1.A Real-World, Prospective, Observational Study of Rivaroxaban on Prevention of Stroke and Non-Central Nervous Systemic Embolism in Renally Impaired Korean Patients With Non-Valvular Atrial Fibrillation:XARENAL
Il-Young OH ; Chang Hoon LEE ; Eue-Keun CHOI ; Hong Euy LIM ; Yong-Seog OH ; Jong-Il CHOI ; Min-Soo AHN ; Ju Youn KIM ; Nam-Ho KIM ; Namsik YOON ; Martin SANDMANN ; Kee-Joon CHOI
Korean Circulation Journal 2025;55(2):121-131
		                        		
		                        			 Background and Objectives:
		                        			Several real-world studies have been done in patients with nonvalvular atrial fibrillation (NVAF); however, information on its safety profile in patients with renal impairment is limited. XARENAL, a real-world study, aimed to prospectively investigate the safety profile of rivaroxaban in patients with NVAF with renal impairment (creatinine clearance [CrCl], 15–49 mL/min). 
		                        		
		                        			Methods:
		                        			XARENAL is an observational single-arm cohort study in renal impairment NVAF patients. Patients were followed up approximately every 3 months for 1 year or until 30 days following early discontinuation. The primary endpoint was major bleeding events. All adverse events, symptomatic thromboembolic events, treatment duration, and renal function change from baseline were the secondary endpoints. 
		                        		
		                        			Results:
		                        			XARENAL included 888 patients from 29 study sites. Overall, 713 (80.3%) had moderate renal impairment (CrCl, 30–49 mL/min), and 175 (19.7%) had severe renal impairment (CrCl, 15–29 mL/min) with a mean estimated glomerular filtration rate (eGFR) of 45.2±13.0 mL/min/1.73 m 2 . The mean risk scores were 3.3±1.4 and 1.7±0.9 for CHA 2 DS 2 -VASc score and HAS-BLED score, respectively. An incidence proportion of 5.6% (6.2 events per 100 patient-years) developed major bleeding; however, fatal bleeding occurred in 0.5% (0.5 events per 100 patient-years). The mean change in the eGFR was 2.22±26.47 mL/min/1.73 m 2 per year. 
		                        		
		                        			Conclusions
		                        			XARENAL observed no meaningful differences in major bleeding events from other previous findings as well as renal function changes in rivaroxaban-treated NVAF patients with renal impairment, which is considered to be acceptable in clinical practice. 
		                        		
		                        		
		                        		
		                        	
2.Study Design and Protocol for a Randomized Controlled Trial of Enavogliflozin to Evaluate Cardiorenal Outcomes in Type 2 Diabetes (ENVELOP)
Nam Hoon KIM ; Soo LIM ; In-Kyung JEONG ; Eun-Jung RHEE ; Jun Sung MOON ; Ohk-Hyun RYU ; Hyuk-Sang KWON ; Jong Chul WON ; Sang Soo KIM ; Sang Yong KIM ; Bon Jeong KU ; Heung Yong JIN ; Sin Gon KIM ; Bong-Soo CHA ;
Diabetes & Metabolism Journal 2025;49(2):225-234
		                        		
		                        			 Background:
		                        			The novel sodium-glucose cotransporter-2 (SGLT2) inhibitor enavogliflozin effectively lowers glycosylated hemoglobin levels and body weights without the increased risk of serious adverse events; however, the long-term clinical benefits of enavogliflozin in terms of cardiovascular and renal outcomes have not been investigated. 
		                        		
		                        			Methods:
		                        			This study is an investigator-initiated, multicenter, randomized, pragmatic, open-label, active-controlled, non-inferiority trial. Eligible participants are adults (aged ≥19 years) with type 2 diabetes mellitus (T2DM) who have a history of, or are at risk of, cardiovascular disease. A total of 2,862 participants will be randomly assigned to receive either enavogliflozin or other SGLT2 inhibitors with proven cardiorenal benefits, such as dapagliflozin or empagliflozin. The primary endpoint is the time to the first occurrence of a composite of major adverse cardiovascular or renal events (Clinical Research Information Service registration number: KCT0009243). 
		                        		
