Executive Summary
Dual LDL-C and TG reduction via ANGPTL3 silencing with quarterly dosing
Zodasiran
ANGPTL3 · RNAi (siRNA)
Target: ANGPTL3
Full NameAngiopoietin-like 3
PathwayLipid metabolism - inhibits LPL and endothelial lipase
Mechanism of Action
TypeRNAi (siRNA) via TRiM platform
DescriptionZodasiran silences ANGPTL3 mRNA in hepatocytes, reducing circulating ANGPTL3 protein. This releases inhibition of LPL and endothelial lipase, enabling accelerated clearance of TG-rich and LDL particles.
Indications: Homozygous Familial Hypercholesterolemia (HoFH)Mixed DyslipidemiaASCVD Risk Reduction
Target Biology
ANGPTL3 is a liver-secreted protein that inhibits both lipoprotein lipase (LPL) and endothelial lipase. By silencing ANGPTL3, zodasiran unleashes both enzymes, lowering BOTH triglycerides and LDL-cholesterol.
Human Genetic Evidence: ANGPTL3 LoF mutations associated with lower LDL, lower TGs, reduced CV events (familial combined hypolipidemia)
Clinical Data
Gateway
Phase 2 Active, not recruiting Target n=Zodasiran Phase 3 HoFH
Phase 3 Recruiting Target n=ARCHES-2
n=?Investment Analysis
Satya Bio Analysis — estimates based on public data and analyst judgment, not sourced from company materials
Bull Case
| Thesis Point | Supporting Evidence | Confidence |
|---|---|---|
| ANGPTL3 is genetically validated | LOF mutations show low LDL, low TGs, reduced CV events | High |
| Dual LDL-C (65%) and TG (70%) reduction with quarterly dosing | ARCHES-2 Phase 2 data | High |
| Superior to evinacumab | 65% vs 47% LDL-C reduction, quarterly SC vs monthly IV | Medium - Different Patient Populations |
Bear Case
| Risk | Evidence | Mitigating Factors |
|---|---|---|
| Crowded lipid market | Statins and PCSK9 inhibitors already available | Different mechanism, additive benefit for high-risk patients |
| Evinacumab already approved for HoFH | Regeneron has first-mover advantage | Zodasiran more efficacious, more convenient dosing |
| Quarterly injection vs daily statin | Convenience advantage over biologics, not oral drugs | For severe patients already on injections, quarterly is improvement |
Key Debates
| Question | Bull View | Bear View | Resolution Catalyst |
|---|---|---|---|
| Can zodasiran demonstrate CV outcomes benefit? | Genetic validation strong; dual lipid lowering may be superior | CV outcomes trials expensive and long; may not be conducted | Phase 3 HoFH data, potential outcomes study |
Market Opportunity
Catalysts & Upcoming Events
| Event | Timing | Importance | Key Metrics to Watch | Consensus |
|---|---|---|---|---|
| Phase 3 HoFH data | 2026-2027 | Critical | LDL-C reduction vs placebo in HoFH | — |
| Zodasiran Phase 3 HoFH data | 2026-2027 | high | — | — |