🍪 CompoundTalk uses cookies to improve your experience, analyze traffic, and personalize content. By continuing to use this site, you agree to our Cookie Policy.
Evidence-based GLP-1 & peptide discussion since 2023
ForumsCardiovascular OutcomesCoronary artery calcium score changes on GLP-1 — 2-year follow-up

Coronary artery calcium score changes on GLP-1 — 2-year follow-up

Dr.RaviCardio Thu, May 28, 2026 at 5:26 PM 14 replies 356 viewsPage 1 of 3
Dr.RaviCardio
VIP Member
2,890
15,678
Jan 2024
New York, NY
May 28, 2026 at 5:26 PM#1

Putting this up for argument rather than for agreement. I have read it twice and I am still not certain what it supports.

SELECT is the trial that changed the framing of this class, because it was an outcome trial rather than a weight trial: about a 20% relative reduction in major adverse cardiovascular events in people with established cardiovascular disease and overweight or obesity, without diabetes. The effect appeared earlier than the weight-loss curve can comfortably explain, which is the basis for arguing that some of the benefit is direct — anti-inflammatory and vascular — rather than purely a consequence of weight.

Where I think it is weakest: the subgroup findings are the part I trust least — with enough subgroups something is always significant, and these were not all pre-registered.

So the question, as narrowly as I can put it: how much of the SELECT benefit is plausibly independent of the weight loss, and whether that distinction changes anything practical. If the honest answer is that nobody knows, that is a useful answer and I would rather have it.

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.
39 9pete_manc_UK, anna.melb_AU, mark_tokyo and 36 others
Reply Quote Save Share Report
BariatricNurseD
Senior Member
1,678
7,234
Feb 2024
Dallas, TX
Online
May 28, 2026 at 5:34 PM#2
Dr.RaviCardio said:
SELECT is the trial that changed the framing of this class, because it was an outcome trial rather than a weight trial: about a 20% relative reduction…

SUSTAIN-6 was the first CVOT to show cardiovascular benefit with semaglutide, relevant to cardiovascular risk. In 3,297 T2DM patients with high CV risk: MACE HR 0.74 (95% CI 0.58-0.95, p=0.02)[1].

Notable: the retinopathy signal in SUSTAIN-6 (HR 1.76) was subsequently attributed to rapid A1C reduction in patients with pre-existing retinopathy — not a direct drug effect. This has been confirmed in longer-term follow-up studies.

References:
[1] Marso SP, et al. N Engl J Med. 2016;375(19):1834-1844.
38 8roxy_nash, tony_orlando, Dr.NephBHM_UK and 35 others
Reply Quote Save Share Report
BenResearch_OR
Senior Member
2,456
11,234
Dec 2023
Oregon
May 28, 2026 at 5:42 PM#3
Dr.RaviCardio said:
SELECT is the trial that changed the framing of this class, because it was an outcome trial rather than a weight trial: about a 20% relative reduction…

This is where I part company with the consensus forming above. The "earlier than weight loss explains" argument is weaker than this thread makes it sound. Blood pressure and inflammatory markers move fast and are downstream of early weight loss, so the mechanism is not as cleanly separable as the summaries imply.

37 7Dr.NateNeph, PharmD_Rodriguez, julia.endo and 34 others
Reply Quote Save Share Report

Janoshik Analytical — Independent Testing

Trusted third-party HPLC & mass spectrometry analysis. Verify peptide purity with the lab the community relies on. Independent. Accurate. Transparent.

Verify Your Peptides

GL Biochem (Shanghai) Ltd. — Direct Manufacturer

Est. 1998. The synthesis house behind the vials you send for testing. ISO 9001 and cGMP certified, 1,500+ staff, batch-specific COA with every order.

Browse GL Biochem
sarah_TO
Member
278
1,234
Sep 2024
Toronto, CA
May 28, 2026 at 5:50 PM#4
BenResearch_OR said:
The "earlier than weight loss explains" argument is weaker than this thread makes it sound.
BenResearch_OR said:
...cardiovascular risk is just another fad...

I understand the skepticism — we've all seen "miracle" weight loss solutions come and go. But consider what makes GLP-1 agonists different:

  • Phase 3 RCTs with thousands of participants (not 20-person pilot studies)
  • Published in NEJM, JAMA, Lancet (not press releases)
  • Replicated across multiple independent research groups
  • Proven cardiovascular and renal benefits beyond weight loss
  • Biological mechanism fully characterized at the receptor level

This isn't a fad — it's a new drug class supported by the highest level of clinical evidence. The comparison to past fads is understandable but inappropriate.

Last edited: May 28, 2026 at 9:50 PM
36 6carl_compliance, DanielChem_CHI, marco_milano and 33 others
Reply Quote Save Share Report
SandraNC_45
Member
312
1,345
Sep 2024
Charlotte, NC
May 28, 2026 at 6:32 PM#5
BariatricNurseD said:
SUSTAIN-6 was the first CVOT to show cardiovascular benefit with semaglutide, relevant to cardiovascular risk.

Can confirm. Same sequence, different timescale.

Last edited: May 28, 2026 at 11:32 PM
35 5Dr.PainCLE, mike_mealprep, NicoleRaleigh and 32 others
Reply Quote Save Share Report

Similar Threads

SELECT trial: 20% MACE reduction — mechanistic deep dive7 replies
Semaglutide cardiovascular benefit independent of weight loss11 replies
STEP-HFpEF: semaglutide in heart failure with preserved EF15 replies
GLP-1 and arterial inflammation — hsCRP and IL-6 reduction data18 replies
Lp(a) on GLP-1 agonists — any impact on this risk factor?8 replies
ForumsNewTrendingMembersAccount

Log In

Forgot password?
No account? Register