ClinicalTrials.gg
CompletedNCT03399786Updated May 18, 2021Results posted

Efficacy and Safety of Evinacumab in Patients With Homozygous Familial Hypercholesterolemia

A Phase 3 interventional study of evinacumab and Placebo in Homozygous Familial Hypercholesterolemia, sponsored by Regeneron Pharmaceuticals. Completed at 30 sites in 11 countries. Open to participants aged 12 Years and older. Per ClinicalTrials.gov, last updated 2021-05-18.

Sponsored by Regeneron Pharmaceuticals · Phase 3, Interventional, and Treatment

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Phase
Phase 3
Study type
Interventional
Enrollment
65
Allocation
Randomized
Ages
12 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-14

Among 36 studies in Homozygous Familial Hypercholesterolemia with a site in United States — 7 open to participants now, 9 under way, 4 of them phase 3. Homozygous Familial Hypercholesterolemia · United States.

Enrollment
11th of 31
65 · median 29
Started
2018
with 2 others
Phase 3
16 of 36
3 open now
Registered
20th of 36
by date
Lead sponsor
5 of 36
Regeneron Pharmaceuticals

Among the 36 studies in Homozygous Familial Hypercholesterolemia with a site in United States, this one is the 11th largest by enrollment of the 31 interventional ones that give a count, is one of 3 that started in 2018, is one of 16 in phase 3, and was the 20th registered.

Homozygous Familial Hypercholesterolemia

68 studies on the registry are indexed under Homozygous Familial Hypercholesterolemia; 13 are open to participants now.

Browse Homozygous Familial Hypercholesterolemia studies →

Open to participants now

7 of the 36 studies in Homozygous Familial Hypercholesterolemia with a site in United States are open now. Recruiting first, the newest first:

2 more — sign in →

All 7 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 12 Homozygous Familial Hypercholesterolemia studies recruiting now, 6 (50%) set no upper age limit and 5 (42%) stop at 75 or younger; 8 take children under 18; none take healthy volunteers.

This study: 12 Years and older · all sexes · no healthy volunteers.

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02

Study summary

The primary objective of the study is to demonstrate the reduction of low-density lipoprotein cholesterol (LDL-C) by evinacumab intravenously (IV) in comparison to placebo after 24 weeks in patients with homozygous familial hypercholesterolemia (HoFH). The secondary objectives of the study are to evaluate the effect of evinacumab IV on other lipid parameters, evaluate the effect of evinacumab on LDL-C goal attainment, assess the effect of evinacumab on eligibility for apheresis (using German and US apheresis criteria), evaluate the safety and tolerability of evinacumab in patients with HoFH, assess the pharmacokinetics (PK) of evinacumab in patients with HoFH and evaluate the potential development of anti-evinacumab antibodies.

03

Conditions studied

  • Homozygous Familial Hypercholesterolemia

Keywords

  • HoFH
04

Who can participate

Ages eligible
12 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Key Inclusion Criteria:

  1. Diagnosis of functional HoFH
  2. If undergoing LDL apheresis, must have initiated LDL apheresis at least 3 months prior to screening and must have been on a stable weekly or every other week schedule and/or stable settings for at least 8 weeks
  3. Willing to consistently maintain his/her usual low fat or heart-healthy diet for the duration of the study

Key Exclusion Criteria:

  1. LDL-C level \<70 mg/dL (1.81 mmol/L) at the screening visit
  2. Background medical Lipid Modifying Therapy (LMT) (if applicable) that has not been stable before the screening visit
  3. Lipid-apheresis schedule /apheresis settings (if applicable) that have not been stable for at least 8 weeks before the screening visit
  4. Use of nutraceuticals or over-the-counter therapies known to affect lipids, at a dose/amount that has not been stable for at least 4 weeks prior to the screening visit
  5. Presence of any uncontrolled endocrine disease known to influence serum lipids or lipoproteins
  6. Newly diagnosed (within 3 months prior to randomization visit) diabetes mellitus or poorly controlled ( >9%) diabetes
  7. History of a MI, unstable angina leading to hospitalization, coronary artery bypass graft surgery, percutaneous coronary intervention, uncontrolled cardiac arrhythmia, carotid surgery or stenting, stroke, , valve replacement surgery, carotid revascularization, endovascular procedure or surgical intervention for peripheral vascular disease within 3 months prior to the screening visit
  8. Pregnant or breastfeeding women
  9. Sexually active women of child bearing potential (), who are unwilling to practice a highly effective method prior to the initial dose, during the study, and for 24 weeks after the last dose of study drug
  10. Men who are sexually active with women of child bearing potential (WOCBP) and are unwilling to consistently use condoms during the study drug treatment period and for 24 weeks after the last dose of study drug regardless of vasectomy status

Note: Other protocol defined inclusion/exclusion criteria may apply.

