SGLT2 Inhibitors as Add-On Therapy to Metformin for People with Type 2 Diabetes: A Review of Placebo-Controlled Trials in Asian versus Non-Asian Patients
André J Scheen1,2 1Diabetes, Nutrition and Metabolic Disorders, Department of Medicine, CHU Liège, Liège University, Liège, Belgium; 2Clinical Pharmacology Unit, CHU Liège, Center for Interdisciplinary Research on Medicines (CIRM), Liè...
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Dove Medical Press
2020
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oai:doaj.org-article:22b69cc7d942447788c0e405d101010e2021-12-02T03:27:04ZSGLT2 Inhibitors as Add-On Therapy to Metformin for People with Type 2 Diabetes: A Review of Placebo-Controlled Trials in Asian versus Non-Asian Patients1178-7007https://doaj.org/article/22b69cc7d942447788c0e405d101010e2020-08-01T00:00:00Zhttps://www.dovepress.com/sglt2-inhibitors-as-add-on-therapy-to-metformin-for-people-with-type-2-peer-reviewed-article-DMSOhttps://doaj.org/toc/1178-7007André J Scheen1,2 1Diabetes, Nutrition and Metabolic Disorders, Department of Medicine, CHU Liège, Liège University, Liège, Belgium; 2Clinical Pharmacology Unit, CHU Liège, Center for Interdisciplinary Research on Medicines (CIRM), Liège University, Liège, BelgiumCorrespondence: André J Scheen Email andre.scheen@chuliege.beAbstract: Metformin remains the first pharmacological choice for treating hyperglycemia in type 2 diabetes (T2DM) in most international guidelines. Sodium-glucose cotransporter type 2 inhibitors (SGLT2is) are increasingly used as add-on therapy. T2DM pathophysiology is different in Asian and non-Asian (mainly Caucasian) patients. The aim of this systematic review is to compare the efficacy of SGLT2is vs placebo added to metformin in randomized controlled trials (RCTs: range 12– 52 weeks) in Asian versus non-Asian patients with T2DM. The primary endpoint is the reduction in glycated hemoglobin (HbA1c) from baseline and key secondary endpoints are reductions in fasting plasma glucose (FPG), body weight (BW) and systolic blood pressure (SBP). Systematic literature search collected 7 RCTs (3 with 2 doses) in Asian patients (10 analyses, n=1164, iSGLT2: canagliflozin, dapagliflozin, ertugliflozin, ipragliflozin, tofogliflozin)) and 10 RCTs (6 with two doses) in non-Asian patients (16 analyses, n=2482, iSGLT2: canagliflozin, dapagliflozin, empagliflozin, ertugliflozin, ipragliflozin). Baseline values of HbA1c (7.98± 0.19 vs 7.89± 0.27%), FPG (8.80 ± 0.46 vs 9.11± 0.49 mmol/l) and SBP (128.4± 1.6 vs 130.2± 3.1 mmHg) were not significantly different in Asian vs non-Asian patients, but BW was lower in Asian patients (71.6± 4.8 vs 88.0± 2.5 kg, p< 0.001). The placebo-adjusted weighed mean differences (WMD, 95% CI) were similar in Asian versus non-Asian patients regarding the reductions in HbA1c − 0.60 (− 0.68, − 0.53) % versus − 0.54 (− 0.59, − 0.49) % (p=0.568), FPG − 1.37 (− 1.53, − 1.22) mmol/l vs − 1.37 (− 1.47, − 1.27) mmol/l (p=0.627), BW when expressed in percentage of baseline BW − 2.23 (− 2.55, − 1.90) % vs − 2.16 (− 2.37, − 1.96) % (p=0.324), and SBP − 4.53 (− 5.53, − 3.53) mmHg vs − 4.06 (− 4.83, − 3.29) mmHg) (p=0.223). In conclusion, clinical efficacy of SGLT2i, as an add-on treatment to metformin monotherapy in patients with T2DM, is similar in Asian versus non-Asian patients, despite known ethnic differences in phenotype and pathophysiology of T2DM.Keywords: blood pressure, body weight, combined therapy, glucose control, HbA1c, oral antidiabetic drugScheen AJDove Medical Pressarticleblood pressurebody weightcombined therapyglucose controlhba1coral antidiabetic drugSpecialties of internal medicineRC581-951ENDiabetes, Metabolic Syndrome and Obesity: Targets and Therapy, Vol Volume 13, Pp 2765-2779 (2020) |
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blood pressure body weight combined therapy glucose control hba1c oral antidiabetic drug Specialties of internal medicine RC581-951 |
