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 treatment comprises administering at least two direct acting antiviral agents without interferon and ribavirin to a subject with HCV infection, wherein the treatment lasts for 12 weeks, and said at least two direct acting antiviral agents comprise (a) Compound 1 or a pharmaceutically acceptable salt thereof and (b) Compound 2 or a pharmaceutically acceptable salt thereof.本發明之特徵在於用於治療HCV之無干擾素及利巴韋林(ribavirin)之療法。較佳地,該治療係持續較短之治療時間,例如不超過12週。在一個態樣中,該治療包括在無干擾素及利巴韋林之情形下向感染HCV之個體投與至少兩種直接作用性抗病毒劑,其中該治療持續12週,且該至少兩種直接作用性抗病毒劑包含(a)化合物1或其醫藥上可接受之鹽及(b)化合物2或其醫藥上可接受之鹽。