EUropean Pharmacogenetics of AntiCoagulant Therapy - Warfarin (EU-PACT)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.

ClinicalTrials.gov Identifier: NCT01119300

Recruitment Status : Completed

First Posted : May 7, 2010

Last Update Posted : December 3, 2014

Sponsor:

Collaborators:

Utrecht University

Leiden University Medical Center

Erasmus Medical Center

University of Ulm

Newcastle University

University of Liverpool

LGC Limited

Uppsala University

Democritus University of Thrace

Elisabethinen Hospital

Information provided by (Responsible Party):

Anke-Hilse Maitland-van der Zee, Utrecht Institute for Pharmaceutical Sciences

No Study Results Posted on ClinicalTrials.gov for this Study

About Study Results Reporting on ClinicalTrials.gov

Recruitment Status :	Completed
Actual Primary Completion Date :	October 2013
Actual Study Completion Date :	October 2013

Publications of Results:

Pirmohamed M, Burnside G, Eriksson N, Jorgensen AL, Toh CH, Nicholson T, Kesteven P, Christersson C, Wahlström B, Stafberg C, Zhang JE, Leathart JB, Kohnke H, Maitland-van der Zee AH, Williamson PR, Daly AK, Avery P, Kamali F, Wadelius M; EU-PACT Group. A randomized trial of genotype-guided dosing of warfarin. N Engl J Med. 2013 Dec 12;369(24):2294-303. doi: 10.1056/NEJMoa1311386. Epub 2013 Nov 19.

Other Publications:

van Schie RM, Wadelius MI, Kamali F, Daly AK, Manolopoulos VG, de Boer A, Barallon R, Verhoef TI, Kirchheiner J, Haschke-Becher E, Briz M, Rosendaal FR, Redekop WK, Pirmohamed M, Maitland van der Zee AH. Genotype-guided dosing of coumarin derivatives: the European pharmacogenetics of anticoagulant therapy (EU-PACT) trial design. Pharmacogenomics. 2009 Oct;10(10):1687-95. doi: 10.2217/pgs.09.125.

Verhoef TI, Redekop WK, Darba J, Geitona M, Hughes DA, Siebert U, de Boer A, Maitland-van der Zee AH, Barallon R, Briz M, Daly A, Haschke-Becher E, Kamali F, Kirchheiner J, Manolopoulos VG, Pirmohamed M, Rosendaal FR, van Schie RM, Wadelius M; EU-PACT Group. A systematic review of cost-effectiveness analyses of pharmacogenetic-guided dosing in treatment with coumarin derivatives. Pharmacogenomics. 2010 Jul;11(7):989-1002. doi: 10.2217/pgs.10.74. Review.

van Schie RM, Jorgensen AL, de Boer A, Maitland-van der Zee AH; EU-PACT study group. Systematic review of pharmacogenetic warfarin dosing. J Gen Intern Med. 2009 Oct;24(10):1171. doi: 10.1007/s11606-009-1083-9.

van Schie RM, Verhoef TI, Boejharat SB, Schalekamp T, Wessels JA, le Cessie S, Rosendaal FR, van der Meer FJ, de Boer A, Maitland-van der Zee AH. Evaluation of the effect of statin use on the acenocoumarol and phenprocoumon maintenance dose. Drug Metabol Drug Interact. 2012;27(4):229-34.

Verhoef TI, Redekop WK, Hegazy H, de Boer A, Maitland-van der Zee AH; EU-PACT group. Long-term anticoagulant effects of CYP2C9 and VKORC1 genotypes in phenprocoumon users. J Thromb Haemost. 2012 Dec;10(12):2610-2. doi: 10.1111/jth.12007.

