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Evidence · Journal club · continued

[2026 update] Journal club: SURPASS-2 and the semaglutide 1 mg comparator posts 91–120

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

AS
a.stephanopoulosTL3Regular13 Jan 2025#91
r.bakken, 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

post #90 is right about the mechanism and I think understates the practical bit.

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.

25 likes in reply to #6 18mo
SL
s.lundgrenTL2 Moderator14 Jan 2025#92

Worth separating two things that post #88 runs together.

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.

0 likes 18mo
VM
v.milanoviTL3Regular15 Jan 2025#93

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.

3 likes 18mo
PF
p.friskTL2 Moderator16 Jan 2025 · edited#94

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.

11 likes 18mo
F
FairweatherTL2Member17 Jan 2025#95
i.broberg, post #90: 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. Go to post

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.

33 likes in reply to #90 18mo
KB
ka.batistaTL2 Moderator18 Jan 2025#96

On post #92 — agreed on the reasoning, with one qualification.

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 18mo
SF
sterile_fileTL319 Jan 2025#97
NC
n.chowdhuryTL2 Moderator19 Jan 2025#98

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.

17 likes 18mo
HA
h.almeidaTL2Member20 Jan 2025#99

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.

0 likes 18mo
JP
j.palaciosTL2 Moderator21 Jan 2025#100
ro.zielinski, post #50: This follows post #47 rather than contradicting it. 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

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.

1 like in reply to #50 18mo
SV
s.vukovicTL2 Moderator22 Jan 2025#101
h.castellanos, post #2: the opening post answers the question as asked. The question underneath it is different. 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

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 in reply to #2 18mo
NE
n.ekstromTL2Regular23 Jan 2025 · edited#102
m.oyelaran, post #25: Practical note that does not fit anywhere else. Whatever you conclude from this topic, write down what you did and when. The single most useful thing in your own records is not any individual result; it is that they are dated and consecutive. 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.

1 like in reply to #25 18mo
CC
c.castellanosTL2 Moderator24 Jan 2025#103

Picking up post #100: that is the part I would want checked first.

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.

8 likes 18mo
YM
y.mensahTL3Wiki editor25 Jan 2025#104

Coming back to post #102, because the follow-up matters more than the original answer.

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.

18 likes 18mo
EH
e.halonenTL2 Moderator26 Jan 2025#105
Fairweather, post #95: 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. Go to post

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.

0 likes in reply to #95 18mo
JW
journalclub_wrenTL3Regular27 Jan 2025#106

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?

4 likes 18mo
YA
y.asanteTL2 Moderator28 Jan 2025#107

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.

12 likes 18mo
SS
steady_stateTL328 Jan 2025#108
NK
n.kuuselaTL2 Moderator29 Jan 2025#109

post #108 answers the question as asked. The question underneath it is different.

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.

26 likes 18mo
NA
n.abernathyTL3Analytical chemist30 Jan 2025#110
t.ibarra, post #4: 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

On post #106 — agreed on the reasoning, with one qualification.

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.

0 likes in reply to #4 18mo
GD
g.danquahTL231 Jan 2025#111
SS
s.stavrianosTL2Member1 Feb 2025#112

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.

17 likes 18mo
SP
s.perrinTL2 Moderator2 Feb 2025#113

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.

7 likes 18mo
GC
glossary_checkTL2Member3 Feb 2025#114
n.norgaard, post #13: This follows post #10 rather than contradicting it. 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

post #113 is right about the mechanism and I think understates the practical bit.

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.

1 like in reply to #13 18mo
LK
l.krastevTL2 Moderator4 Feb 2025#115
glossary_check, post #114: post #113 is right about the mechanism and I think understates the practical bit. 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

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 in reply to #114 18mo
GD
glossary_deskTL3Regular5 Feb 2025#116

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.

24 likes 18mo
AV
a.vestergaardTL2 Moderator5 Feb 2025#117

On post #113 — agreed on the reasoning, with one qualification.

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.

11 likes 18mo
G
GEldridgeTL3Regular6 Feb 2025 · edited#118

post #117 answers the question as asked. The question underneath it is different.

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.

3 likes 18mo
AK
a.krastevTL2 Moderator7 Feb 2025#119

I read post #117 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?

18 likes 18mo
AL
aliquot_lineTL38 Feb 2025#120