Terms in these criteria, in plain language(5)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

HbA1c

A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.

TIA (transient ischaemic attack)

A “mini-stroke”: temporary stroke-like symptoms caused by reduced blood flow to part of the brain, spinal cord or eye, without signs of a new stroke on a scan.

Stroke symptoms need emergency care at once, even if they go away.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
65 participants (actual)

Study arms

  • Experimental
    evinacumab

    Drug: evinacumab

  • Experimental
    Placebo

    Drug: Placebo

Interventions

  • IV administration of evinacumab

    Also known as: REGN1500

  • DrugPlacebo

    IV administration of placebo

06

What researchers measure

Primary outcomes

  1. Percent Change in Calculated Low-Density Lipoprotein Cholesterol (LDL-C) From Baseline to Week 24 (Intent-to-Treat [ITT] Estimand)

    Percent change was calculated as 100x(calculated LDL-C value at Week 24 - calculated LDL-C value at baseline)/calculated LDL-C value at baseline. The baseline LDL-C value was the last calculated LDL-C value obtained before the first dose of double-blind-study drug. The calculated LDL-C at week 24 was the LDL-C value obtained within the week 24 efficacy analysis window, regardless of adherence to treatment and subsequent therapies (intent-to-treat \[ITT\] estimand). The ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

    Time frame: Week 24

Secondary outcomes

  1. Percent Change in Apolipoprotein B (Apo B) From Baseline to Week 24 (ITT Estimand)

    Percent change in Apo B from baseline at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

    Time frame: Week 24

  2. Percent Change in Non-High-Density Lipoprotein Cholesterol (Non-HDL-C) From Baseline to Week 24 (ITT Estimand)

    Percent change from baseline in non-HDL-C at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

    Time frame: Week 24

  3. Percent Change in Total Cholesterol (TC) From Baseline to Week 24 (ITT Estimand)

    Percent change in TC from baseline at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

    Time frame: Week 24

  4. Percentage of Participants With ≥30% Reduction in Calculated Low-Density Lipoprotein Cholesterol (LDL-C) at Week 24 (ITT Estimand)

    Percentage of participants who achieved reduction in calculated LDL-C ≥30% at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

    Time frame: At Week 24

  5. Percentage of Participants With ≥50% Reduction in Calculated Low-Density Lipoprotein Cholesterol (LDL-C) at Week 24 (ITT Estimand)

    Percentage of participants who achieved reduction in calculated LDL-C ≥ 50% at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

    Time frame: At Week 24

  6. Absolute Change in Calculated Low-Density Lipoprotein Cholesterol (LDL-C) From Baseline to Week 24 (ITT Estimand)

    Absolute change in calculated LDL-C from baseline at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

    Time frame: Week 24

  7. Percentage of Participants Who Met United States (US) Apheresis Eligibility Criteria at Week 24 (ITT Estimand)

    US apheresis eligibility criteria included participants who had inadequate response to diet and LMTs after 6 months of treatment and with functional Homozygous familial hypercholesterolemia (HoFH) or Heterozygous familial hypercholesterolemia (HeFH) (with 0-1 risk factor) with LDL-C ≥ 300 mg/dL (7.77 mmol/L). Percentage of participants who met US apheresis eligibility criteria at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

    Time frame: At Week 24

  8. Percentage of Participants With Low-Density Lipoprotein Cholesterol (LDL-C) <100 Milligrams Per Deciliter (mg/dL) (2.59 Millimoles Per Liter [mmol/L]) at Week 24 (ITT Estimand)

    Percentage of participants with LDL-C value \<100 mg/dL (2.59 mmol/L) in the DBTP at Week 24 was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analysed according to the treatment group allocated by randomization (i.e., as randomized participant group).

