Interferon alfa therapy emerged as an early treatment option for patients with chronic
hepatitis C. This therapy, however, fails to produce a sustained virological response
in most patients. Various host and viral baseline characteristics, some of which include
hepatitis C virus genotype, viral load, presence of cirrhosis, and patient age, affect
the response to interferon therapy. The addition of ribavirin to interferon therapy
significantly improves long-term virological response in treatment-naive patients
and is also more effective than repeat interferon therapy is in patients who fail
to initially achieve sustained virological or biochemical responses. However, ribavirin
can induce reversible hemolytic anemia, and combination therapy with a ribavirin/interferon
regimen is not tolerated as well as interferon is alone. Pegylated interferons used
alone or in combination with ribavirin provide improved treatment options for different
patient groups with chronic hepatitis C.
KEYWORDS
Interferon - ribavirin - hepatitis C - sustained virological response - fibrosis
REFERENCES
- 1
Hoofnagle J H, Mullen K D, Jones D B et al..
Treatment of chronic non-A, non-B hepatitis with recombinant human alpha interferon.
N Engl J Med.
1986;
315
1575-1578
- 2
Di Bisceglie A M, Martin P, Kassianides C et al..
Recombinant interferon alfa therapy for chronic hepatitis C. A randomized, double-blind,
placebo-controlled trial.
N Engl J Med.
1989;
321
1506-1510
- 3
Davis G L, Balart L A, Schiff E R et al..
Treatment of chronic hepatitis C with recombinant interferon alfa. A multicenter randomized,
controlled trial. Hepatitis Interventional Therapy Group.
N Engl J Med.
1989;
321
1501-1506
- 4
Choo Q L, Kuo G, Weiner A J et al..
Isolation of a cDNA clone derived from a blood-borne non-A, non-B viral hepatitis
genome.
Science.
1989;
244
359-362
- 5
Pockros P J, Tong M, Lee W M et al..
Relationship between biochemical and virological responses to interferon therapy in
chronic hepatitis C infection.
J Viral Hepat.
1998;
5
271-276
- 6
Dorr R T.
Interferon-alfa in malignant and viral diseases. A review.
Drugs.
1993;
45
177-211
- 7
Tilg H.
New insights into the mechanisms of interferon alfa: an immunoregulatory and anti-inflammatory
cytokine.
Gastroenterology.
1997;
112
1017-1021
- 8
Nieforth K A, Nadeau R, Patel I H, Mould D.
Use of an indirect pharmacodynamic stimulation model of MX protein induction to compare
in vivo activity of interferon alfa-2a and a polyethylene glycol-modified derivative
in healthy subjects.
Clin Pharmacol Ther.
1996;
59
636-646
- 9
Poynard T, Leroy V, Cohard M et al..
Meta-analysis of interferon randomized trials in the treatment of viral hepatitis
C: effects of dose and duration.
Hepatology.
1996;
24
778-789
- 10
Thevenot T, Regimbeau C, Ratziu V et al..
Meta-analysis of interferon randomized trials in the treatment of viral hepatitis
C in naive patients: 1999 update.
J Viral Hepat.
2001;
8
48-62
- 11
Lindsay K L, Davis G L, Schiff E R et al..
Response to higher doses of interferon alfa-2b in patients with chronic hepatitis
C: a randomized multicenter trial. Hepatitis Interventional Therapy Group.
Hepatology.
1996;
24
1034-1040
- 12
Shiffman M L.
Use of high-dose interferon in the treatment of chronic hepatitis C.
Semin Liver Dis.
1999;
19(suppl 1)
25-33
- 13
Hoofnagle J H, Lau D, Conjeevaram H et al..
Prolonged therapy of chronic hepatitis C with ribavirin.
J Viral Hepat.
1996;
3
247-252
- 14
Bodenheimer H C, Lindsay K L, Davis G L et al..
Tolerance and efficacy of oral ribavirin treatment of chronic hepatitis C: a multicenter
trial.
Hepatology.
1997;
26
473-477
- 15
Di Bisceglie A M, Conjeevaram H S, Fried M W et al..
Ribavirin as therapy for chronic hepatitis C.
Ann Intern Med.
1995;
123
897-903
- 16
Dusheiko G, Main J, Thomas H et al..
Ribavirin treatment for patients with chronic hepatitis C: results of a placebo-controlled
study.
J Hepatol.
1996;
25
591-598
- 17
Tam R C, Ramasamy K, Bard J et al..
The ribavirin analog ICN 17261 demonstrates reduced toxicity and antiviral effects
with retention of both immunomodulatory activity and reduction of hepatitis-induced
serum alanine aminotransferase levels.
Antimicrob Agents Chemother.
2000;
44
1276-1283
- 18
Brillanti S, Garson J, Foli M et al..
A pilot study of combination therapy with ribavirin plus interferon alfa for interferon-alfa-resistant
chronic hepatitis C.
Gastroenterology.
1994;
107
812-817
- 19
Lai M-Y, Kao J-H, Yang P-M et al..
Long-term efficacy of ribavirin plus interferon alfa in the treatment of chronic hepatitis
C.
Gastroenterology.
1996;
111
1307-1312
- 20
McHutchison J G, Gordon S C, Schiff E R et al..
Interferon alfa-2b alone or in combination with ribavirin as initial treatment for
chronic hepatitis C.
N Engl J Med.
1998;
339
1485-1492
- 21
Poynard T, Marcellin P, Lee S S et al..
