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Aspirin Resistance and Prognosis of Patients With Critical Limb Ischaemia (Aspirine)

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. Identifier: NCT01104441
Recruitment Status : Unknown
Verified April 2010 by University Hospital, Limoges.
Recruitment status was:  Recruiting
First Posted : April 15, 2010
Last Update Posted : December 5, 2012
Information provided by (Responsible Party):
University Hospital, Limoges

Brief Summary:

Acetylsalicylic acid (Aspirin, ASA) is the most widely prescribed drug used in primary and secondary prevention of cardiovascular disease. However, aspirin resistance has been described, mostly in cardiac patients and is an independent predictive factor for a poor survival. Two frequent conditions in patients with cardiovascular diseases, diabetes and hypercholesterolemia, are also considered as risk factors for aspirin resistance. Among patients with peripheral arterial disease, those with critical limb ischemia have the worst cardiovascular prognosis. At one year, 23% are dead, 25% have a major cardiovascular event and 25% have a major amputation (which can be combined). Aspirin resistance is poorly studied in these patients, and to our knowledge no study has been made to assess the prognosis value of aspirin resistance on cardiovascular outcomes in critical limb ischaemia patients.

Hospitalized critical limb ischaemia patients will be tested for aspirin resistance using the bed-side point of care VerifyNow®, and will be followed during one year, including death, fatal and non-fatal acute coronary syndromes, cardiac decompensation, stroke, and major amputation.

Condition or disease Phase
Aspirin Resistance Phase 4

Study Type : Observational
Estimated Enrollment : 153 participants
Observational Model: Case-Only
Time Perspective: Prospective
Official Title: Cardiovascular Events at One Year of Patients Hospitalized for Critical Limb Ischaemia and Aspirin Resistant Using the VerifyNow®. Aspirin Resistance and Prognosis of Patients With Critical Limb Ischaemia
Study Start Date : April 2010
Estimated Primary Completion Date : April 2013
Estimated Study Completion Date : April 2014

Resource links provided by the National Library of Medicine

Drug Information available for: Aspirin
U.S. FDA Resources

Primary Outcome Measures :
  1. major adverse cardiac events (MACE) including death, acute coronary syndromes, cardiac decompensation, stroke, major amputations. [ Time Frame: 2 years ]

Secondary Outcome Measures :
  1. major amputations, death [ Time Frame: 2 years ]

Information from the National Library of Medicine

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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:   Probability Sample
Study Population
patients hospitalized for critical limb ischaemia and aspirin resistant using the VerifyNow®.

Inclusion Criteria:

  • any adult patient hospitalized for critical limb ischaemia and already treated by aspirin for at least 4 days before the VerifyNow® test. Critical limb ischemia is defined by the TASC II criteria : chronic ischemic rest pain, ulcers or gangrene attributable to objectively proven arterial occlusive disease, confirmed by an ankle pressure subordinate or equal 50 mmHg and a toe pressure subordinate or equal 30 mmHg, or a transcutaneous oxygen tension subordinate or equal 30 mmHg

Exclusion Criteria:

  • non observance to aspirin treatment, other drugs that could interact with platelets (NSAIDs, other anti-platelet agents), other peripheral vascular disease status than critical limb ischemia, acute limb ischemia, platelet number lower than 100 000/mm3, hematocrit lower than 29%, known primary hemostasis disorder.

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 identifier (NCT number): NCT01104441

Contact: Alexandre Le Guyader, Doctor (+33)(0)5 55 05 63 71

UH Bordeaux Recruiting
Bordeaux, France, 33 075
Contact: Joël Constans, Professor    (+33)(0)5 56 79 58 16   
UH Toulouse Recruiting
Toulouse, France, 31 059
Contact: Alessandra Bura-Riviere, Professor    (+33)(0)5 61 32 24 38   
Sponsors and Collaborators
University Hospital, Limoges

Responsible Party: University Hospital, Limoges Identifier: NCT01104441     History of Changes
Other Study ID Numbers: I08022
First Posted: April 15, 2010    Key Record Dates
Last Update Posted: December 5, 2012
Last Verified: April 2010

Keywords provided by University Hospital, Limoges:
critical limb ischaemia
Aspirin resistance

Additional relevant MeSH terms:
Pathologic Processes
Anti-Inflammatory Agents, Non-Steroidal
Analgesics, Non-Narcotic
Sensory System Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Anti-Inflammatory Agents
Antirheumatic Agents
Fibrinolytic Agents
Fibrin Modulating Agents
Molecular Mechanisms of Pharmacological Action
Platelet Aggregation Inhibitors
Cyclooxygenase Inhibitors
Enzyme Inhibitors