HypercholesterolemiaPhase 3NCT00202878
IMPROVE-IT: Examining Outcomes in Subjects With Acute Coronary Syndrome: Vytorin (Ezetimibe/Simvastatin) vs Simvastatin (P04103)
A Phase 3 study testing ezetimibe/simvastatin and simvastatin in people with Hypercholesterolemia and Myocardial Infarction, run by Organon and Co.
Trial summary
This is a randomized, active-control, double-blind study of subjects with stabilized high-risk acute coronary syndrome (ACS). The primary objective is to evaluate the clinical benefit of Ezetimibe/Simvastatin Combination 10/40 (single tablet, under the brand VYTORIN in the United States) compared with Simvastatin 40… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Hypercholesterolemia, Myocardial Infarction
- What is being tested?
- ezetimibe/simvastatin and simvastatin
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 18,144 participants
- Where
- No sites listed yet
- Study dates
- 17 Oct 2005to 18 Sep 2014
- Phase
- Phase 3
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Clinically stable participants may be eligible to enroll within 10 days following hospital admission with high-risk acute coronary syndrome (either ST-elevation myocardial infarction [STEMI] or Non-STEMI or unstable angina)
- Participants not taking a statin must have an LDL-C of 125 mg/dl or less. Participants taking a statin must have an LDL-C of 100 mg/dl or less.
Who cannot join
- Pregnant or lactating woman, or intending to become pregnant
- Participant with active liver disease or persistent unexplained serum transaminase elevation
- History of alcohol or drug abuse
- History of sensitivity to statin or ezetimibe
- A participant for whom discontinuation of existing lipid lowering regimen poses an unacceptable risk.
About this study
Official title: A Multicenter, Double-Blind, Randomized Study to Establish the Clinical Benefit and Safety of Vytorin (Ezetimibe/Simvastatin Tablet) vs Simvastatin Monotherapy in High-Risk Subjects Presenting With Acute Coronary Syndrome (IMProved Reduction of Outcomes: Vytorin Efficacy International Trial - IMPROVE IT)
This is a randomized, active-control, double-blind study of subjects with stabilized high-risk acute coronary syndrome (ACS). The primary objective is to evaluate the clinical benefit of Ezetimibe/Simvastatin Combination 10/40 (single tablet, under the brand VYTORIN in the United States) compared with Simvastatin 40 mg. As per the original protocol, if low-density lipoprotein cholesterol (LDL-C) response was inadequate, the dose of simvastatin in the VYTORIN arm or simvastatin arm, could be increased to 80 mg (Note: per June 2011 protocol amendment, criteria for continued use of 80 mg simvastatin were modified and new increases of simvastatin dose to 80 mg were stopped). Clinical benefit will be defined as the reduction in the risk of the occurrence of the composite endpoint of cardiovascular (CV) death, major coronary events, and stroke.
- Conditions
- Hypercholesterolemia, Myocardial Infarction
- Being tested
- ezetimibe/simvastatin, simvastatin, Placebo for simvastatin 40 mg, Placebo for ezetimibe 10 mg/simvastatin 40 mg combination
- Keywords
- hypercholesterolemia, myocardial infarction, cholesterol, randomized controlled trials, acute coronary syndrome, angina
- Medical subject headings
- Hypercholesterolemia, Myocardial Infarction, Acute Coronary Syndrome, Angina Pectoris
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
ezetimibe/simvastatinDrug
Also called Vytorin, Inegy
Ezetimibe/simvastatin 10/40 mg per day from randomization through the end of participation. As per the original protocol, if LDL-C response was inadequate, the dose of simvastatin in the VYTORIN arm or simvastatin arm, could be increased to 80 mg (Note: per June 2011 protocol amendment, criteria for continued use of 80 mg simvastatin were modified and new increases of simvastatin dose to 80 mg were stopped).
simvastatinDrug
Also called Zocor
Simvastatin 40 mg per day from randomization through the end of participation. As per the original protocol, if LDL-C response was inadequate, the dose of simvastatin in the VYTORIN arm or simvastatin arm, could be increased to 80 mg (Note: per June 2011 protocol amendment, criteria for continued use of 80 mg simvastatin were modified and new increases of simvastatin dose to 80 mg were stopped).
