Safety and Cost-effectiveness Study of Single Port Laparoscopic Cholecystectomies (SPoCOT)

This study is currently recruiting participants. (see Contacts and Locations)
Verified December 2014 by University of Lausanne Hospitals
Information provided by (Responsible Party):
Nicolas DEMARTINES, University of Lausanne Hospitals Identifier:
First received: September 8, 2009
Last updated: December 3, 2014
Last verified: December 2014
Many feasibility studies have been published on Single Port surgery, but no comparative studies have shown any advantages compared to standard laparoscopy. The purpose of this study is to compare the clinical outcomes and economical issues of laparoscopic cholecystectomies using single port transumbilical approach and three trocars.

Condition Intervention Phase
Procedure: Single Trocar CCK
Procedure: Standard CCK
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Single Port vs Tree Trocars Laparoscopic Cholecystectomy: a Randomized Controlled Trial

Resource links provided by NLM:

Further study details as provided by University of Lausanne Hospitals:

Primary Outcome Measures:
  • Pain [ Time Frame: 1 day ] [ Designated as safety issue: No ]
  • Pain [ Time Frame: 2 days ] [ Designated as safety issue: No ]
  • Pain [ Time Frame: 1 month ] [ Designated as safety issue: No ]
  • Pain [ Time Frame: 3 month ] [ Designated as safety issue: No ]
  • Pain [ Time Frame: 1 year ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Complications [ Time Frame: 1 month ] [ Designated as safety issue: Yes ]
  • Operative time [ Time Frame: Operative day ] [ Designated as safety issue: No ]
  • Cost analysis [ Time Frame: 1 year ] [ Designated as safety issue: No ]
  • Cosmetic results [ Time Frame: 1 month ] [ Designated as safety issue: No ]
  • Cosmetic results [ Time Frame: 3 month ] [ Designated as safety issue: No ]
  • Cosmetic results [ Time Frame: 1 year ] [ Designated as safety issue: No ]
  • Complications [ Time Frame: 3 month ] [ Designated as safety issue: Yes ]
  • Complications [ Time Frame: 1 year ] [ Designated as safety issue: Yes ]

Estimated Enrollment: 260
Study Start Date: September 2009
Estimated Study Completion Date: July 2016
Estimated Primary Completion Date: July 2015 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: SinglePort CCK
CCK using Triport
Procedure: Single Trocar CCK
CCK using Triport
Active Comparator: LS CCK
CCK using three or four trocars
Procedure: Standard CCK
CCK using three or four ports

Detailed Description:


  • Prospective Randomized Controlled trial
  • Population analysis based on Intention To Treat
  • Patient and data analyzer blinded (double-blind trial)

Outcomes observed:

  • Primary: pain
  • Secondaries: overall operative time, complication rate, cost-effectiveness analysis, cosmetic evaluation, quality of life, CO2 consumption

Nbr of patients included: 260

Port used: Triport, Olympus


Ages Eligible for Study:   18 Years to 75 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Cholecystolithiasis
  • Age 18 to 75 y.o.
  • BMI < 35

Exclusion Criteria:

  • Immunodeficiency
  • Choledocholithiasis
  • Previous upperGI open surgery
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00974194

Contact: Pierre Allemann, MD +41213147526

University Hospital of Lausanne Recruiting
Lausanne, Switzerland, 1011
Contact: Pierre Allemann, MD    +41213147526   
Principal Investigator: Pierre Allemann, MD         
Sub-Investigator: Adrien Tempia, MD         
Sub-Investigator: Nermin Halkic, MD, MER         
Sub-Investigator: Nicolas Demartines, MD, FACS         
Sponsors and Collaborators
University of Lausanne Hospitals
Principal Investigator: Pierre Allemann, MD CHV/CHUV
  More Information

Additional Information:
Responsible Party: Nicolas DEMARTINES, professor of surgery, University of Lausanne Hospitals Identifier: NCT00974194     History of Changes
Other Study ID Numbers: SPoCOT_2009 
Study First Received: September 8, 2009
Last Updated: December 3, 2014
Health Authority: Switzerland: Ethikkommission

Keywords provided by University of Lausanne Hospitals:
Laparoscopic surgery
Single port

Additional relevant MeSH terms:
Biliary Tract Diseases
Digestive System Diseases
Gallbladder Diseases
Pathological Conditions, Anatomical processed this record on May 30, 2016