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ForumsCompounding & FormulationCompounded tirzepatide formulation challenges — looking for input Page 3

Compounded tirzepatide formulation challenges — looking for input

Dr.EndoIndy Tue, Jul 9, 2024 at 8:50 AM 43 replies 2,583 viewsPage 3 of 9
amy_econ_NJ
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Jul 9, 2024 at 6:13 PM#11
NurseAsh_DET said:
The GIP arm is doing real work rather than padding the label.

Genuinely useful, thank you. I had the facts and not the framework.

29 4Dr.SportsMedIN, amy_econ_NJ, bbq_ray_KC and 26 others
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Dr.SleepRoch
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Jul 9, 2024 at 9:51 PM#12

From the other side of the consultation, briefly.

Dose-response modeling for tirzepatide: Emax model fitting to the STEP/SURMOUNT dose-finding data shows:

Semaglutide: ED50 ≈ 0.6mg, Emax ≈ -18%, Hill coefficient ≈ 1.3
Tirzepatide: ED50 ≈ 6mg, Emax ≈ -25%, Hill coefficient ≈ 1.5

Clinical implication: most patients achieve >80% of maximal response by the mid-range dose (1.7mg sema, 10mg tirz). Going to the maximum dose provides diminishing returns — possibly not worth the additional side effect burden for some patients. Individualize dosing based on response vs tolerability.

Last edited: Jul 10, 2024 at 1:51 AM
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Dr.ReproEndo
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Jul 10, 2024 at 1:29 AM#13
sophie_paris said:
Resolution therefore closed the doors unevenly, and the asymmetry follows from the bulks lists.

I read this differently from sophie_paris, on substance rather than tone. A research-chemical supplier selling lyophilised powder labelled research use only is not compounding and is not claiming to. It is a different legal universe with no pharmacy oversight, no patient relationship and no content guarantee, and conflating the two in these threads helps nobody.

Last edited: Jul 10, 2024 at 2:29 AM
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kate.chem
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Jul 10, 2024 at 5:07 AM#14

The figures, for anyone assembling their own picture. Worth stating the units and the reference range whenever you post a number here. A large fraction of the apparent disagreement in these threads is two people using different units and both being right.

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Admin
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Jul 10, 2024 at 8:45 AM#15

Moderator note: reminder that nothing in this thread is medical advice, and that clinical claims need a source. Tagging this one for the weekly digest.

25 0PeptideSynthNJ, Dr.KarenChen, Dr.NateNeph and 22 others
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