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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03070782
Other study ID # ISIS 681257-CS6
Secondary ID 2016-003373-18
Status Completed
Phase Phase 2
First received
Last updated
Start date March 7, 2017
Est. completion date November 13, 2018

Study information

Verified date October 2020
Source Akcea Therapeutics
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This is a multicenter, randomized, double-blind, placebo-controlled, dose-ranging study to evaluate the safety, including tolerability, of ISIS 681257 and to assess the efficacy of different doses and dosing regimens of ISIS 681257 for reduction of plasma Lipoprotein(a) [Lp(a)] levels in participants with hyperlipoproteinemia(a) and established cardiovascular disease (CVD).


Recruitment information / eligibility

Status Completed
Enrollment 286
Est. completion date November 13, 2018
Est. primary completion date July 26, 2018
Accepts healthy volunteers No
Gender All
Age group 18 Years to 80 Years
Eligibility Key Inclusion Criteria: - Clinical diagnosis of CVD defined as documented coronary artery disease, stroke, or peripheral artery disease - Lp(a) plasma level = 60 mg/dL - Must be on standard-of-care preventative therapy for other than elevated Lp(a) CVD risk factors Key Exclusion Criteria: - Within 6 months of Screening: acute coronary syndrome, major cardiac surgery, or stroke/TIA - Within 3 months of Screening: coronary, carotid, or peripheral arterial revascularization, major non-cardiac surgery, or lipoprotein apheresis - Heart failure New York Heart Association (NYHA) class IV

Study Design


Intervention

Drug:
ISIS 681257
ISIS 681257 solution for SC injection.
Placebo
Sterile normal saline (0.9% NaCl)

Locations

Country Name City State
Canada Clinical Site Chicoutimi Quebec
Canada Clinical Site Montreal Quebec
Canada Clinical Site Montréal Quebec
Canada Clinical Site Ottawa
Canada Clinical Site Québec Quebec
Denmark Clinical Site Herlev
Denmark Clinical Site Viborg
Germany Clinical Site Berlin
Germany Clinical Site Cologne
Netherlands Clinical Site Amsterdam
United States Clinical Site Baltimore Maryland
United States Clinical Site Boca Raton Florida
United States Clinical Site Boston Massachusetts
United States Clinical Site Cleveland Ohio
United States Clinical Site Colorado Springs Colorado
United States Clinical Site Cooperstown New York
United States Clinical Site Cottonwood Arizona
United States Clinical Site Falls Church Virginia
United States Clinical Site Houston Texas
United States Clinical Site Huntington Beach California
United States Clinical Site Jacksonville Florida
United States Clinical Site Kansas City Kansas
United States Clinical Site La Jolla California
United States Clinical Site Lancaster Pennsylvania
United States Clinical Site Los Angeles California
United States Clinical Site Milwaukee Wisconsin
United States Clinical Site New York New York
United States Clinical Site New York New York
United States Clinical Site Philadelphia Pennsylvania
United States Clinical Site Portland Oregon
United States Clinical Site Providence Rhode Island
United States Clinical Site Stanford California

Sponsors (2)

Lead Sponsor Collaborator
Akcea Therapeutics Ionis Pharmaceuticals, Inc.

