Twenty four-week peginterferon plus ribavirin after interferon-&beta; induction for genotype 1b chronic hepatitis C

doi:10.4254/wjh.v2.i6.226

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Jun 27, 2010 (publication date) through Apr 24, 2024

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World Journal of Hepatology

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1948-5182

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

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World J Hepatol. Jun 27, 2010; 2(6): 226-232
Published online Jun 27, 2010. doi: 10.4254/wjh.v2.i6.226

Table 1 Clinical background of patients

	Background
n of patients	71
Male [n (%)]	31 (44)
Age (yr)	63 (32-78)
Body weight > 60 kg [n (%)]	33 (46)
HCV-RNA (Log IU/mL)	6.1 (5.1-7.2)
Alanine aminotransferase (U/L)	97 (27-513)
Platelet count [× 10⁴/μL]	13.9 (9.1-30.6)
9.0 to 13.0 [n (% )]	28 (39)
≥ 13.0 [n (% )]	43 (61)
Albumin (g/dL)	3.9 (3.5-4.5)
Hemoglobin (g/dL)	13.6 (10.5-16.9)
Interferon-naïve [n (%)]	44 (62)
Peginterferon-α2a/-α2b (n)	34/37
Initial dose of ribavirin	38/30/3
600/800/1 000 (mg/d) (n)

Continuous variables: Median (range).

Table 2 Clinical background by therapeutic response

	Dosing duration of peginterferon plus ribavirin
	1-24 wk		20-24 wk
	SVR non-SVR	P value	SVR non-SVR	P value
n of patients	21		17
n of patients	40		14
Male [n (%)]	12 (57)	0.0636^b	10 (59)	0.1493^c
Male [n (%)]	13 (33)	0.0636^b	4 (29)	0.1493^c
Age (yr)	58 (35-74)	0.0030^a	58 (35-74)	0.0134^a
Age (yr)	65 (37-78)	0.0030^a	63 (58-71)	0.0134^a
Body weight > 60 kg [n (%)]	13 (62)	0.0441^b	10 (59)	0.0669^c
Body weight > 60 kg [n (%)]	14 (35)	0.0441^b	3 (21)	0.0669^c
HCV-RNA (Log IU/mL)	5.8 (5.1-6.9)	0.1685^a	6.0 (5.2-6.9)	0.9967^a
HCV-RNA (Log IU/mL)	6.1 (5.1-7.2)	0.1685^a	6.1 (5.2-6.6)	0.9967^a
Alanine amino-transferase (U/L)	97 (52-269)	0.7699^a	86 (57-138)	0.6410^a
Alanine amino-transferase (U/L)	93 (27-513)	0.7699^a	80 (28-260)	0.6410^a
Platelet count (× 10⁴/μL)	16.8 (10.9-30.6)	0.0020^a	17.0 (10.9-30.6)	0.0007^a
Platelet count (× 10⁴/μL)	13.3 (9.1-24.0)	0.0020^a	11.4 (9.1-15.4)	0.0007^a
Albumin (g/dL)	3.9 (3.5-4.4)	0.7410^a	3.9 (3.5-4.2)	0.9211^a
Albumin (g/dL)	3.9 (3.5-4.5)	0.7410^a	3.9 (3.5-4.5)	0.9211^a
Hemoglobin (g/dL)	14.4 (11.4-15.4)	0.0126^a	14.5 (11.4-15.4)	0.1379^a
Hemoglobin (g/dL)	13.1 (10.5-15.4)	0.0126^a	13.5 (10.7-15.4)	0.1379^a
Interferon-naïve [n (%)]	12 (57)	0.6847^b	9 (53)	0.8150^b
Interferon-naïve [n (%)]	25 (63)	0.6847^b	8 (57)	0.8150^b
Peginterferon-α2a/-α2b (n)	12/9	0.2016^b	9/8	0.4607^c
Peginterferon-α2a/-α2b (n)	16/24	0.2016^b	10/4	0.4607^c
Dosing duration of peginterferon (wk)	24 (4-24)	0.0009^a	24 (21-24)	0.5082^a
Dosing duration of peginterferon (wk)	15 (2-24)	0.0009^a	24 (21-24)	0.5082^a

Continuous variables: Median (range); Statistical analysis:

^aAnalysis of variance;

^bχ² test;

^cFisher’s exact test; SVR: Sustained virologic response.

