SHAPE-ENDO: Multimodal Pre-Surgical Optimization in Patients With Obesity and Early-Stage Endometrial Cancer

NCT07462663NOT_YET_RECRUITINGOBSERVATIONAL

Summary

Key Facts

Lead Sponsor

Hospital Universitari de Bellvitge

Enrollment

82

Start Date

2026-05-01

Completion Date

2026-06-01

Study Type

OBSERVATIONAL

Official Title

SHAPE-ENDO (Strategic Hormonal Approach & Prehabilitation in Endometrial Cancer): Prospective Observational Study for Metabolic and Surgical Optimization in Patients With Atypical Endometrial Hyperplasia or Early-stage Endometrial Cancer and BMI ≥35.

Interventions

semaglutideLevonorgestrel IUD (Lng-IUD)Oral ProgestinsDietetic-Nutritional interventionStructured Exercise and Prehabilitation ProgramEndometrial Biopsy With or Without HysteroscopyRadiologic Surveillance (MRI and Transvaginal Ultrasound)Terzipatide

Conditions

Endometrial CancerEndometrial Cancer Stage IAtypical Endometrial Hyperplasia and Endometrial Carcinoma Stage IAtypical Endometrial HyperplasiaEndometrial Intraepithelial NeoplasiaObesity & OverweightObesity (BMI > 35)

Eligibility

Age Range

18 Years+

Sex

FEMALE

Inclusion Criteria:

* Women ≥18 years old.
* Histologically confirmed Atypical Endometrial Hyperplasia / EIN or low-risk endometrioid endometrial carcinoma (G1-G2), confined to uterine body.
* Classified as low/intermediate risk per ESGO-ESTRO-ESP 2025; presurgical stages IA1, IA2 or IB.
* Negative or focal LVSI (if available).
* Molecular subgroups: POLEmut, p53wt, MMRd or NSMP ER+.
* BMI ≥35 kg/m² at inclusion.
* Acceptance of temporary conservative management and ability to follow multimodal optimization strategy.
* Ability to understand and sign informed consent.

Exclusion Criteria:

* FIGO stages IA3, IC, II or higher.
* Positive lymphovascular invasion.
* High-risk molecular: p53mut or NSMP ER-negative.
* Non-endometrioid histologies (serous, clear cell, carcinosarcoma, mixed, etc.).
* Metastatic or extra-uterine disease.
* Contraindication to GLP-1RA or progestogens.
* Previous pancreatitis, MEN-2, medullary thyroid carcinoma.
* Participation in another pharmacological trial.
* Any condition that in investigator judgment impairs safety or compliance.

Outcome Measures

Primary Outcomes

Proportion of patients achieving predefined metabolic and clinical optimization criteria

Optimization is defined as achieving ≥10% total body weight loss and/or reduction to BMI \<35 without evidence of tumor progression on histologic or radiologic assessment, enabling eligibility for minimally invasive surgery. Metabolic parameters (weight, BMI, waist circumference, HbA1c, blood pressure, and lipid profile) are recorded longitudinally. Progression is assessed through scheduled endometrial biopsy and imaging.

Time frame: Up to 12 months

Secondary Outcomes

Change in Glycated Hemoglobin (HbA1c)

Change from baseline in glycated hemoglobin (HbA1c, %) measured using standard clinical laboratory assays as a marker of glycemic control and cardiometabolic risk.

Time frame: Baseline to 6 months and Baseline to 12 months

Histological Complete Response Rate of Endometrial Lesion

Percentage of patients achieving complete histological response of the endometrial lesion assessed by endometrial biopsy with or without hysteroscopy. Histological evaluation is performed by gynecologic pathologists using standardized pathological criteria. Complete response is defined as absence of endometrial carcinoma or atypical hyperplasia on biopsy during follow-up. Unit of Measure: Percentage of patients (%).

Time frame: Baseline to 6 months and 12 months

Proportion of patients reaching eligibility for minimally invasive surgery

Proportion of patients who meet predefined clinical criteria for minimally invasive hysterectomy after multimodal optimization, including adequate metabolic improvement, anesthetic clearance, functional capacity, and absence of disease progression on pathology or imaging. Eligibility is determined by the multidisciplinary tumor board and surgical team.

Time frame: Up to 12 months

Change in Health-Related Quality of Life Score (SF-36)

Change from baseline in health-related quality of life assessed using the Short Form-36 Health Survey (SF-36) questionnaire. The SF-36 evaluates multiple domains of physical and mental health. Scores range from 0 to 100, with higher scores indicating better health-related quality of life..