Placebo for simvastatin 40 mgDrug
one or two tablets orally daily
Placebo for ezetimibe 10 mg/simvastatin 40 mg combinationDrug
one tablet orally daily.
| Study group | Role | What they receive |
|---|---|---|
| ezetimibe/simvastatin | Experimental | One Ezetimibe 10 mg/simvastatin 40 mg combination tablet and two simvastatin 40 mg placebo tablets once per day. Receives: Drug: ezetimibe/simvastatin; Drug: Placebo for simvastatin 40 mg |
| simvastatin | Active comparator | One simvastatin 40 mg tablet, one ezetimibe/simvastatin combination 10/40 placebo tablet and one simvastatin 40 mg placebo tablet once per day. Receives: Drug: simvastatin; Drug: Placebo for simvastatin 40 mg; Drug: Placebo for ezetimibe 10 mg/simvastatin 40 mg combination |
What is being measured
The primary outcome is the main question the study is designed to answer.
Time to First Occurrence of Cardiovascular Death, Major Coronary Event, or Non-fatal Stroke (Kaplan-Meier Estimate of Percentage of Participants Experiencing a Qualifying Event)
The time (in months) from study start to the first occurrence of any of the following clinical outcomes was recorded: cardiovascular death, major coronary Event (non-fatal myocardial infarction [MI], documented unstable angina [UA] requiring hospitalization, or coronary revascularization with percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) ≥ 30 days after randomization), or non-fatal Stroke. A Clinical Endpoints Committee (CEC) reviewed and adjudicated each suspected efficacy endpoint event while blinded to treatment. Participants who did not have any endpoint event until last visit or who were lost to follow-up and had no event were censored at the time of last available information (last study visit). The Kaplan-Meier estimate reports the percentage of participants who experienced cardiovascular death, major coronary event, or non-fatal stroke within 7 years from randomization.
Measured: Up to approximately 9 years
Secondary outcomes (3)
Time to First Occurrence of Death From Any Cause, Major Coronary Event, or Non-fatal Stroke (Kaplan-Meier Estimate of Percentage of Participants Experiencing a Qualifying Event)
The time (in months) from study start to the first occurrence of any of the following clinical outcomes was recorded: death from any cause, major coronary event (non-fatal myocardial infarction, documented unstable angina requiring hospitalization, or coronary revascularization with percutaneous coronary intervention or coronary artery bypass grafting ≥ 30 days after randomization), or non-fatal stroke. A Clinical Endpoints Committee (CEC) reviewed and adjudicated each suspected efficacy endpoint event while blinded to treatment. Participants who did not have any endpoint event until last visit or who were lost to follow-up and had no event were censored at the time of last available information (last study visit). The Kaplan-Meier estimate reports the percentage of participants who experienced death from any cause, major coronary event, or non-fatal stroke within 7 years from randomization.
Measured: Up to approximately 9 years
Time to First Occurrence of Coronary Heart Disease (CHD) Death, Non-fatal MI, or Urgent Coronary Revascularization With PCI or CABG ≥ 30 Days After Randomization (Kaplan-Meier Estimate of Percentage of Participants Experiencing a Qualifying Event)
The time (in months) from study start to the first occurrence of any of the following clinical outcomes was recorded: CHD death, non-fatal MI, or urgent coronary revascularization with PCI or CABG ≥ 30 days after randomization. A Clinical Endpoints Committee (CEC) reviewed and adjudicated each suspected efficacy endpoint event while blinded to treatment. Participants who did not have any endpoint event until last visit or who were lost to follow-up and had no event were censored at the time of last available information (last study visit). The Kaplan-Meier estimate reports the percentage of participants who experienced CHD death, non-fatal MI, or urgent coronary revascularization with PCI or CABG ≥ 30 days after randomization within 7 years from randomization.
Measured: Up to approximately 9 years
Time to First Occurrence of CV Death, Nonfatal MI, UA With Hospitalization, All Revascularization Occurring ≥30 Days After Randomization, and Non-fatal Stroke (Kaplan-Meier Estimate of Percentage of Participants Experiencing a Qualifying Event)
The time (in months) from study start to the first occurrence of any of the following clinical outcomes was recorded: CV death, non-fatal MI, documented UA that requires admission into a hospital, all revascularization (including non-coronary) occurring at least 30 days after randomization, and non-fatal stroke. A Clinical Endpoints Committee (CEC) reviewed and adjudicated each suspected efficacy endpoint event while blinded to treatment. Participants who did not have any endpoint event until last visit or who were lost to follow-up and had no event were censored at the time of last available information (last study visit). The Kaplan-Meier estimate reports the percentage of participants who experienced CV death, non-fatal MI, unstable angina with hospitalization, all revascularization occurring ≥ 30 days after randomization, and non-fatal stroke within 7 Years from randomization.
