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EASL2019 THU-205 停止治疗后评估HBV结果 来自4期3期研究 [复制链接]

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发表于 2019-4-1 07:30 |只看该作者 |倒序浏览 |打印
THU-205
Evaluation of HBV outcomes after treatment discontinuation
from 4 phase 3 studies
Maria Buti1, Thomas Berg2, Henry Chan3, Vithika Suri4,
Hongyuan Wang4, Anuj Gaggar4, Edward Gane5, Jörg Petersen6,
Sang Hoon Ahn7, Patrick Marcellin8. 1University Hospital Vall d’Hebron,
Barcelona, Spain; 2Leipzig University, Leipzig, Germany; 3Chinese
University of Hong Kong, Hong Kong, Hong Kong; 4Gilead Sciences, Inc.,
Foster City, United States; 5Auckland City Hospital, New Zealand Liver
Transplant Unit, Auckland, New Zealand; 6University of Hamburg,
Hamburg, Germany; 7Yonsei University College of Medicine, Seoul,
Korea, Rep. of South; 8Hôpital Beaujon, Viral Hepatitis Research Unit,
Clichy, France
Email: [email protected]
Background and aims: Current international guidelines recommend
stopping Nucleot (s)ide analogue (NA) therapy in a select group of
patients with the aim of promoting sustained off treatment response.
However, the durability and effectiveness of stopping NA therapy
appears to be poor with results from several studies reporting
virologic remission response rates of ∼50%. Here we evaluate 4 large
phase 3 studies for responses following treatment discontinuation.
Method: Patients from 4 phase 3 studies of TDF with or without Peg-
IFN in HBeAg negative and positive patients were followed for up to
144 weeks after discontinuing treatment. Multivariate logistic
regression modeling with stepwise selections were used to evaluate
baseline (BL) and post-treatment discontinuation predictors of offtreatment
responses, including; HBsAg loss and ALT < ULN with HBV
DNA <2000 IU/ml, each in 3 separate models
Results: Of the 1423 enrolled in the parent studies, 660 HBsAg
positive patients entered treatment free follow-up (TFFU) with a
mean follow-up duration of 34 weeks. Demographic and disease
characteristics of patients at the time of withdrawal are shown in
Table. At the end of the TFFU, 2% had HBsAg loss and 17% of patients
had ALT < ULN with DNA <2000 IU/ml. For the virologic outcomes, a
lower BL HBV DNA level (Odds Ratio (OR): 0.748, p < 0.001), an
increased duration of HBV DNA suppression (OR: 1.003, p < 0.0001),
HBeAg negativity (OR: 2.821, p = 0.0013), a smaller increase in HBV
DNA off treatment (OR: 0.505, p < 0.0001) and NA treatment (OR (NA
vs Peg IFN): 8.285, p < 0.0001) at the time of withdrawal were
significant predictors of patients who remain ALT <ULN with HBV
DNA <2000 IU/ml at the end of follow-up. Predictors of patients with
HBsAg loss include low BL HBV DNA levels (OR: 0.342, p < 0.001) and
low HBsAg levels (OR: 0.445, p < 0.001) at the time of withdrawal.
N = 660
Median Age, y (range) 37 (18-69)
Male, n (%) 449 (68)
Asian, n (%) 435 (67)
Genotype, n (%) A 72 (11)
                         B 161 (24)
                         C 243 (37)
                          D 171 (26)
Median BL ALT, U/L (Q1, Q3) 84 (56, 132)
Median BL HBV DNA, log10 IU/ml (Q1, Q3) 7 (5.6, 8)
Median BL HBsAg, log10 IU/ml (Q1, Q3) 3.9 (3.4, 4.4)
Treatment n (%) NUC 275 (42)
                         Peg IFN 161 (24)
                         NUC + Peg IFN 324 (49)
Mean TFFU Duration, weeks (SD) 33.7 (37.29)
Median BL ALT at treatment withdrawal,U, L (Q1, Q3)     32 (23, 48)
Median BL HBV DNA at treatment withdrawal, log10 IU/ml (Q1, Q3)     1.30 (1.15, 1.52)
Median BL HBsAg at treatment withdrawal, log10 IU/ml (Q1, Q3)         3.47 (2.83, 3.97)
HBeAg positive at treatment withdrawal, n (%) 251 (38)

Conclusion: Treatment discontinuation results in the majority of
patients having recurrence of HBV viremia with low rates of HBsAg
loss or maintenance of inactive carrier state. Predicting outcomes in a
diverse population will be required for safe and effective treatment
discontinuation.

