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An 8-Week Dose-Finding Study to Evaluate the Efficacy and Safety of Alirocumab in Children and Adolescents With Heterozygous Familial Hypercholesterolemia (ODYSSEY KIDS)

Primary Purpose

Hypercholesterolaemia

Status
Completed
Phase
Phase 2
Locations
International
Study Type
Interventional
Intervention
alirocumab SAR236553 (REGN727)
statins
ezetimibe
cholestyramine
fenofibrate
omega-3 fatty acids
nicotinic acid
Sponsored by
Sanofi
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Hypercholesterolaemia

Eligibility Criteria

8 Years - 17 Years (Child)All SexesDoes not accept healthy volunteers

Inclusion criteria :

  • Children and adolescent male and female participants aged of 8 to 17 years at the time of signed informed consent. For Russia only: Male and female participants aged >=12 and <=17 years at the time of signed informed consent.
  • Participants with diagnosis of heterozygous familial hypercholesterolemia (heFH) through genotyping or clinical criteria.
  • Participants treated with optimal dose of statin +/- other LMT(s) or non-statin LMT(s) if statin intolerant at stable dose for at least 4 weeks prior to screening lipid sampling.
  • Participants with calculated LDL-C greater than or equal to 130 mg/dL (>=3.37 mmol/L) at the screening visit.
  • Participants with body weight greater than or equal to 25 kg.
  • Participants aged of 8 to 9 years to be at Tanner stage 1 and participants aged of 10 to 17 years to be at least at Tanner stage 2 in their development.
  • A signed informed consent indicating parental permission with or without participant assent.

Exclusion criteria:

  • Participant with secondary hyperlipidemia.
  • Diagnosis of homozygous familial hypercholesterolemia.
  • Participant who had received lipid apheresis treatment within 2 months prior to the screening period, or has plans to receive it during the study.
  • Known history of type 1 or type 2 diabetes mellitus.
  • Known history of thyroid disease.
  • Known history of hypertension.
  • Fasting triglycerides >350 mg/dL (3.95 mmol/L).
  • Severe renal impairment (i.e., estimated glomerular filtration rate [eGFR] <30 mL/min/1.73 m^2).
  • Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) >2 x upper limit of normal (ULN).
  • Creatinine phosphokinase (CPK) >3 x ULN.

The above information is not intended to contain all considerations relevant to a participant's potential participation in a clinical trial.

Sites / Locations

  • Investigational Site Number 8400002
  • Investigational Site Number 8400005
  • Investigational Site Number 8400001
  • Investigational Site Number 1240001
  • Investigational Site Number 2030001
  • Investigational Site Number 2030003
  • Investigational Site Number 2030002
  • Investigational Site Number 2500001
  • Investigational Site Number 5280001
  • Investigational Site Number 5780001
  • Investigational Site Number 6430001
  • Investigational Site Number 6430004
  • Investigational Site Number 7100001
  • Investigational Site Number 7240004
  • Investigational Site Number 7240001
  • Investigational Site Number 7520001

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm 5

Arm 6

Arm 7

Arm 8

Arm Type

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Arm Label

Cohort 1 - Alirocumab 30 mg Q2W: <50 kg

Cohort 1 - Alirocumab 50 mg Q2W: >=50 kg

Cohort 2 - Alirocumab 40 mg Q2W: <50 kg

Cohort 2 - Alirocumab 75 mg Q2W: >=50 kg

Cohort 3 - Alirocumab 75 mg Q4W: <50 kg

Cohort 3 - Alirocumab 150 mg Q4W: >=50 kg

Cohort 4 - Alirocumab 150 mg Q4W: <50 kg

Cohort 4 - Alirocumab 300 mg Q4W: >=50 kg

Arm Description

Period 1: Participants with body weight less than (<) 50 kilograms (kg) received subcutaneous (SC) injection of alirocumab 30 milligram(mg) administered every 2 weeks (Q2W) up to 8 weeks added to lipid modifying therapy (LMT). Period 2: Participants with body weight < 50 kg received SC injection of alirocumab 30 mg administered Q2W from Week 16 until they started receiving dose matching to Cohort 2 dosage including dose adjustment to body weight as required. Cohort 2 dosage was: if body weight was still < 50 kg, participants received SC injection of alirocumab 40 mg administered Q2W until Week 130; if body weight was > = 50 kg participants received SC injection of alirocumab 75 mg administered Q2W until Week 130.

