Spots Global Cancer Trial Database for Sentinel Node Biopsy in Endometrial Cancer

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Trial Identification

Brief Title: Sentinel Node Biopsy in Endometrial Cancer

Official Title: A Phase III Randomised Clinical Trial Comparing Sentinel Node Biopsy With No Retroperitoneal Node Dissection in Apparent Early-Stage Endometrial Cancer

Study ID: NCT04073706

Conditions

Endometrial Cancer Stage I

Sentinel Lymph Node

Surgery

Interventions

TH BSO with SNB Note: If participants (≤45yo), Grade 1 endometrial adenocarcinoma with myometrial invasion <50%, wish to retain their ovaries a BSO may be omitted

TH BSO without retroperitoneal node dissection Note: If participants (≤45yo), Grade 1 endometrial adenocarcinoma with myometrial invasion <50%, wish to retain their ovaries a BSO may be omitted

Study Description

Brief Summary: Endometrial cancer (EC) is the most common gynaecological cancer. Current treatment of EC typically includes removal of the uterus and to determine the extent of the disease (removal of fallopian tubes, ovaries \& if required a lymph node dissection (surgical staging)). While lymph node dissection may be valuable to guide the need for adjuvant treatment (chemo or radiotherapy) after surgery, it has been a topic of controversy for the last 30 years. In some patients it causes morbidity, specifically lymphoedema. This recently has been replaced with sentinel node biopsy (SNB). It requires an injection of a dye into the cervix with specific equipment \& surgical dissection of the lymph node in which the dye first becomes visible. Despite this promising proposition \& similar to a lymph node dissection, the value to patients, cost effectiveness \& potential harms (e.g. lymphedema) of SNB compared to no-node dissection in EC has never been established. Aim: determine the value of SNB for patients, the healthcare system and exclude detriment to patients using a randomised approach 1:1. Stage 1 - 444 patients. Stage 2 additional 316 patients. Primary Outcome Stage 1: Proportion of participants returning to usual daily activities at 12 months from surgery using the EQ-5D which will determine when women in both groups can return to their usual activities. Primary Outcome Stage 2: Treatment non-inferiority as evaluated by disease-free survival status at 4.5 years post-surgery, as measured by the time interval between the date of randomisation and date of first recurrence. Confirmation of recurrent disease will be ascertained through clinical assessment, radiological work-up and/or histological results.

Detailed Description: Hypothesis: The primary hypothesis is that SNB will not cause detriment to patients (lymphoedema, morbidity, loss of quality of life) and not increase costs compared to patients without a retroperitoneal node dissection. The secondary hypothesis is that disease-free survival in patients without retroperitoneal node dissection is not inferior to those receiving SNB. Aims: To determine the value of SNB for patients, the healthcare system and to exclude detriment to patients. Objectives: Primary Stage 1: To determine the recovery of participants (defined as incidence of adverse events, lower limb lymphoedema and health-related QOL) and to the healthcare system (cost) of Sentinel Node Biopsy (SNB) for the surgical treatment of endometrial cancer. Primary Stage 2: Compare disease-free survival at 4.5 years for participants randomised to receive hysterectomy, bilateral salpingo-oophorectomy with SNB compared to participants randomised to hysterectomy, bilateral salpingo-oophorectomy without retroperitoneal node dissection. Secondary: * Compare patterns of recurrence and overall survival (OS) between the groups * Determine the cost-effectiveness of SNB * Compare Patient Reported Outcomes (PROMS) between the groups at 12 months from surgery * Compare Health Related Quality of Life (HRQL) and Fear of Recurrence between the groups at 12 months from surgery * Compare perioperative outcomes (duration of surgery, length of hospital stay, intraoperative blood loss, blood transfusion requirements) and the incidence of intra- and postoperative adverse events within 12 months from surgery between the groups * Compare lower limb lymphoedema at 12 months after surgery * Compare the need for postoperative (adjuvant) treatments between groups * Determine the impact of body composition and frailty on survival, quality of life, lymphoedema, peri-, intra- and postoperative outcomes * Compare follow-up strategies (clinical vs symptom checklist) * Translational Research - Trans-ENDO 3 - biobanking strategy - Compare the Molecular profile at 12 months from surgery between the groups