Randomised trial of interferon alpha2b plus ribavirin for 48 weeks or for 24 weeks
versus interferon alpha2b plus placebo for 48 weeks for treatment of chronic infection
with hepatitis C virus.
Lancet.
1998;
352
1426-1432
- 22
Reichard O, Nokrans G, Fryden A et al..
Randomised, double-blind, placebo-controlled trial of interferon alfa-2b with and
without ribavirin for chronic hepatitis C.
Lancet.
1998;
351
83-87
- 23
Davis G L, Esteban-Mur R, Rustgi V et al..
Interferon alfa-2b alone or in combination with ribavirin for the treatment of relapse
of chronic hepatitis C.
N Engl J Med.
1998;
339
1493-1499
- 24
Schalm S W, Weiland O, Hansen B E et al..
Interferon-ribavirin for chronic hepatitis C with and without cirrhosis: analysis
of individual patient data of six controlled trials.
Gastroenterology.
1999;
117
408-413
- 25
National Institutes of Health .
National Institutes of Health Consensus Development Conference Statement. Management
of hepatitis C: June 10-12, 2002.
Hepatology.
2002;
36(suppl 1)
S3-S20
- 26
EASL International Consensus Conference on Hepatitis C .
Paris 26-28, February 1999. Consensus statement. European Association for the Study
of the Liver.
J Hepatol.
1999;
30
956-961
- 27
Idilman R, De Maria M, Colantoni A A D, van Thiel D H.
Interferon treatment of cirrhotic patients with chronic hepatitis C.
J Viral Hepat.
1997;
4
81-91
- 28
Poynard T, McHutchison J, Goodman Z et al..
Is an “a la carte” combination interferon alfa-2b plus ribavirin regimen possible
for the first line treatment in patients with chronic hepatitis C?.
Hepatology.
2000;
31
211-218
- 29
McHutchison J G, Shad J A, Gordon S C et al..
Predicting response to initial therapy with interferon plus ribavirin in chronic hepatitis
C using serum HCV RNA results during therapy.
J Viral Hepat.
2001;
8
414-420
- 30
McHutchison J G, Ware J E, Bayliss M S et al..
The effects of interferon alpha-2b in combination with ribavirin on health related
quality of life and work productivity.
J Hepatol.
2001;
34
140-147
- 31
Westin J, Lindh M, Nenonen N et al..
Monitoring virological responses to interferon-ribavirin and interferon monotherapy
of chronic hepatitis C re-treated due to relapse or non-response.
Scand J Infect Dis.
2001;
33
110-115
- 32
McHutchison J G, Manns M, Patel K et al..
Adherence to combination therapy enhances sustained response in genotype-1-infected
patients with chronic hepatitis C.
Gastroenterology.
2002;
123
1061-1069
- 33
Camma C, Giunta M, Linea C, Pagliaro L.
The effect of interferon on the liver in chronic hepatitis C: a quantitative evaluation
of histology by meta-analysis.
J Hepatol.
1997;
26
1187-1199
- 34
Carithers Jr R L, Emerson S S.
Therapy of hepatitis C: meta-analysis of interferon alfa-2b trials.
Hepatology.
1997;
26(suppl 1)
83S-88S
- 35
Bedossa P, Bioulacsage P, Callard P et al..
Presentation of a coded form for the assessment of histopathological features in viral
chronic hepatitis-C.
Ann Pathol.
1993;
13
260-265
- 36
Bedossa P, Bioulacsage P, Callard P et al..
Which classification for chronic hepatitis? Lessons from hepatitis C virus.
Gastroenterol Clin Biol.
1994;
18
403-406
- 37
Shiffman M L, Hofmann C M, Contos M J et al..
A randomized, controlled trial of maintenance interferon therapy for patients with
chronic hepatitis C virus and persistent viremia.
Gastroenterology.
1999;
117
1164-1172
- 38
Sobesky R, Mathurin P, Charlotte F et al..
Modeling the impact of interferon alfa treatment on liver fibrosis progression in
chronic hepatitis C: a dynamic view.
Gastroenterology.
1999;
116
378-386
- 39
Poynard T, McHutchison J, Davis G L et al..
Impact of interferon alfa-2b and ribavirin on progression of liver fibrosis in patients
with chronic hepatitis C.
Hepatology.
2000;
32
1131-1137
- 40
Shiratori Y, Imazeki F, Moriyama M et al..
Histologic improvement of fibrosis in patients with hepatitis C who have sustained
response to interferon therapy.
Ann Intern Med.
2000;
132
517-524
- 41
Yoshida H, Arakawa Y, Sata M et al..
Interferon therapy prolonged life expectancy among chronic hepatitis C patients.
Gastroenterology.
2002;
123
483-491
- 42
Bonkovsky H L, Woolley J M.
Reduction of health-related quality of life in chronic hepatitis C and improvement
with interferon therapy. The Consensus Interferon Study Group.
Hepatology.
1999;
29
264-270
- 43
Ware J, Bayliss M S.
Health-related quality of life in chronic hepatitis C: impact of disease and treatment
response. The Interventional Therapy Group.
Hepatology.
1999;
3
550-555
- 44
Carithers Jr R L, Zeuzem S, Manns M P et al..
Multicenter, randomized, controlled trial comparing high dose daily induction interferon
plus ribavirin versus standard interferon alfa-2b plus ribavirin.
Hepatology.
2000;
32
317
Thierry PoynardM.D.
Hopital Pitie-Salpetriere, Service d'Hepatologie-Gastro
47/83 Boulevard de l'Hopital, Paris Cedex 13
75651, France
eMail: tpoynard@teaser.fr