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Pharmacy staff profile

Dr Dan Wright

PositionSenior Lecturer
QualificationsBScPharm(Dal) MA(Brist) MSc PhD(Otago) RegPharmNZ
Research summaryClinical pharmacy; individualisation of drug therapy

Research

My research focuses on the individualisation of drug therapy. The types of questions I ask are; why do people respond differently to the same dose of a drug, what are the factors which determine this variability, and how can we use this information to design dosing regimens that are safe and effective?

I am particularly interested in the time course of drug concentrations in the body (pharmacokinetics), the concentration–effect relationship (pharmacodynamics) and the influence of genetic variability on drug response (pharmacogenetics). I have expertise in pharmacometric methodology including population PKPD modelling and computer simulations.

Publications

Siripuram, V. K., Wright, D. F. B., Barclay, M. L., & Duffull, S. B. (2017). Deterministic identifiability of population pharmacokinetic and pharmacokinetic-pharmacodynamic models. Journal of Pharmacokinetics & Pharmacodynamics. Advance online publication. doi: 10.1007/s10928-017-9530-4

Ooi, Q. X., Wright, D. F. B., Tait, R. C., Isbister, G. K., & Duffull, S. B. (2017). A joint model for vitamin K-dependent clotting factors and anticoagulation proteins. Clinical Pharmacokinetics. Advance online publication. doi: 10.1007/s40262-017-0541-5

Kannangara, D. R. W., Graham, G. G., Wright, D. F. B., Stocker, S. L., Portek, I., Pile, K. D., Barclay, M. L., … Stamp, L. K., & Day, R. O. (2017). Individualising the dose of allopurinol in patients with gout. British Journal of Clinical Pharmacology. Advance online publication. doi: 10.1111/bcp.13307

Duffull, S. B., Wright, D. F. B., Marra, C. A., & Anakin, M. G. (2017). A philosophical framework for pharmacy in the 21st century guided by ethical principles. Research in Social & Administrative Pharmacy. Advance online publication. doi: 10.1016/j.sapharm.2017.04.049

Saffian, S. M., Duffull, S. B., & Wright, D. F. B. (2017). Warfarin dosing algorithms under-predict dose requirements in patients requiring ≥ 7mg daily: A systematic review and meta-analysis. Clinical Pharmacology & Therapeutics. Advance online publication. doi: 10.1002/cpt.649

Journal - Research Article

Siripuram, V. K., Wright, D. F. B., Barclay, M. L., & Duffull, S. B. (2017). Deterministic identifiability of population pharmacokinetic and pharmacokinetic-pharmacodynamic models. Journal of Pharmacokinetics & Pharmacodynamics. Advance online publication. doi: 10.1007/s10928-017-9530-4

Saffian, S. M., Duffull, S. B., & Wright, D. F. B. (2017). Warfarin dosing algorithms under-predict dose requirements in patients requiring ≥ 7mg daily: A systematic review and meta-analysis. Clinical Pharmacology & Therapeutics. Advance online publication. doi: 10.1002/cpt.649

Duffull, S. B., Wright, D. F. B., Marra, C. A., & Anakin, M. G. (2017). A philosophical framework for pharmacy in the 21st century guided by ethical principles. Research in Social & Administrative Pharmacy. Advance online publication. doi: 10.1016/j.sapharm.2017.04.049

Kannangara, D. R. W., Graham, G. G., Wright, D. F. B., Stocker, S. L., Portek, I., Pile, K. D., Barclay, M. L., … Stamp, L. K., & Day, R. O. (2017). Individualising the dose of allopurinol in patients with gout. British Journal of Clinical Pharmacology. Advance online publication. doi: 10.1111/bcp.13307

Ooi, Q. X., Wright, D. F. B., Tait, R. C., Isbister, G. K., & Duffull, S. B. (2017). A joint model for vitamin K-dependent clotting factors and anticoagulation proteins. Clinical Pharmacokinetics. Advance online publication. doi: 10.1007/s40262-017-0541-5