		                        			Conclusion
		                        			This trial will determine whether enavogliflozin is non-inferior to dapagliflozin or empagliflozin in terms of cardiorenal outcomes in patients with T2DM and cardiovascular risk factors. This study will elucidate the role of enavogliflozin in preventing vascular complications in patients with T2DM. 
		                        		
		                        		
		                        		
		                        	
3.Predicting Mortality and Cirrhosis-Related Complications with MELD3.0: A Multicenter Cohort Analysis
Jihye LIM ; Ji Hoon KIM ; Ahlim LEE ; Ji Won HAN ; Soon Kyu LEE ; Hyun YANG ; Heechul NAM ; Hae Lim LEE ; Do Seon SONG ; Sung Won LEE ; Hee Yeon KIM ; Jung Hyun KWON ; Chang Wook KIM ; U Im CHANG ; Soon Woo NAM ; Seok-Hwan KIM ; Pil Soo SUNG ; Jeong Won JANG ; Si Hyun BAE ; Jong Young CHOI ; Seung Kew YOON ; Myeong Jun SONG
Gut and Liver 2025;19(3):427-437
		                        		
		                        			 Background/Aims:
		                        			This study aimed to evaluate the performance of the Model for End-Stage Liver Disease (MELD) 3.0 for predicting mortality and liver-related complications compared with the Child-Pugh classification, albumin-bilirubin (ALBI) grade, the MELD, and the MELD sodium (MELDNa) score. 
		                        		
		                        			Methods:
		                        			We evaluated a multicenter retrospective cohort of incorporated patients with cirrhosis between 2013 and 2019. We conducted comparisons of the area under the receiver operating characteristic curve (AUROC) of the MELD3.0 and other models for predicting 3-month mortality. Additionally, we assessed the risk of cirrhosis-related complications according to the MELD3.0 score. 
		                        		
		                        			Results:
		                        			A total of 3,314 patients were included. The mean age was 55.9±11.3 years, and 70.2% of the patients were male. Within the initial 3 months, 220 patients (6.6%) died, and the MELD3.0had the best predictive performance among the tested models, with an AUROC of 0.851, outperforming the Child-Pugh classification, ALBI grade, MELD, and MELDNa. A high MELD3.0score was associated with an increased risk of mortality. Compared with that of the group with a MELD3.0 score <10 points, the adjusted hazard ratio of the group with a score of 10–20 pointswas 2.176, and that for the group with a score of ≥20 points was 4.892. Each 1-point increase inthe MELD3.0 score increased the risk of cirrhosis-related complications by 1.033-fold. The risk of hepatorenal syndrome showed the highest increase, with an adjusted hazard ratio of 1.149, followed by hepatic encephalopathy and ascites. 
		                        		
		                        			Conclusions
		                        			The MELD3.0 demonstrated robust prognostic performance in predicting mortality in patients with cirrhosis. Moreover, the MELD3.0 score was linked to cirrhosis-related complications, particularly those involving kidney function, such as hepatorenal syndrome and ascites. 
		                        		
		                        		
		                        		
		                        	
4.A Real-World, Prospective, Observational Study of Rivaroxaban on Prevention of Stroke and Non-Central Nervous Systemic Embolism in Renally Impaired Korean Patients With Non-Valvular Atrial Fibrillation:XARENAL
Il-Young OH ; Chang Hoon LEE ; Eue-Keun CHOI ; Hong Euy LIM ; Yong-Seog OH ; Jong-Il CHOI ; Min-Soo AHN ; Ju Youn KIM ; Nam-Ho KIM ; Namsik YOON ; Martin SANDMANN ; Kee-Joon CHOI
Korean Circulation Journal 2025;55(2):121-131
		                        		
		                        			 Background and Objectives:
		                        			Several real-world studies have been done in patients with nonvalvular atrial fibrillation (NVAF); however, information on its safety profile in patients with renal impairment is limited. XARENAL, a real-world study, aimed to prospectively investigate the safety profile of rivaroxaban in patients with NVAF with renal impairment (creatinine clearance [CrCl], 15–49 mL/min). 
		                        		
