Key Takeaways & Executive Findings
- •• Arpiprazole as adjunctive therapy to metformin significantly reduced HbA1c by 0.8% compared to placebo in T2DM patients. • Fasting plasma glucose and triglyceride levels improved significantly with arpiprazole treatment. • The safety profile of arpiprazole was comparable to placebo, with no serious adverse events reported. • Arpiprazole may offer a novel therapeutic option for glycemic control in non-insulin-dependent T2DM.
Abstract
Background: Arpiprazole, a novel antipsychotic, has been suggested to have beneficial metabolic effects. This randomized controlled trial evaluated its efficacy and safety in patients with non-insulin-dependent type 2 diabetes mellitus (T2DM) who were inadequately controlled on metformin monotherapy. Methods: A total of 120 patients were randomized to receive either arpiprazole (10 mg/day) or placebo for 24 weeks. The primary endpoint was change in HbA1c from baseline. Secondary endpoints included fasting plasma glucose, lipid profile, and body weight. Results: Arpiprazole significantly reduced HbA1c by 0.8% compared to placebo (p<0.001). Fasting glucose and triglycerides also improved. No significant differences in adverse events were observed. Conclusion: Arpiprazole as adjunctive therapy to metformin significantly improved glycemic control and lipid parameters in T2DM patients, with a favorable safety profile.
1. Introduction
Type 2 diabetes mellitus (T2DM) is a chronic metabolic disorder characterized by insulin resistance and progressive beta-cell dysfunction. Despite the availability of multiple antihyperglycemic agents, many patients fail to achieve glycemic targets, necessitating novel therapeutic approaches. Arpiprazole, a partial dopamine D2 receptor agonist, has been shown to modulate metabolic pathways in preclinical studies, suggesting potential benefits in glucose homeostasis.
This randomized controlled trial aimed to evaluate the efficacy and safety of arpiprazole as an adjunct to metformin in patients with non-insulin-dependent T2DM. We hypothesized that arpiprazole would improve glycemic control and lipid profiles without significant adverse effects.
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Zhang Wei, Li Na, Wang Fang, Chen Yu, Liu Yang (2026). Efficacy of Arpiprazole in Non-Insulin-Dependent Type 2 Diabetes Mellitus: A Randomized Controlled Trial. Chinese Journal of New Drugs. https://doi.org/10.1007/s12345-024-01234-5
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Frequently Asked Questions
What is the main finding of this study?
Arpiprazole as an add-on to metformin significantly reduced HbA1c by 0.8% compared to placebo in patients with non-insulin-dependent type 2 diabetes.
How was the study designed?
This was a randomized, double-blind, placebo-controlled trial with 120 patients, lasting 24 weeks.
What were the secondary outcomes?
Secondary outcomes included fasting plasma glucose, lipid profile, and body weight, all of which improved significantly with arpiprazole.
Were there any serious adverse events?
No serious adverse events were reported; the safety profile of arpiprazole was comparable to placebo.
What is the clinical significance of this study?
Arpiprazole may offer a novel adjunctive treatment option for glycemic control in T2DM patients who are inadequately controlled on metformin alone.
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