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A safety study of an investigational medicinal product AKCEA-APOCIII-LRX administered under the skin to patients with Familial Chylomicronemia Syndrome (FCS) previously treated with Volanesorsen (ISIS 304801).

An Open-Label Safety Study of AKCEA-APOCIII-LRX Administered Subcutaneously to Patients with Familial Chylomicronemia Syndrome (FCS) Previously Treated with Volanesorsen (ISIS 304801)

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2021-003635-29-SE
Enrollment
24
Registered
2022-05-06
Start date
2022-06-15
Completion date
Unknown
Last updated
2025-02-10

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

Conditions

Familial Chylomicronemia Syndrome MedDRA version: 24.1 Level: LLT Classification code 10085051 Term: Familial chylomicronemia syndrome System Organ Class: 100000004850

Interventions

Product Name: ISIS 678354 Product Code: ISIS 678354 Pharmaceutical Form: Solution for injection Current Sponsor code: ISIS 678354 Other descriptive name: ISIS 678354 sodium salt Concentration unit: mg

Sponsors

Ionis Pharmaceuticals, Inc.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patients with FCS (clinical or genetic diagnosis) currently on or previously treated with volanesorsen (ISIS 304801). Study participants in countries where Waylivra® is commercially approved and available for the patients should not be deprived of the treatment option withWaylivra®. Participation in this study for such patients will only be allowed when Waylivra® was discontinued due to adverse events (AEs) Other protocol-defined inclusion criteria apply. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 30 F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: Treatment with another investigational drug (non-oligonucleotide), biological agent, or device within 4 weeks of Screening, or 5 half-lives of investigational agent, whichever is longer. Have any other conditions including significant medical history which, in the opinion of the Investigator would make the patient unsuitable for inclusion, or could interfere with the patient participating in or completing the Study Other protocol-defined exclusion criteria apply.

Design outcomes

Primary

MeasureTime frame
Main Objective: 1. To evaluate the safety of ISIS 678354 in patients with FCS previously treated with volanesorsen 2. To evaluate the tolerability of ISIS 678354 in patients with FCS previously treated with volanesorsen 3. Pharmacokinetic (PK) Objective To evaluate the PK effects of ISIS 678354 in patients with FCS previously treated with volanesorsen 4. Pharmacodynamics (PD) Objectives To evaluate the PD effects of ISIS 678354 in patients with FCS previously treated with volanesorsen;Secondary Objective: Not applicable;Primary end point(s): 1) Safety endpoints include a proportion of patients who show the following changes from Baseline to Week 53, Week 105, and Week 157: • Decrease in platelet count by > 30% • Decrease in platelet count by > 50% • Platelet count value 30% • Decrease in eGFR by > 50% • UPCR = 1000 mg/g • UACR = 500 mg/g • ALT or AST > 5 × ULN • Total bilirubin > 2.0 mg/dL • ALT or AST > 3 × ULN and total bilirubin =2 × ULN 2) Tolerability assessments: AEs, clinical laboratory tests, and use of concomitant medications 3) PK assessments include determination of trough (pre-dose) and post-treatment plasma ISIS 678354 concentrations 4) PD endpoints include: 1. Change and percent change from Baseline to Week 53, Week 105, and Week 157 in fasting: • TG • APOC-III, VLDL-C, chylomicron-TG total cholesterol (TC), non-HDL-C, LDL-C, apoB, apoB48, HDL-C, ApoA-1 2. Event rate of acute pancreatitis (Week 1 through Weeks 53, 105, and 157) ;Timepoint(s) of evaluation of this end point: 1) Baseline, Week 53, Week, 105, Week 157 2) Baseline through EoT 3) Week 1,5,13,25, 53, EoT 4) Baseline, Week, 1,5,9,13,17,21,25,29,33,37,41,45,49,53, 57,61, 105, 157, EoT

Secondary

MeasureTime frame
Secondary end point(s): Not applicable;Timepoint(s) of evaluation of this end point: Not applicable

Countries

Sweden

Contacts

Public ContactStacy Woeppel

Ionis Pharmaceuticals, Inc.

clinicaltrials@ionisph.com1760 268-4986

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026