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A Randomized, Double-Blind, Cross-Over Study Comparing the Pharmacodynamic Response in Subjects with Acute Coronary Syndrome Receiving 14 Days 10-mg Maintenance Dose Prasugrel (LY640315) versus 14 Days 150-mg Maintenance Dose Clopidogrel After Using a 900-mg Loading Dose of Clopidogrel to Reduce Ongoing Platelet Activation – The ACAPULCO Study - ACAPULCO Study

A Randomized, Double-Blind, Cross-Over Study Comparing the Pharmacodynamic Response in Subjects with Acute Coronary Syndrome Receiving 14 Days 10-mg Maintenance Dose Prasugrel (LY640315) versus 14 Days 150-mg Maintenance Dose Clopidogrel After Using a 900-mg Loading Dose of Clopidogrel to Reduce Ongoing Platelet Activation – The ACAPULCO Study - ACAPULCO Study

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2006-002618-37-FR
Enrollment
70
Registered
2006-07-31
Start date
2006-12-28
Completion date
Unknown
Last updated
2022-04-04

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

Conditions

subjects with acute coronary syndrome MedDRA version: 8.1 Level: LLT Classification code 10051592 Term: Acute coronary syndrome

Interventions

Sponsors

Eli Lilly and Company
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: [1] Present with acute coronary syndrome (ACS) based on the disease diagnostic criteria and have planned treatment, as part of standard of care, with a one-time 900-mg loading dose of commercially available clopidogrel. [2] Are of a legal age (and at least 18 years of age to less than 85 years of age) and competent mental condition to provide written informed consent before entering the study. Informed consent must be signed by the study participant or authorized representative, according to local rules and regulations. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: Cardiovascular Exclusion Criteria [4] Have overt ST-segment elevation myocardial infarction (STEMI). [5] Have cardiogenic shock (systolic blood pressure 1.5. [15] Have a platelet count of <100,000/mm3. [16] Have anemia (hemoglobin [Hgb] <10 gm/dL). Prior/Concomitant Therapy Exclusion Criteria [17] Have received any GPIIb/IIIa inhibitors less than 30 days prior to study entry or anytime during the study. [18] Are receiving or will receive oral anticoagulation or other antiplatelet therapy (other than aspirin, low molecular weight heparin, or hirudin) that cannot be safely discontinued for the duration of the study. [19] Are currently receiving chemotherapy or radiation therapy. General Exclusion Criteria [20] Are investigator site personnel directly affiliated with the study or are immediate family of investigator site personnel directly affiliated with the study. Immediate family is defined as a spouse, parent, child, or sibling, whether biological or legally adopted. [21] Are employed by Eli Lilly & Company, Daiichi Sankyo, Inc., or the contract research organization (CRO) (that is, employees, temporary contract workers, or designees responsible for the conduct of the study). Immediate family of Lilly employees may participate in Lilly-sponsored clinical studies but are not permitted to participate at a Lilly facility. Immediate family is defined as a spouse, parent, child, or sibling, whether biological or legally adopted. [22] Have received treatment within the last 30 days with a drug that has not received regulatory approval for any indication at the time of study entry, or are presently enrolled in another drug or device study. [23] Have previously completed or withdrawn from this study or any other study investigating prasugrel. [24] Are women who are known to be pregnant, who have given birth within the past 90 days, who are breastfeeding, or of child-bearing potential who test negative for pregnancy at Visit 1 , but refuse to use a reliable method of birth control (that is barrier, hormonal, or abstinence) during the study. [25] Have a concomitant medical illness (for example, terminal malignancy) that in the opinion of the investigator is associated with reduced survival over the next 15 months. [26] Have any other condition, chronic illness, or medication that, in the opinion of the investigator, would preclude participation in the

Design outcomes

Primary

MeasureTime frame
Main Objective: to establish superiority of a prasugrel 10-mg daily maintenance dose compared with a clopidogrel 150-mg daily maintenance dose;Secondary Objective: *To assess and compare a prasugrel 10-mg daily maintenance dose(MD) with a clopidogrel 150-mg daily MD as assessed by: - mean MPA to 5 µM ADP at the end of two 14-day treatment periods in subjects with ACS - mean IPA to 5 and 20 µM ADP at the end of two 14-day treatment periods in subjects with ACS *To compare the pharmacodynamic effect, as assessed by the phosphorylation status of VASP expressed as the mean [PRI] *To assess and compare the levels of ADP-induced P2Y12 reaction units *To assess and compare the levels of ADP-induced MPA *To compare a prasugrel 10-mg daily MD with a clopidogrel 150-mg daily MD *To estimate the effect on platelet aggregation of changing from a clopidogrel 900-mg loading dose to the initial MD *To explore the safety and tolerability of the daily MD of prasugrel versus clopidogrel *To explore the safety of prasugrel MD initiated after a clopidogrel 900-mg loading dose ;Primary end point(s): platelet aggregation response to adenosine diphosphate (ADP)

Countries

France

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026