Clinical Study

Add-on Pegylated Interferon Alpha-2a Therapy in Chronic Hepatitis B Japanese Patients Treated with Entecavir

Table 2

Comparison of pre- and on-treatment factors between the viral response and no viral response groups.

FactorsVR ()No VR ()

Age (years) (range)52 (36–62)44 (30–65)0.211
Sex (male/female)10/26/50.193
Body weight (kg)65.9 (53.0–91.0)56.6 (45–110.5)0.104
BMI (kg/m2)23.9 (17.9–30.1)21.2 (17.9–32.3)0.151
Prior interferon therapy250.193
History of HCC treatment420.640
Genotype B/C1/111/101.000
Duration of prior entecavir (days)1831 (560–2275)1316 (371–2410)0.190
HBe Ag positive441.000
HBV-DNA (log IU/mL)2.1 (0–2.1)2.1 (0–2.4)0.740
HBs Ag (IU/mL)1358 (112–5807)1546 (778–19674)0.651
Liver cirrhosis740.414
IL28B (rs8099917) major1190.590
White blood cell (/mm3)4765 (3260–9100)5230 (2920–6630)0.740
Hemoglobin (g/dL)14.9 (14.0–15.8)14.6 (12.0–16.5)0.379
Platelets (×104/mm3)18.8 (9.3–28.4)17.1 (10.4–25.2)0.487
AST (IU/L)25 (14–34)23 (14–31)0.449
ALT (IU/L)24 (16–47)17 (10–32)0.032
GTP (IU/L)29 (13–81)22 (11–82)0.288
AFP (ng/mL)2.2 (1.0–6.9)2.7 (1.2–4.6)0.651
Type IV collagen 7S (ng/mL)3.8 (2.5–5.4)3.5 (2.7–4.7)0.833
Hyaluronic acid (ng/mL)62 (10–266)44 (26–94)0.379
HBs Ag at week 4 (IU/mL)1434 (101–5525)1637 (694–21699)0.651
Percentage reduction of HBs Ag at week 46 (−35–32)−1 (−12–21)0.880
HBs Ag at week 8 (IU/mL)1159 (118–4286)1544 (608–19397)0.288
Percentage reduction of HBs Ag at week 822 (−5–51)1 (−37–38)0.091
HBs Ag at week 12 (IU/mL)857 (57–4391)1575 (591–23678)0.134
Percentage reduction of HBs Ag at week 1235 (−4–58)9 (−29–41)0.004
HBs Ag at week 16 (IU/mL)966 (2–3703)1329 (570–27476)0.190
Percentage reduction of HBs Ag at week 1632 (13–98)14 (−40–36)0.007

VR, viral response; HCC, hepatocellular carcinoma; HBe Ag, hepatitis B e antigen, HBs Ag, hepatitis B surface antigen; HBV, hepatitis B virus; IL, interleukin; ALT, alanine aminotransferase; GTP, -glutamyltransferase.
Values are expressed as medians (range) or numbers of patients (percent).