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现金
62111 元 
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30437 
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才高八斗

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发表于 2019-4-1 07:30 |只看该作者
THU-205
停止治疗后评估HBV结果
来自4期3期研究
Maria Buti1,Thomas Berg2,Henry Chan3,Vithika Suri4,
Hongyuan Wang4,Anuj Gaggar4,Edward Gane5,JörgPetersen6,
Sang Hoon Ahn7,Patrick Marcellin8。 1 Vall d'Hebron大学医院,
西班牙巴塞罗那; 2莱比锡大学,德国莱比锡; 3Chinese
香港大学,香港,香港; 4Gilead Sciences,Inc。,
美国福斯特城;新西兰5A Auckland市医院肝脏
移植单位,新西兰奥克兰; 6汉堡大学,
德国汉堡;首尔7Yonsei大学医学院,
韩国,南方众议员; 8HôpitalBejjon,病毒性肝炎研究组,
克利希,法国
电子邮件:[email protected]
背景和目标:目前的国际准则建议
在选择的一组中停止Nucleot(s)ide类似物(NA)治疗
患者的目的是促进持续的治疗反应。
但是,停止NA治疗的耐久性和有效性
一些研究报告的结果似乎很差
病毒学缓解反应率~50%。在这里我们评估4大
治疗中止后的反应的第3阶段研究。
方法:来自TDF的4期3期研究的患者,有或没有Peg-
HBeAg阴性和阳性患者的IFN随访至数周期
停止治疗后144周。多变量逻辑
使用逐步选择的回归建模来评估
基线(BL)和治疗后停止预处理的预测因子
回应,包括; HBsAg丢失和ALT <ULN与HBV
DNA <2000 IU / ml,分别在3个独立的模型中
结果:在父母研究的1423名患者中,有660名HBsAg
阳性患者随访进入无治疗随访(TFFU)
平均随访时间为34周。人口和疾病
退出时患者的特征如下所示
表。在TFFU结束时,2%患有HBsAg,17%患者
ALT <ULN,DNA <2000 IU / ml。对于病毒学结果,a
降低BL HBV DNA水平(优势比(OR):0.748,p <0.001),a
HBV DNA抑制持续时间延长(OR:1.003,p <0.0001),
HBeAg阴性(OR:2.821,p = 0.0013),HBV增加较小
DNA处理(OR:0.505,p <0.0001)和NA处理(OR(NA
vs Peg IFN):撤回时为8.285,p <0.0001)
患有ALT <ULN且HBV的患者的显着预测因子
随访结束时DNA <2000 IU / ml。患者的预测因子
HBsAg丢失包括低BL HBV DNA水平(OR:0.342,p <0.001)和
戒断时HBsAg水平低(OR:0.445,p <0.001)。
N = 660
年龄中位数,y(范围)37(18-69)
男,n(%)449(68)
亚洲人,n(%)435(67)
基因型,n(%)A 72(11)
B 161(24)
C 243(37)
D 171(26)
中位数BL ALT,U / L(Q1,Q3)84(56,132)
中位数BL HBV DNA,log10 IU / ml(Q1,Q3)7(5.6,8)
中位数BL HBsAg,log10 IU / ml(Q1,Q3)3.9(3.4,4.4)
治疗n(%)NUC 275(42)
Peg IFN 161(24)
NUC + Peg
IFN
324(49)
平均TFFU持续时间,周(SD)33.7(37.29)
治疗停药时的中位数BL ALT,
U,L(Q1,Q3)
32(23,48)
处理中位BL HBV DNA
退出,log10 IU / ml(Q1,Q3)
1.30(1.15,1.52)
治疗撤退时中位BL HBsAg,
log10 IU / ml(Q1,Q3)
3.47(2.83,3.97)
治疗停药时HBeAg阳性,
n(%)
251(38)结论:治疗中止导致大多数
HBs病毒血症复发率低,HBsAg率低的患者
丢失或维持不活跃的承运人状态。预测结果
安全有效的治疗需要多样化的人口
停药。
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