Cançado, Guilherme Grossi Lopes

Background: Noninvasive tests are well validated in metabolic dysfunction–associated steatotic liver disease, but evidence in metabolic dysfunction and alcohol-associated liver disease (MetALD) and alcohol-associated liver disease (ALD) is limited. We evaluated noninvasive test–based clinical care pathways for fibrosis risk stratification in MetALD and ALD. Methods: This is a multinational, multicenter, cross-sectional study across 35 centers in 16 countries (2013–2025), including adults with MetALD or ALD. Fibrosis was assessed by liver biopsy and/or vibration-controlled transient elastography (VCTE). In biopsy-proven participants, we analyzed the sequential pathway (Fibrosis-4 [FIB-4] first, followed by VCTE for indeterminate FIB-4) to identify advanced fibrosis (≥F3). Diagnostic accuracy was assessed using the AUC. Results: Among 893 participants (41.3% MetALD and 58.7% ALD), the median age was 52 [43.0–61.0] years, and 79.4% were male. The estimated prevalence of advanced fibrosis was 45% (32.2% in MetALD and 54.0% in ALD). Participants with MetALD had a more dysmetabolic profile but lower fibrosis stages than ALD. Among biopsy-proven participants, FIB-4 AUC was 0.720, and VCTE AUC was 0.833. FIB-4 performed better in MetALD than ALD (AUC 0.773 vs. 0.540), while VCTE accuracy was similar across groups. In the sequential pathways, the false-negative rate for advanced fibrosis (misclassified as low risk) was 6.8% (4.9% MetALD and 11.3% ALD). Conclusions: In biopsy-proven patients, FIB-4 performance was acceptable in MetALD but substantially weaker in ALD. The standard 2-step pathway performed adequately in MetALD but missed a clinically meaningful proportion of advanced fibrosis in ALD.

ABSTRACT Background Obeticholic acid (OCA) was conditionally approved in 2016 as a second‐line therapy for patients with primary biliary cholangitis (PBC) and incomplete response to ursodeoxycholic acid (UDCA) monotherapy. We aimed to evaluate the impact of OCA add‐on therapy on biochemical outcomes and safety in those patients. Methods We systematically searched MEDLINE, Embase, and Cochrane CENTRAL for papers published up to October 29, 2024, evaluating OCA in patients with PBC at the 12‐month timepoint. Pooled analyses of liver enzymes were performed using the standard mean difference (SMD) and 95% confidence interval (CI) from the OCA baseline. Side effects and the achievement of criteria for adequate response are presented in percentages (95% CI). Results We included 1285 patients from 10 studies, two of which were RCTs. The addition of OCA significantly reduced alkaline phosphatase (ALP) (SMD −0.86; −1.15 to −0.56; p < 0.001) and total bilirubin (SMD −0.29; −0.43 to −0.15; p < 0.001). Overall, 37.23% of the patients (95% CI 31.47–43.39) responded to OCA (POISE criteria). The response rate was greater in the POISE trial results compared with real‐world data (46.15% vs. 30.54%, respectively; p = 0.0089). Pruritus was the most common adverse event (40.23%; 24.65–58.07). Approximately one‐fifth of the patients stopped OCA (18.05%; 12.72–24.99), with pruritus being the main reason for discontinuation (47.70%; 34.15–61.60). Conclusion Adding OCA improves ALP, bilirubin, and biochemical remission rates in patients with PBC who did not respond well to UDCA monotherapy. Real‐world data show an attenuated response. Pruritus is the most common side effect and the leading cause of drug discontinuation.