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Evidence · Journal club · continued

Journal club: SURMOUNT-4 and continuation versus withdrawal — a second dataset posts 31–60

This is a continuation of a long topic, addressed by post number rather than by page. Start at post 1.

BV
b.vestergaardTL2 Moderator13 May 2025#31

Critical appraisal template: (1) What did the trial set out to estimate? (2) Could the design answer that question? (3) Was the population sufficiently similar to your population to apply the results? (4) What was the absolute effect, not just the relative one? (5) What are the two strongest criticisms available?

0 likes 15mo
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BGiordanoTL2Member14 May 2025#32

Session format: read the paper before posting. The discussion is much better when everyone has. Start with the estimand and population, then methods, then results, then limitations. That order makes critique coherent.

23 likes 14mo
BS
b.solbergTL2 Moderator16 May 2025#33
Norrington, post #26: Critical appraisal template: (1) What did the trial set out to estimate? (2) Could the design answer that question? (3) Was the population sufficiently similar to your population to apply the results? (4) What was the absolute effect, not just the relative one? (5) What are the two strongest criticisms available? Go to post

SOUL (N Engl J Med 2025): Oral semaglutide cardiovascular outcomes. Extends the cardiovascular evidence to the oral formulation. Note that oral bioavailability is lower and more variable than injectable.

6 likes in reply to #26 14mo
MC
m.coelhoTL2 Moderator18 May 2025#34

Picking up post #31: that is the part I would want checked first.

I disagree with the reply above, and I think the disagreement is substantive rather than terminological.

The distinction being drawn does not survive when you look at the published data for this specific question. I would be glad to be shown wrong on this, because the version I am arguing against is more convenient.

1 like 14mo
KR
k.radichTL2 Moderator19 May 2025#35

SURPASS-2 (N Engl J Med 2021): Direct comparison of tirzepatide with semaglutide 1.0 mg. The 1.0 mg dose is not the highest available, which is the central and legitimate criticism of the head-to-head evidence.

0 likes 14mo
HM
h.mbekiTL2 Moderator21 May 2025#36

SURMOUNT-OSA (N Engl J Med 2024): Tirzepatide in obstructive sleep apnoea, using an objective physiological endpoint. Notable because soft endpoints are avoided. Two parallel trials addressed the confounder directly.

31 likes 14mo
AR
a.reyesTL4 Admin23 May 2025#37
b.solberg, post #33: SOUL (N Engl J Med 2025): Oral semaglutide cardiovascular outcomes. Extends the cardiovascular evidence to the oral formulation. Note that oral bioavailability is lower and more variable than injectable. Go to post

I read post #35 twice before replying, because I had assumed the opposite.

FLOW (N Engl J Med 2024): Semaglutide renal outcomes in type 2 diabetes and chronic kidney disease. Stopped early for efficacy. Component-by-component analysis is essential because the components differ in how patient-important they are.

10 likes in reply to #33 14mo
BO
b.oseiTL2 Moderator25 May 2025 · edited#38
j.marchetti, post #25: SURPASS-2 (N Engl J Med 2021): Direct comparison of tirzepatide with semaglutide 1.0 mg. The 1.0 mg dose is not the highest available, which is the central and legitimate criticism of the head-to-head evidence. Go to post

This follows post #35 rather than contradicting it.

SURMOUNT-1 (N Engl J Med 2022): Tirzepatide obesity trial. The largest mean weight reduction for a pharmacological intervention at publication. Read the categorical thresholds carefully — they can exaggerate separation.

3 likes in reply to #25 14mo
RN
r.novakTL2 Moderator26 May 2025#39

TRIUMPH (ongoing): Retatrutide phase 3. No results yet. Nothing should be attributed to it because it has not finished. When it does, this discussion will return to it.

1 like 14mo
OA
o.abrahamsenTL328 May 2025#40
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batchlogTL3Regular29 May 2025#41

post #40 answers the question as asked. The question underneath it is different.

STEP 1 (N Engl J Med 2021): The pivotal obesity trial for semaglutide and the reference point for most subsequent comparison. Mean weight reduction was substantially larger than anything previously achieved pharmacologically.

28 likes 14mo
CC
c.chowdhuryTL2 Moderator31 May 2025 · edited#42

On post #38 — agreed on the reasoning, with one qualification.

SELECT (N Engl J Med 2023): Semaglutide cardiovascular outcomes without diabetes. The first outcome trial in people without diabetes, which decoupled the cardiovascular argument from glucose control. Read the absolute numbers, not just the relative reduction.

0 likes 14mo
TY
two_year_lineTL3Regular2 Jun 2025#43
m.nascimento, post #13: Session format: read the paper before posting. The discussion is much better when everyone has. Start with the estimand and population, then methods, then results, then limitations. That order makes critique coherent. Go to post

SURMOUNT-1 (N Engl J Med 2022): Tirzepatide obesity trial. The largest mean weight reduction for a pharmacological intervention at publication. Read the categorical thresholds carefully — they can exaggerate separation.

