title: Efficacy and safety of sitagliptin monotherapy in Japanese patients with type 2 diabetes.
abstract: Efficacy and tolerability of sitagliptin, a dipeptidyl peptidase-4 inhibitor, were assessed in Japanese patients with type 2 diabetes. In a multicenter, double-blind, randomized, placebo-controlled trial in Japan, 151 patients with inadequate glycemic control [HbA(1c) > or =6.5% to <10%, fasting plasma glucose (FPG) > or =126 to < or =240 mg/dL] were randomized to once-daily sitagliptin 100mg or placebo for 12 weeks. After 12 weeks, the least squares (LS) mean change from baseline HbA(1c) was -0.65% (95% CI: -0.80, -0.50) with sitagliptin versus 0.41% (0.26, 0.56) with placebo [between-group difference=-1.05% (-1.27, -0.84); p<0.001]. LS mean change from baseline FPG was -22.5mg/dL (95% CI: -28.0, -17.0) with sitagliptin versus 9.4 mg/dL (3.9, 14.9) with placebo [between-group difference=-31.9 mg/dL (95% CI: -39.7,-24.1); p<0.001]. More patients achieved HbA(1c) <7% or <6.5% with sitagliptin than with placebo (p<0.001). Following a meal tolerance test, 2-h postprandial glucose was significantly reduced with sitagliptin relative to placebo. Clinical and laboratory adverse experiences were similar between treatments, with no reported hypoglycemia adverse events with sitagliptin. Body weight was unchanged relative to baseline in the sitagliptin group (-0.1 kg), but significantly (p<0.01) different relative to the placebo group (-0.7 kg). In this study, once-daily sitagliptin 100mg for 12 weeks improved fasting and postprandial glycemic control and was generally well tolerated in Japanese patients with type 2 diabetes.
authors.affiliation: Banyu Pharmaceutical Co. Ltd., Tokyo, Japan. kenji_nonaka@merck.com
authors.forename: Kenji
authors.initials: K
authors.lastname: Nonaka
authors.forename: Taro
authors.initials: T
authors.lastname: Kakikawa
authors.forename: Asako
authors.initials: A
authors.lastname: Sato
authors.forename: Kotoba
authors.initials: K
authors.lastname: Okuyama
authors.forename: Go
authors.initials: G
authors.lastname: Fujimoto
authors.forename: Naoki
authors.initials: N
authors.lastname: Kato
authors.forename: Hideyo
authors.initials: H
authors.lastname: Suzuki
authors.forename: Yukio
authors.initials: Y
authors.lastname: Hirayama
authors.forename: Tuli
authors.initials: T
authors.lastname: Ahmed
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Davies
authors.forename: Peter P
authors.initials: PP
authors.lastname: Stein
mesh_terms: D000328:Adult; D017668:Age of Onset; D000368:Aged; D003924:Diabetes Mellitus, Type 2 / Q000188:drug therapy*; D004311:Double-Blind Method; D004334:Drug Administration Schedule; D005260:Female; D005951:Glucose Tolerance Test; D006442:Glycated Hemoglobin / Q000187:drug effects / Q000378:metabolism; D006801:Humans; D007004:Hypoglycemic Agents / Q000008:administration & dosage / Q000627:therapeutic use*; D007564:Japan; D008297:Male; D008875:Middle Aged; D010919:Placebos; D011719:Pyrazines / Q000008:administration & dosage / Q000627:therapeutic use*; D012449:Safety; D000068900:Sitagliptin Phosphate; D014230:Triazoles / Q000008:administration & dosage / Q000627:therapeutic use*
chemical_list: D006442:Glycated Hemoglobin; D007004:Hypoglycemic Agents; D010919:Placebos; D011719:Pyrazines; D000068900:Sitagliptin Phosphate; D014230:Triazoles