Kuan, I. H. S., Duffull, S. B., Putt, T. L., Schollum, J. B. W., Walker, R. J., & Wright, D. F. B. (2017). A population pharmacokinetic model for 51Cr EDTA to estimate renal function. Clinical Pharmacokinetics, 56(6), 671-678. doi: 10.1007/s40262-016-0489-x

Wright, D. F. B., Doogue, M. P., Barclay, M. L., Chapman, P. T., Cross, N. B., Irvine, J. H., & Stamp, L. K. (2017). A population pharmacokinetic model to predict oxypurinol exposure in patients on haemodialysis. European Journal of Clinical Pharmacology, 73, 71-78. doi: 10.1007/s00228-016-2133-y

Saffian, S. M., Duffull, S. B., Roberts, R. L., Tait, R. C., Black, L., Lund, K. A., … Wright, D. F. B. (2016). Influence of genotype on warfarin maintenance dose predictions produced using a Bayesian dose individualization tool. Therapeutic Drug Monitoring, 38(6), 677-683. doi: 10.1097/ftd.0000000000000347

Wright, D. F. B., Duffull, S. B., Merriman, T. R., Dalbeth, N., Barclay, M. L., & Stamp, L. K. (2016). Predicting allopurinol response in patients with gout. British Journal of Clinical Pharmacology, 81(2), 277-289. doi: 10.1111/bcp.12799

Saffian, S. M., Wright, D. F. B., Roberts, R. L., & Duffull, S. B. (2015). Methods for predicting warfarin dose requirements. Therapeutic Drug Monitoring, 37(4), 531-538. doi: 10.1097/ftd.0000000000000177

Duffull, S. B., & Wright, D. F. B. (2015). What do we learn from repeated population analyses? British Journal of Clinical Pharmacology, 79(1), 40-47. doi: 10.1111/bcp.12233

Chin, P. K. L., Patterson, D. M., Zhang, M., Jensen, B. P., Wright, D. F. B., Barclay, M. L., & Begg, E. J. (2014). Coagulation assays and plasma fibrinogen concentrations in real-world patients with atrial fibrillation treated with dabigatran. British Journal of Clinical Pharmacology, 78(3), 630-638. doi: 10.1111/bcp.12366

Stamp, L. K., Merriman, T. R., Barclay, M. L., Singh, J. A., Roberts, R. L., Wright, D. F. B., & Dalbeth, N. (2014). Impaired response or insufficient dosage? Examining the potential causes of ”inadequate response” to allopurinol in the treatment of gout. Seminars in Arthritis & Rheumatism, 44(2), 170-174. doi: 10.1016/j.semarthrit.2014.05.007

Roberts, R. L., Wallace, M. C., Wright, D. F. B., Cadzow, M., Dalbeth, N., Jones, P. B., Stamp, L. K., Harrison, A. A., Black, M. A., & Merriman, T. R. (2014). Frequency of CYP2C9 polymorphisms in Polynesian people and potential relevance to management of gout with benzbromarone. Joint Bone Spine, 81(2), 160-163. doi: 10.1016/j.jbspin.2013.07.006

Chin, P. K. L., Wright, D. F. B., Zhang, M., Wallace, M. C., Roberts, R. L., Patterson, D. M., Jensen, B. P., Barclay, M. L., & Begg, E. J. (2014). Correlation between trough plasma dabigatran concentrations and estimates of glomerular filtration rate based on creatinine and cystatin C. Drugs in R&D, 14(2), 113-123. doi: 10.1007/s40268-014-0045-9

Chin, P. K. L., Wright, D. F. B., Patterson, D. M., Doogue, M. P., & Begg, E. J. (2014). A proposal for dose-adjustment of dabigatran etexilate in atrial fibrillation guided by thrombin time. British Journal of Clinical Pharmacology, 78(3), 599-609. doi: 10.1111/bcp.12364

Wright, D. F. B., & Duffull, S. B. (2013). A bayesian dose-individualization method for warfarin. Clinical Pharmacokinetics, 52(1), 59-68. doi: 10.1007/s40262-012-0017-6

