• Yutaka Seino, Takashi Sasaki, Atsushi Fukatsu, Soichi Sakai, and Yoshishige Samukawa.
• Kansai Electric Power Hospital , Osaka , Japan.
• Curr Med Res Opin. 2014 Jul 1; 30 (7): 121912301219-30.

ObjectiveLuseogliflozin is a novel sodium glucose cotransporter 2 inhibitor for type 2 diabetes mellitus (T2DM) treatment. An exploratory Phase II study was conducted to assess the efficacy and safety of several doses of luseogliflozin in Japanese T2DM patients.Patients And MethodsJapanese T2DM patients aged 20-74 years with hemoglobin A1c (HbA1c) of 6.9-10.5%, fasting plasma glucose (FPG) ≥126 mg/dL and on diet therapy were randomized in a double-blind manner to receive luseogliflozin (0.5, 2.5, or 5 mg) or placebo once daily for 12 weeks (n = 61, 61, 61, and 56, respectively). The primary endpoint was the change in HbA1c from baseline to end of treatment. Other endpoints included FPG, 2 h postprandial plasma glucose (PPG) in a meal tolerance test (MTT), and body weight. Drug safety was also assessed.Trial RegistrationJapan Pharmaceutical Information Center (identifier: JapicCTI-090908).ResultsChanges in HbA1c from baseline to end of treatment were -0.36, -0.62, and -0.75% in the 0.5, 2.5, and 5 mg luseogliflozin groups, respectively, versus +0.06% in the placebo group (all P < 0.001). The reductions in FPG and 2 h-PPG in the MTT were also significantly greater in the luseogliflozin groups (all P < 0.01) without increases in insulin levels from baseline. Luseogliflozin reduced body weight at all doses. There were no significant differences in the incidences of adverse events among groups. Most adverse events were mild in severity. There were no serious adverse events.ConclusionsAlthough this was a small-scale study with a short duration, all tested doses of luseogliflozin significantly improved glycemic control, reduced body weight, and were well tolerated in Japanese T2DM patients over the 12-week treatment period.

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