Mark R. Rigby, Kristina M. Harris, Ashley Pinckney, Linda A. DiMeglio, Marc S. Rendell, Eric I. Felner, Jean M. Dostou, Stephen E. Gitelman, Kurt J. Griffin, Eva Tsalikian, Peter A. Gottlieb, Carla J. Greenbaum, Nicole A. Sherry, Wayne V. Moore, Roshanak Monzavi, Steven M. Willi, Philip Raskin, Lynette Keyes-Elstein, S. Alice Long, Sai Kanaparthi, Noha Lim, Deborah Phippard, Carol L. Soppe, Margret L. Fitzgibbon, James McNamara, Gerald T. Nepom, Mario R. Ehlers, the Immune Tolerance Network (ITN) T1DAL Study Group
Stephen E. Boag, Rajiv Das, Evgeniya V. Shmeleva, Alan Bagnall, Mohaned Egred, Nicholas Howard, Karim Bennaceur, Azfar Zaman, Bernard Keavney, Ioakim Spyridopoulos
Lisa M. Rice, Cristina M. Padilla, Sarah R. McLaughlin, Allison Mathes, Jessica Ziemek, Salma Goummih, Sashidhar Nakerakanti, Michael York, Giuseppina Farina, Michael L. Whitfield, Robert F. Spiera, Romy B. Christmann, Jessica K. Gordon, Janice Weinberg, Robert W. Simms, Robert Lafyatis
Marie Bleakley, Shelly Heimfeld, Keith R. Loeb, Lori A. Jones, Colette Chaney, Stuart Seropian, Ted A. Gooley, Franziska Sommermeyer, Stanley R. Riddell, Warren D. Shlomchik
BACKGROUND. Individuals treated with the cholesteryl ester transfer protein (CETP) inhibitor anacetrapib exhibit a reduction in both LDL cholesterol and apolipoprotein B (ApoB) in response to monotherapy or combination therapy with a statin. It is not clear how anacetrapib exerts these effects; therefore, the goal of this study was to determine the kinetic mechanism responsible for the reduction in LDL and ApoB in response to anacetrapib.
METHODS. We performed a trial of the effects of anacetrapib on ApoB kinetics. Mildly hypercholesterolemic subjects were randomized to background treatment of either placebo (
RESULTS. Anacetrapib markedly reduced the LDL-ApoB-100 pool size (PS) in both the placebo and ATV groups. These changes in PS resulted from substantial increases in LDL-ApoB-100 FCRs in both groups. Anacetrapib had no effect on LDL-ApoB-100 PRs in either treatment group. Moreover, there were no changes in the PCSK9 PS, FCR, or PR in either group. Anacetrapib treatment was associated with considerable increases in the LDL triglyceride/cholesterol ratio and LDL size by NMR.
CONCLUSION. These data indicate that anacetrapib, given alone or in combination with a statin, reduces LDL-ApoB-100 levels by increasing the rate of ApoB-100 fractional clearance.
TRIAL REGISTRATION. ClinicalTrials.gov NCT00990808.
FUNDING. Merck & Co. Inc., Kenilworth, New Jersey, USA. Additional support for instrumentation was obtained from the National Center for Advancing Translational Sciences (UL1TR000003 and UL1TR000040).
John S. Millar, Gissette Reyes-Soffer, Patricia Jumes, Richard L. Dunbar, Emil M. deGoma, Amanda L. Baer, Wahida Karmally, Daniel S. Donovan, Hashmi Rafeek, Laura Pollan, Junichiro Tohyama, Amy O. Johnson-Levonas, John A. Wagner, Stephen Holleran, Joseph Obunike, Yang Liu, Rajasekhar Ramakrishnan, Michael E. Lassman, David E. Gutstein, Henry N. Ginsberg, Daniel J. Rader
Miguel Verbitsky, Simone Sanna-Cherchi, David A. Fasel, Brynn Levy, Krzysztof Kiryluk, Matthias Wuttke, Alison G. Abraham, Frederick Kaskel, Anna Köttgen, Bradley A. Warady, Susan L. Furth, Craig S. Wong, Ali G. Gharavi
Edward J. Wild, Roberto Boggio, Douglas Langbehn, Nicola Robertson, Salman Haider, James R.C. Miller, Henrik Zetterberg, Blair R. Leavitt, Rainer Kuhn, Sarah J. Tabrizi, Douglas Macdonald, Andreas Weiss
Toidi Adekambi, Chris C. Ibegbu, Stephanie Cagle, Ameeta S. Kalokhe, Yun F. Wang, Yijuan Hu, Cheryl L. Day, Susan M. Ray, Jyothi Rengarajan
Colin R. Lenihan, Stephan Busque, Geraldine Derby, Kristina Blouch, Bryan D. Myers, Jane C. Tan
Gesine Paul, Olof Zachrisson, Andrea Varrone, Per Almqvist, Markus Jerling, Göran Lind, Stig Rehncrona, Bengt Linderoth, Hjalmar Bjartmarz, Lisa L. Shafer, Robert Coffey, Mikael Svensson, Katarina Jansson Mercer, Anton Forsberg, Christer Halldin, Per Svenningsson, Håkan Widner, Jonas Frisén, Sven Pålhagen, Anders Haegerstrand
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