Comparison of Two-Position and Four-Position Cervical Injection Techniques for Sentinel Lymph Node Mapping in Endometrial Cancer Using Methylene Blue
NCT ID: NCT07040657
Last Updated: 2025-06-27
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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RECRUITING
NA
100 participants
INTERVENTIONAL
2025-05-01
2026-11-01
Brief Summary
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Detailed Description
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This randomized controlled trial will include patients with preoperative stage I endometrial carcinoma. Participants will be randomized into two groups: one group will receive a 2-point methylene blue cervical injection, and the other group will receive a 4-point injection.
The primary endpoint is the difference in SLN detection rates between the two techniques. Findings from this study will provide detailed insights into whether the 4-point injection offers a significant advantage over the standard 2-point method.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
DIAGNOSTIC
DOUBLE
Study Groups
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2- Point Methylene Blue Injection
In the 2-point injection arm, participants will receive the standard sentinel lymph node (SLN) mapping technique using methylene blue. The procedure involves injecting methylene blue dye into two specific locations on the cervix:
At the 3 o'clock position At the 9 o'clock position
Sentinel Lymph Node Detection/Cervical Methylene Blue Injection
Sentinel Lymph Node (SLN) detection using cervical methylene blue injection is a surgical technique designed to identify the primary lymph nodes responsible for draining the uterus in patients with endometrial cancer. The procedure involves injecting methylene blue dye into specific locations within the cervical stroma to enable lymphatic uptake. The dye subsequently travels through the lymphatic channels, allowing for intraoperative visual identification of the sentinel nodes. This targeted approach facilitates selective SLN excision for pathological evaluation, providing critical information about lymphatic involvement while minimizing the extent of surgical dissection. The effectiveness of SLN mapping is contingent upon the accuracy of the injection technique and the anatomical distribution of lymphatic drainage.
4- Point Methylene Blue Injection
In the 4-point injection arm, participants will receive the standard sentinel lymph node (SLN) mapping technique using methylene blue. The procedure involves injecting methylene blue dye into two specific locations on the cervix:
At the 2 o'clock position At the 4 o'clock position At the 8 o'clock position At the 10 o'clock position
Sentinel Lymph Node Detection/Cervical Methylene Blue Injection
Sentinel Lymph Node (SLN) detection using cervical methylene blue injection is a surgical technique designed to identify the primary lymph nodes responsible for draining the uterus in patients with endometrial cancer. The procedure involves injecting methylene blue dye into specific locations within the cervical stroma to enable lymphatic uptake. The dye subsequently travels through the lymphatic channels, allowing for intraoperative visual identification of the sentinel nodes. This targeted approach facilitates selective SLN excision for pathological evaluation, providing critical information about lymphatic involvement while minimizing the extent of surgical dissection. The effectiveness of SLN mapping is contingent upon the accuracy of the injection technique and the anatomical distribution of lymphatic drainage.
Interventions
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Sentinel Lymph Node Detection/Cervical Methylene Blue Injection
Sentinel Lymph Node (SLN) detection using cervical methylene blue injection is a surgical technique designed to identify the primary lymph nodes responsible for draining the uterus in patients with endometrial cancer. The procedure involves injecting methylene blue dye into specific locations within the cervical stroma to enable lymphatic uptake. The dye subsequently travels through the lymphatic channels, allowing for intraoperative visual identification of the sentinel nodes. This targeted approach facilitates selective SLN excision for pathological evaluation, providing critical information about lymphatic involvement while minimizing the extent of surgical dissection. The effectiveness of SLN mapping is contingent upon the accuracy of the injection technique and the anatomical distribution of lymphatic drainage.
Eligibility Criteria
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Inclusion Criteria
* Individuals with a pathologically confirmed diagnosis of stage I endometrial cancer.
Exclusion Criteria
* Individuals diagnosed with dementia.
* Individuals with allergies to methylene blue or iodine.
* Individuals who have received active treatment for another malignancy within the past five years.
* Inability to successfully perform PLD (pelvic lymphadenectomy) or history of prior PLD.
* Women with multiple and confluent lymph nodes identified as positive on FDG-PET/CT (such cases are not considered stage I).
Cancer-Related Conditions
* Individuals with clinically or radiologically identified positive lymph nodes or metastatic disease.
* Individuals with a history of pelvic dissection and/or radiation therapy.
* Individuals with advanced cervical or uterine cancer.
* Individuals with T3/T4 lesions.
* Individuals with cervical tumors larger than 2 cm.
Organ Dysfunction
• Individuals with hepatic dysfunction and a MELD score ≥ 10 and creatinine ≥ 2·0 mg/dl patients.
18 Years
75 Years
FEMALE
No
Sponsors
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Dokuz Eylul University
OTHER
Responsible Party
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İbrahim Yalçın
Principal Investigator
Locations
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Ankara University
Ankara, , Turkey (Türkiye)
Dokuz Eylul University
Izmir, , Turkey (Türkiye)
Countries
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Central Contacts
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Facility Contacts
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Salih Taskin, MD
Role: primary
References
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Sehnal B, Waldauf P, Matej R, Hruda M, Robova H, Drozenova J, Pichlik T, Zapletal J, Rob L, Halaska MJ. Comparison of tracer application methods for sentinel lymph node detection in open surgery patients with endometrial cancer: a retrospective cohort study. BMC Cancer. 2025 Apr 8;25(1):638. doi: 10.1186/s12885-025-14037-8.
Holloway RW, Abu-Rustum NR, Backes FJ, Boggess JF, Gotlieb WH, Jeffrey Lowery W, Rossi EC, Tanner EJ, Wolsky RJ. Sentinel lymph node mapping and staging in endometrial cancer: A Society of Gynecologic Oncology literature review with consensus recommendations. Gynecol Oncol. 2017 Aug;146(2):405-415. doi: 10.1016/j.ygyno.2017.05.027. Epub 2017 May 28.
Salman L, Cusimano MC, Marchocki Z, Ferguson SE. Sentinel lymph node mapping in endometrial cancer: Current evidence and practice. J Surg Oncol. 2024 Jan;129(1):117-119. doi: 10.1002/jso.27550. Epub 2023 Dec 7.
Leitao MM Jr, Zhou QC, Gomez-Hidalgo NR, Iasonos A, Baser R, Mezzancello M, Chang K, Ward J, Chi DS, Long Roche K, Sonoda Y, Brown CL, Mueller JJ, Gardner GJ, Jewell EL, Broach V, Zivanovic O, Dowdy SC, Mariani A, Abu-Rustum NR. Patient-reported outcomes after surgery for endometrial carcinoma: Prevalence of lower-extremity lymphedema after sentinel lymph node mapping versus lymphadenectomy. Gynecol Oncol. 2020 Jan;156(1):147-153. doi: 10.1016/j.ygyno.2019.11.003. Epub 2019 Nov 25.
Terada S, Tanaka T, Murakami H, Tsuchihashi H, Toji A, Daimon A, Miyamoto S, Nishie R, Ueda S, Hashida S, Morita N, Maruoka H, Konishi H, Kogata Y, Taniguchi K, Komura K, Ohmichi M. Lymphatic Complications Following Sentinel Node Biopsy or Pelvic Lymphadenectomy for Endometrial Cancer. J Clin Med. 2023 Jul 7;12(13):4540. doi: 10.3390/jcm12134540.
Altin D, Taskin S, Ortac F, Tokgozoglu N, Vatansever D, Guler AH, Gungor M, Tasci T, Bese T, Turan H, Kahramanoglu I, Yalcin I, Celik C, Demirkiran F, Kose F, Arvas M, Ayhan A, Taskiran C. Diagnostic accuracy of sentinel node biopsy in non-endometrioid, high-grade and/or deep myoinvasive endometrial cancer: A Turkish gynecologic oncology group study (TRSGO-SLN-006). Gynecol Oncol. 2022 Mar;164(3):492-497. doi: 10.1016/j.ygyno.2022.01.009. Epub 2022 Jan 13.
