Open-Label Extension of Study R727-CL-1003 (NCT01266876) to Evaluate the Long-Term Safety and Efficacy of Alirocumab (REGN727) in Participants With Heterozygous Familial Hypercholesterolemia (HeFH)

July 19, 2020 updated by: Regeneron Pharmaceuticals

A Phase 2, Open-Label Extension of Study R727-CL-1003 to Evaluate the Long-Term Safety and Efficacy of REGN727 Administered by Subcutaneous Injection in Patients With Heterozygous Familial Hypercholesterolemia

The primary objective of the study was to assess the long-term safety and tolerability of alirocumab in patients with heFH who were receiving concomitant treatment with hydroxymethyl glutaryl-coenzyme A (HMG-CoA) reductase inhibitors (statins), with or without other lipid-modifying therapies (LMTs).

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
58

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Canada
    • Quebec
      • Chicoutimi, Quebec, Canada
      • Montreal, Quebec, Canada
      • Sainte-Foy, Quebec, Canada
  • United States
    • California
      • Mission Viejo, California, United States
      • Newport Beach, California, United States
      • Thousand Oaks, California, United States
    • Florida
      • Miami, Florida, United States
      • Port Orange, Florida, United States
    • Kansas
      • Kansas City, Kansas, United States
    • Maine
      • Auburn, Maine, United States
    • Missouri
      • Saint Louis, Missouri, United States
    • North Carolina
      • Durham, North Carolina, United States
    • Ohio
      • Cincinnati, Ohio, United States
    • Texas
      • Houston, Texas, United States

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 75 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Key Inclusion Criteria:

  1. Prior participation in and the successful completion of the R727-CL-1003 study (NCT01266876).
  2. Patients must be on a stable daily statin regimen for at least 3 weeks before prior to entry into the study
  3. A negative urine pregnancy at the screening/baseline visit for women of childbearing potential

Key Exclusion Criteria:

  1. Reported a drug-related serious adverse event (SAE) or drug-related clinical or laboratory adverse event (AE) in the R727-CL-1003 study that resulted in early termination or withdrawal
  2. Significant protocol deviation in R727-CL-1003, such as non-compliance by the investigator or patient
  3. Low-density lipoprotein (LDL) apheresis within 12 months before the screening/baseline visit

Note: Other exclusion criteria applied

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: NON_RANDOMIZED
  • Interventional Model: SINGLE_GROUP
  • Masking: NONE

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
PLACEBO_COMPARATOR: Placebo Matched to Alirocumab
Participants who received placebo in parent study (NCT01576484), has received a subcutaneous injection of placebo matched to alirocumab every 2 weeks for 4 years in this study.
Drug: Placebo Matched to Alirocumab
Placebo matched to alirocumab was supplied in a pre-filled syringe and administered subcutaneously (SC) in the abdomen, thigh, or outer upper arm; REGN727(SAR236553) is an anti-PCSK9 (proprotein convertase subtilisin/kexin type 9) antibody
EXPERIMENTAL: Alirocumab 150 mg
Participants who received alirocumab in parent study (NCT01576484), has received a subcutaneous injection of alirocumab 150 milligram (mg) every 2 weeks for 4 years in this study.
Drug: Alirocumab
Alirocumab was supplied in a pre-filled syringe and administered subcutaneously (SC) in the abdomen, thigh, or outer upper arm; REGN727(SAR236553) is an anti-PCSK9 (proprotein convertase subtilisin/kexin type 9) antibody
Other Names:
  • SAR236553
  • REGN727
  • PRALUENT

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Number of Participants Who Experienced Treatment Emergent Adverse Events (TEAEs), Serious TEAEs and TEAEs Leading to Death
Time Frame: Baseline (Day 1 of current study) to end of study (Week 218)
An AE was defined as any untoward medical occurrence in a participant administered a study drug which may or may not have a causal relationship with the study drug. Treatment- emergent adverse events (TEAEs) were defined as AEs that developed or worsened or became serious during on- treatment period (time from the first dose of study drug to the last dose of study drug plus 70 days). A serious adverse event (SAE) was defined as any untoward medical occurrence that resulted in any of the following outcomes: death, life- threatening, required initial or prolonged in-patient hospitalization, persistent or significant disability/incapacity, congenital anomaly/birth defect, or considered as medically important event. Any TEAE included participants with both serious and non-serious AEs.
Baseline (Day 1 of current study) to end of study (Week 218)

