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Catherine L Oberg, Robert J Hiensch, Hooman D Poor
OBJECTIVE: To report a case series of three patients with hepatitis C virus infection who all presented with severe type B lactic acidosis shortly after starting treatment with ombitasvir-paritaprevir-ritonavir-dasabuvir. DESIGN: Case series. SETTING: ICU. PATIENTS: Three patients, all who had HCV cirrhosis with mild hepatic impairment (Child-Pugh A) and had started taking ombitasvir-paritaprevir-ritonavir-dasabuvir within the preceding 2 weeks, presented with similar nonspecific symptoms of lethargy, fatigue, and nausea...
September 22, 2016: Critical Care Medicine
Jerika T Lam, Laura Salazar
PURPOSE: The pharmacology, pharmacokinetics, clinical efficacy, and safety of Viekira, as well as its place in hepatitis C virus (HCV) therapy, are reviewed. SUMMARY: Ombitasvir 25 mg-paritaprevir 150 mg-ritonavir 100 mg plus dasabuvir 250 mg (Viekira) is approved in the United States as a combination direct-acting antiviral agent for treatment-naive or treatment-experienced patients with HCV genotype 1 infection, including those with compensated cirrhosis. It is the first coformulated direct-acting antiviral that targets different stages of the virus's life cycle...
July 15, 2016: American Journal of Health-system Pharmacy: AJHP
Xingquan Zhang
Unlike human immunodeficiency virus (HIV) and hepatitis B virus (HBV), hepatitis C virus (HCV) infection is a curable disease. Current direct antiviral agent (DAA) targets are focused on HCV NS3/4A protein (protease), NS5B protein (polymerase) and NS5A protein. The first generation of DAAs includes boceprevir and telaprevir, which are protease inhibitors and were approved for clinical use in 2011. The cure rate for genotype 1 patients increased from 45% to 70% when boceprevir or telaprevir was added to standard PEG-IFN/ribavirin...
January 2016: Acta Pharmaceutica Sinica. B
Lisa A Raedler
No abstract text is available yet for this article.
March 2015: American Health & Drug Benefits
Parvez S Mantry, Lakshmikant Pathak
Hepatitis C virus (HCV) affects nearly 1.3% of US population and around 2% of people worldwide. It is associated with serious complication of Cirrhosis and Hepatocellular carcinoma leading to significant morbidity and mortality. Until now the only treatment option for this serious disease was interferon based therapy which had poor tolerance and at best SVR (Sustained virological response) in only 50% of cases. With the introduction of other direct - acting antiviral agents the treatment of HCV has been revolutionized with significantly high rates of cure...
2016: Expert Review of Anti-infective Therapy
Brian P Lam, Thomas Jeffers, Zahra Younoszai, Yousef Fazel, Zobair M Younossi
Chronic hepatitis C (CHC) affects over 185 million individuals worldwide, approximately 3% of the world's population. CHC can lead to quality of life impairment, cirrhosis, hepatocellular carcinoma (HCC), liver failure and liver-related death. While CHC has been associated with increases in HCC, liver-related mortality and all-cause mortality, being cured of CHC is associated with improvement in these outcomes. Older interferon-based regimens were complex and toxic and required 6-12 months of therapy, with cure rates averaging around 40-45% for HCV genotype 1...
September 2015: Therapeutic Advances in Gastroenterology
Sai Zhang, Nathaniel D Bastian, Paul M Griffin
BACKGROUND: The standard care of treatment of interferon plus ribavirin (plus protease inhibitor for genotype 1) are effective in 50 % to 70 % of patients with CHC. Several new treatments including Harvoni, Olysio + Sovaldi, Viekira Pak, Sofosbuvir-based regimens characterized with potent inhibitors have been approved by the Food and Drug Administration (FDA) providing more options for CHC patients. Trials have shown that the new treatments increased the rate to 80% to 95%, though with a substantial increase in cost...
2015: BMC Gastroenterology
Emma D Deeks
A fixed-dose tablet comprising ombitasvir (an NS5A replication complex inhibitor), paritaprevir (an NS3/4A protease inhibitor) and ritonavir (a cytochrome P450 inhibitor) taken in combination with dasabuvir (an NS5B polymerase inhibitor) is indicated for the treatment of chronic hepatitis C virus (HCV) genotype 1 infection in several countries, including the USA (copackaged as Viekira Pak(™)) and those of the EU (Viekirax(®) and Exviera(®)). In phase II and III trials, this interferon-free regimen, taken ± ribavirin, provided high rates of sustained virological response 12 weeks post-treatment in adults with chronic HCV genotype 1a or 1b infection, including those with compensated cirrhosis, liver transplants or HIV-1 co-infection...
June 2015: Drugs
(no author information available yet)
No abstract text is available yet for this article.
May 12, 2015: JAMA: the Journal of the American Medical Association
Kunj Gohil
Nivolumab (Opdivo) for unresectable or metastatic melanoma; ombitasvir/paritaprevir/ritonavir with dasabuvir (Viekira Pak) for hepatitis C virus infection; and olaparib (Lynparza) for ovarian cancer.
March 2015: P & T: a Peer-reviewed Journal for Formulary Management
David B Rein, John S Wittenborn, Bryce D Smith, Danielle K Liffmann, John W Ward
BACKGROUND: New hepatitis C virus (HCV) treatments deliver higher cure rates with fewer contraindications, increasing demand for treatment and healthcare costs. The cost-effectiveness of new treatments is unknown. METHODS: We conducted a microsimulation of guideline testing followed by alternative treatment regimens for HCV among the US population aged 20 and older to estimate cases identified, treated, sustained viral response, deaths, medical costs, quality-adjusted life-years (QALYs), and the incremental cost-effectiveness ratio (ICER) of different treatment options expressed as discounted lifetime costs and benefits from the healthcare perspective...
July 15, 2015: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
(no author information available yet)
No abstract text is available yet for this article.
February 2, 2015: Medical Letter on Drugs and Therapeutics
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