Niikura H, Kaiho-Sakuma M, Tokunaga H, Toyoshima M, Utsunomiya H, Nagase S, Takano T, Watanabe M, Ito K, Yaegashi N. Tracer injection sites and combinations for sentinel lymph node detection in patients with endometrial cancer. Gynecol Oncol. 2013 Nov;131(2):299-303. doi: 10.1016/j.ygyno.2013.08.018. Epub 2013 Aug 27.
Geppert B, Lonnerfors C, Bollino M, Arechvo A, Persson J. A study on uterine lymphatic anatomy for standardization of pelvic sentinel lymph node detection in endometrial cancer. Gynecol Oncol. 2017 May;145(2):256-261. doi: 10.1016/j.ygyno.2017.02.018. Epub 2017 Feb 10.
Perrone AM, Casadio P, Formelli G, Levorato M, Ghi T, Costa S, Meriggiola MC, Pelusi G. Cervical and hysteroscopic injection for identification of sentinel lymph node in endometrial cancer. Gynecol Oncol. 2008 Oct;111(1):62-7. doi: 10.1016/j.ygyno.2008.05.032. Epub 2008 Jul 14.
Dick A, Perri T, Kogan L, Brandt B, Meyer R, Levin G. Sentinel lymph node mapping in endometrial cancer: A comparison of main national and international guidelines. Int J Gynaecol Obstet. 2023 Jan;160(1):220-225. doi: 10.1002/ijgo.14307. Epub 2022 Jul 5.
Fotopoulou C, Ind T, Baldwin P, Crawford R, Devaja O, Dobbs S, Frost J, Gajjar K, Ganesan R, Kaushik S, Morrison J, Nobbenhuis M, Ratnavelu N, Rolland P, Singh N, Taylor A, Sundar S, Nordin A. Sentinel lymph node consensus document of the British Gynaecological Cancer Society for endometrial, vulvar, and cervical cancers. Int J Gynecol Cancer. 2019 Nov;29(9):1348-1350. doi: 10.1136/ijgc-2019-000798. No abstract available.
Dioun S, Chen L, Melamed A, Gockley A, St Clair CM, Hou JY, Khoury-Collado F, Hershman DL, Wright JD. Uptake and outcomes of sentinel lymph node mapping in women undergoing minimally invasive surgery for endometrial cancer. BJOG. 2022 Aug;129(9):1591-1599. doi: 10.1111/1471-0528.17085. Epub 2022 Jan 25.
Baiocchi G, Andrade CEMC, Ribeiro R, Moretti-Marques R, Tsunoda AT, Alvarenga-Bezerra V, Lopes A, Costa RLR, Kumagai LY, Badiglian-Filho L, Faloppa CC, Mantoan H, De Brot L, Dos Reis R, Goncalves BT. Sentinel lymph node mapping versus sentinel lymph node mapping with systematic lymphadenectomy in endometrial cancer: an open-label, non-inferiority, randomized trial (ALICE trial). Int J Gynecol Cancer. 2022 May 3;32(5):676-679. doi: 10.1136/ijgc-2022-003378.
Sozzi G, Fanfani F, Berretta R, Capozzi VA, Uccella S, Buono N, Giallombardo V, Di Donna MC, Monterossi G, Restaino S, Capasso I, Dinoi G, Scambia G, Chiantera V. Laparoscopic sentinel node mapping with intracervical indocyanine green injection for endometrial cancer: the SENTIFAIL study - a multicentric analysis of predictors of failed mapping. Int J Gynecol Cancer. 2020 Nov;30(11):1713-1718. doi: 10.1136/ijgc-2020-001724. Epub 2020 Aug 31.
Other Identifiers
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693-SBKAEK
Identifier Type: -
Identifier Source: org_study_id
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