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Updated: May 20, 2026

Improving IV Insulin Administration in a Community Hospital
Published on: June 11, 2012
Effectiveness of basal-supported oral therapy (BOT) using insulin glargine in patients with poorly controlled type 2
Daisuke Suzuki1, Tomoya Umezono, Masaaki Miyauchi
1Division of Nephrology, Endocrinology and Metabolism, Department of Internal Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan. daisuke@is.icc.u-tokai.ac.jp
Objective:
To determine the clinical usefulness of basal-supported oral therapy (BOT) using insulin glargine in Japanese patients with type 2 diabetes.
Methods:
We compared HbA1c levels, body weight, and insulin doses before the introduction of BOT and in the final month of the observation period in 122 patients with type 2 diabetes who received BOT with insulin glargine between October 2007 and July 2009. To exclude the possible effects of seasonal changes in glycemic control, 57 of the 122 patients were followed-up for one year and examined for changes in HbA1c levels, body weight, and insulin dose.
Results:
Examination of all cases (n=122) showed a significant decrease in HbA1c (before BOT: 8.7±1.8, after: 7.1±1.1%), but no significant change in body weight (before: 63.1±16.1, after: 63.8±17.0 kg). The mean observation period was 10.5±6.4 months. Insulin doses were significantly increased during the study. HbA1c levels improved significantly in patients on non-insulin-secreting drugs (biguanide, α-glucosidase inhibitor and thiazolidine derivatives) than those on insulin-secreting drugs (SU agents and glinides).
Conclusion:
BOT with insulin glargine is a useful strategy that can achieve good glycemic control in clinical practice without causing serious hypoglycemia. The introduction of BOT before exhaustion of pancreatic β cells may increase its effectiveness.
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