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c/semaglutide·posted 1 year ago by u/two_mil_or_one

[Question] is 98.7% actually fine or am I being sold a rounding error

Question Slow Clap ×9 The Quiet One ×2 Well Actually ×1

Posting this because the title is the whole finding — is 98.7% actually fine or am I being sold a rounding error — and a number without its method is a rumour.

98.7% — those are the numbers, and they are the ones I am willing to defend.

The weekly interval comes out of the half-life — roughly a week — so you are on a smooth curve rather than a series of spikes. That is also why moving your day slightly does very little.

Steady state after a dose change takes four to five half-lives, so the fair judgement point on a new step is about a month, not four days.

Sceptical readings welcome. The confident ones are the ones I distrust.

7,695 up / 475 down94% upvoted49 commentsid 1bt8x17 Dec 2024

49 comments

18 in this archive, depth 4

best — the order this archive was captured in

u/arne_amankwah1.1k points·1 year ago

Weight change and appetite change are different endpoints on different timescales. Conflating them is where most of the confusion on this board starts.

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u/vikram_mbeki338 points·1 year ago

stalling at 1.7mg is information, not a verdict

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u/wanjiru_varga382 points·1 year ago

My stall was eleven weeks. Eleven. Then it moved again without me changing anything at all.

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u/endpoint_creep110 points·1 year ago

Correct, and worth adding: the trial average is an average. Half the people in it did worse than 15% and were still on the drug.

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u/alcohol_aversion121 points·1 year ago

sema is weekly for a reason, the half-life does the smoothing

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u/rasmus_kimani1k points·1 year ago

Delayed gastric emptying is most pronounced early and attenuates with continued dosing, which is why the constipation usually fades at a stable dose.

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u/teodor_duarte571 points·1 year ago

The escalation schedule in the trials existed to keep people on the drug. It is a tolerability ramp, and it is why the label reads the way it does.

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u/two_mil_or_oneOP262 points·1 year ago

Correcting myself from earlier in the thread: I said week 6 and it was week 10. Same shape, wrong number.

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u/two_mil_or_oneOP420 points·1 year ago

Sat at 1.7mg for four months because it was doing the job. Everyone told me to go up. The one time I did, the only thing that changed was the injection-site soreness.

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u/zeynep_weiss376 points·1 year ago

The appetite thing was the surprise. I expected to feel full. What I got was simply not thinking about food between meals.

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u/throwaway_titration477 points·1 year ago

reflux made the first fortnight rough at each step up, then flattened out. Predictable enough that I started planning around it.

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u/two_mil_or_oneOP556 points·1 year ago

Minor fix — the half-life is about a week, not about a day. The rest of your point stands.

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u/helga_vermeulen237 points·1 year ago

dose day drift of a day either way is fine, the curve barely notices

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u/ismael_chukwu195 points·1 year ago

dose day drift of a day either way is fine, the curve barely notices

Adding one thing to this: the appetite effect and the scale run on separate clocks, so both halves can be true at once.

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u/ffmi_watcher282 points·1 year ago·edited

How long was the stall before you decided it was a stall?

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u/sorted_by_new278 points·1 year ago

STEP-1 ran 68 weeks and landed just under 15% mean body weight change on 2.4mg. It is an average of a wide distribution, not a target you have missed.

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u/teodor_duarte68 points·1 year ago

Research-use-only material is not approved for human use, so anything in this thread about how a compounded or research vial "should" behave is a chemistry discussion, not a dosing one.

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[removed]113 points·1 year ago

[removed by moderator]

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