Time frame: Baseline to 12 months

Incidence of adverse events related to standard-of-care treatments

Frequency, severity, and type of adverse events associated with standard-of-care treatments, including semaglutide and hormonal therapy. Events are documented through clinical records and routine follow-up visits, classified according to CTCAE criteria, and categorized as mild, moderate, severe, serious, or treatment-limiting. Only events occurring during active management and follow-up are included

Time frame: Baseline to 12 months

Perioperative outcomes following minimally invasive surgery

Perioperative outcomes in patients who undergo minimally invasive hysterectomy after optimization, including operative time, estimated blood loss, conversion to laparotomy, intraoperative complications, hospital stay, 30-day postoperative complications, and readmission. Complications will be graded according to Clavien-Dindo classification.

Time frame: At time of surgery and 30 days postoperatively

Changes in anthropometric measures (BMI, waist circumference, visceral adiposity)

Change in BMI, waist circumference, and percent weight loss categories (≥5%, ≥10%, ≥15%). Measurements taken at scheduled visits and analyzed longitudinally to evaluate response to multimodal optimization.

Time frame: Up to 12 months

Adherence to GLP-1 therapy, hormonal therapy, diet, and exercise interventions

Adherence to semaglutide, hormonal therapy (LNG-IUD ± oral progestins), dietary plan, and structured exercise program, including reasons for modification or discontinuation. Data obtained from clinical records, pharmacy dispensation, and self-reported logs.

Time frame: Baseline to 12 months

Change in Fasting Plasma Glucose

Change from baseline in fasting plasma glucose concentration (mg/dL) measured using standard biochemical laboratory analysis.

Time frame: Baseline to 6 months and Baseline to 12 months

Change in Serum Triglycerides

Change from baseline in serum triglyceride levels (mg/dL) measured using routine clinical laboratory lipid panel testing.

Time frame: Baseline to 6 months and Baseline to 12 months

Change in HDL Cholesterol

Change from baseline in high-density lipoprotein (HDL) cholesterol levels (mg/dL) measured using standard lipid panel testing.

Time frame: Baseline to 6 months and Baseline to 12 months

Change in LDL Cholesterol

Change from baseline in low-density lipoprotein (LDL) cholesterol levels (mg/dL) measured using standard lipid panel testing.

Time frame: Baseline to 6 months and Baseline to 12 months

Change in Blood Pressure

Change from baseline in systolic and diastolic blood pressure (mmHg) measured using standard clinical sphygmomanometry during routine clinical visits

Time frame: Baseline to 6 months and Baseline to 12 months

Change in C-Reactive Protein (CRP)

Change from baseline in serum C-reactive protein concentration (mg/L) measured using standard laboratory assays as a marker of systemic inflammation.

Time frame: Baseline to 6 months and Baseline to 12 months

Change in Quality of Life Score (EORTC QLQ-C30)

Change from baseline in quality of life assessed using the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30). The questionnaire evaluates global health status, functional scales, and symptom scales in oncology patients. Scores range from 0 to 100 according to EORTC scoring guidelines.

Time frame: Baseline to 12 months

Change in Functional Capacity

Change from baseline in functional capacity assessed using standardized physical activity tolerance or performance measures recorded during clinical follow-up visits.

Time frame: Baseline to 12 months

Linked Papers

2025-04-30

Risk factors for postoperative complications following hysterectomy in endometrial cancer patients: A systematic review

Endometrial cancer is the most prevalent type of cancer of the female reproductive system. Certain risk factors have been linked to a range of severe postoperative complications following hysterectomies in this patient population. Therefore, this systematic review aims to encompass all the significant risk factors identified that lead to postoperative complications in endometrial cancer patients following hysterectomy and possible risk factor mitigation strategies that can be made to limit these postoperative complications. The authors conducted the search across four libraries, including Cochrane, VHL, Web of Science, and PubMed. The authors identified original studies published from inception till November 2, 2024, that were relevant to the research question and fit the eligibility criteria. Preoperative factors include cancer staging, diabetes, frailty, obesity, medications, ASA class, and smoking; while intraoperative considerations include blood loss, operative time, length of hospital stay, lymphadenectomy, and surgical complexity. These risk factors were found to lead to a variety of postoperative complications ranging in grades on the Clavien Dindo classification (CD), including surgical site infections, urinary tract infections, lymphedema, lymphorrhea, lymphocyst, wound disruption, wound dehiscence, respiratory issues, ileus, and prolonged hospital stays. Before undergoing hysterectomies, endometrial cancer patients should be screened for risk factors to decrease the risk of postoperative complications. The employment of tailored mitigation strategies for individual patients through preoperative optimization, intraoperative management, and patient counseling is essential in preventing postoperative complications. By improving patient care and reducing hospital-acquired costs, surgeons will be more equipped to handle complex procedures and prevent unwanted outcomes.

