N-ACETYLCYSTEINE AND/OR URSODEOXYCHOLIC ACID ASSOCIATED WITH METFORMIN IN NON-ALCOHOLIC STEATOHEPATITIS: AN OPEN-LABEL MULTICENTER RANDOMIZED CONTROLLED TRIAL

ABSTRACT BACKGROUND: Nowadays, pharmacological treatment of non-alcoholic fatty liver disease (NAFLD) is still limited and it is based on the treatment of conditions associated comorbities. Oxidative stress and insulin resistance are the mechanisms that seem to be mostly involved in its pathogenes...

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Main Authors: Claudia P OLIVEIRA, Helma P COTRIM, Jose Tadeu STEFANO, Ana Cristina G SIQUEIRA, Ana Lucia Azevedo SALGADO, Edison Roberto PARISE
Format: Article
Language:English
Published: Instituto Brasileiro de Estudos e Pesquisas de Gastroenterologia (IBEPEGE)
Series:Arquivos de Gastroenterologia
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-28032019000200184&lng=en&tlng=en
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author Claudia P OLIVEIRA
Helma P COTRIM
Jose Tadeu STEFANO
Ana Cristina G SIQUEIRA
Ana Lucia Azevedo SALGADO
Edison Roberto PARISE
author_facet Claudia P OLIVEIRA
Helma P COTRIM
Jose Tadeu STEFANO
Ana Cristina G SIQUEIRA
Ana Lucia Azevedo SALGADO
Edison Roberto PARISE
author_sort Claudia P OLIVEIRA
collection DOAJ
description ABSTRACT BACKGROUND: Nowadays, pharmacological treatment of non-alcoholic fatty liver disease (NAFLD) is still limited and it is based on the treatment of conditions associated comorbities. Oxidative stress and insulin resistance are the mechanisms that seem to be mostly involved in its pathogenesis. OBJECTIVE: To evaluate the efficacy of N-acetylcysteine (NAC) in combination with metformin (MTF) and/or ursodeoxycholic acid (UDCA) for treatment of non-alcoholic steatohepatitis (NASH). METHODS: Open-label multicenter randomized trial was conducted for 48 weeks. It included patients with biopsy-proven NASH. The patients were randomized into three groups: NAC (1.2 g) + UDCA (15 mg/kg) + MTF (850-1500 mg/day) (n=26); UDCA (20 mg/kg) + MTF (850-1500 mg/day) (n=13); NAC (1.2g) + MTF (850-1500 mg/day) (n=14) for 48 weeks. Clinical, laboratory and the second liver biopsies were performed after 48 weeks. RESULTS: A total of 53 patients were evaluated; 17 (32.1%) were males; median age ±54 (IQR=15, 21-71) years. In the baseline, no difference was seen between groups according clinical and histological parameters. The groups differed only in cholesterol, LDL and triglycerides. No significant differences in biochemical and histologic parameters were found between these the three groups after 48 weeks of treatment. In the intragroup analysis (intention-to-treat) comparing histological and biochemical features, there were significant improvements in the steatosis degree (P=0.014), ballooning (0.027) and, consequently, in the NAFLD Activity Score (NAS) (P=0.005), and in the ALT levels at the end of the treatment only in the NAC + MTF group. No significant evidence of modification in the liver fibrosis could be observed in any of the groups. CONCLUSION: This multicenter study suggests that the association of NAC + MTF could reduce the liver disease activity in patients with NASH. These data stimulate further controlled studies with this therapy for these patients.
