Published online Nov 26, 2021. doi: 10.12998/wjcc.v9.i33.10172
Peer-review started: July 7, 2021
First decision: July 26, 2021
Revised: August 12, 2021
Accepted: October 14, 2021
Article in press: October 14, 2021
Published online: November 26, 2021
Processing time: 138 Days and 0.1 Hours
Secondary hyperparathyroidism (SHPT) is a common complication in patients with end-stage renal disease. SHPT is a component of chronic kidney disease-mineral and bone disorder, which is featured by increased fibroblast growth factor 23 and serum parathyroid hormone concentrations, decreased 1,25(OH)2 vitamin D concentrations and abnormal serum phosphate and calcium concentrations.
The long-term use of vitamin D receptor activators (VDRAs) may enhance the intestinal absorption of calcium and phosphorus and tubular reabsorption, leading to an increase in serum levels of calcium and phosphorus and risk of vascular calcification. But Paricalcitol mildly affects intestinal calcium and phosphorus absorption. Paricalcitol may be better than VDRAs in this aspect.
This study aimed to discuss the outcome, safety and other potential benefits of paricalcitol injection in hemodialysis patients with SHPT.
Total 40 patients who received hemodialysis for chronic renal failure with SHPT received paricalcitol injection for 24 wk, three times per week. The primary outcome indicator was the percentage of patients with a > 30% decrease in intact parathyroid hormone (iPTH) levels at week 24 compared with the baseline.
After 24 wk of treatment, iPTH levels decreased significantly. More than 30% decrease of iPTH was found in 21 of 36 (58.33%) patients. The average decrease in iPTH levels was 32.16 ± 4.33%; the standard-reaching rate of iPTH levels was 66.67% (24/36); and alkaline phosphatase levels decreased significantly compared with the baseline. There were no significant differences in the serum levels of calcium, hemoglobin, creatinine and C-reactive protein compared with the baseline.
This study suggested that the paricalcitol was a safe and effective treatment for hemodialysis patients with SHPT.
Multicenter studies with a larger sample size will be performed to provide evidence for the clinical use of paricalcitol.