Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2021
Tenofovir Alafenamide for Drug-Resistant Hepatitis B: A Randomized Trial for Switching From Tenofovir Disoproxil Fumarate.
СтатьяМногоцентровое исследованиеРандомизированное исследованиеПоддержка исследования: вне правительства СШАEquivalence TrialНазвание и аннотация: Перевод пока не подготовлен
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Byun Kwan Soo, Choi Jonggi, Kim Ji-Hoon, Lee Yung Sang, Lee Han Chu, Kim Yoon Jun, Yoo Byung Chul, Kwon So Young, Gwak Geum-Youn, Lim Young-Suk
Аннотация
BACKGROUND & AIMS: It remains unknown whether tenofovir alafenamide (TAF) could replace tenofovir disoproxil fumarate (TDF) in patients with drug-resistant hepatitis B virus (HBV).
METHODS: In this multicenter randomized non-inferiority trial, 174 patients with HBV resistant to multiple drugs (lamivudine, entecavir, and/or adefovir) under TDF monotherapy for ≥96 weeks were randomized 1:1 to switch to TAF (n = 87) or continue TDF (n = 87) for 48 weeks. The primary endpoint was proportion of patients with HBV DNA <60 IU/mL at week 48.
RESULTS: At baseline, 84 and 80 patients had HBV DNA <60 IU/mL in the TAF and TDF groups, respectively. At week 48, the proportion of patients with HBV DNA <60 IU/mL was 98.9% (86/87) in TAF group, showing non-inferiority to TDF group (97.7%, 85/87; difference, 1.1%; 95% confidence interval, -2.7% to 5.0%). Changes in median alanine aminotransferase at week 48 from baseline were statistically different between TAF and TDF groups (-3 IU/L vs +2 IU/L; P = .02). TAF group showed a statistically greater increase in bone mineral density at spine (+1.84% vs +0.08%; P = .01) and numerically higher increase in mean estimated glomerular filtration rate (+8.2% vs +4.5%; P = .06) compared with TDF group. Compared with TDF group, TAF group showed significantly greater increases in mean body weight (0.71 vs -0.37 kg; P = .01) and total, low-density lipoprotein, and high-density lipoprotein cholesterol levels (P < .001 for all) at week 48 from baseline.
CONCLUSIONS: TAF could be substituted for TDF in patients with multidrug-resistant HBV for improved bone and renal safety without a loss of efficacy. However, increases in body weight and cholesterol levels with TAF treatment would be a concern. ClinicalTrials.gov no.: NCT03241641.
METHODS: In this multicenter randomized non-inferiority trial, 174 patients with HBV resistant to multiple drugs (lamivudine, entecavir, and/or adefovir) under TDF monotherapy for ≥96 weeks were randomized 1:1 to switch to TAF (n = 87) or continue TDF (n = 87) for 48 weeks. The primary endpoint was proportion of patients with HBV DNA <60 IU/mL at week 48.
RESULTS: At baseline, 84 and 80 patients had HBV DNA <60 IU/mL in the TAF and TDF groups, respectively. At week 48, the proportion of patients with HBV DNA <60 IU/mL was 98.9% (86/87) in TAF group, showing non-inferiority to TDF group (97.7%, 85/87; difference, 1.1%; 95% confidence interval, -2.7% to 5.0%). Changes in median alanine aminotransferase at week 48 from baseline were statistically different between TAF and TDF groups (-3 IU/L vs +2 IU/L; P = .02). TAF group showed a statistically greater increase in bone mineral density at spine (+1.84% vs +0.08%; P = .01) and numerically higher increase in mean estimated glomerular filtration rate (+8.2% vs +4.5%; P = .06) compared with TDF group. Compared with TDF group, TAF group showed significantly greater increases in mean body weight (0.71 vs -0.37 kg; P = .01) and total, low-density lipoprotein, and high-density lipoprotein cholesterol levels (P < .001 for all) at week 48 from baseline.
CONCLUSIONS: TAF could be substituted for TDF in patients with multidrug-resistant HBV for improved bone and renal safety without a loss of efficacy. However, increases in body weight and cholesterol levels with TAF treatment would be a concern. ClinicalTrials.gov no.: NCT03241641.