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A Study of Olezarsen (Formerly Known as AKCEA-APOCIII-LRx) Administered to Patients With Familial Chylomicronemia Syndrome (FCS)

A Randomized, Double-Blind, Placebo-Controlled, Phase 3 Study of AKCEA-APOCIII-LRx Administered Subcutaneously to Patients With Familial Chylomicronemia Syndrome (FCS)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04568434
Acronym
BALANCE
Enrollment
66
Registered
2020-09-29
Start date
2020-11-18
Completion date
2023-10-17
Last updated
2025-03-06

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

Conditions

Familial Chylomicronemia Syndrome

Keywords

FCS

Brief summary

The purpose of the study was to evaluate the efficacy of olezarsen as compared to placebo on the percent change in fasting triglycerides (TG) from baseline.

Detailed description

This was a multi-center, double-blind, Phase 3 study in up to 60 patients with FCS. Participants were randomized in a 2:1 ratio to receive Olezarsen or matching placebo in a 53-week treatment period. The length of participation in the study was approximately 74 weeks, which included an up to 8-week screening period, a 53-week treatment period, and a 13-week post-treatment evaluation period. Following the treatment period, eligible patients had the option to enroll in the Open-label Extension (OLE) Study ISIS 678354-CS13 (NCT05130450).

Interventions

Olezarsen was administered by SC injection.

DRUGPlacebo

Olezarsen-matching placebo was administered by SC injection.

Sponsors

Ionis Pharmaceuticals, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

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

Inclusion criteria

Key Inclusion Criteria: * A diagnosis of genetically confirmed Familial Chylomicronemia Syndrome (type 1 Hyperlipoproteinemia) * Fasting TG ≥ 880 mg/dL (10 millimoles per liter (mmol/L) at Screening * History of pancreatitis. Patients without a documented history of pancreatitis are also eligible but their enrollment will be capped at 35% * Stable doses of statins, omega-3 fatty acids, fibrates, or other lipid-lowering medications are allowed Key

Exclusion criteria

* Acute coronary syndrome within 6 months of Screening * Major surgery within 3 months of Screening * Have any other conditions, which, in the opinion of the Investigator would make the participant unsuitable for inclusion, or could interfere with participating in or completing the study

Design outcomes

Primary

MeasureTime frame
Percent Change From Baseline in Fasting TG at Month 6Baseline, Month 6

