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ISIS 678354-CS6 A Randomized, Double-Blind, Placebo-Controlled, Phase 3 Study of Olezarsen (ISIS 678354) Administered Subcutaneously to Patients with Severe Hypertriglyceridemia

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2022-501420-20-00
Acronym
ISIS 678354-CS6
Enrollment
248
Registered
2023-03-28
Start date
2023-05-17
Completion date
2025-09-12
Last updated
2025-09-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Severe hypertryglyceridemia

Brief summary

Percent Change from Baseline in Fasting TG Compared to Placebo [Time Frame: Baseline and Month 6]

Detailed description

Percent Change from Baseline in Fasting TG Compared to Placebo [Time Frame: Baseline and Month 12], Percent Change from Baseline in Fasting Apolipoprotein C-III (ApoC-III), Remnant Cholesterol and Non-High-Density Lipoprotein-Cholesterol (Non-HDL-C) Compared to Placebo [Time Frame: Baseline, Month 6 and 12], Proportion of Patients who Achieve Fasting TG <500 mg/dL (5.65 mmol/L) Compared to Placebo [Time Frame: Month 12], Proportion of Patients Who Achieve Fasting TG < 880 mg/dL (10 mmol/L) Compared to Placebo in the Subgroup of Patients with Baseline TG ≥ 880 mg/dL [Time Frame: Month 12], Adjudicated Acute Pancreatitis Event Rate During the Treatment Period Compared to Placebo [Time Frame: Week 1 through Week 53], Absolute Change in Hepatic Fat Fraction (HFF) Between Olezarsen Treatment Group and Placebo

Interventions

Sponsors

Ionis Pharmaceuticals Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Percent Change from Baseline in Fasting TG Compared to Placebo [Time Frame: Baseline and Month 6]

Secondary

MeasureTime frame
Percent Change from Baseline in Fasting TG Compared to Placebo [Time Frame: Baseline and Month 12], Percent Change from Baseline in Fasting Apolipoprotein C-III (ApoC-III), Remnant Cholesterol and Non-High-Density Lipoprotein-Cholesterol (Non-HDL-C) Compared to Placebo [Time Frame: Baseline, Month 6 and 12], Proportion of Patients who Achieve Fasting TG <500 mg/dL (5.65 mmol/L) Compared to Placebo [Time Frame: Month 12], Proportion of Patients Who Achieve Fasting TG < 880 mg/dL (10 mmol/L) Compared to Placebo in the Subgroup of Patients with Baseline TG ≥ 880 mg/dL [Time Frame: Month 12], Adjudicated Acute Pancreatitis Event Rate During the Treatment Period Compared to Placebo [Time Frame: Week 1 through Week 53], Absolute Change in Hepatic Fat Fraction (HFF) Between Olezarsen Treatment Group and Placebo

Countries

Belgium, Bulgaria, Czechia, France, Greece, Hungary, Italy, Lithuania, Netherlands, Poland, Portugal, Romania, Slovakia, Spain, Sweden

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026