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Sustained suppression of hepatitis C virus by high doses of interferon and ribavirin in adult hemophilic patients
Author(s) -
Santagostino E.,
De Filippi F.,
Rumi M. G.,
Rivi M.,
Colombo M.,
Mannucci P. M.
Publication year - 2004
Publication title -
transfusion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.045
H-Index - 132
eISSN - 1537-2995
pISSN - 0041-1132
DOI - 10.1111/j.1537-2995.2004.03154.x
Subject(s) - ribavirin , medicine , virology , interferon , virus , hepatitis c virus , gastroenterology , immunology
BACKGROUND: In a recent randomized controlled study, only a minority (15%) of adult hemophiliacs with chronic HCV achieved a sustained virologic response to treatment with interferon (IFN) and ribavirin given at standard doses. STUDY DESIGN AND METHODS: Whether the therapeutic response might be improved in these patients by increasing the doses of IFN was evaluated. Thirty‐four previously untreated, adult hemophiliacs with chronic HCV but negative for HIV were investigated. There were 33 men and 1 woman, aged 21 to 60 years (mean, 36). Twenty‐three patients (68%) had genotype 1, and median serum HCV‐RNA was 473 × 10 3 IU per L (range, 3.6‐2145). Patients were treated with IFN at 5 million units (MU) thrice weekly for 6 months, followed by 3 mol/L for 6 additional months in combination with daily oral doses of 1 or 1.2 g of ribavirin. RESULTS: A total of 33 patients (97%) completed the study; one patient withdrew because of treatment‐related symptoms. Treatment dosage had to be reduced in 20 patients (59%). By intention‐to‐treat analysis, 14 patients (41%) had a sustained virologic response, particularly those infected by HCV genotype 2 or 3 (70% vs. 29% with genotype 1 or 4, p < 0.05). Sustained response rates were similar in the 13 compliant patients and the 20 patients who had to reduce IFN and/or ribavirin doses (54% vs. 35%). CONCLUSIONS: High‐dose IFN therapy plus ribavirin provided high rates of sustained virologic responses in adult hemophiliacs with chronic HCV, even if side‐effects led to dose reduction in half of these patients.