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NCT Number: NCT06246448

Robotic-assisted Contra Open Resection for Suspected or Confirmed Gallbladder Cancer (ROBOCOP)

The Robocop trial is an international multi-centre, single blinded, randomized controlled superiority trial conducted in centres experienced in robotic-assisted liver surgery. Eligible patients for radical cholecystectomy will be randomized in a 1:1 ratio to undergo robotic-assisted or open resection within an enhanced recovery setting.

The primary endpoint is time to functional recovery. Secondary endpoints include length of hospital stay, resection margin, number of retrieved lymph nodes, postoperative complications, quality of life, abdominal wall complaints and direct and indirect costs.

Recruiting

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Region Stockholm

Stockholm, Sweden

Location status: Recruiting

Location contact

Christian Sturesson, PhD

CONTACT

[email protected]

About this study

Robotic-assisted surgery is hypothesised to reduce time to functional recovery by 2 days compared with open surgery. With a power of 80% and alpha of 0.05, the sample size needed in each arm to test superiority is 35 patients. With an expected 25% drop-out rate, 47 patients will be randomized in each group, with a total of 94 patients to be randomized in the trial.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Patient with radiologically suspected or confirmed (≥T1b) incidental gallbladder cancer after cholecystectomy with an indication of radical cholecystectomy, without the need for resection of extrahepatic bile ducts, as decided at a multidisciplinary team conference.
  • Patient sufficiently fit to undergo radical cholecystectomy according to surgeon and anaesthesiologist.

Exclusion criteria

  • Previous extensive surgery in the upper abdomen (for example open liver surgery)
  • Pregnancy
  • Intraoperative findings of dissemination (patient is then excluded after randomization)
  • Intraoperative findings of the need to perform resection of extrahepatic bile ducts (patient is then excluded after randomization).
  • Intraoperative findings leading to a simple cholecystectomy only (patient is then excluded after randomization)

Treatment and study plan

Robotic-assisted radical cholecystectomy

Procedure

Procedure will be performed robotic-assisted

Open radical cholecystectomy

Procedure

Procedure will be open

Primary outcomes

  1. Time to functional recovery

    Time frame: Days from operation

    As defined as: 1. has adequate pain control with oral analgesics only (NRS<5) 2. is independently mobile at the preoperative level 3. is able to maintain sufficient oral caloric intake (minimum of 50% required calories) 4. has no need for intravenous fluid administration 5. has no clinical signs of infection or infection treated with peroral antibiotics only

Secondary outcomes

  1. Number of retrieved lymph nodes

    Time frame: Within 6 weeks after surgery

    As reported by pathologists

  2. Length of hospital stay

    Time frame: Days

    Time from operation until hospital discharge (days)

  3. Post-operative complications

    Time frame: Within 90 days from surgery

    Classified according to Clavien-Dindo

  4. Quality of life of patients

    Time frame: 1 year

    Using quality of life formulaire EORTC QLQ-C30

  5. Total cost

    Time frame: 1 year

    Direct and indirect cost measured in euros

  6. Abdominal wall complaints

    Time frame: 1 year

    Using the ventral hernia pain questionnaire

Study contacts

Contact information is provided by the study sponsor or research team.

Christian Sturesson, PhD

CONTACT

[email protected]

0046812380000

Sponsors and collaborators

Lead sponsor

Karolinska University Hospital

Other

Collaborators

  • Rigshospitalet, Denmark
  • Sahlgrenska University Hospital
  • University Hospital, Linkoeping

Registry information

Official study title

Robotic-assisted Contra Open Resection for Suspected or Confirmed Gallbladder Cancer - An International, Multi-centre, Single Blinded, Randomized Controlled Superiority Trial

Acronym: ROBOCOP

Important dates

Study start
2024
Primary completion
2026
Study completion
2027
First posted
Feb 7, 2024
Registry last updated
Sep 5, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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