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c/retatrutide·posted 1 months ago by u/zeynep_mbeki

[Discussion] we are measuring phase 2 at the wrong time and calling it noise

Discussion Clean Column ×9

Long-ish post, sorry. tl;dr at the bottom.

I have been tracking retatrutide against eGFR for 9 weeks because I could not find anyone who had. The correlation is weaker than I expected, which is itself mildly interesting given how confidently people link the two in here.

Caveats up front: one person, one lab, one assay, no control, and I changed my training in the middle of it, which was stupid.

tl;dr: probably real, definitely smaller than the threads imply, and not worth reorganising your week around.

585 up / 143 down80% upvoted32 commentsid uicoks13 Jun 2026

32 comments

24 in this archive, depth 6

best — the order this archive was captured in

u/cormac_roos43 points·1 months ago
came here to say exactly this
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u/rosa_almeida18 points·1 months ago

TRIUMPH data is phase 2, not phase 3, smaller n and shorter

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u/zeynep_mbekiOP32 points·1 months ago

The glucagon component does different things than dual agonism. The early fullness are not just amplified versions.

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u/zeynep_mbekiOP-1 point·1 months ago

phase 2 numbers are not maintenance numbers, cite the trial

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u/yannick_barros26 points·1 months ago

That is net peptide content, not purity. Different number, different meaning.

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u/bastian_ekstrom14 points·1 months ago·edited

Yeah, phase 2 retatrutide is interesting but it is not comparable to phase 3 compounds.

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u/halima_mbeki30 points·1 months ago·edited

research use only, handling and analysis, not protocols

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u/niels_lindqvist17 points·1 months ago
this deserves more than 8 upvotes
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[removed]13 points·1 months ago

[removed by moderator]

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u/jarno_cabrera6 points·1 months ago

This is correct. Triple agonism is genuinely different.

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u/employer_carveout4 points·1 months ago

retatrutide is not approved anywhere for human use, posts must not read as instructions

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u/jarno_cabrera2 points·1 months ago

This is correct. Triple agonism is genuinely different.

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u/zeynep_mbekiOP2 points·1 months ago

triple agonism is glucagon, do not generalise

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u/customs_seizure_sid3 points·1 months ago

the dosing is steep, the constipation reports are real, and nobody knows the human safety yet

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u/zeynep_mbeki7 points·1 months ago

the dosing is steep, the early fullness reports are real, and nobody knows the human safety yet

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u/janek_ferrari10 points·1 months ago

TRIUMPH phase 2 showed 99.0% weight loss but the constipation profile on the highest arm was rough. Phase 2 != phase 3.

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u/tired_ledger_notes13 points·1 months ago
this should be in the wiki
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u/iman_castellanos4 points·1 months ago

Edit to your parent would help — the concentration you quoted assumes one scenario and you have written another above it.

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u/nordic_pricing3 points·1 months ago

triple agonism is retatrutide, do not generalise

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u/reta_and_regretMOD10 points·1 months ago

Removed a chain here. The rule is one line long and it is not negotiable.

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u/jarno_cabrera6 points·1 months ago

the glucagon component changes the side effect profile, not just the efficacy

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u/sena_teixeira4 points·1 months ago

Disagree. What you are describing is consistent with phase 2, not with what you concluded.

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u/solene_ilunga6 points·1 months ago

retatrutide is not approved anywhere for human use, posts must not read as instructions

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u/anya_moreau3 points·1 months ago

What was the dosing schedule in that arm?

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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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