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gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout attributable to GI events, and management evidence.

162 questions · sorted by votes · page 1 of 7

56 votes 3 answers32k views
At what point does vomiting on a GLP-1 agonist stop being a tolerability issue and become a clinical problem?

I have vomited three times in the last ten days, always in the twenty-four to forty-eight hours after my injection, always in the morning, and each time I felt…

vomiting
vomiting

Emesis as a reported adverse event: trial incidence, its relationship to dose escalation rate, dehydration risk, and when it stops being a…

57 questions
gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

162 questions
kidney-function
kidney-function

eGFR, creatinine, cystatin C and albuminuria: the acute haemodynamic dip that is not injury, the renal outcome data from the FLOW programme, and…

141 questions
hydration
hydration

Fluid intake when thirst and intake cues are both blunted: how much of the early scale drop is fluid, how dehydration confounds a renal panel, and…

14 questions
asked by nine_point_nine 60k · 21 months ago
55 votes 3 answers41k views
What is the actual trial incidence of nausea by agent and dose, and how comparable are the numbers?

Every summary I read says nausea is "the most common adverse event" and then quotes a single percentage, usually without saying which trial, which dose or which…

nausea
nausea

The dominant tolerability signal in every trial of the class: incidence, timing relative to a dose step, duration, and the distinction between…

55 questions
gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

162 questions
clinical-trials
clinical-trials

Reading the primary literature properly: estimands, intention-to-treat versus per-protocol, confidence intervals, absolute versus relative…

745 questions
dose-escalation
dose-escalation

The decision to move up a step: what evidence supports a four-week interval, what happens when you compress it, and how trial protocols handled…

103 questions
asked by marcus_thorbjorn 9.4k · 2.1 years ago
50 votes 3 answers29k views
Why does the constipation outlast the nausea by months when both are supposedly the same mechanism?

The nausea followed exactly the pattern I was told to expect: bad for a fortnight after each dose step, better by week four, essentially gone by month five. The…

constipation
constipation

Slowed transit as a consequence of delayed gastric emptying and reduced intake: incidence figures, fibre and hydration evidence, and why it often…

55 questions
gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

162 questions
glp1-mechanism
glp1-mechanism

Receptor-level pharmacology: GLP-1R as a class B GPCR, cAMP and PKA signalling, biased agonism, internalisation and resensitisation, and the…

132 questions
maintenance-dose
maintenance-dose

Staying put: the lowest dose that holds a result, the difference between the maximum studied dose and the maximum useful dose, and what the…

54 questions
asked by swab_stopper 8.8k · 23 months ago
45 votes 3 answers17k views
How do I tell whether I am eating less because of reduced reward drive or because I am subtly nauseated?

Eight weeks in on tirzepatide and I cannot work out which of two things is happening, and I think it matters. Version A: my appetite drive is genuinely reduced, food…

food-noise
food-noise

The reduction in intrusive, appetitive thinking about food that most people on the class describe. Its likely basis in central GLP-1R signalling,…

8 questions
nausea
nausea

The dominant tolerability signal in every trial of the class: incidence, timing relative to a dose step, duration, and the distinction between…

55 questions
gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

162 questions
glp1-mechanism
glp1-mechanism

Receptor-level pharmacology: GLP-1R as a class B GPCR, cAMP and PKA signalling, biased agonism, internalisation and resensitisation, and the…

132 questions
asked by pierce_count 24k · 15 months ago
43 votes 3 answers19k views
Week 14 and still nauseated most of the week. How do I tell titration nausea from a persistent problem?

Fourteen weeks in, currently at the second-to-top dose, and I have been told repeatedly that the nausea settles. It has not settled. It has changed shape. Weeks 1-6…

nausea
nausea

The dominant tolerability signal in every trial of the class: incidence, timing relative to a dose step, duration, and the distinction between…

55 questions
gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

162 questions
titration
titration

Stepwise dose increases over weeks, why the label schedules exist at all, and what tolerability-driven deviation from a schedule looks like in…

456 questions
maintenance-dose
maintenance-dose

Staying put: the lowest dose that holds a result, the difference between the maximum studied dose and the maximum useful dose, and what the…

54 questions
asked by ayo_fadipe 9.4k · 11 months ago
43 votes3 answers18k views
How do I distinguish drug-related constipation from something obstructive, given both present as not going?