    Time frame: At Week 24

  9. Percentage of Participants Who Met European Union (EU) Apheresis Eligibility Criteria at Week 24 (ITT Estimand)

    EU apheresis eligibility criteria included participants who had inadequate response to diet and Lipid modifying therapies (LMTs) after 3 months of treatment, Primary prevention: Participants with Familial hypercholesterolemia (FH) with LDL-C \>160 mg/dL (4.2 mmol/L) and Cardiovascular (CV) events in close relatives. Secondary prevention: Participants with progressive CV events with LDL-C \> 120 to 130 mg/dL (3.1-3.4 mmol/L). Percentage of participants who met EU apheresis eligibility criteria at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

    Time frame: At Week 24

  10. Percentage of Participants With Calculated Low-Density Lipoprotein Cholesterol (LDL-C) <70 mg/dL (1.81 mmol/L) at Week 24 (ITT Estimand)

    Percentage of participants with LDL-C \<70 mg/dL (1.81 mmol/L) at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

    Time frame: At Week 24

  11. Percent Change in Fasting Triglycerides (TG) From Baseline to Week 24 (ITT Estimand)

    Percent change from baseline in TG at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

    Time frame: Week 24

  12. Percent Change in Lipoprotein A (Lp[a]) From Baseline to Week 24 (ITT Estimand)

    Percent change in Lp(a) from baseline at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

    Time frame: Week 24

  13. Absolute Change in Apolipoprotein B (Apo B) From Baseline to Week 24 (ITT Estimand)

    Absolute change in Apo B from baseline at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

    Time frame: Week 24

  14. Absolute Change in Non-High-Density Lipoprotein Cholesterol (Non-HDL-C) From Baseline to Week 24 (ITT Estimand)

    Absolute change in non-HDL-C from baseline at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

    Time frame: Week 24

  15. Absolute Change in Total Cholesterol (TC) From Baseline to Week 24 (ITT Estimand)

    Absolute change in TC from baseline at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

    Time frame: Week 24

  16. Percent Change in Apolipoprotein CIII (Apo CIII) From Baseline to Week 24 (ITT Estimand)

    Percent change in Apo CIII from baseline at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

    Time frame: Week 24

07

Results

Posted May 18, 2021

Participant flow

This study was conducted at 30 centers that enrolled participants in 11 countries in Europe, Asia, North America, and Australia. Randomization was stratified by apheresis treatment status and by region (Japan, Rest of the World \[ROW\]).

Double-blind Treatment Period (DBTP)
Participant flow — Double-blind Treatment Period (DBTP)
MilestonePlacebo IV Q4W (DBTP)Evinacumab 15 mg/kg (DBTP)Placebo IV Q4W (OLTP)Evinacumab 15 mg/kg (OLTP)
Started224300
Completed214300
Not completed1000
Withdrew: Withdrawal by subject1000
Open-label Treatment Period (OLTP)
Participant flow — Open-label Treatment Period (OLTP)
MilestonePlacebo IV Q4W (DBTP)Evinacumab 15 mg/kg (DBTP)Placebo IV Q4W (OLTP)Evinacumab 15 mg/kg (OLTP)
Started002044
Completed001943
Not completed0011
Withdrew: Noncompliance with protocol by the participant0010
Withdrew: Pregnancy0001

Outcome measures

PrimaryPercent Change in Calculated Low-Density Lipoprotein Cholesterol (LDL-C) From Baseline to Week 24 (Intent-to-Treat [ITT] Estimand)

Percent change was calculated as 100x(calculated LDL-C value at Week 24 - calculated LDL-C value at baseline)/calculated LDL-C value at baseline. The baseline LDL-C value was the last calculated LDL-C value obtained before the first dose of double-blind-study drug. The calculated LDL-C at week 24 was the LDL-C value obtained within the week 24 efficacy analysis window, regardless of adherence to treatment and subsequent therapies (intent-to-treat \[ITT\] estimand). The ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

Time frame:
Week 24
Reported as:
Least squares mean · Percent Change
Percent Change in Calculated Low-Density Lipoprotein Cholesterol (LDL-C) From Baseline to Week 24 (Intent-to-Treat [ITT] Estimand)
Percent ChangePlacebo IV Q4WEvinacumab 15 mg/kg IV Q4W
Percent Change in Calculated Low-Density Lipoprotein Cholesterol (LDL-C) From Baseline to Week 24 (Intent-to-Treat [ITT] Estimand)1.9 ± 6.5-47.1 ± 4.6
Statistical analysis
  • Placebo IV Q4W vs Evinacumab 15 mg/kg IV Q4W · Mixed-effect Model Repeat Measure (MMRM) · p = < 0.0001 · Least squares (ls) mean difference: -49.0 · 95% CI -65.0 to -33.1
SecondaryPercent Change in Apolipoprotein B (Apo B) From Baseline to Week 24 (ITT Estimand)

Percent change in Apo B from baseline at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

