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. Author manuscript; available in PMC: 2020 Sep 8.
Published in final edited form as: Hepatology. 2009 Apr;49(4):1335–1374. doi: 10.1002/hep.22759

Figure 1.

Figure 1

Graphic display of virological responses. RVR, rapid virological response (clearance of HCV from serum by week 4 using a sensitive PCR-based assay); EVR, early virological response (≥2 log reduction in HCV RNA level compared to baseline HCV RNA level or HCV RNA negative at treatment week 12); SVR, sustained virological response (HCV RNA negative 24 weeks after cessation of treatment); relapse, reappearance of HCV RNA in serum after therapy is discontinued; nonresponder, failure to clear HCV RNA from serum after 24 weeks of therapy; partial nonresponder, 2 log decrease in HCV RNA but still HCV RNA positive at week 24; null nonresponder, failure to decrease HCV RNA by < 2 logs after 24 week of therapy.