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Research shows the newest glucose-lowering drug could reduce the risks of renal and respiratory diseases

Data shows the newest glucose-lowering drug could reduce the risks of renal and respiratory diseases
Subgroup Analysis (by Sex) for the Association of Sodium-Glucose Cotransporter 2 Inhibitors With Risk of Incident Obstructive Airway Disease. Credit: JAMA Network Open (2023). DOI: 10.1001/jamanetworkopen.2022.51177

A research team in the Department of Pharmacology and Pharmacy, LKS Faculty of Medicine, the University of Hong Kong (HKUMed) has discovered that sodium-glucose cotransporter 2 inhibitors (SGLT2i) could reduce the risks of renal and respiratory diseases, including end-stage renal disease (ESRD), obstructive airway disease (OAD) and pneumonia in a retrospective cohort study.

These studies provided novel real-world evidence that SGLT2i could confer extra-glycemic protection to patients with type 2 diabetes and potentially be a better alternative to an older class of glucose-lowering drugs, dipeptidyl peptidase-4 inhibitors (DPP4i). The discovery has been published in The Journal of Clinical Endocrinology & Metabolism and JAMA Network Open.

SGLT2i are a new class of second-line glucose-lowering drugs for type 2 diabetes. Placebo-controlled and multinational observational studies have shown that besides glycemic control, SGLT2i also confer cardiovascular and renal protection in patients with type 2 diabetes over the past few years.

However, it is not clear whether SGLT2i could provide better cardiorenal protection when compared to individual classes of older glucose-lowering drugs that have been widely prescribed in recent years, such as DPP4i. A retrospective cohort study has been conducted so to investigate the association of SGLT2i, with 4 renal outcomes, namely ESRD, albuminuria, (ARF), and the decline in estimated (eGFR).

The team also conducted another to investigate the association of SGLT2i with the risk of OAD and pneumonia because SGLT2i were shown to inhibit the lung NLRP3 inflammasome activation, which has been implicated in both asthmatic airway inflammation and (COPD) exacerbations in some animal studies.

From a cohort of more than 30,000 patients with type 2 diabetes in Hong Kong, after adjusting for potential confounders, the team found that compared to DPP4i, SGLT2i were significantly associated (P-value <0.05) with an 81% reduced risk of ESRD, a 70% reduced risk of ARF, a 50% reduced risk of albuminuria, as well as a slower decline in eGFR. These findings agreed with the results from previous clinical trials and provided real-world evidence suggesting that SGLT2i could confer additional renal protective effects.

For respiratory outcomes, SGLT2i were significantly associated with a 35% reduced risk of OAD and a 46% reduced rate of OAD exacerbations, as well as a 41% reduced risk of pneumonia. The findings showed novel evidence that SGLT2i could be protective against OAD and pneumonia. Clinical trials should be carried out for the examination of these respiratory outcomes.

Dr. Cheung Ching-lung, Associate Professor, Department of Pharmacology and Pharmacy, HKUMed, commented, "Due to the observational nature of the studies, further dedicated clinical trials and pooled analyses of studies from different populations and subgroups should be conducted so to give a bias-free conclusion. All in all, SGLT2i could potentially be a better alternative drug to DPP4i and be used as an extra-glycemic drug."

More information: Philip C. M. Au et al, Association of Sodium-Glucose Cotransporter 2 Inhibitor vs Dipeptidyl Peptidase-4 Inhibitor Use With Risk of Incident Obstructive Airway Disease and Exacerbation Events Among Patients With Type 2 Diabetes in Hong Kong, JAMA Network Open (2023). DOI: 10.1001/jamanetworkopen.2022.51177

Philip C M Au et al, Association Between SGLT2 Inhibitors vs DPP-4 Inhibitors and Risk of Pneumonia Among Patients With Type 2 Diabetes, The Journal of Clinical Endocrinology & Metabolism (2021). DOI: 10.1210/clinem/dgab818

Philip C M Au et al, Association Between SGLT2 Inhibitors vs DPP4 Inhibitors and Renal Outcomes Among Patients With Type 2 Diabetes, The Journal of Clinical Endocrinology & Metabolism (2022). DOI: 10.1210/clinem/dgac164

Citation: Research shows the newest glucose-lowering drug could reduce the risks of renal and respiratory diseases (2023, March 3) retrieved 19 July 2024 from https://medicalxpress.com/news/2023-03-glucose-lowering-drug-renal-respiratory-diseases.html
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