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Clopidogrel Response in Acute Ischemic Stroke. The Bochumer CRISP Study (Bo-CRISP)

This study has been completed.
ClinicalTrials.gov Identifier:
First Posted: April 30, 2013
Last Update Posted: April 30, 2013
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Saskia Meves, Ruhr University of Bochum
The aim of this study was to determine the prevalence rate and risk factors for chemical laboratory clopidogrel low-response (CLR) in the acute phase after an ischemic stroke.

Ischemic Stroke

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Prospective
Official Title: Prevalence of Low Response to Clopidogrel in Patients After Acute Ischemic Stroke.

Resource links provided by NLM:

Further study details as provided by Saskia Meves, Ruhr University of Bochum:

Primary Outcome Measures:
  • Result of platelet function test [ Time Frame: one day ]
    Aggregometry result of antiplatelet therapy

Enrollment: 159
Study Start Date: July 2010
Study Completion Date: December 2012
Primary Completion Date: December 2012 (Final data collection date for primary outcome measure)
acute ischemic stroke
Determing cardiovascular risk factors or medication on clopidogrel response rates after an acute ischemic stroke


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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Patients with an acute ischemic stroke admitted to our stroke unit and treated with clopidogrel

Inclusion Criteria:

  • acute ischemic stroke
  • admittance to stroke unit
  • clopidogrel medication

Exclusion Criteria:

  • no consent
  • prior bleeding disorders
  • severe liver disorders
  • current gastrointestinal disorders
  • congestive heart failure
  • life-threatening malignancies
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01843361

Department of Neurology, Ruhr University Bochum
Bochum, Germany, 44791
Sponsors and Collaborators
Ruhr University of Bochum
Principal Investigator: Saskia H Meves, MD Ruhr University Bochum, Department of Neurology
  More Information

Responsible Party: Saskia Meves, MD, Ruhr University of Bochum
ClinicalTrials.gov Identifier: NCT01843361     History of Changes
Other Study ID Numbers: Meves-clopi-01
First Submitted: April 26, 2013
First Posted: April 30, 2013
Last Update Posted: April 30, 2013
Last Verified: April 2013

Keywords provided by Saskia Meves, Ruhr University of Bochum:
Antiplatelet therapy
Platelet function tests

Additional relevant MeSH terms:
Cerebral Infarction
Cerebrovascular Disorders
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Vascular Diseases
Cardiovascular Diseases
Pathologic Processes
Brain Infarction
Brain Ischemia
Platelet Aggregation Inhibitors
Purinergic P2Y Receptor Antagonists
Purinergic P2 Receptor Antagonists
Purinergic Antagonists
Purinergic Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Physiological Effects of Drugs
Fibrinolytic Agents
Fibrin Modulating Agents
Cytochrome P-450 CYP2C19 Inhibitors
Cytochrome P-450 Enzyme Inhibitors
Enzyme Inhibitors