Clinical trial Recruiting at 45 sites Phase 3 Interventional Ages 18 and up Women only

Comparing lymph node mapping techniques for endometrial cancer treatment

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

Run by NRG Oncology · NCT05646316 · Data updated 2026-11-12

This study is testing whether a new way of mapping lymph nodes during surgery for early-stage endometrial cancer can help reduce leg swelling compared to the standard method.

Quick facts

PhasePhase 3
Study typeInterventional
Ages18 Years and up
SexWomen only
Enrollment428 (estimated)
SponsorNRG Oncology
Academic / other
Drugs / interventionschemotherapy, immunotherapy, radiation
Locations60 sites (Washington D.C., District of Columbia and 59 other locations)
StatusRecruiting
StartedDecember 7, 2022
Main results expectedMarch 31, 2029
Study endsMarch 31, 2030
Registry record updatedNovember 6, 2026
Trial IDNCT05646316 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 and older with a confirmed diagnosis of stage I endometrial cancer planning to undergo laparoscopic or robotic hysterectomy.

Probably not a fit

Patients with metastatic disease or those whose concurrent malignancies may interfere with the study's safety or efficacy assessments may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This phase III trial evaluates the effectiveness of sentinel lymph node mapping versus standard lymph node dissection in reducing leg swelling (lymphedema) in patients undergoing hysterectomy for stage I endometrial cancer. Participants will be randomized to receive either technique during their surgery, with the primary goal of assessing lower extremity limb dysfunction through patient-reported outcomes. Secondary objectives include measuring changes in limb circumference and validating the sentinel lymph node mapping algorithm's effectiveness. The study aims to provide insights into the long-term impacts of these surgical approaches on patient quality of life.

Why it matters

Potential benefit: If successful, this study could lead to improved surgical techniques that minimize the risk of lymphedema in patients with endometrial cancer.

How similar studies have gone: Previous studies have shown promise in using sentinel lymph node mapping for various cancers, suggesting potential success for this approach in endometrial cancer.

Who can join: the full rules

Show full inclusion / exclusion criteria
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

Where it's running

  • UM Sylvester Comprehensive Cancer Center at Coral Gables
    Coral Gables, Florida, United States
    Recruiting
  • UM Sylvester Comprehensive Cancer Center at Deerfield Beach
    Deerfield Beach, Florida, United States
    Recruiting
  • UM Sylvester Comprehensive Cancer Center at Doral
    Doral, Florida, United States
    Recruiting
  • University of Miami Miller School of Medicine-Sylvester Cancer Center
    Miami, Florida, United States
    Recruiting
  • UM Sylvester Comprehensive Cancer Center at Kendall
    Miami, Florida, United States
    Recruiting
  • University of Miami Sylvester Comprehensive Cancer Center at Sole Mia
    North Miami, Florida, United States
    Recruiting
Show 44 more locations
  • UM Sylvester Comprehensive Cancer Center at Plantation
    Plantation, Florida, United States
    Recruiting
  • Augusta University Medical Center
    Augusta, Georgia, United States
    Recruiting
  • Northwestern University
    Chicago, Illinois, United States
    Recruiting
  • Northwestern Medicine Cancer Center Warrenville
    Warrenville, Illinois, United States
    Recruiting
  • IU Health North Hospital
    Carmel, Indiana, United States
    Recruiting
  • Indiana University/Melvin and Bren Simon Cancer Center
    Indianapolis, Indiana, United States
    Recruiting
  • West Jefferson Medical Center
    Marrero, Louisiana, United States
    Recruiting
  • East Jefferson General Hospital
    Metairie, Louisiana, United States
    Recruiting
  • LSU Healthcare Network / Metairie Multi-Specialty Clinic
    Metairie, Louisiana, United States
    Recruiting
  • Louisiana State University Health Science Center
    New Orleans, Louisiana, United States
    Recruiting
  • University Medical Center New Orleans
    New Orleans, Louisiana, United States
    Recruiting
  • University of Maryland/Greenebaum Cancer Center
    Baltimore, Maryland, United States
    Recruiting
  • UM Upper Chesapeake Medical Center
    Bel Air, Maryland, United States
    Recruiting
  • Wayne State University/Karmanos Cancer Institute
    Detroit, Michigan, United States
    Recruiting
  • Weisberg Cancer Treatment Center
    Farmington Hills, Michigan, United States
    Recruiting
  • McLaren Cancer Institute-Flint
    Flint, Michigan, United States
    Recruiting
  • Fairview Southdale Hospital
    Edina, Minnesota, United States
    Recruiting
  • Fairview Clinics and Surgery Center Maple Grove
    Maple Grove, Minnesota, United States
    Recruiting
  • Saint John's Hospital - Healtheast
    Maplewood, Minnesota, United States
    Recruiting
  • Fairview Northland Medical Center
    Princeton, Minnesota, United States
    Recruiting
  • Regions Hospital
    Saint Paul, Minnesota, United States
    Recruiting
  • Fairview Lakes Medical Center
    Wyoming, Minnesota, United States
    Recruiting
  • Mercy Hospital Springfield
    Springfield, Missouri, United States
    Recruiting
  • Fred and Pamela Buffett Cancer Center - Kearney
    Kearney, Nebraska, United States
    Recruiting
  • Nebraska Medicine-Village Pointe
    Omaha, Nebraska, United States
    Recruiting
  • University of Nebraska Medical Center
    Omaha, Nebraska, United States
    Recruiting
  • Women's Cancer Center of Nevada
    Las Vegas, Nevada, United States
    Recruiting
  • University of Oklahoma Health Sciences Center
    Oklahoma City, Oklahoma, United States
    Recruiting
  • Women and Infants Hospital
    Providence, Rhode Island, United States
    Recruiting
  • Parkland Memorial Hospital
    Dallas, Texas, United States
    Recruiting
  • UT Southwestern/Simmons Cancer Center-Dallas
    Dallas, Texas, United States
    Recruiting
  • UT Southwestern/Simmons Cancer Center-Fort Worth
    Fort Worth, Texas, United States
    Recruiting
  • Memorial Hermann Texas Medical Center
    Houston, Texas, United States
    Recruiting
  • UT Southwestern Clinical Center at Richardson/Plano
    Richardson, Texas, United States
    Recruiting
  • University of Virginia Cancer Center
    Charlottesville, Virginia, United States
    Recruiting
  • Gachon University Gil Hospital
    Incheon, South Korea
    Recruiting
  • Asan Medical Center
    Seoul, South Korea
    Recruiting
  • Gangnam Severance Hospital
    Seoul, South Korea
    Recruiting
  • Ewha Woman's University Mokdong Hospital
    Seoul, South Korea
    Recruiting
  • George Washington University Medical Center
    Washington D.C., District of Columbia, United States
    Suspended
  • Saint Vincent Healthcare
    Billings, Montana, United States
    Active not recruiting
  • Saint Vincent Frontier Cancer Center
    Billings, Montana, United States
    Active not recruiting
  • Intermountain Health West End Clinic
    Billings, Montana, United States
    Active not recruiting
  • Saint James Community Hospital and Cancer Treatment Center
    Butte, Montana, United States
    Active not recruiting

+10 more sites. See ClinicalTrials.gov for the full list.

Study contacts

  • Principal investigator: Edward J Tanner — NRG Oncology

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
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Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.