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zodasiran

Phase 3

Homozygous Familial Hypercholesterolemia | RNA therapy | Metabolic |Arrowhead Pharmaceuticals, Inc.|Trials Updated: Oct 6, 2026

zodasiran development status

Highest phase Phase 3
Registered trials 5 across 2 sponsors since Nov 2018

zodasiran target and mechanism

Molecular targetANGPTL3
Target class-Siran (Sirna)
ModalityRNA therapy

Also known as zodasiran Injection, ARO-ANG3, VSA003

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials6
Total Enrollment459

FDA Designations

No designations recorded

zodasiran clinical trials

zodasiran · 6 trials · 6 indications

Phase 3 3Phase 2 1Phase 1 2
NCT07473843Study of Zodasiran in Adolescent Participants With Homozygous Familial HypercholesterolemiaHomozygous Familial Hypercholesterolemia
RECRUITING10 Analytics
NCT07037771A Phase 3 Study of Zodasiran in Adolescent and Adult Subjects With Homozygous Familial Hypercholesterolemia (YOSEMITE)Homozygous Familial Hypercholesterolemia
ACTIVE NOT_RECRUITING70 Analytics
NCT06712771A Phase 3 Clinical Trial to Evaluate the Efficacy and Safety of VSA003 in Chinese HoFH PatientsHomozygous Familial Hypercholesterolemia (HoFH)
ACTIVE NOT_RECRUITING46 Analytics
PHASE3RECRUITING
Study of Zodasiran in Adolescent Participants With Homozygous Familial Hypercholesterolemia
Homozygous Familial HypercholesterolemiaUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
A Phase 3 Study of Zodasiran in Adolescent and Adult Subjects With Homozygous Familial Hypercholesterolemia (YOSEMITE)
Homozygous Familial HypercholesterolemiaUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
A Phase 3 Clinical Trial to Evaluate the Efficacy and Safety of VSA003 in Chinese HoFH Patients
Homozygous Familial Hypercholesterolemia (HoFH)Unlock trial analytics

Study Endpoints

Primary Endpoints

Percent Change from Baseline to Month 12 in Fasting LDL-C
Baseline, Month 12
Percent Change from Baseline to Month 12 in Fasting Low Density Lipoprotein Cholesterol (LDL-C) (Randomized period)
Baseline, Month 12
Percent change from baseline in serum LDL-C at month 6
At month 6
Percent Change From Baseline in Fasting TG at Week 24
Baseline, Week 24
Frequency and severity of adverse event (AE) and serious adverse event (SAE)
Up to 85±3 days post-dose

safety and tolerability

Number of Participants with Adverse Events (AEs) Possibly or Probably Related to Treatment
Up to 113 (+/- 3 days) post-dose

Secondary Endpoints

Percent Change from Baseline to Month 12 in Fasting Apolipoprotein B (ApoB)
Baseline, Month 12
Change from Baseline to Month 12 in Fasting ApoB
Baseline, Month 12
Percent Change from Baseline to Month 12 in Fasting Non-High Density Lipoprotein Cholesterol (non-HDL-C)
Baseline, Month 12
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
ZodasiranEXPERIMENTAL -
PlaceboPLACEBO_COMPARATORCalculated volume to match active treatment by sc injection (randomized period). 4 or 5 doses of zodasiran by sc injection (optional open-label period)
VSA003EXPERIMENTALsubcutaneous injections
ARO-ANG3 50 mgEXPERIMENTALTwo doses of ARO-ANG3 by subcutaneous (sc) injection at Day 1 and Week 12 during double-blind treatment period. Up to 8 doses of ARO-ANG3 by sc injection during the open-label extension period.
ARO-ANG3 100 mgEXPERIMENTALTwo doses of ARO-ANG3 bysc injection at Day 1 and Week 12 during double-blind treatment period. Up to 8 doses of ARO-ANG3 by sc injection during the open-label extension period.
ARO-ANG3 200 mgEXPERIMENTALTwo doses of ARO-ANG3 by sc injection at Day 1 and Week 12 during double-blind treatment period. Up to 8 doses of ARO-ANG3 by sc injection during the open-label extension period.
ARO-ANG3EXPERIMENTAL -

Interventions

NameTypeDescription
ZodasiranDRUGBy sc injection
zodasiran InjectionDRUGARO-ANG3 Injection
PlaceboDRUGsterile normal saline (0.9% NaCl)
VSA003DRUGsubcutaneous injections
ARO-ANG3DRUGARO-ANG3 Injection
0.9% NaClDRUGplacebo
sterile normal saline (0.9% NaCl)DRUGcalculated volume to match active treatment
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Eligibility Criteria

Age Range12 Years to 17 Years
SexALL
Healthy VolunteersNo
Study Sites2

Inclusion Criteria: * Adolescents 12 to \<18 years of age who are nonpregnant, nonlactating, and do not plan to become pregnant during the study * Body weight ≥35 kilograms (kg) at screening * HoFH based on a supportive genetic test (from a source-verifiable medical record or based on screening gen...

Countries:United StatesDenmarkAustraliaAustriaBelgiumBrazilCanadaCzechiaFranceGeorgiaGermanyIsraelJapanNew ZealandSaudi ArabiaSouth AfricaSpainSwedenTurkey (Türkiye)China
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Recent Changes (Last 90 Days)

LOWOct 6, 2026NCT07473843Status: NOT_YET_RECRUITING → RECRUITING
LOWOct 6, 2026NCT07473843Status: NOT_YET_RECRUITING → RECRUITING
LOWSep 30, 2026NCT07473843Enrollment: 12 → 10
LOWSep 30, 2026NCT07473843Enrollment: 12 → 10
MEDIUMAug 12, 2026NCT07037771Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMAug 12, 2026NCT07037771Status: RECRUITING → ACTIVE_NOT_RECRUITING

Frequently asked questions about zodasiran

What is zodasiran used for?

Zodasiran is an investigational RNA therapy being developed for homozygous familial hypercholesterolemia, a severe inherited condition marked by very high LDL cholesterol from birth. It is in Phase 3 clinical development and has not been approved by the FDA. It is being studied in adolescents and adults aged 12 years and older.

How does zodasiran work?

Zodasiran is a small interfering RNA (siRNA) therapy that targets ANGPTL3. By reducing production of the ANGPTL3 protein, it aims to lower cholesterol levels. This mechanism is distinct from statins and other lipid-lowering drugs that act on different pathways.

Who is developing zodasiran?

Zodasiran is being developed by Arrowhead Pharmaceuticals, Inc., which trades on the Nasdaq under the ticker ARWR. Arrowhead specializes in RNA interference therapeutics and is running the Phase 3 clinical program for this candidate.

What phase is zodasiran in?

Zodasiran is in Phase 3 clinical development. Two Phase 3 trials are ongoing: one recruiting adolescents and one active but not recruiting adolescents and adults. The drug is investigational and has not received FDA approval.

What clinical trials is zodasiran in?

Zodasiran is being evaluated in two Phase 3 trials: NCT07473843, a study in adolescent participants with homozygous familial hypercholesterolemia, and NCT07037771, known as YOSEMITE, in adolescent and adult subjects. Both are randomized, double-blind, and placebo-controlled, with a combined planned enrollment of 80 participants.

Is zodasiran the same as zodasiran Injection?

Yes, zodasiran Injection is an alternative name for zodasiran. Both refer to the same investigational RNA therapy developed by Arrowhead Pharmaceuticals for homozygous familial hypercholesterolemia.