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c/retatrutide·posted 8 months ago by u/placebo_arm_pam

[Discussion] phase 2 is doing more work than we give it credit for

Discussion

phase 2 is doing more work than we give it credit for. Change my mind, genuinely — I have no stake in being right about this.

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.

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.

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

Sceptical readings welcome. The confident ones are the ones I distrust.

270 up / 89 down75% upvoted18 commentsid jyf9g22 Nov 2025

18 comments

16 in this archive, depth 3

best — the order this archive was captured in

u/two_mil_or_one0 points·8 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/baseline_drifteranalytical1 point·8 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/emil_agyeman1 point·8 months ago

a lot of the confident posting here is extrapolation

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u/placebo_arm_pamOP1 point·8 months ago

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

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u/lurker_for_years22 points·8 months ago

research-use-only material is not approved for human use, full stop

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[removed]16 points·8 months ago

[removed by moderator]

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u/placebo_arm_pamOP12 points·8 months ago

not approved anywhere, which is the single most important fact in this board

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u/hugo_pires30 points·8 months ago

Glucagon receptor agonism is associated with increased energy expenditure and with hepatic effects. That is a mechanistic story with strong preclinical support and limited phase 2 human data.

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u/halima_mbeki12 points·8 months 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/nabila_bakken17 points·8 months ago·edited

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/incretin_ivyMOD9 points·8 months ago·edited

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

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u/marta_vanhecke10 points·8 months ago

small trial, big effect, wide error bars

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u/two_mil_or_one7 points·8 months ago

the TRIUMPH programme is still running, so anything definitive is premature

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u/placebo_arm_pamOP9 points·8 months ago

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

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u/helga_vermeulen13 points·8 months ago·edited

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

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u/mateusz_mensah7 points·8 months ago

the energy-expenditure story is mechanistically interesting and clinically unproven

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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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