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Review
. 2023 Jul;21(8):2001-2014.
doi: 10.1016/j.cgh.2023.03.041. Epub 2023 Apr 12.

Clinical Trial Landscape in NASH

Stephen A Harrison  1 , Rohit Loomba  2 , Julie Dubourg  3 , Vlad Ratziu  4 , Mazen Noureddin  5
Affiliations
Free article
Review

Clinical Trial Landscape in NASH

Stephen A Harrison et al. Clin Gastroenterol Hepatol. 2023 Jul.
Free article

Abstract

Nonalcoholic fatty liver disease consists of a spectrum starting from nonalcoholic fatty liver disease that may progress to nonalcoholic steatohepatitis (NASH), which can lead to fibrosis, cirrhosis, hepatocellular carcinoma, or even liver failure. The prevalence of NASH has increased in parallel with the rising rate of obesity and type 2 diabetes. Given the high prevalence and deadly complications of NASH, there have been significant efforts to develop effective treatments. Phase 2A studies have assessed various mechanisms of action across the spectrum of the disease, while phase 3 studies have focused mainly on NASH and fibrosis stage 2 and higher, as these patients have a higher risk of disease morbidity and mortality. The primary efficacy endpoints also vary, by using noninvasive tests in early-phase trials while relying on liver histological endpoints in phase 3 studies as required by regulatory agencies. Despite initial disappointment due to the failure of several drugs, recent phase 2 and 3 studies have shown promising results, with the first Food and Drug Administration-approved drug for NASH expected to be approved in 2023. In this review, we discuss the various drugs under development for NASH, their mechanisms of action, and the results of their clinical trials. We also highlight the potential challenges in developing pharmacological therapies for NASH.

Keywords: Cirrhosis; Liver; NAFLD; NASH.

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