Period 1: Participants with body weight greater than or equal to (>=) 50 kg received SC injection of alirocumab 50 mg administered Q2W up to 8 weeks added to LMT. Period 2: Participants with body weight >= 50 kg received SC injection of alirocumab 50 mg administered Q2W from Week 16 until switch to Cohort 2 dosage then SC injection of alirocumab 75 mg administered Q2W until Week 130.

Period 1: Participants with body weight < 50 kg received SC injection of alirocumab 40 mg administered Q2W up to 8 weeks added to LMT. Period 2: Participants with body weight < 50 kg received SC injection of alirocumab 40 mg administered Q2W from Week 16 until switch of dosage in Cohorts 1 and 3. If body weight was still < 50 kg, participants continued to receive SC injection of alirocumab 40 mg administered Q2W until Week 130; if body weight was > = 50 kg participants received SC injection of alirocumab 75 mg administered Q2W until Week 130.

Period 1: Participants with body weight >= 50 kg received SC injection of alirocumab 75 mg administered Q2W up to 8 weeks added to LMT. Period 2: Participants with body weight >= 50 kg received SC injection of alirocumab 75 mg administered Q2W from Week 16 until Week 130.

Period 1: Participants with body weight < 50 kg received SC injection of alirocumab 75 mg administered every 4 weeks (Q4W) up to 8 weeks added to LMT. Period 2: Participants with body weight < 50 kg received SC injection of alirocumab 75 mg administered Q4W from Week 14 until switch to Cohort 2 dosage including dose adjustment to body weight as required, then Cohort 2 dosage: if body weight was still < 50 kg, participants received SC injection of alirocumab 40 mg administered Q2W until Week 130; if body weight was > = 50 kg participants received SC injection of alirocumab 75 mg administered Q2W until Week 130.

Period 1: Participants with body weight >= 50 kg received SC injection of alirocumab 150 mg administered Q4W up to Week 8 added to LMT. Period 2: Participants with body weight >= 50 kg received SC injection of alirocumab 150 mg administered Q4W from Week 14 until switch to Cohort 2 dosage then SC injection of alirocumab 75 mg administered Q2W until Week 130.

Period 1: Participants with body weight < 50 kg received SC injection of alirocumab 150 mg administered Q4W up to 12 weeks added to LMT. Period 2: Participants with body weight < 50 kg received SC injection of Alirocumab 150 mg administered Q4W from Week 12 until Week 48.

Period 1: Participants with body weight >= 50 kg received SC injection of alirocumab 300 mg administered Q4W up to 12 weeks added to LMT. Period 2: Participants with body weight >= 50 kg received SC injection of alirocumab 300 mg administered Q4W from Week 12 until Week 48.

Outcomes

Primary Outcome Measures

Percent Change From Baseline in Calculated Low Density Lipoprotein Cholesterol (LDL-C) at Week 8
Percent change in calculated LDL-C was defined as 100*(calculated LDL-C value at Week 8 - calculated LDL-C value at baseline)/calculated LDL-C value at baseline. All available baseline and post-baseline calculated LDL-C value during the OLDFI efficacy treatment period & within one of the analysis windows up to Week 8 were used in the model. OLDFI efficacy treatment period was defined as the period from first investigational medicinal product (IMP) injection to last OLDFI IMP injection + 21 days(for Cohorts 1 & 2) or +35 days (for Cohorts 3 & 4). Adjusted Least-squares (LS) mean & standard error (SE) at Week 8 were obtained from mixed-effect model with repeated measures (MMRM) analysis, with fixed categorical effects of alirocumab dose/dose regimen (30 mg Q2W [<50 kg], 40 mg Q2W [<50 kg], 50 mg Q2W [>=50 kg], 75 mg Q2W [>=50 kg], 75 mg Q4W [<50 kg],150 mg Q4W [>=50 kg], 150 mg Q4W [<50 kg] and 300 mg Q4W ([>=50 kg] dose), time point & dose/dose regimen-by-time point interaction.

