Impact of Sentinel Lymph Node Mapping on Patient Reported Lower Extremity Limb Dysfunction in Stage I Endometrial Cancer

March 23, 2026 updated by: NRG Oncology

A Phase III Trial Of The Impact Of Sentinel Lymph Node Mapping On Patient Reported Lower Extremity Limb Dysfunction In Endometrial Cancer

This phase III trial compares the effect of sentinel lymph node mapping to standard lymph node dissection in reducing the risk of swelling in the legs (lymphedema) in patients undergoing a hysterectomy for stage I endometrial cancer. Standard lymph node dissection removes lymph nodes around the uterus during a hysterectomy to look for spread of cancer from the uterus to nearby lymph nodes. Sentinel lymph node mapping uses a special dye and camera to look for cancer that may have spread to nearby lymph nodes. Comparing the results of the procedures may help doctors predict the risk of long-term swelling in the legs.

Study Overview

Detailed Description

PRIMARY OBJECTIVES:

I. To compare the rates of lower extremity limb dysfunction (defined as a >= 4-point increase in Gynecologic Cancer Lymphedema Questionnaire [GCLQ] symptom score from baseline) in patients with apparent uterine confined endometrial cancer randomized to one of two lymphatic assessment strategies at time of hysterectomy:

Ia. Sentinel lymph node mapping and excision followed by side-specific lymphadenectomy on sides without a sentinel lymph node (SLN) identified according to a National Comprehensive Cancer Network (NCCN) guidelines approved algorithm (Arm 1); Ib. Sentinel lymph node mapping and excision according to an NCCN Guidelines approved algorithm followed by bilateral pelvic +/- para-aortic lymphadenectomy (Arm 2).

SECONDARY OBJECTIVE:

I. To compare changes in lower extremity limb circumference in patients with apparent uterine confined endometrial cancer randomized to one of two lymphatic assessment strategies at time of hysterectomy.

II. To validate the test characteristics of a SLN mapping algorithm including SLN detection rates, rate of perioperative complications, rate of identifying lymphatic metastases, and detection of micrometastases using pathologic ultra-staging.

EXPLORATORY OBJECTIVES:

I. To compare adjuvant therapy decisions in patients with apparent uterine confined endometrial cancer randomized to one of two lymphatic assessment strategies at time of hysterectomy.

II. To explore the impact of patient characteristics (age, body mass index [BMI], race), extent of lymph node dissection, and adjuvant therapy decisions (radiation, chemotherapy) on the development of lower extremity limb dysfunction - as well as their interaction with lymph node assessment strategies.

III. To evaluate the cost-effectiveness of SLN mapping with or without completion of lymphadenectomy for endometrial cancer.

SAFETY OBJECTIVE:

I. To compare progression free and overall survival in patients with apparent uterine confined endometrial cancer randomized to one of two lymphatic assessment strategies at time of hysterectomy.

OUTLINE: Patients are randomized to 1 of 2 arms.

ARM 1: Patients receive ICG dye via injection and undergo sentinel lymph node mapping and excision during standard minimally invasive hysterectomy. Lymph nodes around the uterus may be removed if the mapping and excision cannot be completed. Successful mapping requires no additional removal of lymph nodes.

ARM 2: Patients receive ICG dye via injection and undergo sentinel lymph node mapping and excision during standard minimally invasive hysterectomy. Additional lymph nodes around the uterus are removed per standard of care.

Patients in both arms also undergo imaging as clinically indicated and optional blood sample collection throughout the study.

After completion of study intervention, patients are followed every 3 months for one year and at 18 and 24 months.

Study Type

Interventional

Enrollment (Estimated)

