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CHOLELITHIASISCENoMIPNCT01489436

A Comparison of Single Port and Four Port Laparoscopic Gallbladder Removal

A study testing Single-port cholecystectomy and Four-port laparoscopic cholecystectomy in people with CHOLELITHIASIS, run by Mayo Clinic at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

New minimally invasive surgical treatments are often outpatient procedures with low complication rates, promising fast recovery. The traditional physician-reported outcomes such as complication rates, blood loss, and hospital stay are not useful to guide treatment recommendations for one or the other minimally… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
CHOLELITHIASIS
What is being tested?
Single-port cholecystectomy and Four-port laparoscopic cholecystectomy
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
118 participants
Where
1 siteUnited States
Study dates
Jul 2011to Mar 2014
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 1) patients undergoing cholecystectomy in an elective setting for symptomatic gallstone disease.

Who cannot join

  • Patients <18 years of age
  • Pregnant patients
  • Patients with ASA-class >3
  • Patients undergoing treatment for chronic pain with opiates
  • Patients with biopsy proven gallbladder cancer
  • Patients who cannot provide consent for the study
  • Patients not willing to participate in the study
  • Prisoners/Institutionalized individuals

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Mayo Clinic in Rochester

    Rochester, Minnesota, 55905

Other trials in United States

About this study

Official title: Comparative Effectiveness of Novel Minimally Invasive Procedures

New minimally invasive surgical treatments are often outpatient procedures with low complication rates, promising fast recovery. The traditional physician-reported outcomes such as complication rates, blood loss, and hospital stay are not useful to guide treatment recommendations for one or the other minimally invasive procedure. This study aims to apply patient-reported outcomes developed within the NIH framework for cancer research and chronic disease treatment to the comparative effectiveness research in minimally invasive procedures for benign disease.

Read the detailed description

To establish a pathway for comparative effectiveness using patient reported outcomes in minimally invasive surgery, we propose to use a readily available and easily reproducible model: cholecystectomy. Each year in the United States, approximately 750,000 patients undergo a cholecystectomy. Patients clearly prefer the laparoscopic approach over the open procedure to abdominal surgery. Initial survey data suggest that patients may also prefer even less invasive approaches.

Currently, the standard operative procedure for a patient with symptomatic gallstone disease is a laparoscopic cholecystectomy performed under general anesthesia with four small abdominal incisions. Although postoperative pain and cardiopulmonary and wound complications are much less compared to open cholecystectomy, considerable cost is generated from lost productivity in days off of work after the surgical procedure related in part to pain and the physiologic response to the stress of the operative procedure. Anecdotal data suggest that fewer incisions, especially fewer transabdominal incisions, translate into less pain, less need for narcotic pain medication and faster recovery, but randomized trial data are needed. We propose to compare the effectiveness of the novel single-port cholecystectomy with laparoscopic cholecystectomy, the current standard of care.

Conditions
CHOLELITHIASIS
Being tested
Single-port cholecystectomy, Four-port laparoscopic cholecystectomy
Keywords
gallstone disease, cholecystectomy, minimally invasive, surgical, laparoscopic, single port, cytokine
Medical subject headings
Cholelithiasis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Single-port cholecystectomyProcedure or surgery

    Also called Minimally invasive surgery

    In brief, a flexible, multi-sleeve 15-mm trocar designed specifically for single-port cholecystectomy will be inserted at the umbilicus via a 15-mm single incision. This trocar permits simultaneous introduction of multiple instruments, including a 5-mm flexible-tip laparoscope. Standard 5-mm instruments will be used for retraction and dissection. An additional 2-mm grasping device may be introduced in the right upper quadrant for retraction if necessary. A 5-mm laparoscopic clip applier will be introduced through the periumbilical trocar to ligate the cystic artery and the cystic duct. The gallbladder will be removed through the umbilical port.

  • Four-port laparoscopic cholecystectomyProcedure or surgery

    Also called Minimally invasive surgery

    The control procedure for the research practicum is a four-trocar laparoscopic cholecystectomy, the current gold-standard operation. This approach utilizes a 10-mm trocar placed at the umbilicus via a 15-mm incision and three separate subcostal 5-mm trocars placed via separate 5-mm incisions. The gallbladder will be removed through the umbilical trocar site. On occasion, this incision needs to be enlarged to accommodate removal of the gallbladder.

