title: Randomized dose-response study of rosuvastatin in Japanese patients with hypercholesterolemia.
abstract: Rosuvastatin is a novel statin that has been shown to produce large dose-dependent reductions in low-density lipoprotein cholesterol (LDL-C) in Western hypercholesterolemic patients. Rosuvastatin dose response was assessed in a randomized, double-blind phase II trial in which 112 Japanese patients with fasting LDL-C > 160 and < 220 mg/dl and triglycerides < 300 mg/dl received placebo or rosuvastatin 1, 2.5, 5, 10, 20, or 40 mg once daily for 6 weeks. LDL-C change from baseline showed a linear dose response (p < 0.0001 for slope of regression line) over the rosuvastatin dose range, with each doubling of dose producing an additional 5.12% reduction. Mean reductions (least-squares mean percentage change from baseline from ANOVA) in LDL-C were 35.8% to 66.0% and significantly different from placebo at all doses (p < 0.0001). Linear dose response was also observed for total cholesterol (TC) and apolipoprotein (apo) B, but not for triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), or apo A-I or A-II. Mean changes at 6 weeks were - 25.5 to - 45.1% for TC, - 16.0 to - 26.2% for TG, + 7.5 to + 12.8% for HDL-C, - 31.9 to - 57.8% for apo B, + 5.5 to + 10.0% for apo A-I, and + 0.4 to + 8.1% for apo A-II. Rosuvastatin was well tolerated. Although there was some suggestion of increased frequency of treatment-related adverse events at higher doses, there were no clear dose relationships in safety parameters. Only one patient withdrew from the study because of a treatment-related adverse event. No patients had clinically significant elevations in liver transaminases or creatine kinase. Rosuvastatin produces good dose-related reductions in LDL-C and beneficial changes in other lipid fractions in Japanese hypercholesterolemic patients and is well tolerated.
authors.affiliation: Department of Clinical Cell Biology, Graduate School of Medicine, Chiba University, Chiba, Japan. yashushi@intmed02.m.chiba-u.ac.jp
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Saito
authors.forename: Yuichiro
authors.initials: Y
authors.lastname: Goto
authors.forename: Aaron
authors.initials: A
authors.lastname: Dane
authors.forename: Kristina
authors.initials: K
authors.lastname: Strutt
authors.forename: Ali
authors.initials: A
authors.lastname: Raza
mesh_terms: D000328:Adult; D000368:Aged; D008078:Cholesterol, LDL / Q000097:blood; D004305:Dose-Response Relationship, Drug; D004311:Double-Blind Method; D005260:Female; D005464:Fluorobenzenes / Q000008:administration & dosage* / Q000009:adverse effects; D006801:Humans; D019161:Hydroxymethylglutaryl-CoA Reductase Inhibitors / Q000008:administration & dosage* / Q000009:adverse effects; D006937:Hypercholesterolemia / Q000097:blood / Q000188:drug therapy*; D007564:Japan; D008297:Male; D008875:Middle Aged; D011743:Pyrimidines / Q000008:administration & dosage* / Q000009:adverse effects; D000068718:Rosuvastatin Calcium; D012449:Safety; D013449:Sulfonamides / Q000008:administration & dosage* / Q000009:adverse effects; D014280:Triglycerides / Q000097:blood
chemical_list: D008078:Cholesterol, LDL; D005464:Fluorobenzenes; D019161:Hydroxymethylglutaryl-CoA Reductase Inhibitors; D011743:Pyrimidines; D013449:Sulfonamides; D014280:Triglycerides; D000068718:Rosuvastatin Calcium