This is a randomized, multicenter, open-label trial of the combination regimen of MK-5172 (grazoprevir [GZR]) (100 mg), MK-3682 (450 mg) and MK-8408 (ruzasvir) (60 mg) for 16 weeks with ribavirin (RBV) or 24 weeks without RBV in cirrhotic (C) or non-cirrhotic (NC) hepatitis C virus (HCV) genotype

The primary objectives of this study are to evaluate the effect of Obeticholic Acid treatment compared to placebo on 1) histological improvement and 2) liver-related clinical outcomes in patients with non-cirrhotic nonalcoholic steatohepatitis (NASH) with liver fibrosis.

The primary objective of this study is to evaluate the safety and tolerability of GS-9674 in adults with primary biliary cholangitis (PBC).

The primary objective of this study is to evaluate whether selonsertib (SEL; GS-4997) can cause fibrosis regression and reduce progression to cirrhosis and associated complications in adults with NASH and bridging (F3) fibrosis.

The primary objective of this study is to evaluate whether selonsertib (SEL; GS-4997) can cause fibrosis regression and reduce associated complications in adults with cirrhosis due to NASH.

The purpose of this study is to confirm the efficacy and safety of cenicriviroc (CVC) for the treatment of liver fibrosis in adult subjects with Nonalcoholic Steatohepatitis (NASH).

The purpose of this study is to identify the safety, tolerability and maximum-tolerated-dose of the oral formulation of SLC-0111 in combination with IV gemcitabine in those with metastatic pancreatic ductal cancer.

The purpose of this study is to determine whether RPC1063 is effective in the treatment of Ulcerative Colitis (UC).

The purpose of the trial is to determine the safety and efficacy of RPC1063 in patients diagnosed with moderate to severe ulcerative colitis.

The primary objective of this study is to observe the long-term safety of filgotinib in adults who have completed or met protocol specified efficacy discontinuation criteria in a prior Gilead-sponsored filgotinib treatment study in ulcerative colitis (UC).

The purpose of this study is to evaluate endoscopic remission at Week 26 as assessed by ileocolonoscopy.

The study is to evaluate the long-term safety of oral GED-0301 (mongersen) in subjects with Crohn's Disease.

The primary objective of this study is to observe the long-term safety of filgotinib in adults who have completed or met protocol specified efficacy discontinuation criteria in a prior Gilead-sponsored filgotinib treatment study in Crohn's disease (CD).

This non-interventional clinical study will be conducted to prospectively collect serial plasma samples from subjects with chronic HBV infection who are initiating antiviral therapy.

This is a Phase 2, open-label,randomized, multiple dose, varied administration regimen study with 2 parts (Parts A and B) in Subjects Infected with Chronic Hepatitis B Virus

This three-year study (participants with chronic kidney disease [CKD] or cirrhosis will be followed for five years) multicenter study is being done to follow participants who received at least one dose of grazoprevir (MK-5172) in a previous study to determine if they remain hepatitis C virus (HCV

The main purpose of this study is to evaluate the durability of Sustained virologic response (SVR) in participants who achieved SVR at last post-therapy visit of parent studies (LPVPS) with NCT Numbers NCT02569710 and NCT02765490.