428

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • District of Columbia
      • Washington D.C., District of Columbia, United States, 20037
        • Suspended
        • George Washington University Medical Center
    • Florida
      • Coral Gables, Florida, United States, 33146
        • Recruiting
        • UM Sylvester Comprehensive Cancer Center at Coral Gables
        • Contact:
          • Site Public Contact
          • Phone Number: 305-243-2647
        • Principal Investigator:
          • Abdulrahman Sinno
      • Deerfield Beach, Florida, United States, 33442
        • Recruiting
        • UM Sylvester Comprehensive Cancer Center at Deerfield Beach
        • Contact:
          • Site Public Contact
          • Phone Number: 305-243-2647
        • Principal Investigator:
          • Abdulrahman Sinno
      • Doral, Florida, United States, 33166
        • Recruiting
        • UM Sylvester Comprehensive Cancer Center at Doral
        • Principal Investigator:
          • Abdulrahman Sinno
        • Contact:
      • Miami, Florida, United States, 33136
        • Recruiting
        • University of Miami Miller School of Medicine-Sylvester Cancer Center
        • Contact:
          • Site Public Contact
          • Phone Number: 305-243-2647
        • Principal Investigator:
          • Abdulrahman Sinno
      • Miami, Florida, United States, 33176
        • Recruiting
        • UM Sylvester Comprehensive Cancer Center at Kendall
        • Contact:
          • Site Public Contact
          • Phone Number: 305-243-2647
        • Principal Investigator:
          • Abdulrahman Sinno
      • North Miami, Florida, United States, 33181
        • Recruiting
        • University of Miami Sylvester Comprehensive Cancer Center at Sole Mia
        • Principal Investigator:
          • Abdulrahman Sinno
        • Contact:
      • Plantation, Florida, United States, 33324
        • Recruiting
        • UM Sylvester Comprehensive Cancer Center at Plantation
        • Contact:
          • Site Public Contact
          • Phone Number: 305-243-2647
        • Principal Investigator:
          • Abdulrahman Sinno
    • Georgia
      • Augusta, Georgia, United States, 30912
        • Recruiting
        • Augusta University Medical Center
        • Principal Investigator:
          • Sharad A. Ghamande
        • Contact:
    • Illinois
      • Chicago, Illinois, United States, 60611
        • Recruiting
        • Northwestern University
        • Contact:
        • Principal Investigator:
          • Emily Hinchcliff
      • Warrenville, Illinois, United States, 60555
        • Recruiting
        • Northwestern Medicine Cancer Center Warrenville
        • Contact:
        • Principal Investigator:
          • Emily Hinchcliff
    • Indiana
      • Carmel, Indiana, United States, 46032
        • Recruiting
        • IU Health North Hospital
        • Contact:
        • Principal Investigator:
          • Lisa M. Landrum
      • Indianapolis, Indiana, United States, 46202
        • Recruiting
        • Indiana University/Melvin and Bren Simon Cancer Center
        • Contact:
        • Principal Investigator:
          • Lisa M. Landrum
    • Louisiana
      • Marrero, Louisiana, United States, 70072
        • Recruiting
        • West Jefferson Medical Center
        • Contact:
        • Principal Investigator:
          • Tara Castellano
      • Metairie, Louisiana, United States, 70006
        • Recruiting
        • East Jefferson General Hospital
        • Contact:
        • Principal Investigator:
          • Tara Castellano
      • Metairie, Louisiana, United States, 70006
        • Recruiting
        • LSU Healthcare Network / Metairie Multi-Specialty Clinic
        • Contact:
        • Principal Investigator:
          • Tara Castellano
      • New Orleans, Louisiana, United States, 70112
        • Recruiting
        • University Medical Center New Orleans
        • Contact:
        • Principal Investigator:
          • Tara Castellano
      • New Orleans, Louisiana, United States, 70112
        • Recruiting
        • Louisiana State University Health Science Center
        • Contact:
        • Principal Investigator:
          • Tara Castellano
    • Maryland
      • Baltimore, Maryland, United States, 21201
        • Recruiting
        • University of Maryland/Greenebaum Cancer Center
        • Contact:
          • Site Public Contact
          • Phone Number: 800-888-8823
        • Principal Investigator:
          • Gautam G. Rao
      • Bel Air, Maryland, United States, 21014
        • Recruiting
        • UM Upper Chesapeake Medical Center
        • Contact:
          • Site Public Contact
          • Phone Number: 443-643-3010
        • Principal Investigator:
          • Gautam G. Rao
    • Michigan
      • Detroit, Michigan, United States, 48201
        • Recruiting
        • Wayne State University/Karmanos Cancer Institute
        • Principal Investigator:
          • Robert T. Morris
        • Contact:
      • Farmington Hills, Michigan, United States, 48334
        • Recruiting
        • Weisberg Cancer Treatment Center
        • Principal Investigator:
          • Robert T. Morris
        • Contact:
      • Flint, Michigan, United States, 48532
        • Recruiting
        • McLaren Cancer Institute-Flint
        • Principal Investigator:
          • Robert T. Morris
        • Contact:
    • Minnesota
      • Edina, Minnesota, United States, 55435
        • Recruiting
        • Fairview Southdale Hospital
        • Contact:
        • Principal Investigator:
