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CORE-OLE: A Study of Olezarsen (ISIS 678354) Administered Subcutaneously to Participants With Severe Hypertriglyceridemia (SHTG)

An Open-Label Extension Study of Olezarsen (ISIS 678354) Administered Subcutaneously to Patients With Severe Hypertriglyceridemia (SHTG)

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05681351
Enrollment
885
Registered
2023-01-12
Start date
2022-12-13
Completion date
2027-03-31
Last updated
2025-12-01

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

Conditions

Severe Hypertriglyceridemia

Keywords

ISIS 678354, Olezarsen

Brief summary

The purpose of this study is to evaluate the safety and tolerability of olezarsen in participants with SHTG.

Detailed description

This is a multi-center, open-label extension (OLE) study of approximately 800 participants with SHTG who would be rolled over from studies ISIS 678354-CS5 (NCT05079919) or ISIS 678354-CS6 (NCT05552326). Day 1 of this study may be same as the Week 53 visit of either ISIS 678354-CS5 or ISIS 678354-CS6, as applicable. Participants will receive olezarsen during the 157-week treatment period. The study will include a 31-day qualification Period, a 157-week treatment period, and a 13-week post-treatment period.

Interventions

Administered as SC injection.

Sponsors

Ionis Pharmaceuticals, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: * Satisfactory completion of either ISIS 678354-CS5 or ISIS 678354-CS6 with an acceptable safety profile, per Investigator judgment. Satisfactory completion requires that the patient did not terminate early from treatment. * Participants must be on a stable regimen of lipid-lowering therapy that should adhere to standard of care (SOC) per local guidelines. A patient may be eligible if their regimen of lipid-lowering therapy has been changed recently, provided that lipid lowering medications are optimized and stabilized for at least 4 weeks prior to the end of the Qualification Period of this OLE study; ideally, such changes are initiated after Week 53 of the index study (ISIS 678354-CS5 or CS6). * A patient may re-enroll in the study after having completed the study when the Treatment Period was 53 weeks, if the patient satisfactorily completed the study with an acceptable safety profile, per Investigator judgment. In the case of re-enrollment, there is no limit on the time gap between completion of treatment under the previous protocol and dosing upon re-enrollment (i.e., may exceed 17 weeks between doses). Key

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 participant participating in or completing the study, including need for treatment with disallowed medications, or need to change the required stable regimen as per either ISIS 678354-CS5 or ISIS 678354-CS6 study entry criteria. It is acceptable to adjust a regimen of lipid-lowering therapy as described in the second Key Inclusion Criterion above, and it is acceptable to adjust or stop lipid-lowering therapy at or after Week 13 per Investigator judgment. NOTE: Other Inclusion/

Design outcomes

Primary

MeasureTime frame
Proportion of Participants With Change in Clinical Laboratory Values From Baseline to Week 53, From Baseline to Week 105, and From Baseline to Week 157Baseline up to Week 157
Proportion of Participants Who Experience Adverse Events (AEs)Baseline up to Week 157
Proportion of Participants Who Use Concomitant MedicationsBaseline up to Week 157

Countries

Argentina, Australia, Belgium, Brazil, Bulgaria, Canada, Czechia, Denmark, Finland, France, Germany, Greece, Hungary, India, Israel, Italy, Lithuania, Malaysia, Mexico, Netherlands, New Zealand, Norway, Poland, Portugal, Romania, Slovakia, South Africa, Spain, Sweden, Taiwan, Turkey (Türkiye), United Kingdom, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026