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ISIS 678354-CS5: A Randomized, Double-Blind, Placebo-Controlled, Phase 3 Study of ISIS 678354 Administered Subcutaneously to Patients with Severe Hypertriglyceridemia.

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2024-510696-38-00
Acronym
ISIS 678354-CS5
Enrollment
368
Registered
2024-06-04
Start date
2022-03-08
Completion date
2025-05-28
Last updated
2025-06-30

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

Conditions

Severe Hypertriglyceridemia.

Brief summary

Percent Change from Baseline in Fasting TG at 6 Months (Average of Weeks 25 and 27) Compared to Placebo.

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 at 6 Months (Average of Weeks 25 and 27) Compared to Placebo.

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

Bulgaria, Czechia, Denmark, Finland, France, Germany, Hungary, Italy, Netherlands, Norway, Poland, Portugal, Slovakia, Spain, Sweden

Outcome results

None listed

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