Early Stage Drug Safety Strategies and Risk Management: Maximizing Opportunities towards Achieving Clinical Success

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Wed May 27, 2009 10:36am EDT

NEW YORK--(Business Wire)--
Reportlinker.com announces that a new market research report is available in its
catalogue. 

Early Stage Drug Safety Strategies and Risk Management: Maximizing opportunities
towards achieving clinical success

http://www.reportlinker.com/p0119736/Early-Stage-Drug-Safety-Strategies-and-Risk-Management-Maximizing-opportunities-towards-achieving-clinical-success.html

Declining industrial productivity has forced companies to urgently address the
areas of drug development that are most likely to lead to the failure of a new
compound. Innovations are required that can support the earlier termination of
drugs which will be toxic in humans and cause rare events that are unlikely to
be identified in clinical trials. Major pharma companies have subsequently begun
to implement an array of new technologies for drug safety prediction into the
discovery phases of research. 

`Early Stage Drug Safety Strategies and Risk Management` is a report published
by Business Insights that identifies the new predictive technologies which can
facilitate the earlier termination of potentially unsuccessful compounds.
Emerging approaches in key areas such as hepatotoxicity, nephrotoxicity and
cardiotoxicity are examined, and the collaborative efforts of academia and
technology developers in driving the discovery of safety predictive methods and
biomarkers are reviewed. This report evaluates the latest innovative predictive
technologies being introduced into pre-clinical and early clinical development
phases and also explores the potential cost savings and challenges associated
with their implementation. 

Key Findings 

Future improvements in drug discovery will include the modeling of a wider range
of toxicities, such as hepatotoxicity, and formations of reactive metabolites
that might lead to idiosyncratic toxicity. Developments in high-throughput
technologies, systems biology and bioinformatics have also enabled virtual
modeling for whole organs. 

High-content screening is increasingly important for identifying toxicity
endpoints in a drug discovery setting. The methods use automated microscopy with
image analysis to measure the effects of compounds on cell health. Improvements
are required in the cell types used and the number of toxicity endpoints that
can be studied reliably. 

Novel in vivo models are now available including zebrafish screens, which are
suited for use at the lead optimization stage or earlier. Humanized rodent
models, in which key enzymes responsible for metabolism have been replaced by
their human counterparts, may also be suitable for use in candidate selection. 

Pharmacometric modeling and simulation and novel study methods such as adaptive
designs are increasingly being applied in drug development to make the most of
the data collected and to guide the choice of dose for clinical application. 

Use this report to 

• Assess key technologies for predicting drug safety in the earliest stages of
discovery and clinical development with this report`s comprehensive analysis of
emerging approaches across in silico, in vitro and in vivo preclinical
technologies. 

• Identify which companies are leading the field in safety prediction for new
drugs, understand the strategic implementations for large pharma companies and
examine the role of public-private consortia in solving key issues within this
field of predictive safety. 

• Discover the extent to which predictive safety technologies can provide
potential cost savings and improvements in attrition rates and assess the
challenges and risks associated with the implementation. 

• Understand the latest strategies to improve safety evaluation in early
clinical development with this report`s analysis of the latest approaches in
exploratory and Phase I clinical trials. 

Explore issues including 

The impact of failure; Declining productivity in the pharma industry has
intensified the need to create innovative solutions to reduce new compound
failures. The current likelihood of a project progressing from Phase 1 to
approval is roughly 20%, although in some therapeutic areas this may be as low
as 8%. 

The importance of collaboration; Sharing information and expertise across
companies can drive the field forward in a way that is impossible for these
organizations individually. Biomarker data from some of the major consortia has
been submitted to regulators, and this represents significant progress, most
notably within the field of renal toxicity. 

Better predictive animal models; Rodent and non-rodent models used in drug
development are expensive and the results do not always translate well to the
human situations. A survey carried out in 1999 reported a true positive
concordance rate between animal and human data of 71% for rodent and non-rodent
species (63% for non-rodents and 43% for rodents alone). 