Secondary Outcome Measures

Absolute Change From Baseline in Calculated Low Density Lipoprotein Cholesterol (LDL-C) at Week 8
Absolute change in LDL-C was calculated by subtracting baseline value from Week 8 value. Adjusted LS means and SE were obtained using MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction.
Percentage of Participants Achieving Calculated Low Density Lipoprotein Cholesterol (LDL-C) <130 mg/dL (3.37 mmol/L) at Week 8
Combined estimate for percentage of participants was obtained by averaging out all the imputed percentage of participants reaching the level of interest. A two-step multiple imputation procedure was used to address missing values in the mITT population in the two steps respectively; with number of imputations = 1000. In the first step, the monotone missing pattern was induced in the multiply-imputed data. In the second step, the missing data at subsequent visits were imputed using the regression method for continuous variables.
Percentage of Participants Achieving Calculated LDL-C <110 mg/dL (2.84 mmol/L) at Week 8
Combined estimate for percentage of participants was obtained by averaging out all the imputed percentage of participants reaching the level of interest. A two-step multiple imputation procedure was used to address missing values in the mITT population in the two steps respectively; with number of imputations = 1000. In the first step, the monotone missing pattern was induced in the multiply-imputed data. In the second step, the missing data at subsequent visits were imputed using the regression method for continuous variables.
Percent Change From Baseline in Calculated LDL-C at Week 12: Cohort 4
Adjusted LS means and standard error at Week 12 were obtained from MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction.
Percent Change From Baseline in Apolipoprotein (Apo) B at Week 8
Adjusted LS means and SE at Week 8 were obtained from MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction. All available baseline value and post-baseline values in at least one of the analysis windows used in the model.
Percent Change From Baseline in Non-High Density Lipoprotein (HDL-C) at Week 8
Adjusted LS means and SE at Week 8 were obtained from MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction. All available baselines value and post-baseline values in at least one of the analysis windows up to Week 8 were used in the model.
Percent Change From Baseline in Total Cholesterol (Total-C) at Week 8
Adjusted LS means and SE at Week 8 were obtained from MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction. All available baseline values and post-baseline values in at least one of the analysis windows up to Week 8 were used in the model.
Percent Change From Baseline in Lipoprotein(a) at Week 8
Combined estimates and SE were obtained by combining adjusted means and SE from robust regression model analyses of the different imputed data sets. The robust regression models included the fixed categorical effect of alirocumab dose/dose regimen. A two-step multiple imputation procedure was used to address missing values in the mITT population in the two steps respectively (with number of imputations = 1000). In the first step, the monotone missing pattern was induced in the multiply-imputed data. In the second step, the missing data at subsequent visits were imputed using the regression method for continuous variables.
Percent Change From Baseline in Fasting Triglyceride at Week 8
Combined estimates and SE were obtained by combining adjusted means and SE from robust regression model analyses of the different imputed data sets. The robust regression models included the fixed categorical effect of alirocumab dose/dose regimen. A two-step multiple imputation procedure was used to address missing values in the mITT population (in the two steps respectively; with number of imputations = 1000). In the first step, the monotone missing pattern was induced in the multiply-imputed data. In the second step, the missing data at subsequent visits were imputed using the regression method for continuous variables.
Percent Change From Baseline in High Density Lipoprotein Cholesterol (HDL-C) at Week 8
Adjusted LS means and SE at Week 8 were obtained from MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction. All available baseline values and post-baseline values in at least one of the analysis windows up to Week 8 were used in the model.
Percent Change From Baseline in Apolipoprotein A-1 at Week 8
Adjusted LS means and SE at Week 8 were obtained from MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction. All available baseline values and post-baseline values in at least one of the analysis windows up to Week 8 were used in the model.
Absolute Change From Baseline in Apolipoprotein B at Week 8
Adjusted LS means and SE at Week 8 were obtained from MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction. All available baseline values and post-baseline values in at least one of the analysis windows up to Week 8 were used in the model.
Absolute Change From Baseline in Non-High-Density Lipoprotein (Non-HDL-C) at Week 8
Adjusted LS means and SE at Week 8 were obtained from MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction. All available baseline values and post-baseline values in at least one of the analysis windows up to Week 8 were used in the model.
Absolute Change From Baseline in Total Cholesterol (Total-C) at Week 8
Adjusted LS means and SE at Week 8 were obtained from MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction. All available baseline values and post-baseline values in at least one of the analysis windows up to Week 8 were used in the model.
Absolute Change From Baseline in Lipoprotein(a) at Week 8
Combined estimates and SE were obtained by combining adjusted means and SE from robust regression model analyses of the different imputed data sets. The robust regression models included the fixed categorical effect of alirocumab dose/dose regimen. A two-step multiple imputation procedure was used to address missing values in the mITT population (in the two steps respectively; with number of imputations = 1000). In the first step, the monotone missing pattern was induced in the multiply-imputed data. In the second step, the missing data at subsequent visits were imputed using the regression method for continuous variables.
Absolute Change From Baseline in HDL-C at Week 8
Adjusted LS means and SE at Week 8 were obtained from MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction. All available baseline values and post-baseline values in at least one of the analysis windows up to Week 8 were used in the model.
Absolute Change From Baseline in Fasting Triglyceride at Week 8
Combined estimates and SE were obtained by combining adjusted means and SE from robust regression model analyses of the different imputed data sets. The robust regression models included the fixed categorical effect of alirocumab dose/dose regimen. A two-step multiple imputation procedure was used to address missing values in the mITT population (in the two steps respectively; with number of imputations = 1000). In the first step, the monotone missing pattern was induced in the multiply-imputed data. In the second step, the missing data at subsequent visits were imputed using the regression method for continuous variables.
Absolute Change From Baseline in Apolipoprotein A-1 at Week 8
Adjusted LS means and SE at Week 8 were obtained from MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction. All available baseline values and post-baseline values in at least one of the analysis windows up to Week 8 were used in the model.
Absolute Change From Baseline in Ratio Apolipoprotein B/Apolipoprotein A-1 at Week 8
Adjusted LS means and SE at Week 8 were obtained from MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction. All available baseline values and post-baseline values in at least one of the analysis windows up to Week 8 were used in the model.

