慢性乙型肝炎免疫耐受期的抗病毒治疗: 系统综述
DOI: 10.3969/j.issn.1001-5256.2021.06.013
Antiviral therapy for patients with chronic hepatitis B in the immune-tolerant phase: A systematic review
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摘要:
目的 系统评价抗病毒治疗在免疫耐受期慢性乙型肝炎(CHB)患者中的有效性和安全性。 方法 检索PubMed、EMBASE、Cochrane library、中国知网、万方数据库自数据库建立至2020年9月抗病毒药物治疗免疫耐受期CHB的临床试验,进行质量评价后提取相关效应量并进行系统评价。主要结局指标为HBV DNA阴转率。 结果 共纳入9项研究821例患者。8项研究报道了治疗组中HBV DNA阴转率,6项研究中治疗组HBV DNA阴转率均超过60%,明显高于未治疗患者(0~29.1%),且联合治疗组优于单药治疗组。但在长期观察中,病毒学复发较常见。8项研究报告了HBeAg血清学转换,仅2项IFNα治疗儿童的研究中治疗组血清学转换率超过20%,高于未治疗组。HBsAg阴转出现在2项使用IFNα治疗的研究中,无研究观察到HBsAg血清学转换。1项研究报告了肝硬化和肝细胞癌(HCC)的风险,显示抗病毒治疗可降低患者肝硬化和HCC的风险。不良反应发生率在核苷(酸)类似物治疗中为4.1%~13.0%,在IFNα治疗中达到了100%,严重不良反应少见。 结论 免疫耐受期CHB患者给予抗病毒后绝大多数可出现满意的病毒学应答,但停药后易复发,且血清学转换率低。抗病毒治疗安全性良好。目前证据表明,对于该类患者如无明确疾病进展可动态观察。 Abstract:Objective Objective To systematically evaluate the efficacy and safety of antiviral therapy in patients with chronic hepatitis B (CHB) in the immune-tolerant phase. Methods PubMed, Embase, Cochrane Library, CNKI, and Wanfang Data were searched for clinical trials of antiviral therapy for CHB patients in the immune-tolerant phase published up to September 2020. Related data were extracted after quality assessment for systematic review. HBV DNA clearance rate was the primary outcome. Results A total of 9 studies involving 821 patients were included. Eight studies reported HBV DNA clearance rate in the treatment group, among which 6 studies had an HBV DNA clearance rate of > 60%, which was significantly higher than that in the untreated patients (0%-29.1%), and the combination therapy group had a better clearance rate than the monotherapy group. However, virologic recurrence was more common in the long term. Eight studies reported HBeAg seroconversion, and only 2 studies of the treatment of children with interferon-α (IFN-α) reported a seroconversion rate of > 20% in the treatment group, which was higher than that in the untreated group. HBsAg clearance was observed in 2 studies of IFN-α treatment, while HBsAg seroconversion was not observed. One study reported the risk of liver cirrhosis and hepatocellular carcinoma (HCC) and showed that antiviral therapy could reduce the risk of liver cirrhosis and HCC in patients. The incidence rate of adverse events ranged from 4.1%-13.0% in the treatment with nucleos(t)ide analogues and reached 100% in the treatment with