          • Britt K. Erickson
      • Maple Grove, Minnesota, United States, 55369
        • Recruiting
        • Fairview Clinics and Surgery Center Maple Grove
        • Contact:
        • Principal Investigator:
          • Britt K. Erickson
      • Maplewood, Minnesota, United States, 55109
        • Recruiting
        • Saint John's Hospital - Healtheast
        • Contact:
        • Principal Investigator:
          • Britt K. Erickson
      • Princeton, Minnesota, United States, 55371
        • Recruiting
        • Fairview Northland Medical Center
        • Contact:
        • Principal Investigator:
          • Britt K. Erickson
      • Saint Paul, Minnesota, United States, 55101
        • Recruiting
        • Regions Hospital
        • Contact:
        • Principal Investigator:
          • Britt K. Erickson
      • Wyoming, Minnesota, United States, 55092
        • Recruiting
        • Fairview Lakes Medical Center
        • Contact:
        • Principal Investigator:
          • Britt K. Erickson
    • Missouri
      • Springfield, Missouri, United States, 65804
        • Recruiting
        • Mercy Hospital Springfield
        • Principal Investigator:
          • Jay W. Carlson
        • Contact:
          • Site Public Contact
          • Phone Number: 417-269-4520
    • Montana
      • Billings, Montana, United States, 59101
        • Active, not recruiting
        • Saint Vincent Healthcare
      • Billings, Montana, United States, 59102
        • Active, not recruiting
        • Saint Vincent Frontier Cancer Center
      • Billings, Montana, United States, 59106
        • Active, not recruiting
        • Intermountain Health West End Clinic
      • Butte, Montana, United States, 59701
        • Active, not recruiting
        • Saint James Community Hospital and Cancer Treatment Center
    • Nebraska
      • Kearney, Nebraska, United States, 68845
        • Recruiting
        • Fred and Pamela Buffett Cancer Center - Kearney
        • Contact:
        • Principal Investigator:
          • Kerry J. Rodabaugh
      • Omaha, Nebraska, United States, 68198
        • Recruiting
        • University of Nebraska Medical Center
        • Contact:
        • Principal Investigator:
          • Kerry J. Rodabaugh
      • Omaha, Nebraska, United States, 68118
        • Recruiting
        • Nebraska Medicine-Village Pointe
        • Contact:
          • Site Public Contact
          • Phone Number: 402-559-5600
        • Principal Investigator:
          • Kerry J. Rodabaugh
      • Omaha, Nebraska, United States, 68124
        • Active, not recruiting
        • Alegent Health Bergan Mercy Medical Center
    • Nevada
      • Las Vegas, Nevada, United States, 89106
        • Recruiting
        • Women's Cancer Center of Nevada
        • Principal Investigator:
          • Nicola M. Spirtos
        • Contact:
          • Site Public Contact
          • Phone Number: 702-851-4672
    • Oklahoma
      • Oklahoma City, Oklahoma, United States, 73104
        • Recruiting
        • University of Oklahoma Health Sciences Center
        • Contact:
        • Principal Investigator:
          • Christina Washington
    • Pennsylvania
      • Bryn Mawr, Pennsylvania, United States, 19010
        • Suspended
        • Bryn Mawr Hospital
      • Paoli, Pennsylvania, United States, 19301
        • Suspended
        • Paoli Memorial Hospital
      • Wynnewood, Pennsylvania, United States, 19096
        • Suspended
        • Lankenau Medical Center
    • Rhode Island
      • Providence, Rhode Island, United States, 02905
        • Recruiting
        • Women and Infants Hospital
        • Principal Investigator:
          • Matthew T. Oliver
        • Contact:
          • Site Public Contact
          • Phone Number: 401-274-1122
    • Texas
      • Dallas, Texas, United States, 75390
        • Recruiting
        • UT Southwestern/Simmons Cancer Center-Dallas
        • Principal Investigator:
          • Jayanthi S. Lea
        • Contact:
      • Dallas, Texas, United States, 75235
        • Recruiting
        • Parkland Memorial Hospital
        • Principal Investigator:
          • Jayanthi S. Lea
        • Contact:
      • Fort Worth, Texas, United States, 76104
        • Recruiting
        • UT Southwestern/Simmons Cancer Center-Fort Worth
        • Principal Investigator:
          • Jayanthi S. Lea
        • Contact:
      • Houston, Texas, United States, 77030
        • Recruiting
        • Memorial Hermann Texas Medical Center
        • Contact:
          • Site Public Contact
          • Phone Number: 713-792-3245
        • Principal Investigator:
          • Joseph A. Lucci
      • Houston, Texas, United States, 77030
        • Active, not recruiting
        • Houston Methodist Hospital
      • Houston, Texas, United States, 77070
        • Active, not recruiting
        • Methodist Willowbrook Hospital
      • Houston, Texas, United States, 77094
        • Active, not recruiting
        • Houston Methodist West Hospital
      • Richardson, Texas, United States, 75080
        • Recruiting
        • UT Southwestern Clinical Center at Richardson/Plano
        • Principal Investigator:
          • Jayanthi S. Lea
        • Contact:
      • Sugar Land, Texas, United States, 77479
        • Active, not recruiting
        • Houston Methodist Sugar Land Hospital
      • The Woodlands, Texas, United States, 77385
        • Active, not recruiting
        • Houston Methodist The Woodlands Hospital
    • Virginia
      • Charlottesville, Virginia, United States, 22908

