Treatment of Chronic Hepatitis C Infection with Interferon α-2 a in a Turkish Population

1996 ◽  
Vol 24 (1) ◽  
pp. 132-137 ◽  
Author(s):  
H Simsek ◽  
G Tatar ◽  
C Savas ◽  
H Telatar

Recombinant interferon (IFN) α has been shown to normalize the aminotransferase levels in approximately half of patients with chronic hepatitis C virus (HCV) infection. Twenty four patients with chronic HCV infection were treated with IFN α-2a subcutaneously, three times a week for 6 months. All patients responded to IFN therapy with a decrease of alanine aminotransferase (ALT) level. Thirteen out of 24 cases (54.2%) had normal ALT levels at the end of the sixth month of therapy. However, four of these complete responders (30.8%) relapsed during the 12 month follow-up. Relapse was high in the partial responder group (45.5%). Overall relapse rate was 37.5% at 6 months. HCV genotype II, which is associated with a low response rate to IFN was prevalent (85 – 87%) in our patient population. This study shows that interferon therapy can be effective in reducing transaminase levels in patients with chronic hepatitis C in a population with a high prevalence of HCV type II. The relapse rate after discontinuation of treatment, however, remains a problem.

1999 ◽  
Vol 41 (3) ◽  
pp. 183-189 ◽  
Author(s):  
Leda BASSIT ◽  
Luiz C. DA SILVA ◽  
Gabriela RIBEIRO-DOS-SANTOS ◽  
Geert MAERTENS ◽  
Flair J. CARRILHO ◽  
...  

The present study assessed the clinical significance of hepatitis C virus (HCV) genotypes and their influence on response to long term recombinant-interferon-alpha (r-IFN-<FONT FACE="Symbol">a</FONT>) therapy in Brazilian patients. One hundred and thirty samples from patients previously genotyped for the HCV and with histologically confirmed chronic hepatitis C (CH-C) were evaluated for clinical and epidemiological parameters (sex, age, time of HCV infection and transmission routes). No difference in disease activity, sex, age or mode and time of transmission were seen among patients infected with HCV types 1, 2 or 3. One hundred and thirteen of them were treated with 3 million units of r-IFN-<FONT FACE="Symbol">a</FONT>, 3 times a week for 12 months. Initial response (IR) was significantly better in patients with genotype 2 (100%) and 3 (46%) infections than in patients with genotype 1 (29%) (p < 0.005). Among subtypes, difference in IR was observed between 1b and 2 (p < 0.005), and between 1b and 3a (p < 0.05). Sustained response (SR) was observed in 12% for (sub)type 1a, 13% for 1b, 19% for 3a, and 40% for type 2; significant differences were found between 1b and 2 (p < 0.001), and between 1b and 3a (p < 0.05). Moreover, presence of cirrhosis was significantly associated with non response and response with relapse (p < 0.05). In conclusion, non-1 HCV genotype and lack of histological diagnosis of cirrhosis were the only baseline features associated with sustained response to treatment. These data indicate that HCV genotyping may have prognostic relevance in the responsiveness to r-IFN-<FONT FACE="Symbol">a</FONT> therapy in Brazilian patients with chronic HCV infection, as seen in other reports worldwide.


PLoS ONE ◽  
2013 ◽  
Vol 8 (4) ◽  
pp. e61568 ◽  
Author(s):  
Myrna L. Cozen ◽  
James C. Ryan ◽  
Hui Shen ◽  
Robert Lerrigo ◽  
Russell M. Yee ◽  
...  

Hepatology ◽  
1992 ◽  
Vol 16 (4) ◽  
pp. 882-885 ◽  
Author(s):  
Mercedes Ruiz-Moreno ◽  
Maria José Rua ◽  
Inmaculada Castillo ◽  
Maria Dolores García-Novo ◽  
Maravillas Santos ◽  
...  

Blood ◽  
1996 ◽  
Vol 87 (5) ◽  
pp. 1704-1709 ◽  
Author(s):  
JP Hanley ◽  
LM Jarvis ◽  
J Andrew ◽  
R Dennis ◽  
PC Hayes ◽  
...  

In this study, we assessed the effectiveness of interferon treatment in 31 hemophiliacs with chronic hepatitis C virus (HCV) infection. Interferon alfa-2a (3 MU three times weekly) was administered for 6 months. Response was assessed by both serial alanine transaminase (ALT) and HCV RNA levels measured by a sensitive semiquantitative polymerase chain reaction (PCR) method. HCV genotype was determined by restriction fragment length polymorphism (RFLP), and evidence of changing genotypes during interferon therapy was sought. Severity of liver disease was assessed by both noninvasive and invasive methods, including laparoscopic liver inspection and biopsy. Sustained normalization of ALT levels occurred in eight patients (28%), and seven (24%) became nonviremic as assessed by PCR (<80 HCV/mL). Responders universally cleared HCV RNA within 2 months of starting interferon. Genotype 3a was associated with a favorable response to interferon. No evidence was found for a change in circulating genotype in patients who failed to respond to interferon or who relapsed. This study confirms that response rates to interferon are low in hemophiliacs as compared with other groups with chronic HCV infection. We have also demonstrated that virus load measurement over the first 8 to 12 weeks of treatment is an extremely useful method to identify responders at an early stage.


2014 ◽  
Vol 76 (3) ◽  
pp. 197-207 ◽  
Author(s):  
Andreas Baranyi ◽  
Andreas Meinitzer ◽  
Csilla Putz-Bankuti ◽  
Rudolf Stauber ◽  
Hans-Peter Kapfhammer ◽  
...  

2005 ◽  
Vol 105 (Supplement) ◽  
pp. 1198-1201 ◽  
Author(s):  
Sotirios Tsiodras ◽  
Panagiota Drimala ◽  
Nick Stavreas ◽  
Marios Dachlythras ◽  
Anna Maria Alamani ◽  
...  

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