Systemic lupus erythematosis (SLE) is a chronic, most probably auto-immune multisystem disease marked by relapsing-remitting course and the formation of a range of autoantibodies. SLE patients present with serious renal (lupus nephritis (LN)), cardiopulmonary, or nervous manifestation. LN occurs in 40%-70% of SLE cases during the first 10 years of disease and is marked by the presence of proteinuria (hallmark). A novel class of medications had been extracted from phlorizin and indicated for the treatment of type 2 diabetes (T2D), referred to as Sodium glucose cotransporter 2 (SGLT-2) inhibitors. They act by decreasing glucose reabsorption in the proximal renal tubules (SGLT2). Previous studies proved that SGLT2 inhibitors resulted in decreased postprandial hyperglycemia, enhanced glycemic control, reduced body weight and blood pressure, and albuminuria in those with T2D. Large placebo-controlled trials such as Empagliflozin-Kidney (EMPA-Kidney) and Dapagliflozin in Patients with Chronic Kidney Disease (DAPA-CKD) trial demonstrated the efficacy of empagliflozin and dapagliflozin, respectively, in patients with chronic kidney disease (CKD) regardless the diabetic cause of CKD, compared to placebo. EMPA-Kidney with median 2.0 years of follow-up reported that empagliflozin (EMPA) significantly (P\<0.001) lowered (13.1%) the risk of progression of kidney disease and death from cardiovascular causes than placebo (16.9%). Together with, DAPA-CKD trial reported that the risk of a composite of a sustained decline in the estimated GFR of at least 50% was significantly (P\<0.001) lower in the DAPA group (9.2%) compared to placebo group (14.5%) over a median of 2.4 years of follow-up. However, such studies excluded lupus nephritis population from clinical trials. Consequently, an experimental study is conducted to test the hypothesis that SGLT2 inhibitor EMPA is superior to placebo in improving proteinuria and estimated glomerular filtration rate (eGFR) in a group of patients with established LN already receiving the usual standard care and treatment. The trial participants compatabile with the elgibility criteria will be randomly assigned to two groups. One group will take Empagliflozin 25 mg tablet each day along with the standard care therapy. The other group will take a matching placebo besides the usual standard care therapy during the clinical trial period. Study outcomes will be measured three times, one before starting the medical study, the second and third will be 6 and 12 weeks after starting the clinical study, respectively. After that, the statistical siginficance of values between both groups will be reported to test the credibilty of the hypothesis. The study is primarily designed to evaluate the reno-protective effect of EMPA on kidney function, in terms of urinary protein-creatinine ratio (uPCR)and eGFR. Empagliflozin efficacy testing in lupus nephritis population (EMPA-LN) is a prospective, randomized, triple-blinded, parallel-group, placebo controlled phase 4 trial recruiting 66 subjects. A 10% drop-out rate is anticipated based on the clinical opinion of the care provider. The study will be conducted in accordance with the declaration of Helsinki. An ethical approval will be provided from an ethics committee.
Age range
18 Years – 65 Years
Sex
ALL
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Urinary protein-creatinine ratio (UPCR)
Timeframe: From recruitment (week 0) to the end of treatment (week 12)
Estimated glomerular filtration rate (eGFR)
Timeframe: From recruitment (week 0) to the end of treatment (week 12)