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Histologically proven diagnosis of endometrial cancer based on endometrial sampling with a plan to undergo laparoscopic or robotic hysterectomy and lymphatic assessment as part of primary management. Biopsy must be performed within 90 days prior to registration
  • Clinical stage I endometrial cancer based on the following diagnostic workup:

    • History/physical examination within 30 days prior to registration is reassuring for the absence of metastatic disease
  • Age >= 18 years
  • Eastern Cooperative Oncology Group (ECOG) Performance Status of 0, 1 or 2
  • Patients with a prior or concurrent malignancy whose natural history or treatment does not have the potential to interfere with the safety or efficacy assessment of the investigational regimen are eligible for this trial
  • The patient or a legally authorized representative must provide study-specific informed consent prior to study entry and, for patients treated in the United States (U.S.), authorization permitting release of personal health information
  • Patients must speak English, Spanish, or Korean

Exclusion Criteria:

  • Patients whom the surgeon believes is not a candidate for pelvic lymphadenectomy due to medical comorbidities or other technical challenges (i.e. morbid obesity or prior surgery)
  • History of chemotherapy or immunotherapy for the treatment of endometrial cancer. Progestin-containing therapies such as megestrol, medroxyprogesterone, or levonorgestrel-containing intrauterine device (IUD) are acceptable
  • History of radiation to the pelvis, groin or lower extremities, or surgery to the pelvic lymph nodes or inguinal lymph nodes
  • Patients who are going to undergo another elective surgery during the same operative event as their hysterectomy (i.e., sacrocolpopexy, cholecystectomy)
  • Patients with severe, active co-morbidity defined as follows:

    • History of patient or provider identified lower extremity lymphedema
    • History of patient or provider identified chronic lower extremity swelling
    • History of lower extremity or pelvic deep venous thromboembolism within 90 days of registration
    • History of lower extremity cellulitis within 90 days of registration

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Arm 1 (sentinel lymph node mapping)
Patients receive ICG dye via injection and undergo sentinel lymph node mapping and excision during standard minimally invasive hysterectomy. Lymph nodes around the uterus may be removed if the mapping and excision cannot be completed. Successful mapping requires no additional removal of lymph nodes. Patients also undergo imaging as clinically indicated and optional blood sample collection throughout the study.
Ancillary studies
Undergo blood sample collection
Other Names:
  • Biological Sample Collection
  • Biospecimen Collected
  • Specimen Collection
Undergo sentinel lymph node mapping
Other Names:
  • Sentinel Lymph Node Imaging
Undergo minimally invasive hysterectomy
Other Names:
  • Minimally-Invasive Surgery
  • Surgery, Minimally Invasive
Undergo pelvic lymphadenectomy
Other Names:
  • Excision Pelvic Lymph Nodes
  • Pelvic Lymph Node Dissection
Given via injection
Other Names:
  • IC-GREEN
  • ICG Solution
Undergo sentinel lymph node excision
Other Names:
  • surgical biopsy
  • Biopsy, Excisional
Undergo imaging
Other Names:
  • Medical Imaging
  • Diagnostic Imaging
Experimental: Arm 2 (sentinel lymph node mapping, pelvic lymphadenectomy)
Patients receive ICG dye via injection and undergo sentinel lymph node mapping and excision during standard minimally invasive hysterectomy. Additional lymph nodes around the uterus are removed per standard of care. Patients also undergo imaging as clinically indicated and optional blood sample collection throughout the study.
Ancillary studies
Undergo blood sample collection
Other Names:
  • Biological Sample Collection
  • Biospecimen Collected
  • Specimen Collection
Undergo sentinel lymph node mapping
Other Names:
  • Sentinel Lymph Node Imaging
Undergo minimally invasive hysterectomy
Other Names:
  • Minimally-Invasive Surgery
  • Surgery, Minimally Invasive
Undergo pelvic lymphadenectomy
Other Names:
  • Excision Pelvic Lymph Nodes
  • Pelvic Lymph Node Dissection
Given via injection
Other Names:
  • IC-GREEN
  • ICG Solution
Undergo sentinel lymph node excision
Other Names:
  • surgical biopsy
  • Biopsy, Excisional
Undergo imaging
Other Names:
  • Medical Imaging
  • Diagnostic Imaging

