Clinical pharmacogenomics of thiopurine S-methyltransferase.

Pharmacogenetics of thiopurine S-methyltransferase and thiopurine therapy.

Most medications exhibit wide interpatient variability in their efficacy and toxicity. For many medications, these interindividual differences result in part from polymorphisms in genes encoding drug-metabolizing enzymes, drug transporters, and/or drug targets (eg, receptors, enzymes). Pharmacogenomics is a burgeoning field aimed at elucidating the genetic basis of differences in drug efficacy ...

Pharmacogenomics of Thiopurine S-Methyltransferase: Clinical Applicability of Genetic Variants

Clinical relevance of thiopurine S-methyltransferase gene polymorphisms.

The therapeutic response to thiopurines may result in either severe toxic or inadequate effect based on the interindividual genetic variability. Same drug doses of various anticancer drugs cause considerable interindividual differences in the therapeutic response. Genetic factors have a major impact on effectiveness of several anticancer drugs such as mercaptopurine, 5-fluorouracil, platinum ag...

Cost-effectiveness of pharmacogenomics in clinical practice: a case study of thiopurine methyltransferase genotyping in acute lymphoblastic leukemia in Europe.

Only a few studies have addressed the cost-effectiveness of pharmacogenetics interventions in healthcare. Lack of health economics data on aspects of pharmacogenetics is perceived as one of the barriers hindering its implementation for improving drug safety. Thus, a recent Institute for Prospective Technological Studies (IPTS) study, entitled 'Pharmacogenetics and pharmacogenomics: state-of-the...

Thiopurine S-methyltransferase (TPMT) assessment prior to starting thiopurine drug treatment; a pharmacogenomic test whose time has come.

Thiopurine S-methyltransferase (TPMT) is involved in the metabolism of thiopurine drugs. Patients that due to genetic variation lack this enzyme or have lower levels than normal, can be adversely affected if normal doses of thiopurines are prescribed. The evidence for measuring TPMT prior to starting patients on thiopurine drug therapy has been reviewed and the various approaches to establishin...