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Fixed-dose combinations in type 2 diabetes - role of the canagliflozin metformin combination
Joshua W Fleming1, Laurie W Fleming1, Courtney S Davis1
1Department of Pharmacy Practice, The University of Mississippi School of Pharmacy, Jackson, MS, USA.
Abstract:
Canagliflozin-metformin is one of the newest combination therapies available for the treatment of type 2 diabetes mellitus (T2DM). Canagliflozin is an inhibitor of the sodium-glucose co-transporter 2 which causes an increase in the urinary excretion of glucose. In the present article, we review the safety and efficacy of canagliflozin and metformin from data obtained from Phase III metformin add-on therapy clinical trials as there are no studies to date that specifically evaluate the combination of metformin and canagliflozin. Trials included in this review were dual-therapy trials of subjects who were already taking background metformin and were assigned to receive canagliflozin, glimepiride, or sitagliptin. The addition of canagliflozin to metformin resulted in a decrease in HbA1c of 0.73%-0.93%. Canagliflozin 100 mg was considered to be non-inferior to glimepiride and sitagliptin 100 mg with the canagliflozin 300 mg dose being statistically superior to sitagliptin and glimepiride. Other advantages of the use of canagliflozin are reduction in weight (3.3-4.0 kg) and systolic blood pressure (3.3-4.7 mmHg). The primary disadvantages are potential genital mycotic infections, hypotension, and gastrointestinal side effects from metformin. All things considered, this combination appears to be safe and effective in clinical trials and represents a promising option for the treatment of T2DM.
Insights
Canagliflozin-metformin offers a safe and effective treatment for type 2 diabetes mellitus (T2DM). This combination therapy significantly reduces HbA1c levels, promotes weight loss, and lowers blood pressure.
Area of Science:
- Endocrinology
- Pharmacology
- Metabolic Diseases
Background:
- Type 2 diabetes mellitus (T2DM) management often requires combination therapies.
- Canagliflozin, a sodium-glucose co-transporter 2 inhibitor, enhances glucose excretion.
- Metformin is a first-line T2DM treatment.
Purpose of the Study:
- To review the safety and efficacy of canagliflozin-metformin combination therapy for T2DM.
- To evaluate clinical trial data on canagliflozin add-on therapy to metformin.
Main Methods:
- Review of Phase III clinical trials involving patients with T2DM on background metformin.
- Comparison of canagliflozin (100 mg and 300 mg) versus glimepiride and sitagliptin as add-on therapies.
Main Results:
- Canagliflozin added to metformin reduced HbA1c by 0.73%-0.93%.
- Canagliflozin 300 mg demonstrated superiority over sitagliptin and glimepiride.
- Associated benefits include weight reduction (3.3-4.0 kg) and decreased systolic blood pressure (3.3-4.7 mmHg).
Conclusions:
- The combination of canagliflozin and metformin is a safe and effective option for T2DM treatment.
- Potential side effects include genital mycotic infections and gastrointestinal issues.
- This combination therapy presents a promising treatment strategy for T2DM.
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