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Personalized medicine comes into its own
Last November I hosted a webinar on the personalized medicine trend. It drove home one more time how an explosion of new genetics research is highlighting the mechanisms that dictate an individual's response to a therapy.
New FDA recommendations suggesting testing to guide physicians on the use of warfarin have helped highlight what will be a growing issue for developers of every size. As our understanding of genetics grows, we will increasingly be able to pinpoint subpopulations that will either be more likely to benefit more from a therapy or suffer severe side effects. This knowledge will make it possible to mount smaller trials able to produce better data on biotech drugs. And it will make it far easier to persuade payers of their potential value.
This years we'll see new technology make it much less expensive to do genomic sequencing, opening up a whole new playbook on development. As I've already noted, the FDA has made it clear that they want this data gathered during clinical trials. And new studies will have to take that into account long before recruitment begins.
Physicians have always used a hit or miss approach to medicine. And that will not end. But increasingly doctors will be able to play much better odds when they address a problem. We won't see the completion of this revolution in 2009--far from it--but we are likely to take several long strides in the right direction. And everyone in the industry needs to understand the consequences.
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Comments
There are some things that an individual's genotype will clearly be good for--predictive molecular diagnostics for cancer risk, say, or CYP450 polymorphisms for life-threatening idiosyncracies in drug metabolism, e.g. warfarin dosing, or adriamycin cardiotoxicity. But I don't think genotypes will carve up therapeutics. Even patients without the appropriate genomic polymorphism respond to an inhibitor of an early step in a disease pathway, suggesting that disease pathways common to entire species still exist. A clinical diagnosis, not a genomic one, may still be perfectly adequate. And blockbuster drugs are still possible. This is hardly personalized medicine, which suggests that, in the extreme, each individual will require his/her own unique drug. Anyone wanting to discuss this in person is invited to attend a conference next week in Philadelphia (see www.exlpharma.com/eventAgenda.php?id=148).
Dave Moskowitz MD
CEO, GenoMed (www.genomed.com)
Dave,
I think the theory of common pathway is interesting. However, the key here is not just genetic predisposition it is modification of gene expressions or suppression. Send me an email, I would love to chat.
-Steve
www.thegenesherpa.blogspot.com






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