A Pharmacodynamic Study With Ticagrelor in African American Patients

This study has been completed.
Information provided by (Responsible Party):
ClinicalTrials.gov Identifier:
First received: January 30, 2012
Last updated: August 26, 2014
Last verified: August 2014

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

Condition Intervention Phase
Stable Coronary Artery Disease
Drug: Ticagrelor
Drug: Clopidogrel
Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Pharmacodynamics Study
Intervention Model: Crossover Assignment
Masking: Open Label
Primary Purpose: Treatment
Official 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

Resource links provided by NLM:

Further study details as provided by AstraZeneca:

Primary Outcome Measures:
  • Inhibition of the P2Y12 receptor measured by Platelet Reactivity Unit [ Time Frame: At 2 hours after the loading dose ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Inhibition of the P2Y12 receptor measured by Platelet Reactivity Unit [ Time Frame: At 0.5 and 8 hours after the loading dose ] [ Designated as safety issue: No ]
  • Inhibition of the P2Y12 receptor measured by Platelet Reactivity Unit [ Time Frame: At 2, 8 and 24 hours from last dose ] [ Designated as safety issue: No ]
  • Area under the plasma concentration versus time curve (AUC) of ticagrelor [ Time Frame: Predose, 0.5, 2, 8 from loading dose; 0, 2, 8 and 24 from last dose ] [ Designated as safety issue: No ]

Enrollment: 50
Study Start Date: March 2012
Study Completion Date: September 2013
Primary Completion Date: September 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Ticagrelor Drug: Ticagrelor
Min - 90mg/Max - 180mg tablets (loading dose)
Active Comparator: Clopidogrel Drug: Clopidogrel
75mg (once daily)/Max - 600mg tablets (loading dose)

Detailed Description:

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


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

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
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01523392

United States, Delaware
Research Site
Newark, Delaware, United States
Research Site
Wilmington, Delaware, United States
United States, District of Columbia
Research Site
Washington, District of Columbia, United States
United States, Florida
Research Site
Hollywood, Florida, United States
Research Site
Jacksonville, Florida, United States
United States, Georgia
Research Site
Atlanta, Georgia, United States
United States, Maryland
Research Site
Towson, Maryland, United States
United States, Texas
Research Site
Beaumont, Texas, United States
Sponsors and Collaborators
Study Director: Glenn Carlson, MD AstraZeneca Pharmaceuticals Room C3B-718PO Box 15437 Wilmington, DE 19850-5437 USA
  More Information

Additional Information:
No publications provided

Responsible Party: AstraZeneca
ClinicalTrials.gov Identifier: NCT01523392     History of Changes
Other Study ID Numbers: D5130L00013
Study First Received: January 30, 2012
Last Updated: August 26, 2014
Health Authority: United States: Food and Drug Administration

Keywords provided by AstraZeneca:
Stable Coronary Artery Disease, CAD

Additional relevant MeSH terms:
Coronary Artery Disease
Myocardial Ischemia
Coronary Disease
Heart Diseases
Cardiovascular Diseases
Arterial Occlusive Diseases
Vascular Diseases
Platelet Aggregation Inhibitors
Hematologic Agents
Therapeutic Uses
Pharmacologic Actions
Purinergic P2Y Receptor Antagonists
Purinergic P2 Receptor Antagonists
Purinergic Antagonists
Purinergic Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Physiological Effects of Drugs

ClinicalTrials.gov processed this record on September 16, 2014