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A Comparison of Prasugrel and Clopidogrel in Acute Coronary Syndrome Subjects

A Comparison of Prasugrel and Clopidogrel in Acute Coronary Syndrome Subjects With Unstable Angina/Non-ST-Elevation Myocardial Infarction Who Are Medically Managed

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00699998
Acronym
TRILOGY ACS
Enrollment
9326
Registered
2008-06-18
Start date
2008-06-30
Completion date
2012-04-30
Last updated
2013-05-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acute Coronary Syndrome

Keywords

ACS

Brief summary

This study will evaluate the relative efficacy and safety of prasugrel and clopidogrel in a medically managed Unstable Angina/Non-ST-Elevation Myocardial Infarction (UA/NSTEMI) acute coronary syndrome (ACS) population (that is, patients who are not managed with acute coronary revascularization).

Detailed description

Based upon the significant number of subjects with UA/NSTEMI ACS who are managed medically and their high risk for future cardiovascular events, further exploration of novel treatment strategies for this population, who are under-represented in large clinical trials, is warranted. Potential subjects will be those with a recent UA/NSTEMI event who are to be medically managed. Eligibility for this study will be determined by both the timing of the medical management decision and by prior commercial clopidogrel treatment at the time of randomization. The TaRgeted platelet Inhibition to cLarify the Optimal strateGy to medicallY manage Acute Coronary Syndromes (TRILOGY ACS) Study will assess the efficacy and safety of prasugrel and aspirin compared to the current standard of care, clopidogrel and aspirin, for long-term treatment of medically managed UA/NSTEMI ACS subjects.

Interventions

DRUGClopidogrel

300 milligrams (mg), oral, once as loading dose (in those subjects who initiate study drug with a loading dose); and 75 mg, oral, once daily as maintenance dose through end of study

DRUGPrasugrel

30 milligrams (mg), oral, once as loading dose (in those subjects who initiate study drug with a loading dose); and either 5 mg or 10 mg (based upon weight and age), oral, once daily as maintenance dose through end of study

DRUGCommercially-available Aspirin

Low-dose aspirin, oral, as prescribed by physician through end of study

Sponsors

Daiichi Sankyo Co., Ltd.
CollaboratorINDUSTRY
Duke Clinical Research Institute
CollaboratorOTHER
Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: * Have had a Unstable Angina/Non-ST-Elevation Myocardial Infarction (UA/NSTEMI) index event within 10 days prior to randomization * Had a medical management strategy decision made with reasonable certainty that neither percutaneous coronary intervention (PCI) nor coronary artery bypass graft (CABG) is planned for treatment of the index event * Had at least 1 of 4 specified high-risk features at the time of the UA/NSTEMI event Key

Exclusion criteria

* Decision for medical management greater than 72 hours after onset of index event without commercial clopidogrel treatment within 72 hours following onset of the index event. * Insignificant coronary artery disease (CAD) on coronary angiography if performed for Index Event (absence of greater than or equal to 30% stenosis in at least one native vessel) * Previous or planned PCI or CABG as treatment for the index event * PCI/CABG within previous 30 days * ST-segment elevation myocardial infarction (STEMI) as the index event * Cardiogenic shock, Refractory ventricular arrhythmias, New York Heart Association (NYHA) Class IV congestive heart failure (CHF) within the previous 24 hours * History of ischemic or hemorrhagic stroke, transient ischemic attack (TIA), Intracranial neoplasm, arteriovenous malformation, or aneurysm * History of spontaneous gastrointestinal (GI) or non-GI bleeding requiring hospitalization for treatment, unless definitive treatment has occurred and there is low likelihood of recurrence * Hemodialysis or peritoneal dialysis

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With a Composite Endpoint of Cardiovascular (CV) Death, Myocardial Infarction (MI), or StrokeRandomization through end of study (30-month visit)The percentage of participants is the total number of participants experiencing a CV death, nonfatal MI, or nonfatal stroke divided by number of participants in the treatment arm multiplied by 100. Endpoint events were adjudicated by the Clinical Endpoint Committee.