The need for early assessment of key clinical attributes; Exploratory trials are
particularly useful for gaining early insight into human ADME characteristics
including mass balance, metabolite and absolute bioavailability parameters that
would not traditionally be collected until Phase 2 or later. These studies use
microdoses and can explore more candidates at a lower cost than a traditional
`First in Man` study. 

Discover 

• Which technologies are leading the way in predicting potential safety problems
in the earliest stages of drug discovery and development as possible? 

• What are the contributions of in silico, in vitro, and in vivo methods in the
non-clinical stages of drug development? 

• What are the goals of public-private consortia in driving the discovery of
methods and biomarkers and how much have they achieved to date? 

• How can the data collected in early human clinical trials be improved to
better inform decision-making about potentially safe candidates? 

Table of Contents

Early Stage Drug Safety Strategies and Risk 

Management: Maximizing opportunities towards achieving clinical success.
Executive Summary 10 

Introduction 10 

Modeling and simulation in drug discovery 11 

Novel in vitro technologies for predictive safety testing 12 

Novel in vivo methods in for non-clinical safety assessment 12 

Current initiatives in preclinical drug safety 13 

Strategies to improve safety evaluation in early clinical development 14 

Challenges and cost saving opportunities 16 

Chapter 1 Introduction 18 

Summary 18 

State of the industry 19 

Drug attrition 20 

Innovation in drug safety 21 

Report outline 28 

Chapter 2 Modeling and simulation in drug discovery 32 

Summary 32 

Introduction 33 

Molecular modeling 34 

Structure-toxicity relationships 35 

Epix Pharmaceuticals` in silico discovery platform 37 

Chemoinformatic methods 38 

Collaborative projects 41 

Biosimulation 42 

Virtual models of whole organs 43 

Conclusions 45 

Chapter 3 Novel in vitro technologies for predictive safety testing 48 

Summary 48 

Introduction 49 

Toxicogenomics and systems biology 50 

Commercial platforms 53 

Cell-based assays 56 

Stem cells 61 

Conclusions 65 

Chapter 4 Novel in vivo methods in for nonclinical safety assessment 68 

Summary 68 

Introduction 69 

Zebrafish 70 

Whole animal imaging and microscopy 73 

Humanized rodent models 79 

Conclusions 80 

Chapter 5 Current initiatives in preclinical drug safety 84 

Summary 84 

Introduction 85 

The Predictive Safety Testing Consortium 86 

The International Life Sciences - Health and Environmental Sciences 

Institute 88 

The InnoMed PredTox project 89 

The Innovative Medicines Initiative 92 

Additional consortia 93 

The Chemical Effects in Biological Systems Database 93 

The Japanese Toxicogenomics Project 93 

Liver Toxicity Biomarker Study 94 

Consortium for Metabonomic Toxicology 94 

Other European funded initiatives 95 

ACuteTox 95 

Reprotec 96 

Predictomics 96 

CarcinoGenomics 97 

Conclusions 97 

Chapter 6 Strategies to improve safety evaluation in early clinical development
100 

