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Study of Plozasiran (ARO-APOC3) in Adults With Severe Hypertriglyceridemia

Phase 3
Recruiting
Conditions
Severe Hypertriglyceridemia
Interventions
Drug: Plozasiran Injection
Drug: Placebo
Registration Number
NCT06347003
Lead Sponsor
Arrowhead Pharmaceuticals
Brief Summary

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

Not available

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
405
Inclusion Criteria
  • Established diagnosis of severe hypertriglyceridemia (SHTG) and prior documented evidence (medical history) of fasting TG levels of ≥ 500 mg/dL (≥5.65mmol/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 ≤8.5%
  • Willing to follow diet counseling and maintain a stable low-fat diet
  • Must be on standard of care lipid-lowering medications per local guidelines (unless documented as intolerant as determined by the Investigator)
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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
  • 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
  • Acute pancreatitis within 4 weeks prior to screening
  • Body mass index >45kg/m^2

Note: Additional Inclusion/Exclusion criteria may apply per protocol

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Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Plozasiran InjectionPlozasiran Injection4 doses of plozasiran (ARO-APOC3) by subcutaneous (sc) injection
PlaceboPlacebocalculated volume to match active treatment by sc injection
Primary Outcome Measures
NameTimeMethod
Percent Change in Fasting Serum Triglyceride (TG) Levels from Baseline to Month 12 Compared to PlaceboBaseline, Month 12
Secondary Outcome Measures
NameTimeMethod
Percent Change in Fasting Serum TG Levels from Baseline to Month 10 Compared to PlaceboBaseline, Month 10
Proportion of Participants Who Achieve Fasting TG Levels of <500 mg/dL (<5.65 mmol/L) at Month 10 and Month 12 Compared to PlaceboMonth 10, Month 12
Adjudicated Abdominal Clinical Event Rate (Including Emergency Room Visits or Hospitalizations for Abdominal Pain Attributed to Hypertriglyceridemia and Events of Documented Pancreatitis) During the Treatment Period Compared to Placebo at Month 12Month 12
Proportion of Participants Who Achieve Fasting TG Levels of <150 mg/dL (<1.69 mmol/L) at Month 10 and Month 12 Compared to PlaceboMonth 10, Month 12
Number of Participants with Adverse Events (AEs) and Serious Adverse Events (SAEs) Over Time through Month 12 as Compared to PlaceboFrom first dose of study drug through Month 12
Incidence Rates of New-Onset Diabetes Mellitus (NODM) Throughout the Course of TreatmentFrom first dose of study drug through Month 12
Incidence Rates of Impaired Glucose Tolerance Throughout the Course of TreatmentFrom first dose of study drug through Month 12
Incidence Rates of Worsening of Existing Diabetes Throughout the Course of TreatmentFrom first dose of study drug through Month 12
Change from Baseline in Hemoglobin A1c (HbA1c) During the Treatment Period Compared to PlaceboFrom first dose of study drug through Month 12
Change from Baseline in Fasting Blood Glucose During the Treatment Period Compared to PlaceboFrom first dose of study drug through Month 12
Change from Baseline in C-peptide During the Treatment Period Compared to PlaceboFrom first dose of study drug through Month 12
Change from Baseline in Homeostatic Model Assessment for Insulin Resistance (HOMA-IR) During the Treatment Period Compared to PlaceboFrom first dose of study drug through Month 12
Incidence of Anti-drug Antibodies (ADA) to Plozasiran in Participants Receiving Plozasiran Over Time Through Month 12From first dose of study drug through Month 12
Incidence Rates of Treatment-Emergent Adverse Events (TEAEs) and Treatment-Related Adverse Events (TRAEs) Associated with Worsening Glycemic Control During the Treatment Period Compared to PlaceboFrom first dose of study drug through Month 12
Initiation of New Medication for Hyperglycemia Among Study Participants Not Known to Have Pre-existing Diabetes Mellitus During the Treatment Period Compared to PlaceboFrom first dose of study drug through Month 12
Adjudicated Major Adverse Cardiovascular Events (MACE) Rates During the Treatment Period Compared to PlaceboFrom first dose of study drug through Month 12
Titers of Anti-drug Antibodies (ADA) to Plozasiran in Participants Receiving Plozasiran Over Time Through Month 12From first dose of study drug through Month 12

Trial Locations

Locations (68)