IFN-α, and serious adverse events were rare. Conclusion The majority of CHB patients in the immune-tolerant phase show satisfactory virologic response after antiviral therapy, but they tend to experience recurrence after drug withdrawal and have a low seroconversion rate. Antiviral therapy has good safety. Current evidence suggests that such patients can be dynamically observed if there is no clear evidence for disease progression. -
Key words:
- Hepatitis B, Chronic /
- Immune Tolerance /
- Therapeutics /
- Systematic Review
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表 1 纳入研究的基本特征
纳入研究 国家 例数(男/女) 抗病毒策略 年龄(岁) HBeAg阳性(例) ALT(U/ml) HBV DNA(U/ml) 治疗时间(周) 随访时间(周) 结局指标 研究类型 Artan[17](2005) 土耳其 13/4
3/3拉米夫定
未治疗10.6
917
637.3
30.7NR
NR140
-164
164①③ NRCT Chan[18](2014) 多国 31/33
31/31替诺福韦
替诺福韦+恩曲他滨33
3363
6226.9
26.28.42 log10
8.40 log10192
192192
192①②③④ RCT Chang[11](2017) 韩国 46/41
195/202核苷(酸)类似物
未治疗43.2
41.587
39726.9
26.87.3 log10
7.4 log10NR
NR200
285①③⑥⑦ 队列研究 Feld[13](2019) 加拿大 15/13 恩替卡韦+PEG-IFNα 37.2 28 21 8.2 log10 48 96 ①②③④⑤ 单臂NRCT Lau[19](2002) 中国 12/20
15/17泛昔洛韦
未治疗29
3032
3238
229.04 log10
9.05 log1026
-78
78③ NRCT Leung[20](2014) 中国 9/7
9/5
6/10替比夫定
替诺福韦
替比夫定+替诺福韦28.0
27.3
28.916
14
1631.6
33.9
33.38.98 log10
8.78 log10
8.89 log1012
12
1212
12
12①② RCT Poddar[21](2013) 印度 24/4
27/7拉米夫定+IFNα
未治疗5.92
7.8228
3446.60
50.62NR
NR52
-21.14
28.70①③④ NRCT Wu[22](2019) 中国 26/34
24/37替诺福韦+替比夫定
替诺福韦33
3260
6132.1
31.26.5 log10
7.1 log1048
4848
48①③⑤ RCT Zhu[23](2018) 中国 30/16
13/10IFNα/IFN+拉米夫定
未治疗7
846
2345
489.95×107
1.72×10872
-96
96①③④⑤ RCT 注:NR,未报告; RCT,随机对照研究; NRCT,非随机对照研究; 结局指标中①HBV DNA阴转率; ②HBeAg阴转率; ③HBeAg血清学转换率; ④HBsAg阴转率; ⑤HBsAg血清学转换率; ⑥HCC发生率; ⑦肝硬化发生率。 表 2 纳入研究中对免疫耐受期人群的描述
纳入研究 免疫耐受期人群描述 Artan[17](2005) HBsAg(+)>6月,HBeAg(+),抗-HBs(-),抗-HBe(-),HBV DNA>105拷贝/ml,ALT<45 U/L Chan[18](2014) HBsAg(+),HBV DNA>1.7×107 IU/ml,ALT<43 U/L(男)/34 U/L(女) Chang[11](2017) HBeAg(+),HBV DNA>2000 IU/ml,ALT<40 U/L Feld[13](2019) HBsAg(+),HBeAg(+)>12周,HBV DNA>107 IU/ml>12周,ALT<45 U/L(男)/30 U/L(女) Lau[19](2002) HBsAg(+)>6月,HBV DNA>4000 Meq/ml,ALT<1.5倍正常值上限 Leung[20](2014) HBsAg(+)>6月,HBeAg(+)>3月,HBV DNA>107 log10拷贝/ml,ALT<正常值上限,抗-HBc(-) Poddar[21](2013) HBsAg(+)>6月,HBeAg(+),HBV DNA>107拷贝/ml,ALT<2倍正常值上限 Wu[22](2019) HBsAg(+)>6月,HBeAg(+),抗-HBe(-),HBV DNA>107 IU/ml,ALT<40 U/L(男)/30 U/L(女) Zhu[23](2018) HBsAg(+)>6月,HBeAg(+),抗-HBe(-),HBV DNA>107 IU/ml,ALT<60 U/L 表 3 纳入研究的偏倚风险评价结果
