RT Journal Article SR Electronic T1 International radical trachelectomy assessment: IRTA study JF International Journal of Gynecologic Cancer JO Int J Gynecol Cancer FD BMJ Publishing Group Ltd SP 635 OP 638 DO 10.1136/ijgc-2019-000273 VO 29 IS 3 A1 Salvo, Gloria A1 Ramirez, Pedro T A1 Leitao, Mario A1 Cibula, David A1 Fotopoulou, Christina A1 Kucukmetin, Ali A1 Rendon, Gabriel A1 Perrotta, Myriam A1 Ribeiro, Reitan A1 Vieira, Marcelo A1 Baiocchi, Glauco A1 Falconer, Henrik A1 Persson, Jan A1 Wu, Xiaohua A1 Căpilna, Mihai Emil A1 Ioanid, Nicolae A1 Mosgaard, Berit Jul A1 Berlev, Igor A1 Kaidarova, Dilyara A1 Olawaiye, Alexander Babatunde A1 Liu, Kaijiang A1 Nobre, Silvana Pedra A1 Kocian, Roman A1 Saso, Srdjan A1 Rundle, Stuart A1 Noll, Florencia A1 Tsunoda, Audrey Tieko A1 Palsdottir, Kolbrun A1 Li, Xiaoqi A1 Ulrikh, Elena A1 Hu, Zhijun A1 Pareja, Rene YR 2019 UL http://ijgc.bmj.com/content/29/3/635.abstract AB Background Radical trachelectomy is considered a viable option for fertility preservation in patients with low-risk, early-stage cervical cancer. Standard approaches include laparotomy or minimally invasive surgery when performing radical trachelectomy.Primary Objective To compare disease-free survival between patients with FIGO (2009) stage IA2 or IB1 (≤2cm) cervical cancer who underwent open versus minimally invasive (laparoscopic or robotic) radical trachelectomy.Study Hypothesis We hypothesize that minimally invasive radical trachelectomy has similar oncologic outcomes to those of the open approach.Study Design This is a collaborative, multi-institutional, international, retrospective study. Patients who underwent a radical trachelectomy and lymphadenectomy between January 1, 2005 and December 31, 2017 will be included. Institutional review board approval will be required. Each institution will be provided access to a study-specific REDCap (Research Electronic Data Capture) database maintained by MD Anderson Cancer Center and will be responsible for entering patient data.Inclusion Criteria Patients with squamous, adenocarcinoma, or adenosquamous cervical cancer FIGO (2009) stages IA2 and IB1 (≤2 cm) will be included. Surgery performed by the open approach or minimally invasive approach (laparoscopy or robotics). Tumor size ≤2 cm, by physical examination, ultrasound, MRI, CT, or positron emission tomography (at least one should confirm a tumor size ≤2 cm). Centers must contribute at least 15 cases of radical trachelectomy (open, minimally invasive, or both).Exclusion Criteria Prior neoadjuvant chemotherapy or radiotherapy to the pelvis for cervical cancer at any time, prior lymphadenectomy, or pelvic retroperitoneal surgery, pregnant patients, aborted trachelectomy (intra-operative conversion to radical hysterectomy), or vaginal approach.Primary Endpoint The primary endpoint is disease-free survival measured as the time from surgery until recurrence or death due to disease. To evaluate the primary objective, we will compare disease-free survival among patients with FIGO (2009) stage IA2 or IB1 (≤2cm) cervical cancer who underwent open versus minimally invasive radical trachelectomy.Sample Size An estimated 535 patients will be included; 256 open and 279 minimally invasive radical trachelectomy. Previous studies have shown that recurrence rates in the open group range from 3.8% to 7.6%. Assuming that the 4.5-year disease-free survival rate for patients who underwent open surgery is 95.0%, we have 80% power to detect a 0.44 HR using α level 0.10. This corresponds to an 89.0% disease-free survival rate at 4.5 years in the minimally invasive group.