Diabetes & Metabolism Journal

Original Articles

Drug/Regimen
Efficacy and Safety of Alogliptin-Pioglitazone Combination for Type 2 Diabetes Mellitus Poorly Controlled with Metformin: A Multicenter, Double-Blind Randomized Trial: Ji-Yeon Park, Joonyub Lee, Yoon-Hee Choi, Kyung Wan Min, Kyung Ah Han, Kyu Jeung Ahn, Soo Lim, Young-Hyun Kim, Chul Woo Ahn, Kyung Mook Choi, Kun-Ho Yoon, the Practical Evidence of Antidiabetic Combination Therapy in Korea (PEAK) study investigators; Diabetes Metab J. 2024;48(5):915-928. Published online April 23, 2024; DOI: https://doi.org/10.4093/dmj.2023.0259

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Background
Guidelines for switching to triple combination therapy directly after monotherapy failure are limited. This study investigated the efficacy, long-term sustainability, and safety of either mono or dual add-on therapy using alogliptin and pioglitazone for patients with type 2 diabetes mellitus (T2DM) who did not achieve their target glycemic range with metformin monotherapy.
Methods
The Practical Evidence of Antidiabetic Combination Therapy in Korea (PEAK) was a multicenter, placebo-controlled, double-blind, randomized trial. A total of 214 participants were randomized to receive alogliptin+pioglitazone (Alo+Pio group, n=70), alogliptin (Alo group, n=75), or pioglitazone (Pio group, n=69). The primary outcome was the difference in glycosylated hemoglobin (HbA1c) levels between the three groups at baseline to 24 weeks. For durability, the achievement of HbA1c levels <7% and <6.5% was compared in each group. The number of adverse events was investigated for safety.
Results
After 24 weeks of treatment, the change of HbA1c in the Alo+Pio, Alo, and Pio groups were –1.38%±0.08%, –1.03%±0.08%, and –0.84%±0.08%, respectively. The Alo+Pio group had significantly lower HbA1c levels than the other groups (P=0.0063, P<0.0001) and had a higher proportion of patients with target HbA1c achievement. In addition, insulin sensitivity and β-cell function, lipid profiles, and other metabolic indicators were also improved. There were no significant safety issues in patients treated with triple combination therapy.
Conclusion
Early combination triple therapy showed better efficacy and durability than the single add-on (dual) therapy. Therefore, combination therapy with metformin, alogliptin, and pioglitazone is a valuable early treatment option for T2DM poorly controlled with metformin monotherapy.

Citations

Citations to this article as recorded by

Lipid metabolism in homeostasis and disease
Zhenghao Li, Wende Deng, Lanxuan Yang, Changheng Tang, Jian-Min Yue, Olivia Monteiro, Daniel T. Baptista-Hon, Ting Li
Signal Transduction and Targeted Therapy.2026;[Epub] CrossRef
Alogliptin-Pioglitazone and Insulin Regimen for Inpatient Glycemic Control: A Randomized Continuous Glucose Monitoring Pilot Trial
Parson Camuto, Dioze Guadagnini, Heloisa B. Assalin, Daniela O. Magro, Andrey Santos, Mario JA. Saad
AACE Endocrinology and Diabetes.2026; 13(5): 762. CrossRef
Fixed-dose combinations of hypoglycemic drugs: potential of alogliptin/pioglitazone in type 2 diabetes mellitus: a review
Olga I. Butranova, Sergey K. Zyryanov, Anna R. Melnikova, Anastasia E. Matsepuro
Terapevticheskii arkhiv.2025; 97(8): 735. CrossRef
Triple oral therapy with metformin, DPP‐4 inhibitor, and SGLT2 inhibitor for adults with type 2 diabetes: Consensus recommendations of a Chinese expert panel (version 2025)
Miao Yu, Tong Wang, Chun Xu, Yan Bi, Ling Gao, Guang Wang, Guangda Xiang, Yaoming Xue, Tao Yang, Deying Kang, Zhiguang Zhou, Lixin Guo, Xinhua Xiao
Diabetes, Obesity and Metabolism.2025; 27(S9): 3. CrossRef
Thiazolidinediones for people with chronic kidney disease and diabetes
Patrizia Natale, Suetonia C Green, David J Tunnicliffe, Giovanni Pellegrino, Tadashi Toyama, Pantelis Sarafidis, Giovanni FM Strippoli
Cochrane Database of Systematic Reviews.2025;[Epub] CrossRef
Targeting adipose remodeling: Synergistic mechanisms of drugs and adipose-derived stem cells in obese type 2 diabetes mellitus
Cheng Luo, Xian-Mei Yu, Liang-Yan Hua, Mei-Qi Zeng, Hui Xu, Cheng-Zheng Duan, Shi-Yu Xu, Da Sun, Li-Ya Ye, Dong-Juan He
World Journal of Stem Cells.2025;[Epub] CrossRef
Nuclear receptors as therapeutic targets in metabolic and cardiovascular disorders
Feifei Li, Qiujing Chen, Yang Dai, Lin Lu
iScience.2025; 28(12): 114042. CrossRef

