Study of Plozasiran in Adults With Severe Hypertriglyceridemia

NCT ID: NCT06347016

Last Updated: 2025-10-24

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE3

Total Enrollment

311 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-07-23

Study Completion Date

2026-09-30

Brief Summary

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This Phase 3 study will evaluate the safety and efficacy of plozasiran injection (ARO-APOC3) in adult participants with severe hypertriglyceridemia (SHTG). After providing informed consent eligible participants will be randomized to receive 4 doses (once every 3 months) of plozasiran or placebo, and be evaluated for efficacy and safety. After Month 12, eligible participants will be offered an opportunity to continue in an optional open-label extension under a separate protocol.

Detailed Description

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Conditions

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Severe Hypertriglyceridemia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Plozasiran Injection

4 doses of plozasiran (ARO-APOC3) by subcutaneous (sc) injection

Group Type EXPERIMENTAL

Plozasiran Injection

Intervention Type DRUG

ARO-APOC3 Injection

Placebo

calculated volume to match active treatment by sc injection

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

sterile normal saline (0.9% NaCl)

Interventions

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Plozasiran Injection

ARO-APOC3 Injection

Intervention Type DRUG

Placebo

sterile normal saline (0.9% NaCl)

Intervention Type DRUG

Other Intervention Names

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ARO-APOC3

Eligibility Criteria

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Inclusion Criteria

* Established diagnosis of severe hypertriglyceridemia (SHTG) and prior documented evidence (medical history) of fasting TG levels of ≥500 mg/dL (≥5.65 mmol/L)
* Mean fasting TG level ≥500 mg/dL (≥5.65 mmol/L) collected at 2 separate and consecutive visits at least 7 days apart and no more than 17 days apart during the screening period
* Fasting low density lipoprotein-cholesterol (LDL-C) ≤130 mg/dL (≤3.37 mmol/L) at screening
* Screening HbA1C ≤9.0%
* Must be on standard of care lipid-lowering medications per local guidelines (unless documented as intolerant as determined by the Investigator, including an inability to safely administer or re-administer a specific drug because of fear, preference, genetic, clinical, or metabolic considerations, or due to a previous adverse reaction associated with, attributed to, or caused by specific drug)

Exclusion Criteria

* Use of any hepatocyte-targeted small interfering ribonucleic acid (siRNA) that targets lipids and/or triglycerides within 365 days before Day 1 (except inclisiran, which is permitted). Administration of investigational drug and inclisiran must be separated by at least 4 weeks
* Use of any other hepatocyte-targeted siRNA or antisense oligonucleotide molecule within 60 days or within 5-half-lives before Day 1 based on plasma pharmacokinetics (PK), whichever is longer (except inclisiran, which is permitted)
* Known diagnosis of familial chylomicronemia syndrome (FCS) (type 1 Hyperlipoproteinemia) by documentation of confirmed homozygote or double heterozygote for loss-of-function mutations in type 1- causing genes
* Body mass index \>45kg/m\^2
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Arrowhead Pharmaceuticals

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Research Site 1

Birmingham, Alabama, United States

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Research Site 2

Mobile, Alabama, United States

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Research Site 3

Beverly Hills, California, United States

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Research Site 4

Canoga Park, California, United States

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Research Site 5

Huntington Beach, California, United States

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Research Site 6

Lincoln, California, United States

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Long Beach, California, United States

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Research Site 8

Oxnard, California, United States

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Research Site 9

Clearwater, Florida, United States

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Research Site 10

North Miami, Florida, United States

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Research Site 11

Sarasota, Florida, United States

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Research Site 12

Lawrenceville, Georgia, United States

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Research Site 13

Sugar Hill, Georgia, United States

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Research Site 14

Elkhart, Indiana, United States

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Research Site 15

Indianapolis, Indiana, United States

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Research Site 16

South Bend, Indiana, United States

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Research Site 17

Overland Park, Kansas, United States

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Research Site 18

Topeka, Kansas, United States

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Research Site 19

Metairie, Louisiana, United States

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Research Site 20

Annapolis, Maryland, United States

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Jackson, Mississippi, United States

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Fremont, Nebraska, United States

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Norfolk, Nebraska, United States

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Morristown, New Jersey, United States

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New York, New York, United States

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Riverhead, New York, United States

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The Bronx, New York, United States

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Research Site 28

Asheboro, North Carolina, United States

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Wilmington, North Carolina, United States

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Research Site 30

Beavercreek, Ohio, United States

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Columbus, Ohio, United States

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Research Site 32

Oklahoma City, Oklahoma, United States

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Research Site 33

Horsham, Pennsylvania, United States

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Research Site 34

Newport, Pennsylvania, United States

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Research Site 35

Philadelphia, Pennsylvania, United States

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Research Site 36

Philadelphia, Pennsylvania, United States

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Research Site 37

Fort Mill, South Carolina, United States

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Research Site 38

Greenville, South Carolina, United States

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Research Site 39

Chattanooga, Tennessee, United States

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Research Site 40

Fort Worth, Texas, United States

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Houston, Texas, United States

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Houston, Texas, United States

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Houston, Texas, United States

