 1 Papillary Serous or Clear Cell Endometrial Cancer JF International Journal of Gynecologic Cancer JO Int J Gynecol Cancer FD BMJ Publishing Group Ltd SP 301 OP 306 DO 10.1097/IGC.0000000000000611 VO 26 IS 2 A1 Audrey Tétreault-Laflamme A1 Thu Van Nguyen-Huynh A1 Jean-François Carrier A1 Vanessa Samouëlian A1 Philippe Sauthier A1 Marie-Claude Beauchemin A1 Maroie Barkati YR 2016 UL http://ijgc.bmj.com/content/26/2/301.abstract AB Objective The aim of this study was to assess and compare adjuvant chemotherapy followed by either high–dose-rate vaginal vault brachytherapy (VBT) alone or combined with pelvic external beam radiotherapy (EBRT) for International Federation of Gynaecology and Obstetrics stage 1 serous or clear cell (CC) endometrial cancer.Methods Between 2006 and 2012, 84 women with stage 1 serous or CC endometrial cancer were evaluated postoperatively for adjuvant treatment at our hospital. More than 80% of patients had pelvic lymphadenectomy. Patients declining or not completing adjuvant treatments were excluded. Twenty-five women received 4 to 6 cycles of carboplatin/paclitaxel followed by EBRT and VBT. Thirty-two women received 6 cycles of carboplatin/paclitaxel followed by VBT. Locoregional control and toxicities were assessed during follow-up.Results The 3-year disease-free survival and overall survival rates for the VBT group compared with the EBRT + VBT group were 88% versus 84%, P = 0.6, and 100% versus 94%, P = 0.6, respectively. Only 1 patient in the EBRT + VBT group developed a distant recurrence. One patient had grade 3 toxicity (chronic gastrointestinal [GI] toxicity) in the EBRT + VBT group. Acute grade 1-to-2 GI and grade 1 genitourinary (GU) toxicities were less frequent in the VBT group compared with the EBRT + VBT group (P = 0.008 and P = 0.019, respectively). Late GI and GU toxicities were comparable. Grade 1 vaginal toxicity was similar in both groups. No acute or late grade 2 GU or vaginal toxicities were reported.Conclusions According to this study, VBT alone seems to be as effective as EBRT and VBT for stage 1 serous and CC endometrial cancer treated with surgery and adjuvant chemotherapy. Furthermore, less acute GI and GU toxicities were seen in the VBT group.