Conditions: Hepatitis C, Chronic
Keywords: Hepatitis C Virus Ribavirin-Free Hepatitis C Genotype 1 Hepatitis C Interferon-Free Chronic Hepatitis C Compensated cirrhosis Hepatitis C Genotype 4 Paritaprevir Ombitasvir Ritonavir Ribavirin
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 316
Healthy volunteers: no

Brief summary:
The purpose of this study is to evaluate the safety and efficacy of co-administration of ABT-450 (also known as paritaprevir) with ritonavir (ABT-450/r) and ABT-267 (also known as ombitasvir) in adults with chronic hepatitis C virus infection.

Detailed description:
This was a Phase 2, randomized, open-label, combination treatment study of the 2-DAA regimen (ABT-450 150 mg QD + ritonavir 100 mg QD + ABT-267 25 mg QD) in adult HCV GT1b-infected treatment-naïve and Pegylated-interferon/ribavirin (pegIFN/RBV) treatment-experienced participants without cirrhosis and with compensated cirrhosis, and in adult GT4-infected treatment-naïve and pegIFN/RBV treatment-experienced participants without cirrhosis. Treatment Group 5 was not open to enrollment, based on a protocol-specified interim review of results from the treatment-naïve GT4 Groups 1 and 4 that indicated higher sustained virologic response (SVR) rates among participants receiving the 2-DAA regimen with RBV. All other groups completed the study.

Arms:
arm 1: ABT-450 150 mg/ r 100 mg, and ABT-267 25 mg once daily for 12 weeks to adult noncirrhotic, treatment-naïve, HCV GT4-infected participants arm 2: ABT-450 150 mg/ r 100 mg, and ABT-267 25 mg once daily for 12 weeks to adult noncirrhotic, treatment-naïve HCV GT1b-infected participants arm 3: ABT-450 150 mg/ r 100 mg, and ABT-267 25 mg once daily for 12 weeks to adult noncirrhotic, HCV GT1b-infected, pegylated-interferon/ribavirin (pegIFN/RBV) treatment null responder participants arm 4: ABT-450 150 mg/ r 100 mg, ABT-267 25 mg , once daily and weight-based ribavirin (RBV; 1,000 mg/day if \< 75 kg or 1,200 mg/day if ≥ 75 kg, divided twice daily) for 12 weeks to adult noncirrhotic, treatment-naïve, HCV GT4-infected participants arm 5: ABT-450 150 mg/ r 100 mg, and ABT-267 25 mg once daily for 12 weeks to adult noncirrhotic, treatment-experienced, HCV GT4-infected participants arm 6: ABT-450 150 mg/ r 100 mg, ABT-267 25 mg , once daily and weight-based ribavirin (RBV; 1,000 mg/day if \< 75 kg or 1,200 mg/day if ≥ 75 kg, divided twice daily) for 12 weeks to adult noncirrhotic, HCV GT4-infected, pegylated-interferon/RBV (pegIFN/RBV) treatment-experienced participants arm 7: ABT-450 150 mg/ r 100 mg, and ABT-267 25 mg once daily for 24 weeks to adult, HCV GT1b-infected, treatment-naïve participants with compensated cirrhosis arm 8: ABT-450 150 mg/ r 100 mg, and ABT-267 25 mg once daily for 24 weeks to adult, HCV GT1b-infected, pegylated-interferon/RBV(pegIFN/RBV) treatment-experienced participants with compensated cirrhosis

Interventions: intervention 1: ABT-450/r intervention 2: ABT-267 intervention 3: Ribavirin (RBV)
Intervention descriptions: intervention 1: Tablet; ABT-450; Capsule; ritonavir intervention 2: Tablet intervention 3: Tablet

Protocol document: