NCT00526474

Brief Summary

The study is designed to determine whether vorapaxar, when added to the existing standard of care (SOC) for preventing heart attack and stroke (eg, aspirin, clopidogrel) in participants with a known history of atherosclerosis, will yield additional benefit over the existing standard of care without vorapaxar in preventing heart attack and stroke. The study is also designed to assess risk of bleeding with vorapaxar added to the standard of care versus the standard of care alone.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
26,449

participants targeted

Target at P75+ for phase_3

Timeline
Completed

Started Sep 2007

Typical duration for phase_3

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 2007

Completed
5 days until next milestone

First Submitted

Initial submission to the registry

September 6, 2007

Completed
4 days until next milestone

First Posted

Study publicly available on registry

September 10, 2007

Completed
4.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2011

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2011

Completed
2.5 years until next milestone

Results Posted

Study results publicly available

June 18, 2014

Completed
Last Updated

September 21, 2018

Status Verified

August 1, 2018

Enrollment Period

4.3 years

First QC Date

September 6, 2007

Results QC Date

May 16, 2014

Last Update Submit

August 22, 2018

Conditions

Outcome Measures

Primary Outcomes (1)

  • Kaplan-Meier Estimate of the Percentage of Participants Who Experienced Cardiovascular (CV) Death, Myocardial Infarction (MI), Stroke, or Urgent Coronary Revascularization (UCR) Within 3 Years From Randomization

    The time (in days) from study start to the first occurrence of any of the following clinical outcomes was recorded: CV death, MI, stroke, or UCR. 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 participants who were lost to follow-up and had no event were censored at the time of last available information (last study visit). If a participant had a fatal event that was not part of a specific endpoint for analysis, they were censored at the time of death. The Kaplan-Meier estimate reports the percentage of participants who experienced CV death, MI, stroke, or UCR within 3 years from randomization.

    up to 3 years

Secondary Outcomes (15)

  • Kaplan-Meier Estimate of the Percentage of Participants Who Experienced CV Death, MI, or Stroke Within 3 Years From Randomization

    up to 3 years

  • Kaplan-Meier Estimate of the Percentage of Participants Who Met Global Utilization of Streptokinase and Tissue Plasminogen Activator for Occluded Arteries (GUSTO) Moderate or Severe Bleeding Criteria Within 3 Years From Randomization

    up to 3 years

  • Kaplan-Meier Estimate of the Percentage of Participants Who Experienced Clinically Significant Bleeding Within 3 Years From Randomization

    up to 3 years

  • Kaplan-Meier Estimate of the Percentage of Participants Who Experienced Death From Any Cause, MI, Stroke, or UCR Within 3 Years From Randomization

    up to 3 years

  • Kaplan-Meier Estimate of the Percentage of Participants Who Experienced CV Death or an MI Within 3 Years From Randomization

    up to 3 years

  • +10 more secondary outcomes

Study Arms (2)

Placebo

PLACEBO COMPARATOR

1 placebo tablet, orally, daily for at least 1 year in addition to current treatment of atherosclerotic disease, which will be continued to be administered as per current standard of care.

Drug: Placebo

Vorapaxar

EXPERIMENTAL

one 2.5 mg tablet daily, orally, for at least 1 year in addition to current treatment of atherosclerotic disease, which will be continued to be administered as per current standard of care.

Drug: Vorapaxar

Interventions

2.5-mg tablet daily for at least 1 year

Vorapaxar

matching tablet daily for at least 1 year

Placebo

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Men and women at least 18 years old with evidence or a history of atherosclerosis involving the coronary, cerebral, or peripheral vascular systems by one or more of the following:
  • history of myocardial infarction (heart attack)
  • history of ischemic stroke (stroke due to a blocked artery)
  • history of peripheral arterial disease

You may not qualify if:

  • history of intracranial hemorrhage or of central nervous system (CNS) surgery, tumor, or aneurysm
  • any bleeding disorder or abnormality
  • sustained severe hypertension or valvular heart disease
  • current or recent platelet count \<100,000 mm\^3
  • planned or ongoing treatment with a blood thinning medication
  • pregnancy
  • any significant medical or physiological condition or abnormality that could put the subject at increased risk or limit the subject's ability to participate for the duration of the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (19)

  • Natale P, Palmer SC, Saglimbene VM, Ruospo M, Razavian M, Craig JC, Jardine MJ, Webster AC, Strippoli GF. Antiplatelet agents for chronic kidney disease. Cochrane Database Syst Rev. 2022 Feb 28;2(2):CD008834. doi: 10.1002/14651858.CD008834.pub4.

  • Berg DD, Freedman BL, Bonaca MP, Jarolim P, Scirica BM, Goodrich EL, Sabatine MS, Morrow DA. Cardiovascular Biomarkers and Heart Failure Risk in Stable Patients With Atherothrombotic Disease: A Nested Biomarker Study From TRA 2 degrees P-TIMI 50. J Am Heart Assoc. 2021 May 4;10(9):e018673. doi: 10.1161/JAHA.120.018673. Epub 2021 Apr 22.

