Minimally Invasive Radical Hysterectomy Using Endoscopic Stapler in Stage IB2 or IIA1 Cervical Cancer
SOLUTION2
A Multicenter Non-inferiority Randomized Controlled Trial on Minimally Invasive Radical Hysterectomy Using an Endoscopic Stapler to Prevent Tumor Spillage in Stage IB2-IIA1 Cervical Cancer
2 other identifiers
interventional
494
1 country
1
Brief Summary
This study is a multicenter, open-label, non-inferiority, randomized controlled, investigator-initiated clinical trial comparing the efficacy and safety of open radical hysterectomy versus minimally invasive radical hysterectomy using an endoscopic stapler as surgical treatments for early cervical cancer.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Jan 2026
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 6, 2025
CompletedFirst Posted
Study publicly available on registry
December 2, 2025
CompletedStudy Start
First participant enrolled
January 1, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2034
ExpectedStudy Completion
Last participant's last visit for all outcomes
June 30, 2035
December 2, 2025
November 1, 2025
9 years
October 6, 2025
November 27, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
4.5-year progression-free survival rate
Proportion of patients alive without disease progression or death at 4.5 years after enrollment, as assessed by radiographic imaging and/or clinical criteria
Up to 4.5 years after enrollment
Secondary Outcomes (14)
Intraoperative complcation rate
During surgery
Postoperative acute complication rate within 4 weeks
Within 4 weeks after surgery
Postoperative complication rate after 4 weeks
Greater than 4 weeks up to 12 months post-surgery
Operation time
Peri-procedural
Estimated blood loss
Peri-procedural
- +9 more secondary outcomes
Study Arms (2)
Open radical hysterectomy
EXPERIMENTALRadical hysterectomy is performed via open surgery
Minimally invasive radical hysterectomy
EXPERIMENTALRadical hysterectomy is performed via minimally invasive surgery
Interventions
Radical hysterectomy is performed via open surgery, and Wertheim clamp is used for preventing tumor spillage during colpotomy
Radical hysterectomy is performed via minimally invasive surgery, and an endoscopic stapler is used for preventing tumor spillage during colpotomy
Eligibility Criteria
You may qualify if:
- FIGO stage IB2 or IIA1 cervical cancer (tumor maximum diameter ≥2 cm and \<4 cm)
- Histologically confirmed squamous cell carcinoma, adenocarcinoma, or adenosquamous carcinoma
- Planned for Type B or C radical hysterectomy
- With adequate bone marrow, renal, and hepatic function
- WBC \>3.0 × 10⁹ cells/L
- Platelets \>100 × 10⁹ cells/L
- Creatinine \<180 μmol/L
- Bilirubin \<1.5 × normal range
- AST, ALT \< 3 × normal range
- Eastern Cooperative Oncology Group (ECOG) performance status 0-2
- Previous history of other invasive malignancies with no evidence of recurrence for at least 5 years
- Signed and approved consent form
You may not qualify if:
- Histological types other than squamous cell carcinoma, adenocarcinoma, or adenosquamous carcinoma
- Tumor size less than 2 cm classified as 2018 FIGO stage IA1, IA2, or IB1 disease
- The following are observed on preoperative CT or MRI
- Tumor size ≥4 cm
- Lymph node metastasis (short axis ≥15 mm)
- Paracervical invasion
- Bladder or rectal invasion
- Distant metastasis
- Prior pelvic or abdominal radiotherapy
- Prior neoadjuvant chemotherapy before surgery
- Unsuitable for surgery due to severe systemic disease at the investigator's discretion
- Difficult to consider intraoperative lymphatic mapping due to
- Allergy to triphenylmethane compounds
- History of prior retroperitoneal surgery
- History of prior pelvic radiotherapy
- +2 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Seoul National University Hospitallead
- Ajou University School of Medicinecollaborator
- SMG-SNU Boramae Medical Centercollaborator
- Konkuk Universitycollaborator
- DongGuk Universitycollaborator
- Keimyung Universitycollaborator
- National Cancer Center, Koreacollaborator
- The Catholic University of Koreacollaborator
- Wonju Severance Christian Hospitalcollaborator
- Kangbuk Samsung Hospitalcollaborator
- Asan Medical Centercollaborator
- Samsung Medical Centercollaborator
- Sinchon Severance Hospital, Yonsei University College of Medicinecollaborator
Study Sites (1)
Seoul National University College of Medicine
Seoul, 03080, South Korea
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Clinical Professor
Study Record Dates
First Submitted
October 6, 2025
First Posted
December 2, 2025
Study Start
January 1, 2026
Primary Completion (Estimated)
December 31, 2034
Study Completion (Estimated)
June 30, 2035
Last Updated
December 2, 2025
Record last verified: 2025-11
Data Sharing
- IPD Sharing
- Will not share