Measured: Up to approximately 9 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Sep 2005 (estimated)
- Study start17 Oct 2005
- Primary completion18 Sep 2014
- Study completion18 Sep 2014
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (27)Papers the sponsor has linked to this study.
- Other trials for HypercholesterolemiaStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind
- Who is masked
- Participant, Investigator, Outcomes assessor
- Enrolment
- 18,144 participants (actual)
Sponsor and investigators
- Lead sponsor
- Organon and Co
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Medical Director, Study director, Merck Sharp & Dohme LLC
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00202878
- Sponsor's protocol ID
- P04103
- Other IDs
- MK-0653A-080
- Status last verified
- Feb 2022
- First submitted
- 13 Sep 2005
- Last updated
- 18 Jun 2024
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
- Individual data sharing
- No
Publications
Blazing MA, Giugliano RP, Cannon CP, Musliner TA, Tershakovec AM, White JA, Reist C, McCagg A, Braunwald E, Califf RM. Evaluating cardiovascular event reduction with ezetimibe as an adjunct to simvastatin in 18,144 patients after acute coronary syndromes: final baseline characteristics of the IMPROVE-IT study population. Am Heart J. 2014 Aug;168(2):205-12.e1. doi: 10.1016/j.ahj.2014.05.004. Epub 2014 May 15.
PubMed 25066560Califf RM, Lokhnygina Y, Cannon CP, Stepanavage ME, McCabe CH, Musliner TA, Pasternak RC, Blazing MA, Giugliano RP, Harrington RA, Braunwald E. An update on the IMProved reduction of outcomes: Vytorin Efficacy International Trial (IMPROVE-IT) design. Am Heart J. 2010 May;159(5):705-9. doi: 10.1016/j.ahj.2010.03.004. Epub 2010 Mar 15. No abstract available.
PubMed 20435175Cannon CP, Blazing MA, Giugliano RP, McCagg A, White JA, Theroux P, Darius H, Lewis BS, Ophuis TO, Jukema JW, De Ferrari GM, Ruzyllo W, De Lucca P, Im K, Bohula EA, Reist C, Wiviott SD, Tershakovec AM, Musliner TA, Braunwald E, Califf RM; IMPROVE-IT Investigators. Ezetimibe Added to Statin Therapy after Acute Coronary Syndromes. N Engl J Med. 2015 Jun 18;372(25):2387-97. doi: 10.1056/NEJMoa1410489. Epub 2015 Jun 3.
PubMed 26039521Bohula EA, Giugliano RP, Cannon CP, Zhou J, Murphy SA, White JA, Tershakovec AM, Blazing MA, Braunwald E. Achievement of dual low-density lipoprotein cholesterol and high-sensitivity C-reactive protein targets more frequent with the addition of ezetimibe to simvastatin and associated with better outcomes in IMPROVE-IT. Circulation. 2015 Sep 29;132(13):1224-33. doi: 10.1161/CIRCULATIONAHA.115.018381. Epub 2015 Sep 1.
PubMed 26330412Cheng Y, Zhai S, Zhong W, West RM, Shen J. Improving polygenic risk score based drug response prediction using transfer learning. NPJ Genom Med. 2025 Nov 21;10(1):74. doi: 10.1038/s41525-025-00528-x.
PubMed 41271821Tunnicliffe DJ, Palmer SC, Cashmore BA, Saglimbene VM, Krishnasamy R, Lambert K, Johnson DW, Craig JC, Strippoli GF. HMG CoA reductase inhibitors (statins) for people with chronic kidney disease not requiring dialysis. Cochrane Database Syst Rev. 2023 Nov 29;11(11):CD007784. doi: 10.1002/14651858.CD007784.pub3.
PubMed 38018702Patel SM, Qamar A, Giugliano RP, Jarolim P, Marston NA, Park JG, Blazing MA, Cannon CP, Braunwald E, Morrow DA. Association of Serial High-Sensitivity Cardiac Troponin T With Subsequent Cardiovascular Events in Patients Stabilized After Acute Coronary Syndrome: A Secondary Analysis From IMPROVE-IT. JAMA Cardiol. 2022 Dec 1;7(12):1199-1206. doi: 10.1001/jamacardio.2022.3627.
