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Trial · NCT01507831

Long-term Safety and Tolerability of Alirocumab (SAR236553/REGN727) Versus Placebo on Top of Lipid-Modifying Therapy in High Cardiovascular Risk Patients With Hypercholesterolemia (ODYSSEY Long Term)

NCT01507831, Phase 3, Completed, Sanofi; results first posted 2015-12-22

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Long-term Safety and Tolerability of Alirocumab (SAR236553/REGN727) Versus Placebo on Top of Lipid-Modifying Therapy in High Cardiovascular Risk Patients With Hypercholesterolemia (ODYSSEY Long Term). Trials, record NCT01507831. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT01507831

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Trial

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

Title
Long-term Safety and Tolerability of Alirocumab (SAR236553/REGN727) Versus Placebo on Top of Lipid-Modifying Therapy in High Cardiovascular Risk Patients With Hypercholesterolemia (ODYSSEY Long Term)
NCT number
NCT01507831
Status
Completed
Phases
Phase 3
Enrollment
2,341 participants, actual
Lead sponsor
Sanofi
Conditions
Hypercholesterolemia
Interventions
Placebo (for alirocumab), Alirocumab, Lipid-Modifying Therapy (LMT)
First posted
2012-01-11
Last updated
2015-12-22
Other registries' IDs
eudract:2011-002806-59
Results first posted
2015-12-22
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 (eCRF) form.

Source ClinicalTrials.gov

Registered outcomes31

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

ListOutcomeTime frameDescription
PrimaryPercentage of Participants Who Experienced Adverse Events (AEs)Up to 10 weeks after last study drug administration (maximum of 86 weeks)
Reported adverse events are treatment-emergent adverse events that is AEs that developed/worsened during the 'treatment-emergent period' (the time from the first dose of study drug up to the last dose of study drug +70 days).
SecondaryPercent 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) (on-treatment analysis).
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 MMRM model including 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 52Adjusted 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).
SecondaryPercent Change From Baseline in Measured LDL-C at Week 24 - ITT AnalysisFrom Baseline to Week 52
Measured LDL-C values via beta quantification method. Adjusted LS means and standard errors at Week 24 from MMRM model including available post-baseline data from Week 4 to Week 52 regardless of status on- or off-treatment.
SecondaryPercent Change From Baseline in Apolipoprotein (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 52Adjusted 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).
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 to Week 52Adjusted 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).

Outcomes32

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYPercentage of Participants Who Experienced Adverse Events (AEs)Up to 10 weeks after last study drug administration (maximum of 86 weeks)Safety population: all randomized participants who received at least one dose or part of a dose of a study drug (treated).percentage of participantsNUMBER
SECONDARYPercent 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 (mITT) population: 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 Measured LDL-C at Week 24 - ITT AnalysisFrom Baseline to Week 52Participants of the ITT population with one baseline and at least one post-baseline measured LDL-C value on- or off-treatment.percent changeLEAST_SQUARES_MEAN
SECONDARYPercent Change From Baseline in Apolipoprotein (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 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

Results by group70

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

OutcomeGroupCategoryValueSpreadUnits
Percentage of Participants Who Experienced Adverse Events (AEs)Placebo Q2WAny AE82.5percentage of participants
Percentage of Participants Who Experienced Adverse Events (AEs)Alirocumab 150 mg Q2WAny AE81.0percentage of participants
Percentage of Participants Who Experienced Adverse Events (AEs)Placebo Q2WAny Serious AE19.5percentage of participants
Percentage of Participants Who Experienced Adverse Events (AEs)Alirocumab 150 mg Q2WAny Serious AE18.7percentage of participants
Percentage of Participants Who Experienced Adverse Events (AEs)Placebo Q2WAny AE leading to death1.3percentage of participants
Percentage of Participants Who Experienced Adverse Events (AEs)Alirocumab 150 mg Q2WAny AE leading to death0.5percentage of participants
Percentage of Participants Who Experienced Adverse Events (AEs)Placebo Q2WAny AE leading to treatment discontinuation5.8percentage of participants
Percentage of Participants Who Experienced Adverse Events (AEs)Alirocumab 150 mg Q2WAny AE leading to treatment discontinuation7.2percentage of participants
Percent Change From Baseline in Calculated LDL-C at Week 24 - Intent-to-Treat (ITT) AnalysisPlacebo Q2W0.8Standard Error 1.0percent change
Percent Change From Baseline in Calculated LDL-C at Week 24 - Intent-to-Treat (ITT) AnalysisAlirocumab 150 mg Q2W-61.0Standard Error 0.7percent change

Participant flow8

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDPlacebo Q2W788
Overall StudySTARTEDAlirocumab 150 mg Q2W1,553
Overall StudyTreatedPlacebo Q2W788
Overall StudyTreatedAlirocumab 150 mg Q2W1,550
Overall StudyCOMPLETEDPlacebo Q2W595
Overall StudyCOMPLETEDAlirocumab 150 mg Q2W1,113
Overall StudyNOT COMPLETEDPlacebo Q2W193
Overall StudyNOT COMPLETEDAlirocumab 150 mg Q2W440

Adverse events688

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherNasopharyngitisInfections and infestationsPlacebo Q2W103788
otherNasopharyngitisInfections and infestationsAlirocumab 150 mg Q2W2091,550
otherUpper respiratory tract infectionInfections and infestationsPlacebo Q2W68788
otherUpper respiratory tract infectionInfections and infestationsAlirocumab 150 mg Q2W1141,550
otherUrinary tract infectionInfections and infestationsPlacebo Q2W54788
otherUrinary tract infectionInfections and infestationsAlirocumab 150 mg Q2W871,550
otherInfluenzaInfections and infestationsPlacebo Q2W43788
otherInfluenzaInfections and infestationsAlirocumab 150 mg Q2W881,550
otherBronchitisInfections and infestationsPlacebo Q2W40788
otherBronchitisInfections and infestationsAlirocumab 150 mg Q2W831,550

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityPlacebo Q2W
Total, all-cause mortalityAlirocumab 150 mg Q2W
Total, other adverse eventsPlacebo Q2W366788
Total, other adverse eventsAlirocumab 150 mg Q2W7071,550
Total, serious adverse eventsPlacebo Q2W154788
Total, serious adverse eventsAlirocumab 150 mg Q2W2901,550

Papers6

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
25773378RESULTPubMed
27777279DERIVEDPubMed
28391886DERIVEDPubMed
28964736DERIVEDPubMed
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 150 mg Q2W vs Placebo Q2W: 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/NCT01507831

GET https://conductscience.org/api/trials/v1/NCT01507831/registered?page=2