Time frame:
Week 24
Reported as:
Least squares mean · Percent Change
Percent Change in Apolipoprotein B (Apo B) From Baseline to Week 24 (ITT Estimand)
Percent ChangePlacebo IV Q4WEvinacumab 15 mg/kg IV Q4W
Percent Change in Apolipoprotein B (Apo B) From Baseline to Week 24 (ITT Estimand)-4.5 ± 4.8-41.4 ± 3.3
Statistical analysis
  • Placebo IV Q4W vs Evinacumab 15 mg/kg IV Q4W · Mixed-effect Model Repeat Measure (MMRM) · p = < 0.0001 · Least squares (ls) mean difference: -36.9 · 95% CI -48.6 to -25.2
SecondaryPercent Change in Non-High-Density Lipoprotein Cholesterol (Non-HDL-C) From Baseline to Week 24 (ITT Estimand)

Percent change from baseline in non-HDL-C at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

Time frame:
Week 24
Reported as:
Least squares mean · Percent Change
Percent Change in Non-High-Density Lipoprotein Cholesterol (Non-HDL-C) From Baseline to Week 24 (ITT Estimand)
Percent ChangePlacebo IV Q4WEvinacumab 15 mg/kg IV Q4W
Percent Change in Non-High-Density Lipoprotein Cholesterol (Non-HDL-C) From Baseline to Week 24 (ITT Estimand)2.0 ± 5.4-49.7 ± 3.8
Statistical analysis
  • Placebo IV Q4W vs Evinacumab 15 mg/kg IV Q4W · Mixed-effect Model Repeat Measure (MMRM) · p = < 0.0001 · Least squares (ls) mean difference: -51.7 · 95% CI -64.8 to -38.5
SecondaryPercent Change in Total Cholesterol (TC) From Baseline to Week 24 (ITT Estimand)

Percent change in TC from baseline at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

Time frame:
Week 24
Reported as:
Least squares mean · Percent Change
Percent Change in Total Cholesterol (TC) From Baseline to Week 24 (ITT Estimand)
Percent ChangePlacebo IV Q4WEvinacumab 15 mg/kg IV Q4W
Percent Change in Total Cholesterol (TC) From Baseline to Week 24 (ITT Estimand)1.0 ± 4.2-47.4 ± 3.0
Statistical analysis
  • Placebo IV Q4W vs Evinacumab 15 mg/kg IV Q4W · Mixed-effect Model Repeat Measure (MMRM) · p = < 0.0001 · Least squares (ls) mean difference: -48.4 · 95% CI -58.7 to -38.1
SecondaryPercentage of Participants With ≥30% Reduction in Calculated Low-Density Lipoprotein Cholesterol (LDL-C) at Week 24 (ITT Estimand)

Percentage of participants who achieved reduction in calculated LDL-C ≥30% at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

Time frame:
At Week 24
Reported as:
Number · Percentage of Participants
Percentage of Participants With ≥30% Reduction in Calculated Low-Density Lipoprotein Cholesterol (LDL-C) at Week 24 (ITT Estimand)
Percentage of ParticipantsPlacebo IV Q4WEvinacumab 15 mg/kg IV Q4W
Percentage of Participants With ≥30% Reduction in Calculated Low-Density Lipoprotein Cholesterol (LDL-C) at Week 24 (ITT Estimand)18.283.7
Statistical analysis
  • Placebo IV Q4W vs Evinacumab 15 mg/kg IV Q4W · Logistic Regression Models Analyses · p = < 0.0001 · Odds ratio (or): 25.2 · 95% CI 5.7 to 110.5
SecondaryPercentage of Participants With ≥50% Reduction in Calculated Low-Density Lipoprotein Cholesterol (LDL-C) at Week 24 (ITT Estimand)

Percentage of participants who achieved reduction in calculated LDL-C ≥ 50% at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

Time frame:
At Week 24
Reported as:
Number · Percentage of Participants
Percentage of Participants With ≥50% Reduction in Calculated Low-Density Lipoprotein Cholesterol (LDL-C) at Week 24 (ITT Estimand)
Percentage of ParticipantsPlacebo IV Q4WEvinacumab 15 mg/kg IV Q4W
Percentage of Participants With ≥50% Reduction in Calculated Low-Density Lipoprotein Cholesterol (LDL-C) at Week 24 (ITT Estimand)4.555.8
Statistical analysis
  • Placebo IV Q4W vs Evinacumab 15 mg/kg IV Q4W · Logistic Regression Models Analyses · p = = 0.0028 · Odds ratio (or): 24.2 · 95% CI 3.0 to 195.6
SecondaryAbsolute Change in Calculated Low-Density Lipoprotein Cholesterol (LDL-C) From Baseline to Week 24 (ITT Estimand)

Absolute change in calculated LDL-C from baseline at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