Table 3 Nominal logistic regression analysis of clinical background variables related to an sustained virologic response (SVR)

Variable	Odds ratio (95% CI)	P value¹
Dosing duration of peginterferon: 1-24 wk (n = 61)
Age < 65 yr	1.3210 (0.2140-8.1481)	0.7586
Body weight > 60 kg	3.7283 (0.6986-25.865)	0.1257
Platelet count ≥ 130 000/μL	15.301 (2.5378-155.22)	0.0018
Hemoglobin ≥ 14.0 g/dL	4.7957 (0.9337-30.599)	0.0606
Dosing duration of Peg-IFN 20-24 wk (vs 1-19 wk)	33.551 (5.5858-352.77)	< 0.0001
Dosing duration of peginterferon: 20-24 wk (n = 31)
Age < 65 yr	1.1028 (0.1670-6.6558)	0.9149
Platelet count ≥ 130 000/μL	11.680 (2.3064-79.474)	0.0024

CI: Confidence interval;

¹Statistical analysis: Likelihood ratio test.

Table 4 HCV-RNA response during treatment and outcome

Response outcome	IFN-β¹n (%)¹	HCV-RNA¹	RVR n (%)	cEVR n (%)	ETR n (%)
Dosing duration of peginterferon: 1-24 wk (n = 61)
Yes	43 (70)	6.0 (5.1-7.1)^b	15 (25)	36 (59)	39 (64)
SVR	21 (49)^a	5.8 (5.1-6.9)	7 (47)	20 (56)^c	21 (54)^d
Non-SVR	22 (51)^a	6.0 (5.1-7.1)	8 (53)	16 (44)^c	18 (46)^d
No	18 (30)	6.2 (5.5-7.2)^b	46 (75)	25 (41)	22 (36)
SVR	0 (0)^a	-	14 (30)	1 (4)^c	0 (0)^d
Non-SVR	18 (100)^a	6.2 (5.5-7.2)	32 (70)	24 (96)^c	22 (100)^d
Dosing duration of peginterferon: 20-24 wk (n = 31)
Yes	25 (81)	6.0 (5.2-6.9)	11 (35)	24 (77)	24 (77)
SVR	17 (68)^e	6.0 (5.2-6.9)	7 (64)	17 (71)^f	17 (71)^g
Non-SVR	8 (32)^e	5.7 (5.2-6.6)	4 (36)	7 (29)^f	7 (29)^g
No	6 (19)	6.4 (5.5-6.6)	20 (65)	7 (23)	7 (23)
SVR	0 (0)^e	-	10 (50)	0 (0)^f	0 (0)^g
Non-SVR	6 (100)^e	6.4 (5.5-6.6)	10 (50)	7 (100)^f	7 (100)^g

¹Number (%) of patients that HCV-RNA decreased to below 3.3 Log IU/mL or turned negative at the end of IFN-β treatment, and median (range) of the HCV-RNA (Log IU/mL) before treatment among those patients. RVR: Rapid virologic response; cEVR: Complete early virologic response; ETR: End-of-treatment response.

^aP < 0.0001;

^bP < 0.05;

^cP < 0.001;

^dP< 0.0001;

^eP < 0.01;

^fP < 0.01;

^gP < 0.01; Statistical analysis:^{a, c, d, e, f, g}; Fisher’s exact test:^b; Analysis of variance.

Citation: Okushin H, Morii K, Uesaka K, Yuasa S. Twenty four-week peginterferon plus ribavirin after interferon-β induction for genotype 1b chronic hepatitis C. World J Hepatol 2010; 2(6): 226-232
URL: https://www.wjgnet.com/1948-5182/full/v2/i6/226.htm
DOI: https://dx.doi.org/10.4254/wjh.v2.i6.226