This one has a reasonably settled answer, so here it is. Steady state is the thing most people miss. The terminal half-life is about a week, so every dose step takes four to five weeks to fully express itself. Judging a step at day ten is judging the ascent, not the plateau, and it is the single commonest reason people escalate before they needed to.
Prescribed on cardiovascular grounds rather than for weight, and almost everything written for patients assumes the opposite.
What would genuinely help is knowing how much of the SELECT benefit is plausibly independent of the weight loss, and whether that distinction changes anything practical.
I have searched first, so if this is covered somewhere point me at it and I will read it.
PharmacoVig_BOS said:Steady state is the thing most people miss.
Agreed, though "tolerable" needs defining. A dose you tolerate by eating almost nothing is not tolerated, it is being paid for somewhere else — usually in lean mass, sometimes in adherence three months later.
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View Resultsricardo_MIA said:Prescribed on cardiovascular grounds rather than for weight, and almost everything written for patients assumes the opposite.
That holds for the injectable. The oral formulation has different absorption behaviour and the dose numbers are not interchangeable, which is worth saying out loud because people quote them as if they were.
From the other side of the consultation, briefly.
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.