Comparison of Usage Patterns and Outcomes by Dual Type Calcium Channel Blockers in Patients with Chronic Kidney Disease
	    		
		   		
		   			
		   		
	    	
    	 
    	10.24304/kjcp.2020.30.4.259
   		
        
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Mi Ran OH
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Hye Lim AHN
			        		
			        		;
		        		
		        		
		        		
			        		Sun CHOI
			        		
			        		;
		        		
		        		
		        		
			        		Hyen Oh LA
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. Department of Pharmacy, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul 06591, Republic of Korea
			        		
		        		
	        		
        		 
        	
        	
        	
        		- Publication Type:Original Article
 
        	
        	
            
            
            	- From:Korean Journal of Clinical Pharmacy
	            		
	            		 2020;30(4):259-263
	            	
            	
 
            
            
            	- CountryRepublic of Korea
 
            
            
            	- Language:English
 
            
            
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		        	Abstract:
			       	
			       		
				        
				        	Background:Dual-type calcium channel blockers (CCBs), such as efonidipine and cilnidipine, are renoprotective drugs that reportedly reduce proteinuria by dilating afferent and efferent arterioles of the glomerulus. However, studies comparing the effect of dual-type CCB on proteinuria have not been conducted. Therefore, we aimed to compare the effect of dual-type CCB (efonidipine and cilnidipine) usage patterns in hypertensive patients with chronic kidney disease (CKD). 
				        	
				        
				        	Methods:This single-center, retrospective study included 53 patients with CKD who 1) initiated efonidipine or cilnidipine treatment while on a renin-angiotensin system inhibitor and 2) had received efonidipine or cilnidipine for at least one year. We compared usage patterns between the efonidipine and cilnidipine groups during the one-year period and analyzed the following outcomes: urinary protein-to-creatinine ratio, blood pressure, and serum creatinine. 
				        	
				        
				        	Results:The study included 25 patients in the efonidipine group and 28 patients in the cilnidipine group. In both groups, blood pressure and urinary protein-to-creatinine ratios tended to decrease; however, the change during each interval was not significant. 
				        	
				        
				        	Conclusions:In patients with CKD who were on renin-angiotensin system inhibitor therapy, the addition of a dual-type CCB (i.e., efonidipine or cilnidipine) tended to reduce proteinuria; however, the change during each interval was not significant.