Comparison of Early Operative Treatment and 48 h Conservative Treatment in Small Bowel Obstruction (COTACSO)

March 29, 2023 updated by: Alexander E. Tyagunov, Pirogov Russian National Research Medical University

Comparison of Early Operative Treatment (12 h) and 48 h Conservative Treatment in Acute Small Bowel Obstruction

This study will compare the results of early surgery after 12 h conservative treatment and 48 h conservative treatment of adhesive small bowel obstruction.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

At the admission patients undergo abdomen x-ray, general and biochemical blood test and computer tomography (CT). After exclusion of indications for an emergency operation, patients are given a water-soluble contrast. Conservative treatment is carring out to 12 hours from admission. All patients with resolution of small bowel obstruction in 12 hours will be excluded from the research. Criteria for obstruction release of conservative treatment 1. No pain 2. Appearance of gas in the colon 3. Decrease of bloating 4. Contrast in the colon. After that, if obstruction is not resolved, randomization is performed. First group undergo surgery. Second group undergo conservative treatment with water-soluble contrast evaluation until 48 hours. In the second group surgery is performed if the conservative treatment is not effective. The results of early and late surgery and the results of conservative treatment in groups will be compared.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
200

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.
  • Name: Alexander E Tyagunov, MD. Prof
  • Phone Number: +79165022324
  • Email: tyagunov1@mail.ru

Study Contact Backup

Study Locations

  • Russian Federation
      • Moscow, Russian Federation
        • Recruiting
        • Moscow Clinical Hospital 1
        • Contact:
        • Principal Investigator:
          • Igor Lebedev, PhD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

17 years to 80 years (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

Patients with adhesive small bowel obstruction

Exclusion Criteria:

Early postoperative small bowel obstruction Irreducible hernia Strangulation or peritonitis symptoms Impairment of consciousness Unstable hemodynamics

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: Early surgery
After exclusion of indications for an emergency operation, conservative treatment is performed up to 12 hours from the moment of admission. Each patient receive blood test, blood lactate investigation, blood biochemistry, X-ray of the abdomen, ultrasound and CT on the admission. Each patient receive water-soluble contrast in 3 h after admission. In case of of clinical and radiologic signs of obstruction in 12 h after admission, surgery is performed. On the first stage of surgical treatment laparoscopic adhesiolysis is performed. If it is impossible to eliminate the cause of obstruction by laparoscopic technique laparotomy is performed.
Procedure: Adhesiolysis

Method of video laparoscopic operation:

  • Open access in the left upper quadrant of the anterior abdominal wall,
  • Installation of trocars, depending on the prevalence of the adhesion process
  • Assessment of the peritoneal adhesion index
  • Detection of the asleep gut
  • Detection of obstacle area
  • Removing the obstacle without trying to completely eliminate the adhesion process in the abdominal cavity

If there is no possibility to eliminate the cause of intestinal obstruction laparoscopically laparotomy is performed.

Radiation: X-ray diagnostics
X-ray of the thoracic (1) and abdomen (2-5 times) with water soluble contrast.
Radiation: Computer tomography
Computer tomography of abdomen with iv contrast
Procedure: Ultrasound
Ultrasound of the abdomen (2 times)
Other: General and biochemical blood test
General blood test and biochemical blood test 2 times a day
Active Comparator: Late surgery
After exclusion of indications for an emergency operation, conservative treatment is performed up to 48 hours from the moment of admission. Each patient receive blood test, blood lactate investigation, blood biochemistry, X-ray of the abdomen, ultrasound and CT on the admission. Each patient receive water-soluble contrast 3 h after admission. In case of present of obstruction and absence of contrast in colon in 36 h after intake (48 h after admission) a surgery is perform. On the first stage of surgical treatment laparoscopic adhesiolysis is performed. If it is impossible to eliminate the cause of obstruction by laparoscopic technique laparotomy is performed.
Procedure: Adhesiolysis

Method of video laparoscopic operation:

  • Open access in the left upper quadrant of the anterior abdominal wall,
  • Installation of trocars, depending on the prevalence of the adhesion process
  • Assessment of the peritoneal adhesion index
  • Detection of the asleep gut
  • Detection of obstacle area
  • Removing the obstacle without trying to completely eliminate the adhesion process in the abdominal cavity

If there is no possibility to eliminate the cause of intestinal obstruction laparoscopically laparotomy is performed.

Radiation: X-ray diagnostics
X-ray of the thoracic (1) and abdomen (2-5 times) with water soluble contrast.
Radiation: Computer tomography
Computer tomography of abdomen with iv contrast
Procedure: Ultrasound
Ultrasound of the abdomen (2 times)
Other: General and biochemical blood test
General blood test and biochemical blood test 2 times a day

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Quantity of patients with obstruction release after conservative treatment
Time Frame: in the 2nd group - 48 hours
No of patients with success of conservative treatment
in the 2nd group - 48 hours

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Readmission rate in conservative treatment and surgery
Time Frame: 12 months
12 months readmission rate
12 months
30 days mortality
Time Frame: 30 days
Number of patients who has dead in 30 days after admission
30 days
Complications rate
Time Frame: 30 days
Number of complications rate in groups
30 days
Quantity of bowel resection
Time Frame: 156 hours
Number of patients who undergo bowel resection in groups
156 hours

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Pirogov Russian National Research Medical University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 11, 2017

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
April 30, 2024

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 31, 2024

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 30, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 2, 2017

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
May 3, 2017

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 30, 2023

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 29, 2023

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2023

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 14121729

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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