Renal Denervation in Chronic Kidney Disease - RDN-CKD Study

Inclusion Criteria: * CKD stage 3 (eGFR 30-59 ml/min/1.73m² \[according to the currently used estimation formulas: MDRD, CKD-EPI\]) with diabetic or non-diabetic nephropathy * Uncontrolled hypertension with 1-5 drug classes (renin angiotensin system \[RAS\] blockade is mandatory, unless intolerance to RAS blockers has been documented) and systolic office (attended) BP ≥140 mmHg confirmed by 24-h ambulatory BP systolic ≥130 mmHg * Patient is adhering to a stable drug regimen including RAS blockade without changes for a minimum of 4 weeks. * Individual is ≥ 18 years of age, both genders are included Exclusion Criteria: * Anatomically significant renal artery abnormality in either renal artery which in the eyes of the interventionalist would interfere with safe catheter Placement * Other cause of Hypertension that can be treated by Intervention/surgery (e.g. hemodynamically relevant renal artery stenosis, functional adrenal adenoma) * Prior renal denervation procedure * Office (attended) BP ≥ 180 mmHg systolic and/or ≥ 110 mmHg diastolic * 24-h ambulatory BP ≥ 160 mmHg systolic * Anatomic or functional solitary kidney, kidney transplantation * Lack of capturing serum creatinine levels in the past * Secondary hypertension other than obstructive sleep apnea * Type 1 diabetes mellitus * Nephrotic syndrome * Contraindication to magnetic resonance imaging (MRI) * Individual has experienced a myocardial infarction, unstable angina pectoris, or a cerebrovascular accident within 3 mo…