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Table 1 Trial objectives and measurement methods (measured at time = 0 and after 26 weeks of treatment)

From: Study rationale and design of a study of EMPAgliflozin’s effects in patients with type 2 diabetes mellitus and Coronary ARtery disease: the EMPA-CARD randomized controlled trial

Objective

Definition

Primary

1. To investigate the impact of empagliflozin on plasma IL-6 level in patients with T2DM patients and coronary artery disease (established by coronary angiography)

Secondary

1. Inflammatory biomarkers

 Changes in serum hs-CRP levels

 Changes in plasma IL-1b levels

2. Oxidative stress status

 Changes in lymphocytic reactive oxygen species

 Changes in plasma levels of malondialdehyde

 Changes in plasma carbonyl levels

 Changes in plasma antioxidant capacity

 Changes in plasma reduced glutathione levels

 Changes in catalase enzyme activity

 Changes in plasma superoxide dismutase enzyme activity

3. Platelet function

 Changes in CD62-P expression on the platelet surface

4. Glycemic status

 Changes in fasting blood glucose levels

 Changes in HbA1c levels

 Changes in HOMA-IR

Additional secondary (Considered for sub-studies)

1. Changes is cardiac biomarkers

 Changes in serum hs-Troponin I levels

 Changes in serum BNP levels

 Changes in serum NT-proBNP levels

2. Echocardiographic parameters

 Changes in left ventricular systolic function

 Changes in left ventricular diastolic function

 Changes in right ventricular function

3. Hematopoietic status and renal function

 Changes in serum erythropoietin levels

 Changes in blood hematocrit levels

 Changes in hemoglobin levels

 Changes in urine micro albuminuria levels

4. Changes in lipid profile

 Changes in serum total cholesterol levels

 Changes in serum LDL cholesterol levels

 Changes in serum HDL cholesterol levels

 Changes in serum triglyceride levels

5. Electrocardiographic parameters

 Changes in PR interval duration

 Changes in QRS complex duration

 Changes in QT interval duration

 Changes in ST segment deviation

 Changes in T wave alternans

  1. IL-6 Interleukin 6, T2DM type 2 Diabetes mellitus, hs-CRP high sensitive, CRP C-reactive protein, IL-1b interleukin 1-beta, HbA1c glycated hemoglobin A1c, HOMA-IR Homeostatic Model Assessment for Insulin Resistance, hs-Troponin I high sensitive troponin I, BNP brain natriuretic peptide, NT-proBNP N-terminal pro-brain natriuretic peptide, LDL cholesterol low density lipoprotein cholesterol, HDL cholesterol high density lipoprotein cholesterol