NCT01821508

Brief Summary

This is a prospective, open, randomized study involving 100 patients with microvascular complications of type 2 diabetes mellitus and obesity, who will undergo gastric bypass (Roux-en-Y gastric bypass ARM A) or receive best medical treatment (ARM B, control arm). The aim of this study is to evaluate the effects of Roux-en-Y gastric bypass in the control of diabetic nephropathy in diabetic patients with BMI between 30 and 35 kg/m2. The medical community is confronted with many different studies using various methodologies to investigate the best pharmacological treatment for type 2 diabetes mellitus. The treatment algorithm offers several different options according to the stage of the disease (which is different in each study). In addition, new drugs are being developed over the years, but are not always a guarantee of effective type 2 diabetes mellitus control \[MENDES, 2010\]. Furthermore, these drugs do not prevent the development of this disease, consequently increasing the risks of microvascular and macrovascular complications. Conversely, there is considerable evidence that surgery can be an adequate tool to promote type 2 diabetes mellitus remission in patients who are unresponsive to clinical treatment. Gastric bypass surgery is one of the most popular bariatric surgeries in the world, but its effects on microvascular and macrovascular complications of type 2 diabetes mellitus have not been established. Specialists suggest that the rapid and uncontrollable decrease in blood glucose adds to the concern that the surgery may paradoxically cause exacerbation of microvascular complications \[LEOW, 2005\], whereas gradual improvement in blood glucose before gastric bypass surgery may prevent this paradoxical worsening, leading to an interruption of this process, or even retinopathy, nephropathy, and neuropathy remission. However, there are no studies comparing the results of these two types of treatment (clinical vs. surgical) in a similar population and assessing the development of microvascular complications of type 2 diabetes mellitus. Therefore, in order to clarify such doubts, it is necessary and extremely desirable to conduct a randomized controlled trial comparing gastric bypass with the best and most modern clinical treatment. Its findings could have a direct impact on hundreds of millions of diabetics by allowing the inclusion of surgical treatment as a safe and feasible therapeutic option for a significant portion of these patients.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
100

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Apr 2013

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

First Submitted

Initial submission to the registry

March 27, 2013

Completed
5 days until next milestone

First Posted

Study publicly available on registry

April 1, 2013

Completed
17 days until next milestone

Study Start

First participant enrolled

April 18, 2013

Completed
8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 29, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 29, 2021

Completed
Last Updated

May 28, 2021

Status Verified

May 1, 2021

Enrollment Period

8 years

First QC Date

March 27, 2013

Last Update Submit

May 27, 2021

Conditions

Keywords

Gastroplasty, Diabetes Mellitus Type II, Obesity

Outcome Measures

Primary Outcomes (1)

  • The primary endpoint will be the proportion of patients that present normalization of the albumin/creatinine ratio in isolated urine samples (normal value considered as an albumin/creatinine ratio of less than 30 μg/mg ).

    Number of participants achieving remission Titrating the relation of urinary albumin/creatinine

    12, 24 and 60 months

Secondary Outcomes (8)

  • Changes in diabetic retinopathy

    12, 24 and 60 months

  • Changes in diabetic peripheral neuropathy

    12, 24 and 60 months

  • Use of pharmacological therapy for type 2 diabetes mellitus

    12, 24 and 60 months

  • Glycemic control

    12, 24 and 60 months

  • Blood pressure control

    12, 24 and 60 months

  • +3 more secondary outcomes

Study Arms (2)

Clinical treatment

ACTIVE COMPARATOR

Best and most modern clinical treatment of type 2 diabetes mellitus.

Other: Clinical Treatment

Roux-En-Y gastric bypass surgery

ACTIVE COMPARATOR

A "metabolic" surgery consists of any surgical procedure in which there is any anatomical alteration in the gastrointestinal tract by means of a diversion of food passage, resulting in improved metabolic control in patients with type 2 diabetes mellitus \[SCHULMAN, 2009\].

