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Table 4 Adverse events in all patients with chronic HCV infection

From: Multicenter comparison of PEG-IFN α2a or α2b plus ribavirin for treatment-naïve HCV patient in Korean population

Variables

Total

PEG-IFN alfa-2a

PEG-IFN alfa-2b

P*

 

(N=661)

(N=402)

(N=259)

 

Overall AE, N (%)

542 (82.0)

312 (77.6)

230 (88.8)

 

 Grade 1-2/3

493/49 (91.0/9.0)

288/24 (92.3/7.7)

205/25 (89.1/10.9)

0.23

Common AE, N (%)

    

  Flu-like symptoms

    

  Grade 1-2/3

421/0 (63.7/0)

229/0 (57.0/0)

192/0 (74.1/0)

<0.01

  GI symptoms

    

  Grade 1-2/3

152/11 (23.0/1.7)

82/6 (20.4/1.5)

70/5 (27.0/1.9)

0.12

 Dermatologic reactions

    

  Grade 1-2/3

74/2 (11.2/0.3)

38/1 (9.5/0.2)

36/1 (13.9/0.4)

0.19

  Emotional friability

    

  Grade 1-2/3

183/23 (27.7/3.5)

102/11 (25.4/2.7)

81/12 (31.3/4.6)

0.08

 Alopecia

    

  Grade 1-2/3

96/20 (14.5/3.0)

50/7 (12.4/1.7)

46/13 (17.8/5.0)

<0.01

Hematologic events, N (%)

    

 ANC, <500/mm3

3 (0.5)

0 (0)

3 (1.2)

0.06

 Hemoglobin, <8.5 g/dL

25 (3.8)

15 (3.7)

10 (3.9)

1.00

 Platelet, <25,000/mm3

6 (0.9)

6 (1.5)

0 (0)

0.09

Serious AE, N (%)

    

 Severe infection or death

2 (0.3)

2 (0.5)

0 (0)

0.52

Patients who did not meet 80/80/80 rule

181 (27.4)

118 (29.4)

63 (24.3)

0.18

 Dose modification, N (%)

82 (45.3)

58 (49.23)

24 (38.1)

0.16

 Discontinuation, N (%)

99 (54.7)

60 (60.6)

39 (39.4)

0.52

  AE/hematologic event

47 (47.5)

27 (45.0)

20 (51.3)

0.68

  Non-virologic response

18 (18.2)

10 (16.7)

8 (20.5)

0.79

  Incidental severe infection

2 (2.0)

2 (3.3)

0 (0)

0.52

  Follow-up loss

32 (32.3)

21 (35.0)

11 (28.2)

0.48

  1. Abbreviation: HCV, hepatitis C virus; AE, adverse event; GI, gastrointestinal; ANC, absolute neutrophil count; PEG-IFN, peg-interferon; NA, not available.
  2. *P-value stands for comparison of the frequency of adverse event or each variable between the PEG-IFN alfa-2a and PEG-IFN alfa-2b groups.
  3. Most severe grade among adverse events that patients had experienced during treatment.
  4. If the number of patients was smaller than 5, Fisher’s exact test was used.