Full Information

First Posted
August 31, 2016
Last Updated
August 15, 2019
Sponsor
Sanofi
Collaborators
Regeneron Pharmaceuticals
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1. Study Identification

Unique Protocol Identification Number
NCT02890992
Brief Title
An 8-Week Dose-Finding Study to Evaluate the Efficacy and Safety of Alirocumab in Children and Adolescents With Heterozygous Familial Hypercholesterolemia
Acronym
ODYSSEY KIDS
Official Title
An 8-Week Open-Label, Sequential, Repeated Dose-Finding Study to Evaluate the Efficacy and Safety of Alirocumab in Children and Adolescents With Heterozygous Familial Hypercholesterolemia Followed by an Extension Phase
Study Type
Interventional

2. Study Status

Record Verification Date
August 2019
Overall Recruitment Status
Completed
Study Start Date
September 15, 2016 (Actual)
Primary Completion Date
September 13, 2018 (Actual)
Study Completion Date
February 22, 2019 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Sanofi
Collaborators
Regeneron Pharmaceuticals

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
Primary Objective: To evaluate the effect of alirocumab on low-density lipoprotein cholesterol (LDL-C) levels after 8 weeks of treatment in heterozygous familial hypercholesterolemia (heFH) participants aged of 8 to 17 years, with LDL-C >=130 milligrams per deciliter (mg/dL) (3.37 millimoles per litre [mmol/L]) on optimal stable daily dose of statin therapy +/- other lipid modifying therapies (LMTs) or a stable dose of non-statin LMTs in case of intolerance to statins for at least 4 weeks prior to the screening period. Secondary Objective: To evaluate the safety and tolerability of alirocumab. To evaluate the pharmacokinetics profile of alirocumab. To evaluate the effects of alirocumab on other lipid parameters.
Detailed Description
For Cohorts 1 to 3, a study duration of approximately 16-23 weeks (screening period: up to 6 (+1) weeks, open-label dose finding treatment period: 8 weeks, follow up period: 6-8 weeks). For Cohort 4, a study duration of approximately 14-19 weeks (screening period up to 6 [+1] weeks, open-label dose finding treatment period: 12 weeks). Optional extension period: up to a maximum of 2 years for the first participants enrolled in Cohorts 1 to 3, but a maximum of approximately 5 months for the first participants enrolled in Cohort 4. For all participants who declined participation in the phase 3 study, their last alirocumab injection was on December 2018.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Hypercholesterolaemia