Drug/Regimen
Comparison of Efficacy of Glimepiride, Alogliptin, and Alogliptin-Pioglitazone as the Initial Periods of Therapy in Patients with Poorly Controlled Type 2 Diabetes Mellitus: An Open-Label, Multicenter, Randomized, Controlled Study: Hae Jin Kim, In Kyung Jeong, Kyu Yeon Hur, Soo-Kyung Kim, Jung Hyun Noh, Sung Wan Chun, Eun Seok Kang, Eun-Jung Rhee, Sung Hee Choi; Diabetes Metab J. 2022;46(5):689-700. Published online March 17, 2022; DOI: https://doi.org/10.4093/dmj.2021.0183

13,584 View
446 Download
6 Web of Science
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Abstract PDF Supplementary Material PubReader ePub

Background
The choice of an optimal oral hypoglycemic agent in the initial treatment periods for type 2 diabetes mellitus (T2DM) patients remains difficult and deliberate. We compared the efficacy and safety of glimepiride (GLIM), alogliptin (ALO), and alogliptin-pioglitazone (ALO-PIO) in poorly controlled T2DM patients with drug-naïve or metformin failure.
Methods
In this three-arm, multicenter, open-label, randomized, controlled trial, poorly controlled T2DM patients were randomized to receive GLIM (n=35), ALO (n=31), or ALO-PIO (n=33) therapy for 24 weeks. The primary endpoint was change in the mean glycosylated hemoglobin (HbA1c) levels at week 24 from baseline. Secondary endpoints were changes in HbA1c level at week 12 from baseline, fasting plasma glucose (FPG) levels, lipid profiles at weeks 12 and 24, and parameters of glycemic variability, assessed by continuous glucose monitoring for 24 weeks.
Results
At weeks 12 and 24, the ALO-PIO group showed significant reduction in HbA1c levels compared to the ALO group (–0.96%±0.17% vs. –0.37%±0.17% at week 12; –1.13%±0.19% vs. –0.18%±0.2% at week 24). The ALO-PIO therapy caused greater reduction in FPG levels and significant increase in high-density lipoprotein cholesterol levels at weeks 12 and 24 than the ALO therapy. Compared to low-dose GLIM therapy, ALO-PIO therapy showed greater improvement in glycemic variability. The adverse events were similar among the three arms.
Conclusion
ALO-PIO combination therapy during the early period exerts better glycemic control than ALO monotherapy and excellency in glycemic variability than low-dose sulfonylurea therapy in uncontrolled, drug-naïve or metformin failed T2DM patients.

Citations

Citations to this article as recorded by

Assessment of the effectiveness and safety of fixed-dose combination of alogliptin and pioglitazone in real clinical practice: results of the PROsperity study
M. V. Shestakova, M. I. Kharakhulakh, Y. A. Belolipetsky
Diabetes mellitus.2025; 28(2): 198. CrossRef
Fixed-dose combinations of hypoglycemic drugs: potential of alogliptin/pioglitazone in type 2 diabetes mellitus: a review
Olga I. Butranova, Sergey K. Zyryanov, Anna R. Melnikova, Anastasia E. Matsepuro
Terapevticheskii arkhiv.2025; 97(8): 735. CrossRef
Innovative Lipid-Lowering Strategies: RNA-Based, Small Molecule, and Protein-Based Therapies
Youngwoo Jang, Eun-Jung Rhee, Sung Hee Choi
Endocrinology and Metabolism.2025; 40(5): 668. CrossRef
A Comprehensive Review on Weight Loss Associated with Anti-Diabetic Medications
Fatma Haddad, Ghadeer Dokmak, Maryam Bader, Rafik Karaman
Life.2023; 13(4): 1012. CrossRef
Role of Dipeptidyl Peptidase 4 Inhibitors in Antidiabetic Treatment
Ruili Yin, Yongsong Xu, Xin Wang, Longyan Yang, Dong Zhao
Molecules.2022; 27(10): 3055. CrossRef

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