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Clinical · Comorbidities

Type 2 diabetes and the largest part of the evidence base — does this still hold?

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Solved by integrator_trace in post #9
Obstructive sleep apnoea: SURMOUNT-OSA used an objective endpoint, the apnoea-hypopnoea index. Reduction was substantial. Whether the benefit is weight loss or a direct drug effect is not resolved by the trial.

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N
NorringtonTL3Regular23 Sep 2024#1
Community wiki post. Any member at trust level 3 or above can edit this post; every edit is recorded. Last edited by np_gilmore on 18 Sep 2025.
  • 2 Dec 2024 — mira.patel: Replaced an unsourced figure with the published one and cited it.
  • 3 Jan 2025 — n.rowntree: Removed a claim that the cited source did not support.
  • 28 Nov 2024 — KTurkington: Clarified the distinction that was causing repeat questions below.
  • 18 Sep 2025 — np_gilmore: Added the worked example and a unit label to the table header.
Editors: mira.patel, n.rowntree, KTurkington, np_gilmore

Type 2 diabetes and the largest part of the evidence base — does this still hold? I have a specific reason for asking rather than idle curiosity, and the context is below.

Asking about a population rather than about a person.

The published trials in this class mostly enrolled a fairly specific group, and the questions here frequently come from people well outside it. I would like to understand what the honest position is when someone falls outside the studied population: not "it is fine" and not "there is no data", but what the reasoning actually looks like.

42 likes 22mo
AN
a.norgaardTL2 Moderator24 Sep 2024 · edited#2

Comorbidity control: if a comorbidity (high blood pressure, high lipids) is not adequately controlled, the decision about adding compounds in this class depends on the current control status, not on the compound alone.

10 likes 22mo
K
KTurkingtonTL3Regular25 Sep 2024#3
a.norgaard, post #2: Comorbidity control: if a comorbidity (high blood pressure, high lipids) is not adequately controlled, the decision about adding compounds in this class depends on the current control status, not on the compound alone. Go to post

Chronic kidney disease: compounds in this class have renal benefit in people with kidney disease. The benefit appears to be additive to other renal-protective agents, not a replacement for them.

1 like in reply to #2 22mo
EM
e.mwangiTL2 Moderator26 Sep 2024#4

Picking up post #2: that is the part I would want checked first.

Hepatic steatosis and MASH: a phase 2 trial in semaglutide for steatohepatitis showed resolution was more frequent on treatment. Histological resolution is a surrogate for long-term clinical outcomes like cirrhosis.

0 likes 22mo
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LJankowiakTL3Regular26 Sep 2024#5

Cardiovascular disease: several compounds have cardiovascular outcome trials. SELECT was in people without diabetes; SUSTAIN 6 was in high-risk diabetes. Absolute benefit is largest in high-risk people.

30 likes 22mo
SL
s.lundgrenTL2 Moderator27 Sep 2024#6

For anyone arriving from a search: the marked solution above is the direct answer, and the replies underneath it add the caveats that make it safe to use.

15 likes 22mo
NB
n.bridgewaterTL2Member28 Sep 2024#7
s.lundgren, post #6: For anyone arriving from a search: the marked solution above is the direct answer, and the replies underneath it add the caveats that make it safe to use. Go to post

I read post #5 twice before replying, because I had assumed the opposite.

Bariatric surgery history: altered anatomy after surgery affects absorption. That matters for oral medications and for reconstituted solutions. Discussing specific medications and doses with a clinician familiar with bariatric surgery is prudent.

3 likes in reply to #6 22mo
NL
ne.laurentTL2 Moderator28 Sep 2024#8
LJankowiak, post #5: Cardiovascular disease: several compounds have cardiovascular outcome trials. SELECT was in people without diabetes; SUSTAIN 6 was in high-risk diabetes. Absolute benefit is largest in high-risk people. Go to post

This follows post #5 rather than contradicting it.

PCOS and metabolic overlap: polycystic ovary syndrome has metabolic overlap with obesity and insulin resistance. Data on compounds in this class in PCOS specifically is thin; most discussion is by mechanism.

0 likes in reply to #5 22mo
IT
integrator_traceTL2Member Solution29 Sep 2024#9
s.lundgren, post #6: For anyone arriving from a search: the marked solution above is the direct answer, and the replies underneath it add the caveats that make it safe to use. Go to post

Obstructive sleep apnoea: SURMOUNT-OSA used an objective endpoint, the apnoea-hypopnoea index. Reduction was substantial. Whether the benefit is weight loss or a direct drug effect is not resolved by the trial.

7 likes in reply to #6 22mo
NK
n.kirchnerTL2 Moderator30 Sep 2024#10

Multiple comorbidities: a person with diabetes, kidney disease, and cardiovascular disease is outside the studied populations in most trials. Extrapolating to that person requires reasoning from the individual component trials and mechanisms.

22 likes 22mo
VM
v.milanoviTL3Regular30 Sep 2024#11

Interactions between comorbidities: diabetes and kidney disease together change the risk calculation for hypoglycemia and for medication clearance. They are not independent variables.

3 likes 22mo
PF
p.friskTL2 Moderator1 Oct 2024#12

Having read the exchange above, I think I was wrong earlier in this topic and I want to say so plainly rather than quietly editing.

The correction was fair and I had been repeating something I had not checked carefully enough.

11 likes 22mo
NB
n.bridgewaterTL2Member1 Oct 2024 · edited#13

This follows post #10 rather than contradicting it.

