SELECT Trial: Semaglutide and Cardiovascular Risk, Explained
What the SELECT trial showed about semaglutide and heart outcomes in people with obesity but without diabetes, in plain language.
Does semaglutide reduce heart-attack and stroke risk?
In the SELECT trial (New England Journal of Medicine, 2023), semaglutide 2.4 mg reduced the risk of major adverse cardiovascular events — cardiovascular death, heart attack, or stroke — by about 20% in adults with established cardiovascular disease and obesity but without diabetes. This was a landmark finding beyond weight loss alone.
Disclaimer: American Telehealth Review is an editorial resource and does not provide medical advice, diagnosis, or treatment. Compounded medications are not FDA-approved finished drug products and should only be prescribed when clinically appropriate by a licensed healthcare provider. Brand-name medications such as Ozempic, Wegovy, Mounjaro, and Zepbound are FDA-approved under their own applications. Compounded semaglutide and compounded tirzepatide are not FDA-approved finished drug products.
What SELECT measured
SELECT enrolled adults with prior cardiovascular disease and overweight/obesity, without diabetes, and followed cardiovascular outcomes over several years. The roughly 20% relative risk reduction supported a cardiovascular benefit independent of glucose lowering.
What it means and doesn't mean
SELECT studied FDA-approved semaglutide under medical supervision. It does not establish the same outcomes for compounded products, which are not FDA-approved. Any cardiovascular use should be guided by a clinician.
| Outcome | Finding (SELECT, 2023) |
|---|---|
| Primary MACE endpoint | ~20% relative risk reduction vs placebo |
| Population | Established CVD + overweight/obesity, no diabetes |
| Medication studied | FDA-approved semaglutide 2.4 mg (not a compounded product) |
Source: Lincoff AM et al., SELECT, New England Journal of Medicine, 2023.
Frequently asked questions
Did SELECT show semaglutide helps the heart?
Yes; it reduced major cardiovascular events by about 20% in adults with cardiovascular disease and obesity without diabetes.
Does this apply to compounded semaglutide?
SELECT used FDA-approved semaglutide; compounded products were not studied and are not FDA-approved.
Sources
- Lincoff AM et al. Semaglutide and cardiovascular outcomes in obesity without diabetes (SELECT). N Engl J Med. 2023.
- Wilding JPH et al. Once-weekly semaglutide in adults with overweight or obesity (STEP 1). N Engl J Med. 2021.
- U.S. FDA — Medications containing semaglutide and tirzepatide; Compounding and the FDA (fda.gov).