2 likes in reply to #13 14mo
IB
i.balogunTL2 Moderator3 Jun 2025#44
e.kuipers, post #23: post #22 answers the question as asked. The question underneath it is different. PIONEER 6 (N Engl J Med 2019): Cardiovascular safety trial for oral semaglutide, not efficacy. Non-inferiority for safety was met. The trial was not designed to establish benefit, though point estimates favoured the drug. 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.

9 likes in reply to #23 14mo
IT
impurity_tableTL35 Jun 2025#45
SO
s.ostergaardTL2 Moderator7 Jun 2025#46

STEP 1 (N Engl J Med 2021): The pivotal obesity trial for semaglutide and the reference point for most subsequent comparison. Mean weight reduction was substantially larger than anything previously achieved pharmacologically.

0 likes 14mo
BV
bias_varianceTL4Biostatistician8 Jun 2025#47
VPoulsen, post #20: SURMOUNT-1 (N Engl J Med 2022): Tirzepatide obesity trial. The largest mean weight reduction for a pharmacological intervention at publication. Read the categorical thresholds carefully — they can exaggerate separation. Go to post

Session format: read the paper before posting. The discussion is much better when everyone has. Start with the estimand and population, then methods, then results, then limitations. That order makes critique coherent.

5 likes in reply to #20 14mo
DF
d.ferreiraTL2 Moderator10 Jun 2025#48

I read post #46 twice before replying, because I had assumed the opposite.

Critical appraisal template: (1) What did the trial set out to estimate? (2) Could the design answer that question? (3) Was the population sufficiently similar to your population to apply the results? (4) What was the absolute effect, not just the relative one? (5) What are the two strongest criticisms available?

14 likes 14mo
TV
t.vasquezTL4 Moderator11 Jun 2025 · edited#49

PIONEER 6 (N Engl J Med 2019): Cardiovascular safety trial for oral semaglutide, not efficacy. Non-inferiority for safety was met. The trial was not designed to establish benefit, though point estimates favoured the drug.

0 likes 14mo
JP
j.petrovTL2 Moderator13 Jun 2025#50

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.

2 likes 13mo
EM
e.mensaTL215 Jun 2025#51
VD
vial_deskTL3Regular16 Jun 2025#52

SURMOUNT-OSA (N Engl J Med 2024): Tirzepatide in obstructive sleep apnoea, using an objective physiological endpoint. Notable because soft endpoints are avoided. Two parallel trials addressed the confounder directly.

8 likes 13mo
AE
a.eriksenTL2 Moderator18 Jun 2025#53
f.danquah, post #15: 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. Go to post

SOUL (N Engl J Med 2025): Oral semaglutide cardiovascular outcomes. Extends the cardiovascular evidence to the oral formulation. Note that oral bioavailability is lower and more variable than injectable.

2 likes in reply to #15 13mo
TY
two_year_lineTL3Regular19 Jun 2025 · edited#54
Wickramasinghe, post #4: SELECT (N Engl J Med 2023): Semaglutide cardiovascular outcomes without diabetes. The first outcome trial in people without diabetes, which decoupled the cardiovascular argument from glucose control. Read the absolute numbers, not just the relative reduction. Go to post

post #53 is right about the mechanism and I think understates the practical bit.

TRIUMPH (ongoing): Retatrutide phase 3. No results yet. Nothing should be attributed to it because it has not finished. When it does, this discussion will return to it.

0 likes in reply to #4 13mo
SK
s.kuuselaTL2 Moderator21 Jun 2025#55

SELECT (N Engl J Med 2023): Semaglutide cardiovascular outcomes without diabetes. The first outcome trial in people without diabetes, which decoupled the cardiovascular argument from glucose control. Read the absolute numbers, not just the relative reduction.

26 likes 13mo
CL
coldchain_liuTL3Regular22 Jun 2025#56

FLOW (N Engl J Med 2024): Semaglutide renal outcomes in type 2 diabetes and chronic kidney disease. Stopped early for efficacy. Component-by-component analysis is essential because the components differ in how patient-important they are.

12 likes 13mo
JI
j.iyerTL2 Moderator24 Jun 2025#57
k.farrugia, post #22: SURMOUNT-OSA (N Engl J Med 2024): Tirzepatide in obstructive sleep apnoea, using an objective physiological endpoint. Notable because soft endpoints are avoided. Two parallel trials addressed the confounder directly. Go to post

On post #53 — agreed on the reasoning, with one qualification.

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 #22 13mo
PM
physio_marchettiTL2Physiotherapist25 Jun 2025#58

post #57 answers the question as asked. The question underneath it is different.

SURMOUNT-1 (N Engl J Med 2022): Tirzepatide obesity trial. The largest mean weight reduction for a pharmacological intervention at publication. Read the categorical thresholds carefully — they can exaggerate separation.

0 likes 13mo
NO
n.oseiTL2 Moderator27 Jun 2025#59

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.

0 likes 13mo
BD
baseline_driftTL228 Jun 2025#60