		                        			Methods:
		                        			XARENAL is an observational single-arm cohort study in renal impairment NVAF patients. Patients were followed up approximately every 3 months for 1 year or until 30 days following early discontinuation. The primary endpoint was major bleeding events. All adverse events, symptomatic thromboembolic events, treatment duration, and renal function change from baseline were the secondary endpoints. 
		                        		
		                        			Results:
		                        			XARENAL included 888 patients from 29 study sites. Overall, 713 (80.3%) had moderate renal impairment (CrCl, 30–49 mL/min), and 175 (19.7%) had severe renal impairment (CrCl, 15–29 mL/min) with a mean estimated glomerular filtration rate (eGFR) of 45.2±13.0 mL/min/1.73 m 2 . The mean risk scores were 3.3±1.4 and 1.7±0.9 for CHA 2 DS 2 -VASc score and HAS-BLED score, respectively. An incidence proportion of 5.6% (6.2 events per 100 patient-years) developed major bleeding; however, fatal bleeding occurred in 0.5% (0.5 events per 100 patient-years). The mean change in the eGFR was 2.22±26.47 mL/min/1.73 m 2 per year. 
		                        		
		                        			Conclusions
		                        			XARENAL observed no meaningful differences in major bleeding events from other previous findings as well as renal function changes in rivaroxaban-treated NVAF patients with renal impairment, which is considered to be acceptable in clinical practice. 
		                        		
		                        		
		                        		
		                        	
5.Phenotype of Relapsing Myelin Oligodendrocyte Glycoprotein Antibody-Associated Disease in Children
Ji Yeon HAN ; Soo Yeon KIM ; Woojoong KIM ; Hunmin KIM ; Anna CHO ; Jieun CHOI ; Jong-Hee CHAE ; Ki Joong KIM ; Young Se KWON ; Il Han YOO ; Byung Chan LIM
Journal of Clinical Neurology 2025;21(1):65-73
		                        		
		                        			 Background:
		                        			and Purpose To determine the clinical phenotypes, relapse timing, treatment responses, and outcomes of children with relapsing myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD). 
		                        		
		                        			Methods:
		                        			We collected the demographic, clinical, laboratory, and radiological data of patients aged <18 years who had been diagnosed with MOGAD at Seoul National University Children’s Hospital between January 2010 and January 2022; 100 were identified as positive for MOG antibodies, 43 of whom experienced relapse. 
		                        		
		                        			Results:
		                        			The median age at onset was 7 years (range 2–16 years). The median number of relapses was 2 (range 1–8), and patients were followed up for a median of 65 months (range 5–214 months). The first relapse was experienced before 3 months from onset by 15 patients (34.9%). The most-common initial phenotypes were acute disseminated encephalomyelitis (n=17, 39.5%) and optic neuritis (ON; n=11, 25.6%). The most-common relapse phenotypes were neuromyelitis optica spectrum disorder (n=9, 20.9%), relapsing ON (n=6, 14.0%), and multiphasic disseminated encephalomyelitis (n=6, 14.0%). Many of the patients (n=18, 41.9%) were not specifically categorized. A high proportion of these patients had non-acute disseminated encephalomyelitis encephalitis. Atypical phenotypes such as prolonged fever or hemiplegic migraine-like episodes were also noted. Mycophenolate mofetil and cyclic immunoglobulin treatment significantly reduced the annual relapse rates. 
		                        		
		                        			Conclusions
		                        			Our 43 pediatric patients with relapsing MOGAD showed a tendency toward early relapse and various relapse phenotypes. The overall prognoses of these patients were good regardless of phenotype or response to second-line immunosuppressant treatment. 
		                        		
