The present invention features interferon- and ribavirin-free therapies for the treatment of HCV. Preferably, the treatment is over a shorter duration of treatment, such as no more than 12 weeks. In one aspect, the therapies comprise administering at least two direct acting antiviral agents without interferon and ribavirin to a subject with HCV infection. For example, the therapies comprise administering to a subject an effective amounts of therapeutic agent 1, therapeutic agent 2 (or therapeutic agent 3), and an inhibitor of cytochrome P450 (e.g., ritonavir).本發明之特徵為用於治療HCV之無干擾素及無病毒唑的療法。該治療較佳歷經較短之治療持續時間,諸如不超過12週。在一個態樣中,該等療法包含在不存在干擾素及病毒唑的情況下向感染HCV之個體投與至少兩種直接作用抗病毒劑。舉例而言,該等療法包含向個體投與有效量之治療劑1、治療劑2(或治療劑3)及細胞色素P450抑制劑(例如利托那韋)。