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ForumsPharmacology & MechanismsBiased agonism at GLP-1R — Gs vs β-arrestin signaling balance Page 3

Biased agonism at GLP-1R — Gs vs β-arrestin signaling balance

PeptideChemSF Mon, Jun 8, 2026 at 1:59 AM 13 replies 263 viewsPage 3 of 3
mel_PDX
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Portland, OR
Jun 8, 2026 at 7:40 AM#11
Dr.NutriCornell said:
Amycretin (AMY/GLP-1 dual agonist) emerging data relevant to the pharmacology: Phase 1 showed -13.1% body weight at only 12 weeks, the fastest…

Bookmarking. The distinction being drawn above is the one nobody else makes. Sending this to two other people who asked me the same thing last week.

50 23Dr.NateNeph, PharmD_Rodriguez, julia.endo and 47 others
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SarahChen_PharmD
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Jun 8, 2026 at 11:19 AM#12

Clinical perspective, offered as context rather than as advice. The mechanism and the magnitude are separate questions. Agreeing that something happens says nothing about whether it happens enough to act on.

Last edited: Jun 8, 2026 at 2:19 PM
1 24NurseKim_ATL
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TrialNerd_Beth
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Jun 8, 2026 at 2:57 PM#13
Dr.ObesityMed said:
Receptor pharmacology relevant to the pharmacology: semaglutide is a GLP-1R agonist with a C-18 fatty acid chain that enables albumin binding (>99%),…

This is where I part company with the consensus forming above. This treats a plausible mechanism as a demonstrated one. Plausible is where you start looking, not where you stop.

2 0TomTeleRx, DoseLogDan
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Dr.PathRoch
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Jun 2024
Rochester, MN
Jun 8, 2026 at 6:36 PM#14

One concrete data point for the thread. Say what you would expect to see if you were wrong, before you look. It is a small discipline and it changes what you notice.

Last edited: Jun 9, 2026 at 12:36 AM
3 1SaraMom3, Dr.MetabolicMD, RetaRick_CA
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mike_mod
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Jun 8, 2026 at 10:14 PM#15

Moderator note: two posts asking for a source have been merged into one. Please search the thread before asking again.

4 2PurityPaulOR, MaxMetOK, MounjBrad and 1 other
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