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Completed

NCT Number: NCT01523392

A Pharmacodynamic Study With Ticagrelor in African American Patients

The purpose of this study is to assess the pharmacodynamic effect of ticagrelor in African American patients with stable coronary artery disease.

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Key information

Conditions

Stable Coronary Artery Disease

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Primary location

Research Site, Newark, Delaware, United States

Loading trial locations.

About this study

A Randomized, Open-Label, Multiple Dose, Crossover, Multiple Center Study of the Antiplatelet Effects of Ticagrelor versus Clopidogrel in African American Patients with Stable Coronary Artery Disease

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Provision of signed and dated informed consent before initiation of any study-related procedures
  • Male or female patients aged 18 years or older
  • Documented stable CAD fulfilling and taking 75-100mg ASA daily treatment
  • Females must be post menopausal or surgically sterile Self-identified as African American

Exclusion criteria

  • Any indication for oral anticoagulant (e.g., atrial fibrillation, mitral stenosis or prosthetic heart valve) or dual antiplatelet treatment (e.g., clopidogrel, prasugrel, ASA dose other than 75 to 100 mg daily) during study period
  • Patients who had ACS or stent placed within 12 months of screening Patients with a history of moderate or severe hepatic impairment
  • Current smokers, including the use of tobacco containing products in the past 1 month of randomization Patients required dialysis

Treatment and study plan

Ticagrelor

Drug

Min - 90mg/Max - 180mg tablets (loading dose)

clopidogrel

Drug

75mg (once daily)/Max - 600mg tablets (loading dose)

Primary outcomes

  1. Inhibition of the P2Y12 Receptor as Measured by Platelet Reaction Unit (PRU) From VerifyNow™ (a Platelet Function Test Developed by Accumetrics) at 2 Hours After Loading Dose

    Time frame: At 2 hours after the loading dose

Secondary outcomes

  1. Inhibition of the P2Y12 Receptor as Measured by PRU From VerifyNow™ at 0.5 Hour and 8 Hours After Loading Dose

    Time frame: At 0.5 hour and 8 hours after the loading dose

  2. Inhibition of the P2Y12 Receptor as Measured by PRU From VerifyNow™ at 2 Hours and 8 Hours on Day 7 After Multiple Doses and at End of Dosing Interval on Day 8

    Time frame: At 2 hours and 8 hours on Day 7 after multiple doses and at end of dosing interval on Day 8

  3. Ticagrelor Plasma Concentrations After the Loading and Maintenance Doses

    Time frame: Predose, 0.5 hour, 2 hours, 8 hours from loading dose; 0, 2 hours, 8 hours and 12 hours from last dose

    The standard deviation (SD) is the geometric SD

  4. AR-C124910XX (an Active Metabolite of Ticagrelor) Plasma Concentrations After the Loading and Maintenance Doses

    Time frame: Predose, 0.5 hour, 2 hours, 8 hours from loading dose and 0, 2 hours, 8 hours and 12 hours from last dose

    The standard deviation (SD) is the geometric SD

Sponsors and collaborators

Lead sponsor

AstraZeneca

Industry

Registry information

Official study title

A Randomized, Open-Label, Multiple Dose, Crossover, Multiple Center Study of the Antiplatelet Effects of Ticagrelor Versus Clopidogrel in African American Patients With Stable Coronary Artery Disease

Important dates

Study start
2012
Primary completion
2013
Study completion
2013
First posted
Feb 1, 2012
Registry last updated
Oct 8, 2014

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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