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Sequential Assignment
Masking
None (Open Label)
Allocation
Non-Randomized
Enrollment
42 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Cohort 1 - Alirocumab 30 mg Q2W: <50 kg
Arm Type
Experimental
Arm Description
Period 1: Participants with body weight less than (<) 50 kilograms (kg) received subcutaneous (SC) injection of alirocumab 30 milligram(mg) administered every 2 weeks (Q2W) up to 8 weeks added to lipid modifying therapy (LMT). Period 2: Participants with body weight < 50 kg received SC injection of alirocumab 30 mg administered Q2W from Week 16 until they started receiving dose matching to Cohort 2 dosage including dose adjustment to body weight as required. Cohort 2 dosage was: if body weight was still < 50 kg, participants received SC injection of alirocumab 40 mg administered Q2W until Week 130; if body weight was > = 50 kg participants received SC injection of alirocumab 75 mg administered Q2W until Week 130.
Arm Title
Cohort 1 - Alirocumab 50 mg Q2W: >=50 kg
Arm Type
Experimental
Arm Description
Period 1: Participants with body weight greater than or equal to (>=) 50 kg received SC injection of alirocumab 50 mg administered Q2W up to 8 weeks added to LMT. Period 2: Participants with body weight >= 50 kg received SC injection of alirocumab 50 mg administered Q2W from Week 16 until switch to Cohort 2 dosage then SC injection of alirocumab 75 mg administered Q2W until Week 130.
Arm Title
Cohort 2 - Alirocumab 40 mg Q2W: <50 kg
Arm Type
Experimental
Arm Description
Period 1: Participants with body weight < 50 kg received SC injection of alirocumab 40 mg administered Q2W up to 8 weeks added to LMT. Period 2: Participants with body weight < 50 kg received SC injection of alirocumab 40 mg administered Q2W from Week 16 until switch of dosage in Cohorts 1 and 3. If body weight was still < 50 kg, participants continued to receive SC injection of alirocumab 40 mg administered Q2W until Week 130; if body weight was > = 50 kg participants received SC injection of alirocumab 75 mg administered Q2W until Week 130.
Arm Title
Cohort 2 - Alirocumab 75 mg Q2W: >=50 kg
Arm Type
Experimental
Arm Description
Period 1: Participants with body weight >= 50 kg received SC injection of alirocumab 75 mg administered Q2W up to 8 weeks added to LMT. Period 2: Participants with body weight >= 50 kg received SC injection of alirocumab 75 mg administered Q2W from Week 16 until Week 130.
Arm Title
Cohort 3 - Alirocumab 75 mg Q4W: <50 kg
Arm Type
Experimental
Arm Description
Period 1: Participants with body weight < 50 kg received SC injection of alirocumab 75 mg administered every 4 weeks (Q4W) up to 8 weeks added to LMT. Period 2: Participants with body weight < 50 kg received SC injection of alirocumab 75 mg administered Q4W from Week 14 until switch to Cohort 2 dosage including dose adjustment to body weight as required, then Cohort 2 dosage: if body weight was still < 50 kg, participants received SC injection of alirocumab 40 mg administered Q2W until Week 130; if body weight was > = 50 kg participants received SC injection of alirocumab 75 mg administered Q2W until Week 130.
Arm Title
Cohort 3 - Alirocumab 150 mg Q4W: >=50 kg
Arm Type
Experimental
Arm Description
Period 1: Participants with body weight >= 50 kg received SC injection of alirocumab 150 mg administered Q4W up to Week 8 added to LMT. Period 2: Participants with body weight >= 50 kg received SC injection of alirocumab 150 mg administered Q4W from Week 14 until switch to Cohort 2 dosage then SC injection of alirocumab 75 mg administered Q2W until Week 130.
Arm Title
Cohort 4 - Alirocumab 150 mg Q4W: <50 kg
Arm Type
Experimental
Arm Description
Period 1: Participants with body weight < 50 kg received SC injection of alirocumab 150 mg administered Q4W up to 12 weeks added to LMT. Period 2: Participants with body weight < 50 kg received SC injection of Alirocumab 150 mg administered Q4W from Week 12 until Week 48.
Arm Title
Cohort 4 - Alirocumab 300 mg Q4W: >=50 kg
Arm Type
Experimental
Arm Description
Period 1: Participants with body weight >= 50 kg received SC injection of alirocumab 300 mg administered Q4W up to 12 weeks added to LMT. Period 2: Participants with body weight >= 50 kg received SC injection of alirocumab 300 mg administered Q4W from Week 12 until Week 48.
Intervention Type
Drug
Intervention Name(s)
alirocumab SAR236553 (REGN727)
Other Intervention Name(s)
Praluent
Intervention Description
Pharmaceutical form: solution Route of administration: subcutaneous injection
Intervention Type
Drug
Intervention Name(s)
statins
Intervention Description
Pharmaceutical form: tablet Route of administration: oral
Intervention Type
Drug
Intervention Name(s)
ezetimibe
Intervention Description
Pharmaceutical form:tablet Route of administration: oral
Intervention Type
Drug
Intervention Name(s)
cholestyramine
Intervention Description
Pharmaceutical form:tablet Route of administration: oral
Intervention Type
Drug
Intervention Name(s)
fenofibrate
Intervention Description
Pharmaceutical form: tablet Route of administration: oral
Intervention Type
Drug
Intervention Name(s)
omega-3 fatty acids