Secondary

MeasureTime frameDescription
Percentage of Participants With a Composite Endpoint of CV Death, MI, Stroke, or Re-hospitalization for Recurrent Unstable Angina (UA)Randomization through end of study (30-month visit)The percentage of participants is the total number of participants experiencing a CV death, nonfatal MI, nonfatal stroke or re-hospitalization for a recurrent UA divided by number of participants in the treatment arm. Endpoints events were adjudicated by the Clinical Endpoint Committee.
Percentage of Participants With a Composite Endpoint of All-cause Death, MI, or StrokeRandomization through end of study (30-month visit)The percentage of participants is the total number of participants experiencing an all-cause death, nonfatal MI, or nonfatal stroke divided by number of participants in the treatment arm. Endpoint events were adjudicated by the Clinical Endpoint Committee.
Platelet Aggregation MeasuresDay 30 and 12 MonthsPlatelet aggregation was measured by as measured by Accumetrics Verify Now™ P2Y12. Results were reported in P2Y12 Reaction Units (PRU). PRU represents the rate and extent of adenosine (ADP)-stimulated platelet aggregation. Lower values indicate greater P2Y12 platelet inhibition and lower platelet activity and aggregation. ANCOVA Model was used and values were corrected for treatment + baseline value + clopidogrel status at randomization.
Biomarker Measurements of Inflammation/Hemodynamic Stress: Brain Natriuretic Peptide (BNP)Day 30 and 6 MonthsBrain natriuretic peptide (BNP) is secreted by the ventricles of the heart in response to hemodynamic stress and is a biomarker associated with increased CV risk. Results are presented as geometric least squares means (Geometric LS means). Geometric LS means were adjusted for treatment + baseline value + clopidogrel status at randomization.
Percentage of Participants With a Composite Endpoint of CV Death and MIRandomization through end of study (30-month visit)The percentage of participants is the total number of participants experiencing a CV death or nonfatal MI divided by number of participants in the treatment arm. Endpoint events were adjudicated by the Clinical Endpoint Committee.
Genotyping Related to Drug MetabolismBaselineVariation in the genes encoding the cytochrome P450 (CYP) enzymes (CYP2C19) can reduce the ability to metabolize clopidogrel and a reduced platelet response and have been associated with increased rates of CV events including CV death. Participants were classified as extensive metabolizers (EM); reduced metabolizers (RM); or unknown (UNK) metabolizers based on their CYP2C19 genotype. Possible extensive metabolizer (EM) phenotypes include EM=extensive metabolizer, UM=ultra-rapid metabolizer, and EM (non-UM) that are not UM. Possible reduced metabolizer (RM) phenotypes include IM=intermediate metabolizer and PM=poor metabolizer. Genotypes associated with each predicted phenotype are presented; predicted phenotype is presented first followed by the genotype. Percentage=(number of participants with the predicted phenotype and genotype divided by the total number of participants per arm) multiplied by 100.
Economic and Quality of Life OutcomesBaseline and follow-up (24 months)Seattle Angina Questionnaire (SAQ) is a validated, disease-specific questionnaire containing 11 questions (Q) yielding 5 summary scales related to angina: physical limitations, angina stability, angina frequency, treatment satisfaction and disease perception. In this study only angina frequency and the physical limitations scales were assessed. Anginal Frequency was assessed using Q3 and Q4 which consists of a Likert scale ranging from 1 to 6 (higher values equals better quality of life) to assess how often a patient is having symptoms now. Physical limitations was assessed using Q1 which contains 9 items each assessed via Likert scale ranging from 1 to 6 (higher values equals better quality of life) to assess how much a participant's condition is hampering their ability to do what they want to do. Scale scores are transformed to a 0-100 by subtracting the lowest possible score, dividing by the range of the scale, and multiplying by 100. Higher values equal better quality of life.
Summary of All DeathsRandomization through end of study (30-month visit)All deaths, regardless of possible relatedness, with the exception of 1 event, were adjudicated by the Clinical Endpoint Committee (CEC) and are reported in this table. The 1 event which was not adjudicated was a result of the revocation of consent by the participant prior to their death. Deaths possibly related to study drug in the opinion of the investigator are also contained in the Serious Adverse Event (SAE) module.
Biomarker Measurements of Inflammation/Hemodynamic Stress: C-Reactive Protein (CRP)Day 30 and Month 6C-Reactive Protein (CRP) is a biomarker associated with inflammation and increased CV risk. Results are presented as geometric least squares means (Geometric LS means). Geometric LS means were adjusted for treatment + baseline value + clopidogrel status at randomization.

Countries

Argentina, Australia, Austria, Belgium, Brazil, Bulgaria, Canada, Chile, China, Colombia, Costa Rica, Croatia, Czechia, Denmark, Egypt, Finland, France, Germany, Greece, Hungary, India, Ireland, Israel, Italy, Lithuania, Malaysia, Malta, Mexico, Netherlands, New Zealand, Panama, Peru, Philippines, Poland, Portugal, Puerto Rico, Romania, Russia, Serbia, Singapore, Slovakia, South Africa, South Korea, Spain, Sweden, Switzerland, Taiwan, Thailand, Tunisia, Turkey (Türkiye), Ukraine, United Kingdom, United States

Participant flow

Participants by arm

ArmCount
Prasugrel: <75 Years of Age
Prasugrel and Low-dose Commercially-available Aspirin in participants less than (\<) 75 years of age. Commercially-available Aspirin: Low-dose aspirin, oral, as prescribed by physician through end of study. Prasugrel : 30 milligram (mg), oral, once as loading dose (in those subjects who initiate study drug with a loading dose); and either 5 mg or 10 mg (based upon weight) orally, once daily as maintenance dose through end of study.
3,620
Prasugrel: 75 Years of Age or Older
Prasugrel and Low-dose Commercially-available Aspirin in participants 75 years of age or older. Commercially-available Aspirin: Low-dose aspirin, oral, as prescribed by physician through end of study. Prasugrel: 30 milligram (mg), oral, once as loading dose (in those subjects who initiate study drug with a loading dose); and 5 mg orally, once daily as maintenance dose through end of study.
1,043
Clopidogrel: <75 Years of Age
Clopidogrel and Low-Dose Commercially-available Aspirin in participants less than (\<) 75 years of age. Commercially-available Aspirin: Low-dose aspirin, oral, as prescribed by physician through end of study. Clopidogrel: 300 milligram (mg), oral, once as loading dose (in those subjects who initiate study drug with a loading dose); and 75 mg, oral, once daily as maintenance dose through end of study.
3,623
Clopidogrel: 75 Years of Age or Older
Clopidogrel and Low-Dose Commercially-available Aspirin in participants 75 years of age or older. Commercially-available Aspirin: Low-dose aspirin, oral, as prescribed by physician through end of study. Clopidogrel: 300 milligram (mg), oral, once as loading dose (in those subjects who initiate study drug with a loading dose); and 75 mg, oral, once daily as maintenance dose through end of study.
1,040
Total9,326

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyLost to Follow-up2131
Overall StudyPhysician Decision3211
Overall StudyWithdrawal by Subject1948320280

