ClinicalTrials.gg
CompletedNCT03312569ANCORUpdated Mar 12, 2024

Robotic-assisted and Laparoscopic Right Colectomy Study - Intracorporeal vs. Extracorporeal Anastomoses

An observational study in Benign Right Colon Disease and Malignant Right Colon Disease, sponsored by Intuitive Surgical. Completed at 4 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-03-12.

Sponsored by Intuitive Surgical · Observational

Study type
Observational
Model
Case-only
Time perspective
Prospective
Enrollment
306
Ages
18 Years and older
Sex
All
01

Study summary

To compare intracorporeal and extracorporeal anastomoses for robotic-assisted and laparoscopic right colectomies

Read the detailed description

This is a prospective multicenter observational study to evaluate outcomes of intracorporeal and extracorporeal anastomoses for robotic-assisted and laparoscopic right colectomies.

02

Conditions studied

  • Benign Right Colon Disease
  • Malignant Right Colon Disease
03

In context

Lead sponsor

Intuitive Surgical is the lead sponsor of 62 studies on the registry; 6 are open to participants now.

Of its 7 completed or terminated interventional studies of FDA-regulated products, 1 (14%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Subject undergoing either laparoscopic or robotic-assisted right colectomy for benign or malignant right colon disease

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Subject is 18 years or older
  • Subject undergoing either laparoscopic or robotic-assisted right colectomy for benign or malignant right colon disease
  • Subject undergoing intracorporeal or extracorporeal anastomosis proximal to mid-transverse colon

Exclusion criteria

Exclusion Criteria:

  • Subject is for general anesthesia or surgery
  • Emergent Case
  • Subject has perforated, obstructing or locally invasive neoplasm (T4b)
  • Subject with inflammatory bowel disease
  • Subject with prior incisional hernia repair
  • Planned right colectomy along with major concomitant procedures (e.g. hepatectomies, other intestinal resections).
  • disease with of less than 1 year
  • Pregnant or suspect pregnancy
  • Subject is mentally handicapped or has a psychological disorder or severe systemic illness that would preclude compliance with study requirements or ability to provide
  • Subject belonging to other vulnerable population, e.g, prisoner or ward of the state
Terms in these criteria, in plain language(4)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Observational model
Case-only
Time perspective
Prospective
Enrollment
306 participants (actual)
Patient registry
No

Groups and cohorts

  • Intracorporeal Anastomosis

    Participants will undergo either robotic-assisted or laparoscopic surgery with an intracorporeal anastomosis due to begin or malignant Right Colon Disease.

    Procedure: Right Colectomy with Intracorporeal Anastomosis

  • Extracorporeal Anastomosis

    Participants will undergo either robotic-assisted or laparoscopic surgery with an extracorporeal anastomosis due to begin or malignant Right Colon Disease.

    Procedure: Right Colectomy with Extracorporeal Anastomosis

Interventions

  • ProcedureRight Colectomy with Intracorporeal Anastomosis

    With the patient under general anesthesia, pneumoperitoneum is achieved by a method of choice of the operating surgeon. Port Placement is completed as per the standard of care. Dissection is performed and the ileocolic vessels are identified. The right mesocolon is mobilized and the ileal mesentery is divided. The transverse colon and ileum are then divided with the stapler. Next, attention is turned to constructing the anastomosis. For this purpose, the terminal ileum and the transverse colon stump are brought together. A colotomy and ileostomy is created to form a common channel. The common enterotomy is then closed as per the surgeon's standard of care. The specimen is extracted through an off-midline incision (muscle splitting transverse incision, Pfannenstiel).

  • ProcedureRight Colectomy with Extracorporeal Anastomosis

    With the patient under general anesthesia, pneumoperitoneum is achieved by a method of choice of the operating surgeon. Port Placement is completed as per the standard of care. Dissection is performed and the ileocolic vessels are identified. Intracorporeal devascularization may be performed at the surgeon's discretion. The gastrocolic ligament is taken down and the hepatic flexure is mobilized. After complete mobilization of the right colon, the midline incision is extended to serve as the extraction site. The specimen is delivered through the midline extraction incision and the anastomosis is conducted in a standard open technique. The two cut ends of the bowels are aligned for extracorporeal anastomosis.

06

What researchers measure

Primary outcomes

  1. Incidence of incisional hernia at one year after index procedure.

    The primary endpoint of the study is the incidence of incisional hernia for intracorporeal and extracorporeal anastomoses within one year after the right colectomy procedure. Incidence of incisional hernia either patient self-reported or clinical diagnosis will be assessed at one year after the right colectomy procedure.

    Time frame: 1 year

Secondary outcomes

  1. Time to first flatus after index procedure

    The secondary endpoint of the study is time to first flatus for intracorporeal and extracorporeal anastomoses after the right colectomy procedure. Time to first flatus is defined as days from a right colectomy procedure to first occurrence of flatus during subject's post-operative recovery.

    Time frame: up to 1 week after index procedure

07

Study locations

4 sites
  • University of California
    Irvine, California 92697, United States
  • St. Joseph Mercy Hospital
    Ann Arbor, Michigan 48197, United States
  • Washington University at St. Louis
    Saint Louis, Missouri 63110, United States
  • Allegheny General Hospital
    Pittsburgh, Pennsylvania 15212, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Feb 2018 to primary completion in Feb 2022, 48 months.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 12, 2017
First posted
Oct 17, 2017
StartActual
Feb 1, 2018
Primary completionActual
Feb 14, 2022
CompletionActual
Jul 24, 2023
Last update
Mar 12, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Mar 12, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03312569
Lead sponsor
Intuitive Surgical
Responsible party
Sponsor
First posted
Oct 17, 2017
Start date
Feb 1, 2018
Primary completion
Feb 14, 2022
Completion
Jul 24, 2023
Last update
Mar 12, 2024

Study contacts

Shilpa Mehendale
study director · Intuitive Surgical Inc

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2024. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion