Efficacy and Safety Study of Laparoscopic Roux-en-Y Gastric Bypass (LRYGB) to Treat Type 2 Diabetes Mellitus (ADSMT-1)

January 14, 2011 updated by: Asia Metabolic Surgery Research Group

Efficacy and Safety Study of LRYGB to Treat Type 2 Diabetes Mellitus

Type 2 diabetes mellitus (T2DM) resolution in morbidly obese patients following bariatric surgery suggests the efficacy of metabolic surgery in non-morbidly obese patients (body mass index [BMI]<35 kg/m2). Many researches have shown available evidence about the efficacy and safety of metabolic surgery for resolution of T2DM in the non-morbidly obese. One of the most effective metabolic surgeries is laparoscopic Roux-en-Y gastric bypass (LRYGB). The investigators intend to run a 3 year prospective multicenter study to evaluate the remission efficacy of laparoscopic Roux-en-Y gastric bypass in Type 2 Diabetes mellitus with low BMI (BMI:25-35) in Asia area.

Study Overview

Status

Status

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

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

The study is designed including 9 bariatric centers across Asia region( China, Korea, Phillipine, Singapore and Taiwan). Totally 500 patients with confirmed diagnosis of T2DM and BMI between 25-35 kg/m2 will be enrolled from January 2011 to December 2013. Preoperative surgical parameters, blood, biochemistry data, gastrointestinal hormones, upper gastrointestinal studies, abdominal ultrasound, peri-operative & postoperative complications will all be recorded and analyzed. Patient inclusion criteria: 1.) T2DM diagnosed over 1 year; 2.) age ranged 30-60 years; 3.) BMI 25-35 kg/m2; 4.) Patient consent and will to receive long-term follow up and periodic check up. Exclusion criteria: 1.) T1DM; 2.) Substance abuse; 3.) Planned pregnancy within 2 year after surgery; 3.) Uncontrolled psychiatric disease; 4.) Lost follow up. Institutions inclusion criteria: Professional experience over 30 LRYGB performed. Trial termination criteria: Surgical mortality over 0.5% in the first year, and Diabetes remission rate failure over 20% in one year.

All data will be collected yearly in one center. The analysis of parameter, statistics and brief results will be informed to enrolled institutions periodically.

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.
Observational

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.
500

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.

Study Locations

  • Taiwan
      • Kaohsiung, Taiwan, 824
        • BMI Surgery Center, E-DA Hospital

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

30 years to 60 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

500 type 2 diabetes mellitus patients with BMI between 25-35 kg/m2

Description

Inclusion Criteria:

  1. T2DM diagnosed over 1 year;
  2. Age ranged 30-60 years;
  3. BMI 25-35 kg/m2;
  4. Patient consent and will to receive long-term follow up and periodic check up.

Exclusion Criteria:

  1. T1DM;
  2. Substance abuse;
  3. Planned pregnancy within 2 year after surgery;
  4. Uncontrolled psychiatric disease;
  5. Lost follow up.

Institutions inclusion criteria: Professional experience over 30 LRYGB performed.

Trial termination criteria: Surgical mortality over 0.5% in the first year, and Diabetes remission rate failure over 20% in one year.

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

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
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.
Laparoscopic Roux-en-Y gastric bypass
Laparoscopic Roux-en-Y gastric bypass will be used as a standard procedure to treat type 2 diabetes mellitus
Procedure: Laparoscopic Roux en Y gastric Bypass
Laparoscopic Roux-en-Y gastric bypass will be used as a standard procedure to treat type 2 diabetes mellitus
Other Names:
  • LRYGB

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
Gastric Bypass in the Treatment of Type 2 Diabetes in Patients with a BMI of 25 to 35 kg/m2
Time Frame: 3 years (from 2011 to 2013)

An observational, prospective and multi-center study will be carry out with IRB approval. A total of 500 type 2 diabetes mellitus patients with low BMI (25-35 kg/m2) will be collected in different surgical institutions. Pre and post operative biochemical parameters will be collected at the 1st, 6th, 12th, 24th and 36th months. Comparative outcomes will support the relationship between diabetes improvement or remission and the surgical intervention.

Blood parameters: CBC, hs-CRP, SMA12, HbA1c, Fasting C-peptide, Insulin, OGTT,C-peptide and DM antibodies
3 years (from 2011 to 2013)

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.
Asia Metabolic Surgery Research Group

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
E-DA Hospital

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Chih-Kun Huang, Doctor, E-DA Hospital

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

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.
January 1, 2011

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.
January 1, 2012

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 1, 2013

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).
January 11, 2011

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.
January 14, 2011

First Posted (Estimate)

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.
January 17, 2011

Study Record Updates

Last Update Posted (Estimate)

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.
January 17, 2011

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.
January 14, 2011

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.
January 1, 2011

More Information

Terms related to this study

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.
  • ADSMT-1

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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