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Incidence of patient-reported lower extremity limb dysfunction
Time Frame: From 18 months post-hysterectomy after undergoing lymphatic assessment to 39 months
The primary endpoint is the incidence of patient-reported lower extremity limb dysfunction at 18 months post-hysterectomy after undergoing lymphatic assessment according to a National Comprehensive Cancer Network guideline-based sentinel lymph node (SLN) mapping algorithm with or without completion of lymphadenectomy. The primary endpoint will be assessed using the Gynecologic Cancer Lymphedema Questionnaire (GCLQ) questionnaire. Surveys will be performed at enrollment (pre-surgery) and at 3, 6, 9, 12, and 18 months post-surgery. Patient-reported lower extremity limb dysfunction will be defined as an increase in GCLQ symptom score of at least four (4) points from baseline at any time during the 18 months follow-up. The primary null hypothesis will be evaluated with an intent-to-treat chi-squared test, adjusted for stratification factors. Proportional hazards modeling will be used to generate a hazard ratio and 95% confidence limits of Arm 1 versus Arm 2.
From 18 months post-hysterectomy after undergoing lymphatic assessment to 39 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The incidence of lymphedema by quantifiable lower extremity limb changes
Time Frame: From enrollment and at 3, 6, 9, 12, and 18 months after surgery
Patients will undergo circumferential lower extremity limb measures at three locations along each leg. Change will be estimated as measurement at baseline subtracted from measurement at follow-up. This will be assessed in both legs separately.
From enrollment and at 3, 6, 9, 12, and 18 months after surgery
Rate of successful bilateral SLN identification
Time Frame: At time of surgery
Will be assessed in both, and only as the time of surgery.
At time of surgery
Rate of successful identification of lymph node metastasis
Time Frame: At time of surgery
Will be assessed in both, and only as the time of surgery. The rate of lymph node metastasis identification during surgery will be compared between groups, with either t-tests or chi-squared tests where appropriate.
At time of surgery
Rate of perioperative complications
Time Frame: At time of surgery
Will be assessed in both arms separately, and only as the time of surgery. The rate of perioperative complications during surgery will be compared between groups, with either t-tests or chi-squared tests where appropriate.
At time of surgery

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Adjuvant therapy decisions
Time Frame: Up to 24 months
Adjuvant therapy decisions will be compared for patients according to study arm allocation after accounting for tumor characteristics, stage, and patient demographics to determine whether lymph node mapping strategies was associated with a difference in adjuvant therapy choice.
Up to 24 months
Progression free survival
Time Frame: The duration of time from study entry to time of progression or death, whichever occurs first, or date of last contact if neither progression nor death has occurred, assessed at 2 years after enrollment
This endpoint is not expected to be sufficiently powered for a definitive comparison and will therefore be treated as supportive evidence.
The duration of time from study entry to time of progression or death, whichever occurs first, or date of last contact if neither progression nor death has occurred, assessed at 2 years after enrollment
Overall survival
Time Frame: Duration of time from study entry to time of death or the date of last contact, assessed at 2 years after enrollment
This endpoint is not expected to be sufficiently powered for a definitive comparison and will therefore be treated as supportive evidence.
Duration of time from study entry to time of death or the date of last contact, assessed at 2 years after enrollment
Patient characteristic, extent of lymph node dissection, and adjuvant therapy decisions
Time Frame: Up to 24 months
Patient characteristics (age, body mass index, race), extent of lymph node dissection, and adjuvant therapy decisions (radiation, chemotherapy), will be collected to determine their impact as a covariate on the development of the primary endpoint (lower extremity limb dysfunction). Models adjusting for potential confounders will be fitted and analyzed.
Up to 24 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Investigators

  • Principal Investigator: Edward J Tanner, NRG Oncology

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

December 7, 2022

Primary Completion (Estimated)

October 31, 2026

Study Completion (Estimated)

October 31, 2026

Study Registration Dates

First Submitted

December 2, 2022

First Submitted That Met QC Criteria

December 2, 2022

First Posted (Actual)

December 12, 2022

Study Record Updates

Last Update Posted (Actual)

March 27, 2026

Last Update Submitted That Met QC Criteria

March 23, 2026

Last Verified

March 1, 2026

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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