Secondary

MeasureTime frameDescription
Percent Change From Baseline in Fasting TG at Month 12Baseline, Month 12
Percentage of Participants With ≥ 40% Reduction in Fasting TG at Month 6Month 6Percentages are rounded off to the nearest single decimal place.
Percent Change From Baseline in Fasting Apolipoprotein B-48 (apoB-48) at Months 6 and 12Baseline, Months 6 and 12
Percent Change From Baseline in Fasting Non-High-Density Lipoprotein Cholesterol (Non-HDL-C) at Months 6 and 12Baseline, Months 6 and 12
Adjudicated Acute Pancreatitis Mean Event Rate Per 100 Participant-Years During the Treatment Period (Week 1 Through Week 53) in Participants With Prior History of PancreatitisDuring the treatment period Week 1 through Week 53All AEs and SAEs that consistently occurred during the study with an event of acute pancreatitis were adjudicated by a blinded, independent committee according to the Atlanta classification of acute pancreatitis as outlined in the Acute Pancreatitis Adjudication Committee (PAC) Charter. These events were categorized as 1) documented pancreatitis, 2) probable pancreatitis, 3) possible pancreatitis, 4) unable to adjudicate and 5) no diagnosis of acute pancreatitis. The adjudicated event rate represents the average number of events per 100 participant-years during the treatment period.
Adjudicated Acute Pancreatitis Mean Event Rate Per 100 Participant-Years During the Treatment Period (Week 1 Through Week 53)During the treatment period Week 1 through Week 53All AEs and SAEs that consistently occurred during the study with an event of acute pancreatitis were adjudicated by a blinded, independent committee according to the Atlanta classification of acute pancreatitis as outlined in the PAC Charter. These events were categorized as 1) documented pancreatitis, 2) probable pancreatitis, 3) possible pancreatitis, 4) unable to adjudicate and 5) no diagnosis of acute pancreatitis. The adjudicated event rate represents the average number of events per 100 participant-years during the treatment period.
Percent Change From Baseline in Fasting Apolipoprotein C-III (apoC-III) at Months 6 and 12Baseline, Months 6 and 12
Adjudicated Acute Pancreatitis Mean Event Rate Per 100 Participant-Years During Week 13 to Week 53Week 13 through Week 53All AEs and SAEs that consistently occurred during the study with an event of acute pancreatitis were adjudicated by a blinded, independent committee according to the Atlanta classification of acute pancreatitis as outlined in the PAC Charter. These events were categorized as 1) documented pancreatitis, 2) probable pancreatitis, 3) possible pancreatitis, 4) unable to adjudicate and 5) no diagnosis of acute pancreatitis. The adjudicated event rate represents the average number of events per 100 participant-years during the specified duration.
Percentage of Participants With ≥ 70% Reduction in Fasting TG at Month 6Month 6Percentages are rounded off to the nearest single decimal place.
Percentage of Participants With Fasting TG ≤ 880 mg/dL at Month 6Month 6Percentages are rounded off to the nearest single decimal place.
Adjudicated Acute Pancreatitis Mean Event Rate Per 100 Participant-Years During Treatment Period in Participants With ≥ 2 Events in 5 Years Prior to EnrollmentDuring the treatment period Week 1 through Week 53All AEs and SAEs that consistently occurred during the study with an event of acute pancreatitis were adjudicated by a blinded, independent committee according to the Atlanta classification of acute pancreatitis as outlined in the PAC Charter. These events were categorized as 1) documented pancreatitis, 2) probable pancreatitis, 3) possible pancreatitis, 4) unable to adjudicate and 5) no diagnosis of acute pancreatitis. The adjudicated event rate represents the average number of events per 100 participant-years during the treatment period.
Adjudicated Acute Pancreatitis Mean Event Rate Per 100 Participant-Years From Week 13 to Week 53 in Participants With ≥ 2 Events in 5 Years Prior to EnrollmentWeek 13 to Week 53All AEs and SAEs that consistently occurred during the study with an event of acute pancreatitis were adjudicated by a blinded, independent committee according to the Atlanta classification of acute pancreatitis as outlined in the PAC Charter. These events were categorized as 1) documented pancreatitis, 2) probable pancreatitis, 3) possible pancreatitis, 4) unable to adjudicate and 5) no diagnosis of acute pancreatitis. The adjudicated event rate represents the average number of events per 100 participant-years during the specified duration.
Percentage of Participants With Fasting TG ≤ 500 mg/dL at Month 6Month 6Percentages are rounded off to the nearest single decimal place.
Adjudicated Acute Pancreatitis Mean Event Per 100 Participant-Years Rate During Week 13 Through Week 53 in Participants With Prior History of PancreatitisWeek 13 through Week 53All AEs and SAEs that consistently occurred during the study with an event of acute pancreatitis were adjudicated by a blinded, independent committee according to the Atlanta classification of acute pancreatitis as outlined in the PAC Charter. These events were categorized as 1) documented pancreatitis, 2) probable pancreatitis, 3) possible pancreatitis, 4) unable to adjudicate and 5) no diagnosis of acute pancreatitis. The adjudicated event rate represents the average number of events per 100 participant-years during the specified duration.

Countries

Canada, France, Italy, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, United Kingdom, United States

Participant flow

Recruitment details

Participants took part in the study at investigative sites in the United States, Canada, France, Italy, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden and the United Kingdom from 18 November 2020 to 17 October 2023.

Pre-assignment details

Participants with Familial Chylomicronemia Syndrome (FCS) were enrolled and randomized to receive either olezarsen (50 milligrams \[mg\] or 80 mg) or olezarsen-matching placebo for a 53-week treatment period. Participants completing treatment had an option to enroll in the Open-label Extension (OLE) Study ISIS 678354-CS13 (NCT05130450).