PubMed 36260325Fordyce CB, Giugliano RP, Cannon CP, Roe MT, Sharma A, Page C, White JA, Lokhnygina Y, Braunwald E, Blazing MA. Cardiovascular Events and Long-Term Risk of Sudden Death Among Stabilized Patients After Acute Coronary Syndrome: Insights From IMPROVE-IT. J Am Heart Assoc. 2022 Feb 15;11(4):e022733. doi: 10.1161/JAHA.121.022733. Epub 2022 Feb 3.
PubMed 35112882Oyama K, Giugliano RP, Blazing MA, Park JG, Tershakovec AM, Sabatine MS, Cannon CP, Braunwald E. Baseline Low-Density Lipoprotein Cholesterol and Clinical Outcomes of Combining Ezetimibe With Statin Therapy in IMPROVE-IT. J Am Coll Cardiol. 2021 Oct 12;78(15):1499-1507. doi: 10.1016/j.jacc.2021.08.011.
PubMed 34620406Giugliano RP, Gencer B, Wiviott SD, Park JG, Fuchs CS, Goessling W, Musliner TA, Tershakovec AM, Blazing MA, Califf R, Cannon CP, Braunwald E. Prospective Evaluation of Malignancy in 17,708 Patients Randomized to Ezetimibe Versus Placebo: Analysis From IMPROVE-IT. JACC CardioOncol. 2020 Sep 15;2(3):385-396. doi: 10.1016/j.jaccao.2020.07.008. eCollection 2020 Sep.
PubMed 34396246Nanna MG, Navar AM, Giugliano RP, White JA, Lokhnygina Y, Mitchel YB, Musliner TA, Cannon CP, Blazing MA. Muscle Complaints or Events in Patients Randomized to Simvastatin or Ezetimibe/Simvastatin. J Am Coll Cardiol. 2020 Feb 25;75(7):835-837. doi: 10.1016/j.jacc.2019.12.022. No abstract available.
PubMed 32081289Bach RG, Cannon CP, Giugliano RP, White JA, Lokhnygina Y, Bohula EA, Califf RM, Braunwald E, Blazing MA. Effect of Simvastatin-Ezetimibe Compared With Simvastatin Monotherapy After Acute Coronary Syndrome Among Patients 75 Years or Older: A Secondary Analysis of a Randomized Clinical Trial. JAMA Cardiol. 2019 Sep 1;4(9):846-854. doi: 10.1001/jamacardio.2019.2306.
PubMed 31314050Sharma A, Sun JL, Lokhnygina Y, Roe MT, Ahmad T, Desai NR, Blazing MA. Patient Phenotypes, Cardiovascular Risk, and Ezetimibe Treatment in Patients After Acute Coronary Syndromes (from IMPROVE-IT). Am J Cardiol. 2019 Apr 15;123(8):1193-1201. doi: 10.1016/j.amjcard.2019.01.034. Epub 2019 Jan 25.
PubMed 30739657Navar AM, Roe MT, White JA, Cannon CP, Lokhnygina Y, Newby LK, Giugliano RP, Tershakovec AM, Braunwald E, Califf RM, Blazing MA. Medication Discontinuation in the IMPROVE-IT Trial. Circ Cardiovasc Qual Outcomes. 2019 Jan;12(1):e005041. doi: 10.1161/CIRCOUTCOMES.118.005041.
PubMed 30630361Bonaca MP, Gutierrez JA, Cannon C, Giugliano R, Blazing M, Park JG, White J, Tershakovec A, Braunwald E. Polyvascular disease, type 2 diabetes, and long-term vascular risk: a secondary analysis of the IMPROVE-IT trial. Lancet Diabetes Endocrinol. 2018 Dec;6(12):934-943. doi: 10.1016/S2213-8587(18)30290-0. Epub 2018 Nov 2.
