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c/retatrutide·posted 5 days ago by u/source_or_silence

the glucagon arm is why the appetite effect feels different

Question Cold Box ×1 Slow Clap ×3

the glucagon arm is why the appetite effect feels different — a position I have arrived at slowly and would like tested.

Watched heart rate on a wearable across twelve weeks because the threads said to. It moved a little and I have no idea whether that means anything.

The thing that surprised me was how much of the discussion here is inference rather than measurement.

Kept a log specifically because there is so little published. It is one person and it is not data.

Ask me anything specific. Anything general I will probably get wrong.

1,143 up / 178 down87% upvoted43 commentsid 1lgwl724 Jul 2026

43 comments

13 in this archive, depth 5

best — the order this archive was captured in

u/reta_and_regretMOD173 points·5 days ago

Left up. It reads the phase 2 paper carefully and it is honest about the intervals.

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u/andres_sorensen118 points·4 days ago

Which phase 2 arm are you quoting, and at what week?

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u/soren_nkemelu39 points·4 days ago

heart rate is the thing people report watching

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u/halima_mbeki104 points·4 days ago

Increases in heart rate have been reported across this receptor class. The magnitude and clinical significance are exactly what phase 3 is powered to establish.

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u/customs_seizure_sid29 points·4 days ago

Yes — the comparison threads are apples to oranges and they generate more heat than anything else here.

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u/jarno_cabrera86 points·4 days ago

What is the source for that figure — the published paper or a summary of it?

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u/bastian_ekstrom36 points·3 days ago

It is a triple agonist at the GLP-1, GIP and glucagon receptors. The glucagon arm is the genuinely novel component and it is the one with the least human outcome data behind it.

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u/source_or_silenceOP20 points·3 days ago

Read the phase 2 paper twice before ordering anything. Recommend that to anyone in this board: the error bars are the interesting part.

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u/yannick_salinas9 points·3 days ago

comparing reta phase 2 to sema phase 3 is comparing different things

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u/marit_laurent0 points·4 days ago

The phase 2 readout ran to 48 weeks in a few hundred participants with a slow escalation. Both the size and the duration matter when people quote the headline number.

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u/mateusz_mensah1 point·3 days ago

Has anyone posted an independent test on this compound recently?

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u/trialwatch_theotrial nerd1 point·4 days ago

Phase 2 estimates effect and finds a dose range. Phase 3 estimates it precisely in a bigger population and catches what phase 2 was too small to see. Treating them as the same tier of evidence is the recurring error here.

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u/source_or_silenceOP1 point·3 days ago

Correction: TRIUMPH is the phase 3 programme. The number you are quoting is from the phase 2 readout, which is a different trial.

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About c/retatrutide

Retatrutide: GIP/GLP-1/glucagon triple agonism, the TRIUMPH programme, and the fact that most people discussing it are handling research-grade material with no human-use approval anywhere. Dose-response, heart-rate signal, and the unusually steep phase-2 weight curves get argued about here weekly.

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