Participants by arm

ArmCount
Placebo
Participants received olezarsen-matching placebo, once every 4 weeks by SC injection, during Weeks 1 to 49 of the 53-week treatment period.
23
Olezarsen 50 mg
Participants received olezarsen 50 mg, once every 4 weeks by SC injection, during Weeks 1 to 49 of the 53-week treatment period.
21
Olezarsen 80 mg
Participants received olezarsen 80 mg, once every 4 weeks by SC injection, during Weeks 1 to 49 of the 53-week treatment period.
22
Total66

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Events (AE) or Serious Adverse Events (SAE)012
Overall StudyInvestigator Judgement100
Overall StudyVoluntary Withdrawal011

Baseline characteristics

CharacteristicPlaceboOlezarsen 50 mgOlezarsen 80 mgTotal
Age, Continuous44.0 years
STANDARD_DEVIATION 14.67
43.2 years
STANDARD_DEVIATION 12.11
47.7 years
STANDARD_DEVIATION 13.3
45 years
STANDARD_DEVIATION 13.38
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants3 Participants1 Participants7 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
20 Participants18 Participants21 Participants59 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Fasting Triglycerides (TG)2595.7 milligrams per deciliter (mg/dL)
STANDARD_DEVIATION 1255.72
2683.8 milligrams per deciliter (mg/dL)
STANDARD_DEVIATION 1235.06
2613.1 milligrams per deciliter (mg/dL)
STANDARD_DEVIATION 1498.96
2629.5 milligrams per deciliter (mg/dL)
STANDARD_DEVIATION 1315.45
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants3 Participants3 Participants6 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
1 Participants0 Participants2 Participants3 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants1 Participants0 Participants1 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
22 Participants17 Participants17 Participants56 Participants
Sex: Female, Male
Female
12 Participants15 Participants11 Participants38 Participants
Sex: Female, Male
Male
11 Participants6 Participants11 Participants28 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 231 / 210 / 22
other
Total, other adverse events
19 / 2317 / 2118 / 22
serious
Total, serious adverse events
9 / 234 / 213 / 22

Outcome results

Primary

Percent Change From Baseline in Fasting TG at Month 6

Time frame: Baseline, Month 6

Population: FAS included all participants that were randomly assigned to treatment and received at least 1 dose of olezarsen or placebo.

ArmMeasureValue (LEAST_SQUARES_MEAN)
PlaceboPercent Change From Baseline in Fasting TG at Month 611.52 percent change
Olezarsen 50 mgPercent Change From Baseline in Fasting TG at Month 6-10.85 percent change
Olezarsen 80 mgPercent Change From Baseline in Fasting TG at Month 6-31.99 percent change
p-value: =0.000995% CI: [-69.085, -17.921]ANCOVA
p-value: =0.077595% CI: [-47.2, 2.463]ANCOVA
Secondary

Adjudicated Acute Pancreatitis Mean Event Per 100 Participant-Years Rate During Week 13 Through Week 53 in Participants With Prior History of Pancreatitis

All AEs and SAEs that consistently occurred during the study with an event of acute pancreatitis were adjudicated by a blinded, independent committee according to the Atlanta classification of acute pancreatitis as outlined in the PAC Charter. These events were categorized as 1) documented pancreatitis, 2) probable pancreatitis, 3) possible pancreatitis, 4) unable to adjudicate and 5) no diagnosis of acute pancreatitis. The adjudicated event rate represents the average number of events per 100 participant-years during the specified duration.

Time frame: Week 13 through Week 53

Population: FAS included all participants that were randomly assigned to treatment and received at least 1 dose of olezarsen or placebo. Overall number of participants analyzed is the number of participants with a history of pancreatitis within 10 years prior to screening. As prespecified in the protocol, data for this outcome measure was collected and reported in a pooled manner for olezarsen (combined Olezarsen 50 mg + Olezarsen 80 mg).

ArmMeasureValue (MEAN)
PlaceboAdjudicated Acute Pancreatitis Mean Event Per 100 Participant-Years Rate During Week 13 Through Week 53 in Participants With Prior History of Pancreatitis57.89 events per 100 participant-years
Olezarsen 50 mgAdjudicated Acute Pancreatitis Mean Event Per 100 Participant-Years Rate During Week 13 Through Week 53 in Participants With Prior History of Pancreatitis8.17 events per 100 participant-years
p-value: =0.017495% CI: [0.028, 0.709]Negative Binomial Regression Model
Secondary

Adjudicated Acute Pancreatitis Mean Event Rate Per 100 Participant-Years During the Treatment Period (Week 1 Through Week 53)

All AEs and SAEs that consistently occurred during the study with an event of acute pancreatitis were adjudicated by a blinded, independent committee according to the Atlanta classification of acute pancreatitis as outlined in the PAC Charter. These events were categorized as 1) documented pancreatitis, 2) probable pancreatitis, 3) possible pancreatitis, 4) unable to adjudicate and 5) no diagnosis of acute pancreatitis. The adjudicated event rate represents the average number of events per 100 participant-years during the treatment period.

