Thread by @Neuroscope_mp

🚨 BREAKING Scientists just gave 15 people a single IV drip.
No daily pills.
No monthly injections.
One time.
Done.

Their "bad" cholesterol dropped 50%.
Triglycerides dropped 55%.

And it may be PERMANENT.

This is CRISPR — and it just changed cardiology forever. 🧵

The drug is called CTX310.
It's made by CRISPR Therapeutics.

Here's how it works in plain English:
Your liver makes a protein called ANGPTL3.
That protein BLOCKS your body from clearing cholesterol.

CTX310 turns that gene OFF.
Permanently.

Like flipping a switch — and never having to flip it again. 🔬

Here's the wild part.

Some people are BORN with a broken ANGPTL3 gene.
What happens to them?
✅ Lifelong low cholesterol
✅ Lifelong low triglycerides
✅ Dramatically lower heart disease risk
❌ No harmful side effects

Scientists thought: what if we could give EVERYONE that mutation?

That's exactly what CTX310 does. 🧬

The clinical trial results were published in the New England Journal of Medicine.
15 patients.
All had cholesterol disorders that DIDN'T respond to standard drugs.
After ONE infusion:
📉 LDL cholesterol: DOWN 49% (max -87%)
📉 Triglycerides: DOWN 55% (max -84%)
📉 ANGPTL3 protein: DOWN 73% (max -89%)

Effects kicked in within 2 WEEKS.
Still holding at 60 days follow-up.

How does CRISPR even get INTO your liver cells?

The secret: Lipid Nanoparticles (LNPs).

Tiny fat bubbles — the same tech used in mRNA COVID vaccines.

They carry the CRISPR editing tools directly to liver cells.

Once inside:
• Cas9 enzyme cuts the ANGPTL3 gene
• The cell tries to repair the cut
• The repair breaks the gene — permanently

One infusion.
Done.
The liver keeps the edit for life.

Let me put this in perspective.
Current cholesterol treatments:
💊 Statins → Take EVERY DAY
💉 PCSK9 injections → Every 2–4 WEEKS
💉 Inclisiran → Twice a YEAR
CTX310: 💉 Once.

Possibly FOREVER.
And it's the ONLY treatment that simultaneously drops both LDL AND triglycerides in one shot.

Nothing else does that.

Now — let's talk about safety. Because this matters.

The honest picture:

✅ No treatment-related serious adverse events
✅ No dangerous liver enzyme spikes
✅ No dose-limiting toxicities

⚠️ 3 patients had minor infusion reactions (nausea, back pain) — resolved quickly
⚠️ 1 patient had a brief liver enzyme bump — back to normal in 14 days

2 serious events occurred — but BOTH were ruled unrelated to CTX310. Early data. Promising. But more study is needed.

Here's what nobody is talking about enough.
The FDA requires 15 YEARS of safety follow-up for all CRISPR gene therapies.

Why?
Because editing DNA is irreversible.
If something goes wrong — you can't un-edit a gene.

We don't know:
❓ Will the effect last 10, 20, 30 years?
❓ Could there be off-target DNA edits?
❓ Long-term cancer risk?

This is why Phase 2 & 3 trials matter enormously.

Who is this designed for right now?
The Phase 1 trial enrolled:
🔴 Homozygous Familial Hypercholesterolemia — inherited extreme high LDL
🔴 Severe Hypertriglyceridemia — dangerously high triglycerides
🔴 Mixed Dyslipidemia — both LDL AND triglycerides elevated
🔴 All had FAILED standard treatments

40+ million Americans have elevated LDL, high triglycerides, or both.

If this scales — the potential is enormous.

So what happens next?
📍 Phase 1b trials:
NOW ENROLLING → Focused on severe hypertriglyceridemia + mixed dyslipidemia
→ Larger groups, longer follow-up 📍

Phase 2 trials: Expected ~late 2026 📍

Hard outcomes trials (heart attacks? strokes? mortality?) — Years away. T

his isn't a treatment you can get yet. But the door just opened in a way it never has before.

Watch ClinicalTrials.gov for updates. 👇

Step back and think about what this really means.

CRISPR was supposed to be for rare diseases.
Sickle cell.
Muscular dystrophy.
One in a million.

Now it's targeting the #1 killer of humans on earth … Heart disease.

If CTX310 works in large trials — we're not talking about treating millions.

We're talking about potentially PREVENTING heart disease with a single infusion.

The science fiction future just got a lot closer.

If you found this thread valuable:
♻️ Retweet the first tweet — someone you know needs to see this
❤️ Follow for more medical breakthroughs explained simply
🔖 Bookmark this thread — this story is just getting started

⚠️ IMPORTANT: CTX310 is NOT available yet.
It's investigational.
Talk to a cardiologist about YOUR cholesterol options TODAY.

Screenshots to the actual peer-reviewed trial and all sources in this thread. 🔬🧬