Wright, D. F. B., Stamp, L. K., Merriman, T. R., Barclay, M. L., Duffull, S. B., & Holford, N. H. G. (2013). The population pharmacokinetics of allopurinol and oxypurinol in patients with gout. European Journal of Clinical Pharmacology, 69(7), 1411-1421. doi: 10.1007/s00228-013-1478-8

Loke, S.-K., Al-Sallami, H. S., Wright, D. F. B., McDonald, J., Jadhav, S., & Duffull, S. B. (2012). Challenges in integrating a complex systems computer simulation in class: An educational design research. Australasian Journal of Educational Technology, 28(4), 671-683. doi: 10.14742/ajet.834

Wright, D. F. B., Pavan Kumar, V. V., Al-Sallami, H. S., & Duffull, S. B. (2011). The influence of dosing time, variable compliance and circadian low-density lipoprotein production on the effect of simvastatin: Simulations from a pharmacokinetic—pharmacodynamic model. Basic & Clinical Pharmacology & Toxicology, 109(6), 494-498. doi: 10.1111/j.1742-7843.2011.00757.x

Wright, D. F. B., Winter, H. R., & Duffull, S. B. (2011). Understanding the time course of pharmacological effect: A PKPD approach. British Journal of Clinical Pharmacology, 71(6), 815-823. doi: 10.1111/j.1365-2125.2011.03925.x

Wright, D. F. B., & Duffull, S. B. (2011). Development of a Bayesian forecasting method for warfarin dose individualisation. Pharmaceutical Research, 28(5), 1100-1111. doi: 10.1007/s11095-011-0369-x

Duffull, S. B., Wright, D. F. B., & Winter, H. R. (2011). Interpreting population pharmacokinetic-pharmacodynamic analyses: A clinical viewpoint. British Journal of Clinical Pharmacology, 71(6), 807-814. doi: 10.1111/j.1365-2125.2010.03891.x

Wright, D. F. B., & Begg, E. J. (2010). The 'apparent clearance' of free phenytoin in elderly vs. younger adults. British Journal of Clinical Pharmacology, 70(1), 132-138. doi: 10.1111/j.1365-2125.2010.03673.x

Wright, D. F. B., Al-Sallami, H. S., Jackson, P. M., & Reith, D. M. (2010). Falsely elevated vancomycin plasma concentrations sampled from central venous implantable catheters (portacaths). British Journal of Clinical Pharmacology, 70(5), 769-772. doi: 10.1111/j.1365-2125.2010.03749.x

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Journal - Research Other

Wright, D. F. B., & Duffull, S. B. (2017). A general empirical model for renal drug handling in pharmacokinetic analyses. British Journal of Clinical Pharmacology. Advance online publication. doi: 10.1111/bcp.13306

Chin, P. K. L., Wright, D. F. B., & Begg, E. J. (2014). Dabigatran in patients with mechanical heart valves. New England Journal of Medicine, 370, 382-383. doi: 10.1056/NEJMc1315004

Chin, P. K. L., & Wright, D. F. B. (2014). [Letter by Chin et al regarding article, "Efficacy and safety of dabigatran compared with warfarin in relation to baseline renal function in patients with atrial fibrillation: A RE-LY (Randomized Evaluation of Long-Term Anticoagulation Therapy) trial analysis"]. Circulation, 130(22), e194. doi: 10.1161/circulationaha.114.010099

Chin, P. K. L., Wright, D. F. B., Doogue, M. P., & Begg, E. J. (2014). Learning more from the dabigatran concentrations in RE-LY. JACC, 63(24), 2746-2747. doi: 10.1016/j.jacc.2013.11.069

Wright, D. F. B., Al-Sallami, H. S., & Duffull, S. B. (2013). Is the dose of dabigatran really more predictable than warfarin? British Journal of Clinical Pharmacology, 76(6), 997-998. doi: 10.1111/bcp.12144

Duffull, S. B., Wright, D. F. B., Al-Sallami, H. S., Zufferey, P. J., & Faed, J. M. (2012). Dabigatran: Rational dose individualisation and monitoring guidance is needed. New Zealand Medical Journal, 125(1357). Retrieved from http://www.nzma.org.nz/journal

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