Time frame: During the treatment period Week 1 through Week 53

Population: FAS included all participants that were randomly assigned to treatment and received at least 1 dose of olezarsen or placebo. As prespecified in the protocol, data for this outcome measure was collected and reported in a pooled manner for olezarsen (combined Olezarsen 50 mg + Olezarsen 80 mg).

ArmMeasureValue (MEAN)
PlaceboAdjudicated Acute Pancreatitis Mean Event Rate Per 100 Participant-Years During the Treatment Period (Week 1 Through Week 53)36.31 events per 100 participant-years
Olezarsen 50 mgAdjudicated Acute Pancreatitis Mean Event Rate Per 100 Participant-Years During the Treatment Period (Week 1 Through Week 53)4.37 events per 100 participant-years
p-value: =0.014495% CI: [0.022, 0.656]Negative Binomial Regression Model
Secondary

Adjudicated Acute Pancreatitis Mean Event Rate Per 100 Participant-Years During the Treatment Period (Week 1 Through Week 53) in Participants With Prior History of Pancreatitis

All AEs and SAEs that consistently occurred during the study with an event of acute pancreatitis were adjudicated by a blinded, independent committee according to the Atlanta classification of acute pancreatitis as outlined in the Acute Pancreatitis Adjudication Committee (PAC) Charter. These events were categorized as 1) documented pancreatitis, 2) probable pancreatitis, 3) possible pancreatitis, 4) unable to adjudicate and 5) no diagnosis of acute pancreatitis. The adjudicated event rate represents the average number of events per 100 participant-years during the treatment period.

Time frame: During the treatment period Week 1 through Week 53

Population: FAS included all participants that were randomly assigned to treatment and received at least 1 dose of olezarsen or placebo. Overall number of participants analyzed is the number of participants with a history of pancreatitis within 10 years prior to screening. As prespecified in the protocol, data for this outcome measure was collected and reported in a pooled manner for olezarsen (combined Olezarsen 50 mg + Olezarsen 80 mg)

ArmMeasureValue (MEAN)
PlaceboAdjudicated Acute Pancreatitis Mean Event Rate Per 100 Participant-Years During the Treatment Period (Week 1 Through Week 53) in Participants With Prior History of Pancreatitis66.22 events per 100 participant-years
Olezarsen 50 mgAdjudicated Acute Pancreatitis Mean Event Rate Per 100 Participant-Years During the Treatment Period (Week 1 Through Week 53) in Participants With Prior History of Pancreatitis6.73 events per 100 participant-years
p-value: =0.005295% CI: [0.02, 0.506]Negative Binomial Regression Model
Secondary

Adjudicated Acute Pancreatitis Mean Event Rate Per 100 Participant-Years During Treatment Period in Participants With ≥ 2 Events in 5 Years Prior to Enrollment

All AEs and SAEs that consistently occurred during the study with an event of acute pancreatitis were adjudicated by a blinded, independent committee according to the Atlanta classification of acute pancreatitis as outlined in the PAC Charter. These events were categorized as 1) documented pancreatitis, 2) probable pancreatitis, 3) possible pancreatitis, 4) unable to adjudicate and 5) no diagnosis of acute pancreatitis. The adjudicated event rate represents the average number of events per 100 participant-years during the treatment period.

Time frame: During the treatment period Week 1 through Week 53

Population: FAS included all participants that were randomly assigned to treatment and received at least 1 dose of olezarsen or placebo. Overall number of participants analyzed is the number of participants with ≥ 2 adjudicated acute pancreatitis events in 5 years prior to enrollment. As prespecified in the protocol, data for this outcome measure was collected and reported in a pooled manner for olezarsen (combined Olezarsen 50 mg + Olezarsen 80 mg).