Nova Scotia Health Authority

🇨🇦

Halifax, Canada

Yuncheng Central Hospital

🇨🇳

Yuncheng, Shanxi, China

East Coast Institute for Research, LLC

🇺🇸

Lake City, Florida, United States

East Coast - Institute for Research

🇺🇸

Macon, Georgia, United States

Methodist Physicians Clinic Heart Consultants

🇺🇸

Omaha, Nebraska, United States

Gonzalez Research Institute

🇺🇸

Houston, Texas, United States

Houston Methodist Hospital Department of Medicine Research

🇺🇸

Houston, Texas, United States

National Institute of Clinical Research

🇺🇸

Garden Grove, California, United States

Orange County Research Center

🇺🇸

Lake Forest, California, United States

Catalina Research Institute

🇺🇸

Montclair, California, United States

Velocity Clinical Research, Panorama City

🇺🇸

Panorama City, California, United States

The Cardiovascular Center

🇺🇸

Redding, California, United States

Legacy Clinical Trials

🇺🇸

Colorado Springs, Colorado, United States

Neoclinical Research

🇺🇸

Hialeah, Florida, United States

Panax Clinical Research

🇺🇸

Miami Lakes, Florida, United States

Adult Medicine of Lake County

🇺🇸

Mount Dora, Florida, United States

Florida Institute for Clinical Research

🇺🇸

Orlando, Florida, United States

Baptist Hospital Cardiology

🇺🇸

Pensacola, Florida, United States

TBC Research

🇺🇸

Tamarac, Florida, United States

R & B Medical Center

🇺🇸

Tampa, Florida, United States

Meridian Clinical Research

🇺🇸

Savannah, Georgia, United States

Advocate Lutheran General Hospital

🇺🇸

Park Ridge, Illinois, United States

Ascension Saint Agnes Heart care

🇺🇸

Baltimore, Maryland, United States

Elite Clinical Research Center

🇺🇸

Flint, Michigan, United States

Olive Branch Family Medical Centre

🇺🇸

Olive Branch, Mississippi, United States

Jefferson City Medical Group

🇺🇸

Jefferson City, Missouri, United States

St. Louis Heart and Vascular

🇺🇸

Saint Louis, Missouri, United States

Midwest Regional Health Services LLC

🇺🇸

Omaha, Nebraska, United States

Santa Rosa Medical Centers of Nevada

🇺🇸

Las Vegas, Nevada, United States

CHEAR Center LLC

🇺🇸

Bronx, New York, United States

Endocrine Associates of West Village

🇺🇸

Long Island City, New York, United States

Vestal Velocity Clinical Research

🇺🇸

Vestal, New York, United States

Carteret Medical Group

🇺🇸

Morehead City, North Carolina, United States

The Ohio State University

🇺🇸

Columbus, Ohio, United States

Lynn Institute of Norman

🇺🇸

Norman, Oklahoma, United States

Lynn Health Science Institute

🇺🇸

Oklahoma City, Oklahoma, United States

Cardiovascular Research Center of Knoxville

🇺🇸

Powell, Tennessee, United States

Dr. David Turbay MD PLLC

🇺🇸

El Paso, Texas, United States

Baylor College of Medicine-Center for Cardiometabolic Disease Prevention

🇺🇸

Houston, Texas, United States

Synergy Groups Medical LLC

🇺🇸

Houston, Texas, United States

Clinical Trial Network LLC

🇺🇸

Houston, Texas, United States

PlanIt Research PLLC

🇺🇸

Houston, Texas, United States

Endocrine and Psychiatry Center

🇺🇸

Houston, Texas, United States

Andres Garcia Zuniga MD PA

🇺🇸

Laredo, Texas, United States

Synergy Groups Medical

🇺🇸

Missouri City, Texas, United States

Stryde Research

🇺🇸

Plano, Texas, United States

VIP Trials

🇺🇸

San Antonio, Texas, United States

Discovery Clinical Services

🇨🇦

Victoria, British Columbia, Canada

Centricity Research Brampton Endocrinology

🇨🇦

Brampton, Ontario, Canada

Bluewater Clinical Research Group Inc.

🇨🇦

Sarnia, Ontario, Canada

Clinical Research Solutions Inc.

🇨🇦

Waterloo, Ontario, Canada

Institut de Recherches Cliniques de Montréal

🇨🇦

Montréal, Quebec, Canada

Clinique des Maladies Lipidiques de Québec

🇨🇦

Québec, Quebec, Canada

UMHAT "Pulmed" OOD

🇧🇬

Plovdiv, Bulgaria

MHAT Sv. Sofia, OOD

🇧🇬

Sofia, Bulgaria

UMHAT Sveta Ekaterina

🇧🇬

Sofia, Bulgaria

UMHAT Kaspela, EOOD

🇧🇬

Plovdiv, Bulgaria

Paratus Clinical Research Western Sydney

🇦🇺

Blacktown, New South Wales, Australia

Concord Repatriation General Hospital

🇦🇺

Concord, New South Wales, Australia

Hunter Diabetes Centre and Aim Centre

🇦🇺

Merewether, New South Wales, Australia

Eastern Clinical Research Unit - Endocrinology

🇦🇺

Box Hill, Victoria, Australia

Austin Health

🇦🇺

Heidelberg, Victoria, Australia

De Meulemeester, Marc

🇧🇪

Gozée, Belgium

AZ Sint-Maarten

🇧🇪

Mechelen, Belgium

Respisom

🇧🇪

Namur, Belgium

BVBA Dr. Luc Capiau

🇧🇪

Wetteren, Belgium

Medical Center Medconsult Pleven OOD

🇧🇬

Pleven, Bulgaria

MHAT Heart and Brain

🇧🇬

Pleven, Bulgaria

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