		                        		
		                        		
		                        	
6.Study Design and Protocol for a Randomized Controlled Trial of Enavogliflozin to Evaluate Cardiorenal Outcomes in Type 2 Diabetes (ENVELOP)
Nam Hoon KIM ; Soo LIM ; In-Kyung JEONG ; Eun-Jung RHEE ; Jun Sung MOON ; Ohk-Hyun RYU ; Hyuk-Sang KWON ; Jong Chul WON ; Sang Soo KIM ; Sang Yong KIM ; Bon Jeong KU ; Heung Yong JIN ; Sin Gon KIM ; Bong-Soo CHA ;
Diabetes & Metabolism Journal 2025;49(2):225-234
		                        		
		                        			 Background:
		                        			The novel sodium-glucose cotransporter-2 (SGLT2) inhibitor enavogliflozin effectively lowers glycosylated hemoglobin levels and body weights without the increased risk of serious adverse events; however, the long-term clinical benefits of enavogliflozin in terms of cardiovascular and renal outcomes have not been investigated. 
		                        		
		                        			Methods:
		                        			This study is an investigator-initiated, multicenter, randomized, pragmatic, open-label, active-controlled, non-inferiority trial. Eligible participants are adults (aged ≥19 years) with type 2 diabetes mellitus (T2DM) who have a history of, or are at risk of, cardiovascular disease. A total of 2,862 participants will be randomly assigned to receive either enavogliflozin or other SGLT2 inhibitors with proven cardiorenal benefits, such as dapagliflozin or empagliflozin. The primary endpoint is the time to the first occurrence of a composite of major adverse cardiovascular or renal events (Clinical Research Information Service registration number: KCT0009243). 
		                        		
		                        			Conclusion
		                        			This trial will determine whether enavogliflozin is non-inferior to dapagliflozin or empagliflozin in terms of cardiorenal outcomes in patients with T2DM and cardiovascular risk factors. This study will elucidate the role of enavogliflozin in preventing vascular complications in patients with T2DM. 
		                        		
		                        		
		                        		
		                        	
7.Predicting Mortality and Cirrhosis-Related Complications with MELD3.0: A Multicenter Cohort Analysis
Jihye LIM ; Ji Hoon KIM ; Ahlim LEE ; Ji Won HAN ; Soon Kyu LEE ; Hyun YANG ; Heechul NAM ; Hae Lim LEE ; Do Seon SONG ; Sung Won LEE ; Hee Yeon KIM ; Jung Hyun KWON ; Chang Wook KIM ; U Im CHANG ; Soon Woo NAM ; Seok-Hwan KIM ; Pil Soo SUNG ; Jeong Won JANG ; Si Hyun BAE ; Jong Young CHOI ; Seung Kew YOON ; Myeong Jun SONG
Gut and Liver 2025;19(3):427-437
		                        		
		                        			 Background/Aims:
		                        			This study aimed to evaluate the performance of the Model for End-Stage Liver Disease (MELD) 3.0 for predicting mortality and liver-related complications compared with the Child-Pugh classification, albumin-bilirubin (ALBI) grade, the MELD, and the MELD sodium (MELDNa) score. 
		                        		
		                        			Methods:
		                        			We evaluated a multicenter retrospective cohort of incorporated patients with cirrhosis between 2013 and 2019. We conducted comparisons of the area under the receiver operating characteristic curve (AUROC) of the MELD3.0 and other models for predicting 3-month mortality. Additionally, we assessed the risk of cirrhosis-related complications according to the MELD3.0 score. 
		                        		
