Can a diabetes drug protect kidneys when they're barely working?

This study tests whether empagliflozin, a diabetes medicine, can reduce protein leakage in urine and help protect the kidneys in people with very advanced chronic kidney disease (eGFR between 10 and 20). About 34 adults with type 2 diabetes will take either empagliflozin or a placebo for 6 weeks each. The goal is to see if the drug still works to lower protein in urine even when kidney function is severely reduced.