Procedure: Roux-En-Y gastric bypass surgery

Interventions

metabolic surgery for diabetes and weight control

Also known as: lifestyle changes for obesity
Clinical treatment

laparoscopic surgical procedure with Endoscopic Surgical Stapler

Roux-En-Y gastric bypass surgery

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male and female adult patients with microalbuminuria (more than 30 mg and less than 300 mg or more of urinary albumin per 24 hours), with or without other microvascular complications of type 2 diabetes mellitus, receiving pharmacological treatment for the disease, which may or may not include the use of insulin.
  • Age between 18-65 years
  • BMI between 30 and 35 Kg/m2
  • year or less after type 2 diabetes mellitus diagnosis
  • Negative anti-glutamic acid decarboxylase
  • Fasting C-peptide higher than 1 ng/ml, increasing in the postprandial period (two hours after mixed meal, ENSURE plus approximately 500 Kcal)

You may not qualify if:

  • Patient's refusal to participate
  • Autoimmune diabetes mellitus
  • Previous abdominal surgeries that may make surgery more difficult, increasing the surgical risk
  • Previous malabsorptive and restrictive surgeries
  • Pregnant women and nursing mothers
  • Recent history of neoplasia (\< 5 years), except for non-melanoma skin neoplasms
  • History of liver disease - liver cirrhosis -, active chronic hepatitis, active hepatitis B and hepatitis C
  • Malabsorptive syndromes and inflammatory bowel disease
  • Cardiovascular event (acute myocardial infarction, acute coronary syndrome, angioplasty, or bypass in the last 6 months)
  • Angina
  • Pulmonary embolism or severe thrombophlebitis in the last 2 years
  • Positive HIV serum testing
  • Psychiatric disorders, including dementia, active psychosis, severe depression, history of suicide attempts, use of illicit drugs, and excessive alcohol consumption in the last 12 months
  • Uncontrolled coagulopathy
  • Patients with severe retinopathy, nephropathy, and neuropathy (defined as high risk/advanced proliferative retinopathy or amaurosis; stage 5 of chronic kidney disease defined by glomerular filtration rate, patients who need dialysis or renal transplantation; stage 3 of peripheral neuropathy)
  • +1 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hospital Alemão Oswaldo Cruz

São Paulo, 01323-020, Brazil

Location

Related Publications (3)

  • Cohen RV, Pereira TV, Aboud CM, Zanata Petry TB, Lopes Correa JL, Schiavon CA, Pompilio CE, Quirino Pechy FN, Calmon da Costa Silva AC, Cunha da Silveira LP, Paulo de Paris Caravatto P, Halpern H, de Lima Jacy Monteiro F, da Costa Martins B, Kuga R, Sarian Palumbo TM, Friedman AN, le Roux CW. Gastric bypass versus best medical treatment for diabetic kidney disease: 5 years follow up of a single-centre open label randomised controlled trial. EClinicalMedicine. 2022 Nov 11;53:101725. doi: 10.1016/j.eclinm.2022.101725. eCollection 2022 Nov.

  • Cohen RV, Pereira TV, Aboud CM, Petry TBZ, Lopes Correa JL, Schiavon CA, Pompilio CE, Pechy FNQ, da Costa Silva ACC, de Melo FLG, Cunha da Silveira LP, de Paris Caravatto PP, Halpern H, Monteiro FLJ, da Costa Martins B, Kuga R, Palumbo TMS, Docherty NG, le Roux CW. Effect of Gastric Bypass vs Best Medical Treatment on Early-Stage Chronic Kidney Disease in Patients With Type 2 Diabetes and Obesity: A Randomized Clinical Trial. JAMA Surg. 2020 Aug 1;155(8):e200420. doi: 10.1001/jamasurg.2020.0420. Epub 2020 Aug 19.

  • Cohen RV, Pereira TV, Aboud CM, Caravatto PP, Petry TB, Correa JL, Schiavon CA, Correa M, Pompilio CE, Pechy FN, le Roux CW; MOMS Study Investigators. Microvascular Outcomes after Metabolic Surgery (MOMS) in patients with type 2 diabetes mellitus and class I obesity: rationale and design for a randomised controlled trial. BMJ Open. 2017 Jan 11;7(1):e013574. doi: 10.1136/bmjopen-2016-013574.

MeSH Terms

Conditions

Diabetes ComplicationsDiabetes Mellitus, Type 2Obesity

Interventions

Adiposity

Condition Hierarchy (Ancestors)

Diabetes MellitusEndocrine System DiseasesGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesOverweightOvernutritionNutrition DisordersBody WeightSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Body Fat DistributionBody Weights and MeasuresBody ConstitutionPhysical ExaminationDiagnostic Techniques and ProceduresDiagnosisBody CompositionBiochemical PhenomenaChemical PhenomenaMetabolismPhysiological Phenomena

Study Officials

  • Ricardo V Cohen, MD. PhD

    Hospital Alemão Oswaldo Cruz

    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
MD, PhD

Study Record Dates

First Submitted

March 27, 2013

First Posted

April 1, 2013

Study Start

April 18, 2013

Primary Completion

April 29, 2021

Study Completion

April 29, 2021

Last Updated

May 28, 2021

Record last verified: 2021-05

Locations