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spelling doaj.art-d856298d9a9e4b53bd45186e7bf3a4172022-12-21T22:31:18ZengInstituto Brasileiro de Estudos e Pesquisas de Gastroenterologia (IBEPEGE)Arquivos de Gastroenterologia1678-421956218419010.1590/s0004-2803.201900000-36S0004-28032019000200184N-ACETYLCYSTEINE AND/OR URSODEOXYCHOLIC ACID ASSOCIATED WITH METFORMIN IN NON-ALCOHOLIC STEATOHEPATITIS: AN OPEN-LABEL MULTICENTER RANDOMIZED CONTROLLED TRIALClaudia P OLIVEIRAHelma P COTRIMJose Tadeu STEFANOAna Cristina G SIQUEIRAAna Lucia Azevedo SALGADOEdison Roberto PARISEABSTRACT BACKGROUND: Nowadays, pharmacological treatment of non-alcoholic fatty liver disease (NAFLD) is still limited and it is based on the treatment of conditions associated comorbities. Oxidative stress and insulin resistance are the mechanisms that seem to be mostly involved in its pathogenesis. OBJECTIVE: To evaluate the efficacy of N-acetylcysteine (NAC) in combination with metformin (MTF) and/or ursodeoxycholic acid (UDCA) for treatment of non-alcoholic steatohepatitis (NASH). METHODS: Open-label multicenter randomized trial was conducted for 48 weeks. It included patients with biopsy-proven NASH. The patients were randomized into three groups: NAC (1.2 g) + UDCA (15 mg/kg) + MTF (850-1500 mg/day) (n=26); UDCA (20 mg/kg) + MTF (850-1500 mg/day) (n=13); NAC (1.2g) + MTF (850-1500 mg/day) (n=14) for 48 weeks. Clinical, laboratory and the second liver biopsies were performed after 48 weeks. RESULTS: A total of 53 patients were evaluated; 17 (32.1%) were males; median age ±54 (IQR=15, 21-71) years. In the baseline, no difference was seen between groups according clinical and histological parameters. The groups differed only in cholesterol, LDL and triglycerides. No significant differences in biochemical and histologic parameters were found between these the three groups after 48 weeks of treatment. In the intragroup analysis (intention-to-treat) comparing histological and biochemical features, there were significant improvements in the steatosis degree (P=0.014), ballooning (0.027) and, consequently, in the NAFLD Activity Score (NAS) (P=0.005), and in the ALT levels at the end of the treatment only in the NAC + MTF group. No significant evidence of modification in the liver fibrosis could be observed in any of the groups. CONCLUSION: This multicenter study suggests that the association of NAC + MTF could reduce the liver disease activity in patients with NASH. These data stimulate further controlled studies with this therapy for these patients.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-28032019000200184&lng=en&tlng=enHepatopatia gordurosa não alcoólicaAcetilcisteínaÁcido ursodesoxicólicoMetformina
spellingShingle Claudia P OLIVEIRA
Helma P COTRIM
Jose Tadeu STEFANO
Ana Cristina G SIQUEIRA
Ana Lucia Azevedo SALGADO
Edison Roberto PARISE
N-ACETYLCYSTEINE AND/OR URSODEOXYCHOLIC ACID ASSOCIATED WITH METFORMIN IN NON-ALCOHOLIC STEATOHEPATITIS: AN OPEN-LABEL MULTICENTER RANDOMIZED CONTROLLED TRIAL
Arquivos de Gastroenterologia
Hepatopatia gordurosa não alcoólica
Acetilcisteína
Ácido ursodesoxicólico
Metformina
title N-ACETYLCYSTEINE AND/OR URSODEOXYCHOLIC ACID ASSOCIATED WITH METFORMIN IN NON-ALCOHOLIC STEATOHEPATITIS: AN OPEN-LABEL MULTICENTER RANDOMIZED CONTROLLED TRIAL
title_full N-ACETYLCYSTEINE AND/OR URSODEOXYCHOLIC ACID ASSOCIATED WITH METFORMIN IN NON-ALCOHOLIC STEATOHEPATITIS: AN OPEN-LABEL MULTICENTER RANDOMIZED CONTROLLED TRIAL
title_fullStr N-ACETYLCYSTEINE AND/OR URSODEOXYCHOLIC ACID ASSOCIATED WITH METFORMIN IN NON-ALCOHOLIC STEATOHEPATITIS: AN OPEN-LABEL MULTICENTER RANDOMIZED CONTROLLED TRIAL
title_full_unstemmed N-ACETYLCYSTEINE AND/OR URSODEOXYCHOLIC ACID ASSOCIATED WITH METFORMIN IN NON-ALCOHOLIC STEATOHEPATITIS: AN OPEN-LABEL MULTICENTER RANDOMIZED CONTROLLED TRIAL
title_short N-ACETYLCYSTEINE AND/OR URSODEOXYCHOLIC ACID ASSOCIATED WITH METFORMIN IN NON-ALCOHOLIC STEATOHEPATITIS: AN OPEN-LABEL MULTICENTER RANDOMIZED CONTROLLED TRIAL
title_sort n acetylcysteine and or ursodeoxycholic acid associated with metformin in non alcoholic steatohepatitis an open label multicenter randomized controlled trial
topic Hepatopatia gordurosa não alcoólica
Acetilcisteína
Ácido ursodesoxicólico
Metformina
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-28032019000200184&lng=en&tlng=en
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