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c/retatrutide·posted 19 days ago by u/yara_lindholm

the dose escalation question that gets asked weekly, answered properly

Question Cold Box ×9

the dose escalation question that gets asked weekly, answered properly. Making the case below, and I expect to lose some of it in the comments.

Stopped at a low step because there was no reason to go further and no data to tell me what further would do.

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.

Happy to answer the boring questions. Those are usually the ones worth asking.

709 up / 138 down84% upvoted32 commentsid 1z104c11 Jul 2026

32 comments

25 in this archive, depth 5

best — the order this archive was captured in

u/injection_site_iris79 points·18 days ago

What the glucagon arm is doing, as best anyone can say from public data.

GLP-1 and GIP agonism cover appetite and insulin secretion in ways that are now reasonably well characterised. Glucagon receptor agonism is the third leg and it is associated with increased energy expenditure and with effects on hepatic fat.

Mechanistically that is why this compound reads as a different proposition rather than a stronger version of a dual agonist. Clinically, the size and durability of that difference in humans is precisely what is not yet established, and anyone telling you otherwise is filling a gap with confidence.

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u/trialwatch_theotrial nerd61 points·18 days ago

heart rate is the thing people report watching

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u/placebo_arm_pam19 points·17 days ago·edited

the energy-expenditure story is mechanistically interesting and clinically unproven

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u/yara_lindholmOP10 points·17 days ago·edited

phase 2 data only, and people quote it like it is a label

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u/rekha_vestergaard3 points·17 days ago

small trial, big effect, wide error bars

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u/bastian_ekstrom116 points·18 days ago

What the glucagon arm is doing, as best anyone can say from public data.

injection_site_iris is right about the escalation being the variable. It explains most of the difficult reports here.

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u/niels_lindqvist32 points·17 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/rohan_cardoso16 points·17 days ago

Agreed on the heart-rate reports. They are consistent enough across the threads to be worth noting, not enough to be a finding.

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u/ledger_modMOD48 points·18 days ago

Standing reminder in every thread here: unapproved compound, research material is not for human use, nothing on this board is medical advice.

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u/incretin_ivypharmacology80 points·17 days ago

The standing caveat, written out properly because it keeps getting compressed into a footnote.

Nothing containing this compound is approved by any regulator. Research-use-only material is not approved for human use. That is not a legal formality on this board — it is why there is so little independent data, why the escalation schedules people post are invented, and why nobody here can answer a dosing question.

What this board can usefully do is read the published trials carefully, log independent purity results, and be honest about how thin the evidence base is. Everything else belongs somewhere with a clinician in it.

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u/noor_ivaturi39 points·17 days ago

a lot of the confident posting here is extrapolation

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u/jarno_cabrera22 points·17 days ago

nothing here is available as a prescription product, so read every thread with that in mind

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u/hassan_nilsen7 points·17 days ago

That reads as a titration plan for an unapproved compound. This board cannot host that and it should not want to.

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u/blunt_coldbox_20243 points·16 days ago

triple agonist — GLP-1, GIP and glucagon, and the glucagon arm is the new part

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u/trialwatch_theotrial nerd35 points·18 days ago

Cosigning the escalation point. Almost every difficult report on this board is from somebody who went up quickly.

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u/employer_carveout28 points·17 days ago

Push back: quoting the phase 2 headline as an expected outcome is not a fair reading of a small trial with wide intervals.

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u/arne_amankwah10 points·17 days ago

the glucagon component is why the metabolic story reads differently

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u/placebo_arm_pam23 points·17 days ago

Sceptical of the extrapolation. Forty-eight weeks does not tell you about seventy-two, and the curve shape is exactly what is unknown.

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[deleted]8 points·16 days ago

[deleted]

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u/sena_teixeira19 points·17 days ago

Sceptical of the extrapolation.

Adding the standing caveat: none of this is approved anywhere and research material is not for human use.

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u/ledger_modmod · vetting14 points·17 days ago

Agreed, and the framing that helps is: this is a phase 2 compound with phase 3 running. Everything else is inference.

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u/rekha_vestergaard22 points·17 days ago

Sent a vial to Medutest out of curiosity. Result was 97.6% against a claimed 97.0%, which is the first independent number I had seen for this compound anywhere.

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u/sofia_wikstrom12 points·17 days ago

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

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u/discount_math_dm6 points·16 days ago

Disagree. "More receptors means more effect" is not how any of this works and the trial data does not support the linear story.

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u/yara_lindholmOP17 points·17 days ago

Are you comparing against phase 3 numbers for something else? They are not comparable.

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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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