Diabetes Metab J.  2019 Jun;43(3):276-286. 10.4093/dmj.2018.0051.

Efficacy and Safety of Voglibose Plus Metformin in Patients with Type 2 Diabetes Mellitus: A Randomized Controlled Trial

  • 1Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea. drshchoi@snu.ac.kr
  • 2Department of Internal Medicine, Hallym University Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea.
  • 3Department of Internal Medicine, Nowon Eulji Medical Center, Eulji University School of Medicine, Seoul, Korea.
  • 4Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
  • 5Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
  • 6Department of Internal Medicine, National Health Insurance Service Ilsan Hospital, Goyang, Korea.
  • 7Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
  • 8Department of Internal Medicine, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine, Seoul, Korea.
  • 9Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
  • 10Department of Internal Medicine, Inha University School of Medicine, Incheon, Korea.
  • 11Diabetes Center, Endocrinology and Metabolism, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea.
  • 12Department of Internal Medicine, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea.
  • 13Department of Internal Medicine, Hallym University Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea.
  • 14Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon, Korea.
  • 15Department of Internal Medicine, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
  • 16Department of Internal Medicine, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Korea.
  • 17Department of Internal Medicine, Chonbuk National University Hospital, Chonbuk National University Medical School, Jeonju, Korea.
  • 18Department of Endocrinology and Metabolism, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea. endoswpark@gmail.com


Combination of metformin to reduce the fasting plasma glucose level and an α-glucosidase inhibitor to decrease the postprandial glucose level is expected to generate a complementary effect. We compared the efficacy and safety of a fixed-dose combination of voglibose plus metformin (vogmet) with metformin monotherapy in drug-naïve newly-diagnosed type 2 diabetes mellitus.
A total of 187 eligible patients aged 20 to 70 years, with a glycosylated hemoglobin (HbA1c) level of 7.0% to 11.0%, were randomized into either vogmet or metformin treatments for 24 weeks. A change in the HbA1c level from baseline was measured at week 24.
The reduction in the levels of HbA1c was −1.62%±0.07% in the vogmet group and −1.31%±0.07% in the metformin group (P=0.003), and significantly more vogmet-treated patients achieved the target HbA1c levels of <6.5% (P=0.002) or <7% (P=0.039). Glycemic variability was also significantly improved with vogmet treatment, estimated by M-values (P=0.004). Gastrointestinal adverse events and hypoglycemia (%) were numerically lower in the vogmet-treated group. Moreover, a significant weight loss was observed with vogmet treatment compared with metformin (−1.63 kg vs. −0.86 kg, P=0.039).
Vogmet is a safe antihyperglycemic agent that controls blood glucose level effectively, yields weight loss, and is superior to metformin in terms of various key glycemic parameters without increasing the risk of hypoglycemia.


Diabetes mellitus, type 2; Metformin; Voglibose

MeSH Terms

Blood Glucose
Diabetes Mellitus, Type 2*
Hemoglobin A, Glycosylated
Weight Loss
Blood Glucose
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