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A Study of Olezarsen (Formerly Known as AKCEA-APOCIII-LRx) in Participants With Familial Chylomicronemia Syndrome (FCS)

Phase 3
Active, not recruiting
Conditions
Familial Chylomicronemia Syndrome
Interventions
Registration Number
NCT05130450
Lead Sponsor
Ionis Pharmaceuticals, Inc.
Brief Summary

The purpose of this study is to evaluate the effect of olezarsen (formerly known as AKCEA-APOCIII-LRx) on the percent change in fasting triglycerides (TG) from baseline.

Detailed Description

This is a multi-center, open-label extension (OLE) study of up to 60 participants with FCS rolling-over from Study ISIS 678354-CS3 (NCT04568434). Participants will receive olezarsen during a 157-week treatment period, followed by a 13-week post-treatment follow-up period. The length of participation in this study is approximately 201 weeks, which includes an up to 31-day qualification period, a 157-week treatment period, and a 13-week post-treatment evaluation period.

Treatment has been extended to obtain additional safety assessments and efficacy data and to provide patients with continued access to ISIS 678354 until the drug may be available commercially.

Recruitment & Eligibility

Status
ACTIVE_NOT_RECRUITING
Sex
All
Target Recruitment
60
Inclusion Criteria

• Satisfactory completion of treatment with olezarsen in the index study (ISIS 678354-CS3, last dose as scheduled at Week 49) with an acceptable safety profile, per Investigator judgement.

Exclusion Criteria

• Have any new condition or worsening of existing condition which in the opinion of the Investigator would make the participant unsuitable for enrollment, or could interfere with the patient participating in or completing the study, including need for treatment with medications disallowed in the index study (ISIS 678354-CS3).

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
OlezarsenOlezarsenOlezarsen will be administered once every 4 weeks by subcutaneous (SC) injection from Week 1 through Week 153.
Primary Outcome Measures
NameTimeMethod
Percent Change From Baseline in Fasting TG at 6 Months (Average of Weeks 23, 25, and 27) Compared to BaselineBaseline and 6 months
Secondary Outcome Measures
NameTimeMethod
Percent Change From Baseline in Fasting Apolipoprotein 48 (apoB48) at 6 MonthsAt 6 months
Percentage of Participants Who Achieve Fasting TG ≤ 880 mg/dL at 12, 24, 36 monthsAt 12, 24, 36 months
Percentage of Participants Who Achieve ≥ 70% Reduction in Fasting TG From Baseline at 6 MonthsAt 6 months
Percent Change in Fasting non-HDL-C from Months 12, 24, 36At 12, 24, 36 months
Adjudicated Acute Pancreatitis Event Rate During the Treatment Period in Participants With ≥ 2 Events of Adjudicated Acute Pancreatitis in 5 Years Prior to Treatment With Study Drug in the Index StudyWeek 1 through Week 157
Adjudicated Acute Pancreatitis Event Rate During the Treatment PeriodWeek 1 through Weeks 53, 105, or 157
Percent Change in Fasting apoC-III from Baseline at Month 6Baseline and 6 months
Percentage of Participants Who Achieve Fasting TG ≤ 880 milligrams per deciliter (mg/dL) at 6 MonthsAt 6 months
Adjudicated Acute Pancreatitis Event Rate During the Treatment Period in Patients with a Prior History of Pancreatitis within 10 Years Prior to Screening in the Index StudyWeek 1 through Weeks 53, 105, or 157
Percentage of Participants Who Achieve Fasting TG ≤ 500 mg/dL at 12, 24, 36 MonthsAt 12, 24, 36 months
Percent Change From Baseline in Fasting apoB48 at 12, 24, 36 MonthsAt 12, 24, 36 months
Percentage of Participants Who Achieve ≥ 70% Reduction in Fasting TG From Baseline at 12, 24, 36 MonthsAt 12, 24, 36 months
Percentage of Participants Who Achieve Fasting TG ≤ 500 mg/dL at 6 MonthsAt 6 months
Percent Change From Baseline in Fasting TG at 12 Months (Average of Weeks 51 and 53) at 24 Months (Average of Week 103 and Week 105) and 36 Months (Average of Week 155 and Week 157)Baseline and 36 months
Percentage of Participants Who Achieve ≥ 40% Reduction in Fasting TG From Baseline at 6 MonthsAt 6 months
Percentage of Participants Who Achieve ≥ 40% Reduction in Fasting TG From Baseline at 12, 24, 36 MonthsAt 12, 24, 36 months
Percent Change in Fasting apoC-III from Month 12, 24, 36At 12, 24, 36 months
Percent Change in Fasting non-HDL-C from Baseline at Month 6Baseline and 6 months

Trial Locations

Locations (27)

Hospital Universitario 12 de Octubre

🇪🇸

Madrid, Spain

University of Kansas Medical Center (KUMC)

🇺🇸

Kansas City, Kansas, United States

IDS Central

🇺🇸

Philadelphia, Pennsylvania, United States

Hôpital Bicêtre

🇫🇷

Le Kremlin-Bicêtre, France

Academisch Medisch Centrum Goederenontvangst Apotheek t.a.v. Kenniscentrum

🇳🇱

Amsterdam, Noor-Holland, Netherlands

Hospital da Senhora da Oliveira Guimaraes

🇵🇹

Creixomil, Portugal

Excel Medical Clinical Trials, LLC

🇺🇸

Boca Raton, Florida, United States

Via Sergio Pansini 5

🇮🇹

Napoli, Italy

Azienda Ospedaliero Universitaria Policlinico Umberto I

🇮🇹

Rome, Italy

Clinique des Maladies Lipidiques de Quebec Inc.

🇨🇦

Québec, Quebec, Canada

Pharmacie Hopital de la Conception

🇫🇷

Marseille, France

UOC di Farmacia AOUP PAOLO GIACCONE

🇮🇹

Palermo, Italy

Oslo Hospital Pharmacy Rikshospitalet

🇳🇴

Oslo, Norway

Dra Margarida Falcao Centro Hospitalar Lisboa Ocidental Hospital Egas Moniz

🇵🇹

Lisboa, Portugal

Ecogene-21

🇨🇦

Chicoutimi, Quebec, Canada

Nathalie Saint-Pierre

🇨🇦

Montréal, Quebec, Canada

Diabetes/Lipid Management & Research Center

🇺🇸

Huntington Beach, California, United States

Department of Pharmacy

🇺🇸

Park Ridge, Illinois, United States

CTSI Investigational Pharmacy

🇺🇸

New York, New York, United States

Milstein Hospital

🇺🇸

New York, New York, United States

Institute de Recherches Cliniques de Montreal

🇨🇦

Montreal, Quebec, Canada

Groupement Hospitalier Est- Pharmacie Secteur Essais Clinique

🇫🇷

Bron, France

Metabolicke centrum MU

🇸🇰

Bratislava, Slovakia

Hospital Clínic Barcelona C/ Villarroel

🇪🇸

Barcelona, Spain

Apokteket AB

🇸🇪

Malmö, Sweden

Hospital Universitario Virgen del Rocío

🇪🇸

Sevilla, Spain

Royal Manchester Children's Hospital

🇬🇧

Manchester, United Kingdom

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