  • Qamar A, Morrow DA, Creager MA, Scirica BM, Olin JW, Beckman JA, Murphy SA, Bonaca MP. Effect of vorapaxar on cardiovascular and limb outcomes in patients with peripheral artery disease with and without coronary artery disease: Analysis from the TRA 2 degrees P-TIMI 50 trial. Vasc Med. 2020 Apr;25(2):124-132. doi: 10.1177/1358863X19892690. Epub 2020 Jan 30.

  • Xu H, Bonaca MP, Goodrich E, Scirica BM, Morrow DA. Efficacy and safety of vorapaxar for secondary prevention in low body weight in patients with atherosclerosis: analyses from the TRA 2 degrees P-TIMI 50 Trial. Eur Heart J Acute Cardiovasc Care. 2021 Apr 8;10(2):190-199. doi: 10.1177/2048872619883354. Epub 2019 Oct 23.

  • Bonaca MP, Creager MA, Olin J, Scirica BM, Gilchrist IC Jr, Murphy SA, Goodrich EL, Braunwald E, Morrow DA. Peripheral Revascularization in Patients With Peripheral Artery Disease With Vorapaxar: Insights From the TRA 2 degrees P-TIMI 50 Trial. JACC Cardiovasc Interv. 2016 Oct 24;9(20):2157-2164. doi: 10.1016/j.jcin.2016.07.034.

  • Bohula EA, Bonaca MP, Braunwald E, Aylward PE, Corbalan R, De Ferrari GM, He P, Lewis BS, Merlini PA, Murphy SA, Sabatine MS, Scirica BM, Morrow DA. Atherothrombotic Risk Stratification and the Efficacy and Safety of Vorapaxar in Patients With Stable Ischemic Heart Disease and Previous Myocardial Infarction. Circulation. 2016 Jul 26;134(4):304-13. doi: 10.1161/CIRCULATIONAHA.115.019861.

  • Kidd SK, Bonaca MP, Braunwald E, De Ferrari GM, Lewis BS, Merlini PA, Murphy SA, Scirica BM, White HD, Morrow DA. Universal Classification System Type of Incident Myocardial Infarction in Patients With Stable Atherosclerosis: Observations From Thrombin Receptor Antagonist in Secondary Prevention of Atherothrombotic Ischemic Events (TRA 2 degrees P)-TIMI 50. J Am Heart Assoc. 2016 Jul 18;5(7):e003237. doi: 10.1161/JAHA.116.003237.

  • Berg DD, Bonaca MP, Braunwald E, Corbalan R, Goto S, Kiss RG, Murphy SA, Scirica BM, Spinar J, Morrow DA. Outcomes in Stable Patients With Previous Atherothrombotic Events Receiving Vorapaxar Who Experience a New Acute Coronary Event (from TRA2 degrees P-TIMI 50). Am J Cardiol. 2016 Apr 1;117(7):1055-8. doi: 10.1016/j.amjcard.2015.12.052. Epub 2016 Jan 14.

  • Bonaca MP, Gutierrez JA, Creager MA, Scirica BM, Olin J, Murphy SA, Braunwald E, Morrow DA. Acute Limb Ischemia and Outcomes With Vorapaxar in Patients With Peripheral Artery Disease: Results From the Trial to Assess the Effects of Vorapaxar in Preventing Heart Attack and Stroke in Patients With Atherosclerosis-Thrombolysis in Myocardial Infarction 50 (TRA2 degrees P-TIMI 50). Circulation. 2016 Mar 8;133(10):997-1005. doi: 10.1161/CIRCULATIONAHA.115.019355. Epub 2016 Jan 29.

  • Bohula EA, Aylward PE, Bonaca MP, Corbalan RL, Kiss RG, Murphy SA, Scirica BM, White H, Braunwald E, Morrow DA. Efficacy and Safety of Vorapaxar With and Without a Thienopyridine for Secondary Prevention in Patients With Previous Myocardial Infarction and No History of Stroke or Transient Ischemic Attack: Results from TRA 2 degrees P-TIMI 50. Circulation. 2015 Nov 17;132(20):1871-9. doi: 10.1161/CIRCULATIONAHA.114.015042. Epub 2015 Sep 3.

  • Magnani G, Bonaca MP, Braunwald E, Dalby AJ, Fox KA, Murphy SA, Nicolau JC, Oude Ophuis T, Scirica BM, Spinar J, Theroux P, Morrow DA. Efficacy and safety of vorapaxar as approved for clinical use in the United States. J Am Heart Assoc. 2015 Mar 19;4(3):e001505. doi: 10.1161/JAHA.114.001505.

  • Cavender MA, Scirica BM, Bonaca MP, Angiolillo DJ, Dalby AJ, Dellborg M, Morais J, Murphy SA, Ophuis TO, Tendera M, Braunwald E, Morrow DA. Vorapaxar in patients with diabetes mellitus and previous myocardial infarction: findings from the thrombin receptor antagonist in secondary prevention of atherothrombotic ischemic events-TIMI 50 trial. Circulation. 2015 Mar 24;131(12):1047-53. doi: 10.1161/CIRCULATIONAHA.114.013774. Epub 2015 Feb 13.