Baseline characteristics

CharacteristicPrasugrel: 75 Years of Age or OlderTotalClopidogrel: 75 Years of Age or OlderPrasugrel: <75 Years of AgeClopidogrel: <75 Years of Age
Age Continuous80.3 years
STANDARD_DEVIATION 4.29
65.7 years
STANDARD_DEVIATION 11.02
80.3 years
STANDARD_DEVIATION 4.39
61.4 years
STANDARD_DEVIATION 8.55
61.5 years
STANDARD_DEVIATION 8.38
Clinical Presentation of UA or NSTEMI
Non-ST-segment Elevation Myocardial Infarction
829 participants6520 participants804 participants2453 participants2434 participants
Clinical Presentation of UA or NSTEMI
Unknown/Did not meet criteria
48 participants504 participants44 participants204 participants208 participants
Clinical Presentation of UA or NSTEMI
Unstable Angina
166 participants2302 participants192 participants963 participants981 participants
History of Coronary Revascularization (PCI or CABG)
No
703 participants6008 participants734 participants2332 participants2239 participants
History of Coronary Revascularization (PCI or CABG)
Unknown
10 participants45 participants7 participants9 participants19 participants
History of Coronary Revascularization (PCI or CABG)
Yes
330 participants3273 participants299 participants1279 participants1365 participants
History of Diabetes
No
678 participants5767 participants675 participants2221 participants2193 participants
History of Diabetes
Unknown
2 participants20 participants0 participants6 participants12 participants
History of Diabetes
Yes
363 participants3539 participants365 participants1393 participants1418 participants
History of Myocardial Infarction (MI)
No
603 participants5259 participants633 participants2035 participants1988 participants
History of Myocardial Infarction (MI)
Unknown
14 participants80 participants14 participants29 participants23 participants
History of Myocardial Infarction (MI)
Yes
426 participants3987 participants393 participants1556 participants1612 participants
Race/Ethnicity, Customized
African
14 participants185 participants12 participants87 participants72 participants
Race/Ethnicity, Customized
Asian
147 participants1932 participants164 participants821 participants800 participants
Race/Ethnicity, Customized
Caucasian
767 participants6276 participants773 participants2362 participants2374 participants
Race/Ethnicity, Customized
Hispanic
109 participants862 participants86 participants321 participants346 participants
Race/Ethnicity, Customized
Other
6 participants70 participants5 participants29 participants30 participants
Race/Ethnicity, Customized
Unknown
0 participants1 participants0 participants0 participants1 participants
Region of Enrollment
Argentina
58 participants357 participants41 participants120 participants138 participants
Region of Enrollment
Australia
6 participants41 participants7 participants13 participants15 participants
Region of Enrollment
Austria
6 participants23 participants5 participants6 participants6 participants
Region of Enrollment
Belgium
7 participants29 participants8 participants7 participants7 participants
Region of Enrollment
Brazil
27 participants362 participants34 participants154 participants147 participants
Region of Enrollment
Bulgaria
48 participants528 participants55 participants216 participants209 participants
Region of Enrollment
Canada
14 participants146 participants13 participants58 participants61 participants
Region of Enrollment
Chile
15 participants89 participants13 participants28 participants33 participants
Region of Enrollment
China
38 participants328 participants44 participants126 participants120 participants
Region of Enrollment
Colombia
21 participants123 participants17 participants40 participants45 participants
Region of Enrollment
Costa Rica
1 participants10 participants2 participants5 participants2 participants
Region of Enrollment
Croatia
28 participants182 participants31 participants63 participants60 participants
Region of Enrollment
Czech Republic
31 participants138 participants38 participants37 participants32 participants
Region of Enrollment
Denmark
7 participants55 participants10 participants21 participants17 participants
Region of Enrollment
Egypt
1 participants132 participants4 participants65 participants62 participants
Region of Enrollment
Finland
3 participants13 participants2 participants3 participants5 participants
Region of Enrollment
France
22 participants99 participants19 participants29 participants29 participants
Region of Enrollment
Germany
20 participants133 participants21 participants46 participants46 participants
Region of Enrollment
Greece
8 participants43 participants11 participants14 participants10 participants
Region of Enrollment
Hungary
43 participants260 participants44 participants86 participants87 participants
Region of Enrollment
India
56 participants1141 participants64 participants513 participants508 participants
Region of Enrollment
Ireland
4 participants18 participants3 participants5 participants6 participants
Region of Enrollment
Israel
33 participants214 participants21 participants75 participants85 participants
Region of Enrollment
Italy
44 participants232 participants47 participants71 participants70 participants
Region of Enrollment
Korea, Republic of
7 participants82 participants7 participants35 participants33 participants
Region of Enrollment
Lithuania
8 participants73 participants4 participants29 participants32 participants
Region of Enrollment
Malaysia
7 participants84 participants9 participants35 participants33 participants
Region of Enrollment
Malta
1 participants22 participants2 participants9 participants10 participants
Region of Enrollment
Mexico
15 participants109 participants16 participants38 participants40 participants
Region of Enrollment
Netherlands
23 participants155 participants24 participants55 participants53 participants
Region of Enrollment
New Zealand
3 participants26 participants3 participants10 participants10 participants
Region of Enrollment
Panama
7 participants70 participants10 participants29 participants24 participants
Region of Enrollment
Peru
19 participants156 participants12 participants58 participants67 participants
Region of Enrollment
Philippines
7 participants127 participants14 participants58 participants48 participants
Region of Enrollment
Poland
59 participants393 participants68 participants137 participants129 participants
Region of Enrollment
Portugal
11 participants54 participants11 participants18 participants14 participants
Region of Enrollment
Romania
26 participants257 participants23 participants103 participants105 participants
Region of Enrollment
Russian Federation
22 participants299 participants14 participants128 participants135 participants
Region of Enrollment
Serbia
4 participants91 participants5 participants42 participants40 participants
Region of Enrollment
Singapore
5 participants13 participants1 participants2 participants5 participants
Region of Enrollment
Slovakia
20 participants162 participants20 participants62 participants60 participants
Region of Enrollment
South Africa
11 participants77 participants12 participants27 participants27 participants
Region of Enrollment
Spain
8 participants43 participants12 participants13 participants10 participants
Region of Enrollment
Sweden
3 participants14 participants1 participants4 participants6 participants
Region of Enrollment
Switzerland
4 participants20 participants6 participants6 participants4 participants
Region of Enrollment
Taiwan
6 participants25 participants9 participants6 participants4 participants
Region of Enrollment
Thailand
17 participants93 participants10 participants30 participants36 participants
Region of Enrollment
Tunisia
3 participants47 participants4 participants20 participants20 participants
Region of Enrollment
Turkey
24 participants200 participants19 participants76 participants81 participants
Region of Enrollment
Ukraine
28 participants707 participants42 participants326 participants311 participants
Region of Enrollment
United Kingdom
21 participants106 participants12 participants33 participants40 participants
Region of Enrollment
United States
133 participants1125 participants116 participants430 participants446 participants
Sex: Female, Male
Female
520 Participants3650 Participants531 Participants1309 Participants1290 Participants
Sex: Female, Male
Male
523 Participants5676 Participants509 Participants2311 Participants2333 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
2,581 / 4,6232,494 / 4,617
serious
Total, serious adverse events
1,573 / 4,6231,594 / 4,617

Outcome results

Primary

Percentage of Participants With a Composite Endpoint of Cardiovascular (CV) Death, Myocardial Infarction (MI), or Stroke

The percentage of participants is the total number of participants experiencing a CV death, nonfatal MI, or nonfatal stroke divided by number of participants in the treatment arm multiplied by 100. Endpoint events were adjudicated by the Clinical Endpoint Committee.

