Gliclazide Modified Release: Results of a 2-year Study in Patients With Type 2 Diabetes

Diabetes Obes Metab. 2004 Nov;6(6):414-21. doi: 10.1111/j.1462-8902.2004.00404.x.


Aim: To evaluate the efficacy and safety of gliclazide modified release (MR), alone or combined with other oral antidiabetic drug(s) over 2 years in type 2 diabetic patients.

Methods: Two consecutive periods: (i) a 10-month, double-blind comparative study, where 800 type 2 diabetic patients were randomized either to gliclazide MR (30-120 mg) once daily or to gliclazide (80-320 mg) twice daily. All the patients were then treated with gliclazide MR for a 2-month switch period; (ii) 549 patients were subsequently enrolled in a 12-month, open-label period on gliclazide MR alone or in combination according to glycaemic control, 507 of whom completed the study.

Results: Glycated haemoglobin (HbA1c) significantly decreased from baseline over 2 years by -0.46 +/- 1.08% in the whole cohort of 2-year completed patients, -0.95% in the subgroup of diet-failed patients and by -0.34% in the subgroup of patients pretreated with one oral antidiabetic drug. HbA1c was reduced by -0.43 +/- 1.02% and by -0.51 +/- 1.16%, when gliclazide MR was used in monotherapy and in combination therapy, respectively. The overall incidence of symptoms suggestive of hypoglycaemia was 4.8 episodes/100 patient-year, with no severe episode. This incidence was similarly low in elderly patients and patients with impaired renal function.

Conclusion: Gliclazide MR alone or in combination with another oral antidiabetic drug significantly improved glycaemic control in type 2 diabetic patients over 2 years with a very good safety profile, notably in the elderly and in patients with impaired renal function.

Publication types

  • Clinical Trial
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Blood Glucose / drug effects
  • Blood Glucose / metabolism
  • Diabetes Mellitus, Type 2 / blood
  • Diabetes Mellitus, Type 2 / drug therapy*
  • Dose-Response Relationship, Drug
  • Double-Blind Method
  • Drug Administration Schedule
  • Drug Therapy, Combination
  • Female
  • Gliclazide / administration & dosage*
  • Gliclazide / adverse effects
  • Gliclazide / therapeutic use
  • Glycated Hemoglobin A / metabolism
  • Humans
  • Hypoglycemic Agents / administration & dosage*
  • Hypoglycemic Agents / adverse effects
  • Hypoglycemic Agents / therapeutic use
  • Lipids / blood
  • Male
  • Middle Aged


  • Blood Glucose
  • Glycated Hemoglobin A
  • Hypoglycemic Agents
  • Lipids
  • Gliclazide