K
Karen Atkinson
Researcher at Pfizer
Publications - 28
Citations - 883
Karen Atkinson is an academic researcher from Pfizer. The author has contributed to research in topics: Glucokinase & In vivo. The author has an hindex of 16, co-authored 28 publications receiving 736 citations.
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Journal ArticleDOI
Discovery of (S)-6-(3-cyclopentyl-2-(4-(trifluoromethyl)-1H-imidazol-1-yl)propanamido)nicotinic acid as a hepatoselective glucokinase activator clinical candidate for treating type 2 diabetes mellitus.
Jeffrey A. Pfefferkorn,Angel Guzman-Perez,John Litchfield,Robert J. Aiello,Judith L. Treadway,John C. Pettersen,Martha L. Minich,Kevin J. Filipski,Christopher S. Jones,Meihua Tu,Gary Erik Aspnes,Hud Lawrence Risley,Jianwei Bian,Benjamin D. Stevens,Patricia Bourassa,Theresa D’Aquila,Levenia Baker,Nicole Barucci,Alan Robertson,Francis Bourbonais,David R. Derksen,Margit MacDougall,Over Cabrera,Jing Chen,Amanda L. Lapworth,James A. Landro,William J. Zavadoski,Karen Atkinson,Nahor Haddish-Berhane,Beijing Tan,Lili Yao,Rachel E. Kosa,Manthena V.S. Varma,Bo Feng,David B. Duignan,Ayman El-Kattan,Sharad B. Murdande,Shenping Liu,Mark Ammirati,John D. Knafels,Paul DaSilva-Jardine,Laurel Sweet,Spiros Liras,Timothy P. Rolph +43 more
TL;DR: 19 is identified as a potent glucokinase activator with a greater than 50-fold liver-to-pancreas ratio of tissue distribution in rodent and non-rodent species, leading to its selection as a clinical development candidate for treating type 2 diabetes.
Journal ArticleDOI
A novel relay method for determining low-clearance values.
Li Di,Patrick Trapa,R. Scott Obach,Karen Atkinson,Yi-an Bi,Angela Wolford,Beijing Tan,Thomas S. McDonald,Yurong Lai,Larry M. Tremaine +9 more
TL;DR: The results showed that the relay method produced excellent predictions of human in vivo clearance, and the difference between in vitro and in vivo intrinsic clearance was within 2-fold for most compounds, which is similar to the standard prediction accuracy for moderate to high clearance compounds using hepatocytes.
Journal ArticleDOI
Efficient Liver Targeting by Polyvalent Display of a Compact Ligand for the Asialoglycoprotein Receptor
Carlos A. Sanhueza,Carlos A. Sanhueza,Michael M. Baksh,Michael M. Baksh,Benjamin A. Thuma,Marc D. Roy,Sanjay Dutta,Cathy Préville,Boris A. Chrunyk,Kevin Beaumont,Robert Dullea,Mark Ammirati,Shenping Liu,David F. Gebhard,James E. Finley,Christopher T. Salatto,Amanda King-Ahmad,Ingrid A. Stock,Karen Atkinson,Benjamin Reidich,Wen Lin,Rajesh Kumar,Meihua Tu,Elnaz Menhaji-Klotz,David Price,Spiros Liras,M. G. Finn,M. G. Finn,Vincent Mascitti +28 more
TL;DR: The multicomponent construct described here represents a highly efficient delivery vehicle to hepatocytes and exhibits increased ASGPR-directed hepatocellular uptake and prolonged retention compared to a similar GalNAc derived trimer conjugate.
Journal ArticleDOI
Designing glucokinase activators with reduced hypoglycemia risk: discovery of N,N-dimethyl-5-(2-methyl-6-((5-methylpyrazin-2-yl)-carbamoyl)benzofuran-4-yloxy)pyrimidine-2-carboxamide as a clinical candidate for the treatment of type 2 diabetes mellitus
Jeffrey A. Pfefferkorn,Angel Guzman-Perez,Peter J. Oates,John Litchfield,Gary Erik Aspnes,Arindrajit Basak,John William Benbow,Martin A. Berliner,Jianwei Bian,Chulho Choi,Kevin Daniel Freeman-Cook,Jeffrey W. Corbett,Mary Theresa Didiuk,Joshua R. Dunetz,Kevin J. Filipski,William M. Hungerford,Christopher S. Jones,Karki Kapil Kumar,Anthony Lai Ling,Jian-Cheng Li,Leena Patel,Christian Perreault,Hud Lawrence Risley,James Saenz,Wei Song,Meihua Tu,Robert J. Aiello,Karen Atkinson,Nicole Barucci,David A. Beebe,Patricia Bourassa,Francis Bourbounais,Anne M. Brodeur,Rena Burbey,Jing Chen,Theresa D’Aquila,David R. Derksen,Nahor Haddish-Berhane,Cong Huang,James A. Landro,Amanda L. Lapworth,Margit MacDougall,David E. Perregaux,John C. Pettersen,Alan Robertson,Beijing Tan,Judith L. Treadway,Shenping Liu,Xiayang Qiu,John D. Knafels,Mark Ammirati,Xi Song,Paul DaSilva-Jardine,Spiros Liras,Laurel Sweet,Timothy P. Rolph +55 more
TL;DR: This work has investigated a series of substituted 2-methylbenzofurans as “partial activators” of the glucokinase enzyme leading to the identification of N,N-dimethyl-5-(2-methyl-6-((5-methylpyrazin-2-yl)-carbamoyl)benz ofuran-4-yloxy)pyrimidine- 2-carboxamide as an early development candidate.
Journal ArticleDOI
In Vitro–In Vivo Correlation for Low-Clearance Compounds Using Hepatocyte Relay Method
Li Di,Karen Atkinson,Christine C. Orozco,Carrie Funk,Hui Zhang,Thomas S. McDonald,Beijing Tan,Jian Lin,Cheng Chang,R. Scott Obach +9 more
TL;DR: In vitro-in vivo correlation (IVIVC) of intrinsic clearance in preclinical species of rat and dog was established using the hepatocyte relay method to support high-confidence prediction of human pharmacokinetics for low-clearance compounds as discussed by the authors.