Intervention Description
Pharmaceutical form: tablet Route of administration: oral
Intervention Type
Drug
Intervention Name(s)
nicotinic acid
Intervention Description
Pharmaceutical form: tablet Route of administration: oral
Primary Outcome Measure Information:
Title
Percent Change From Baseline in Calculated Low Density Lipoprotein Cholesterol (LDL-C) at Week 8
Description
Percent change in calculated LDL-C was defined as 100*(calculated LDL-C value at Week 8 - calculated LDL-C value at baseline)/calculated LDL-C value at baseline. All available baseline and post-baseline calculated LDL-C value during the OLDFI efficacy treatment period & within one of the analysis windows up to Week 8 were used in the model. OLDFI efficacy treatment period was defined as the period from first investigational medicinal product (IMP) injection to last OLDFI IMP injection + 21 days(for Cohorts 1 & 2) or +35 days (for Cohorts 3 & 4). Adjusted Least-squares (LS) mean & standard error (SE) at Week 8 were obtained from mixed-effect model with repeated measures (MMRM) analysis, with fixed categorical effects of alirocumab dose/dose regimen (30 mg Q2W [<50 kg], 40 mg Q2W [<50 kg], 50 mg Q2W [>=50 kg], 75 mg Q2W [>=50 kg], 75 mg Q4W [<50 kg],150 mg Q4W [>=50 kg], 150 mg Q4W [<50 kg] and 300 mg Q4W ([>=50 kg] dose), time point & dose/dose regimen-by-time point interaction.
Time Frame
Baseline, Week 8
Secondary Outcome Measure Information:
Title
Absolute Change From Baseline in Calculated Low Density Lipoprotein Cholesterol (LDL-C) at Week 8
Description
Absolute change in LDL-C was calculated by subtracting baseline value from Week 8 value. Adjusted LS means and SE were obtained using MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction.
Time Frame
Baseline, Week 8
Title
Percentage of Participants Achieving Calculated Low Density Lipoprotein Cholesterol (LDL-C) <130 mg/dL (3.37 mmol/L) at Week 8
Description
Combined estimate for percentage of participants was obtained by averaging out all the imputed percentage of participants reaching the level of interest. A two-step multiple imputation procedure was used to address missing values in the mITT population in the two steps respectively; with number of imputations = 1000. In the first step, the monotone missing pattern was induced in the multiply-imputed data. In the second step, the missing data at subsequent visits were imputed using the regression method for continuous variables.
Time Frame
At Week 8
Title
Percentage of Participants Achieving Calculated LDL-C <110 mg/dL (2.84 mmol/L) at Week 8
Description
Combined estimate for percentage of participants was obtained by averaging out all the imputed percentage of participants reaching the level of interest. A two-step multiple imputation procedure was used to address missing values in the mITT population in the two steps respectively; with number of imputations = 1000. In the first step, the monotone missing pattern was induced in the multiply-imputed data. In the second step, the missing data at subsequent visits were imputed using the regression method for continuous variables.
Time Frame
At Week 8
Title
Percent Change From Baseline in Calculated LDL-C at Week 12: Cohort 4
Description
Adjusted LS means and standard error at Week 12 were obtained from MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction.
Time Frame
Baseline, Week 12
Title
Percent Change From Baseline in Apolipoprotein (Apo) B at Week 8
Description
Adjusted LS means and SE at Week 8 were obtained from MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction. All available baseline value and post-baseline values in at least one of the analysis windows used in the model.
Time Frame
Baseline, Week 8
Title
Percent Change From Baseline in Non-High Density Lipoprotein (HDL-C) at Week 8
Description
Adjusted LS means and SE at Week 8 were obtained from MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction. All available baselines value and post-baseline values in at least one of the analysis windows up to Week 8 were used in the model.
Time Frame
Baseline, Week 8
Title
Percent Change From Baseline in Total Cholesterol (Total-C) at Week 8
Description
Adjusted LS means and SE at Week 8 were obtained from MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction. All available baseline values and post-baseline values in at least one of the analysis windows up to Week 8 were used in the model.
Time Frame
Baseline, Week 8
Title
Percent Change From Baseline in Lipoprotein(a) at Week 8
Description
Combined estimates and SE were obtained by combining adjusted means and SE from robust regression model analyses of the different imputed data sets. The robust regression models included the fixed categorical effect of alirocumab dose/dose regimen. A two-step multiple imputation procedure was used to address missing values in the mITT population in the two steps respectively (with number of imputations = 1000). In the first step, the monotone missing pattern was induced in the multiply-imputed data. In the second step, the missing data at subsequent visits were imputed using the regression method for continuous variables.
Time Frame
Baseline, Week 8
Title
