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New MOA Challenges<br />

68<br />

An increased understanding of <strong>the</strong> neurobiology of pain has not yet<br />

translated into breakthroughs in pain <strong>the</strong>rapies. Why?<br />

• Development Risk<br />

– Animal models are not disease models, but are useful for<br />

PK/PD.<br />

– Correlations from animals to clinic only exist for precedented<br />

targets.<br />

– Biggest clinical risk is in exposure, limited by safety/tolerability.<br />

– Access to correct compartment (CNS) is next most important<br />

consideration.<br />

NeuroDiscovery/NeuroSolutions <strong>presentation</strong>s, Arrowhead Pain Conference 2008; Stephenson, D.T.<br />

and Arneric, S.P. The Journal of Pain, Vol 9, No 7, 2008: p 567-579<br />

© Defined Health, 2009<br />

Pain Insight Briefing

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