CI

At a glance

ClinicalIndex Comparison Record
Phase 3Completed· 446 enrolled
Drug / intervention
Olezarsen +1 moredrug
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT05552326
NCT05552326Phase 3Completed

A Randomized, Double-Blind, Placebo-Controlled, Phase 3 Study of Olezarsen (ISIS 678354) Administered Subcutaneously to Patients With Severe Hypertriglyceridemia

Ionis Pharmaceuticals, Inc.·interventional·Posted Sep 23, 2022·Updated Oct 22, 2025

In Brief

A Phase 3 clinical trial evaluating Olezarsen and Placebo for Severe Hypertriglyceridemia. Completed, enrolled 446 participants across 205 sites in 23 countries.

Detailed Summary

The purpose of this study is to evaluate the efficacy of olezarsen as compared to placebo on the percent change in fasting triglycerides (TG) from baseline.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesArgentina, Belgium, Brazil, Bulgaria, Canada, Czechia, France, Greece, Hungary, India, Italy, Lithuania, Malaysia, Mexico, Netherlands, Poland, Portugal, Romania, Slovakia, Spain, Sweden, Taiwan, United States
Collaborators--

Timeline

Phase 3CompletedFinished
2023202420252026
First PostedSep 23, 2022
Enrollment StartAug 31, 2022
Primary CompletionDec 17, 2024
Study CompletionSep 12, 2025
TodayJul 2, 2026
Enrollment to primary: 2.3 yearsPosted 3.8 years ago

Interventions

Olezarsendrug

Olezarsen will be administered by SC injection.

Placebodrug

Olezarsen-matching placebo will be administered by SC injection.