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c/retatrutide·posted 6 months ago by u/yara_lindholm

dose escalation — my 2-week log, condensed into one table

Question Long Haul ×7 Cold Box ×2

Posting this as a discussion rather than a claim: dose escalation — my 2-week log, condensed into one table.

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.

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.

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.

If somebody has the same thing measured a different way, post it next to mine and we will see whether they agree.

2,722 up / 1,039 down72% upvoted58 commentsid v3062b6 Jan 2026

58 comments

22 in this archive, depth 5

best — the order this archive was captured in

u/isabela_nilsen276 points·6 months ago

Nothing containing this compound is approved anywhere. Research-use-only material is not approved for human use, and that is a statement of fact rather than a disclaimer.

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u/yara_lindholmOP200 points·6 months ago

Went up slowly, deliberately, because everything on this board says the escalation is where trouble lives. Uneventful so far and I am not going to pretend that is a finding.

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u/source_or_silence160 points·6 months ago

dose escalation in the trials was slow for a reason

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u/yusuf_ramos68 points·6 months ago

The fatigue profile felt different rather than worse. Hard to describe and impossible to quantify, so take it as an impression.

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u/zeynep_mbeki112 points·6 months ago·edited

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

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u/trialwatch_theotrial nerd93 points·6 months ago

the energy-expenditure story is mechanistically interesting and clinically unproven

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u/injection_site_iris36 points·6 months 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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u/emil_agyeman135 points·6 months ago

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

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u/lina_bruun31 points·6 months ago

Independent purity testing on this compound is thin compared with the older molecules, simply because fewer members have paid for it. Fewer results means wider uncertainty, not a verdict.

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u/titration_marshalmod · c/semaglutide125 points·6 months ago

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

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u/renzo_yildiz95 points·6 months ago

Not convinced. You are attributing a week of sulphur burps to the glucagon arm when the escalation rate alone would explain it.

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[removed]90 points·6 months ago

[removed by moderator]

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u/divya_bakken65 points·6 months ago

This. The phase 2 result was genuinely large and it was also 48 weeks in a few hundred people.

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u/rohan_cardoso47 points·6 months ago

Sent a vial to Medutest out of curiosity. Result was 97.2% against a claimed 97.0%, which is the first independent number I had seen for this compound anywhere.

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u/yara_lindholmOP34 points·6 months ago

heart rate is the thing people report watching

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u/signe_villalobos27 points·6 months 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/rosa_almeida8 points·6 months 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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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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