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Tanaka, Atsushi; Hirohara, Junko; Nakano, Toshiaki; Matsumoto, Kosuke; Chazouillères, Olivier; Takikawa, Hajime; Hansen, Bettina E.; Carrat, Fabrice; Corpechot, Christophe
Journal of hepatology, 09/2021, Volume: 75, Issue: 3Journal Article
A beneficial effect of bezafibrate (BZF) on symptoms and biochemical features of primary biliary cholangitis (PBC) has been reported in patients with an incomplete response to ursodeoxycholic acid (UDCA), but long-term effects on survival remain unknown. In Japan, BZF has been used as a de facto second-line therapy for PBC since 2000. Herein, we compared the survival rates between patients treated with and those without BZF in a large nationwide Japanese PBC cohort. All consecutively registered patients of this cohort who started UDCA therapy from 2000 onwards and had a follow-up ≥1 year were included. Association between BZF exposure and mortality or need for liver transplantation (LT) was assessed using time-dependent, multivariable-and propensity score-adjusted Cox proportional hazards models. Clinical benefit was quantified using the number needed to treat (NNT). Of 3,908 eligible patients, 3,162 (81%) received UDCA only and 746 (19%) UDCA and BZF over 17,360 and 3,932 patient-years, respectively. During follow-up, 183 deaths (89 liver-related) and 21 LT were registered. Exposure to combination therapy was associated with a significant decrease in all-cause and liver-related mortality or need for LT (adjusted hazard ratios: 0.3253, 95% CI 0.1936–0.5466 and 0.2748, 95% CI 0.1336–0.5655, respectively; p <0.001 for both). This association was consistent across various risk groups at baseline. The NNTs with combination therapy to prevent 1 additional death or LT over 5, 10, and 15 years were 29 (95% CI 22–46), 14 (10–22), and 8 (6–15), respectively. In a large retrospective cohort study of treatment effects in patients with PBC, the addition of BZF to UDCA was associated with improved prognosis. The long-term efficacy of bezafibrate (BZF) on liver transplantation (LT) – free survival in patients with PBC and an incomplete response to ursodeoxycholic acid (UDCA) remains to be determined. In this Japanese nationwide retrospective cohort study, the use of UDCA-BZF combination therapy, compared to UDCA alone, was associated with a lower risk of all-cause and liver-related mortality or need for LT. These results indicate that BZF is so far the only drug in PBC to have demonstrated efficacy in improving symptoms, biochemical markers, and long-term outcomes. Display omitted •Long-term efficacy of second-line therapies for PBC (obeticholic acid, bezafibrate) remains to be established.•In Japan, bezafibrate has been used since 2000 as a de facto second-line treatment for UDCA-resistant PBC.•In this large Japanese retrospective cohort study (n = 3,908), addition of bezafibrate to UDCA was associated with improved transplant-free survival.•Bezafibrate is currently the only drug in PBC demonstrating efficacy in improving symptoms, biochemical markers, and prognosis.
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