I have had slow bowels since starting semaglutide and I have accepted that as the trade. Last week was different and it frightened me: four days with nothing, a hard…

constipation
constipation

Slowed transit as a consequence of delayed gastric emptying and reduced intake: incidence figures, fibre and hydration evidence, and why it often…

55 questions
gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

162 questions
vomiting
vomiting

Emesis as a reported adverse event: trial incidence, its relationship to dose escalation rate, dehydration risk, and when it stops being a…

57 questions
harm-reduction
harm-reduction

Reducing avoidable risk where a decision has already been made: independent verification before use, sterility practice, dose arithmetic checked…

472 questions
asked by grainne_ahearn 50k · 6 months ago
41 votes 5 answers27k views
Does reflux at week nine of cagrilintide usually resolve without a dose change?

Concretely: reflux · nine · cagrilintide. I have read the obvious sources and they disagree with each other, so I would rather ask people who have actually done this.…

gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

162 questions
titration
titration

Stepwise dose increases over weeks, why the label schedules exist at all, and what tolerability-driven deviation from a schedule looks like in…

456 questions
amylin
amylin

Amylin and its analogues, most prominently cagrilintide, as a satiety mechanism orthogonal to incretin signalling. Includes the pharmacology of…

237 questions
asked by samir_bennani 15k · 2.0 years ago
40 votes 5 answers46k views
Does early satiety at week eight of semaglutide usually resolve without a dose change?

The specifics, since they change the answer: early satiety · eight · semaglutide. Everything I have found on this is either a forum aside or a product page, neither…

gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

162 questions
titration
titration

Stepwise dose increases over weeks, why the label schedules exist at all, and what tolerability-driven deviation from a schedule looks like in…

456 questions
semaglutide
semaglutide

A GLP-1 receptor agonist with a fatty-acid-acylated backbone and a roughly one-week half-life, marketed for type 2 diabetes and for weight…

470 questions
asked by ahmed_zerouali 15k · 2.3 years ago
40 votes 5 answers18k views
What did SURMOUNT-5 do with participants who could not tolerate a step?

This came up because two published schedules for the same agent differ. I would like to know the limits of what can be inferred from this. What I am trying to avoid…

titration
titration

Stepwise dose increases over weeks, why the label schedules exist at all, and what tolerability-driven deviation from a schedule looks like in…

456 questions
clinical-trials
clinical-trials

Reading the primary literature properly: estimands, intention-to-treat versus per-protocol, confidence intervals, absolute versus relative…

745 questions
gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

162 questions
asked by mira_sundqvist 7.1k · 21 months ago
39 votes0 answers46k views
Is reflux on orforglipron dose-dependent or dose-rate dependent?

The case in front of me: reflux · orforglipron. I can predict the outcome but I cannot explain it, which means I will get the next case wrong. I would like to know…

gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

162 questions
titration
titration

Stepwise dose increases over weeks, why the label schedules exist at all, and what tolerability-driven deviation from a schedule looks like in…

456 questions
orforglipron
orforglipron

A non-peptide, orally bioavailable small-molecule GLP-1 receptor agonist studied in the ATTAIN programme. It is not a peptide, which changes…

219 questions
asked by rota_site 36k · 22 months ago
38 votes 5 answers54k views
Does holding at 2.4 mg for two weeks before escalating reduce early satiety?

What I am working with: 2.4 mg · two weeks · early satiety. I keep seeing this stated as a fact with no explanation attached, and unexplained facts make me…

titration
titration

Stepwise dose increases over weeks, why the label schedules exist at all, and what tolerability-driven deviation from a schedule looks like in…

456 questions
gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

162 questions
dose-escalation
dose-escalation

The decision to move up a step: what evidence supports a four-week interval, what happens when you compress it, and how trial protocols handled…

103 questions
asked by esben_lykke 84k · 2.2 years ago
38 votes 5 answers36k views
What is the reported incidence of early satiety on tirzepatide in SURPASS-2?