Percent Change From Baseline in Fasting Triglyceride at Week 8
Description
Combined estimates and SE were obtained by combining adjusted means and SE from robust regression model analyses of the different imputed data sets. The robust regression models included the fixed categorical effect of alirocumab dose/dose regimen. A two-step multiple imputation procedure was used to address missing values in the mITT population (in the two steps respectively; with number of imputations = 1000). In the first step, the monotone missing pattern was induced in the multiply-imputed data. In the second step, the missing data at subsequent visits were imputed using the regression method for continuous variables.
Time Frame
Baseline, Week 8
Title
Percent Change From Baseline in High Density Lipoprotein Cholesterol (HDL-C) at Week 8
Description
Adjusted LS means and SE at Week 8 were obtained from MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction. All available baseline values and post-baseline values in at least one of the analysis windows up to Week 8 were used in the model.
Time Frame
Baseline, Week 8
Title
Percent Change From Baseline in Apolipoprotein A-1 at Week 8
Description
Adjusted LS means and SE at Week 8 were obtained from MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction. All available baseline values and post-baseline values in at least one of the analysis windows up to Week 8 were used in the model.
Time Frame
Baseline, Week 8
Title
Absolute Change From Baseline in Apolipoprotein B at Week 8
Description
Adjusted LS means and SE at Week 8 were obtained from MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction. All available baseline values and post-baseline values in at least one of the analysis windows up to Week 8 were used in the model.
Time Frame
Baseline, Week 8
Title
Absolute Change From Baseline in Non-High-Density Lipoprotein (Non-HDL-C) at Week 8
Description
Adjusted LS means and SE at Week 8 were obtained from MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction. All available baseline values and post-baseline values in at least one of the analysis windows up to Week 8 were used in the model.
Time Frame
Baseline, Week 8
Title
Absolute Change From Baseline in Total Cholesterol (Total-C) at Week 8
Description
Adjusted LS means and SE at Week 8 were obtained from MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction. All available baseline values and post-baseline values in at least one of the analysis windows up to Week 8 were used in the model.
Time Frame
Baseline, Week 8
Title
Absolute Change From Baseline in Lipoprotein(a) at Week 8
Description
Combined estimates and SE were obtained by combining adjusted means and SE from robust regression model analyses of the different imputed data sets. The robust regression models included the fixed categorical effect of alirocumab dose/dose regimen. A two-step multiple imputation procedure was used to address missing values in the mITT population (in the two steps respectively; with number of imputations = 1000). In the first step, the monotone missing pattern was induced in the multiply-imputed data. In the second step, the missing data at subsequent visits were imputed using the regression method for continuous variables.
Time Frame
Baseline, Week 8
Title
Absolute Change From Baseline in HDL-C at Week 8
Description
Adjusted LS means and SE at Week 8 were obtained from MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction. All available baseline values and post-baseline values in at least one of the analysis windows up to Week 8 were used in the model.
Time Frame
Baseline, Week 8
Title
Absolute Change From Baseline in Fasting Triglyceride at Week 8
Description
Combined estimates and SE were obtained by combining adjusted means and SE from robust regression model analyses of the different imputed data sets. The robust regression models included the fixed categorical effect of alirocumab dose/dose regimen. A two-step multiple imputation procedure was used to address missing values in the mITT population (in the two steps respectively; with number of imputations = 1000). In the first step, the monotone missing pattern was induced in the multiply-imputed data. In the second step, the missing data at subsequent visits were imputed using the regression method for continuous variables.
Time Frame
Baseline, Week 8
Title
Absolute Change From Baseline in Apolipoprotein A-1 at Week 8
Description
Adjusted LS means and SE at Week 8 were obtained from MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction. All available baseline values and post-baseline values in at least one of the analysis windows up to Week 8 were used in the model.
Time Frame
Baseline, Week 8
Title
Absolute Change From Baseline in Ratio Apolipoprotein B/Apolipoprotein A-1 at Week 8
Description
Adjusted LS means and SE at Week 8 were obtained from MMRM analysis, with fixed categorical effects of alirocumab dose/dose regimen, time point and dose/dose regimen-by-time point interaction. All available baseline values and post-baseline values in at least one of the analysis windows up to Week 8 were used in the model.
Time Frame
Baseline, Week 8