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Research Site 44

Sugar Land, Texas, United States

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Research Site 45

Tomball, Texas, United States

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Research Site 46

Victoria, Texas, United States

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Research Site 47

Bountiful, Utah, United States

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Research Site 48

St. George, Utah, United States

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Research Site 49

Manassas, Virginia, United States

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Roanoke, Virginia, United States

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Research Site 52

CABA, Buenos Aires, Argentina

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Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina

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Research Site 54

Córdoba, Córdoba Province, Argentina

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Research Site 53

Godoy Cruz, Mendoza Province, Argentina

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Research Site 55

Rosario, Santa Fe Province, Argentina

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Research Site 61

Salvador, Estado de Bahia, Brazil

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Research Site 56

Brasília, Federal District, Brazil

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Research Site 59

Belo Horizonte, Minas Gerais, Brazil

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Research Site 62

Aracaju, Sergipe, Brazil

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Research Site 57

Campinas, São Paulo, Brazil

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Research Site 58

Santo André, São Paulo, Brazil

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Research Site 60

São José do Rio Preto, São Paulo, Brazil

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Research Site 63

Recife, , Brazil

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Research Site 64

Byala, , Bulgaria

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Research Site 65

Dimitrovgrad, , Bulgaria

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Research Site 66

Haskovo, , Bulgaria

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Research Site 67

Kyustendil, , Bulgaria

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Research Site 68

Rousse, , Bulgaria

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Research Site 69

Sevlievo, , Bulgaria

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Research Site 76

Sofia, , Bulgaria

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Research Site 70

Sofia, , Bulgaria

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Research Site 73

Sofia, , Bulgaria

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Research Site 71

Sofia, , Bulgaria

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Research Site 75

Sofia, , Bulgaria

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Research Site 72

Sofia, , Bulgaria

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Sofia, , Bulgaria

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Research Site 77

Stara Zagora, , Bulgaria

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Research Site 78

North Vancouver, British Columbia, Canada

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Research Site 79

Chicoutimi, Quebec, Canada

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Research Site 80

Laval, Quebec, Canada

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Québec, Quebec, Canada

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Terrebonne, Quebec, Canada

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Brno, , Czechia

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Náchod, , Czechia

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Olomouc, , Czechia

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Prague, , Czechia

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Slaný, , Czechia

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Teplice, , Czechia

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Trutnov, , Czechia

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Research Site 91

Marseille, Bouches-du-Rhône, France

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Research Site 92

Pessac, Gironde, France

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Research Site 93

Bayonne, Pyrenees Atlantiques, France

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Research Site 94

Lyon, Rhone, France

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Research Site 90

Paris, , France

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Research Site 95

Deggingen, Baden-Wurttemberg, Germany

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Research Site 96

Wallerfing, Bavaria, Germany

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Research Site 97

Magdeburg, Saxony-Anhalt, Germany

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Research Site 98

Berlin, State of Berlin, Germany

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Békéscsaba, , Hungary

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Kaposvár, , Hungary

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Miskolc, , Hungary

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Pécs, , Hungary

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Pécs, , Hungary

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Zalaegerszeg, , Hungary

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Research Site 107

Daugavpils, , Latvia

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Daugavpils, , Latvia

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Daugavpils, , Latvia

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Kuldīga, , Latvia

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Riga, , Latvia

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Riga, , Latvia

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Riga, , Latvia

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Tukums, , Latvia

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Kaunas, , Lithuania

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Kaunas, , Lithuania

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Kaunas, , Lithuania

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Šiauliai, , Lithuania

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Vilnius, , Lithuania

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Vilnius, , Lithuania

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Christchurch, , New Zealand

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New Plymouth, , New Zealand

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Newtown, , New Zealand

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Bydgoszcz, , Poland

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Gdynia, , Poland

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Katowice, , Poland

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Lodz, , Poland

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Malbork, , Poland

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Szczecin, , Poland

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Torun, , Poland

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Wroclaw, , Poland

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Zamość, , Poland

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Bratislava, , Slovakia

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Nové Zámky, , Slovakia

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Prešov, , Slovakia

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Rožňava, , Slovakia

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Research Site 135

Centurion, Gauteng, South Africa

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Research Site 136

Krugersdorp, Gauteng, South Africa

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Research Site 137

Pretoria, Gauteng, South Africa

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Research Site 138

Durban, KwaZulu-Natal, South Africa

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Research Site 144

Cape Town, Western Cape, South Africa

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Research Site 139

Cape Town, Western Cape, South Africa

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Research Site 140

Cape Town, Western Cape, South Africa

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Research Site 143

Cape Town, Western Cape, South Africa

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Research Site 145

Cape Town, Western Cape, South Africa

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Research Site 146

Mossel Bay, Western Cape, South Africa

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Research Site 142

Plettenberg Bay, Western Cape, South Africa

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Research Site 141

Somerset West, Western Cape, South Africa

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Research Site 149

A Coruña, La Coruña, Spain

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Research Site 147

Madrid, , Spain

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Research Site 148

Seville, , Spain

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Countries

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United States Argentina Brazil Bulgaria Canada Czechia France Germany Hungary Latvia Lithuania New Zealand Poland Slovakia South Africa Spain

Other Identifiers

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2023-509301-80

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

AROAPOC3-3004

Identifier Type: -

Identifier Source: org_study_id

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