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Study on Intraoperative Sentinel Lymph Node Diagnosis in Robot-Assisted Surgery for Endometrial Cancer

A Clinical Study on the Negative Predictive Value of Intraoperative Sentinel Lymph Node Diagnosis in Robot-Assisted Surgery for Endometrial Cancer

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs061250016
Enrollment
10
Registered
2025-05-14
Start date
2025-06-06
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

endometrial cancer

Interventions

This study involves the identification of sentinel lymph nodes in endometrial cancer, a procedure that has not yet been covered by insurance in Japan.

Sponsors

Komatsu Hiroaki
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: Patients who meet all of the following criteria will be included 1) Patients undergoing robot-assisted malignant uterine tumor surgery for clinically stage IA endometrial cancer. 2) Patients with histological types of endometrioid adenocarcinoma G1 or G2. 3) Patients without pathological lymph node enlargement as assessed by preoperative pelvic MRI and chest-to-pelvic CT. 4) Patients aged 18 years or older at the time of obtaining consent. 5) Patients with an ECOG Performance status, PS) of 0 or 1. 6) patients with no prior history of radiation or chemotherapy for uterine cancer. 7) patients with preserved cardiac, hepatic, renal, and pulmonary function. 8) Patients who have provided written informed consent.

Exclusion criteria

Exclusion criteria: 1) Patients with a history of hypersensitivity to indocyanine green (ICG). 2) Patients with a history of iodine hypersensitivity. 3) Patients with psychiatric disorders or symptoms that may make participation in the study difficult. 4) Patients deemed unsuitable by the principal investigator or co-investigators.

Design outcomes

Primary

MeasureTime frame
The negative predictive value of sentinel lymph node (SN) biopsy identified using the combined method will be assessed using permanent tissue specimens. The sentinel lymph nodes and other pelvic lymph nodes will be evaluated through permanent histopathological examination.

Secondary

MeasureTime frame
1) Sensitivity of SN biopsy identified by the combined method based on permanent tissue specimens. 2) The incidence of postoperative complications potentially influenced by pelvic lymphadenectomy (e.g., lower limb lymphedema, lymphocyst formation, ileus, and others). 3) The frequency of intraoperative factors, including operative time, intraoperative blood loss, need for transfusion, and presence of nerve injury. 4) The concordance rate between intraoperative frozen section diagnosis and permanent histopathological diagnosis of SN biopsy. 5) The SN detection rate (agreement rate of the ICG dye method compared to the RI method).

Contacts

Public ContactMayumi Sawada

Tottori University Hospital

m.sawada511@tottori-u.ac.jp+81-859-38-6647

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026