Time frame:
Week 24
Reported as:
Least squares mean · Milligrams per Deciliter (mg/dL)
Absolute Change in Calculated Low-Density Lipoprotein Cholesterol (LDL-C) From Baseline to Week 24 (ITT Estimand)
Milligrams per Deciliter (mg/dL)Placebo IV Q4WEvinacumab 15 mg/kg IV Q4W
Absolute Change in Calculated Low-Density Lipoprotein Cholesterol (LDL-C) From Baseline to Week 24 (ITT Estimand)-2.6 ± 17.6-134.7 ± 12.4
Statistical analysis
  • Placebo IV Q4W vs Evinacumab 15 mg/kg IV Q4W · Mixed-effect Model Repeat Measure (MMRM) · p = < 0.0001 · Least squares (ls) mean difference: -132.1 · 95% CI -175.3 to -88.9
SecondaryPercentage of Participants Who Met United States (US) Apheresis Eligibility Criteria at Week 24 (ITT Estimand)

US apheresis eligibility criteria included participants who had inadequate response to diet and LMTs after 6 months of treatment and with functional Homozygous familial hypercholesterolemia (HoFH) or Heterozygous familial hypercholesterolemia (HeFH) (with 0-1 risk factor) with LDL-C ≥ 300 mg/dL (7.77 mmol/L). Percentage of participants who met US apheresis eligibility criteria at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

Time frame:
At Week 24
Reported as:
Number · Percentage of Participants
Percentage of Participants Who Met United States (US) Apheresis Eligibility Criteria at Week 24 (ITT Estimand)
Percentage of ParticipantsPlacebo IV Q4WEvinacumab 15 mg/kg IV Q4W
Percentage of Participants Who Met United States (US) Apheresis Eligibility Criteria at Week 24 (ITT Estimand)22.77.0
Statistical analysis
  • Placebo IV Q4W vs Evinacumab 15 mg/kg IV Q4W · Logistic Regression Models Analyses · p = = 0.0845 · Odds ratio (or): 0.1 · 95% CI 0 to 1.3
SecondaryPercentage of Participants With Low-Density Lipoprotein Cholesterol (LDL-C) <100 Milligrams Per Deciliter (mg/dL) (2.59 Millimoles Per Liter [mmol/L]) at Week 24 (ITT Estimand)

Percentage of participants with LDL-C value \<100 mg/dL (2.59 mmol/L) in the DBTP at Week 24 was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analysed according to the treatment group allocated by randomization (i.e., as randomized participant group).

Time frame:
At Week 24
Reported as:
Number · Percentage of Participants
Percentage of Participants With Low-Density Lipoprotein Cholesterol (LDL-C) <100 Milligrams Per Deciliter (mg/dL) (2.59 Millimoles Per Liter [mmol/L]) at Week 24 (ITT Estimand)
Percentage of ParticipantsPlacebo IV Q4WEvinacumab 15 mg/kg IV Q4W
Percentage of Participants With Low-Density Lipoprotein Cholesterol (LDL-C) <100 Milligrams Per Deciliter (mg/dL) (2.59 Millimoles Per Liter [mmol/L]) at Week 24 (ITT Estimand)22.746.5
Statistical analysis
  • Placebo IV Q4W vs Evinacumab 15 mg/kg IV Q4W · Logistic Regression Models Analyses · p = = 0.0203 (The p-value is nominal for descriptive purpose only due to statistical hypothesis testing terminated previously.) · Odds ratio (or): 5.7 · 95% CI 1.3 to 24.9
SecondaryPercentage of Participants Who Met European Union (EU) Apheresis Eligibility Criteria at Week 24 (ITT Estimand)

EU apheresis eligibility criteria included participants who had inadequate response to diet and Lipid modifying therapies (LMTs) after 3 months of treatment, Primary prevention: Participants with Familial hypercholesterolemia (FH) with LDL-C \>160 mg/dL (4.2 mmol/L) and Cardiovascular (CV) events in close relatives. Secondary prevention: Participants with progressive CV events with LDL-C \> 120 to 130 mg/dL (3.1-3.4 mmol/L). Percentage of participants who met EU apheresis eligibility criteria at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

Time frame:
At Week 24
Reported as:
Number · Percentage of Participants
Percentage of Participants Who Met European Union (EU) Apheresis Eligibility Criteria at Week 24 (ITT Estimand)
Percentage of ParticipantsPlacebo IV Q4WEvinacumab 15 mg/kg IV Q4W
Percentage of Participants Who Met European Union (EU) Apheresis Eligibility Criteria at Week 24 (ITT Estimand)77.332.6
Statistical analysis
  • Placebo IV Q4W vs Evinacumab 15 mg/kg IV Q4W · Logistic Regression Models Analysis · p = = 0.0004 (The p-value is nominal for descriptive purpose only due to statistical hypothesis testing terminated previously.) · Odds ratio (or): 0.1 · 95% CI 0.0 to 0.3
SecondaryPercentage of Participants With Calculated Low-Density Lipoprotein Cholesterol (LDL-C) <70 mg/dL (1.81 mmol/L) at Week 24 (ITT Estimand)