Time frame: Randomization through end of study (30-month visit)

Population: All randomized participants

ArmMeasureValue (NUMBER)
Prasugrel: <75 Years of AgePercentage of Participants With a Composite Endpoint of Cardiovascular (CV) Death, Myocardial Infarction (MI), or Stroke10.06 percentage of participants with an event
Prasugrel: 75 Years of Age or OlderPercentage of Participants With a Composite Endpoint of Cardiovascular (CV) Death, Myocardial Infarction (MI), or Stroke24.64 percentage of participants with an event
Clopidogrel: <75 Years of AgePercentage of Participants With a Composite Endpoint of Cardiovascular (CV) Death, Myocardial Infarction (MI), or Stroke10.96 percentage of participants with an event
Clopidogrel: 75 Years of Age or OlderPercentage of Participants With a Composite Endpoint of Cardiovascular (CV) Death, Myocardial Infarction (MI), or Stroke24.13 percentage of participants with an event
p-value: 0.2195% CI: [0.793, 1.055]Log Rank
p-value: 0.73195% CI: [0.865, 1.225]Log Rank
Secondary

Biomarker Measurements of Inflammation/Hemodynamic Stress: Brain Natriuretic Peptide (BNP)

Brain natriuretic peptide (BNP) is secreted by the ventricles of the heart in response to hemodynamic stress and is a biomarker associated with increased CV risk. Results are presented as geometric least squares means (Geometric LS means). Geometric LS means were adjusted for treatment + baseline value + clopidogrel status at randomization.

Time frame: Day 30 and 6 Months

Population: All randomized participants who received at least 1 dose of study therapy and had baseline and post-baseline BNP measurement at Day 30 or 6 Months.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Prasugrel: <75 Years of AgeBiomarker Measurements of Inflammation/Hemodynamic Stress: Brain Natriuretic Peptide (BNP)Day 30313.494 picograms per milliliter (pg/mL)Standard Error 1.039
Prasugrel: <75 Years of AgeBiomarker Measurements of Inflammation/Hemodynamic Stress: Brain Natriuretic Peptide (BNP)6 Months (n=725, 125, 701, 174)253.434 picograms per milliliter (pg/mL)Standard Error 1.049
Prasugrel: 75 Years of Age or OlderBiomarker Measurements of Inflammation/Hemodynamic Stress: Brain Natriuretic Peptide (BNP)6 Months (n=725, 125, 701, 174)770.132 picograms per milliliter (pg/mL)Standard Error 1.135
Prasugrel: 75 Years of Age or OlderBiomarker Measurements of Inflammation/Hemodynamic Stress: Brain Natriuretic Peptide (BNP)Day 301082.396 picograms per milliliter (pg/mL)Standard Error 1.093
Clopidogrel: <75 Years of AgeBiomarker Measurements of Inflammation/Hemodynamic Stress: Brain Natriuretic Peptide (BNP)Day 30319.345 picograms per milliliter (pg/mL)Standard Error 1.039
Clopidogrel: <75 Years of AgeBiomarker Measurements of Inflammation/Hemodynamic Stress: Brain Natriuretic Peptide (BNP)6 Months (n=725, 125, 701, 174)250.982 picograms per milliliter (pg/mL)Standard Error 1.049
Clopidogrel: 75 Years of Age or OlderBiomarker Measurements of Inflammation/Hemodynamic Stress: Brain Natriuretic Peptide (BNP)Day 30951.359 picograms per milliliter (pg/mL)Standard Error 1.092
Clopidogrel: 75 Years of Age or OlderBiomarker Measurements of Inflammation/Hemodynamic Stress: Brain Natriuretic Peptide (BNP)6 Months (n=725, 125, 701, 174)722.750 picograms per milliliter (pg/mL)Standard Error 1.13
p-value: 0.63195% CI: [0.91, 1.059]ANCOVA
p-value: 0.84495% CI: [0.916, 1.113]ANCOVA
p-value: 0.09895% CI: [0.977, 1.325]ANCOVA
p-value: 0.54595% CI: [0.867, 1.31]ANCOVA
Secondary

Biomarker Measurements of Inflammation/Hemodynamic Stress: C-Reactive Protein (CRP)

C-Reactive Protein (CRP) is a biomarker associated with inflammation and increased CV risk. Results are presented as geometric least squares means (Geometric LS means). Geometric LS means were adjusted for treatment + baseline value + clopidogrel status at randomization.

Time frame: Day 30 and Month 6

Population: All randomized participants who received at least 1 dose of study therapy and had baseline and post-baseline CRP measurement at Day 30 or 6 Months.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Prasugrel: <75 Years of AgeBiomarker Measurements of Inflammation/Hemodynamic Stress: C-Reactive Protein (CRP)6 Months (n=755, 143, 745, 178)2.272 milligrams per liter (mg/L)Standard Error 1.06
Prasugrel: <75 Years of AgeBiomarker Measurements of Inflammation/Hemodynamic Stress: C-Reactive Protein (CRP)Day 302.330 milligrams per liter (mg/L)Standard Error 1.053
Prasugrel: 75 Years of Age or OlderBiomarker Measurements of Inflammation/Hemodynamic Stress: C-Reactive Protein (CRP)Day 302.441 milligrams per liter (mg/L)Standard Error 1.15
Prasugrel: 75 Years of Age or OlderBiomarker Measurements of Inflammation/Hemodynamic Stress: C-Reactive Protein (CRP)6 Months (n=755, 143, 745, 178)1.593 milligrams per liter (mg/L)Standard Error 1.173
Clopidogrel: <75 Years of AgeBiomarker Measurements of Inflammation/Hemodynamic Stress: C-Reactive Protein (CRP)Day 302.287 milligrams per liter (mg/L)Standard Error 1.053
Clopidogrel: <75 Years of AgeBiomarker Measurements of Inflammation/Hemodynamic Stress: C-Reactive Protein (CRP)6 Months (n=755, 143, 745, 178)2.149 milligrams per liter (mg/L)Standard Error 1.059
Clopidogrel: 75 Years of Age or OlderBiomarker Measurements of Inflammation/Hemodynamic Stress: C-Reactive Protein (CRP)6 Months (n=755, 143, 745, 178)1.543 milligrams per liter (mg/L)Standard Error 1.17
Clopidogrel: 75 Years of Age or OlderBiomarker Measurements of Inflammation/Hemodynamic Stress: C-Reactive Protein (CRP)Day 302.226 milligrams per liter (mg/L)Standard Error 1.15
p-value: 0.72795% CI: [0.919, 1.129]ANCOVA
p-value: 0.34695% CI: [0.942, 1.187]ANCOVA
p-value: 0.45895% CI: [0.859, 1.399]ANCOVA
p-value: 0.80295% CI: [0.803, 1.329]ANCOVA
Secondary

