Effect of Prasugrel on Platelets After One Week in Patients Already Taking Clopidogrel After a Cardiac Event

NCT ID: NCT00356135

Last Updated: 2010-11-03

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

View full results

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

139 participants

Study Classification

INTERVENTIONAL

Study Start Date

2006-07-31

Study Completion Date

2008-12-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

This study will compare the effect of a prasugrel 10-mg maintenance dose with a clopidogrel 75-mg maintenance dose on platelet activity, approximately 1 week after the first dose of study drug, in subjects who have been taking clopidogrel 75 mg daily following a percutaneous coronary intervention (PCI) with placement of a stent, performed to treat acute coronary syndrome (ACS).

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Coronary Arteriosclerosis Acute Coronary Syndrome

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Prasugrel 10/10 mg

Open label (lead-in) dose of clopidogrel 75 milligram (mg) for 10 to 14 days. Upon completion, assignment to a single loading dose of prasugrel 10 mg and placebo, followed by maintenance dose of prasugrel 10 mg taken for 13 to 15 days.

Group Type EXPERIMENTAL

prasugrel 10 mg

Intervention Type DRUG

10 mg tablet taken orally

clopidogrel

Intervention Type DRUG

75 mg tablet taken orally

prasugrel placebo

Intervention Type DRUG

oral, as blinding mechanism.

clopidogrel placebo

Intervention Type DRUG

oral, as blinding mechanism

Clopidogrel 75/75 mg

Open label (lead-in) dose of clopidogrel 75 mg for 10 to 14 days. Upon completion, assignment to a single loading dose of clopidogrel 75 mg and placebo, followed by maintenance dose of clopidogrel 75 mg taken for 13 to 15 days.

Group Type EXPERIMENTAL

clopidogrel

Intervention Type DRUG

75 mg tablet taken orally

prasugrel placebo

Intervention Type DRUG

oral, as blinding mechanism.

Prasugrel 60/10 mg

Open label (lead-in) dose of clopidogrel 75 mg for 10 to 14 days. Upon completion, assignment to a single loading dose of prasugrel 60 mg and placebo followed by maintenance dose of prasugrel 10 mg taken for 13 to 15 days.

Group Type EXPERIMENTAL

prasugrel 10 mg

Intervention Type DRUG

10 mg tablet taken orally

clopidogrel

Intervention Type DRUG

75 mg tablet taken orally

prasugrel 60 mg

Intervention Type DRUG

60 mg (six 10-mg tablets) taken orally

clopidogrel placebo

Intervention Type DRUG

oral, as blinding mechanism

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

prasugrel 10 mg

10 mg tablet taken orally

Intervention Type DRUG

clopidogrel

75 mg tablet taken orally

Intervention Type DRUG

prasugrel placebo

oral, as blinding mechanism.

Intervention Type DRUG

prasugrel 60 mg

60 mg (six 10-mg tablets) taken orally

Intervention Type DRUG

clopidogrel placebo

oral, as blinding mechanism

Intervention Type DRUG

Other Intervention Names

Discover alternative or legacy names that may be used to describe the listed interventions across different sources.

LY640315 Effient Efient Plavix Clopilet Clavix LY640315 Effient Efient

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Present with a recent history of an ACS event based on the disease diagnostic criteria between 30 and 330 days prior to enrollment, and who state that they are supposed to be taking daily aspirin and maintenance dose 75-mg clopidogrel.
* Are of a legal age (and at least 18 years of age but less than 75 years of age) and competent mental condition to provide written informed consent before entering the study.

Exclusion Criteria

* Left main coronary artery stent or left anterior descending (LAD) bifurcation stent.
* Have any form of coronary revascularization (percutaneous coronary intervention \[PCI\] or coronary artery bypass grafting \[CABG\]) planned to occur during the study (from signing consent through the final visit).
* Have undergone CABG or PCI within 30 days of entry into the study.
* Receiving or will receive oral anticoagulation or other antiplatelet therapy (other than aspirin and clopidogrel) that cannot be safely discontinued for the duration of the study.
* Receiving daily treatment with nonsteroidal anti-inflammatory drugs (NSAIDs) that cannot be discontinued or are anticipated to require daily treatment with NSAIDs during the study.
* Have any of the following: history of ischemic or hemorrhagic stroke intracranial neoplasm, arteriovenous malformation, or aneurysm history of transient ischemic attack (TIA), have a body weight less than 60 kilograms (kg).
Minimum Eligible Age

18 Years

Maximum Eligible Age

74 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Daiichi Sankyo

INDUSTRY

Sponsor Role collaborator

Eli Lilly and Company

INDUSTRY

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Eli Lilly

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Call 1-877-CTLILLY (1-877-285-4559) or 317-615-4559 Mon - Fri 9 am - 5 pm Eastern time (UTC/GMT - 5 hours, EST)

Role: STUDY_DIRECTOR

Eli Lilly and Company

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Monday-Friday from 9:00 AM to 5:00 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician

Jacksonville, Florida, United States

Site Status

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Monday-Friday from 9:00 AM to 5:00 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician

Baltimore, Maryland, United States

Site Status

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Monday-Friday from 9:00 AM to 5:00 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician

Worcester, Massachusetts, United States

Site Status

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Monday-Friday from 9:00 AM to 5:00 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician

Ann Arbor, Michigan, United States

Site Status

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Monday-Friday from 9:00 AM to 5:00 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician

Cincinnati, Ohio, United States

Site Status

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Monday-Friday from 9:00 AM to 5:00 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician

Columbus, Ohio, United States

Site Status

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Monday-Friday from 9:00 AM to 5:00 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician

Oklahoma City, Oklahoma, United States

Site Status

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Monday-Friday from 9:00 AM to 5:00 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician

Rapid City, South Dakota, United States

Site Status

For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Monday-Friday from 9:00 AM to 5:00 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician

Houston, Texas, United States

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United States

References

Explore related publications, articles, or registry entries linked to this study.

Angiolillo DJ, Saucedo JF, Deraad R, Frelinger AL, Gurbel PA, Costigan TM, Jakubowski JA, Ojeh CK, Effron MB; SWAP Investigators. Increased platelet inhibition after switching from maintenance clopidogrel to prasugrel in patients with acute coronary syndromes: results of the SWAP (SWitching Anti Platelet) study. J Am Coll Cardiol. 2010 Sep 21;56(13):1017-23. doi: 10.1016/j.jacc.2010.02.072.

Reference Type RESULT
PMID: 20846599 (View on PubMed)

Saucedo JF, Angiolillo DJ, DeRaad R, Frelinger AL 3rd, Gurbel PA, Costigan TM, Jakubowski JA, Ojeh CK, Duvvuru S, Effron MB; SWAP Investigators. Decrease in high on-treatment platelet reactivity (HPR) prevalence on switching from clopidogrel to prasugrel: insights from the switching anti-platelet (SWAP) study. Thromb Haemost. 2013 Feb;109(2):347-55. doi: 10.1160/TH12-06-0378. Epub 2012 Dec 6.

Reference Type DERIVED
PMID: 23223867 (View on PubMed)

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

H7T-MC-TABM

Identifier Type: OTHER

Identifier Source: secondary_id

10631

Identifier Type: -

Identifier Source: org_study_id