u/andres_sorensen

Spent 10 weeks confused about this until somebody drew the table for me. 20mg, 2mL, 10mg/mL, 2.5mg is 25 units. That is the whole thing.

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

Right, and it bears repeating that nothing here is approved anywhere and research material is not for human use.

This is the sentence the rest of the board should read first. Phase 2 is not a label.

label the vial with the date as well as the concentration

a U-100 syringe reads 100 units to the millilitre, every time

I would not round that figure. At 5mg/mL a rounding error of two units is a real fraction of the intended amount.

Adding more water does not change how much peptide is in the vial. It changes the concentration, which changes the volume you draw for the same amount. That is the entire relationship.

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.

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

label the vial with the date as well as the concentration

Small fix — a U-100 syringe is 100 units per mL. If yours is marked differently it is not U-100 and the whole calculation changes.

Wrote the date on the vial as well as the concentration after losing track of which one was opened first.

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

Has anyone posted an independent test on this compound recently?

write the concentration on the vial in marker, that is the whole post

15mg into 3mL is 5mg/mL, and 2mg of that is 40 units

Cosigning the round-number approach. Reconstituting to something awkward is how you end up drawing 27.5 units at six in the morning.

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

Same read. The energy-expenditure mechanism is the interesting bit and it is not established in humans at scale.

Aim the stream down the wall of the vial rather than into the cake. Reconstitution is a solubility problem, not a mixing problem, and mechanical shear does nothing helpful.

units are a volume on a U-100 syringe, not a dose

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

Yes. Writing 10mg/mL on the vial takes four seconds and removes the entire class of error this board exists to fix.

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

How fast was the escalation? That is usually the variable that explains the reports.

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

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

That only works if the fill weight is exactly the label weight, and it usually is not exactly anything.

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.

10mg into 1mL is 10mg/mL, and 0.5mg of that is 5 units

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.

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

units are a volume on a U-100 syringe, not a dose

15mg into 3mL is 5mg/mL, and 2.5mg of that is 50 units

if the maths gives you a fraction of a unit, change the concentration

Agreed — units are volume. Once that lands, the rest of the arithmetic is one division.

Increases in heart rate have been reported across this receptor class.

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

I would not round that figure. At 10mg/mL a rounding error of two units is a real fraction of the intended amount.

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

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.