Countries where clinical trial is conducted

United States,  Canada,  Denmark,  Germany,  Netherlands, 

Outcome

Type Measure Description Time frame Safety issue
Other To Evaluate Plasma Cmax of ISIS 681257 Across Different Doses and Dose Regimens. Cmax will be calculated for the treatment groups. 6 months
Other To Evaluate Plasma Tmax of ISIS 681257 Across Different Doses and Dose Regimens. Tmax will be calculated for the treatment groups. 6 months
Other To Evaluate Plasma AUC Values of ISIS 681257 Across Different Doses and Dose Regimens. AUC values will be calculated for the treatment groups. 6 months
Primary Percent Change From Baseline in Fasting Lipoprotein A [Lp(a)] at the Primary Analysis Time Point An ANCOVA model was performed on the log ratio of Lp(a) value at the Primary Analysis Time Point to Lp(a) value at Baseline. The estimate of the log ratio was converted back to the original scale and percent change was calculated using formula: = (ratio of Lp(a) value at the Primary Analysis Time Point to Lp(a) value at Baseline - 1) × 100. Baseline and Month 6 (Week 25 for Cohorts A, B and C and Week 27 for Cohorts D and E)
Primary Number of Participants With Treatment Emergent Adverse Events (TEAEs) An adverse event (AE) was defined as any unfavorable and unintended sign (including a clinically significant abnormal laboratory finding), symptom, or disease temporally associated with the study or use of investigational drug product, whether or not the AE was considered related to the investigational drug product. TEAEs was defined as any AE with onset after the first administration of study medication through the end of the study, or any event that was present at baseline but worsened in intensity or was subsequently considered drug-related by the Investigator through the end of the study. Up to 16 weeks post treatment period (up to approximately 1.3 years)
Primary Number of Participants With TEAEs by Maximum Severity An AE was defined as any unfavorable and unintended sign (including a clinically significant abnormal laboratory finding), symptom, or disease temporally associated with the study or use of investigational drug product, whether or not the AE was considered related to the investigational drug product. TEAEs was defined as any AE with onset after the first administration of study medication through the end of the study, or any event that was present at baseline but worsened in intensity or was subsequently considered drug-related by the Investigator through the end of the study. The severity of TEAEs was assessed based on the National Cancer Institute's (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 4.03. TEAEs were graded on a 5-point scale where 1 = Mild, 2 = Moderate, 3 = Severe, 4 = Potentially life-threatening and 5 = Death. Up to 16 weeks post treatment period (up to approximately 1.3 years)
Primary Number of Participants With TEAEs Leading to Study Discontinuation An AE was defined as any unfavorable and unintended sign (including a clinically significant abnormal laboratory finding), symptom, or disease temporally associated with the study or use of investigational drug product, whether or not the AE was considered related to the investigational drug product. TEAE was defined as any AE with onset after the first administration of study medication through the end of the study, or any event that was present at baseline but worsened in intensity or was subsequently considered drug-related by the Investigator through the end of the study. Up to 16 weeks post treatment period (up to approximately 1.3 years)
Secondary Percent Change From Baseline in Fasting Low-Density Lipoprotein Cholesterol (LDL-C) An ANCOVA model was performed on the log ratio of LDL-C value at the Primary Analysis Time Point to LDL-C value at Baseline. The estimate of the log ratio was converted back to the original scale and percent change was calculated using formula: = (ratio of LDL-C value at the Primary Analysis Time Point to LDL-C value at Baseline - 1) × 100. Baseline and Month 6 (Week 25 for Cohorts A, B and C and Week 27 for Cohorts D and E)
Secondary Percentage of Participants Who Achieved Plasma Lp(a) = 125 Nanomoles Per Liter (Nmol/L) or = 50 Milligrams Per Deciliter (mg/dL) The percentage of participants who achieved = 125 nmol/L or = 50 mg/dL in fasting Lp(a) at the primary analysis time point were compared between each ISIS 681257 treatment group and pooled placebo group using a logistic regression model with log-transformed baseline Lp(a) as a covariate. Baseline and Month 6 (Week 25 for Cohorts A, B and C and Week 27 for Cohorts D and E)
Secondary Percentage of Participants Who Achieved Plasma Lp(a) = 75 Nmol/L or = 30 mg/dL The percentage of participants who achieved = 75 nmol/L or = 30 mg/dL in fasting Lp(a) at the primary analysis time point were compared between each ISIS 681257 treatment group and pooled placebo group using a logistic regression model with log-transformed baseline Lp(a) as a covariate. Baseline and Month 6 (Week 25 for Cohorts A, B and C and Week 27 for Cohorts D and E)
Secondary Percent Change From Baseline in the Plasma Levels of Apolipoprotein B (apoB) An ANCOVA model was performed on the log ratio of apoB value at the Primary Analysis Time Point to apoB value at Baseline. The estimate of the log ratio was converted back to the original scale and percent change was calculated using formula: = (ratio of apoB value at the Primary Analysis Time Point to apoB value at Baseline - 1) × 100. Baseline and Month 6 (Week 25 for Cohorts A, B and C and Week 27 for Cohorts D and E)
Secondary Percent Change From Baseline in the Plasma Levels of Oxidized Phospholipids (OxPL) on Apolipoprotein(a) [OxPL-apo(a)] An ANCOVA model was performed on the log ratio of OxPL-apo(a) value at the Primary Analysis Time Point to OxPL-apo(a) value at Baseline. The estimate of the log ratio was converted back to the original scale and percent change was calculated using formula: = (ratio of OxPL-apo(a) value at the Primary Analysis Time Point to OxPL-apo(a) value at Baseline - 1) × 100. Baseline and Month 6 (Week 25 for Cohorts A, B and C and Week 27 for Cohorts D and E)
Secondary Percent Change From Baseline in the Plasma Levels of Oxidized Phospholipids (OxPL) on Apolipoprotein B (OxPL-apoB) An ANCOVA model was performed on the log ratio of OxPL-apoB value at the Primary Analysis Time Point to OxPL-apoB value at Baseline. The estimate of the log ratio was converted back to the original scale and percent change was calculated using formula: = (ratio of OxPL-apoB value at the Primary Analysis Time Point to OxPL-apoB value at Baseline - 1) × 100. Baseline and Month 6 (Week 25 for Cohorts A, B and C and Week 27 for Cohorts D and E)
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