Economic and Quality of Life Outcomes

Seattle Angina Questionnaire (SAQ) is a validated, disease-specific questionnaire containing 11 questions (Q) yielding 5 summary scales related to angina: physical limitations, angina stability, angina frequency, treatment satisfaction and disease perception. In this study only angina frequency and the physical limitations scales were assessed. Anginal Frequency was assessed using Q3 and Q4 which consists of a Likert scale ranging from 1 to 6 (higher values equals better quality of life) to assess how often a patient is having symptoms now. Physical limitations was assessed using Q1 which contains 9 items each assessed via Likert scale ranging from 1 to 6 (higher values equals better quality of life) to assess how much a participant's condition is hampering their ability to do what they want to do. Scale scores are transformed to a 0-100 by subtracting the lowest possible score, dividing by the range of the scale, and multiplying by 100. Higher values equal better quality of life.

Time frame: Baseline and follow-up (24 months)

Population: All randomized participants (combined \<75 years and 75 years and older) with SAQ data.

ArmMeasureGroupValue (MEAN)Dispersion
Prasugrel: <75 Years of AgeEconomic and Quality of Life OutcomesBaseline, physical limitations67.8 units on a scaleStandard Deviation 26.1
Prasugrel: <75 Years of AgeEconomic and Quality of Life OutcomesBaseline, angina frequency73.6 units on a scaleStandard Deviation 22.9
Prasugrel: <75 Years of AgeEconomic and Quality of Life Outcomes24 Months, physical limitations (n=420, 412)75.1 units on a scaleStandard Deviation 24.4
Prasugrel: <75 Years of AgeEconomic and Quality of Life Outcomes24 Months, angina frequency (n=420, 412)89.7 units on a scaleStandard Deviation 20
Prasugrel: 75 Years of Age or OlderEconomic and Quality of Life Outcomes24 Months, angina frequency (n=420, 412)89.5 units on a scaleStandard Deviation 19.1
Prasugrel: 75 Years of Age or OlderEconomic and Quality of Life OutcomesBaseline, physical limitations67.0 units on a scaleStandard Deviation 26.5
Prasugrel: 75 Years of Age or OlderEconomic and Quality of Life Outcomes24 Months, physical limitations (n=420, 412)74.5 units on a scaleStandard Deviation 25.7
Prasugrel: 75 Years of Age or OlderEconomic and Quality of Life OutcomesBaseline, angina frequency73.1 units on a scaleStandard Deviation 23.5
p-value: 0.5ANCOVA
p-value: 0.72ANCOVA
p-value: 0.63ANCOVA
p-value: 0.53ANCOVA
Secondary

Genotyping Related to Drug Metabolism

Variation in the genes encoding the cytochrome P450 (CYP) enzymes (CYP2C19) can reduce the ability to metabolize clopidogrel and a reduced platelet response and have been associated with increased rates of CV events including CV death. Participants were classified as extensive metabolizers (EM); reduced metabolizers (RM); or unknown (UNK) metabolizers based on their CYP2C19 genotype. Possible extensive metabolizer (EM) phenotypes include EM=extensive metabolizer, UM=ultra-rapid metabolizer, and EM (non-UM) that are not UM. Possible reduced metabolizer (RM) phenotypes include IM=intermediate metabolizer and PM=poor metabolizer. Genotypes associated with each predicted phenotype are presented; predicted phenotype is presented first followed by the genotype. Percentage=(number of participants with the predicted phenotype and genotype divided by the total number of participants per arm) multiplied by 100.

Time frame: Baseline

Population: All randomized participants who provided a DNA sample.

