New Drug Development For Known And Emerging Viruses

Discusses how to fight Ebola, SARS Corona, and other known or emerging human viruses by building on the successes in antiviral therapy of the past decades Written by leading medicinal chemists from academia and industry, this book discusses the entire field of antiviral drug discovery and development from a medicinal chemistry perspective, focusing on antiviral drugs, targets, and viral disease mechanisms. It provides an outlook on emerging pathogens such as Ebola, Zika, West Nile, Lassa, and includes a chapter on SARS Coronoavirus-2 causing the present pandemic. New Drug Development for Known and Emerging Viruses describes the discovery and development process for antiviral agents for different classes of viruses and targets based on the experiences from the nine human viruses for which approved drugs are on the market (HIV, HCV, Influenza, RSV, HBV, HPV, HCMV, HSV, and VZV). It covers the properties and potential of 20 classes of currently approved antivirals, including combination drugs, and looks at novel antiviral strategies against emerging viruses. Covers the entire field of antiviral drug discovery and development Addresses the need for antiviral drugs to combat major health threats such as Ebola, Zika, West Nile, and SARS Coronavirus-2 Summarizes the successes of the past 15 years in developing ground-breaking medicines against 9 major human viruses, both from the medicinal chemistry and the pharmacological angle Discusses practical and strategic challenges in the drug discovery and development process, including screening technologies, latency, and toxicity issues New Developments in Antiviral Drugs is an important book for medicinal chemists, pharmaceutical chemists, virologists, and epidemiologists, and will be of great interest to those in the pharmaceutical industry and public health agencies.

This book summarizes state-of-the-art antiviral drug design and discovery approaches starting from natural products to de novo design, and provides a timely update on recently approved antiviral drugs and compounds in advanced clinical development. Special attention is paid to viral infections with a high impact on the world population or highly relevant from the public health perspective (HIV, hepatitis C, influenza virus, etc.). In these chapters, limitations associated with adverse effects and emergence of drug resistance are discussed in detail. In addition to classical antiviral strategies, chapters will be dedicated to discuss the non-classical drug development strategies to block viral infection, for instance, allosteric inhibitors, covalent antiviral agents, or antiviral compounds targeting protein–protein interactions. Finally, current prospects for producing broad-spectrum antiviral inhibitors will be also addressed. The book is distinctive in providing the most recent update in the rapidly evolving field of antiviral therapeutics. Authoritative reviews are written by international scientists well known for their contributions in their topics of research, which makes this book suitable for researchers not only within the antiviral research community but also attractive to a broad audience in the drug discovery field. This book covers molecular structures and biochemical mechanisms mediating the antiviral effects, while discussing various ligand design strategies, which include traditional medicinal chemistry, computational chemistry, and chemical biology approaches. The book provides a comprehensive review of antiviral drug discovery and development approaches, particularly focusing on current innovations and future trends.

New antiviral drugs are urgently needed. Recent outbreaks caused by viruses with great epidemiological impact such as Zika, or extraordinary virulence such as Ebola, Nipah, Lassa, Crimean-Congo haemorrhagic fever highlight the current lack of clinically proven vaccines and treatments for these potentially catastrophic agents. Antiviral Discovery for Highly Pathogenic Emerging Viruses comprehensively outlines the state of the art in antiviral drug discovery including identification of targets, screening strategies and the current pipeline of antiviral candidates including regulatory issues. The book also addresses the challenges faced in proceeding from pre-clinical studies to animal models and clinical trials with these highly pathogenic agents. Ideal for drug discovery scientists and medicinal chemists with an interest in antiviral drug discovery and development, this book provides a complete overview of the latest progress in the field, recent advances and the challenges that remain in developing these highly pathogenic agents. Illustrated throughout with case studies this book is a valuable resource in this complex and multidisciplinary field.

By focusing on general molecular mechanisms of antiviral drugs rather than therapies for individual viruses, this ready reference provides the critical knowledge needed to develop entirely novel therapeutics and to target new viruses. It begins with a general discussion of antiviral strategies, followed by a broad survey of known viral targets, such as reverse transcriptases, proteases, neuraminidases, RNA polymerases, helicases and primases, as well as their known inhibitors. The final section contains several cases studies of recent successful antiviral drug development. Edited by Erik de Clercq, the world authority on small molecule antiviral drugs, who has developed more new antivirals than anyone else.

