Maintenance phase — 18 months at goal weight, labs still improving

Adding the clinical framing, because it changes how the question reads.

Epigenetic implications of GLP-1 therapy and maintenance dosing: emerging evidence suggests that sustained weight loss and metabolic improvement may produce epigenetic changes (DNA methylation, histone modification) that persist beyond drug discontinuation[1].

This is speculative but fascinating: could long-term GLP-1 agonist treatment "reprogram" metabolic gene expression? If so, it would explain why some patients maintain weight loss better than others after discontinuation.

More research needed, but the concept of pharmacologically-induced epigenetic remodeling is intellectually exciting.

BiostatsBrad said:

MarkLI_maint said: ...I stopped maintenance dosing and regained all the weight...

BiostatsBrad said:

...the STEP extension data on maintenance dosing is concerning...

Let me offer a different interpretation of the same data. Yes, 2/3 of weight was regained after discontinuation. But consider:

• This is consistent with EVERY chronic disease medication ever studied
• 1/3 of patients maintained significant weight loss — who are they and why?
• The metabolic improvements partially persisted even with weight regain
• The data supports long-term treatment, not a "course" of therapy

The takeaway isn't "the drug fails when you stop" — it's "chronic diseases require ongoing treatment." We've always known this.

BiostatsBrad said:

MarkLI_maint said: ...I stopped maintenance dosing and regained all the weight...

That reframing is the part I needed. Printing the relevant bit and taking it with me.

Clinical perspective, offered as context rather than as advice.

STEP 5 long-term data on maintenance dosing: the 104-week (2-year) extension showed sustained weight loss of -15.2% with continued semaglutide vs weight regain in the discontinuation group[1].

Key insight: weight loss continued to accrue between weeks 68 and 104 in many patients, suggesting the nadir may not occur until year 2+. The 68-week primary endpoint in most trials may underestimate maximal efficacy.

This supports long-term, open-ended treatment rather than fixed-duration "courses" of therapy.

Moderator note: good thread. Keeping it here rather than moving it, because the question is general enough to be useful. Carry on.