ArmMeasureValue (MEAN)
PlaceboAdjudicated Acute Pancreatitis Mean Event Rate Per 100 Participant-Years During Treatment Period in Participants With ≥ 2 Events in 5 Years Prior to Enrollment118.59 events per 100 participant-years
Olezarsen 50 mgAdjudicated Acute Pancreatitis Mean Event Rate Per 100 Participant-Years During Treatment Period in Participants With ≥ 2 Events in 5 Years Prior to Enrollment16.59 events per 100 participant-years
p-value: =0.013795% CI: [0.029, 0.669]Negative Binomial Regression Model
Secondary

Adjudicated Acute Pancreatitis Mean Event Rate Per 100 Participant-Years During Week 13 to Week 53

All AEs and SAEs that consistently occurred during the study with an event of acute pancreatitis were adjudicated by a blinded, independent committee according to the Atlanta classification of acute pancreatitis as outlined in the PAC Charter. These events were categorized as 1) documented pancreatitis, 2) probable pancreatitis, 3) possible pancreatitis, 4) unable to adjudicate and 5) no diagnosis of acute pancreatitis. The adjudicated event rate represents the average number of events per 100 participant-years during the specified duration.

Time frame: Week 13 through Week 53

Population: FAS included all participants that were randomly assigned to treatment and received at least 1 dose of olezarsen or placebo. As prespecified in the protocol, data for this outcome measure was collected and reported in a pooled manner for olezarsen (combined Olezarsen 50 mg + Olezarsen 80 mg).

ArmMeasureValue (MEAN)
PlaceboAdjudicated Acute Pancreatitis Mean Event Rate Per 100 Participant-Years During Week 13 to Week 5333.43 events per 100 participant-years
Olezarsen 50 mgAdjudicated Acute Pancreatitis Mean Event Rate Per 100 Participant-Years During Week 13 to Week 535.42 events per 100 participant-years
p-value: =0.031495% CI: [0.031, 0.85]Negative Binomial Regression Model
Secondary

Adjudicated Acute Pancreatitis Mean Event Rate Per 100 Participant-Years From Week 13 to Week 53 in Participants With ≥ 2 Events in 5 Years Prior to Enrollment

All AEs and SAEs that consistently occurred during the study with an event of acute pancreatitis were adjudicated by a blinded, independent committee according to the Atlanta classification of acute pancreatitis as outlined in the PAC Charter. These events were categorized as 1) documented pancreatitis, 2) probable pancreatitis, 3) possible pancreatitis, 4) unable to adjudicate and 5) no diagnosis of acute pancreatitis. The adjudicated event rate represents the average number of events per 100 participant-years during the specified duration.

Time frame: Week 13 to Week 53

Population: FAS included all participants that were randomly assigned to treatment and received at least 1 dose of olezarsen or placebo. Overall number of participants analyzed is the number of participants with ≥ 2 adjudicated acute pancreatitis events in 5 years prior to enrollment. As prespecified in the protocol, data for this outcome measure was collected and reported in a pooled manner for olezarsen (combined Olezarsen 50 mg + Olezarsen 80 mg).

ArmMeasureValue (MEAN)
PlaceboAdjudicated Acute Pancreatitis Mean Event Rate Per 100 Participant-Years From Week 13 to Week 53 in Participants With ≥ 2 Events in 5 Years Prior to Enrollment106.91 events per 100 participant-years
Olezarsen 50 mgAdjudicated Acute Pancreatitis Mean Event Rate Per 100 Participant-Years From Week 13 to Week 53 in Participants With ≥ 2 Events in 5 Years Prior to Enrollment21.36 events per 100 participant-years
p-value: =0.04895% CI: [0.04, 0.986]Negative Binomial Regression Model
Secondary

Percentage of Participants With ≥ 40% Reduction in Fasting TG at Month 6

Percentages are rounded off to the nearest single decimal place.

Time frame: Month 6

Population: FAS included all participants that were randomly assigned to treatment and received at least 1 dose of olezarsen or placebo.

ArmMeasureValue (NUMBER)
PlaceboPercentage of Participants With ≥ 40% Reduction in Fasting TG at Month 64.3 percentage of participants
Olezarsen 50 mgPercentage of Participants With ≥ 40% Reduction in Fasting TG at Month 633.3 percentage of participants
Olezarsen 80 mgPercentage of Participants With ≥ 40% Reduction in Fasting TG at Month 640.9 percentage of participants
Secondary

Percentage of Participants With ≥ 70% Reduction in Fasting TG at Month 6

Percentages are rounded off to the nearest single decimal place.

