Drug Discovery for Psychiatric Disorders (Rsc Drug Disvocery) - Hardcover

 
9781849733656: Drug Discovery for Psychiatric Disorders (Rsc Drug Disvocery)

Inhaltsangabe

The discovery and development of effective medicines for the treatment of psychiatric disorders such as schizophrenia and depression has been heralded as one of the great medical achievements of the past century. Indeed, the profound impact of these medicines on our understanding of the pathophysiology underlying these diseases, the treatment of psychiatric patients and even our social perception of mental illnesses cannot be underestimated. However, there is still an urgent medical need for even more effective, safe and well-tolerated treatments. For example, currently available treatments for schizophrenia address mainly the positive symptoms and largely neglect the negative symptoms and cognitive disfunction which greatly impact overall morbidity. Similarly, whilst the current first line antidepressants show significantly improved side effect profiles compared to the first generation therapies, there still up to 40% of patients who are treatment resistant, and even in the patient population which responds well, the onset of action is slow at typically 2-3 weeks. The aim of this book is to provide the first point of call for those involved or just interested in this rapidly expanding and increasingly fragmented field of research and drug discovery. The editors will combine their wide ranging experience and extensive network of contacts with leading scientists and opinion leaders in this field to provide an authoritative reference text covering the evolution, major advances, challenges and future directions in drug discovery and medicinal chemistry for major psychiatric disorders.

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Über die Autorinnen und Autoren

Zoran Rankovic is a Senior Research Fellow and a Head of Medicinal Chemistry section at MSD, Merck Research Laboratories, U.K. 15 years experience in drug discovery with a track record of delivering compounds into the development for a number of therapeutic areas, including psychiatry. Over a decade of a direct involvement in shaping the early discovery portfolio for the neuroscience franchise. Zoran has a PhD in organic chemistry from the University of Leeds, UK. Richard Hargreaves is Vice President and Worldwide Head of Neuroscience Discovery Research at Merck - completed his doctorate through the Physiology Department at King's College London University UK. Joined Merck's Neuroscience Research Center in Harlow UK in 1988. Leader of the discovery biology teams that contributed to the development of MAXALT(R) (rizatriptan) for the treatment of migraine and EMEND(R) (aprepitant) and IVEMEND(R) (fosaprepitant), novel agents that advance the protective pharmacotherapy of acute and delayed chemotherapy-induced nausea and vomiting and post-operative nausea and vomiting. In 1999 he became Vice President Worldwide Head of Imaging with the assignment to establish and lead a worldwide imaging research strategy for Merck Research Laboratories. Matilda Bingham is currently Team Leader in the Medicinal Chemistry Department, MSD; 8 years research experience in neuroscience research in a pharmaceutical setting, participating and leading teams in the neuroscience area, specialising in the transporter and GPCR target classes.



Zoran Rankovic is a Senior Research Fellow and a Head of Medicinal Chemistry section at MSD, Merck Research Laboratories, U.K. 15 years experience in drug discovery with a track record of delivering compounds into the development for a number of therapeutic areas, including psychiatry. Over a decade of a direct involvement in shaping the early discovery portfolio for the neuroscience franchise. Zoran has a PhD in organic chemistry from the University of Leeds, UK. Richard Hargreaves is Vice President and Worldwide Head of Neuroscience Discovery Research at Merck - completed his doctorate through the Physiology Department at King's College London University UK. Joined Merck's Neuroscience Research Center in Harlow UK in 1988. Leader of the discovery biology teams that contributed to the development of MAXALT(R) (rizatriptan) for the treatment of migraine and EMEND(R) (aprepitant) and IVEMEND(R) (fosaprepitant), novel agents that advance the protective pharmacotherapy of acute and delayed chemotherapy-induced nausea and vomiting and post-operative nausea and vomiting. In 1999 he became Vice President Worldwide Head of Imaging with the assignment to establish and lead a worldwide imaging research strategy for Merck Research Laboratories. Matilda Bingham is currently Team Leader in the Medicinal Chemistry Department, MSD; 8 years research experience in neuroscience research in a pharmaceutical setting, participating and leading teams in the neuroscience area, specialising in the transporter and GPCR target classes.

