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  • Title: Short versus standard treatment with pegylated interferon alfa-2A plus ribavirin in patients with hepatitis C virus genotype 2 or 3: the cleo trial.
    Author: Mecenate F, Pellicelli AM, Barbaro G, Romano M, Barlattani A, Mazzoni E, Bonaventura ME, Nosotti L, Arcuri P, Picardi A, Barbarini G, D'Ambrosio C, Paffetti A, Andreoli A, Soccorsi F, Club Epatologi Ospedalieri (CLEO) Group.
    Journal: BMC Gastroenterol; 2010 Feb 19; 10():21. PubMed ID: 20170514.
    Abstract:
    BACKGROUND: In patients with chronic hepatitis C virus (HCV) genotype 2 or 3, 24 weeks' treatment with pegylated interferon alfa (PEG-IFN-alpha) and ribavirin induces a sustained virological response (SVR) in almost 80% of cases. Evidence suggests that a similar response rate may be obtained with shorter treatment periods, especially in patients with a rapid virological response (RVR). The aim of this study was to compare the efficacy of 12 or 24 weeks of treatment in patients with chronic HCV genotype 2 or 3 and to identify patients suitable for 12 weeks treatment. METHODS: Two hundred and ten patients received PEG-IFN-alpha-2a (180 ug/week) and ribavirin (800-1200 mg/day) for 4 weeks. Patients with a RVR (HCV RNA not detectable) were randomized (1:1) to either 12 (group A1) or 24 (group A2) weeks of combination therapy. Patients without a RVR continued with 24-weeks' combination therapy (group B). HCV RNA was monitored at weeks 4, 8, 12, and 24, and at week 24 post-treatment. RESULTS: At study end, end of treatment response (ETR) was observed in 62 (86%) patients of group A1 and in 55 (77%) patients of group A2 (p < 0.05) Relapse rate was 3% each in groups A1 and A2, and 6% in group B. Among patients with a HCVRNA test 24 weeks after the end of treatment, SVR was observed in 60 (83%) of group A1 patients and in 53 (75%) of group A2 patients. Rapid virological response, low baseline HCV RNA levels, elevated alanine aminotransferase levels and low fibrosis score, were the strongest covariates associated with SVR, independent of HCV genotype. No baseline characteristic was associated with relapse. CONCLUSION: In HCV patients with genotype 2 or 3, 12-week combination therapy is as efficacious as 24-week therapy and several independent covariates were predictive of SVR. TRIAL REGISTRATION: Trial number ISRCTN29259563.
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