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ForumsSide Effects & ManagementNausea incidence by dose tier — STEP and SURMOUNT meta-analysis

Nausea incidence by dose tier — STEP and SURMOUNT meta-analysis

Dr.Martinez Mon, Jun 8, 2026 at 2:56 AM 16 replies 432 viewsPage 1 of 4
Dr.Martinez
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Jun 8, 2026 at 2:56 AM#1

This gets cited here weekly, usually second-hand, so it is worth setting out what it does and does not establish.

The line between titrate-through and stop is not severity, it is trajectory and what else is present. Nausea that peaks and improves within a week is the expected pattern. Nausea that is escalating, or that comes with severe upper-abdominal pain radiating to the back, or that prevents fluids for more than a day, is a different conversation and belongs with a clinician the same day.

Where I think it is weakest: the comparator does most of the work in how this gets reported, and it is not the comparator most people think they are citing.

What I am trying to establish is whether holding at a lower dose for longer actually reduces total side-effect burden or just spreads it out. Not looking for reassurance. Looking for the part I have got wrong.

Note on sourcing:
Figures above are from the primary publication rather than the press summary. If a number here disagrees with one you have, post yours and we will work out which of us is reading a secondary source.
4 24AttorneyGrant, DebRD_ATL, KristenIndy and 1 other
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LipidDoc_ATL
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Jun 8, 2026 at 2:59 AM#2
Dr.Martinez said:
The line between titrate-through and stop is not severity, it is trajectory and what else is present.

That is correct as far as it goes, and here is where it stops going. The practical protocol is dull and it works: smaller meals, stop eating at the first sign of fullness rather than at the end of the plate, drop the fat fraction of meals in the two days after dosing, and do not lie down straight after eating. Most of what people call unmanageable nausea is a meal-size and meal-composition problem interacting with a stomach that is emptying slowly.

Last edited: Jun 8, 2026 at 7:59 AM
3 23traveltech_sara, AttorneyGrant, DebRD_ATL
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FDA_TrackerJim
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Jun 8, 2026 at 3:03 AM#3
Dr.Martinez said:
The line between titrate-through and stop is not severity, it is trajectory and what else is present.

I dislike how confidently this board tells people to push through. Incidence figures around 20 to 25% at the higher doses are class-typical, but the trials also had a discontinuation column, and "manageable with protocols" is not the same as manageable for everyone.

Last edited: Jun 8, 2026 at 6:03 AM
2 22MikeNYC_runner
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EndoResFellow
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Jun 8, 2026 at 3:06 AM#4

This one has a reasonably settled answer, so here it is. Holding genuinely reduces total burden rather than redistributing it, because the gastric-emptying component adapts. Receptor-level tachyphylaxis to the delayed-emptying effect develops over weeks while the central appetite effect persists, so the same dose is materially more comfortable at week six than at week two. A slower ladder therefore reaches the same dose with less cumulative nausea, not the same nausea spread thinner.

I would rather be corrected than agreed with, if it comes to it.

1 21NurseKim_ATL
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SandraNC_45
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Jun 8, 2026 at 3:27 AM#5
LipidDoc_ATL said:
The practical protocol is dull and it works: smaller meals, stop eating at the first sign of fullness rather than at the end of the plate, drop the…

True, though the ladder is longer and that is not a neutral detail — six dose steps means six opportunities to stall on the way up, and plenty of people never reach the dose the headline number came from.

I would rather be corrected than agreed with, if it comes to it.

Last edited: Jun 8, 2026 at 8:27 AM
50 20Dr.PainCLE, mike_mealprep, NicoleRaleigh and 47 others
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