  • Bonaca MP, Scirica BM, Braunwald E, Wiviott SD, Goto S, Nilsen DW, Bonarjee V, Murphy SA, Morrow DA. New ischemic stroke and outcomes with vorapaxar versus placebo: results from the TRA 2 degrees P-TIMI 50 trial. J Am Coll Cardiol. 2014 Dec 9;64(22):2318-26. doi: 10.1016/j.jacc.2014.07.997. Epub 2014 Dec 1.

  • Bonaca MP, Scirica BM, Braunwald E, Wiviott SD, O'Donoghue ML, Murphy SA, Morrow DA. Coronary stent thrombosis with vorapaxar versus placebo: results from the TRA 2 degrees P-TIMI 50 trial. J Am Coll Cardiol. 2014 Dec 9;64(22):2309-17. doi: 10.1016/j.jacc.2014.09.037. Epub 2014 Dec 1.

  • Bonaca MP, Scirica BM, Creager MA, Olin J, Bounameaux H, Dellborg M, Lamp JM, Murphy SA, Braunwald E, Morrow DA. Vorapaxar in patients with peripheral artery disease: results from TRA2degreesP-TIMI 50. Circulation. 2013 Apr 9;127(14):1522-9, 1529e1-6. doi: 10.1161/CIRCULATIONAHA.112.000679. Epub 2013 Mar 15.

  • Morrow DA, Alberts MJ, Mohr JP, Ameriso SF, Bonaca MP, Goto S, Hankey GJ, Murphy SA, Scirica BM, Braunwald E; Thrombin Receptor Antagonist in Secondary Prevention of Atherothrombotic Ischemic Events-TIMI 50 Steering Committee and Investigators. Efficacy and safety of vorapaxar in patients with prior ischemic stroke. Stroke. 2013 Mar;44(3):691-8. doi: 10.1161/STROKEAHA.111.000433. Epub 2013 Feb 8.

  • Scirica BM, Bonaca MP, Braunwald E, De Ferrari GM, Isaza D, Lewis BS, Mehrhof F, Merlini PA, Murphy SA, Sabatine MS, Tendera M, Van de Werf F, Wilcox R, Morrow DA; TRA 2 degrees P-TIMI 50 Steering Committee Investigators. Vorapaxar for secondary prevention of thrombotic events for patients with previous myocardial infarction: a prespecified subgroup analysis of the TRA 2 degrees P-TIMI 50 trial. Lancet. 2012 Oct 13;380(9850):1317-24. doi: 10.1016/S0140-6736(12)61269-0. Epub 2012 Aug 26.

  • Morrow DA, Braunwald E, Bonaca MP, Ameriso SF, Dalby AJ, Fish MP, Fox KA, Lipka LJ, Liu X, Nicolau JC, Ophuis AJ, Paolasso E, Scirica BM, Spinar J, Theroux P, Wiviott SD, Strony J, Murphy SA; TRA 2P-TIMI 50 Steering Committee and Investigators. Vorapaxar in the secondary prevention of atherothrombotic events. N Engl J Med. 2012 Apr 12;366(15):1404-13. doi: 10.1056/NEJMoa1200933. Epub 2012 Mar 24.

  • Morrow DA, Scirica BM, Fox KA, Berman G, Strony J, Veltri E, Bonaca MP, Fish P, McCabe CH, Braunwald E; TRA 2(o)P-TIMI 50 Investigators. Evaluation of a novel antiplatelet agent for secondary prevention in patients with a history of atherosclerotic disease: design and rationale for the Thrombin-Receptor Antagonist in Secondary Prevention of Atherothrombotic Ischemic Events (TRA 2 degrees P)-TIMI 50 trial. Am Heart J. 2009 Sep;158(3):335-341.e3. doi: 10.1016/j.ahj.2009.06.027.

MeSH Terms

Conditions

AtherosclerosisIschemiaMyocardial InfarctionStrokePeripheral Arterial Disease

Interventions

vorapaxar

Condition Hierarchy (Ancestors)

ArteriosclerosisArterial Occlusive DiseasesVascular DiseasesCardiovascular DiseasesPathologic ProcessesPathological Conditions, Signs and SymptomsMyocardial IschemiaHeart DiseasesInfarctionNecrosisCerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesPeripheral Vascular Diseases

Limitations and Caveats

Prior to the completion of the study, based on a communication from the Data and Safety Monitoring Board, all participants who had experienced a stroke either before or during the study had study drug discontinued.

Results Point of Contact

Title
Senior Vice President, Global Clinical Development
Organization
Merck Sharp & Dohme Corp.

Study Officials

  • Medical Director

    Merck Sharp & Dohme LLC

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 6, 2007

First Posted

September 10, 2007

Study Start

September 1, 2007

Primary Completion

December 1, 2011

Study Completion

December 1, 2011

Last Updated

September 21, 2018

Results First Posted

June 18, 2014

Record last verified: 2018-08

Data Sharing

IPD Sharing
Will share

https://www.merck.com/clinical-trials/pdf/ProcedureAccessClinicalTrialData.pdf

More information

Available IPD Datasets

CSR Synopsis Access