2022-03-18

Impact of Obesity on Sentinel Lymph Node Mapping in Patients with apparent Early-Stage Endometrial Cancer: The ObeLyX study

Conflicting data exists on the impact of Body Mass Index (BMI) on sentinel lymph-node (SLN) detection. The primary study endpoint was to investigate the impact of obesity on overall detection rate, bilateral mapping, and mapping failure rate of SLN. In addition, we evaluated possible differences in terms of surgical management and "empty-packet dissection" rate among obese and non-obese patients. Multicenter, propensity-matched, retrospective study. Patients with apparent early-stage endometrial cancer were included. Study population was divided into women with BMI </≥ 30 (Group-1 and Group-2). To lower the selection bias, a propensity-matched analysis was performed. Matching was based on histotype (endometrioid vs non-endometrioid), age (</≥65 years old), and presence of lymph-vascular space invasion. Eight-hundred forty-four women were enrolled. After a 1:1 propensity-matched analysis, 764 patients were identified (Group-1 n = 382, Group-2 n = 382). A 1.156-fold increase in the risk of mapping failure for every 5 units of BMI increase was found (OR 1.156, 95% CI 1.033-1.294, p = 0.012), with a consequently decrease in bilateral mapping and overall detection rate (respectively OR 0.865, 95% CI 0.773-0.968, p = 0.012 and OR 0.785, 95% CI 0.670-0.920, p = 0.003). Obese patients were surgically under-staged in 9.4% of cases and showed an 8.2% of empty packet dissection (surgical under-staging: 5.0% vs 9.4%, p = 0.017; empty-packet dissection: 3.9% vs 8.2%, p = 0.022). BMI was confirmed as a statistically relevant predictor of mapping failure and decreased overall detection rate. In addition, obese women had a significantly higher odds of empty packet dissection.

2021-07-01

Lymphadenectomy, obesity and open surgery are associated with surgical complications in endometrial cancer

To investigate surgical complications related to the staging procedure for endometrial cancer (EC) and to explore complication associations towards patient characteristics and survival. A population-based cohort study of women diagnosed with EC where primary surgery was performed at a tertiary centre between 2012 and 2016. The Swedish Quality Registry for Gynecological Cancer was used for identification, medical records reviewed and surgical outcomes, including complications according to Clavien-Dindo (CD), and comorbidity (Charlson's index) registered. Uni- and multivariable logistic regression analyses were performed with complications as outcome and multivariable Cox regression analysis with overall survival (OS) as endpoint. In total 549 women were identified where 108 (19.7%) had CD grade II-V complications. In the multivariable regression analysis; surgical technique, BMI and lymph node dissection, but not comorbidity or age, were found to be risk factors for complications CD grade II-V, with OR of 0.32 (95%CI:0.18-0.56) for minimalinvasive surgery (MIS) compared to open, OR 2.18 (95%CI:1.37-3.49) for BMI ≥30 and OR 2.63 (95%CI:1.32-5.31) for pelvic and paraaortic lymphnode dissection. In Cox regression analysis, a significant lower OS was found within the first 1.5 years for the cohort of complications (CD II-V) compared to no complications. Surgical staging with lymphadenectomy was found a risk factor for complications together with high BMI in EC. Using MIS was significantly associated with less complications. Overall survival was found to be negatively affected within the first years after complications. Our results may be taken into consideration when performing updated treatment guidelines including surgical staging.

ESGO–ESTRO–ESP guidelines for the management of patients with endometrial carcinoma: update 2025

In 2023, based on advances in the understanding of the pathological and molecular features of endometrial carcinoma, an updated International Federation of Gynaecology and Obstetrics (FIGO) staging system was published, aiming to better define prognostic groups and identify relevant treatment subgroups by including factors reflecting tumour biology (histological subtypes, lymphovascular space invasion, and molecular classification) alongside refinements of anatomical factors (peritoneal carcinomatosis and lymph node metastasis). As part of its mission to improve the quality of care for people with gynaecological cancers, the European Society of Gynaecological Oncology (ESGO), European Society for Radiotherapy and Oncology (ESTRO), and the European Society of Pathology (ESP) updated the ESGO-ESTRO-ESP evidence-based guidelines published in 2021 by incorporating this revised FIGO staging and the large body of new evidence addressing the management of endometrial carcinoma. The development process of these guidelines was based on a systematic literature review and critical appraisal process involving an international multidisciplinary development group consisting of 30 experts from relevant disciplines (gynaecological oncology, radiation oncology, medical oncology, and pathology). A patient representative was also included. Before publication, the guidelines were reviewed by 225 independent international practitioners in cancer care delivery and three patient representatives from Asia, Europe, North Africa, North America, the Middle East, and South America to ensure a global perspective. These guidelines comprehensively cover diagnosis, management, follow-up, and patient education. Management includes surgical and adjuvant therapy according to the stage of the disease, and metastatic and recurrent disease. The management algorithms and the principles of radiotherapy and pathological evaluation are also defined.