Abstract:
BACKGROUND:With 170 million people infected worldwide and an inadequate current standard of care, hepatitis C virus (HCV) infection represents a major unmet medical need. Multiple companies are working on the discovery and development of specific HCV antiviral drugs, including inhibitors of HCV polymerase, protease and NS5A. Because of the error-prone nature of viral RNA replication, resistance mutants will develop that could present a potentially significant challenge to developing antiviral treatment regimens. OBJECTIVE:Here, we review the major drug classes currently in preclinical and clinical development and the resistance mutations specific for each class that have been identified from cell culture and/or in vivo studies. METHODS:We have analyzed currently available scientific literature to create a comprehensive review of the current state of the art in the field of HCV resistance to specific antiviral agents, in vitro and in vivo. RESULTS/CONCLUSION:Most specific HCV inhibitors described in the literature can select resistant viral variants in cell culture and in the clinic. Interplay of a mutant's fitness and its level of resistance will determine its clinical importance. Combinations of non-cross-resistant classes of drugs will be key to successful antiviral therapy. The number of drugs in a combination as well as the optimal duration of antiviral treatment, are important issues that need to be addressed in future studies.
journal_name
Expert Opin Investig Drugsjournal_title
Expert opinion on investigational drugsauthors
Koev G,Kati Wdoi
10.1517/13543784.17.3.303subject
Has Abstractpub_date
2008-03-01 00:00:00pages
303-19issue
3eissn
1354-3784issn
1744-7658journal_volume
17pub_type
杂志文章,评审abstract::The interaction between the urokinase receptor (uPAR) and its ligand urokinase (uPA) mediates phenomena such as tissue remodelling, chemotaxis, tumour invasion, dissemination, proliferation, and angiogenesis. The broad-spectrum of biological processes that the uPA/uPAR interaction plays a role in has led researchers t...
journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章
doi:10.1517/13543784.7.3.391
更新日期:1998-03-01 00:00:00
abstract:INTRODUCTION:Stroke is the second leading cause of death worldwide and the leading cause of adult neurological disability. Despite advances in stroke unit care, and increasing use of thrombolysis, there remains an urgent need for safe and effective treatments for acute ischaemic stroke. However, this is against a backd...
journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章,评审
doi:10.1517/13543784.2015.1020110
更新日期:2015-05-01 00:00:00
abstract::INH-A21 is an experimental human immune globulin for intravenous infusion (IGIV) derived from donors specifically selected for elevated levels of antibodies against the Staphylococcal fibrinogen-binding proteins, serine aspartate dipeptide repeat G and clumping factor A. Phase II results demonstrated that infusions of...
journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章
doi:10.1517/13543784.15.6.703
更新日期:2006-06-01 00:00:00
abstract::Clinical trials of several platelet glycoprotein (GP) IIb/IIIa receptor inhibitors have demonstrated an unequivocal benefit of this potent antithrombotic therapy in high-risk patients with acute coronary syndromes (ACS) as well as in those undergoing percutaneous coronary intervention. In all of these major trials, ho...
journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章,评审
doi:10.1517/13543784.12.9.1567
更新日期:2003-09-01 00:00:00
abstract::A major session at this annual gathering of the cancer researchers from around the globe dealt with the current state of immunotherapy for cancer. Immunotherapy is a form of cancer treatment that enhances its scientific promise and legitimacy with each passing year. As a result, this topic has become one of the most h...
journal_title:Expert opinion on investigational drugs
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abstract::Attempts to develop a vaccine against respiratory syncytial virus (RSV), the major cause of lower respiratory tract disease in infants and young children, have been unsuccessful. Passive immunisation with antibody to RSV has been found to be an effective alternative method for prophylaxis. The product currently in use...
journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章
doi:10.1517/13543784.7.8.1271
更新日期:1998-08-01 00:00:00
abstract:INTRODUCTION:Influenza viral ribonucleoprotein complexes (vRNPs) play a key role in viral transcription and replication; hence, the recent development of novel anti-influenza drugs targeting vRNPs has garnered widespread interest. AREAS COVERED:We discuss the function of the constituents of vRNPs and summarize those v...
journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章,评审
doi:10.1080/13543784.2019.1606210
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journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章,评审
doi:10.1517/13543784.9.9.2017
更新日期:2000-09-01 00:00:00
abstract::In the last decade, transdermal delivery of testosterone (T) has been shown to be a safe and effective means of treating male hypogonadism. Transdermal T patches can provide for physiologic androgen replacement in over 90% of men with hypogonadism. In addition, T patches have been shown to be equivalent to im. T ester...
journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章
doi:10.1517/13543784.7.12.1977
更新日期:1998-12-01 00:00:00
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journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章,评审
doi:10.1080/13543784.2018.1498081
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abstract:INTRODUCTION:The current standard treatment in persons with hemophilia (PWH) is prophylaxis, given intravenously twice or thrice weekly, which is associated with a non negligible burden on patients' quality of life. Therefore the main attempts aiming to improve the management of PWH are targeted towards the development...
journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章,评审
doi:10.1517/13543784.2013.798302
更新日期:2013-08-01 00:00:00
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journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章,评审
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更新日期:2000-05-01 00:00:00
abstract:INTRODUCTION:Asthma is a chronic inflammatory disease characterized by bronchial hyper-reactivity. Although many currently available treatment regimens are effective, poor symptom control and refractory severe disease still represent major unmet needs. In the last years, numerous molecular therapeutic targets that inte...
journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章,评审
doi:10.1080/13543784.2016.1212838
更新日期:2016-09-01 00:00:00
abstract::The role of nerve growth factor in stimulating cholinergic function, loss of which is a cardinal feature in Alzheimer's disease, has been documented for many years from preclinical animal model studies. This anabolic growth factor has been delivered into the forebrain of patients with mild Alzheimer's disease using tr...
journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章,评审
doi:10.1517/13543784.14.7.913
更新日期:2005-07-01 00:00:00
abstract::New bolus fibrinolytic agents derived from the recombinant human tissue plasminogen activator (t-PA) have emerged as a new means of dissolution of the occlusive thrombosis associated with acute myocardial infarction. Lanoteplase is a fibrinolytic drug derived from t-PA by deleting its fibronectin finger-like and epide...
journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章,评审
doi:10.1517/13543784.9.11.2689
更新日期:2000-11-01 00:00:00
abstract::Female hormonal contraceptive methods have undergone slow change over the past four decades. Due to social, political and legal reasons, as well as medical complications, several new methods have been removed from the contraceptive armamentarium almost as quickly as they have been added. With worldwide unintended preg...
journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章,评审
doi:10.1517/13543784.14.4.449
更新日期:2005-04-01 00:00:00
abstract:INTRODUCTION:Asthma is a common respiratory disease characterized by airway inflammation, bronchoconstriction and airway hyperresponsiveness and symptoms such as coughing, wheezing, shortness of breath and chest tightness. Allergic rhinitis is a common comorbidity in asthma and glucocorticoids are the key stone in the ...
journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章,评审
doi:10.1080/13543784.2016.1192124
更新日期:2016-08-01 00:00:00
abstract::Gaucher disease (GD) is an inborn error of glycosphingolipid metabolism, associated with multisystemic manifestations resulting from the lysosomal accumulation of an incompletely degraded material (glucosylceramide) within cells of monocyte/macrophage lineage. In the majority of GD patients with non-neurological invol...
journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章,评审
doi:10.1517/13543784.12.2.273
更新日期:2003-02-01 00:00:00
abstract::Preclinical studies suggest that the brain corticotropin-releasing factor (CRF) systems mediate anxiety-like behavioural and somatic responses through actions at the CRF1 receptor. CRF1 antagonists block the anxiogenic-like effects of CRF and stress in animal models. Cerebrospinal fluid levels of CRF are elevated in s...
journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章,评审
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更新日期:2004-07-01 00:00:00
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journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章,评审
doi:10.1517/13543784.13.6.643
更新日期:2004-06-01 00:00:00
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journal_title:Expert opinion on investigational drugs
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doi:10.1517/13543784.6.11.1659
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journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章
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abstract::The utility of transgenic animal bioreactors for the production of complex therapeutic proteins is based on lower production costs, higher production capacities and safer, pathogen free products. Until gene therapy becomes broadly efficacious, transgenic-derived therapeutics are the most attractive alternative for pro...
journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章
doi:10.1517/13543784.7.10.1683
更新日期:1998-10-01 00:00:00
abstract:BACKGROUND:Fenofibrate is the most widely used fibrate. Its efficacy and tolerability in the treatment of hypertriglyceridaemia and combined hyperlipidaemia have been demonstrated in several clinical trials. OBJECTIVE:To review the pharmacology, lipid-lowering and extra-lipid effects of fenofibrate and to preview ABT-...
journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章,评审
doi:10.1517/13543784.17.10.1599
更新日期:2008-10-01 00:00:00
abstract::This review focuses on the clinical development of the prototype broad spectrum inhibitor of cyclin-dependent kinases (CDKs), flavopiridol, now undergoing Phase II single-agent trials and Phase I combination trials (with paclitaxel and cisplatin). Preclinically, flavopiridol is a potent inhibitor of CDKs 1, 2 and 4 in...
journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章,评审
doi:10.1517/13543784.9.12.2903
更新日期:2000-12-01 00:00:00
abstract::Cyclooxygenase-2 (COX-2) is constitutively expressed in the central nervous system, and is thought to have an important functional role therein. COX-2 interacts with neurotransmitters such as acetylcholine, 5-hydroxytryptamine and glutamate but is also involved in the regulation of the central nervous system immune sy...
journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章,评审
doi:10.1517/13543784.13.8.1033
更新日期:2004-08-01 00:00:00
abstract::TNP-470, an analogue of fumagillin, has been shown to inhibit angiogenesis in vitro and in vivo. In 1992, TNP-470 entered clinical development for cancer as an anti-angiogenic agent. It is currently in Phase I/II trials in Kaposi's sarcoma, renal cell carcinoma, brain cancer, breast cancer, cervical cancer and prostat...
journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章,评审
doi:10.1517/13543784.9.6.1383
更新日期:2000-06-01 00:00:00
abstract::Marfan syndrome is the most common genetic disorder of the connective tissue with an estimated prevalence of 1:10,000. The disease is characterised by manifestations in the cardiovascular, skeletal and ocular systems. The most severe manifestations are those of the cardiovascular system: mitral valve prolapse and dila...
journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章
doi:10.1517/13543784.8.7.983
更新日期:1999-07-01 00:00:00
abstract:IMPORTANCE OF THE FIELD:Treatments of pulmonary arterial hypertension (PAH) that have so far proven efficacious are all based on the restoration of endothelium control of pulmonary vascular tone and structure, by administration of prostacyclins, endothelin receptor antagonists and phosphodiesterase-5 inhibitors. Howeve...
journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章,评审
doi:10.1517/13543781003727099
更新日期:2010-04-01 00:00:00
abstract:BACKGROUND:Polidocanol is a liquid surfactant having endothelial cell lytic properties. In the form of a controlled, dispensed microfoam it is administered endovenously as a sclerosing agent in the treatment of varicose veins. OBJECTIVE:This review summarizes efficacy of polidocanol endovenous microfoam sclerotherapy ...
journal_title:Expert opinion on investigational drugs
pub_type: 杂志文章,评审
doi:10.1517/13543780903376163
更新日期:2009-12-01 00:00:00