🚨 Real-World GLP-1 Data: Vanderbilt Obesity Clinic Study (n=2,306)
Clinical trials showed 15–21% weight loss with semaglutide & tirzepatide. But how do patients actually fare in practice?
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Key Findings:
📊 Median treatment duration: 10.7 months (50% discontinued by 12 months)
💉 Only 23% reached semaglutide 2.4 mg, 28% reached tirzepatide 15 mg
⚖️ Weight loss for those who continued treatment:
• 6 months: –9.4%
• 12 months: –14.4%
🏥 13.6% had medication-related ER visits (mostly GI side effects)
Context:
This was not a typical setting—patients had multidisciplinary support and NO-COST medication access through employer insurance bundles.
Reality Check:
✅ With the right care model, real-world outcomes can approach RCTs
❌ Most patients never reach target doses
❌ Half stop treatment within a year
A patient asked me this week if they could stop their obesity medication.
I told them what the data says:
67% of people who stop regain almost everything within a year.
That's not a failure of willpower. That's biology. And we finally have trials that prove it.
1/ ECO 2026 just changed the conversation in obesity medicine. For 3 years, every major meeting asked: how much weight can we lose? Istanbul asked something different: how do we keep it? Here's what we learned. 🧵
2/ SURMOUNT-MAINTAIN published in The Lancet this week. After losing 22% of their weight on tirzepatide, patients were randomized to continue full dose, drop to 5 mg, or switch to placebo. The results were unambiguous.
Every morning I take five things.
A statin. Ezetimibe. Psyllium. Creatine. A multivitamin.
Once a week, I add a sixth: tirzepatide.
No rapamycin. No NMN. No Bryan Johnson protocol.
Here's what the evidence actually says—and why I left everything else out. 🧵
1/ Every morning I take five things.
A statin. Ezetimibe. Psyllium. Creatine. A multivitamin.
Once a week, I add a sixth: tirzepatide.
I used to raise an eyebrow at longevity stacks. Then I realized I'd quietly built one—each addition requiring enough evidence to clear the same bar I hold my prescriptions to.
2/ The plaque that ruptures at 62 was building in the third decade or earlier.
New guidelines. Four landmark trials. An oral PCSK9 inhibitor that matches injectables. And data proving we should be treating patients we currently aren't.
Here's everything clinicians need to know. 🧵
1/ The 2026 ACC/AHA Guideline just retired 10-year-old guidance and brought back something crucial: explicit LDL-C numeric targets.
Not "treat to benefit." Treat to a number.
<55 mg/dL for most established ASCVD. <70 for high-risk primary prevention.
Eleven societies signed off.
2/ Ez-PAVE just answered a question cardiology has avoided for years:
Is <55 mg/dL actually BETTER than <70 mg/dL in secondary prevention?
3,048 patients. Head-to-head RCT. The answer:
10 mg/dL difference in achieved LDL → 33% reduction in MACE. NNT ~32 over 3 years.
1⃣ Insurance navigation
Most clinics lack the workflows and staff necessary to obtain prior authorizations efficiently.
Even though >50% of their patients (modest estimate) could qualify for these medications, they can only push through a handful of approvals because:
🔹Prior auth processes are slow and fragmented
🔹There’s little reimbursement to justify hiring dedicated support pmc.ncbi.nlm.nih.gov/articles/PMC11…
2⃣ Clinical infrastructure
These aren’t “set-and-forget” drugs. Patients often need:
🔹Slower titration schedules
🔹Dose adjustments
🔹Ongoing counseling & support
🔹Side-effect management (remember: >50% of users experience side effects)