10. Eligibility

Sex
All
Minimum Age & Unit of Time
8 Years
Maximum Age & Unit of Time
17 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion criteria : Children and adolescent male and female participants aged of 8 to 17 years at the time of signed informed consent. For Russia only: Male and female participants aged >=12 and <=17 years at the time of signed informed consent. Participants with diagnosis of heterozygous familial hypercholesterolemia (heFH) through genotyping or clinical criteria. Participants treated with optimal dose of statin +/- other LMT(s) or non-statin LMT(s) if statin intolerant at stable dose for at least 4 weeks prior to screening lipid sampling. Participants with calculated LDL-C greater than or equal to 130 mg/dL (>=3.37 mmol/L) at the screening visit. Participants with body weight greater than or equal to 25 kg. Participants aged of 8 to 9 years to be at Tanner stage 1 and participants aged of 10 to 17 years to be at least at Tanner stage 2 in their development. A signed informed consent indicating parental permission with or without participant assent. Exclusion criteria: Participant with secondary hyperlipidemia. Diagnosis of homozygous familial hypercholesterolemia. Participant who had received lipid apheresis treatment within 2 months prior to the screening period, or has plans to receive it during the study. Known history of type 1 or type 2 diabetes mellitus. Known history of thyroid disease. Known history of hypertension. Fasting triglycerides >350 mg/dL (3.95 mmol/L). Severe renal impairment (i.e., estimated glomerular filtration rate [eGFR] <30 mL/min/1.73 m^2). Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) >2 x upper limit of normal (ULN). Creatinine phosphokinase (CPK) >3 x ULN. The above information is not intended to contain all considerations relevant to a participant's potential participation in a clinical trial.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Clinical Sciences & Operations
Organizational Affiliation
Sanofi
Official's Role
Study Director
Facility Information:
Facility Name
Investigational Site Number 8400002
City
Saint Louis
State/Province
Missouri
ZIP/Postal Code
63110
Country
United States
Facility Name
Investigational Site Number 8400005
City
Charlotte
State/Province
North Carolina
ZIP/Postal Code
28204
Country
United States
Facility Name
Investigational Site Number 8400001
City
Cincinnati
State/Province
Ohio
ZIP/Postal Code
45229
Country
United States
Facility Name
Investigational Site Number 1240001
City
Quebec
ZIP/Postal Code
G1V 4W2
Country
Canada
Facility Name
Investigational Site Number 2030001
City
Brno
ZIP/Postal Code
62500
Country
Czechia
Facility Name
Investigational Site Number 2030003
City
Praha 5 - Motol
ZIP/Postal Code
15006
Country
Czechia
Facility Name
Investigational Site Number 2030002
City
Zlin
ZIP/Postal Code
76275
Country
Czechia
Facility Name
Investigational Site Number 2500001
City
Bron Cedex
ZIP/Postal Code
69677
Country
France
Facility Name
Investigational Site Number 5280001
City
Amsterdam
ZIP/Postal Code
1105AZ
Country
Netherlands
Facility Name
Investigational Site Number 5780001
City
Oslo
Country
Norway
Facility Name
Investigational Site Number 6430001
City
Kemerovo
ZIP/Postal Code
650002
Country
Russian Federation
Facility Name
Investigational Site Number 6430004
City
Saint-Petersburg
ZIP/Postal Code
194100
Country
Russian Federation
Facility Name
Investigational Site Number 7100001
City
Parow
ZIP/Postal Code
7500
Country
South Africa
Facility Name
Investigational Site Number 7240004
City
A Coruna
ZIP/Postal Code
15001
Country
Spain
Facility Name
Investigational Site Number 7240001
City
Madrid
ZIP/Postal Code
28009
Country
Spain
Facility Name
Investigational Site Number 7520001
City
Stockholm
ZIP/Postal Code
171 76
Country
Sweden

12. IPD Sharing Statement

Citations:
PubMed Identifier
32331936
Citation
Daniels S, Caprio S, Chaudhari U, Manvelian G, Baccara-Dinet MT, Brunet A, Scemama M, Loizeau V, Bruckert E. PCSK9 inhibition with alirocumab in pediatric patients with heterozygous familial hypercholesterolemia: The ODYSSEY KIDS study. J Clin Lipidol. 2020 May-Jun;14(3):322-330.e5. doi: 10.1016/j.jacl.2020.03.001. Epub 2020 Mar 28. Erratum In: J Clin Lipidol. 2020 Sep - Oct;14(5):741.
Results Reference
derived

Learn more about this trial

An 8-Week Dose-Finding Study to Evaluate the Efficacy and Safety of Alirocumab in Children and Adolescents With Heterozygous Familial Hypercholesterolemia

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