Alzheimer's disease drug development and the problem of the blood-brain barrier
Abstract Alzheimer's disease (AD) drug development is limited by the presence of the blood-brain barrier (BBB). More than 98% of all small-molecule drugs, and ∼100% of all large-molecule drugs, do not cross the BBB. Although the vast majority of AD drug candidates do not cross the BBB, the pres...
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description | Abstract Alzheimer's disease (AD) drug development is limited by the presence of the blood-brain barrier (BBB). More than 98% of all small-molecule drugs, and ∼100% of all large-molecule drugs, do not cross the BBB. Although the vast majority of AD drug candidates do not cross the BBB, the present-day AD drug-development effort is characterized by an imbalance wherein >99% of the drug-development effort is devoted to central nervous system (CNS) drug discovery, and |
doi_str_mv | 10.1016/j.jalz.2009.06.003 |
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More than 98% of all small-molecule drugs, and ∼100% of all large-molecule drugs, do not cross the BBB. Although the vast majority of AD drug candidates do not cross the BBB, the present-day AD drug-development effort is characterized by an imbalance wherein >99% of the drug-development effort is devoted to central nervous system (CNS) drug discovery, and <1% of drug development is devoted to CNS drug delivery. Future AD drug development needs a concerted effort to incorporate BBB sciences early in the CNS drug discovery process. 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More than 98% of all small-molecule drugs, and ∼100% of all large-molecule drugs, do not cross the BBB. Although the vast majority of AD drug candidates do not cross the BBB, the present-day AD drug-development effort is characterized by an imbalance wherein >99% of the drug-development effort is devoted to central nervous system (CNS) drug discovery, and <1% of drug development is devoted to CNS drug delivery. Future AD drug development needs a concerted effort to incorporate BBB sciences early in the CNS drug discovery process. This goal can be achieved by a reallocation of resources, and an expansion of research efforts in the pure science of BBB biology and the applied science of brain drug-targeting technology.</description><subject>Alzheimer Disease - drug therapy</subject><subject>Alzheimer Disease - metabolism</subject><subject>Biopharmaceuticals</subject><subject>Blood-brain barrier</subject><subject>Blood-Brain Barrier - drug effects</subject><subject>Blood-Brain Barrier - physiology</subject><subject>Brain drug targeting</subject><subject>Central Nervous System Agents - pharmacokinetics</subject><subject>Drug Delivery Systems - methods</subject><subject>Drug Design</subject><subject>Endogenous transporters</subject><subject>Humans</subject><subject>Neurology</subject><issn>1552-5260</issn><issn>1552-5279</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkk1v1DAQhi0Eoh_wBzig3DgljJ3EcSRUaVUBpVqpB-DCxXLsSdfBiVf27lbbX49DqvJxQBz8Pe87o8dDyCsKBQXK3w7FoNx9wQDaAngBUD4hp7SuWV6zpn36uOdwQs5iHAAqELR-Tk5o29S0ZeyU3Kzc_QbtiOFNzIyNqCJmJuxvM4MHdH474rTL1GSy3QazbfCdwzHz_c9j57w3eReUnbJOhWAxvCDPeuUivnxYz8nXD--_XF7l65uPny5X61zzkpW5QqSMazAlh4aBNrrjrWhUp5kQvBKMNaLty7IuGwqVxrqpDApNe1QdF7oqz8nF4rvddyManaoMysltsKMKR-mVlX--THYjb_1Bsqbmgs0GbDHQwccYsH_UUpAzXjnIGa-c8UrgMuFNote_Z_0leeCZAlZLwJ11ePwPS7laf7u-TtN8B3xJ8m7xwMTvkJjKqC1OGo0NqHfSePvvGi_-kmtnJ6uV-45HjIPfhyn9jKQyMgny89wkc4-k9CwNWv4AUqa1vQ</recordid><startdate>200909</startdate><enddate>200909</enddate><creator>Pardridge, William M</creator><general>Elsevier Inc</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>5PM</scope></search><sort><creationdate>200909</creationdate><title>Alzheimer's disease drug development and the problem of the blood-brain barrier</title><author>Pardridge, William M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c6323-aee126c0d360720cdcb6987abc28864822789f33537104ce574de8c1feab68c43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Alzheimer Disease - drug therapy</topic><topic>Alzheimer Disease - metabolism</topic><topic>Biopharmaceuticals</topic><topic>Blood-brain barrier</topic><topic>Blood-Brain Barrier - drug effects</topic><topic>Blood-Brain Barrier - physiology</topic><topic>Brain drug targeting</topic><topic>Central Nervous System Agents - pharmacokinetics</topic><topic>Drug Delivery Systems - methods</topic><topic>Drug Design</topic><topic>Endogenous transporters</topic><topic>Humans</topic><topic>Neurology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pardridge, William M</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Alzheimer's & dementia</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Pardridge, William M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Alzheimer's disease drug development and the problem of the blood-brain barrier</atitle><jtitle>Alzheimer's & dementia</jtitle><addtitle>Alzheimers Dement</addtitle><date>2009-09</date><risdate>2009</risdate><volume>5</volume><issue>5</issue><spage>427</spage><epage>432</epage><pages>427-432</pages><issn>1552-5260</issn><eissn>1552-5279</eissn><abstract>Abstract Alzheimer's disease (AD) drug development is limited by the presence of the blood-brain barrier (BBB). 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source | Wiley Online Library - AutoHoldings Journals; MEDLINE |
subjects | Alzheimer Disease - drug therapy Alzheimer Disease - metabolism Biopharmaceuticals Blood-brain barrier Blood-Brain Barrier - drug effects Blood-Brain Barrier - physiology Brain drug targeting Central Nervous System Agents - pharmacokinetics Drug Delivery Systems - methods Drug Design Endogenous transporters Humans Neurology |
title | Alzheimer's disease drug development and the problem of the blood-brain barrier |
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