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Abstract Title:

Clinical significance of fatty liver disease induced by tamoxifen and toremifene in breast cancer patients.

Abstract Source:

Breast. 2016 Aug ;28:67-72. Epub 2016 May 27. PMID: 27240168

Abstract Author(s):

Young-Joo Yang, Kang Mo Kim, Ji Hyun An, Dan Bi Lee, Ju Hyun Shim, Young-Suk Lim, Han Chu Lee, Yung Sang Lee, Jin-Hee Ahn, Kyung Hae Jung, Sung-Bae Kim

Article Affiliation:

Young-Joo Yang

Abstract:

BACKGROUND AND AIM: The aim of this study was to identify the effect of selective estrogen receptor modulator (SERM) on non-alcoholic fatty liver disease (NAFLD) in Asian women.

METHODS: We retrospectively evaluated fatty liver development and/or serum alanine aminotransferase (ALT) elevation during SERM treatment in 1061 women who were diagnosed and treated with breast cancer in 2005 at Asan Medical Center.

RESULTS: 45 of 618 SERM-treated patients with normal ALT at baseline experienced ALT elevation during SERM treatment. Among the 112 SERM-treated patients who underwent liver imaging test, fatty liver was observed in 47 and both fatty liver and ALT elevation developed in 16 of 102 SERM-treated patients with normal baseline ALT. The cumulative rates of ALT elevation (10.7 vs. 4.3%; P = 0.002), fatty liver (48.5 vs. 20.9%; P < 0.001), and both fatty liver and ALT elevation (17.7 vs. 7.1%; P = 0.02) at 60 months were significantly higher in the SERM group than non-SERM group. By multivariate analysis, SERM treatment increased the risk of ALT elevation (hazard ratio [HR], 2.20; P = 0.01), fatty liver development (HR,3.59; P < 0.001), and both fatty liver and ALT elevation (HR, 4.98; P = 0.01). After discontinuation of SERM, elevated serum ALT normalized in 39 (92.9%) and there were no instances of liver-related death or progression to liver cirrhosis in patients who experienced fatty liver or ALT elevation.

CONCLUSIONS: Although SERM treatment is significantly associated with NAFLD in Asian women, considering the tolerability and reversibility of NAFLD induced by SERM, it can be continued with liver function monitoring in relevant patients.

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Sayer Ji
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