Verhoef TI, Redekop WK, van Schie RM, Bayat S, Daly AK, Geitona M, Haschke-Becher E, Hughes DA, Kamali F, Levin LÅ, Manolopoulos VG, Pirmohamed M, Siebert U, Stingl JC, Wadelius M, de Boer A, Maitland-van der Zee AH; EU-PACT group. Cost-effectiveness of pharmacogenetics in anticoagulation: international differences in healthcare systems and costs. Pharmacogenomics. 2012 Sep;13(12):1405-17. Review.

van Schie RM, el Khedr N, Verhoef TI, Teichert M, Stricker BH, Hofman A, Buhre PN, Wessels JA, Schalekamp T, le Cessie S, van der Meer FJ, Rosendaal FR, de Boer A, Maitland-van der Zee AH, Visser LE. Validation of the acenocoumarol EU-PACT algorithms: similar performance in the Rotterdam Study cohort as in the original study. Pharmacogenomics. 2012 Aug;13(11):1239-45. doi: 10.2217/pgs.12.101.

van Schie RM, Babajeff AM, Schalekamp T, Wessels JA, le Cessie S, de Boer A, van der Meer FJ, van Meegen E, Verhoef TI, Rosendaal FR, Maitland-van der Zee AH; EU-PACT study group. An evaluation of gene-gene interaction between the CYP2C9 and VKORC1 genotypes affecting the anticoagulant effect of phenprocoumon and acenocoumarol. J Thromb Haemost. 2012 May;10(5):767-72. doi: 10.1111/j.1538-7836.2012.04694.x.

Verhoef TI, Redekop WK, Buikema MM, Schalekamp T, Van Der Meer FJ, Le Cessie S, Wessels JA, Van Schie RM, De Boer A, Teichert M, Visser LE, Maitland-Van Der Zee AH; EU-PACT Group. Long-term anticoagulant effects of the CYP2C9 and VKORC1 genotypes in acenocoumarol users. J Thromb Haemost. 2012 Apr;10(4):606-14. doi: 10.1111/j.1538-7836.2012.04633.x.

Avery PJ, Jorgensen A, Hamberg AK, Wadelius M, Pirmohamed M, Kamali F; EU-PACT Study Group. A proposal for an individualized pharmacogenetics-based warfarin initiation dose regimen for patients commencing anticoagulation therapy. Clin Pharmacol Ther. 2011 Nov;90(5):701-6. doi: 10.1038/clpt.2011.186. Epub 2011 Sep 28.

van Schie RM, Wessels JA, le Cessie S, de Boer A, Schalekamp T, van der Meer FJ, Verhoef TI, van Meegen E, Rosendaal FR, Maitland-van der Zee AH; EU-PACT Study Group. Loading and maintenance dose algorithms for phenprocoumon and acenocoumarol using patient characteristics and pharmacogenetic data. Eur Heart J. 2011 Aug;32(15):1909-17. doi: 10.1093/eurheartj/ehr116. Epub 2011 Jun 2. Erratum in: Eur Heart J. 2013 Jun;34(24):1854.

van Schie RM, Wessels JA, Verhoef TI, Schalekamp T, le Cessie S, van der Meer FJ, Rosendaal FR, Visser LE, Teichert M, Hofman A, Buhre PN, de Boer A, Maitland-van der Zee AH. Evaluation of the effect of genetic variations in GATA-4 on the phenprocoumon and acenocoumarol maintenance dose. Pharmacogenomics. 2012 Dec;13(16):1917-23. doi: 10.2217/pgs.12.174.

Verhoef TI, Zuurhout MJ, van Schie RM, Redekop WK, van der Meer FJ, le Cessie S, Schalekamp T, de Boer A, Maitland-van der Zee AH. The effect of omeprazole and esomeprazole on the maintenance dose of phenprocoumon. Br J Clin Pharmacol. 2012 Dec;74(6):1068-9. doi: 10.1111/j.1365-2125.2012.04295.x.

van Schie RM, de Boer A, Maitland-van der Zee AH. Implementation of pharmacogenetics in clinical practice is challenging. Pharmacogenomics. 2011 Sep;12(9):1231-3. doi: 10.2217/pgs.11.81.

van Schie RM, Cascorbi I, Maitland-van der Zee AH. Conference Scene: Pharmacogenomics at the second PharmSciFair 2009: adverse drug reactions and clinical implementation. Pharmacogenomics. 2009 Sep;10(9):1389-91. doi: 10.2217/pgs.09.95.

To Top