Time frame: Month 6

Population: FAS included all participants that were randomly assigned to treatment and received at least 1 dose of olezarsen or placebo.

ArmMeasureValue (NUMBER)
PlaceboPercentage of Participants With ≥ 70% Reduction in Fasting TG at Month 60 percentage of participants
Olezarsen 50 mgPercentage of Participants With ≥ 70% Reduction in Fasting TG at Month 64.8 percentage of participants
Olezarsen 80 mgPercentage of Participants With ≥ 70% Reduction in Fasting TG at Month 69.1 percentage of participants
Secondary

Percentage of Participants With Fasting TG ≤ 500 mg/dL at Month 6

Percentages are rounded off to the nearest single decimal place.

Time frame: Month 6

Population: FAS included all participants that were randomly assigned to treatment and received at least 1 dose of olezarsen or placebo. 'Overall number of participants analyzed' indicates the number of participants with data available for the analyses.

ArmMeasureValue (NUMBER)
PlaceboPercentage of Participants With Fasting TG ≤ 500 mg/dL at Month 60 percentage of participants
Olezarsen 50 mgPercentage of Participants With Fasting TG ≤ 500 mg/dL at Month 60 percentage of participants
Olezarsen 80 mgPercentage of Participants With Fasting TG ≤ 500 mg/dL at Month 613.6 percentage of participants
Secondary

Percentage of Participants With Fasting TG ≤ 880 mg/dL at Month 6

Percentages are rounded off to the nearest single decimal place.

Time frame: Month 6

Population: FAS included all participants that were randomly assigned to treatment and received at least 1 dose of olezarsen or placebo. Overall number of participants analyzed indicates the number of participants with data available for analyses.

ArmMeasureValue (NUMBER)
PlaceboPercentage of Participants With Fasting TG ≤ 880 mg/dL at Month 60 percentage of participants
Olezarsen 50 mgPercentage of Participants With Fasting TG ≤ 880 mg/dL at Month 610.0 percentage of participants
Olezarsen 80 mgPercentage of Participants With Fasting TG ≤ 880 mg/dL at Month 614.3 percentage of participants
Secondary

Percent Change From Baseline in Fasting Apolipoprotein B-48 (apoB-48) at Months 6 and 12

Time frame: Baseline, Months 6 and 12

Population: FAS included all participants that were randomly assigned to treatment and received at least 1 dose of olezarsen or placebo.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
PlaceboPercent Change From Baseline in Fasting Apolipoprotein B-48 (apoB-48) at Months 6 and 12Month 624.50 percent change
PlaceboPercent Change From Baseline in Fasting Apolipoprotein B-48 (apoB-48) at Months 6 and 12Month 12-3.52 percent change
Olezarsen 50 mgPercent Change From Baseline in Fasting Apolipoprotein B-48 (apoB-48) at Months 6 and 12Month 6-8.78 percent change
Olezarsen 50 mgPercent Change From Baseline in Fasting Apolipoprotein B-48 (apoB-48) at Months 6 and 12Month 12-36.41 percent change
Olezarsen 80 mgPercent Change From Baseline in Fasting Apolipoprotein B-48 (apoB-48) at Months 6 and 12Month 6-59.46 percent change
Olezarsen 80 mgPercent Change From Baseline in Fasting Apolipoprotein B-48 (apoB-48) at Months 6 and 12Month 12-79.15 percent change
Comparison: Percent Change From Baseline at Month 6p-value: =0.18695% CI: [-82.612, 16.041]ANCOVA
Comparison: Percent Change From Baseline at Month 6p-value: =0.001995% CI: [-136.949, -30.982]ANCOVA
Comparison: Percent Change from Baseline at Month 12p-value: =0.421995% CI: [-113.254, 47.459]ANCOVA
Comparison: Percent Change from Baseline at Month 12p-value: =0.05695% CI: [-153.195, 1.927]ANCOVA
Secondary

Percent Change From Baseline in Fasting Apolipoprotein C-III (apoC-III) at Months 6 and 12

