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Trial · NCT01644188

Efficacy and Safety of Alirocumab (SAR236553/REGN727) Versus Ezetimibe on Top of Statin in High Cardiovascular Risk Patients With Hypercholesterolemia (ODYSSEY COMBO II)

NCT01644188, Phase 3, Completed, Sanofi; results first posted 2015-11-06

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Efficacy and Safety of Alirocumab (SAR236553/REGN727) Versus Ezetimibe on Top of Statin in High Cardiovascular Risk Patients With Hypercholesterolemia (ODYSSEY COMBO II). Trials, record NCT01644188. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT01644188

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Efficacy and Safety of Alirocumab (SAR236553/REGN727) Versus Ezetimibe on Top of Statin in High Cardiovascular Risk Patients With Hypercholesterolemia (ODYSSEY COMBO II)
NCT number
NCT01644188
Status
Completed
Phases
Phase 3
Enrollment
720 participants, actual
Lead sponsor
Sanofi
Conditions
Hypercholesterolemia
Interventions
Alirocumab, Placebo (for alirocumab), Ezetimibe, Placebo (for ezetimibe), Lipid Modifying Therapy (LMT)
First posted
2012-07-18
Last updated
2016-08-04
Other registries' IDs
eudract:2011-004130-34
Results first posted
2015-11-06
Limitations and caveats
Manual reclassification was done by the Sponsor for the other reasons of non-completion of study as specified in the electronic case report form (eCRF).

Source ClinicalTrials.gov

Registered outcomes26

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryPercent Change From Baseline in Calculated LDL-C at Week 24 - Intent-to-treat (ITT) AnalysisFrom Baseline to Week 52
Adjusted Least-squares (LS) means and standard errors at Week 24 were obtained from a mixed-effect model with repeated measures (MMRM) to account for missing data. All available post-baseline data from week 4 to week 52 regardless of status on- or off-treatment were used in the model (ITT analysis).
SecondaryPercent Change From Baseline in Calculated LDL--C at Week 24 - On--Treatment AnalysisFrom Baseline to Week 52
Adjusted LS means and standard errors at Week 24 were obtained from MMRM model including available post-baseline on-treatment data from Week 4 to Week 52 (i.e. up to 21 days after last injection or 3 days after the last capsule, whichever came first).
SecondaryPercent Change From Baseline in Calculated LDL-C at Week 12 - ITT AnalysisFrom Baseline to Week 52Adjusted LS means and standard errors at Week 12 from a MMRM including all available post-baseline data from week 4 to week 52 regardless of status on- or off-treatment.
SecondaryPercent Change From Baseline in Calculated LDL-C at Week 12 - On-Treatment AnalysisFrom Baseline to Week 52
Adjusted LS means and standard errors at Week 12 from MMRM model including available post-baseline on-treatment data from Week 4 to Week 52 (i.e. up to 21 days after last injection or 3 days after the last capsule, whichever came first).
SecondaryPercent Change From Baseline in Apolipoprotein B (Apo-B) at Week 24 - ITT AnalysisFrom Baseline to Week 52Adjusted LS means and standard errors at Week 24 from MMRM model including all available post-baseline data from Week 4 to Week 52 regardless of status on- or off-treatment.
SecondaryPercent Change From Baseline in Apo B at Week 24 - On-Treatment AnalysisFrom Baseline to Week 52
Adjusted LS means and standard errors at Week 24 from MMRM model including available post-baseline on-treatment data from Week 4 to Week 52 (i.e. up to 21 days after last injection or 3 days after the last capsule, whichever came first).
SecondaryPercent Change From Baseline in Non-High Density Lipoprotein Cholesterol (Non-HDL-C) at Week 24 - ITT AnalysisFrom Baseline to Week 52Adjusted LS means and standard errors at Week 24 from MMRM model including all available post-baseline data from Week 4 to Week 52 regardless of status on- or off-treatment.
SecondaryPercent Change From Baseline in Non-HDL-C at Week 24 - On-Treatment AnalysisFrom Baseline up to Week 52
Adjusted LS means and standard errors at Week 24 from MMRM model including available post-baseline on-treatment data from Week 4 to Week 52 (i.e. up to 21 days after last injection or 3 days after the last capsule, whichever came first).
SecondaryPercent Change From Baseline in Total Cholesterol (Total-C) at Week 24 - ITT AnalysisFrom Baseline to Week 52Adjusted LS means and standard errors at Week 24 from MMRM model including all available post-baseline data from Week 4 to Week 52 regardless of status on- or off-treatment.
SecondaryPercent Change From Baseline in Apo-B at Week 12 - ITT AnalysisFrom Baseline to Week 52Adjusted LS means and standard errors at Week 12 from MMRM model including all available post-baseline data from Week 4 to Week 52 regardless of status on- or off-treatment.

