Mayor NEWS.
Zenagamtide study discontinuation in new T2D trial, is extremely INFLATED.
Since
$NVO presented P2 data with Zenagamtide/Amycretin in T2D, at lot of people including me have looked at the data and thought somethings wrong.
5mg up to 40mg had 16-34% discontinuation on side effects 😳 that would be a commercial disaster if “true”
But looking at side effects for nausea, vomiting and Diarrhea, they did not reflect sky high incidents, what most would envision to hit 16-34% discontinuation. Also from comparing with other data by Tirzepatide and Retatrutide.
Something did not add up.
But
@flippyfloppy52 has found the reason. And that’s in how the protocol is designed. It’s much much more strict on how to determine if a trial participant should be counted as discontinuation due to side effects.
In Zenagamtide protocol you would be forced to leave the trial, if you are not able to take the next dose as scheduled.
“This trial used a fixed-dose-escalation trial design; if the planned treatment dose was not tolerated, treatment was permanently discontinued.”
Meaning if you just tittered up to 20mg and you get overwhelmed with nausea and maybe vomit 1 time. You ask I you can delay taking the next dose. Or maybe even go back to 10mg for a few more weeks before up-titration to 20mg again.
In this trial you got booted immediately if you could not take the next dose as scheduled. Then you would be registered as discontinuation due to side effects.
@flippyfloppy52 looked up at Tirzepatide study. And I just looked up Retatrutide 36 week P2 in T2D. In those trials there’s much much more flexibility.
Picture from Retatrutide P2 in T2D.
Here you can completely miss more than 2 dosing and when you are ready to start again you can start at a lower dose.
This difference in how to determine what an investigator initiated discontinuation due to side effects are. This completely change the storyline of how unattractive Zenagamtide is when up to 34% had to quit the trial.
Why NVO not have made this huuuuge difference more visible by stating it in the poster. I don’t know.
But what I do know is investors at multiple different national and global investors sites has been discussing how bad this looked for Zenagamtide and
$NVO
I hope
$NVO explicitly talks in to this, when they later today will have their ADA investor presentation.
These very unfavourable discontinuation numbers are reflecting THIS specific trial design.
All ongoing P3 trials have flexible dosing giving participants the possibility to start at lower doses etc.
@maziardoustdar @mnovod79
$LLY $VKTX
5/
Contrast that with
$NVO Amycretin Ph2 T2D rigid dose escalation and DC criteria from the press release attached and you get a reasonable explanation as to why TRAE translated into TRAE DC at a much higher rate than
$LLY SURMOUNT 2.