Percentage of participants with LDL-C \<70 mg/dL (1.81 mmol/L) at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

Time frame:
At Week 24
Reported as:
Number · Percentage of Participants
Percentage of Participants With Calculated Low-Density Lipoprotein Cholesterol (LDL-C) <70 mg/dL (1.81 mmol/L) at Week 24 (ITT Estimand)
Percentage of ParticipantsPlacebo IV Q4WEvinacumab 15 mg/kg IV Q4W
Percentage of Participants With Calculated Low-Density Lipoprotein Cholesterol (LDL-C) <70 mg/dL (1.81 mmol/L) at Week 24 (ITT Estimand)4.527.9
SecondaryPercent Change in Fasting Triglycerides (TG) From Baseline to Week 24 (ITT Estimand)

Percent change from baseline in TG at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

Time frame:
Week 24
Reported as:
Least squares mean · Percent Change
Percent Change in Fasting Triglycerides (TG) From Baseline to Week 24 (ITT Estimand)
Percent ChangePlacebo IV Q4WEvinacumab 15 mg/kg IV Q4W
Percent Change in Fasting Triglycerides (TG) From Baseline to Week 24 (ITT Estimand)-4.6 ± 7.0-55.0 ± 3.1
SecondaryPercent Change in Lipoprotein A (Lp[a]) From Baseline to Week 24 (ITT Estimand)

Percent change in Lp(a) from baseline at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

Time frame:
Week 24
Reported as:
Least squares mean · Percent Change
Percent Change in Lipoprotein A (Lp[a]) From Baseline to Week 24 (ITT Estimand)
Percent ChangePlacebo IV Q4WEvinacumab 15 mg/kg IV Q4W
Percent Change in Lipoprotein A (Lp[a]) From Baseline to Week 24 (ITT Estimand)-3.6 ± 5.8-5.5 ± 4.0
SecondaryAbsolute Change in Apolipoprotein B (Apo B) From Baseline to Week 24 (ITT Estimand)

Absolute change in Apo B from baseline at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

Time frame:
Week 24
Reported as:
Least squares mean · mg/dL
Absolute Change in Apolipoprotein B (Apo B) From Baseline to Week 24 (ITT Estimand)
mg/dLPlacebo IV Q4WEvinacumab 15 mg/kg IV Q4W
Absolute Change in Apolipoprotein B (Apo B) From Baseline to Week 24 (ITT Estimand)-8.0 ± 9.1-74.4 ± 6.3
SecondaryAbsolute Change in Non-High-Density Lipoprotein Cholesterol (Non-HDL-C) From Baseline to Week 24 (ITT Estimand)

Absolute change in non-HDL-C from baseline at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

Time frame:
Week 24
Reported as:
Least squares mean · mg/dL
Absolute Change in Non-High-Density Lipoprotein Cholesterol (Non-HDL-C) From Baseline to Week 24 (ITT Estimand)
mg/dLPlacebo IV Q4WEvinacumab 15 mg/kg IV Q4W
Absolute Change in Non-High-Density Lipoprotein Cholesterol (Non-HDL-C) From Baseline to Week 24 (ITT Estimand)-0.4 ± 17.4-148.0 ± 12.3
SecondaryAbsolute Change in Total Cholesterol (TC) From Baseline to Week 24 (ITT Estimand)

Absolute change in TC from baseline at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

Time frame:
Week 24
Reported as:
Least squares mean · mg/dL
Absolute Change in Total Cholesterol (TC) From Baseline to Week 24 (ITT Estimand)
mg/dLPlacebo IV Q4WEvinacumab 15 mg/kg IV Q4W
Absolute Change in Total Cholesterol (TC) From Baseline to Week 24 (ITT Estimand)-0.4 ± 17.2-161.6 ± 12.2
SecondaryPercent Change in Apolipoprotein CIII (Apo CIII) From Baseline to Week 24 (ITT Estimand)

Percent change in Apo CIII from baseline at Week 24 in the DBTP was reported; value obtained regardless of adherence to study treatment and subsequent therapies (ITT estimand). ITT population included all randomized participants who received at least one dose or part of a dose of double-blind study drug. Participants in the ITT population were analyzed according to the treatment group allocated by randomization (i.e., as randomized participant group).

