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Efficacy and safety of biphasic insulin aspart 30 combined with pioglitazone in type 2 diabetes poorly controlled on glibenclamide (glyburide) monotherapy or combination therapy: an 18-week, randomized, open-label study.
Clin Ther. 2005 Sep; 27(9):1432-43.CT

Abstract

BACKGROUND

Few large randomized controlled trials have assessed the value of adding insulin to an oral antidiabetic drug regimen.

OBJECTIVE

This trial compared the efficacy and safety of biphasic insulin aspart 30/70 (BIAsp 30) plus pioglitazone (n = 93), glibenclamide (glyburide) plus pioglitazone (n = 91), or BIAsp 30 monotherapy (n = 97).

METHODS

This 18-week, multinational, multicenter, randomized, open-label, parallel-group trial involved 281 patients with type 2 diabetes (60% male; mean age, 56 years; mean body mass index, 29.5 kg/m2) with inadequate glycemic control (mean glycosylated hemoglobin [HbA(1c)], 9.5%; range, 7.4%-14.7%) on glibenclamide monotherapy or combination therapy. The primary objective was to compare end-of-trial HbA(1c) among the 3 treatment groups. Fasting and mean 7- and 8-point blood glucose profiles, blood lipid levels, plasminogen activator inhibitor levels, adverse events, and hypoglycemia frequency were also compared. Patients using BIAsp 30 (alone or with pioglitazone) were injected twice daily (immediately before breakfast and dinner). Pioglitazone (30 mg/d) and glibenclamide (5-15 mg/d) were taken orally once daily with or immediately after breakfast.

RESULTS

At the end of the trial, HbA(1c) was significantly lower for the BIAsp 30 plus pioglitazone group than for the glibenclamide plus pioglitazone group (mean [SD], -0.64% [0.23%]; P = 0.005) and the BIAsp 30 monotherapy group (-0.60% [0.22%]; P = 0.008). Mean (SD) fasting blood glucose (before breakfast) was significantly lower for BIAsp 30 plus pioglitazone than for glibenclamide plus pioglitazone (153 [45] mg/dL vs 169 [65] mg/dL, respectively; P = 0.012). Each time point on the 8-point blood glucose profile was lower for BIAsp 30 plus pioglitazone than for glibenclamide plus pioglitazone (P < 0.001 to P < 0.05). No major hypoglycemic episodes were reported, and the absolute rate of hypoglycemic events was low (<1 event/patient-week) in the BIAsp-only group. Edema was reported in < or =9% of patients in each treatment group, but no occurrence was classified as serious. Weight gain (mean, 4.0 kg) was more common in the BIAsp plus pioglitazone group (8%); however, this was consistent with improved glycemic control and is similar to that reported in other pioglitazone trials.

CONCLUSIONS

BIAsp 30 plus pioglitazone provided an efficacious and well-tolerated treatment alternative to glibenclamide plus pioglitazone or BIAsp 30 alone in this population of patients who previously were not well controlled on glibenclamide monotherapy or combination therapy.

Authors+Show Affiliations

Diabetes Unit, Hadassah Hebrew University Hospital, Jerusalem, Israel. ntv502@netvision.net.ilNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Comparative Study
Journal Article
Multicenter Study
Randomized Controlled Trial
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16291416