Type 2 diabetes: the population with the largest evidence base for these compounds. The SURPASS and SUSTAIN programmes established glycaemic benefit. The renal and cardiovascular benefit evidence is separate from the glycaemic benefit evidence.

32 likes 22mo
HF
h.fonsecaTL2 Moderator2 Oct 2024#14
ne.laurent, post #8: This follows post #5 rather than contradicting it. PCOS and metabolic overlap: polycystic ovary syndrome has metabolic overlap with obesity and insulin resistance. Data on compounds in this class in PCOS specifically is thin; most discussion is by mechanism. Go to post

I read post #12 twice before replying, because I had assumed the opposite.

Cardiovascular disease: several compounds have cardiovascular outcome trials. SELECT was in people without diabetes; SUSTAIN 6 was in high-risk diabetes. Absolute benefit is largest in high-risk people.

0 likes in reply to #8 22mo
SF
sterile_fileTL3Regular2 Oct 2024#15

post #14 answers the question as asked. The question underneath it is different.

Thank you for the correction. I have edited my earlier post with a note rather than silently, so the thread still makes sense to read. The error was mine and it was the kind that comes from remembering a figure instead of looking it up.

6 likes 22mo
NC
n.chowdhuryTL2 Moderator3 Oct 2024#16

Type 2 diabetes: the population with the largest evidence base for these compounds. The SURPASS and SUSTAIN programmes established glycaemic benefit. The renal and cardiovascular benefit evidence is separate from the glycaemic benefit evidence.

16 likes 22mo
AS
a.stephanopoulosTL3Regular3 Oct 2024#17

Multiple comorbidities: a person with diabetes, kidney disease, and cardiovascular disease is outside the studied populations in most trials. Extrapolating to that person requires reasoning from the individual component trials and mechanisms.

0 likes 22mo
SL
s.lundgrenTL2 Moderator4 Oct 2024#18
integrator_trace, post #9: Obstructive sleep apnoea: SURMOUNT-OSA used an objective endpoint, the apnoea-hypopnoea index. Reduction was substantial. Whether the benefit is weight loss or a direct drug effect is not resolved by the trial. Go to post

Coming back to post #16, because the follow-up matters more than the original answer.

Interactions between comorbidities: diabetes and kidney disease together change the risk calculation for hypoglycemia and for medication clearance. They are not independent variables.

1 like in reply to #9 22mo
ES
e.silvaTL2 Moderator4 Oct 2024#19

post #18 is right about the mechanism and I think understates the practical bit.

Comorbidity control: if a comorbidity (high blood pressure, high lipids) is not adequately controlled, the decision about adding compounds in this class depends on the current control status, not on the compound alone.

0 likes 22mo
AA
an.adeyemiTL2 Moderator5 Oct 2024#20

Worth separating two things that post #16 runs together.

Hepatic steatosis and MASH: a phase 2 trial in semaglutide for steatohepatitis showed resolution was more frequent on treatment. Histological resolution is a surrogate for long-term clinical outcomes like cirrhosis.

4 likes 22mo
N
NorringtonTL3Regular5 Oct 2024#21
e.mwangi, post #4: Picking up post #2: that is the part I would want checked first. Hepatic steatosis and MASH: a phase 2 trial in semaglutide for steatohepatitis showed resolution was more frequent on treatment. Histological resolution is a surrogate for long-term clinical outcomes like cirrhosis. Go to post

On post #17 — agreed on the reasoning, with one qualification.

Chronic kidney disease: compounds in this class have renal benefit in people with kidney disease. The benefit appears to be additive to other renal-protective agents, not a replacement for them.

2 likes in reply to #4 22mo
GT
g.tammTL2 Moderator6 Oct 2024#22

Obstructive sleep apnoea: SURMOUNT-OSA used an objective endpoint, the apnoea-hypopnoea index. Reduction was substantial. Whether the benefit is weight loss or a direct drug effect is not resolved by the trial.

0 likes 22mo
D
DKwiatkowskiTL3Regular6 Oct 2024#23

PCOS and metabolic overlap: polycystic ovary syndrome has metabolic overlap with obesity and insulin resistance. Data on compounds in this class in PCOS specifically is thin; most discussion is by mechanism.

27 likes 22mo
DA
d.achebeTL2 Moderator7 Oct 2024#24
n.kirchner, post #10: Multiple comorbidities: a person with diabetes, kidney disease, and cardiovascular disease is outside the studied populations in most trials. Extrapolating to that person requires reasoning from the individual component trials and mechanisms. Go to post

Bariatric surgery history: altered anatomy after surgery affects absorption. That matters for oral medications and for reconstituted solutions. Discussing specific medications and doses with a clinician familiar with bariatric surgery is prudent.

13 likes in reply to #10 22mo
SG
s.grigorescuTL2Member7 Oct 2024#25
ne.laurent, post #8: This follows post #5 rather than contradicting it. PCOS and metabolic overlap: polycystic ovary syndrome has metabolic overlap with obesity and insulin resistance. Data on compounds in this class in PCOS specifically is thin; most discussion is by mechanism. Go to post

Two things before anyone answers the substance.

First, the context in the first post is clear and specific. Second, the question is framed so that an answer can actually address it. Both are the norm here and both matter more than they sound.

4 likes in reply to #8 22mo
RW
r.weissTL2 Moderator8 Oct 2024#26

Obstructive sleep apnoea: SURMOUNT-OSA used an objective endpoint, the apnoea-hypopnoea index. Reduction was substantial. Whether the benefit is weight loss or a direct drug effect is not resolved by the trial.

0 likes 22mo

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