Time frame:
Week 24
Reported as:
Least squares mean · Percent Change
Percent Change in Apolipoprotein CIII (Apo CIII) From Baseline to Week 24 (ITT Estimand)
Percent ChangePlacebo IV Q4WEvinacumab 15 mg/kg IV Q4W
Percent Change in Apolipoprotein CIII (Apo CIII) From Baseline to Week 24 (ITT Estimand)5.8 ± 5.5-84.1 ± 3.9

Adverse events

Collected over All Adverse Events (AEs) were collected from signature of the informed consent form up until end of study (Week 68) regardless of seriousness or relationship to investigational product (IP).. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Placebo IV Q4W (DBTP)0/21 (0%)0/21 (0%)13/21 (61.9%)
Evinacumab 15 mg/kg (DBTP)0/44 (0%)2/44 (4.5%)20/44 (45.5%)
Placebo IV Q4W (OLTP)0/20 (0%)0/20 (0%)12/20 (60%)
Evinacumab 15 mg/kg (OLTP)0/44 (0%)7/44 (15.9%)19/44 (43.2%)
Most frequent serious events
Showing 10 of 13
Most frequent serious events
EventPlacebo IV Q4W (DBTP)Evinacumab 15 mg/kg (DBTP)Placebo IV Q4W (OLTP)Evinacumab 15 mg/kg (OLTP)
Acute myocardial infarctionCardiac disorders0/210/440/201/44
Angina pectorisCardiac disorders0/210/440/201/44
Angina unstableCardiac disorders0/210/440/201/44
Cardiac failure congestiveCardiac disorders0/210/440/201/44
Coronary artery diseaseCardiac disorders0/210/440/201/44
GlaucomaEye disorders0/210/440/201/44
PyelonephritisInfections and infestations0/210/440/201/44
UrosepsisInfections and infestations0/211/440/200/44
Cardiac procedure complicationInjury, poisoning and procedural complications0/210/440/201/44
Carotid artery restenosisInjury, poisoning and procedural complications0/210/440/201/44
Most frequent other events
Showing 10 of 27
Most frequent other events
EventPlacebo IV Q4W (DBTP)Evinacumab 15 mg/kg (DBTP)Placebo IV Q4W (OLTP)Evinacumab 15 mg/kg (OLTP)
NasopharyngitisInfections and infestations5/217/441/205/44
HeadacheNervous system disorders5/214/441/205/44
Influenza like illnessGeneral disorders0/215/440/202/44
Urinary tract infectionInfections and infestations2/210/440/201/44
ToothacheGastrointestinal disorders2/212/441/201/44
Aspartate aminotransferase increasedInvestigations2/210/440/200/44
MyalgiaMusculoskeletal and connective tissue disorders2/210/440/200/44
NauseaGastrointestinal disorders1/211/440/203/44
Back painMusculoskeletal and connective tissue disorders0/211/440/203/44
RhinorrhoeaRespiratory, thoracic and mediastinal disorders0/213/440/200/44

Baseline characteristics

Age, Continuous
Age, Continuous(Years)Placebo IV Q4WEvinacumab 15 mg/kg IV Q4WTotal
Mean36.7 ± 11.5244.3 ± 16.7841.7 ± 15.54
Age, Customized
Age, Customized(Participants)Placebo IV Q4WEvinacumab 15 mg/kg IV Q4WTotal
≥12 years to <18 years of age112
≥18 years to <45 years of age162339
≥45 years to <65 years of age51116
≥65 years to <75 years of age077
≥75 years of age011
Sex: Female, Male
Sex: Female, Male(Participants)Placebo IV Q4WEvinacumab 15 mg/kg IV Q4WTotal
Female112435
Male111930
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Placebo IV Q4WEvinacumab 15 mg/kg IV Q4WTotal
Hispanic or Latino112
Not Hispanic or Latino203858
Unknown or Not Reported145
Race
Race(Participants)Placebo IV Q4WEvinacumab 15 mg/kg IV Q4WTotal
White173148
Black or African American022
Asian4610
American Indian or Alaska Native000
Native Hawaiian or Other Pacific Islander000
Not Reported022
Other123
Calculated Low-density Lipoprotein Cholesterol (LDL-C)
Calculated Low-density Lipoprotein Cholesterol (LDL-C)(Milligrams per Deciliter (mg/dL))Placebo IV Q4WEvinacumab 15 mg/kg IV Q4WTotal
Mean246.5 ± 153.71259.5 ± 172.40255.1 ± 165.21
Apolipoprotein B (Apo B)
Apolipoprotein B (Apo B)(mg/dL)Placebo IV Q4WEvinacumab 15 mg/kg IV Q4WTotal
Mean175.9 ± 98.76169.1 ± 82.75171.4 ± 87.78
Non-high-density Lipoprotein Cholesterol (non-HDL-C)
Non-high-density Lipoprotein Cholesterol (non-HDL-C)(mg/dL)Placebo IV Q4WEvinacumab 15 mg/kg IV Q4WTotal
Mean269.9 ± 157.81281.9 ± 172.61277.8 ± 166.60

4 further baseline measures are reported on the registry.

