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NCT07821775Completed

Robotic vs Laparoscopic and Open Surgery for Abdominopelvic Cancers

Early Oncologic and Perioperative Outcomes of Robotic Surgery Across Seven Abdominopelvic Malignancies

Source: ClinicalTrials.gov · Last updated 16 Sept 2026

Brief summary (registry, in English)

Robotic surgery has become an increasingly common option for treating cancers in the abdomen and pelvis. However, whether robotic surgery leads to better cancer-related outcomes than laparoscopic (keyhole) surgery or open surgery is still uncertain. Results may differ across cancer types, and factors such as how complex the surgery is and how experienced the surgeon is may also influence the outcome. This retrospective cohort study examined adults who underwent curative-intent surgery for one of seven abdominopelvic cancers (pancreatic, gastric, rectal, cervical, endometrial, kidney, or prostate cancer) at a large tertiary hospital in Seoul, South Korea, between January 2012 and December 2021. Patients were classified into three groups according to the surgical approach they received: open, laparoscopic, or robotic surgery. The main outcome was 1-year disease-free survival, defined as the time from surgery to the first occurrence of cancer recurrence, distant metastasis, or death from any cause. Additional outcomes included 1-year mortality, overall mortality during follow-up, major postoperative complications, acute kidney injury, and length of hospital stay. To reduce differences between groups that might affect the comparison, the study used a statistical method called propensity score overlap weighting. Additional analyses adjusted for surgical complexity, surgeon experience including robotic learning curve, and pathological cancer stage to isolate the effect of the surgical platform itself. The purpose of this study was to evaluate whether the association between surgical approach and early oncologic and perioperative outcomes differed across the seven cancer types, and whether any observed advantage of the robotic platform remained after accounting for these factors.

Status (registry)
Completed
Study type
Observational
Enrollment
32949 (actual)
First submitted
10 Sept 2026
Start date
1 Jan 2012
Primary completion date
31 Dec 2022
Lead sponsor
Asan Medical Center
NCT number
NCT07821775

What you commit to

  • Study type: Observational
  • Participants enrolled: 32949
  • From 1 Jan 2012 to the primary completion date, 31 Dec 2022
  • 1 site in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Presence of distant metastasis before surgery
  • Presentation with recurrent disease from previously treated cancer

Other

  • Incomplete or missing key demographic, comorbidity, operative, or outcome data required for analysis

Who the study is looking for

  • Age 18 years or older
  • Underwent curative-intent abdominopelvic surgery for a nonmetastatic malignant solid tumor of one of the following types: pancreatic, gastric, rectal, cervical, endometrial, kidney, or prostate cancer
  • Surgery performed between January 1, 2012, and December 31, 2021
  • Available postoperative surveillance data

Age in the registry: 18 years to - · Sex: All

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Asan Medical Center, University of Ulsan College of Medicine
Coordinator of this site? Confirm its status
SeoulSouth KoreaUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.