About this trial
A human subjects research study, the primary purpose of which is to assess the EFFECTS OF SEMAGLUTIDE ON INTRACRANIAL BLOOD FLOW AND BLOOD-BRAIN BARRIER PERMEABILITY IN TYPE-2 DIABETES (T2D) through testing of the intervention on patients in a clinical setting. The study will randomize subjects with diabetes to either semaglutide or matching placebo. Magnetic resonance images will be primary endpoint measured at baseline and at one year to assess effect of this FDA approved medication.
Given the available evidence supporting the neuroprotective effect of this drug class and stroke reduction with semaglutide, and the investigators preliminary data showing that T2D had significantly reduced total number of distal arterial branches in the brain than non-T2D, the investigators expect treatment with semaglutide will be associated with improved intracranial blood flow condition.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Men and women 40-65 years of age
Subjects with type-2 diabetes >= 3 years and HbA1C 7%-10% with blood sugar control medications including insulin, metformin, sulfonylureas, or SGLT2 inhibitors
Medically stable
Has not received any investigational drug in the past 6 months
Disqualifiers
Contraindication to MRI or contrast agent
eGFR<45 mL/min/1.73m2 (eGFR is a measurement of kidney function)
Currently treated with glucagon-like peptide-1 receptor antagonist (same drug class as study intervention)
Unable to perform home-glucose monitoring
Trial design
Parallel
Treatments tested in this trial
Semaglutide Auto-Injector
DrugSubjects have an equal chance of receiving semaglutide or placebo. Which treatment subjects receive is decided at random by a computer (purely by chance, like the tossing of a coin). Neither subjects, Study Site personnel nor image reviewers will know which treatment subjects are assigned to. The study drug must be taken weekly. The subject's other medications may be changed by the study's un-blinded Endocrinologist. At baseline subject will receive and take home 0.25mg injector for use 3 more times. They will be given a 0.5mg injector and a 1mg injector for use beginning 5 and 9 weeks from baseline respectively. The target dose for subjects is 1mg per week up to the 52 week treatment duration.
Placebo
Other interventionPlacebo
Treatment groups
Trial outcomes
Primary outcomes
Intracranial blood flow (IBF)
measured as total length and number of distal vessels
bloodbrain barrier Ktrans
measured by dynamic contrast-enhanced MRI
Secondary outcomes
Inflammatory markers
hsCRP, interleukin-6 and tumor necrosis factor -a
Sponsors and contacts
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University of Washington
Lead sponsor
Novo Nordisk A/S
Collaborator