Time frame: Baseline, Months 6 and 12

Population: FAS included all participants that were randomly assigned to treatment and received at least 1 dose of olezarsen or placebo.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
PlaceboPercent Change From Baseline in Fasting Apolipoprotein C-III (apoC-III) at Months 6 and 12Month 67.57 percent change
PlaceboPercent Change From Baseline in Fasting Apolipoprotein C-III (apoC-III) at Months 6 and 12Month 1217.08 percent change
Olezarsen 50 mgPercent Change From Baseline in Fasting Apolipoprotein C-III (apoC-III) at Months 6 and 12Month 6-57.91 percent change
Olezarsen 50 mgPercent Change From Baseline in Fasting Apolipoprotein C-III (apoC-III) at Months 6 and 12Month 12-59.98 percent change
Olezarsen 80 mgPercent Change From Baseline in Fasting Apolipoprotein C-III (apoC-III) at Months 6 and 12Month 6-66.13 percent change
Olezarsen 80 mgPercent Change From Baseline in Fasting Apolipoprotein C-III (apoC-III) at Months 6 and 12Month 12-64.20 percent change
Comparison: Percent Change from Baseline at Month 6p-value: <0.000195% CI: [-82.634, -48.32]ANCOVA
Comparison: Percent Change from Baseline at Month 6p-value: <0.000195% CI: [-94.553, -52.837]ANCOVA
Comparison: Percent Change from Baseline at Month 12p-value: <0.000195% CI: [-98.938, -55.177]ANCOVA
Comparison: Percent Change from Baseline at Month 12p-value: <0.000195% CI: [-104.656, -57.894]ANCOVA
Secondary

Percent Change From Baseline in Fasting Non-High-Density Lipoprotein Cholesterol (Non-HDL-C) at Months 6 and 12

Time frame: Baseline, Months 6 and 12

Population: FAS included all participants that were randomly assigned to treatment and received at least 1 dose of olezarsen or placebo.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)
PlaceboPercent Change From Baseline in Fasting Non-High-Density Lipoprotein Cholesterol (Non-HDL-C) at Months 6 and 12Month 65.33 percent change
PlaceboPercent Change From Baseline in Fasting Non-High-Density Lipoprotein Cholesterol (Non-HDL-C) at Months 6 and 12Month 1212.01 percent change
Olezarsen 50 mgPercent Change From Baseline in Fasting Non-High-Density Lipoprotein Cholesterol (Non-HDL-C) at Months 6 and 12Month 6-12.35 percent change
Olezarsen 50 mgPercent Change From Baseline in Fasting Non-High-Density Lipoprotein Cholesterol (Non-HDL-C) at Months 6 and 12Month 12-17.84 percent change
Olezarsen 80 mgPercent Change From Baseline in Fasting Non-High-Density Lipoprotein Cholesterol (Non-HDL-C) at Months 6 and 12Month 6-18.86 percent change
Olezarsen 80 mgPercent Change From Baseline in Fasting Non-High-Density Lipoprotein Cholesterol (Non-HDL-C) at Months 6 and 12Month 12-27.69 percent change
Comparison: Percent Change from Baseline Month 6p-value: =0.040195% CI: [-34.571, -0.801]ANCOVA
Comparison: Percent Change from Baseline Month 6p-value: =0.003695% CI: [-40.484, -7.911]ANCOVA
Comparison: Percent Change from Baseline at Month 12p-value: =0.013495% CI: [-53.49, -6.198]ANCOVA
Comparison: Percent Change from Baseline at Month 12p-value: =0.000995% CI: [-63.108, -16.292]ANCOVA
Secondary

Percent Change From Baseline in Fasting TG at Month 12

Time frame: Baseline, Month 12

Population: FAS included all participants that were randomly assigned to treatment and received at least 1 dose of olezarsen or placebo.

ArmMeasureValue (LEAST_SQUARES_MEAN)
PlaceboPercent Change From Baseline in Fasting TG at Month 1220.89 percent change
Olezarsen 50 mgPercent Change From Baseline in Fasting TG at Month 12-22.92 percent change
Olezarsen 80 mgPercent Change From Baseline in Fasting TG at Month 12-38.50 percent change
p-value: =0.004495% CI: [-73.928, -13.692]ANCOVA
p-value: =0.000295% CI: [-90.663, -28.119]ANCOVA

Source: ClinicalTrials.gov · Data processed: Feb 18, 2026