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Percent Change in Low-density Lipoprotein Cholesterol (LDL-C) From Baseline in the Current Study to Week 24
Time Frame: Baseline (current study) to Week 24
Percent change for serum LDL-C (Low-density lipoprotein cholesterol) from baseline to Week 24 during the efficacy treatment period, which is defined as the time from the first study drug injection up to 21 days after the last study drug injection in the current study.
Baseline (current study) to Week 24
Percent Change in Low Density Lipoprotein Cholesterol (LDL-C) From Baseline in Current Study to Week 12
Time Frame: Baseline (current study) up to Week 12
Percent change for serum LDL-C (Low-density lipoprotein cholesterol) from baseline to Week 12 during the efficacy treatment period, which is defined as the time from the first study drug injection up to 21 days after the last study drug injection in the current study.
Baseline (current study) up to Week 12
Percent Change in Apolipoprotein (Apo) B, Non-High Density Lipoprotein Cholesterol (HDL-C), and Total Cholesterol From Baseline in Current Study to Week 24
Time Frame: Baseline(current study) up to Week 24
Percent change for Apo B, Non-HDL-C and Total Cholesterol from baseline to Week 24 during the efficacy treatment period, which is defined as the time from the first study drug injection up to 21 days after the last study drug injection in the current study.
Baseline(current study) up to Week 24
Percent Change in Apolipoprotein (Apo) B, Non-High Density Lipoprotein Cholesterol (HDL-C), and Total Cholesterol From Baseline in Current Study to Week 12
Time Frame: Baseline (current study) up to Week 12
Percent change for serum Apo B, Non-HDL-C, and Total Cholesterol from baseline to Week 12 during the efficacy treatment period, which is defined as the time from the first study drug injection up to 21 days after the last study drug injection in the current study.
Baseline (current study) up to Week 12
Percent Change in Low Density Lipoprotein Cholesterol (LDL-C) From Baseline in Current Study to Week 52
Time Frame: Baseline (current study) up to Week 52
Percent change for serum LDL-C from baseline to Week 52 during the efficacy treatment period, which is defined as the time from the first study drug injection up to 21 days after the last study drug injection in the current study.
Baseline (current study) up to Week 52
Percentage of Participants With Low Density Lipoprotein Cholesterol (LDL-C) Less Than (<) 70 Milligrams Per Deciliter (mg/dL) for Prior Myocardial Infarction (MI)/Stroke, or <100 mg/dL [2.59 mmol/L] for Participants Without Prior MI/Stroke at Week 24
Time Frame: At Week 24
Percentage of participants reaching LDL-C goal (ie, LDL-C <70 mg/dL (1.81 millimoles per liter [mmol/L]) in case of prior MI/stroke, or <100 mg/dL [2.59 mmol/L] for participants without prior MI/stroke) at week 24 during the efficacy treatment period, which is defined as the time from the first study drug injection up to 21 days after the last study drug injection in the current study, were reported.
At Week 24
Percent Change in Lipoprotein a (Lp[a]) at Week 24
Time Frame: At Week 24
Percent change in serum lipoprotein a at week 24 during the efficacy treatment period, which is defined as the time from the first study drug injection up to 21 days after the last study drug injection in the current study, was reported.
At Week 24
Percent Change in High Density Lipoprotein Cholesterol (HDL-C) at Week 24 and Week 12
Time Frame: At Week 24 and 12
Percent change for serum High Density Lipoprotein Cholesterol (HDL-C) in the current study at weeks 24 and week 12, during the efficacy treatment period, which is defined as the time from the first study drug injection up to 21 days after the last study drug injection in the current study, was reported.
At Week 24 and 12
Percent Change in Lipoprotein a at Week 12
Time Frame: At Week 12
Percent change for serum Lipoprotein a at Week 12 during the efficacy treatment period, which is defined as the time from the first study drug injection up to 21 days after the last study drug injection in the current study, was reported.
At Week 12
Percent Change in Triglycerides (TG) at Week 24 and Week 12
Time Frame: At Week 24 and 12
Percent change for serum TG at Week 24 and Week 12 during the efficacy treatment period, which is defined as the time from the first study drug injection up to 21 days after the last study drug injection in the current study, was reported.
At Week 24 and 12
Percent Change in Apolipoprotein A-1 (Apo A-1) at Week 24 and Week 12
Time Frame: At Week 24 and Week 12
Percent change for serum Apo A-1 at Week 24 and Week 12 during the efficacy treatment period, which is defined as the time from the first study drug injection up to 21 days after the last study drug injection in the current study, was reported.
At Week 24 and Week 12
Percent Change in Low Density Lipoprotein Cholesterol (LDL-C) From Baseline in the Current Study to the End of Treatment
Time Frame: Baseline (current study) to the End of Treatment (Week 208)
Percent change for serum LDL-C from baseline to Week 208 during the efficacy treatment period, which is defined as the time from the first study drug injection up to 21 days after the last study drug injection in the current study.
Baseline (current study) to the End of Treatment (Week 208)
Percentage of Participants With Low Density Lipoprotein Cholesterol (LDL-C) Less Than (<) 70 Milligrams Per Deciliter (mg/dL) for Prior MI/Stroke, or <100 mg/dL [2.59 mmol/L] for Participants Without Prior MI/Stroke at Week 12, 52 and End of Treatment
Time Frame: At Week 12, 52 and End of Treatment (Week 208)
Percentage of participants reaching LDL-C goal (ie, LDL-C <70 mg/dL (1.81 millimoles per liter [mmol/L]) in case of prior MI/stroke, or <100 mg/dL [2.59 mmol/L] for participants without prior MI/stroke) at week 12, 52 and end of treatment, during the efficacy treatment period, which is defined as the time from the first study drug injection up to 21 days after the last study drug injection in the current study, were reported.
At Week 12, 52 and End of Treatment (Week 208)
Absolute Change in Low-density Lipoprotein Cholesterol (LDL-C) From Baseline in the Current Study to Weeks 12, 24, 52, and End of Treatment
Time Frame: Baseline (current study) to Weeks 12, 24, 52, and End of Treatment (Week 208)
Absolute change was reported for serum LDL-C from baseline to weeks 12, 24, 52, and end of Treatment (Week 208) during the efficacy treatment period, which is defined as the time from the first study drug injection up to 21 days after the last study drug injection in the current study.
Baseline (current study) to Weeks 12, 24, 52, and End of Treatment (Week 208)
Percent Change in Apolipoprotein (Apo) B, Non-High Density Lipoprotein Cholesterol (HDL-C), Total Cholesterol, Lipoprotein a (Lp[a]), HDL-C, Triglycerides, and Apolipoprotein A-1 From Baseline in Current Study to Week 52 and End of Treatment
Time Frame: Baseline (current study) up to Weeks 52 and End of Treatment (Week 208)
Percent change was reported for serum (Apo B), non-HDL-C, total-C, Lp(a), HDL-C, TG, and Apo A-1 from baseline to weeks 52 and end of treatment (Week 208) during the efficacy treatment period, which is defined as the time from the first study drug injection up to 21 days after the last study drug injection in the current study.
Baseline (current study) up to Weeks 52 and End of Treatment (Week 208)
Change in Ratio in Apolipoprotein (Apo) B/Apo A-1 From Baseline in Current Study to Week 12, 24, 52, and End of Treatment.
Time Frame: Baseline (current study) to Weeks 12, 24, 52, and End of Treatment (Week 208)
Change in ratio in Apolipoprotein (Apo) B/Apo A-1 from baseline in current Study to week 12, 24, 52, and end of treatment (Week 208) during the efficacy treatment period, which is defined as the time from the first study drug injection up to 21 days after the last study drug injection in the current study.
Baseline (current study) to Weeks 12, 24, 52, and End of Treatment (Week 208)
Percentage of Participants With Apolipoprotein (Apo) B <80 mg/dL at Week 12, 24, 52, and End of Treatment
Time Frame: At Week 12, 24, 52, and End of Treatment (Week 208)
Percentage of participants was calculated with Apo B <80 mg/dL (0.8 mmol/L) at week 12, 24, 52, and End of Treatment (Week 208) during the efficacy treatment period, which is defined as the time from the first study drug injection up to 21 days after the last study drug injection in the current study.
At Week 12, 24, 52, and End of Treatment (Week 208)
Percentage of Participants With Non-High Density Lipoprotein Cholesterol (HDL-C) <100 mg/dL (2.59 mmol/L) at Week 12, 24, 52, and End of Treatment
Time Frame: At Week 12, 24, 52, and End of Treatment (Week 208)
Percentage of participants was calculated with non-HDL-C <100 mg/dL (2.59 mmol/L) at Weeks 12, 24, 52, and End of Treatment (Week 208) during the efficacy treatment period, which is defined as the time from the first study drug injection up to 21 days after the last study drug injection in the current study.
At Week 12, 24, 52, and End of Treatment (Week 208)
Percentage of Participants With Low Density Lipoprotein Cholesterol (LDL-C) Less Than (<) 70 Milligrams Per Deciliter (mg/dL) and/or ≥ 50% Reduction in LDL-C (if LDL-C >70 mg/dL [1.81 mmol/L]) at Week 12, 24, 52, and End of Treatment
Time Frame: At Week 12, 24, 52, and End of Treatment (Week 208)
Percentage of Participants was calculated with LDL-C <70 mg/dL (1.81 mmol/L) and/or ≥ 50% Reduction in LDL-C (if LDL-C >70 mg/dL [1.81 mmol/L]) at Weeks 12, 24, 52, and End of Treatment (Week 208) during the efficacy treatment period, which is defined as the time from the first study drug injection up to 21 days after the last study drug injection in the current study.
At Week 12, 24, 52, and End of Treatment (Week 208)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Regeneron Pharmaceuticals

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Sanofi

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (ACTUAL)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 28, 2012

Primary Completion (ACTUAL)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 22, 2016

Study Completion (ACTUAL)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 22, 2016

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 27, 2012

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 10, 2012

First Posted (ESTIMATE)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 12, 2012

Study Record Updates

Last Update Posted (ACTUAL)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 5, 2020

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 19, 2020

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2020

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • R727-CL-1032

Drug and device information, study documents

Studies a U.S. FDA-regulated device product

No

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