纳入研究 序列产生 分配隐藏 盲法 结局数据完整性 选择性结局报告 其他偏倚来源 Artan[17](2005) - - 不清楚 是 不清楚 无 Chan[18](2014) 不清楚 不清楚 是 是 不清楚 无 Feld[13](2019) - - 否 是 无 无 Lau[19](2002) - - 不清楚 是 无 无 Leung[20](2014) 不清楚 不清楚 不清楚 是 无 无 Poddar[21](2013) - - 不清楚 是 不清楚 无 Wu[22](2019) 不清楚 - 否 是 无 无 Zhu[23](2018) 随机数字表法 - 否 是 无 无 注:-,未予评估。文献11为回顾性队列研究,未列入表中,偏倚风险评价结果如下,非暴露队列选择(★),暴露资料的确定(★),证实初始无观察结局(★),考虑可比性(★ ★),结局评价(★),随访时限不得分,随访充足性(★),总计7★。 表 4 抗病毒治疗的有效性分析
纳入研究 纳入人群 抗病毒方案 治疗持续时间(周) HBV DNA阴转率(%) HBeAg阴转率(%) HBeAg血清学转换率(%) HBsAg阴转率(%) HBsAg血清学转换率(%) HCC发生风险(HR) 肝硬化发生风险(HR) Artan[17](2005) 儿童 拉米夫定vs非治疗 150 5.9 vs 0(P=1.000) NR 0 vs 0 NR NR NR NR Chan[18](2014) 成人 替诺福韦+恩曲他滨vs替诺福韦 192 75.8 vs 54.7(P=0.016) 1.6 vs 6.3(P=0.365) 0 vs 4.8(P=0.244) 0 vs 0 NR NR NR Chang[11](2017) 成人 核苷(酸)类似物vs非治疗 NR 70.4 vs 29.1(P<0.001)1) NR 18.3 vs 14.4(P=0.106) NR NR 0.189(P=0.004) 0.347(P=0.036) Feld[13](2019) 成人 恩替卡韦+ PEG-IFNα 48 93 3.57 3.57 0 0 NR NR Lau[19](2002) 成人 泛昔洛韦vs非治疗 78 NR2) NR 0 vs 0 NR NR NR NR Leung[20](2014) 成人 替诺福韦+替比夫定vs替诺福韦vs替比夫定 12 6.25 vs 0 vs 0(P=1.000)3)(P=1.000)4) 6.25 vs 0 vs 0(P=1.000)3)(P=1.000)4) NR NR NR NR NR Poddar[21](2013) 儿童 IFNα+拉米夫定vs非治疗 52 60.75) NR 39.3 vs 0(P<0.001) 17.9 vs 0(P=0.036) NR NR NR Wu[22](2019) 成人 替诺福韦+替比夫定vs替诺福韦 48 96.6 vs 85.2(P=0.028) NR 8.3 vs 3.3(P=0.233) NR 0 vs 0 NR NR Zhu[23](2018) 儿童 IFNα/ IFNα+拉米夫定vs非治疗 72 67.39 vs 4.53(P<0.001) NR 21.74 vs 4.53(P=0.131) 19.75 vs 0(P=0.058) 0 vs 0 NR NR 注:NR,未报告。1)在第48周时的HBV DNA阴转率; 2)文章提供了治疗过程中的HBV DNA水平变化图; 3)替诺福韦+替比夫定vs替诺福韦; 4)替诺福韦+替比夫定vs替比夫定; 5)治疗组中的HBV DNA阴转率。 表 5 抗病毒治疗的长期有效性分析
纳入研究 研究人群 抗病毒方案 随访时间(周) 治疗时间(周) 治疗结束后随访 治疗中病毒学复发 治疗结束后HBV DNA水平变化 治疗结束后HBeAg转换率变化(%) Artan[17](2005) 儿童 拉米夫定 150 150 否 是 NR NR Chan[18](2014) 成人 替诺福韦+恩曲他滨vs替诺福韦 192 192 否 否 NR NR Chang[11](2017) 成人 核苷(酸)类似物 285 NR 否 否 NR NR Feld[13](2019) 成人 恩替卡韦+ PEG-IFNα 96 48 是 否 上升 稳定 Lau[19](2002) 成人 泛昔洛韦 78 26 是 否 上升 稳定 Zhu[23](2018) 儿童 IFNα/ IFNα+拉米夫定 96 72 是 否 下降 上升 注:NR,未报告。 表 6 抗病毒治疗的安全性评价
纳入研究 抗病毒策略 药物相关不良反应发生率 药物相关严重不良反应发生率(%) Chan[18](2014) 替诺福韦+恩曲他滨vs替诺福韦 8.1% vs 6.3%(P=0.742) 0 Feld[13](2019) 恩替卡韦+PEG-IFNα 33% 4.8 Leung[20](2014) 替诺福韦+替比夫定vs替诺福韦vs替比夫定 25% vs 14.3% vs 0(P=0.6571); P=0.1012)) 0 Poddar[21](2013) IFNα+拉米夫定vs非治疗 100% 0 Wu[22](2019) 替诺福韦+比夫定vs替诺福韦 5.0% vs 3.3% (P=0.66) 0 Zhu[23](2018) IFNα/IFNα+拉米夫定vs非治疗 NR 0 注:1)替诺福韦+替比夫定vs替诺福韦组; 2)替诺福韦+替比夫定vs替比夫定组。NR,未报告。 -
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