NCT02488733

Brief Summary

Bariatric surgery is efficient in both inducing adequate weight loss and the control of glycemia in obese patients affected by Type 2 Diabetes Mellitus (T2DM). Despite growing evidence suggesting that early performance of bariatric surgery on obese patients with T2DM offers the best opportunity to reach and maintain a remission of diabetes, no randomized clinical trials (RCT) have evaluated its efficiency in patients with new T2DM diagnosis. The aim of this RCT is to compare bariatric surgery, and in particular Laparoscopic Sleeve Gastrectomy (LSG), with conventional medical therapy (CMT) in patients with new T2DM diagnosis that are obese (Body Mass Index, BMI of between 30 and 42 Kg/m2), to be recruited at two Italian diabetology centres (Terni and Rome). The main objective of the present RCT is to investigate the efficacy of LSG as compared with CMT in inducing and maintaining both a resolution of T2DM (defined as HbA1c levels ≤6.0%, without active pharmacologic therapy or ongoing procedures) and the remission of T2DM through the evaluation of the criteria provided by the American Diabetes Association (ADA) at maximum follow-up of 6 years. The effects of the two treatments in terms of weight loss and the quality of life of the patient will also be taken into consideration. Any positive results of this study will include preventing microvascular and macrovascular complications connected with diabetes, without the necessity to take medication, and at the same time the loss of excess body weight and improved quality of life (QOL).

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
30

participants targeted

Target at P25-P50 for not_applicable type-2-diabetes-mellitus

Timeline
22mo left

Started Dec 2015

Longer than P75 for not_applicable type-2-diabetes-mellitus

Geographic Reach
1 country

2 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress85%
Dec 2015Mar 2028

First Submitted

Initial submission to the registry

June 30, 2015

Completed
2 days until next milestone

First Posted

Study publicly available on registry

July 2, 2015

Completed
5 months until next milestone

Study Start

First participant enrolled

December 1, 2015

Completed
12.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2028

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2028

Last Updated

January 26, 2026

Status Verified

January 1, 2026

Enrollment Period

12.3 years

First QC Date

June 30, 2015

Last Update Submit

January 23, 2026

Conditions

Keywords

type 2 diabetes mellitusobesitylaparoscopic sleeve gastrectomybariatric surgerymetabolic surgery

Outcome Measures

Primary Outcomes (1)

  • Rate of patients achieving diabetes resolution

    HbA1c levels ≤6.0%, without active pharmacologic therapy or ongoing procedures

    Assessed up to 1 year after randomization

Secondary Outcomes (18)

  • Rate of patients achieving diabetes resolution

    assessed at 2, 3, 4, 5 and 6 years after randomization

  • Rate of patients achieving diabetes complete remission (American Diabetes Association criteria)

    assessed at 2, 3, 4, 5, and 6 years after randomization

  • Rate of patients achieving HbA1c levels ≤6.5%,

    assessed at 1, 2, 3, 4, 5,and 6 years after randomization

  • Rate of patients achieving HbA1c levels ≤6.5%,

    assessed up at 1, 2, 3, 4, 5,and 6 years after randomization

  • Rate of patients achieving prolonged remission (American Diabetes Association criteria)

    Assessed up at 6 years after randomization

  • +13 more secondary outcomes

Study Arms (2)

Laparoscopic Sleeve Gastrectomy (LSG)

EXPERIMENTAL

In addition to conventional medical therapy, patients assigned to surgical treatment will undergo LSG, to be performed in accordance with current international guidelines.

Procedure: LSGDrug: CMT

Conventional medical therapy (CMT)

OTHER

CMT consists in the use of the best treatment strategies, involving pharmacological and dietary therapies, lifestyle and physical activity, with the aim of both glycemic control and weight loss.

Drug: CMT

Interventions

LSGPROCEDURE

In addition to all previously described aspects of conventional medical therapy, patients assigned to surgical treatment will undergo LSG, to be performed in accordance with current international guidelines

Laparoscopic Sleeve Gastrectomy (LSG)
CMTDRUG

CMT consists in the use of the best treatment strategies, involving pharmacological and dietary therapies, lifestyle and physical activity, with the aim of both glycemic control and weight loss, administered on the basis of the current guidelines of the American Diabetes Association (ADA)\[50\] and determined on an individual basis \[52\].The administration of such pharmacological and non-pharmacological therapies will be adjusted in accordance with the algorithms of the ADA .

Conventional medical therapy (CMT)Laparoscopic Sleeve Gastrectomy (LSG)

Eligibility Criteria

Age20 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • No contraindication for laparoscopic surgery or general anaesthesia.
  • Age ≥20 and ≤65 years.
  • BMI of between 30 and 42 kg/m2.
  • Documented new diagnosis of Type 2 Diabetes Mellitus obtained according to the following American Diabetes Association parameters: fasting blood glucose ≥ 126 mg/dl (7.0 mmol/l) and/or HbA1c ≥ 6.5% and no more than 8 months from enrollment in the study.

You may not qualify if:

  • Previous bariatric surgery or major abdominal surgery.
  • Patients with T2DM diagnosis treated with insulin.
  • Evidence of complications connected to diabetes at any stage (diabetic retinopathy, diabetic nephropathy/microalbuminuria, cardiovascular disease or neuropathy).
  • Cardiovascular diseases such as ischemia / coronary artery disease, arrhythmia, peripheral vascular diseases, congestive heart failure, history of heart attacks.
  • Kidney diseases including nephro-vascular hypertension, stenosis of the renal artery or chronic renal insufficiency.
  • Pregnancy
  • Diagnosis of psychiatric illness (including dementia, severe depression, history of suicide attempts) or abuse of alcohol or drugs in the previous 5 years.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Ospedale Sandro Pertini

Rome, Italy

Location

Azienda Ospedaliera Santa Maria

Terni, 05100, Italy

Location

Related Links

MeSH Terms

Conditions

Diabetes Mellitus, Type 2Obesity

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System DiseasesOverweightOvernutritionNutrition DisordersBody WeightSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Stefano Trastulli, MD

    Azienda Ospedaliera Santa Maria di Terni

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Azienda Ospedaliera Santa Maria, Terni, Italy

Study Record Dates

First Submitted

June 30, 2015

First Posted

July 2, 2015

Study Start

December 1, 2015

Primary Completion (Estimated)

March 1, 2028

Study Completion (Estimated)

March 1, 2028

Last Updated

January 26, 2026

Record last verified: 2026-01

Locations