Aspirin Resistance and Sleep Apnea (AREAS)

The recruitment status of this study is unknown because the information has not been verified recently.
Verified February 2013 by University Hospital, Grenoble.
Recruitment status was  Recruiting
Information provided by (Responsible Party):
University Hospital, Grenoble Identifier:
First received: February 7, 2013
Last updated: NA
Last verified: February 2013
History: No changes posted

February 7, 2013
February 7, 2013
February 2013
February 2013   (final data collection date for primary outcome measure)
Response to antiplatelet therapy [ Time Frame: Measure will be done in the morning after the sleep diagnosis ] [ Designated as safety issue: No ]
Same as current
No Changes Posted
Effects of CPAP treatment for severe obstructive sleep apnea on aspirin efficacity in type-2 diabetic patients [ Time Frame: Change from baseline after 3 months randomized treatment ] [ Designated as safety issue: No ]
Same as current
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Aspirin Resistance and Sleep Apnea
Obstructive Sleep Apnea and Aspirin Resistance in Type-2 Diabetic Patients

Type-2 Diabetes and Sleep Apnea Syndrome (SAS) are both related to an increase in platelet activation. Type 2 diabetes is often associated with sleep apnea syndrome with a prevalence up to 60%.

The main objective of our study is to analyze the influence of sleep apnea on the response to antiplatelet therapy in stable aspirin-treated type-2 diabetes patients.

Consecutive stable aspirin-treated type-2 diabetes patients referred for suspicion of sleep apnea will be recruited after providing informed consent. Response to aspirin will be assessed with the Verify Now Aspirin(TM)rapid analyser in the morning after nocturnal polysomnography, and compared with a group of type-2 diabetes free of sleep apnea. Other endocrine, metabolic, hematologic and cardiovascular confounders will also be assessed at baseline to determine their influence on the response to aspirin.

Then, Patients with severe SAS (Apnea-Hypopnea Index> 30 events/h)will be randomized to 3 months of active or sham continuous positive airway pressure treatment in a pilot study. After the 3-months of intervention, response to aspirin will be compared between the sham and effective CPAP groups.

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Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver, Investigator)
Primary Purpose: Diagnostic
  • Atherothrombosis
  • Type 2 Diabetes
  • Obstructive Sleep Apnea Syndrome
Device: CPAP
  • Active Comparator: CPAP

    This device consists in a nasal continuous positive airway pressure (CPAP). It will be applied 3 months after the beginning of drug treatment and for 3 months.

    Other Name: positive airway pressure

    Intervention: Device: CPAP
  • Placebo Comparator: Sham-CPAP
    This device consists in a sham CPAP. It will be applied 3 months after the beginning of drug treatment and for 3 months.
    Intervention: Device: CPAP
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*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
Not Provided
February 2013   (final data collection date for primary outcome measure)

Inclusion Criteria:

  • Men and women aged > 18 years old
  • With Type 2 diabetes
  • Stable Atherothrombosis for more than 3 months
  • Using aspirin for more than 10 days
  • Without any modification in their treatments for 10 days
  • Ambulatory patient
  • Without any cardiovascular event or inflammatory disease for 3 months before inclusion

Exclusion Criteria:

  • Pregnant women
  • Other active clinically significant illness, including unstable cardiovascular, or neoplasia which could interfere with the study conduct or counterindicate the study treatments or place the patient at risk during the trial or compromise the study participation
  • Patients participating in an other study
  • Patient without any medical care insurance
  • Any treatment that could interfere with aspirin
  • Previous treatment by CPAP
18 Years and older
Contact: Olivier ORMEZZANO, MD, PhD +33 4 76 76 75 75
Contact: Jean-Louis PEPIN, MD, PhD + 33 4 76 76 55 16
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Not Provided
University Hospital, Grenoble
University Hospital, Grenoble
Not Provided
Principal Investigator: Olivier ORMEZZANO, MD, PhD University Hospital, Grenoble
University Hospital, Grenoble
February 2013

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP