Introduction: An optimal combination of antidiabetic drugs for diabetic patients with ischemic stroke is not well-established. The objective of this randomized trial is to evaluate whether combination of pioglitazone and a sodium glucose cotransporter 2 (SGLT-2) inhibitor, compared with a dipeptidyl peptidase-4 (DPP-4) inhibitor, reduces recurrent stroke in diabetic patients with recent ischemic stroke. Methods and analysis: The trial is a randomized, parallel-group study conducted at 7 hospitals in Taiwan. Inclusion criteria are adult patients with a history of ischemic stroke within 3 months, diabetes mellitus with Hba1C \> 7%, taking metformin currently or previously, and estimated glomerular filtration rate ≥ 45 mL/min/1.73 m2. Eligible patients who sign the informed consent forms will be randomly assigned in a 1:1 ratio to receive either combination of pioglitazone and an SGLT2 inhibitor (empagliflozin or dapagliflozin or canagliflozin) vs. a DPP4 inhibitor. Primary outcome is change in HbA1C between 6 months and baseline in active vs comparator groups. Additional biomarker outcomes are change in hs-CRP insulin resistance, B type natriuretic peptide, and urine albumin creatinine ratio between 6 months and baseline. Ethics and dissemination Study protocol was approved by the Institutional Review Board of Chang Gung Memorial Hospital, Chiayi Branch, Taiwan (201702353A3, 201802340A3 and 201902176A3). All participants will be required to sign and date an informed consent form. Study findings will be disseminated via a peer-reviewed journal.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
200
Patients assigned to active group will stop their prior oral antidiabetic drugs and receive combination of metformin, pioglitazone, and an SGLT2 inhibitor (empagliflozin or dapagliflozin or canagliflozin) and dose will be adjusted by their physicians.
Chang Gung Memorial Hospital, Chiayi Branch
Chiayi City, Taiwan
RECRUITINGHbA1C
blood test to evaluate glycemic control
Time frame: 6 months from baseline in active vs control arms
UACR
to evaluate microalbuminuria
Time frame: 6 months from randomization in active vs control arms
hs-CRP
to evaluate hs-CRP in active vs control arms
Time frame: 6 months from randomization
NT-proBNP
to evaluate NT-proBNP in active vs control arms
Time frame: 6 months from randomization
insulin resistance
Insulin resistance will be evaluated by Homeostatic Model Assessment for Insulin Resistance (HOMA-IR)
Time frame: 6 months from randomization
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