Von der hinteren Coverseite

The discovery and development of effective medicines for the treatment of psychiatric disorders such as schizophrenia and depression has been heralded as one of the great medical achievements of the past century. Indeed, the profound impact of these medicines on our understanding of the pathophysiology underlying these diseases, the treatment of psychiatric patients and even our social perception of mental illnesses cannot be underestimated. However, there is still an urgent medical need for even more effective, safe and well-tolerated treatments. For example, currently available treatments for schizophrenia address mainly the positive symptoms and largely neglect the negative symptoms and cognitive disfunction which greatly impact overall morbidity. Similarly, whilst current first line antidepressants show significantly improved side effect profiles compared to the first generation therapies, there are still up to 40% of patients who are treatment resistant, and even in the patient population which responds well, the onset of action is slow at typically 2-3 weeks. The aim of this book is to provide the first point of call for those involved or just interested in this rapidly expanding and increasingly fragmented field of research in drug discovery. The editors have combined their wide ranging experience and extensive network of contacts with leading scientists and opinion leaders in this field to provide an authoritative reference text covering the evolution, major advances, challenges and future directions in drug discovery for major psychiatric disorders, such as schizophrenia, depression, anxiety, ADHD, bipolar disorder, addiction and autism. Written by leading experts from industry and academia the book will be essential reading for medicinal chemists, pharmacologists, and pharmaceutical scientists working in psychiatric diorders drug discovery and development.

Aus dem Klappentext

The discovery and development of effective medicines for the treatment of psychiatric disorders such as schizophrenia and depression has been heralded as one of the great medical achievements of the past century. Indeed, the profound impact of these medicines on our understanding of the pathophysiology underlying these diseases, the treatment of psychiatric patients and even our social perception of mental illnesses cannot be underestimated. However, there is still an urgent medical need for even more effective, safe and well-tolerated treatments. For example, currently available treatments for schizophrenia address mainly the positive symptoms and largely neglect the negative symptoms and cognitive disfunction which greatly impact overall morbidity. Similarly, whilst current first line antidepressants show significantly improved side effect profiles compared to the first generation therapies, there are still up to 40% of patients who are treatment resistant, and even in the patient population which responds well, the onset of action is slow at typically 2-3 weeks. The aim of this book is to provide the first point of call for those involved or just interested in this rapidly expanding and increasingly fragmented field of research in drug discovery. The editors have combined their wide ranging experience and extensive network of contacts with leading scientists and opinion leaders in this field to provide an authoritative reference text covering the evolution, major advances, challenges and future directions in drug discovery for major psychiatric disorders, such as schizophrenia, depression, anxiety, ADHD, bipolar disorder, addiction and autism. Written by leading experts from industry and academia the book will be essential reading for medicinal chemists, pharmacologists, and pharmaceutical scientists working in psychiatric diorders drug discovery and development.

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Drug Discovery for Psychiatric Disorders

By Zoran Rankovic, Matilda Bingham, Eric J. Nestler, Richard Hargreaves

The Royal Society of Chemistry

Copyright © 2012 The Royal Society of Chemistry
All rights reserved.
ISBN: 978-1-84973-365-6

Contents

Chapter 1 Psychiatric Disorders – an Overview Kathryn M. Connor and David Michelson, 1,
Section 1: Schizophrenia,
Chapter 2 The Pathophysiology of Schizophrenia Armin Szegedi and Michael Egan, 13,
Chapter 3 Monoaminergic Approaches for Treatment of Schizophrenia David P. Rotella, 35,
Chapter 4 Glutamatergic Approaches for the Treatment of Schizophrenia John A. Morrow, Robert Gilfillan and Stuart A. Neale, 56,
Chapter 5 Discovery and Clinical Data for a Novel AMPA Receptor Positive Modulator Simon E. Ward, 99,
Chapter 6 Treating the Cognitive Deficits of Schizophrenia Bruce N. Rogers and David L. Gray, 123,
Section 2: Depression and Anxiety,
Chapter 7 The Neurobiology of Depression and Anxiety: How Do We Change from Models of Drug Efficacy to Understanding Mood and Anxiety Disorders? Georgia E. Hodes and Scott J. Russo, 159,
Chapter 8 Beyond SSRIs: Second-generation Reuptake Inhibitors for the Treatment of Depression Peter T. Gallagher, 184,
Chapter 9 Neurocircuitry of Anxiety Disorders: Focus on Panic Disorder and Post-traumatic Stress Disorder James W. Murrough, Daniela Schiller and Dennis S. Charney, 226,
Chapter 10 Glutamate Approaches Towards the Treatment of Mood Disorders Carrie K. Jones, P. Jeffrey Conn and Craig W. Lindsley, 258,
Chapter 11 Modulation of HPA Axis Function for Treatment of Mood Disorders Shaun P. Brothers, Claes Wahlestedt and Charles B. Nemero, 276,
Chapter 12 Neuropeptide Receptors: Novel Therapeutic Targets for Depression and Anxiety Disorders Shigeyuki Chaki and Kosuke Kanuma, 300,
Section 3: Other Psychiatric Disorders,
Chapter 13 Therapeutic Approaches to Bipolar Disorder Moghis U. Ahmad, Shoukath M. Ali, Saifuddin Sheikh, Ateeq Ahmad and Imran Ahmad, 333,
Chapter 14 Pharmacotherapies for Drug Addiction C. D. Gipson and P. W. Kalivas, 357,
Chapter 15 Emerging Research towards the Understanding and Treatment of Autism Paul Wang, Rebecca Hammond, Friso Postma and Aileen Healy, 384,
Chapter 16 Recent Chronology of Orexin Pharmacology and Its Potential as a Treatment for Primary Insomnia Christopher J. Winrow, Anthony L. Gotter, Paul J. Coleman, Richard Hargreaves and John J. Renger, 416,
Section 4: Challenges and Future Directions in Drug Discovery for Psychiatric Disorders,
Chapter 17 Crossing the Blood-brain Barrier – Methods for Evaluating CNS Exposure James A. Baker and Iain J. Martin, 445,
Chapter 18 Medicinal Chemistry Challenges in CNS Drug Discovery Matilda Bingham and Zoran Rankovic, 465,
Chapter 19 Multi-target Drug Discovery for Psychiatric Disorders Zoran Rankovic and Richard Morphy, 510,
Chapter 20 The Possibilities and Limitations of Animal Models for Psychiatric Disorders Mark D. Tricklebank and Joseph P. Garner, 534,
Chapter 21 Translational PET Imaging Research in Psychiatry Richard J. Hargreaves and Eugenii A. Rabiner, 558,
Chapter 22 Future Drug Discovery for Psychiatric Disorders Darryle D. Schoepp and Richard J. Hargreaves, 574,
Subject Index, 579,


