Two Hypoabsorption Techniques for the Treatment of Type III Obesity (OASIS) (OASIS)

July 10, 2023 updated by: Consorci Sanitari Integral

Randomized Prospective Study Comparing Two Hypoabsorption Techniques for the Treatment of Type III Obesity (Body Mass Index Between 45 - 49.9 Kg/m2): Single Anastomose Duodenal Switch (SADI-S) and Single Anastomose Gastric By-pass (OAGBP)

This study aims to compare the percentage of total weight lost in long-term follow-up after two surgical interventions (SADIS and OAGB) in patients with morbid obesity BMI between 45-49.9.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet 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.

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 (Estimated)

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.
96

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.

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

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Patients over 18 and under 65 who meet criteria for bariatric surgery.
  • Maximum BMI between 45 and 50 kg/m2 and indication for surgery in a time
  • Signature of the informed consent of the study
  • Patients suitable for laparoscopic surgery

Exclusion Criteria:

  • Previous bariatric surgery
  • 2-stage surgery
  • Contraindication for hypoabsorptive surgery due to previous pathology: inflammatory bowel disease, transplant recipient or transplant candidate, previous intestinal resection surgery
  • Other associated surgical procedures in the same intervention.
  • Conversion to laparotomy

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: Single

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.
Experimental: Group A: SADI-S
SINGLE ANASTOMOSE DUODENAL SWITCH
Procedure: metabolic surgery (SADIS and OAGB)
TWO HYPOABSORPTION TECHNIQUES FOR THE TREATMENT OF TYPE III OBESITY (BODY MASS INDEX BETWEEN 45 - 49.9 KG/M2): SINGLE ANASTOMOSE DUODENAL SWITCH (SADI-S) AND SINGLE ANASTOMOSE GASTRIC BY-PASS (OAGBP).
Active Comparator: Group B: OAGB
SINGLE ANASTOMOSE GASTRIC BY-PASS
Procedure: metabolic surgery (SADIS and OAGB)
TWO HYPOABSORPTION TECHNIQUES FOR THE TREATMENT OF TYPE III OBESITY (BODY MASS INDEX BETWEEN 45 - 49.9 KG/M2): SINGLE ANASTOMOSE DUODENAL SWITCH (SADI-S) AND SINGLE ANASTOMOSE GASTRIC BY-PASS (OAGBP).

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
Time Frame
the percentage of total weight loss (%TWL) of the patients after surgery
Time Frame: Baseline, 1 year, 3 year, 5 year after SADI-S and OAGBP surgery
Baseline, 1 year, 3 year, 5 year after SADI-S and OAGBP surgery

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
% of patients with gastroesophageal reflux (acid and bile) after surgery
Time Frame: 1 year, 3 year, 5 year after SADI-S and OAGBP surgery
1 year, 3 year, 5 year after SADI-S and OAGBP surgery
Number of deaths in the immediate postoperative period
Time Frame: up to day 90 post-intervention
up to day 90 post-intervention
Number of Participants with complications in the immediate postoperative period
Time Frame: up to day 90 post-intervention
up to day 90 post-intervention
Ratio of patients with more than 3 loose stools per day
Time Frame: 1 year, 3 years, 5 years after the surgery
The ratio of patients with more than 3 loose stools per day will be evaluated as pathological. To assess the quality of the bowel movements, the Bristol Stool Form Scale questionnaire will be used. An evaluation of the number of bowel movements and their quality according to the Bristol Stool Form Scale questionnaire will be conducted at 1 year, 3 years, and 5 years after the surgery
1 year, 3 years, 5 years after the surgery
questionnaire of quality of life
Time Frame: 1 year, 3 years, 5 years after SADI-S and OAGBP surgery

The quality of life will be assessed based on the results of the Moorehead-Ardelt II test and the Medical Outcomes Study Short Form-36 questionnaire. The Moorehead-Ardelt II questionnaire includes 6 parameters related to self-esteem, physical activity, social contact, job satisfaction, sexual pleasure, and eating habits. The minimum score is -3 and the maximum is +3. A score of 1.1 to 2 is considered a good result, and anything above 2.1 is considered very good.

The SF-36 questionnaire includes 8 parameters such as physical functioning, physical role, bodily pain, general health, vitality, social functioning, emotional role, and mental health. The minimum score is 0 and the maximum is 100.
1 year, 3 years, 5 years after SADI-S and OAGBP surgery
Number of patients with nutritional deficiencies
Time Frame: 1 year, 3 years, 5 years after SADI-S and OAGBP surgery

The main nutritional deficiencies to be evaluated after OAGB (One Anastomosis Gastric Bypass) and SADIS (Single Anastomosis Duodeno-Ileal Switch) are iron and/or vitamin B12 deficiency anemia, deficiencies in fat-soluble vitamins, calcium, and trace elements.

The incidence of nutritional deficiencies will be assessed through routine blood tests at 1 year, 3 years, and 5 years after the surgery
1 year, 3 years, 5 years after SADI-S and OAGBP surgery

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.
Consorci Sanitari Integral

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 (Estimated)

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.
July 1, 2023

Primary Completion (Estimated)

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.
July 1, 2024

Study Completion (Estimated)

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.
July 1, 2029

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).
June 12, 2023

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.
July 10, 2023

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.
July 17, 2023

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.
July 17, 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.
July 10, 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.
July 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.
  • 23/001

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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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