		                        			Results:
		                        			A total of 3,314 patients were included. The mean age was 55.9±11.3 years, and 70.2% of the patients were male. Within the initial 3 months, 220 patients (6.6%) died, and the MELD3.0had the best predictive performance among the tested models, with an AUROC of 0.851, outperforming the Child-Pugh classification, ALBI grade, MELD, and MELDNa. A high MELD3.0score was associated with an increased risk of mortality. Compared with that of the group with a MELD3.0 score <10 points, the adjusted hazard ratio of the group with a score of 10–20 pointswas 2.176, and that for the group with a score of ≥20 points was 4.892. Each 1-point increase inthe MELD3.0 score increased the risk of cirrhosis-related complications by 1.033-fold. The risk of hepatorenal syndrome showed the highest increase, with an adjusted hazard ratio of 1.149, followed by hepatic encephalopathy and ascites. 
		                        		
		                        			Conclusions
		                        			The MELD3.0 demonstrated robust prognostic performance in predicting mortality in patients with cirrhosis. Moreover, the MELD3.0 score was linked to cirrhosis-related complications, particularly those involving kidney function, such as hepatorenal syndrome and ascites. 
		                        		
		                        		
		                        		
		                        	
8.Study Design and Protocol for a Randomized Controlled Trial of Enavogliflozin to Evaluate Cardiorenal Outcomes in Type 2 Diabetes (ENVELOP)
Nam Hoon KIM ; Soo LIM ; In-Kyung JEONG ; Eun-Jung RHEE ; Jun Sung MOON ; Ohk-Hyun RYU ; Hyuk-Sang KWON ; Jong Chul WON ; Sang Soo KIM ; Sang Yong KIM ; Bon Jeong KU ; Heung Yong JIN ; Sin Gon KIM ; Bong-Soo CHA ;
Diabetes & Metabolism Journal 2025;49(2):225-234
		                        		
		                        			 Background:
		                        			The novel sodium-glucose cotransporter-2 (SGLT2) inhibitor enavogliflozin effectively lowers glycosylated hemoglobin levels and body weights without the increased risk of serious adverse events; however, the long-term clinical benefits of enavogliflozin in terms of cardiovascular and renal outcomes have not been investigated. 
		                        		
		                        			Methods:
		                        			This study is an investigator-initiated, multicenter, randomized, pragmatic, open-label, active-controlled, non-inferiority trial. Eligible participants are adults (aged ≥19 years) with type 2 diabetes mellitus (T2DM) who have a history of, or are at risk of, cardiovascular disease. A total of 2,862 participants will be randomly assigned to receive either enavogliflozin or other SGLT2 inhibitors with proven cardiorenal benefits, such as dapagliflozin or empagliflozin. The primary endpoint is the time to the first occurrence of a composite of major adverse cardiovascular or renal events (Clinical Research Information Service registration number: KCT0009243). 
		                        		
		                        			Conclusion
		                        			This trial will determine whether enavogliflozin is non-inferior to dapagliflozin or empagliflozin in terms of cardiorenal outcomes in patients with T2DM and cardiovascular risk factors. This study will elucidate the role of enavogliflozin in preventing vascular complications in patients with T2DM. 
		                        		
		                        		
		                        		
		                        	
9.Predicting Mortality and Cirrhosis-Related Complications with MELD3.0: A Multicenter Cohort Analysis
Jihye LIM ; Ji Hoon KIM ; Ahlim LEE ; Ji Won HAN ; Soon Kyu LEE ; Hyun YANG ; Heechul NAM ; Hae Lim LEE ; Do Seon SONG ; Sung Won LEE ; Hee Yeon KIM ; Jung Hyun KWON ; Chang Wook KIM ; U Im CHANG ; Soon Woo NAM ; Seok-Hwan KIM ; Pil Soo SUNG ; Jeong Won JANG ; Si Hyun BAE ; Jong Young CHOI ; Seung Kew YOON ; Myeong Jun SONG
Gut and Liver 2025;19(3):427-437
		                        		
		                        			 Background/Aims:
		                        			This study aimed to evaluate the performance of the Model for End-Stage Liver Disease (MELD) 3.0 for predicting mortality and liver-related complications compared with the Child-Pugh classification, albumin-bilirubin (ALBI) grade, the MELD, and the MELD sodium (MELDNa) score. 
		                        		