Citation

Raz, Itamar, et al. "Efficacy and Safety of Biphasic Insulin Aspart 30 Combined With Pioglitazone in Type 2 Diabetes Poorly Controlled On Glibenclamide (glyburide) Monotherapy or Combination Therapy: an 18-week, Randomized, Open-label Study." Clinical Therapeutics, vol. 27, no. 9, 2005, pp. 1432-43.
Raz I, Stranks S, Filipczak R, et al. Efficacy and safety of biphasic insulin aspart 30 combined with pioglitazone in type 2 diabetes poorly controlled on glibenclamide (glyburide) monotherapy or combination therapy: an 18-week, randomized, open-label study. Clin Ther. 2005;27(9):1432-43.
Raz, I., Stranks, S., Filipczak, R., Joshi, P., Lertoft, B., Rastam, J., Chow, C. C., & Shaban, J. (2005). Efficacy and safety of biphasic insulin aspart 30 combined with pioglitazone in type 2 diabetes poorly controlled on glibenclamide (glyburide) monotherapy or combination therapy: an 18-week, randomized, open-label study. Clinical Therapeutics, 27(9), 1432-43.
Raz I, et al. Efficacy and Safety of Biphasic Insulin Aspart 30 Combined With Pioglitazone in Type 2 Diabetes Poorly Controlled On Glibenclamide (glyburide) Monotherapy or Combination Therapy: an 18-week, Randomized, Open-label Study. Clin Ther. 2005;27(9):1432-43. PubMed PMID: 16291416.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Efficacy and safety of biphasic insulin aspart 30 combined with pioglitazone in type 2 diabetes poorly controlled on glibenclamide (glyburide) monotherapy or combination therapy: an 18-week, randomized, open-label study. AU - Raz,Itamar, AU - Stranks,Stephen, AU - Filipczak,Robert, AU - Joshi,Pankaj, AU - Lertoft,Benedikte, AU - Rastam,Jacob, AU - Chow,Chun-Chung, AU - Shaban,Joseph, PY - 2005/06/15/accepted PY - 2005/11/18/pubmed PY - 2006/11/14/medline PY - 2005/11/18/entrez SP - 1432 EP - 43 JF - Clinical therapeutics JO - Clin Ther VL - 27 IS - 9 N2 - BACKGROUND: Few large randomized controlled trials have assessed the value of adding insulin to an oral antidiabetic drug regimen. OBJECTIVE: This trial compared the efficacy and safety of biphasic insulin aspart 30/70 (BIAsp 30) plus pioglitazone (n = 93), glibenclamide (glyburide) plus pioglitazone (n = 91), or BIAsp 30 monotherapy (n = 97). METHODS: This 18-week, multinational, multicenter, randomized, open-label, parallel-group trial involved 281 patients with type 2 diabetes (60% male; mean age, 56 years; mean body mass index, 29.5 kg/m2) with inadequate glycemic control (mean glycosylated hemoglobin [HbA(1c)], 9.5%; range, 7.4%-14.7%) on glibenclamide monotherapy or combination therapy. The primary objective was to compare end-of-trial HbA(1c) among the 3 treatment groups. Fasting and mean 7- and 8-point blood glucose profiles, blood lipid levels, plasminogen activator inhibitor levels, adverse events, and hypoglycemia frequency were also compared. Patients using BIAsp 30 (alone or with pioglitazone) were injected twice daily (immediately before breakfast and dinner). Pioglitazone (30 mg/d) and glibenclamide (5-15 mg/d) were taken orally once daily with or immediately after breakfast. RESULTS: At the end of the trial, HbA(1c) was significantly lower for the BIAsp 30 plus pioglitazone group than for the glibenclamide plus pioglitazone group (mean [SD], -0.64% [0.23%]; P = 0.005) and the BIAsp 30 monotherapy group (-0.60% [0.22%]; P = 0.008). Mean (SD) fasting blood glucose (before breakfast) was significantly lower for BIAsp 30 plus pioglitazone than for glibenclamide plus pioglitazone (153 [45] mg/dL vs 169 [65] mg/dL, respectively; P = 0.012). Each time point on the 8-point blood glucose profile was lower for BIAsp 30 plus pioglitazone than for glibenclamide plus pioglitazone (P < 0.001 to P < 0.05). No major hypoglycemic episodes were reported, and the absolute rate of hypoglycemic events was low (<1 event/patient-week) in the BIAsp-only group. Edema was reported in < or =9% of patients in each treatment group, but no occurrence was classified as serious. Weight gain (mean, 4.0 kg) was more common in the BIAsp plus pioglitazone group (8%); however, this was consistent with improved glycemic control and is similar to that reported in other pioglitazone trials. CONCLUSIONS: BIAsp 30 plus pioglitazone provided an efficacious and well-tolerated treatment alternative to glibenclamide plus pioglitazone or BIAsp 30 alone in this population of patients who previously were not well controlled on glibenclamide monotherapy or combination therapy. SN - 0149-2918 UR - https://www.unboundmedicine.com/medline/citation/16291416/Efficacy_and_safety_of_biphasic_insulin_aspart_30_combined_with_pioglitazone_in_type_2_diabetes_poorly_controlled_on_glibenclamide__glyburide__monotherapy_or_combination_therapy:_an_18_week_randomized_open_label_study_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0149-2918(05)00166-9 DB - PRIME DP - Unbound Medicine ER -