PMID- 25531677 OWN - NLM STAT- MEDLINE DCOM- 20151110 LR - 20221207 IS - 1557-8593 (Electronic) IS - 1520-9156 (Print) IS - 1520-9156 (Linking) VI - 17 IP - 3 DP - 2015 Mar TI - Evaluation of the long-term durability and glycemic control of fasting plasma glucose and glycosylated hemoglobin for pioglitazone in Japanese patients with type 2 diabetes. PG - 215-23 LID - 10.1089/dia.2014.0222 [doi] AB - BACKGROUND: This study applied a pharmacodynamic model-based approach to evaluate the long-term durability and glycemic control of pioglitazone in comparison with other oral glucose-lowering drugs in Japanese type 2 diabetes mellitus (T2DM) patients. SUBJECTS AND METHODS: Japanese T2DM patients were enrolled in a prospective, randomized, open-label, blinded-end point study and received pioglitazone with or without other oral glucose-lowering drugs (excluding another thiazolidinedione [TZD]) (n=293) or oral glucose-lowering drugs excluding TZD (n=294). Treatment was adjusted to achieve glycosylated hemoglobin (HbA1c) <6.9%, and samples for fasting plasma glucose (FPG) and HbA1c were collected over 2.5-4 years. A simultaneous cascading indirect response model structure was applied to describe the time course of FPG and HbA1c. HbA1c levels were described using both an FPG-dependent and an FPG-independent function. To account for titration, drug effects for both treatment groups were implemented using a time-dependent Emax model. RESULTS: Pioglitazone was superior in both time to maximum effect and the magnitude of reduction achieved in FPG and HbA1c. A greater reduction in median FPG (-21 mg/dL vs. -9 mg/dL) was observed with pioglitazone (P<0.05). Maximum drug effect for FPG was predicted to occur earlier (11 months) for pioglitazone than for the control group (14 months). The simulated additional reduction in FPG and HbA1c achieved with pioglitazone was predicted to be maintained beyond the currently observed study duration. CONCLUSIONS: Pioglitazone was found to result in improved glycemic control and durability compared with control treatment. This model-based approach enabled the quantification of differences in FPG and HbA1c for both treatment groups and simulation to evaluate longer-term durability on FPG and HbA1c. FAU - Stringer, Frances AU - Stringer F AD - 1 Model Answers Pty Ltd. , Brisbane, Australia . FAU - DeJongh, Joost AU - DeJongh J FAU - Enya, Kazuaki AU - Enya K FAU - Koumura, Emiko AU - Koumura E FAU - Danhof, Meindert AU - Danhof M FAU - Kaku, Kohei AU - Kaku K LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20141222 PL - United States TA - Diabetes Technol Ther JT - Diabetes technology & therapeutics JID - 100889084 RN - 0 (Blood Glucose) RN - 0 (Glycated Hemoglobin A) RN - 0 (Hypoglycemic Agents) RN - 0 (Thiazolidinediones) RN - 0 (hemoglobin A1c protein, human) RN - X4OV71U42S (Pioglitazone) SB - IM MH - Adult MH - Aged MH - Asian People MH - Blood Glucose/*drug effects MH - Diabetes Mellitus, Type 2/blood/*drug therapy MH - Drug Therapy, Combination/methods MH - Fasting/blood MH - Female MH - Glycated Hemoglobin/*drug effects MH - Humans MH - Hypoglycemic Agents/*therapeutic use MH - Japan MH - Male MH - Middle Aged MH - Pioglitazone MH - Prospective Studies MH - Thiazolidinediones/*therapeutic use MH - Time MH - Treatment Outcome PMC - PMC4346657 EDAT- 2014/12/23 06:00 MHDA- 2015/11/11 06:00 PMCR- 2015/03/01 CRDT- 2014/12/23 06:00 PHST- 2014/12/23 06:00 [entrez] PHST- 2014/12/23 06:00 [pubmed] PHST- 2015/11/11 06:00 [medline] PHST- 2015/03/01 00:00 [pmc-release] AID - 10.1089/dia.2014.0222 [pii] AID - 10.1089/dia.2014.0222 [doi] PST - ppublish SO - Diabetes Technol Ther. 2015 Mar;17(3):215-23. doi: 10.1089/dia.2014.0222. Epub 2014 Dec 22.