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  • Title: Pegylated interferon alfa and ribavirin for children with chronic hepatitis C.
    Author: Rosen I, Kori M, Eshach Adiv O, Yerushalmi B, Zion N, Shaoul R.
    Journal: World J Gastroenterol; 2013 Feb 21; 19(7):1098-103. PubMed ID: 23467199.
    Abstract:
    AIM: To study current treatment options for pediatric hepatitis C infection and their associated success rates. METHODS: We retrospectively reviewed charts of thirty children who had been treated with combination therapy of pegylated interferon alfa plus ribavirin for chronic hepatitis C infection. Patients had been treated with ribavirin (15 mg/kg per day) and either pegylated interferon alfa 2a (180 mg/m(2) once weekly) or pegylated interferon alfa 2b (1.5 mg/kg once weekly). Patients' follow-up included subjective assessment of complaints, physical examination including weight and height, as well as laboratory evaluations for viral load [before treatment, at 12 wk, and 6 mo following treatment completion, as determined by sustained viral response (SVR)], complete blood count, liver enzymes, alkaline phosphatase, bilirubin, renal function tests, and thyroid function tests. For patients not achieving a two log decrease in viral load at treatment week 12, treatment was discontinued and the patient was considered a treatment non-responder. RESULTS: Thirty children aged 3-18 years were included in the study. Twenty patients (11 males, 9 females) received pegylated interferon alfa 2b and ten patients (6 males, 4 females) received pegylated interferon alfa 2a. Twenty-three patients were infected with genotype 1, six patients were infected with genotype 3, and one patient was infected with genotype 2. Twenty patients (67%) achieved SVR. Treatment success rates were 90% with pegylated interferon alfa 2a vs 55% with pegylated interferon alfa 2b. Although a trend was noted for improved outcomes in the group receiving pegylated interferon alfa 2a, there were no statistically significant outcome differences between the two treatment groups (P = 0.1). Treatment success was 56.5% for patients infected with genotype 1 virus, compared to 100% for patients infected with other genotypes (P = 0.064). There was no difference in treatment response between males and females. A cut-off age of twelve years was used to dichotomize younger vs older participants; however, no difference in treatment response was observed between these groups. Using multivariate regression analysis, we could not determine predictors for achieving SVR from among the variables we examined (age, sex, and viral genotype). Although we noted a trend toward SVR with peginterferon alfa-2a, there was no statistical difference between the two peginterferons. A high incidence of adverse reactions to treatment was noted. Twenty-five patients (83%) suffered from at least one adverse reaction, but most experienced more than one adverse reaction. All patients except one became leukopenic (white blood cell count less than 5500 leukocytes/μL), six (20%) became anemic (hemoglobin less than 110 g/L), and one (3.3%) became thrombocytopenic (platelets less than 100 000/μL). CONCLUSION: Combination therapy to treat hepatitis C in children is as effective as in adults. There may be a benefit for treatment with pegylated interferon alfa 2a.
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