The disability-adjusted life year (DALY) is a generic measure of health effect that can be used in cost-effectiveness analysis as an alternative to the quality-adjusted life year (QALY). Infectious diseases are one of the major to cause significant losses of DALY and QALY. Human infectious diseases are disorders that are triggered by the micro-organisms such as bacteria, fungi, viruses, or parasites. The majority of such diseases are contagious and create a public health menace. There are several reasons why infectious diseases are deadly diseases, and one of the primary reasons is the drug resistance developed over time. Drug resistance-associated mutations are linked to increasing drug efflux, modifications of the drugs, or their targets. Every year, new drugs are being approved by FDA to treat infectious diseases. Nonetheless, the infectious diseases will undoubtedly persist as permanent and main threats to humanity for now and in the future, primarily due to increased longevity that almost always comes at a cost of impaired immunity. A total of four books are covered under the series of Infectious drug diseases. - Malarial drug delivery systems - Tubercular drug delivery systems - Viral drug delivery systems - Infectious disease drug delivery systems The third volume of series is focused on viral drug delivery systems. Typically, virus attaches to the cells (referred as host cell) and releases its DNA or RNA inside the cell. In second stage, virus’s genetic material takes control of the cell and forces it to replicate the virus leading to onset of disease symptoms. DNA class of viruses include Herpes, Papilloma and Adeno viruses. RNA class of viruses include retroviruses, such as HIV immunodeficiency virus and SARS COV – 2 / Corona virus. This book addresses recent developments in viral drug delivery systems. It covers many different aspects of viral infections, ways to treat them using modern drug delivery systems like nano particulate carriers. The choice of viral delivery systems mainly depends upon the type of virus, duration of life cycle, presence of drug resistance, cellular and mucosal interaction of virus, accordingly gene or non-gene drug delivery systems are selected. Besides that, this book also reports global dynamics of viral diseases, future predictions of infection rate, current treatment options, details of drug carriers like nanoemulsions, polymeric nanoparticles, role of biofunctionalization, and phyto-molecules in treatment of viral infections particularly herpes, Covid-19, Ebola, HIV/AIDS, influenza and viral hepatitis. Audiences from a broad range of groups, from researchers, academicians, and public health bodies to regulatory experts, can benefit from the compiled information to learn more about patient needs and current research advances in the field of viral drug delivery research.

The antiviral therapeutic area continues to rapidly generate meaningful new chemical entities; for example, for HIV alone more than 25 drugs have been approved, and in the next few years many individual drugs and single tablet regimens will be approved for the treatment of hepatitis C virus infection. The increasing success in the antiviral area could be due to targeting drugs at "non-self" genomes and to the patient population that is tolerant of manageable side effects and adaptable to inconvenient dosing. Aimed at medicinal chemists and emerging drug discovery scientists, the book is organized according to the various strategies deployed for the discovery and optimization of initial lead compounds. This book focuses on capturing tactical aspects of problem solving in antiviral drug design, an approach that holds special appeal for those engaged in antiviral drug development, but also appeals to the broader medicinal chemistry community based on its focus on tactical aspects of drug design.

The past decade has seen mounting global concern regarding viral outbreaks such as SARS, avian influenza and West Nile virus. In 2004 and 2005, reports of bird-to-human, and possible human-to-human, transmissions of the H5N1 influenza viruses raised fears that these viruses could cause a pandemic on the scale of the Spanish flu pandemic of 1918. Previous to this, a novel coronavirus had been identified as the aetiological agent of the severe acute respiratory syndrome (SARS), a new respiratory viral disease that emerged at the end of 2002 and caused profound disturbances in over 30 countries worldwide in 2003. It is not known whether the SARS coronavirus will re-emerge, especially since its origins and potential reservoir(s) are unresolved. However, these outbreaks have shown that these viruses can emerge in any part of the world at any time. This book critically evaluates the latest scientific evidence on novel or re-emerging viral diseases and brings together contributions from world experts on this topic, explaining best practice in their area, and discussing lessons learned and how best to collaborate to prevent and control future outbreaks. Topics covered include: the latest advances in virology, particularly in the area of epidemiology diagnostics animal models for viral infection antiviral and vaccine development Novel and Re-emerging Respiratory Viral Diseases offers a comprehensive and interdisciplinary account of all aspects of the topic, from basic molecular biology to public health issues, and is therefore essential reading for virologists, infectious disease specialists, public health managers, researchers and epidemiologists, as well as those working in vaccine development, pharmaceutical medicine and drug discovery

The preliminary objective of the work carried out in this book revolved around and took inspiration from modern drug discovery procedures. It describes the processes typically followed during 'early' drug discovery stages, including in vitro antiviral activity and preliminary cellular toxicity testing. This book presents for the first time, novel potential antiviral compounds as well as existing off-licence therapeutics capable of treating the deadly henipavirus infections. It also describes a prospective antiviral target that may permit the discovery of antiviral drugs that could significantly contribute to the management of many lethal zoonotic pathogens.