Dr.KarenChen said:Positive "side effect" of cardiovascular risk: my blood pressure dropped so much that I'm now off lisinopril entirely!
NNT calculation for cardiovascular risk clinical endpoints: NNT = 1/ARR (absolute risk reduction).
From SELECT trial: MACE at 39 months — 6.5% semaglutide vs 8.0% placebo. ARR = 1.5%. NNT = 67 over 3.3 years.
Compare to established therapies:
| Intervention | NNT | Timeframe |
|---|---|---|
| Semaglutide (MACE) | 67 | 3.3 years |
| Statins primary prevention (MI) | ~100 | 5 years |
| Aspirin secondary prevention | ~77 | 2 years |
These NNTs are clinically meaningful and comparable to accepted cardiovascular interventions.
PedsEndoPhilly said:InsuranceTom said: ...cardiovascular risk is just another fad...
Thank you for spelling out the reasoning rather than just the conclusion. I will report back once I have actually tried it.
Dr.KarenChen said:Positive "side effect" of cardiovascular risk: my blood pressure dropped so much that I'm now off lisinopril entirely!
Anti-inflammatory mechanisms of GLP-1 agonists and cardiovascular risk: beyond weight loss, GLP-1R activation directly suppresses NF-κB signaling, reduces NLRP3 inflammasome activation, and decreases monocyte/macrophage adhesion to endothelium[1].
Clinical correlates: hsCRP reduction of 30-60% (consistently seen across trials), reduced carotid intima-media thickness, and decreased coronary plaque inflammation on PET imaging.
These anti-inflammatory effects likely contribute to the cardiovascular benefit seen in SELECT — and may explain benefits beyond what weight loss alone would predict.
[1] Hogan AE, et al. Diabetologia. 2014;57(4):781-784.
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View Resultspat_auckland said:Prescribed on cardiovascular grounds rather than for weight, and almost everything written for patients assumes the opposite.
Mendelian randomization evidence supporting GLP-1 pathway modulation for cardiovascular risk: genetic variants in the GLP1R gene region associated with lower BMI also show associations with reduced cardiovascular risk, confirming a causal pathway[1].
This "natural experiment" (people born with genetically higher GLP-1 signaling being leaner and healthier) provides orthogonal evidence supporting the pharmacological approach. When genetic epidemiology, clinical trials, and mechanistic studies all converge, confidence in the therapeutic approach is high.
[1] Zheng SL, et al. Lancet Diabetes Endocrinol. 2023;11(12):869-879.