CHAPTER 1

Psychiatric Disorders – an Overview

KATHRYN M. CONNOR AND DAVID MICHELSON

Merck Research Laboratories, UG4C-018, Box 1000, North Wales, PA 19454, USA


1.1 Introduction

The psychiatric illnesses represent, collectively, a group of brain disorders characterized by behavioural and cognitive abnormalities and dysfunction. That psychiatric disorders exist and are abnormal states has been recognized throughout history, though, as with the history of illness generally, the meanings attributed to them have varied considerably across cultures and eras. Today psychiatric disorders are understood as behavioural and cognitive syndromes that reflect specific alterations or abnormalities in brain function, and comprise several distinct categories. Some of the more common psychiatric disorders include the psychotic illnesses, which are associated with gross disruptions of normal cognitive functioning such as hallucinations, thought disorders and delusions; affective disorders, which are characterized by marked extremes of mood states such as severe depressed mood or mania and/or disruptive oscillations between different mood states; anxiety disorders, characterized by hypervigilance, arousal or fear out of proportion to external stimuli, as well as disorders of impulse control such as ADHD, substance use disorders and eating disorders.

It is important to recognize that even within a given diagnostic category, psychiatric disorders generally are classified on the basis of observed signs and symptoms – these are syndromal diagnoses. The Diagnostic and Statistical Manual for Mental Disorders, 4th edition Text Revision (DSM-IV-TR) states:

[In DSM-IV] there is no assumption that all individuals having the same mental disorder are alike in all important ways. The clinician using DSM-IV should therefore consider that individuals sharing a diagnosis are likely to be heterogeneous ... (p. xxxi).


This heterogeneity means that two individuals with, for example, schizophrenia can present with quite different sets of signs and symptoms: one patient may experience paranoid delusions and auditory hallucinations, while another may present with disorganized thinking and loose associations. To complicate matters further, this heterogeneity is not confined to disease phenotype – it may also be that the pathogenesis and pathophysiology of a given psychiatric disorder vary among different individuals who share that diagnosis. From the perspective of drug discovery and drug development this is of particular importance, as it suggests that different patients with the same diagnosis may have quite different responses to a particular intervention.

Our current understanding of the etiology of most psychiatric disorders is imperfect. Characteristic alterations in certain laboratory or other biological measures have been shown is some disorders, but few psychiatric disorders have been associated with broadly reproducible pathophysiological findings that suggest a clear link to disease pathogenesis and etiology. With respect to the genetic bases of disease, many psychiatric disorders have been shown to have high heritability, and studies have suggested that some specific gene polymorphisms appear to be associated with increased risk for particular disorders. However, even for the genes with the strongest evidence of association to particular illnesses, the contribution to the overall observed phenotype attributable is likely to be small, suggesting that most psychiatric illness are the product of a complex interaction of genetic and environmental factors. Finally, most psychiatric disorders appear to have important developmental components in which experience and gene-environment interactions act together in disease pathogenesis.


1.2 Diagnostic Considerations

As noted above, and in contrast to other fields of medicine where diagnosis is based on pathophysiology or etiology, psychiatric diagnoses or diseases are predominantly syndromes. While the psychiatric research community continues to work toward defining specific mental illnesses based on pathophysiology and etiology, this goal has only been achieved for a limited number of disorders, such as many of the...

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