Management of Elevated PTH in Secondary Hyperparathyroidism with CKD

Initial Assessment and Correction of Modifiable Factors

The National Kidney Foundation recommends targeting serum phosphorus 3.5-5.5 mg/dL in CKD stage 5 through dietary restriction and phosphate binders 2
The American Society of Nephrology suggests providing supplemental calcium carbonate 1-2 g three times daily with meals, which serves dual purpose as phosphate binder and calcium supplement 2
The Endocrine Society recommends repleting nutritional vitamin D with ergocalciferol 50,000 IU weekly for 12 weeks if <30 ng/mL, then monthly maintenance 2, 3

The Kidney Disease: Improving Global Outcomes (KDIGO) guidelines recommend reserving active vitamin D therapy for CKD stage 4-5 patients with severe and progressive hyperparathyroidism 1
The National Institute of Diabetes and Digestive and Kidney Diseases suggests monitoring PTH, calcium, and phosphorus every 3-6 months in CKD stage 3, every 3-6 months in stage 4, and every 1-3 months in stage 5 1
The American College of Physicians recommends targeting PTH range: 150-300 pg/mL in dialysis patients 1, 2

The National Kidney Foundation recommends monitoring calcium and phosphorus every 2 weeks for first month, then monthly for 3 months during active titration 2, 3
The American Society of Nephrology suggests monitoring PTH monthly for 3 months after initiation or dose adjustment 2, 3
The Endocrine Society recommends monitoring alkaline phosphatase every 3-6 months if PTH elevated 2

The Kidney Disease: Improving Global Outcomes (KDIGO) guidelines recommend never targeting normal PTH levels (<65 pg/mL) in dialysis patients—this causes adynamic bone disease with increased fracture risk and inability to buffer calcium-phosphate loads 2, 3
The National Institute of Diabetes and Digestive and Kidney Diseases suggests never starting active vitamin D therapy with phosphorus >4.6 mg/dL—this worsens vascular calcification and increases calcium-phosphate product 2, 3
The American College of Physicians recommends never using calcitriol or active vitamin D sterols to treat nutritional vitamin D deficiency—use ergocalciferol or cholecalciferol instead 3

The National Kidney Foundation recommends using dialysate calcium concentration between 1.25-1.50 mmol/L (2.5-3.0 mEq/L) in CKD stage 5D patients 1