PubMed 30396865
Study at a glance
From the registry record, last updated by the sponsor on 18 Jun 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Multicenter, Double-Blind, Randomized Study to Establish the Clinical Benefit and Safety of Vytorin (Ezetimibe/Simvastatin Tablet) vs Simvastatin Monotherapy in High-Risk Subjects Presenting With Acute Coronary Syndrome (IMProved Reduction of Outcomes: Vytorin Efficacy International Trial - IMPROVE IT)
- ClinicalTrials.gov ID
- NCT00202878
- Acronym / sponsor ID
- P04103
- Conditions
- Hypercholesterolemia, Myocardial Infarction
- Keywords
- hypercholesterolemia, myocardial infarction, cholesterol, randomized controlled trials, acute coronary syndrome, angina
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 18,144 participants (actual)
- Lead sponsor
- Organon and CoIndustry (pharma, biotech, devices)
- Study start
- 17 Oct 2005 (actual)
- Primary completion
- 18 Sep 2014 (actual)
- Study completion
- 18 Sep 2014 (actual)
- First posted
- 20 Sep 2005 (estimated)
- Results
- Posted 30 Sep 2015
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This is a randomized, active-control, double-blind study of subjects with stabilized high-risk acute coronary syndrome (ACS). The primary objective is to evaluate the clinical benefit of Ezetimibe/Simvastatin Combination 10/40 (single tablet, under the brand VYTORIN in the United States) compared with Simvastatin 40 mg. As per the original protocol, if low-density lipoprotein cholesterol (LDL-C) response was inadequate, the dose of simvastatin in the VYTORIN arm or simvastatin arm, could be increased to 80 mg (Note: per June 2011 protocol amendment, criteria for continued use of 80 mg simvastatin were modified and new increases of simvastatin dose to 80 mg were stopped). Clinical benefit will be defined as the reduction in the risk of the occurrence of the composite endpoint of cardiovascular (CV) death, major coronary events, and stroke.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| ezetimibe/simvastatin | Experimental | Drug: ezetimibe/simvastatin, Drug: Placebo for simvastatin 40 mgOne Ezetimibe 10 mg/simvastatin 40 mg combination tablet and two simvastatin 40 mg placebo tablets once per day. |
| simvastatin | Active comparator | Drug: simvastatin, Drug: Placebo for simvastatin 40 mg, Drug: Placebo for ezetimibe 10 mg/simvastatin 40 mg combinationOne simvastatin 40 mg tablet, one ezetimibe/simvastatin combination 10/40 placebo tablet and one simvastatin 40 mg placebo tablet once per day. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- Clinically stable participants may be eligible to enroll within 10 days following hospital admission with high-risk acute coronary syndrome (either ST-elevation myocardial infarction [STEMI] or Non-STEMI or unstable angina)
- Participants not taking a statin must have an LDL-C of 125 mg/dl or less. Participants taking a statin must have an LDL-C of 100 mg/dl or less.
Key exclusion criteria (5 listed)
- Pregnant or lactating woman, or intending to become pregnant
- Participant with active liver disease or persistent unexplained serum transaminase elevation
- History of alcohol or drug abuse
- History of sensitivity to statin or ezetimibe
- A participant for whom discontinuation of existing lipid lowering regimen poses an unacceptable risk.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| ezetimibe/simvastatinAlso: Vytorin, InegyEzetimibe/simvastatin 10/40 mg per day from randomization through the end of participation. As per the original protocol, if LDL-C response was inadequate, the dose of simvastatin in the VYTORIN arm or simvastatin arm, could be increased to 80 mg (Note: per June 2011 protocol amendment, criteria for continued use of 80 mg simvastatin were modified and new increases of simvastatin dose to 80 mg were stopped). | Drug | ezetimibe/simvastatin |
| simvastatinAlso: ZocorSimvastatin 40 mg per day from randomization through the end of participation. As per the original protocol, if LDL-C response was inadequate, the dose of simvastatin in the VYTORIN arm or simvastatin arm, could be increased to 80 mg (Note: per June 2011 protocol amendment, criteria for continued use of 80 mg simvastatin were modified and new increases of simvastatin dose to 80 mg were stopped). | Drug | simvastatin |
| Placebo for simvastatin 40 mgone or two tablets orally daily | Drug | ezetimibe/simvastatin, simvastatin |
| Placebo for ezetimibe 10 mg/simvastatin 40 mg combinationone tablet orally daily. | Drug | simvastatin |
Primary outcome
Time to First Occurrence of Cardiovascular Death, Major Coronary Event, or Non-fatal Stroke (Kaplan-Meier Estimate of Percentage of Participants Experiencing a Qualifying Event)
Time frame: Up to approximately 9 years
The time (in months) from study start to the first occurrence of any of the following clinical outcomes was recorded: cardiovascular death, major coronary Event (non-fatal myocardial infarction [MI], documented unstable angina [UA] requiring hospitalization, or coronary revascularization with percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) ≥ 30 days after randomization), or non-fatal Stroke. A Clinical Endpoints Committee (CEC) reviewed and adjudicated each suspected efficacy endpoint event while blinded to treatment. Participants who did not have any endpoint event until last visit or who were lost to follow-up and had no event were censored at the time of last available information (last study visit). The Kaplan-Meier estimate reports the percentage of participants who experienced cardiovascular death, major coronary event, or non-fatal stroke within 7 years from randomization.