08

Study locations

30 sites
  • Regeneron Research Site
    Boca Raton, Florida 33434, United States
  • Regeneron Research Site
    Boston, Massachusetts 02114, United States
  • Regeneron Research Site
    New York, New York 10029, United States
  • Regeneron Research Site
    Cincinnati, Ohio 45227, United States
  • Regeneron Research Site
    Portland, Oregon 97239, United States
  • Regeneron Research Site
    Dallas, Texas 78226, United States
  • Regeneron Research Site
    Camperdown, New South Wales 2050, Australia
  • Regeneron Research Site
    Perth, Western Australia 6000, Australia
  • Regeneron Research Site
    Innsbruck, 6020, Austria
  • Regeneron Research Site
    Chicoutimi, Quebec G7H 7K9, Canada
  • Regeneron Research Site
    Québec, Quebec G1V 4W2, Canada
  • Regeneron Research Site
    Paris, Cedex 75651, France
  • Regeneron Research Site
    Marseille, 13385, France
  • Regeneron Research Site
    Ioánnina, Ioannina 45500, Greece
  • Regeneron Research Site
    Athens, 17674, Greece
  • Regeneron Research Site # 2
    Napoli, 80131, Italy
  • Regeneron Research Site
    Kurume, Fukuoka 830-8522, Japan
  • Regeneron Research Site
    Nishinomiya, Hyogo 662-0918, Japan
  • Regeneron Research Site
    Kanazawa, Ishikawa 920-8641, Japan
  • Regeneron Research Site #3
    Suita, Osaka 565-0871, Japan
  • Regeneron Research Site
    Suita, Osaka 565-8565, Japan
  • Regeneron Research Site
    Osaka, 530-0001, Japan
  • Regeneron Research Site
    Amsterdam, 1105 AZ, Netherlands
  • Regeneron Research Site
    Rotterdam, 3045 PM, Netherlands
  • Regeneron Research Site
    Parktown, Johannesburg 2000, South Africa
  • Regeneron Research Site
    Ivano-Frankivs'k, 76075, Ukraine
  • Regeneron Research Site
    Kharkiv, 61039, Ukraine
  • Regeneron Research Site #2
    Kharkiv, 61176, Ukraine
  • Regeneron Research Site #2
    Kyiv, 02660, Ukraine
  • Regeneron Research Site
    Kyiv, 03680, Ukraine
09

References and documents

Publications

  • Raal FJ, Rosenson RS, Reeskamp LF, Hovingh GK, Kastelein JJP, Rubba P, Ali S, Banerjee P, Chan KC, Gipe DA, Khilla N, Pordy R, Weinreich DM, Yancopoulos GD, Zhang Y, Gaudet D; ELIPSE HoFH Investigators. Evinacumab for Homozygous Familial Hypercholesterolemia. N Engl J Med. 2020 Aug 20;383(8):711-720. doi: 10.1056/NEJMoa2004215. PubMed 32813947 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jan 2018 to primary completion in Jun 2019, 16 months.

Results were first posted in May 2021, 1 year 11 months after primary completion. A results delay was requested in May 2020.

Of 20 phase 3 interventional studies under Homozygous Familial Hypercholesterolemia, half reached primary completion within 22 months of starting (the median), counting those still running; a quarter within 16 and three quarters within 34. This study's 16 months is below that.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 8, 2018
First posted
Jan 16, 2018
StartActual
Jan 18, 2018
Primary completionActual
Jun 10, 2019
CompletionActual
Mar 17, 2020
Results delay requested
May 28, 2020
Results first posted
May 18, 2021
Last update
May 18, 2021
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 18, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03399786
Responsible party
Sponsor
First posted
Jan 16, 2018
Start date
Jan 18, 2018
Primary completion
Jun 10, 2019
Completion
Mar 17, 2020
Results posted
May 18, 2021
Last update
May 18, 2021

Study contacts

Clinical Trial Management
study director · Regeneron Pharmaceuticals

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Evinacumab

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