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264
A Randomized Placebo-Controlled Trial of
Tenofovir Disoproxil Fumarate in Chronic
Hepatitis B Patients with Minimally Elevated
Aminotransferase
Yao-Chun Hsu1, Chi-Yi Chen2, Chun-Ying Wu3, I-Wei Chang4,
Teng-Yu Lee5, Chi-Yang Chang6, Ming-Jong Bair7, Jyh-Jou
Chen8, Ming-Shiang Wu9, Chieh-Chang Chen9, Cheng-Hao
Tseng10, Wen-Hui Ku11, Lien-Juei Mou12 and Jaw-Town Lin6,
(1)I-Shou University, (2)Chia-Yi Christian Hospital, Chia Yi,
Taiwan, (3)Taipei Veterans General Hospital, (4)Taipei Medical
University Hospital, (5)Taichung Veterans General Hospital,
(6)Fu-Jen Catholic University Hospital, (7)Mackay Memorial
Hospital-Taitung Branch, (8)Chi-Mei Medical Center, (9)
National Taiwan University Hospital, (10)E-Da Hospital, (11)
Taipei Pathology Institutes, (12)Tainan Municipal Hospital
Background: Whether antiviral therapy is indicated in chronic
hepatitis B (CHB) patients with mild clinical hepatitis remains
controversial. Definitive evidence of therapeutic efficacy
has been lacking in patients with minimally raised alanine
aminotransferase (ALT). We aimed to clarify whether tenofovir
disoproxil fumarate (TDF) could prevent disease progression
in CHB patients with minimally raised ALT. Methods: This is
a multicenter randomized triple-blind placebo-controlled trial
from Taiwan. We enrolled a total of 160 CHB patients whose
serum ALT ranged 1-2 folds the upper limit of normal (ULN) with
viral DNA >2,000 IU/mL in the preceding year, and randomized
them to receive either TDF (n=80) or placebo (n=80) for 3
years. Patients with baseline cirrhosis were ineligible. The
primary outcomes were histological progression of liver
fibrosis and necroinflammation as evaluated by the Knodell
and Ishak scoring systems. Results: As of May 28, 2018, 65
TDF and 67 placebo receivers have completed the 3-year trial
and undergone paired liver biopsy. The results of these 132
patients were herein presented. The two study groups (TDF
vs. placebo) were comparable with similar characteristics at
baseline, such as (median, IQR) age (45, [39-54] vs. 43, [38-
51] years), viral DNA (5.32, [4.30-6.47] vs. 5.32, [4.39-6.29] log
IU/mL), and ALT levels (53, [46-63] vs. 52, [46-66] U/L). After
3 years of trial, liver fibrosis progressed (≥ 1-unit increase in
the Ishak stage) in 15 (23.1%) and 30 (44.8%) patients in the
TDF and placebo receivers, respectively (P=0.01). Cirrhosis
(Ishak stage 5 or 6) was documented in 2 (3.1%) and 9
(13.4%) patients in the TDF and placebo groups, respectively
(P=0.05). Hepatic necroinflammation improved (≥ 2-point
decrease in the Knodell necroinflammatory score) in 24
(36.9%) TDF and 18 (26.9%) placebo receivers, respectively
(P=0.26). Furthermore, the TDF receivers achieved higher
rates of undetectable HBV DNA level (n=53, 81.5% vs. n=9,
13.4%; P<0.001) and normalized ALT level (n=49, 75.4%
vs. n=35, 52.2%; P=0.007) than their placebo counterparts.
Hepatocellular carcinoma occurred in 2 TDF and 1 placebo
users, respectively (P=1.0). Conclusion: Antiviral treatment
using TDF reduces the risk of liver fibrosis progression in
CHB patients with minimally raised ALT (ClinicalTrials.gov
identifier: NCT01522625). |
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