Abstract
BACKGROUND AND OBJECTIVESThis study aimed to determine the end treatment response (ETR) and sustained viral response (SVR) to interferon (IFN) and ribavirin in hepatitis C virus (HCV) genotype 3 in the Pakistani population.DESIGN AND SETTINGSThis is an interventional study conducted from January 2010 to December 2012 in Lyari General Hospital and Abbasi Shaheed Hospital, Karachi, outpatients department.METHODSAll patients with chronic hepatitis C genotype 3 infections were included. Patients with decompensated chronic liver disease, or having coexisting hepatitis B virus/human immunodeficiency virus were excluded. All patients received IFN alpha, 3 million international units (MIU), subcutaneously 3 times weekly and ribavirin >800 mg/d for a period of 6 months. Outcome parameters included ETR (negative polymerase chain reaction [PCR] at the end of therapy), SVR (negative PCR both at the end of treatment and 6 months later), and relapse (PCR negative at the end of treatment but positive 6 months later) were determined.RESULTSA total of 1170 patients were included with a female to male ratio of 1.64:1 and a mean age of 31.6 (8.4) years. Among 1170 patients, 985 completed the therapy as per the protocol, 119 were defaulted (treatment abandoned before completion), and 66 had to stop treatment due to side effects. ETR was 74.1%, SVR was 98%, relapse rate was 1.5%, and 10.1% were nonresponders. SVR was seen only in patients who had achieved an ETR (n=867). SVR was achieved in 848 patients (out of 867) (98%), relapse was seen in 13 (1.5%), and 6 (0.7%) patients lost follow-up after stopping treatment. Patients achieving ETR and SVR had a mean serum alanine aminotransferase of 71.3 (57.1) and 71.0 (56.5), respectively, which is approximately twice the upper normal limit.CONCLUSIONThe conventional IFN and ribavirin therapy in genotype 3 chronic HCV-infected patients gives an ETR and SVR of 74.1% and 98%, respectively.
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