		                        			Methods:
		                        			We evaluated a multicenter retrospective cohort of incorporated patients with cirrhosis between 2013 and 2019. We conducted comparisons of the area under the receiver operating characteristic curve (AUROC) of the MELD3.0 and other models for predicting 3-month mortality. Additionally, we assessed the risk of cirrhosis-related complications according to the MELD3.0 score. 
		                        		
		                        			Results:
		                        			A total of 3,314 patients were included. The mean age was 55.9±11.3 years, and 70.2% of the patients were male. Within the initial 3 months, 220 patients (6.6%) died, and the MELD3.0had the best predictive performance among the tested models, with an AUROC of 0.851, outperforming the Child-Pugh classification, ALBI grade, MELD, and MELDNa. A high MELD3.0score was associated with an increased risk of mortality. Compared with that of the group with a MELD3.0 score <10 points, the adjusted hazard ratio of the group with a score of 10–20 pointswas 2.176, and that for the group with a score of ≥20 points was 4.892. Each 1-point increase inthe MELD3.0 score increased the risk of cirrhosis-related complications by 1.033-fold. The risk of hepatorenal syndrome showed the highest increase, with an adjusted hazard ratio of 1.149, followed by hepatic encephalopathy and ascites. 
		                        		
		                        			Conclusions
		                        			The MELD3.0 demonstrated robust prognostic performance in predicting mortality in patients with cirrhosis. Moreover, the MELD3.0 score was linked to cirrhosis-related complications, particularly those involving kidney function, such as hepatorenal syndrome and ascites. 
		                        		
		                        		
		                        		
		                        	
10.Phenotype of Relapsing Myelin Oligodendrocyte Glycoprotein Antibody-Associated Disease in Children
Ji Yeon HAN ; Soo Yeon KIM ; Woojoong KIM ; Hunmin KIM ; Anna CHO ; Jieun CHOI ; Jong-Hee CHAE ; Ki Joong KIM ; Young Se KWON ; Il Han YOO ; Byung Chan LIM
Journal of Clinical Neurology 2025;21(1):65-73
		                        		
		                        			 Background:
		                        			and Purpose To determine the clinical phenotypes, relapse timing, treatment responses, and outcomes of children with relapsing myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD). 
		                        		
		                        			Methods:
		                        			We collected the demographic, clinical, laboratory, and radiological data of patients aged <18 years who had been diagnosed with MOGAD at Seoul National University Children’s Hospital between January 2010 and January 2022; 100 were identified as positive for MOG antibodies, 43 of whom experienced relapse. 
		                        		
		                        			Results:
		                        			The median age at onset was 7 years (range 2–16 years). The median number of relapses was 2 (range 1–8), and patients were followed up for a median of 65 months (range 5–214 months). The first relapse was experienced before 3 months from onset by 15 patients (34.9%). The most-common initial phenotypes were acute disseminated encephalomyelitis (n=17, 39.5%) and optic neuritis (ON; n=11, 25.6%). The most-common relapse phenotypes were neuromyelitis optica spectrum disorder (n=9, 20.9%), relapsing ON (n=6, 14.0%), and multiphasic disseminated encephalomyelitis (n=6, 14.0%). Many of the patients (n=18, 41.9%) were not specifically categorized. A high proportion of these patients had non-acute disseminated encephalomyelitis encephalitis. Atypical phenotypes such as prolonged fever or hemiplegic migraine-like episodes were also noted. Mycophenolate mofetil and cyclic immunoglobulin treatment significantly reduced the annual relapse rates. 
		                        		
		                        			Conclusions
		                        			Our 43 pediatric patients with relapsing MOGAD showed a tendency toward early relapse and various relapse phenotypes. The overall prognoses of these patients were good regardless of phenotype or response to second-line immunosuppressant treatment. 
		                        		
		                        		
		                        		
		                        	
            
Result Analysis
Print
Save
E-mail