ArmMeasureGroupValue (NUMBER)
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismIM, *1/*80.1 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *9/*170.0 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, Undefined genotype0.7 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *6/*170.0 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismPM, *2/*23.9 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *2/*90.0 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismEM (non-UM), *1/*138.8 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *2/*130.0 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismPM, *2/*30.3 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismUM, *17/*175.1 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *1/*9, *9/*170.0 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *4/*90.0 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismPM, *2/*40.0 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismIM, *1/*40.4 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismUM, *1/*1724.0 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *1/*90.1 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismPM, *2/*60.0 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismIM, *1/*30.8 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *8/*170.2 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *4/*170.2 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismPM, *2/*80.0 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismIM, *1/*60.0 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismIM, *1/*218.6 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *2/*176.3 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismPM, *3/*30.0 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *13/*170.0 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *1/*130.0 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *3/*170.1 percentage participants with geneotype
Prasugrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *1/*100.0 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *4/*90.0 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, Undefined genotype0.6 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *2/*90.0 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *1/*130.2 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *1/*90.2 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *2/*176.1 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *1/*9, *9/*170.0 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *13/*170.0 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismIM, *1/*30.6 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *2/*130.0 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *8/*170.0 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismIM, *1/*40.0 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUM, *17/*173.6 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismIM, *1/*60.2 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUM, *1/*1725.0 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *6/*170.0 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismIM, *1/*80.5 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismPM, *2/*22.2 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *1/*100.0 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismPM, *2/*30.2 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismEM (non-UM), *1/*142.1 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismPM, *2/*40.2 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *4/*170.2 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismPM, *2/*60.0 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *9/*170.0 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismPM, *2/*80.0 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *3/*170.0 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismPM, *3/*30.0 percentage participants with geneotype
Prasugrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismIM, *1/*218.3 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *1/*130.0 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismUM, *1/*1725.1 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismUM, *17/*175.4 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismEM (non-UM), *1/*135.7 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismIM, *1/*219.8 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismIM, *1/*30.5 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismIM, *1/*40.1 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismIM, *1/*60.0 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismIM, *1/*80.4 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismPM, *2/*24.3 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismPM, *2/*30.3 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismPM, *2/*40.2 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismPM, *2/*60.0 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismPM, *2/*80.0 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismPM, *3/*30.2 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *1/*100.1 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *1/*90.0 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *1/*9, *9/*170.0 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *13/*170.0 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *2/*130.0 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *2/*176.8 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *2/*90.1 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *3/*170.0 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *4/*170.2 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *4/*90.0 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *6/*170.0 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *8/*170.1 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, *9/*170.0 percentage participants with geneotype
Clopidogrel: <75 Years of AgeGenotyping Related to Drug MetabolismUNK, Undefined genotype0.5 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *2/*90.0 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismPM, *3/*30.0 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismPM, *2/*80.0 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismEM (non-UM), *1/*141.2 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *3/*170.3 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismPM, *2/*60.0 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismPM, *2/*40.2 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, Undefined genotype0.6 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *4/*170.0 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismPM, *2/*30.3 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismPM, *2/*23.8 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *9/*170.0 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *4/*90.0 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismIM, *1/*80.3 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismIM, *1/*60.2 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUM, *17/*174.3 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *6/*170.2 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismIM, *1/*40.3 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismIM, *1/*30.6 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *13/*170.0 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUM, *1/*1721.8 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *2/*130.0 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *1/*9, *9/*170.0 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *1/*90.0 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *8/*170.0 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *2/*176.2 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *1/*130.0 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismUNK, *1/*100.0 percentage participants with geneotype
Clopidogrel: 75 Years of Age or OlderGenotyping Related to Drug MetabolismIM, *1/*219.7 percentage participants with geneotype
Secondary

Percentage of Participants With a Composite Endpoint of All-cause Death, MI, or Stroke

The percentage of participants is the total number of participants experiencing an all-cause death, nonfatal MI, or nonfatal stroke divided by number of participants in the treatment arm. Endpoint events were adjudicated by the Clinical Endpoint Committee.

Time frame: Randomization through end of study (30-month visit)

Population: All randomized participants

ArmMeasureValue (NUMBER)
Prasugrel: <75 Years of AgePercentage of Participants With a Composite Endpoint of All-cause Death, MI, or Stroke10.61 percentage of participants with an event
Prasugrel: 75 Years of Age or OlderPercentage of Participants With a Composite Endpoint of All-cause Death, MI, or Stroke27.04 percentage of participants with an event
Clopidogrel: <75 Years of AgePercentage of Participants With a Composite Endpoint of All-cause Death, MI, or Stroke11.12 percentage of participants with an event
Clopidogrel: 75 Years of Age or OlderPercentage of Participants With a Composite Endpoint of All-cause Death, MI, or Stroke26.83 percentage of participants with an event
p-value: 0.2795% CI: [0.81, 1.063]Log Rank
p-value: 0.83195% CI: [0.862, 1.2]Log Rank
Secondary

Percentage of Participants With a Composite Endpoint of CV Death and MI

The percentage of participants is the total number of participants experiencing a CV death or nonfatal MI divided by number of participants in the treatment arm. Endpoint events were adjudicated by the Clinical Endpoint Committee.

Time frame: Randomization through end of study (30-month visit)

Population: All randomized participants

ArmMeasureValue (NUMBER)
Prasugrel: <75 Years of AgePercentage of Participants With a Composite Endpoint of CV Death and MI9.61 percentage of participants with an event
Prasugrel: 75 Years of Age or OlderPercentage of Participants With a Composite Endpoint of CV Death and MI22.53 percentage of participants with an event
Clopidogrel: <75 Years of AgePercentage of Participants With a Composite Endpoint of CV Death and MI10.21 percentage of participants with an event
Clopidogrel: 75 Years of Age or OlderPercentage of Participants With a Composite Endpoint of CV Death and MI22.69 percentage of participants with an event
p-value: 0.38895% CI: [0.812, 1.088]Log Rank
p-value: 0.9995% CI: [0.833, 1.195]Log Rank
Secondary

Percentage of Participants With a Composite Endpoint of CV Death, MI, Stroke, or Re-hospitalization for Recurrent Unstable Angina (UA)

The percentage of participants is the total number of participants experiencing a CV death, nonfatal MI, nonfatal stroke or re-hospitalization for a recurrent UA divided by number of participants in the treatment arm. Endpoints events were adjudicated by the Clinical Endpoint Committee.

Time frame: Randomization through end of study (30-month visit)

Population: All randomized participants

ArmMeasureValue (NUMBER)
Prasugrel: <75 Years of AgePercentage of Participants With a Composite Endpoint of CV Death, MI, Stroke, or Re-hospitalization for Recurrent Unstable Angina (UA)12.13 percentage of participants with an event
Prasugrel: 75 Years of Age or OlderPercentage of Participants With a Composite Endpoint of CV Death, MI, Stroke, or Re-hospitalization for Recurrent Unstable Angina (UA)26.27 percentage of participants with an event
Clopidogrel: <75 Years of AgePercentage of Participants With a Composite Endpoint of CV Death, MI, Stroke, or Re-hospitalization for Recurrent Unstable Angina (UA)12.83 percentage of participants with an event
Clopidogrel: 75 Years of Age or OlderPercentage of Participants With a Composite Endpoint of CV Death, MI, Stroke, or Re-hospitalization for Recurrent Unstable Angina (UA)25.67 percentage of participants with an event
p-value: 0.35395% CI: [0.826, 1.073]Log Rank
p-value: 0.71995% CI: [0.869, 1.218]Log Rank
Secondary

Platelet Aggregation Measures

Platelet aggregation was measured by as measured by Accumetrics Verify Now™ P2Y12. Results were reported in P2Y12 Reaction Units (PRU). PRU represents the rate and extent of adenosine (ADP)-stimulated platelet aggregation. Lower values indicate greater P2Y12 platelet inhibition and lower platelet activity and aggregation. ANCOVA Model was used and values were corrected for treatment + baseline value + clopidogrel status at randomization.

