Diabetes Mellitus, Type 2 Clinical Trial
Official title:
Open, Randomized, Unicenter Study Comparing Metabolic Surgery With Intensive Medical Therapy to Treat Diabetic Kidney Disease
Proven therapy for DKD is primarily limited to RAAS blockers and SLGT2i. Weight reduction has the potential to become an additional and much needed treatment option. Of all the weight reduction strategies metabolic surgery is suited to be the most effective. Yet no study has of yet compared the effect of metabolic surgery against best medical treatment on the progression of DKD. This pilot trial is designed to be the first determine the efficacy of metabolic surgery in slowing progression of DKD as compared to best medical therapy. The study design will address all the major limitations previously documented, including the major dilemma of estimating versus measuring GFR. Of note, the study's design will allow its sample size to be adjusted upward using an adaptive design if necessary, to achieve statistical significance. It will also inform study design and sample size issues for all future studies in this field. The payoff of establishing metabolic surgery as a new and effective intervention to slow progression to ESRD would be great in terms of reducing patient suffering and societal costs. This will be an open-label, randomized trial involving sixty (60) patients with diabetic kidney disease (DKD) and obesity who will undergo Roux-en-Y gastric bypass (RYGB) in the intervention arm or receive best medical treatment (BMT) in the control arm. The aim of this prospective, open, randomized study is to evaluate the efficacy and safety of RYGB surgery versus best medical treatment on the progression of DKD in patients with type 2 diabetes and obesity.
This will be an open-label, randomized trial involving sixty (60) patients with DKD and obesity who will undergo RYGB (intervention arm) or receive BMT (control arm). Thirty (30) obese patients with DKD will undergo gastric bypass. Patients will also receive standard of care medical therapy for DKD (ACEI or ARB + SGLT2i) and T2DM (metformin, glitazones, incretin therapy - DPP4 inhibitor and GLP-1 analogs - and insulin, if necessary). Other comorbidities, such as hypertension and dyslipidemia, will be treated according to the latest recommendations of the ADA. The surgical procedure will consist of a laparoscopic surgery performed by an experienced surgeon (approximately 6000 bariatric surgeries), who is accredited as surgeon of excellence by the Brazilian Society of Bariatric and Metabolic Surgery and Surgical Review and Surgical Review Corporation program since 2009. Thirty (30) obese patients with DKD will undergo best medical treatment for DKD (ACEI or ARB + SGLT2i) and T2DM (metformin, glitazones, incretin therapy - DPP4 inhibitor and GLP-1 analogs - and insulin, if necessary). Other comorbidities, such as hypertension and dyslipidemia, will be treated according to the latest recommendations of the ADA. Regarding medication therapy: Metformin will be maintained in the postoperative period while fasting glycemia is above 100 mg/dL unless contraindicated. Anti-antihypertensive drugs and medications for dyslipidemia will be maintained in the postoperative period, unless contraindicated. Micronutrient supplementation (vitamins and mineral salts) will be prescribed to all patients undergoing metabolic surgery. Patients allocated to the control group will receive the same supplementation if necessary. ;
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