Impact of ABCG2 and SLCO1B1 polymorphisms on pharmacokinetics of rosuvastatin, atorvastatin and simvastatin acid in Caucasian and Asian subjects: a class effect?

Purpose: Systemic exposure to rosuvastatin is approximately double that of Caucasians in Asian subjects. We investigated whether this pattern of increased exposure exists for other statins.

Methods: Plasma exposure following single-dose rosuvastatin 20 mg, atorvastatin 40 mg or simvastatin 40 mg was studied in Chinese, Japanese and Caucasian subjects.

Rosuvastatin pharmacokinetics and pharmacogenetics in Caucasian and Asian subjects residing in the United States.

Purpose: Systemic exposure to rosuvastatin in Asian subjects living in Japan or Singapore is approximately twice that observed in Caucasian subjects in Western countries or in Singapore. This study was conducted to determine whether pharmacokinetic differences exist among the most populous Asian subgroups and Caucasian subjects in the USA.

Method: Rosuvastatin pharmacokinetics was studied in Chinese, Filipino, Asian-Indian, Korean, Vietnamese, Japanese and Caucasian subjects residing in California.

Effect of CYP2C19 polymorphism on the pharmacokinetics of rosuvastatin in healthy Taiwanese subjects.

CYP2C19 contributes to N-desmethyl rosuvastatin formation in "in vitro" models. Approximately 80% of Taiwanese are CYP2C19 extensive metabolizers (EMs, CYP2C19*1/*1, *1/*2, or *1/*3). We studied the potential effect of CYP2C19 genotypes on rosuvastatin pharmacokinetics in healthy Taiwanese subjects following single and multiple daily oral doses of rosuvastatin calcium (20 mg).

Pharmacokinetic and pharmacodynamic profile of rosuvastatin in patients with end-stage renal disease on chronic haemodialysis.

Background: Rosuvastatin has been shown to provide effective treatment of dyslipidaemia in patients with end-stage renal disease (ESRD) undergoing haemodialysis, but data from controlled trials are very limited on the pharmacokinetics and pharmacodynamics of rosuvastatin in this population.

Objective: The aim of the present study was to better define the pharmacokinetic and pharmacodynamic profiles of repeated doses of rosuvastatin at a starting dose of 10 mg/day in a group of patients with ESRD.

Study Design: This was a single-centre, open-label study of rosuvastatin 10 mg daily, given over a 16-day treatment period in patients with ESRD undergoing chronic haemodialysis.

Development and validation of an LC-MS/MS method for the determination of quetiapine and four related metabolites in human plasma.

Pharmacokinetic measurement of the psychotropic compound quetiapine and four related metabolites in human plasma was conducted using a sensitive and specific liquid-chromatography tandem mass spectrometry (LC-MS/MS) assay that has been developed and validated for this purpose. The assay employs a single liquid-liquid extraction of quetiapine and its N-desalkyl (norquetiapine, M211,803, M1), 7-hydroxy (M214,227, M2), 7-hydroxy N-desalkyl (M236,303, M3), and sulfoxide (M213,841, M4) metabolites from human plasma, and utilizes dual-column separation, using Luna C(18) columns (50mmx2.0mm, 5microm) and positive ionization tandem MS detection in the multiple reaction monitoring (MRM) mode of the analytes and their respective stable labeled internal standards.