Stated plainly: early satiety · tirzepatide · SURPASS-2. I have read the primary source rather than the summary, which has left me with more questions. I understand…

gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

162 questions
clinical-trials
clinical-trials

Reading the primary literature properly: estimands, intention-to-treat versus per-protocol, confidence intervals, absolute versus relative…

745 questions
tirzepatide
tirzepatide

A dual GIP and GLP-1 receptor agonist. Questions here cover the SURPASS and SURMOUNT programmes, the practical differences from a pure GLP-1…

370 questions
asked by fib4_reader 24k · 22 months ago
37 votes0 answers49k views
Does holding at 15 mg for sixteen weeks before escalating reduce reflux?

What I have: 15 mg · sixteen weeks · reflux. I can predict the outcome but I cannot explain it, which means I will get the next case wrong. I would like to know how…

titration
titration

Stepwise dose increases over weeks, why the label schedules exist at all, and what tolerability-driven deviation from a schedule looks like in…

456 questions
gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

162 questions
dose-escalation
dose-escalation

The decision to move up a step: what evidence supports a four-week interval, what happens when you compress it, and how trial protocols handled…

103 questions
asked by p_mkhize 58k · 2.4 years ago
37 votes5 answers47k views
Does early satiety at week two of survodutide usually resolve without a dose change?

The case in front of me: early satiety · two · survodutide. This is a procedural question rather than a theoretical one, and I would like the procedure rather than…

gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

162 questions
titration
titration

Stepwise dose increases over weeks, why the label schedules exist at all, and what tolerability-driven deviation from a schedule looks like in…

456 questions
survodutide
survodutide

A GLP-1 and glucagon receptor dual agonist with a substantial published MASH dataset. Use this tag for its hepatic endpoints, its dose ladder, and…

225 questions
asked by tabular_nums 71k · 19 months ago
37 votes 5 answers47k views
What did the placebo arm of SURMOUNT-4 report for early satiety?

What I have: SURMOUNT-4 · early satiety. This is presented as though it settles something, and I am not convinced it does. I have two documents that appear to…

clinical-trials
clinical-trials

Reading the primary literature properly: estimands, intention-to-treat versus per-protocol, confidence intervals, absolute versus relative…

745 questions
gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

162 questions
asked by sample_id 17k · 16 months ago
37 votes3 answers15k views
What proportion of trial participants actually stopped because of GI events, and how does that compare to real-world dropout?

I am trying to calibrate how likely it is that GI side effects end up being the reason someone stops, as opposed to being an unpleasant thing they get through. The…

gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

162 questions
discontinuation
discontinuation

Stopping treatment: tapering versus abrupt cessation, what the trial withdrawal arms measured, clinically driven stops, and the practical planning…

21 questions
clinical-trials
clinical-trials

Reading the primary literature properly: estimands, intention-to-treat versus per-protocol, confidence intervals, absolute versus relative…

745 questions
vomiting
vomiting

Emesis as a reported adverse event: trial incidence, its relationship to dose escalation rate, dehydration risk, and when it stops being a…

57 questions
asked by ellis_thorne 17k · 13 months ago
35 votes 5 answers44k views
What did the placebo arm of STEP 5 report for early satiety?

The specifics, since they change the answer: STEP 5 · early satiety. I have the document in front of me and I can read the numbers. What I cannot do is interpret…

clinical-trials
clinical-trials

Reading the primary literature properly: estimands, intention-to-treat versus per-protocol, confidence intervals, absolute versus relative…

745 questions
gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

162 questions
asked by pip_okonjo 13k · 14 months ago
35 votes 5 answers16k views
Does reflux at week seven of a GLP-1 receptor agonist usually resolve without a dose change?

