阿德福韦酯治疗e抗原阳性慢性乙型肝炎的疗效预测指标探讨

目的 评价HBeAg阳性慢性乙型肝炎患者治疗前ALT、HBeAg、HBV DNA水平以及治疗12周时HBV抑制程度对阿德福韦酯(ADV)治疗52周患者疗效的预测价值.方法 98例HBeAg阳性成年慢性乙型肝炎患者进入研究.筛选时血浆HBV DNA定量≥1×106拷贝/ml,血清ALT水平1.5～10倍正常值上限(ULN).患者接受ADV 10mg/d,共52周治疗.定期随访,检测血清HBV标志物及HBV DNA.比较不同基线ALT、HBeAg、HBV DNA水平以及治疗12周时不同血清HBV DNA水平患者治疗52周时的疗效差异. 结果 ADV治疗52周时,血清HBV DNA＜103拷贝/ml的患者,基线ALT＞5 × ULN者(72.7%)高于ALT＜2×ULN者(38.0%),P＜0.05;基线HBeAg≤350 s/co者(66.7%)高于HBeAg＞350 s/co者(30.2%),P＜0.01;基线HBV DNA≤108拷贝/ml者(53.0%)高于血清HBV DNA＞108拷贝/ml者(34.4%),P＜0.05.52周HBeAg血清学转换率在基线HBeAg水平≤350 s/co者和HBeAg＞350 s/co者分别为42.2%和7.5%(P＜0.01).治疗12周时血清HBV DNA＜103拷贝/ml、103～105拷贝/ml和＞105拷贝/ml组患者,52周时血清HBV DNA＜103拷贝/ml的比例分别为82.6%、57.1%和17.5%,组间差异均有统计学意义(P值均＜0.05);3组患者HBeAg血清学转换率分别为52.2%、25.7%和5.0%,组间差异均有统计学意义(P值均＜0.05);3组患者52周ALT复常率分别为100%、83%和75%,血清HBV DNA＜103拷贝/ml组高于＞105拷贝/ml组(P＜0.05).相关分析显示,治疗52周时的血清HBV DNA水平及HBeAg血清转换与治疗12周时血清HBV DNA水平中度相关(P＜0.01).结论 HBeAg阳性慢性乙型肝炎患者ADV治疗12周时血清HBV DNA水平对治疗52周的疗效的预测价值优于基线指标,治疗12周时血清HBV DNA＜103拷贝/ml者,52周时能达到更佳的疗效.

The predictive value of ALT, HBeAg and HBV DNA levels at baseline and the degree of HBV suppression at week 12 adefovir dipivoxil treatment to the efficacy of it at week 52 in patients with HbeAg-positive chronic hepatitis B

OBJECTIVE: To study the predictive value of ALT, HBeAg and HBV DNA levels at baseline and HBV DNA levels at week 12 adefovir dipivoxil (ADV) treatment to the efficacy of it at week 52 in patients with HBeAg-positive chronic hepatitis B (CHB). METHODS: Ninety-eight HBeAg-positive CHB patients with serum HBV DNA>or=1x10(6) copies/ml and ALT levels between 1.5 to 10 times of upper limits of normal (ULN) were enrolled in the study. Ten mg/d of ADV was administered for 52 weeks. Line serum samples were collected for measuring HBV DNA and HBV markers. The efficacy of the treatment at week 52 was evaluated in patients with different ALT, HBeAg and HBV DNA levels at baseline and HBV DNA levels at week 12 after treatment. RESULTS: At week 52 of ADV treatment, the rates of HBV DNA<10(3) were 72.7%, 66.7% and 53.0% respectively in patients with ALT>5xULN, HBeAg350 s/co (30.2%, P<0.01) and HBV DNA>10(8) copies/ml (34.4%, P<0.05) at baseline. HBeAg seroconversion rates were 42.2% and 7.5% (P<0.01) in patients with HBeAg titer350 S/co at baseline. In patients with HBV DNA<10(3), 10(3)-10(5) and >10(5) copies/ml at week 12, the ratios of them with HBV DNA<10(3) less than 1000 copies/ml at week 52 were 82.6%, 57.1% and 17.5% and significant differences were found between these groups (P<0.05); HBeAg seroconversion rates were 52.2%, 25.7% and 5.0% (P<0.05); ALT normalization rates were 100%, 83% and 75%, significantly higher in patients with HBV DNA<10(3) copies/ml than those with HBV DNA>10(5) copies/ml (P<0.05) at week 12. HBV DNA and HBeAg seroconversion at week 52 correlated with HBV DNA levels at week 12 (r=0.6 and r=0.5 respectively, P<0.01). CONCLUSIONS: In HBeAg-positive CHB patients treated with adefovir dipivoxil, HBV DNA levels at week 12 can be used to predict the efficacy at week 52. HBV DNA<10(3) copies/ml at week 12 predict a better treatment result at week 52.