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Stacey L. Becker
Researcher at Pfizer
Publications - 21
Citations - 1525
Stacey L. Becker is an academic researcher from Pfizer. The author has contributed to research in topics: In vivo & Hippocampal formation. The author has an hindex of 14, co-authored 21 publications receiving 1374 citations.
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Journal ArticleDOI
The impact of p-glycoprotein on the disposition of drugs targeted for indications of the central nervous system: evaluation using the mdr1a/ 1b knockout mouse model
Angela C. Doran,R. Scott Obach,Bill J. Smith,Natilie Hosea,Stacey L. Becker,Ernesto Callegari,Cuiping Chen,Xi Chen,Edna F. Choo,Julie Cianfrogna,Loretta M. Cox,John P. Gibbs,Megan A. Gibbs,Heather L. Hatch,Cornelis E. C. A. Hop,Ilana N. Kasman,Jennifer L. LaPerle,JianHua Liu,Xingrong Liu,Michael J. Logman,Debra Maclin,Frank M. Nedza,Frederick R. Nelson,Emily R. Olson,Sandhya Rahematpura,David Raunig,Sabrinia Rogers,Kari Schmidt,Douglas K. Spracklin,Mark A. Szewc,Matthew D. Troutman,Elaine E. Tseng,Meihua Tu,Jeffrey Van Deusen,Karthik Venkatakrishnan,Gary Walens,Ellen Q. Wang,Diane Wong,Adam Yasgar,Chenghong Zhang +39 more
TL;DR: It appears that most CNS-active agents demonstrate at least some P-gp-mediated transport that can affect brain concentrations, and unbound plasma concentrations may need to be greater than values projected using receptor affinity data to achieve adequate receptor occupancy for effect.
Journal ArticleDOI
Application of the Bicyclo[1.1.1]pentane Motif as a Nonclassical Phenyl Ring Bioisostere in the Design of a Potent and Orally Active γ-Secretase Inhibitor
Antonia F. Stepan,Chakrapani Subramanyam,Ivan Viktorovich Efremov,Jason K. Dutra,Theresa J. O’Sullivan,Kenneth J. DiRico,W. Scott McDonald,Annie Won,Dorff Peter H,Charles E. Nolan,Stacey L. Becker,Leslie R. Pustilnik,David Riddell,Gregory W. Kauffman,Bethany L. Kormos,Liming Zhang,Yasong Lu,Steven Capetta,Michael Eric Green,Karki Kapil Kumar,Evelyn Sibley,Kevin Atchison,Andrew J. Hallgren,Christine E. Oborski,Ashley Robshaw,Blossom Sneed,Christopher J. O’Donnell +26 more
TL;DR: This work presents a compelling case for its broader application as a phenyl group replacement in scenarios where the aromatic ring count impacts physicochemical parameters and overall drug-likeness.
Journal ArticleDOI
Use of a Physiologically Based Pharmacokinetic Model to Study the Time to Reach Brain Equilibrium: An Experimental Analysis of the Role of Blood-Brain Barrier Permeability, Plasma Protein Binding, and Brain Tissue Binding
Xingrong Liu,Bill J. Smith,Cuiping Chen,Ernesto Callegari,Stacey L. Becker,Xi Chen,Julie Cianfrogna,Angela C. Doran,Shawn D. Doran,John P. Gibbs,Natilie Hosea,JianHua Liu,Frederick R. Nelson,Mark A. Szewc,Jeffery Van Deusen +14 more
TL;DR: The present study demonstrates that rapid brain equilibration requires a combination of high BBB permeability and low brain tissue binding, and the strategy to select compounds with rapid brain Equilibration in drug discovery should identify compounds with highBBB permeable and low nonspecific binding in brain tissue.
Journal ArticleDOI
Evaluation of cerebrospinal fluid concentration and plasma free concentration as a surrogate measurement for brain free concentration.
Xingrong Liu,Bill J. Smith,Cuiping Chen,Ernesto Callegari,Stacey L. Becker,Xi Chen,Julie Cianfrogna,Angela C. Doran,Shawn D. Doran,John P. Gibbs,Natilie Hosea,JianHua Liu,Frederick R. Nelson,Mark A. Szewc,Jeffrey Van Deusen +14 more
TL;DR: For quick brain penetration with simple diffusion mechanism compounds, CCSF and Cu,plasma represent Cu,brain equally well; for efflux substrates or slow brain penetration compounds,CCSF appears to be equivalent to or more accurate than Cu, Plasma to representCu,brain.
Journal ArticleDOI
Discovery, SAR, and pharmacokinetics of a novel 3-hydroxyquinolin-2(1H)-one series of potent D-amino acid oxidase (DAAO) inhibitors.
Allen J. Duplantier,Stacey L. Becker,Michael John Bohanon,Kris A. Borzilleri,Boris A. Chrunyk,James T. Downs,Lain-Yen Hu,Ayman El-Kattan,Larry C. James,Shenping Liu,Jiemin Lu,Noha Maklad,Mahmoud N. Mansour,Scot Richard Mente,Mary Piotrowski,Subas M. Sakya,Sheehan Susan M,Stefanus J. Steyn,Christine A. Strick,Victoria A. Williams,Lei Zhang +20 more
TL;DR: Subsequent evaluation against the rat DAAO enzyme revealed a divergent SAR versus the human enzyme and may explain the high exposures of drug necessary to achieve significant changes in rat or mouse cerebellum D-serine.