The particulars: reflux · seven · a GLP-1 receptor agonist. I want a method I can write down and repeat, not a rule of thumb. I would rather over-engineer this than…

gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

162 questions
titration
titration

Stepwise dose increases over weeks, why the label schedules exist at all, and what tolerability-driven deviation from a schedule looks like in…

456 questions
asked by bac_or_bust 33k · 18 months ago
34 votes0 answers22k views
Is reflux on dulaglutide dose-dependent or dose-rate dependent?

Conditions: reflux · dulaglutide. I suspect the usual explanation for this is wrong, or at least incomplete. I am aware this may have a boring answer. I would still…

gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

162 questions
titration
titration

Stepwise dose increases over weeks, why the label schedules exist at all, and what tolerability-driven deviation from a schedule looks like in…

456 questions
dulaglutide
dulaglutide

A once-weekly GLP-1 receptor agonist built on an Fc fusion rather than fatty-acid acylation. Use this tag for questions about the fusion-protein…

200 questions
asked by fresh_bac 9.7k · 14 months ago
32 votes0 answers39k views
What does ATTAIN-1 tell me about early satiety at the 12 mg dose?

Details up front: ATTAIN-1 · early satiety · 12 mg. I can parse the result. I am less sure what it licenses me to conclude. I have deliberately not looked at anyone…

clinical-trials
clinical-trials

Reading the primary literature properly: estimands, intention-to-treat versus per-protocol, confidence intervals, absolute versus relative…

745 questions
gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

162 questions
titration
titration

Stepwise dose increases over weeks, why the label schedules exist at all, and what tolerability-driven deviation from a schedule looks like in…

456 questions
asked by aine_mulcahy 28k · 23 months ago
31 votes 5 answers52k views
Does a slower rate of loss reduce gallstone risk in practice?

For the avoidance of doubt, nothing here is urgent — I would be in a clinic rather than a text box. This is one of those things that everyone repeats and nobody…

gallbladder
gallbladder

Cholelithiasis and cholecystitis risk during rapid weight loss and on treatment: how much is attributable to the rate of loss versus to the drug,…

8 questions
gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

162 questions
clinical-trials
clinical-trials

Reading the primary literature properly: estimands, intention-to-treat versus per-protocol, confidence intervals, absolute versus relative…

745 questions
asked by ines_delacruz 16k · 20 months ago
31 votes 4 answers30k views
What does SUSTAIN-6 tell me about reflux at the 2 mg dose?

Setup, so nobody has to ask: SUSTAIN-6 · reflux · 2 mg. I have read the primary source rather than the summary, which has left me with more questions. I understand…

clinical-trials
clinical-trials

Reading the primary literature properly: estimands, intention-to-treat versus per-protocol, confidence intervals, absolute versus relative…

745 questions
gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

162 questions
titration
titration

Stepwise dose increases over weeks, why the label schedules exist at all, and what tolerability-driven deviation from a schedule looks like in…

456 questions
asked by ines_brandt 113k · 2.1 years ago
31 votes5 answers25k views
What did the placebo arm of SURMOUNT-2 report for reflux?

Stated plainly: SURMOUNT-2 · reflux. I have read the primary source rather than the summary, which has left me with more questions. I understand the headline. I do…

clinical-trials
clinical-trials

Reading the primary literature properly: estimands, intention-to-treat versus per-protocol, confidence intervals, absolute versus relative…

745 questions
gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

162 questions
asked by area_percent 9.9k · 2.1 years ago
31 votes0 answers23k views
Is early satiety on a GLP-1 receptor agonist dose-dependent or dose-rate dependent?

Setup, so nobody has to ask: early satiety · a GLP-1 receptor agonist. The empirical answer seems settled. The explanation does not. If the honest answer is that…

gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

162 questions
titration
titration

Stepwise dose increases over weeks, why the label schedules exist at all, and what tolerability-driven deviation from a schedule looks like in…

456 questions
asked by ivo_paunovic 16k · 12 months ago
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