3 secondary outcomes
Time to First Occurrence of Death From Any Cause, Major Coronary Event, or Non-fatal Stroke (Kaplan-Meier Estimate of Percentage of Participants Experiencing a Qualifying Event)
Time frame: Up to approximately 9 years
Time to First Occurrence of Coronary Heart Disease (CHD) Death, Non-fatal MI, or Urgent Coronary Revascularization With PCI or CABG ≥ 30 Days After Randomization (Kaplan-Meier Estimate of Percentage of Participants Experiencing a Qualifying Event)
Time frame: Up to approximately 9 years
Time to First Occurrence of CV Death, Nonfatal MI, UA With Hospitalization, All Revascularization Occurring ≥30 Days After Randomization, and Non-fatal Stroke (Kaplan-Meier Estimate of Percentage of Participants Experiencing a Qualifying Event)
Time frame: Up to approximately 9 years
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 18 Jun 2024.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 25066560Blazing MA, Giugliano RP, Cannon CP, Musliner TA, Tershakovec AM, White JA, Reist C, McCagg A, Braunwald E, Califf RM. Evaluating cardiovascular event reduction with ezetimibe as an adjunct to simvastatin in 18,144 patients after acute coronary syndromes: final baseline characteristics of the IMPROVE-IT study population. Am Heart J. 2014 Aug;168(2):205-12.e1. doi: 10.1016/j.ahj.2014.05.004. Epub 2014 May 15.
- Background: PubMed 20435175Califf RM, Lokhnygina Y, Cannon CP, Stepanavage ME, McCabe CH, Musliner TA, Pasternak RC, Blazing MA, Giugliano RP, Harrington RA, Braunwald E. An update on the IMProved reduction of outcomes: Vytorin Efficacy International Trial (IMPROVE-IT) design. Am Heart J. 2010 May;159(5):705-9. doi: 10.1016/j.ahj.2010.03.004. Epub 2010 Mar 15. No abstract available.
- Background: PubMed 26039521Cannon CP, Blazing MA, Giugliano RP, McCagg A, White JA, Theroux P, Darius H, Lewis BS, Ophuis TO, Jukema JW, De Ferrari GM, Ruzyllo W, De Lucca P, Im K, Bohula EA, Reist C, Wiviott SD, Tershakovec AM, Musliner TA, Braunwald E, Califf RM; IMPROVE-IT Investigators. Ezetimibe Added to Statin Therapy after Acute Coronary Syndromes. N Engl J Med. 2015 Jun 18;372(25):2387-97. doi: 10.1056/NEJMoa1410489. Epub 2015 Jun 3.
- Results publication: PubMed 26330412Bohula EA, Giugliano RP, Cannon CP, Zhou J, Murphy SA, White JA, Tershakovec AM, Blazing MA, Braunwald E. Achievement of dual low-density lipoprotein cholesterol and high-sensitivity C-reactive protein targets more frequent with the addition of ezetimibe to simvastatin and associated with better outcomes in IMPROVE-IT. Circulation. 2015 Sep 29;132(13):1224-33. doi: 10.1161/CIRCULATIONAHA.115.018381. Epub 2015 Sep 1.
- Derived from this study: PubMed 41271821Cheng Y, Zhai S, Zhong W, West RM, Shen J. Improving polygenic risk score based drug response prediction using transfer learning. NPJ Genom Med. 2025 Nov 21;10(1):74. doi: 10.1038/s41525-025-00528-x.
- Derived from this study: PubMed 38018702Tunnicliffe DJ, Palmer SC, Cashmore BA, Saglimbene VM, Krishnasamy R, Lambert K, Johnson DW, Craig JC, Strippoli GF. HMG CoA reductase inhibitors (statins) for people with chronic kidney disease not requiring dialysis. Cochrane Database Syst Rev. 2023 Nov 29;11(11):CD007784. doi: 10.1002/14651858.CD007784.pub3.