Study groups in NCT01489436
Study groupRoleWhat they receive
Single port cholecystectomyActive comparatorIn brief, a flexible, multi-sleeve 15-mm trocar designed specifically for single-port cholecystectomy will be inserted at the umbilicus via a 15-mm single incision. An additional 2-mm grasping device may be introduced in the right upper quadrant for retraction if necessary; this device is placed percutaneously without the need for a trocar. A 5-mm laparoscopic clip applier will be introduced through the periumbilical trocar to ligate the cystic artery and the cystic duct. The gallbladder will be removed through the umbilical port, adequate hemostasis is ensured, the umbilical trocar removed, and the single operative site will be closed and sterile dressings applied (four Band-Aids).
Receives: Procedure: Single-port cholecystectomy
Four-port laparoscopic cholecystectomyActive comparatorThe control procedure for the research practicum is a four-trocar laparoscopic cholecystectomy, the current gold-standard operation. This approach utilizes a 10-mm trocar placed at the umbilicus via a 15-mm incision and three separate subcostal 5-mm trocars placed via separate 5-mm incisions. The gallbladder will be removed through the umbilical trocar site. On occasion, this incision needs to be enlarged to accommodate removal of the gallbladder. Trocar sites will be closed and sterile dressings applied (four Band-Aids).
Receives: Procedure: Four-port laparoscopic cholecystectomy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Pain Scores on the Visual Analog Scale

    The investigators will utilize the Patient-Reported Outcomes from the VAS to measure changes from Baseline to day 1 post OP. A 15-mm difference on a 100-mm visual analog scale with a standard deviation of 25 mm at any time point will constitute a clinically relevant difference.

    Measured: Baseline to Post Operative day 1

Secondary outcomes (3)
  1. Quality of Life (QOL)

    Patients QOL will be measured via Patient-Reported Outcomes Measures Information System (PROMIS) and Linear Analog Self Assessment (LASA) tools.

    PROMIS Global Health Short Form and LASA are validated assessment tools. A 2-point difference is considered the minimally important difference in chronic disease for an item in the PROMIS and LASA tools.

    Measured: up to 7 days

  2. Heart Rate Variability (HRV) Data

    HRV is the bodies' physiological response to pain as measured through digitally captured ECG combined with electronically captured blood pressure.We will measure HRV to determine subtle differences between to the two surgical approaches.

    Measured: During surgery from incision to closure

  3. Cytokine levels in blood

    Frequently used biomarkers are inflammatory cytokines, specifically the serum levels of the early response pro-inflammatory cytokines TNF-α, Interleukin 1b, Interleukin 6 and Interleukin 8. We will measure and analyze these cytokine levels at set time points to determine if any subtle difference in the levels between the two surgical approaches is significant.

    Measured: Baseline, during surgery form incision to closure, 1 hour post OP and 4 hour post OP

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Dec 2011 (estimated)
  2. Study startJul 2011
  3. Primary completionMar 2014
  4. Study completionMar 2014

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Outcomes assessor
Enrolment
118 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01489436
Sponsor's protocol ID
11-001162
Acronym
CENoMIP
Status last verified
Mar 2019
First submitted
25 Aug 2011
Last updated
19 Mar 2019
Results posted
No
Data monitoring committee
Yes

Publications

  • Bingener J, Skaran P, McConico A, Novotny P, Wettstein P, Sletten DM, Park M, Low P, Sloan J. A Double-Blinded Randomized Trial to Compare the Effectiveness of Minimally Invasive Procedures Using Patient-Reported Outcomes. J Am Coll Surg. 2015 Jul;221(1):111-21. doi: 10.1016/j.jamcollsurg.2015.02.022. Epub 2015 Mar 3.

    PubMed 26095558

Questions about this trial

What is this clinical trial studying?

A study testing Single-port cholecystectomy and Four-port laparoscopic cholecystectomy in people with CHOLELITHIASIS, run by Mayo Clinic at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 19 Mar 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Pain Scores on the Visual Analog Scale (time frame: Baseline to Post Operative day 1). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01489436, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 Mar 2019.

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