Summary 100 

Introduction 101 

Exploratory clinical trials 102 

Other applications of AMS 106 

Industry uptake 108 

Regulatory status 108 

The future for AMS-based studies 109 

Technologies 109 

Linking pharmacology data to microdose studies 109 

Improving safety evaluation in Phase 1 110 

Biomarkers in Phase 1 clinical trials 110 

Pharmacogenomics and rare, idiosyncratic adverse events 115 

Pharmacometrics - modeling and simulation to improve Phase 1 safety 116 

Optimizing early clinical trial design 119 

QT in Phase 1 121 

The Thorough QT Study 121 

Timing of the TQT study 124 

Intensive QT studies in early Phase 1 124 

Costs and decision making 125 

Conclusions 125 

Chapter 7 Challenges and cost saving opportunities 128 

Summary 128 

Introduction 129 

Implementation of new technologies 129 

New technologies, new risks 132 

Qualifying biomarkers 133 

Translational medicine 135 

`Fail early, fail often` 136 

Conclusions 141 

Chapter 8 Appendix 142 

Primary research methodology 142 

Acknowledgments 143 

Index 144 

Glossary 145 

Glossary 145 

Bibliography 148 

Endnotes 153 

List of Figures 

Figure 1.1: Pharma industry productivity decline (1995-2007) 19 

Figure 1.2: Reasons for drug attrition 24 

Figure 1.3: The place of innovative safety evaluation strategies in drug
discovery and development 25 

Figure 1.4: Serious adverse events: research priorities 26 

Figure 2.5: In silico methods contribute to the earliest stages of drug
discovery 33 

Figure 2.6: The Safety Intelligence Program from BioWisdom 39 

Figure 2.7: Examples of assertions in the Safety Intelligence Program from
BioWisdom 40 

Figure 3.8: Novel in vitro methods and their use in drug discovery and
development 50 

Figure 3.9: A typical toxicogenomics workflow in the pharma industry 52 

Figure 4.10: Novel in vivo methods and their use in drug discovery and
development 70 

Figure 4.11: Whole body microPET images through a rat showing 18F-FDG
distribution 75 

Figure 5.12: Study design and investigations used in the InnoMed PredTox project
90 

Figure 6.13: The `learn and confirm` model of drug development 101 

Figure 6.14: The place of innovative technologies in early clinical safety
assessment 102 

Figure 6.15: Comparison of midazolam pharmacokinetics at microdose and
therapeutic dose levels in the CREAM study 105 

Figure 6.16: Proposed decision tree for integration of pharmacogenetic studies
in early drug development 115 

Figure 6.17: Information utilized in model-based drug development 118 

Figure 6.18: Key attributes of a thorough QT study 123 

Figure 7.19: Success rate improvements from increasing investment in
technologies for early safety prediction 139 

List of Tables 

Table 1.1: Failure rates at each stage of clinical drug development 20 

Table 1.2: Drugs withdrawn from the market in the US between 1998 and April 2008
21 

Table 3.3: Examples of companies providing platforms for toxicogenomics 53 

Table 3.4: Examples of companies offering integrated software suites for the
analysis of toxicogenomic data 55 

Table 3.5: Examples of contract laboratories offering HCA cytotoxicity screening
59 

Table 3.6: Examples of companies offering stem cells for toxicity testing 63 

Table 4.7: Advantages and disadvantages of zebrafish for toxicity screening 71 

Table 4.8: Companies offering zebrafish toxicity screening products and services
72 

Table 4.9: Advantages of molecular imaging of whole animals for preclinical
studies 76 

Table 4.10: Manufacturers of molecular imaging equipment and probes 77 

Table 4.11: Companies developing transgenic models for ADMET testing 79 

Table 5.12: Biomarker candidates identified by the InnoMed PredTox project 91 

Table 6.13: Companies offering AMS services 103 

Table 6.14: Advantages and disadvantages of AMS-based microdosing studies 104 

Table 6.15: Advantages and disadvantages of using AMS for mass balance and
absolute bioavailability studies 107 

Table 6.16: Core list of validated genomic biomarkers involved in ADME 112 

Table 6.17: Examples of valid genomic biomarkers in drug labels 113 

Table 6.18: Pharmacometric consultancies 119 

Table 7.19: Definitions and examples of safety biomarkers with different levels
of qualification134 

Table 7.20: Success rate improvements from increasing investment in technologies
for early safety prediction 137 

Table 7.21: Success rate improvements from increasing investment in technologies
for early safety prediction 140 

To order this report:

Early Stage Drug Safety Strategies and Risk Management: Maximizing opportunities
towards achieving clinical success

http://www.reportlinker.com/p0119736/Early-Stage-Drug-Safety-Strategies-and-Risk-Management-Maximizing-opportunities-towards-achieving-clinical-success.html

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