GLP1-RAs Effects on Inflammatory and Endothelial Biomarkers in T2DM

Condition(s) studied

Investigational drug(s) / intervention(s)

semaglutide: The starting dose is 0.25 mg semaglutide once weekly. After 4 weeks the dose should be increased to 0.5 mg once weekly. After at least 4 weeks with a dose of 0.5 mg once weekly, the dose can be increased to 1 mg once weekly to further improve glycaemic control.

Standard Treatment (Guideline-Based): Patients will receive standard therapy for T2DM according to standard clinical practice (Guideline-Based). This might include Biguanides, Insulins, Sulfonylureas, SGLT2 inhibitors, Thiazolidinediones, Alpha-glucosidase inhibitors, or DPP-4 inhibitors.

Study summary

Type II diabetes mellitus (T2DM) is a chronic disease associated with a very high risk of developing cardiovascular (CV) events, especially because of its long-term effects. Glucagon-like-peptide-1 receptor agonists (GLP1-RAs) are recommended in subjects suffering from T2DM with a history or at risk for CV disease; however there is a lack of evidence on local actions of GLP1-RAs on inflammation and endothelial function.

The STABLE-GLP1 study aims to evaluate, in patients with T2DM without atherosclerotic cardiovascular disease (ASCVD) or severe target-organ damage (TOD), the possible beneficial effect of semaglutide, a GLP1-AR, on clinical prognosis, inflammatory and endothelial biomarkers.

The STABLE-GLP1 trial is a phase IV interventional, national, multicenter, randomized, pragmatic study, aiming at enrolling 80 patients with T2DM and no ASCVD. Participants will be randomized in 1:1 ratio to receive semaglutide in addition to standard therapy or standard therapy alone, according to body mass index (BMI) category (BMI \<30 vs. ≥30 kg/m²). All patients will perform clinical visit, ECG, echocardiography, blood sample collection for endothelial and inflammatory biomarkers dosage at baseline, at 26 weeks, and after 52 weeks of treatment. Data from CTA, performed according to clinical practice before enrollment, will be recorded and retrospectively evaluated to test secondary outcomes.

Eligibility

Primary outcome measure(s)

• To evaluate the effects of semaglutide in addition to standard therapy on inflammatory biomarkers compared with standard therapy alone in T2DM patients without ASCVD or severe TOD but with SCORE2-Diabetes ≥10%. — From enrollment to the end of treatment at 52 weeks
  Regarding this endpoint, the change in inflammatory biomarkers involved in atherogenesis at follow-up compared to baseline will be evaluated in both treatment arms. Inflammatory biomarkers will be measured in serum using an appropriately validated immunoassay (ELISA - enzyme-linked immunosorbent assay). Inflammatory biomarkers include C-reactive protein (CRP), interleukins (IL-1β, IL-6, IL-10), colony-stimulating factors (M-CSF), tumor necrosis factors (TNF-α), interferons (IFN-γ), transforming growth factors (TGF-β), and adiponectin, all measured in picograms per milliliter (pg/mL).
• To evaluate the effects of semaglutide in addition to standard therapy on biomarkers of endothelial dysfunction compared with standard therapy alone in T2DM patients without ASCVD or severe TOD but with SCORE2-Diabetes ≥10%. — From enrollment to the end of treatment at 52 weeks
  Regarding this endpoint, the change in biomarkers involved in endothelial dysfunction at follow-up compared to baseline will be evaluated in both treatment arms. Biomarkers of endothelial dysfunction will be measured in serum using an appropriately validated immunoassay (ELISA - enzyme-linked immunosorbent assay), and include soluble endothelin-1 (ET-1), intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1), E-selectin, and P-selectin, all measured in nanograms per milliliter (ng/mL).

Trial sites (2)

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