- Derived from this study: PubMed 36260325Patel SM, Qamar A, Giugliano RP, Jarolim P, Marston NA, Park JG, Blazing MA, Cannon CP, Braunwald E, Morrow DA. Association of Serial High-Sensitivity Cardiac Troponin T With Subsequent Cardiovascular Events in Patients Stabilized After Acute Coronary Syndrome: A Secondary Analysis From IMPROVE-IT. JAMA Cardiol. 2022 Dec 1;7(12):1199-1206. doi: 10.1001/jamacardio.2022.3627.
- Derived from this study: PubMed 35112882Fordyce CB, Giugliano RP, Cannon CP, Roe MT, Sharma A, Page C, White JA, Lokhnygina Y, Braunwald E, Blazing MA. Cardiovascular Events and Long-Term Risk of Sudden Death Among Stabilized Patients After Acute Coronary Syndrome: Insights From IMPROVE-IT. J Am Heart Assoc. 2022 Feb 15;11(4):e022733. doi: 10.1161/JAHA.121.022733. Epub 2022 Feb 3.
- Derived from this study: PubMed 34620406Oyama K, Giugliano RP, Blazing MA, Park JG, Tershakovec AM, Sabatine MS, Cannon CP, Braunwald E. Baseline Low-Density Lipoprotein Cholesterol and Clinical Outcomes of Combining Ezetimibe With Statin Therapy in IMPROVE-IT. J Am Coll Cardiol. 2021 Oct 12;78(15):1499-1507. doi: 10.1016/j.jacc.2021.08.011.
- Derived from this study: PubMed 34396246Giugliano RP, Gencer B, Wiviott SD, Park JG, Fuchs CS, Goessling W, Musliner TA, Tershakovec AM, Blazing MA, Califf R, Cannon CP, Braunwald E. Prospective Evaluation of Malignancy in 17,708 Patients Randomized to Ezetimibe Versus Placebo: Analysis From IMPROVE-IT. JACC CardioOncol. 2020 Sep 15;2(3):385-396. doi: 10.1016/j.jaccao.2020.07.008. eCollection 2020 Sep.
- Derived from this study: PubMed 32081289Nanna MG, Navar AM, Giugliano RP, White JA, Lokhnygina Y, Mitchel YB, Musliner TA, Cannon CP, Blazing MA. Muscle Complaints or Events in Patients Randomized to Simvastatin or Ezetimibe/Simvastatin. J Am Coll Cardiol. 2020 Feb 25;75(7):835-837. doi: 10.1016/j.jacc.2019.12.022. No abstract available.
- Derived from this study: PubMed 31314050Bach RG, Cannon CP, Giugliano RP, White JA, Lokhnygina Y, Bohula EA, Califf RM, Braunwald E, Blazing MA. Effect of Simvastatin-Ezetimibe Compared With Simvastatin Monotherapy After Acute Coronary Syndrome Among Patients 75 Years or Older: A Secondary Analysis of a Randomized Clinical Trial. JAMA Cardiol. 2019 Sep 1;4(9):846-854. doi: 10.1001/jamacardio.2019.2306.
- Individual participant dataSharing planned: No
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Primary Hypercholesterolemia, Mixed Dyslipidemia
Active, not recruitingPhase 3
A Study of Inclisiran to Prevent Cardiovascular Events in High-risk Primary Prevention Patients.
Primary Prevention of Atherosclerotic Cardiovascular Disease
RecruitingObservational study
Causes and Natural History of Dyslipidemias
Hypercholesterolemia, Atherosclerosis
Active, not recruitingObservational study
Early Detection of Familial Hypercholesterolaemia in Pre-school Children ( CzeCH-IT)
Familial Hypercholesterolaemia
Not yet recruiting
Penn Family Screening for Familial Hypercholesterolemia (NHLBI R33) Trial 3
Familial Hypercholesterolemia
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Medical Director study director
Merck Sharp & Dohme LLC
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing ezetimibe/simvastatin and simvastatin in people with Hypercholesterolemia and Myocardial Infarction, run by Organon and Co.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 18 Jun 2024. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 30 Sep 2015). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Time to First Occurrence of Cardiovascular Death, Major Coronary Event, or Non-fatal Stroke (Kaplan-Meier Estimate of Percentage of Participants Experiencing a Qualifying Event) (time frame: Up to approximately 9 years). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00202878, which also lists 27 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Jun 2024.