Tirzepatide Outperforms Semaglutide in Diabetes Control
Curator: Dr. Sudipta Saha, Ph. D.
In a recent clinical study published in The New England Journal of Medicine, the effectiveness of tirzepatide was compared with that of semaglutide in patients with type 2 diabetes. The trial was conducted to evaluate which of the two medications offers better glycemic control and weight loss benefits when combined with standard care.
It was found that participants treated with tirzepatide achieved significantly greater reductions in both HbA1c levels and body weight than those who received semaglutide. A once-weekly administration of tirzepatide was shown to be more effective across multiple dosages. These findings were consistent even in patients with longstanding diabetes and those previously treated with insulin or oral agents.
Gastrointestinal side effects were commonly observed in both groups, including nausea and diarrhoea, but were generally mild to moderate in severity. No new safety concerns were identified during the study period.
The enhanced dual agonist mechanism of tirzepatide, which targets both GIP and GLP-1 receptors, is believed to have contributed to its superior efficacy. While semaglutide acts only on the GLP-1 pathway, tirzepatide’s dual action is thought to improve insulin sensitivity, promote satiety, and reduce appetite more robustly.
This trial represents a significant advancement in diabetes care and suggests that tirzepatide may become a preferred treatment option in clinical practice. It has been proposed that future studies investigate its long-term cardiovascular effects, impact on diabetic complications, and cost-effectiveness in diverse populations.
References:
https://www.nejm.org/doi/full/10.1056/NEJMoa2416394
https://www.sciencedirect.com/science/article/pii/S154235652400226X
https://pubmed.ncbi.nlm.nih.gov/29364588
https://pubmed.ncbi.nlm.nih.gov/29364588
https://www.who.int/publications/i/item/9789241565257