Outcomes26

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYPercent Change From Baseline in Calculated LDL-C at Week 24 - Intent-to-treat (ITT) AnalysisFrom Baseline to Week 52ITT population: all randomized participants with one baseline and at least one post-baseline calculated LDL-C value on- or off-treatment.percent changeLEAST_SQUARES_MEAN
SECONDARYPercent Change From Baseline in Calculated LDL--C at Week 24 - On--Treatment AnalysisFrom Baseline to Week 52Modified ITT population (mITT): all randomized and treated participants with one baseline and at least one post-baseline calculated LDL-C value on-treatment.percent changeLEAST_SQUARES_MEAN
SECONDARYPercent Change From Baseline in Calculated LDL-C at Week 12 - ITT AnalysisFrom Baseline to Week 52ITT population.percent changeLEAST_SQUARES_MEAN
SECONDARYPercent Change From Baseline in Calculated LDL-C at Week 12 - On-Treatment AnalysisFrom Baseline to Week 52mITT population.percent changeLEAST_SQUARES_MEAN
SECONDARYPercent Change From Baseline in Apolipoprotein B (Apo-B) at Week 24 - ITT AnalysisFrom Baseline to Week 52Participants of the ITT population with one baseline and at least one post-baseline Apo-B value on-or off-treatment (Apo-B ITT population).percent changeLEAST_SQUARES_MEAN
SECONDARYPercent Change From Baseline in Apo B at Week 24 - On-Treatment AnalysisFrom Baseline to Week 52Participants of the mITT population with one baseline and at least one post-baseline Apo B value on-treatment (Apo-B mITT population).percent changeLEAST_SQUARES_MEAN
SECONDARYPercent Change From Baseline in Non-High Density Lipoprotein Cholesterol (Non-HDL-C) at Week 24 - ITT AnalysisFrom Baseline to Week 52Participants of the ITT population with one baseline and at least one post-baseline non-HDL-C value on- or off-treatment (non-HDL-C ITT population).percent changeLEAST_SQUARES_MEAN
SECONDARYPercent Change From Baseline in Non-HDL-C at Week 24 - On-Treatment AnalysisFrom Baseline up to Week 52Participants of the mITT population with one baseline and at least one post-baseline non-HDL-C value on-treatment (non-HDL-C mITT population).percent changeLEAST_SQUARES_MEAN
SECONDARYPercent Change From Baseline in Total Cholesterol (Total-C) at Week 24 - ITT AnalysisFrom Baseline to Week 52Participants of the ITT population with one baseline and at least one post-baseline Total-C value on- or off-treatment (Total-C ITT population).percent changeLEAST_SQUARES_MEAN
SECONDARYPercent Change From Baseline in Apo-B at Week 12 - ITT AnalysisFrom Baseline to Week 52Apo-B ITT population.percent changeLEAST_SQUARES_MEAN