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blood pressure body weight combined therapy glucose control hba1c oral antidiabetic drug Specialties of internal medicine RC581-951 Scheen AJ SGLT2 Inhibitors as Add-On Therapy to Metformin for People with Type 2 Diabetes: A Review of Placebo-Controlled Trials in Asian versus Non-Asian Patients |
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André J Scheen1,2 1Diabetes, Nutrition and Metabolic Disorders, Department of Medicine, CHU Liège, Liège University, Liège, Belgium; 2Clinical Pharmacology Unit, CHU Liège, Center for Interdisciplinary Research on Medicines (CIRM), Liège University, Liège, BelgiumCorrespondence: André J Scheen Email andre.scheen@chuliege.beAbstract: Metformin remains the first pharmacological choice for treating hyperglycemia in type 2 diabetes (T2DM) in most international guidelines. Sodium-glucose cotransporter type 2 inhibitors (SGLT2is) are increasingly used as add-on therapy. T2DM pathophysiology is different in Asian and non-Asian (mainly Caucasian) patients. The aim of this systematic review is to compare the efficacy of SGLT2is vs placebo added to metformin in randomized controlled trials (RCTs: range 12– 52 weeks) in Asian versus non-Asian patients with T2DM. The primary endpoint is the reduction in glycated hemoglobin (HbA1c) from baseline and key secondary endpoints are reductions in fasting plasma glucose (FPG), body weight (BW) and systolic blood pressure (SBP). Systematic literature search collected 7 RCTs (3 with 2 doses) in Asian patients (10 analyses, n=1164, iSGLT2: canagliflozin, dapagliflozin, ertugliflozin, ipragliflozin, tofogliflozin)) and 10 RCTs (6 with two doses) in non-Asian patients (16 analyses, n=2482, iSGLT2: canagliflozin, dapagliflozin, empagliflozin, ertugliflozin, ipragliflozin). Baseline values of HbA1c (7.98± 0.19 vs 7.89± 0.27%), FPG (8.80 ± 0.46 vs 9.11± 0.49 mmol/l) and SBP (128.4± 1.6 vs 130.2± 3.1 mmHg) were not significantly different in Asian vs non-Asian patients, but BW was lower in Asian patients (71.6± 4.8 vs 88.0± 2.5 kg, p< 0.001). The placebo-adjusted weighed mean differences (WMD, 95% CI) were similar in Asian versus non-Asian patients regarding the reductions in HbA1c − 0.60 (− 0.68, − 0.53) % versus − 0.54 (− 0.59, − 0.49) % (p=0.568), FPG − 1.37 (− 1.53, − 1.22) mmol/l vs − 1.37 (− 1.47, − 1.27) mmol/l (p=0.627), BW when expressed in percentage of baseline BW − 2.23 (− 2.55, − 1.90) % vs − 2.16 (− 2.37, − 1.96) % (p=0.324), and SBP − 4.53 (− 5.53, − 3.53) mmHg vs − 4.06 (− 4.83, − 3.29) mmHg) (p=0.223). In conclusion, clinical efficacy of SGLT2i, as an add-on treatment to metformin monotherapy in patients with T2DM, is similar in Asian versus non-Asian patients, despite known ethnic differences in phenotype and pathophysiology of T2DM.Keywords: blood pressure, body weight, combined therapy, glucose control, HbA1c, oral antidiabetic drug |
format |
article |
author |
Scheen AJ |
author_facet |
Scheen AJ |
author_sort |
Scheen AJ |
title |
SGLT2 Inhibitors as Add-On Therapy to Metformin for People with Type 2 Diabetes: A Review of Placebo-Controlled Trials in Asian versus Non-Asian Patients |
title_short |
SGLT2 Inhibitors as Add-On Therapy to Metformin for People with Type 2 Diabetes: A Review of Placebo-Controlled Trials in Asian versus Non-Asian Patients |
title_full |
SGLT2 Inhibitors as Add-On Therapy to Metformin for People with Type 2 Diabetes: A Review of Placebo-Controlled Trials in Asian versus Non-Asian Patients |
title_fullStr |
SGLT2 Inhibitors as Add-On Therapy to Metformin for People with Type 2 Diabetes: A Review of Placebo-Controlled Trials in Asian versus Non-Asian Patients |
title_full_unstemmed |
SGLT2 Inhibitors as Add-On Therapy to Metformin for People with Type 2 Diabetes: A Review of Placebo-Controlled Trials in Asian versus Non-Asian Patients |
title_sort |
sglt2 inhibitors as add-on therapy to metformin for people with type 2 diabetes: a review of placebo-controlled trials in asian versus non-asian patients |
publisher |
Dove Medical Press |
publishDate |
2020 |
url |
https://doaj.org/article/22b69cc7d942447788c0e405d101010e |
work_keys_str_mv |
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