Generic VEL/SOF With or Without RBV for HIV/HCV Coinfected Patients

2017-08-16 16:08:21 | BioPortfolio


Data are limited regarding the effectiveness and safety of generic velpatasvir plus sofosbuvir (VEL/SOF) with or without ribavirin (RBV) for the treatment of hepatitis C virus (HCV) in patients with human immunodeficiency virus (HIV) coinfection. We aim to compare the effectiveness and safety of VEL/SOF with and without RBV for 12 weeks in HIV/HCV-coinfected and HCV-monoinfected patients The antiviral responses and the adverse events (AEs) are compare between the two groups. The characteristics potentially related to sustained virologic response 12 weeks off therapy (SVR12) are analyzed.


Due to the lack of effective vaccination and the shared routes of transmission, hepatitis C virus (HCV) infection remains a challenging co-morbidity in patients with human immunodeficiency virus (HIV) infection. It is estimated that approximately 2.3 million people are coinfected with HIV and HCV (HIV/HCV) in the world. Compared to patients with HCV monoinfection, HIV/HCV-coinfected patients tend to have higher serum HCV viral loads, faster hepatic fibrosis progression, and higher risks of hepatic decompensation. Following the commencement of scale-up antiretroviral therapy (ART) that decreases the HIV-related opportunistic infections and malignancies, the liver-related complications have now become the leading cause of morbidity and mortality in HIV/HCV-coinfected patients. On the other hand, the survival rate is improved if these patients achieve sustained virologic response (SVR) by anti-HCV agents.

On the basis of excellent efficacy and safety, treatment by interferon (IFN)-free direct acting antiviral agents (DAAs) has made a paradigm shift for HCV care. Velpatasvir (VEL) is an HCV non-structural protein 5A (NS5A) inhibitor and sofosbuvir (SOF) is an HCV NS5B nucleotide polymerase inhibitor. Both agents are active against HCV with pan-genotypic potency. A fixed-dose combination of VEL at a daily dosage of 100 mg and SOF at a daily dosage of 400 mg (VEL/SOF) with or without weight-based ribavirin (RBV) has been approved by U.S. Food and Drug Administration (FDA) and European Medicines Agency (EMA) to treat HCV genotype 1-6 patients with compensated and decompensated liver diseases, respectively. Recently, a phase 3 study of VEL/SOF to treat HCV infection in HIV-coinfected patients reveals that this regimen is safe and provides a high and comparable SVR rate to HCV-monoinfected patients.

Although treatment of HCV by IFN-free DAAs is considered highly efficacious and well tolerated, numerous HCV-infected individuals have limited access to the brand-name agents due to the lack of universal governmental reimbursement or private insurance support. Therefore, allowing the generic version of patented DAAs for HCV through voluntary or compulsory licensing may provide patients with greater access to new HCV treatment, particularly in resource-constrained countries. Regarding the real-world experiences of generic IFN-free DAAs, a recent report from China evaluated the effectiveness of a generic version of ledipasvir (LDV) plus SOF (LDV/SOF) with or without RBV for 8-12 weeks in 192 HCV genotype 1b (HCV-1b) patients. The overall SVR rates were excellent (96.8%-96.9%) and most patients tolerated the treatment well. Based on the encouraging results, we aim to evaluate the effectiveness and safety of a generic version of pan-genotypic VEL/SOF-based therapy for HCV in HIV-coinfected patients, and compare the performance of such a regimen in HCV-monoinfected patients.

Study Design


Hepatitis C Virus Infection, Response to Therapy of


Sofosbuvir and Velpatasvir, Ribavirin


National Taiwan University Hospital, Yun-Lin Branch




National Taiwan University Hospital

Results (where available)

View Results


Published on BioPortfolio: 2017-08-16T16:08:21-0400

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Medical and Biotech [MESH] Definitions

A uridine monophosphate analog inhibitor of HEPATITIS C VIRUS (HCV) polymerase NS5B that is used as an ANTIVIRAL AGENT in the treatment of CHRONIC HEPATITIS C.

A family of hepatotropic DNA viruses which contains double-stranded DNA genomes and causes hepatitis in humans and animals. There are two genera: AVIHEPADNAVIRUS and ORTHOHEPADNAVIRUS. Hepadnaviruses include HEPATITIS B VIRUS, duck hepatitis B virus (HEPATITIS B VIRUS, DUCK), heron hepatitis B virus, ground squirrel hepatitis virus, and woodchuck hepatitis B virus (HEPATITIS B VIRUS, WOODCHUCK).

INFLAMMATION of the LIVER in humans caused by HEPATITIS DELTA VIRUS, a defective RNA virus that can only infect HEPATITIS B patients. For its viral coating, hepatitis delta virus requires the HEPATITIS B SURFACE ANTIGENS produced by these patients. Hepatitis D can occur either concomitantly with (coinfection) or subsequent to (superinfection) hepatitis B infection. Similar to hepatitis B, it is primarily transmitted by parenteral exposure, such as transfusion of contaminated blood or blood products, but can also be transmitted via sexual or intimate personal contact.

INFLAMMATION of the LIVER in humans caused by HEPATITIS C VIRUS, a single-stranded RNA virus. Its incubation period is 30-90 days. Hepatitis C is transmitted primarily by contaminated blood parenterally, and is often associated with transfusion and intravenous drug abuse. However, in a significant number of cases, the source of hepatitis C infection is unknown.

A species in the genus HEPATOVIRUS containing one serotype and two strains: HUMAN HEPATITIS A VIRUS and Simian hepatitis A virus causing hepatitis in humans (HEPATITIS A) and primates, respectively.

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