Results by group52

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Percent Change From Baseline in Calculated LDL-C at Week 24 - Intent-to-treat (ITT) AnalysisAlirocumab 75 /up to 150 mg Q2W-50.6Standard Error 1.4percent change
Percent Change From Baseline in Calculated LDL-C at Week 24 - Intent-to-treat (ITT) AnalysisEzetimibe 10 mg-20.7Standard Error 1.9percent change
Percent Change From Baseline in Calculated LDL--C at Week 24 - On--Treatment AnalysisAlirocumab 75 /up to 150 mg Q2W-52.4Standard Error 1.3percent change
Percent Change From Baseline in Calculated LDL--C at Week 24 - On--Treatment AnalysisEzetimibe 10 mg-21.8Standard Error 1.8percent change
Percent Change From Baseline in Calculated LDL-C at Week 12 - ITT AnalysisAlirocumab 75 /up to 150 mg Q2W-51.2Standard Error 1.3percent change
Percent Change From Baseline in Calculated LDL-C at Week 12 - ITT AnalysisEzetimibe 10 mg-21.8Standard Error 1.8percent change
Percent Change From Baseline in Calculated LDL-C at Week 12 - On-Treatment AnalysisAlirocumab 75 /up to 150 mg Q2W-52.4Standard Error 1.2percent change
Percent Change From Baseline in Calculated LDL-C at Week 12 - On-Treatment AnalysisEzetimibe 10 mg-22.7Standard Error 1.7percent change
Percent Change From Baseline in Apolipoprotein B (Apo-B) at Week 24 - ITT AnalysisAlirocumab 75 /up to 150 mg Q2W-40.7Standard Error 1.1percent change
Percent Change From Baseline in Apolipoprotein B (Apo-B) at Week 24 - ITT AnalysisEzetimibe 10 mg-18.3Standard Error 1.5percent change

Participant flow8

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDAlirocumab 75 /up to 150 mg Q2W479
Overall StudySTARTEDEzetimibe 10 mg241
Overall StudyTreatedAlirocumab 75 /up to 150 mg Q2W479
Overall StudyTreatedEzetimibe 10 mg241
Overall StudyCOMPLETEDAlirocumab 75 /up to 150 mg Q2W357
Overall StudyCOMPLETEDEzetimibe 10 mg166
Overall StudyNOT COMPLETEDAlirocumab 75 /up to 150 mg Q2W122
Overall StudyNOT COMPLETEDEzetimibe 10 mg75

Adverse events364

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherUpper respiratory tract infectionInfections and infestationsAlirocumab 75/Up to 150 mg Q2W42479
otherUpper respiratory tract infectionInfections and infestationsEzetimibe 10 mg17241
otherNasopharyngitisInfections and infestationsAlirocumab 75/Up to 150 mg Q2W23479
otherNasopharyngitisInfections and infestationsEzetimibe 10 mg15241
otherInfluenzaInfections and infestationsAlirocumab 75/Up to 150 mg Q2W22479
otherInfluenzaInfections and infestationsEzetimibe 10 mg16241
otherDizzinessNervous system disordersAlirocumab 75/Up to 150 mg Q2W28479
otherDizzinessNervous system disordersEzetimibe 10 mg18241
otherHeadacheNervous system disordersAlirocumab 75/Up to 150 mg Q2W29479
otherHeadacheNervous system disordersEzetimibe 10 mg13241

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityAlirocumab 75/Up to 150 mg Q2W
Total, all-cause mortalityEzetimibe 10 mg
Total, other adverse eventsAlirocumab 75/Up to 150 mg Q2W185479
Total, other adverse eventsEzetimibe 10 mg90241
Total, serious adverse eventsAlirocumab 75/Up to 150 mg Q2W124479
Total, serious adverse eventsEzetimibe 10 mg60241

Papers5

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
25240705BACKGROUNDPubMed
25687353RESULTPubMed
27777279DERIVEDPubMed
30183102DERIVEDPubMed
34298554DERIVEDPubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons1

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

Comparison
Alirocumab 75/Up to 150 mg Q2W vs Ezetimibe 10 mg: serious adverse events

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT01644188

GET https://conductscience.org/api/trials/v1/NCT01644188/registered?page=2