Time frame: Day 30 and 12 Months

Population: All participants who received at least 1 dose of study drug, and had a baseline and post-baseline PRU measurement at Day 30 or Month 12.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Prasugrel: <75 Years of AgePlatelet Aggregation MeasuresDay 3093.280 P2Y12 Reaction Units (PRU)Standard Error 3.804
Prasugrel: <75 Years of AgePlatelet Aggregation MeasuresMonth 12 (n=386, 76, 400, 103)94.529 P2Y12 Reaction Units (PRU)Standard Error 5.706
Prasugrel: 75 Years of Age or OlderPlatelet Aggregation MeasuresMonth 12 (n=386, 76, 400, 103)135.096 P2Y12 Reaction Units (PRU)Standard Error 14.631
Prasugrel: 75 Years of Age or OlderPlatelet Aggregation MeasuresDay 30151.872 P2Y12 Reaction Units (PRU)Standard Error 8.148
Clopidogrel: <75 Years of AgePlatelet Aggregation MeasuresDay 30193.489 P2Y12 Reaction Units (PRU)Standard Error 3.78
Clopidogrel: <75 Years of AgePlatelet Aggregation MeasuresMonth 12 (n=386, 76, 400, 103)199.003 P2Y12 Reaction Units (PRU)Standard Error 5.663
Clopidogrel: 75 Years of Age or OlderPlatelet Aggregation MeasuresDay 30200.285 P2Y12 Reaction Units (PRU)Standard Error 8.238
Clopidogrel: 75 Years of Age or OlderPlatelet Aggregation MeasuresMonth 12 (n=386, 76, 400, 103)181.360 P2Y12 Reaction Units (PRU)Standard Error 14.38
p-value: <0.00195% CI: [-107.872, -92.545]ANCOVA
p-value: <0.00195% CI: [-115.383, -93.566]ANCOVA
p-value: <0.00195% CI: [-63.718, -33.108]ANCOVA
p-value: <0.00195% CI: [-69.061, -23.468]ANCOVA
Secondary

Summary of All Deaths

All deaths, regardless of possible relatedness, with the exception of 1 event, were adjudicated by the Clinical Endpoint Committee (CEC) and are reported in this table. The 1 event which was not adjudicated was a result of the revocation of consent by the participant prior to their death. Deaths possibly related to study drug in the opinion of the investigator are also contained in the Serious Adverse Event (SAE) module.

Time frame: Randomization through end of study (30-month visit)

Population: All randomized participants

ArmMeasureGroupValue (NUMBER)
Prasugrel: <75 Years of AgeSummary of All DeathsCongestive Heart Failure10 participants
Prasugrel: <75 Years of AgeSummary of All DeathsSudden death due to cardiovascular event75 participants
Prasugrel: <75 Years of AgeSummary of All DeathsNon-Hemorrhagic Stroke4 participants
Prasugrel: <75 Years of AgeSummary of All DeathsStent Thrombosis0 participants
Prasugrel: <75 Years of AgeSummary of All DeathsCause unknown (nonadjudicated event)0 participants
Prasugrel: <75 Years of AgeSummary of All DeathsIntracranial Hemorrhage2 participants
Prasugrel: <75 Years of AgeSummary of All DeathsDirectly Related to Revascularization-CABG or PCI1 participants
Prasugrel: <75 Years of AgeSummary of All DeathsMalignancy14 participants
Prasugrel: <75 Years of AgeSummary of All DeathsInfection14 participants
Prasugrel: <75 Years of AgeSummary of All DeathsCardiogenic Shock8 participants
Prasugrel: <75 Years of AgeSummary of All DeathsAccidental1 participants
Prasugrel: <75 Years of AgeSummary of All DeathsHemorrhage, not intracranial1 participants
Prasugrel: <75 Years of AgeSummary of All DeathsTrauma2 participants
Prasugrel: <75 Years of AgeSummary of All DeathsCardiac Rupture0 participants
Prasugrel: <75 Years of AgeSummary of All DeathsOther Non-Cardiovascular event8 participants
Prasugrel: <75 Years of AgeSummary of All DeathsCardiovascular event, unknown type40 participants
Prasugrel: <75 Years of AgeSummary of All DeathsOther Cardiovascular Event6 participants
Prasugrel: <75 Years of AgeSummary of All DeathsMyocardial Infarction16 participants
Prasugrel: <75 Years of AgeSummary of All DeathsSuicide1 participants
Prasugrel: <75 Years of AgeSummary of All DeathsStroke, unknown type0 participants
Prasugrel: <75 Years of AgeSummary of All DeathsPulmonary Embolism0 participants
Prasugrel: <75 Years of AgeSummary of All DeathsDysrhythmia5 participants
Prasugrel: 75 Years of Age or OlderSummary of All DeathsHemorrhage, not intracranial1 participants
Prasugrel: 75 Years of Age or OlderSummary of All DeathsCongestive Heart Failure21 participants
Prasugrel: 75 Years of Age or OlderSummary of All DeathsCardiogenic Shock4 participants
Prasugrel: 75 Years of Age or OlderSummary of All DeathsCardiac Rupture1 participants
Prasugrel: 75 Years of Age or OlderSummary of All DeathsMyocardial Infarction24 participants
Prasugrel: 75 Years of Age or OlderSummary of All DeathsDysrhythmia2 participants
Prasugrel: 75 Years of Age or OlderSummary of All DeathsStent Thrombosis0 participants
Prasugrel: 75 Years of Age or OlderSummary of All DeathsDirectly Related to Revascularization-CABG or PCI1 participants
Prasugrel: 75 Years of Age or OlderSummary of All DeathsIntracranial Hemorrhage1 participants
Prasugrel: 75 Years of Age or OlderSummary of All DeathsNon-Hemorrhagic Stroke4 participants
Prasugrel: 75 Years of Age or OlderSummary of All DeathsSudden death due to cardiovascular event39 participants
Prasugrel: 75 Years of Age or OlderSummary of All DeathsPulmonary Embolism1 participants
Prasugrel: 75 Years of Age or OlderSummary of All DeathsStroke, unknown type1 participants
Prasugrel: 75 Years of Age or OlderSummary of All DeathsOther Cardiovascular Event1 participants
Prasugrel: 75 Years of Age or OlderSummary of All DeathsCardiovascular event, unknown type41 participants
Prasugrel: 75 Years of Age or OlderSummary of All DeathsTrauma3 participants
Prasugrel: 75 Years of Age or OlderSummary of All DeathsAccidental0 participants
Prasugrel: 75 Years of Age or OlderSummary of All DeathsInfection21 participants
Prasugrel: 75 Years of Age or OlderSummary of All DeathsMalignancy7 participants
Prasugrel: 75 Years of Age or OlderSummary of All DeathsSuicide0 participants
Prasugrel: 75 Years of Age or OlderSummary of All DeathsOther Non-Cardiovascular event4 participants
Prasugrel: 75 Years of Age or OlderSummary of All DeathsCause unknown (nonadjudicated event)1 participants
Clopidogrel: <75 Years of AgeSummary of All DeathsMalignancy14 participants
Clopidogrel: <75 Years of AgeSummary of All DeathsPulmonary Embolism2 participants
Clopidogrel: <75 Years of AgeSummary of All DeathsMyocardial Infarction24 participants
Clopidogrel: <75 Years of AgeSummary of All DeathsSuicide0 participants
Clopidogrel: <75 Years of AgeSummary of All DeathsStroke, unknown type0 participants
Clopidogrel: <75 Years of AgeSummary of All DeathsOther Cardiovascular Event0 participants
Clopidogrel: <75 Years of AgeSummary of All DeathsCardiac Rupture0 participants
Clopidogrel: <75 Years of AgeSummary of All DeathsCardiovascular event, unknown type45 participants
Clopidogrel: <75 Years of AgeSummary of All DeathsCause unknown (nonadjudicated event)0 participants
Clopidogrel: <75 Years of AgeSummary of All DeathsTrauma0 participants
Clopidogrel: <75 Years of AgeSummary of All DeathsCardiogenic Shock10 participants
Clopidogrel: <75 Years of AgeSummary of All DeathsOther Non-Cardiovascular event8 participants
Clopidogrel: <75 Years of AgeSummary of All DeathsHemorrhage, not intracranial0 participants
Clopidogrel: <75 Years of AgeSummary of All DeathsInfection16 participants
Clopidogrel: <75 Years of AgeSummary of All DeathsCongestive Heart Failure13 participants
Clopidogrel: <75 Years of AgeSummary of All DeathsAccidental1 participants
Clopidogrel: <75 Years of AgeSummary of All DeathsStent Thrombosis0 participants
Clopidogrel: <75 Years of AgeSummary of All DeathsIntracranial Hemorrhage4 participants
Clopidogrel: <75 Years of AgeSummary of All DeathsNon-Hemorrhagic Stroke4 participants
Clopidogrel: <75 Years of AgeSummary of All DeathsDysrhythmia6 participants
Clopidogrel: <75 Years of AgeSummary of All DeathsDirectly Related to Revascularization-CABG or PCI1 participants
Clopidogrel: <75 Years of AgeSummary of All DeathsSudden death due to cardiovascular event70 participants
Clopidogrel: 75 Years of Age or OlderSummary of All DeathsNon-Hemorrhagic Stroke3 participants
Clopidogrel: 75 Years of Age or OlderSummary of All DeathsCause unknown (nonadjudicated event)0 participants
Clopidogrel: 75 Years of Age or OlderSummary of All DeathsHemorrhage, not intracranial4 participants
Clopidogrel: 75 Years of Age or OlderSummary of All DeathsPulmonary Embolism1 participants
Clopidogrel: 75 Years of Age or OlderSummary of All DeathsCongestive Heart Failure23 participants
Clopidogrel: 75 Years of Age or OlderSummary of All DeathsOther Non-Cardiovascular event6 participants
Clopidogrel: 75 Years of Age or OlderSummary of All DeathsIntracranial Hemorrhage1 participants
Clopidogrel: 75 Years of Age or OlderSummary of All DeathsStroke, unknown type0 participants
Clopidogrel: 75 Years of Age or OlderSummary of All DeathsCardiac Rupture0 participants
Clopidogrel: 75 Years of Age or OlderSummary of All DeathsSuicide0 participants
Clopidogrel: 75 Years of Age or OlderSummary of All DeathsInfection17 participants
Clopidogrel: 75 Years of Age or OlderSummary of All DeathsOther Cardiovascular Event1 participants
Clopidogrel: 75 Years of Age or OlderSummary of All DeathsDysrhythmia3 participants
Clopidogrel: 75 Years of Age or OlderSummary of All DeathsAccidental1 participants
Clopidogrel: 75 Years of Age or OlderSummary of All DeathsStent Thrombosis0 participants
Clopidogrel: 75 Years of Age or OlderSummary of All DeathsCardiovascular event, unknown type45 participants
Clopidogrel: 75 Years of Age or OlderSummary of All DeathsCardiogenic Shock9 participants
Clopidogrel: 75 Years of Age or OlderSummary of All DeathsMalignancy11 participants
Clopidogrel: 75 Years of Age or OlderSummary of All DeathsDirectly Related to Revascularization-CABG or PCI1 participants
Clopidogrel: 75 Years of Age or OlderSummary of All DeathsTrauma1 participants
Clopidogrel: 75 Years of Age or OlderSummary of All DeathsSudden death due to cardiovascular event43 participants
Clopidogrel: 75 Years of Age or OlderSummary of All DeathsMyocardial Infarction21 participants

Source: ClinicalTrials.gov · Data processed: Mar 28, 2026