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Protocol Memory Deficit in Patients With Obstructive Sleep Apnea Syndrome

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: NCT00464659
Recruitment Status : Completed
First Posted : April 23, 2007
Last Update Posted : December 30, 2015
Information provided by (Responsible Party):
University Hospital, Grenoble

Brief Summary:

The main objective of this study is to evaluate the evolution of memory deficit (verbal episodic memory, procedural memory, working memory, short-term memory) in Sleep Apnea Obstructive Syndrome (SAOS) patients after treatment by Continuous Positive Airway Pressure treatment (CPAP). For thus, we will compare memory tests in two separate groups of SAOS patients with "effective " versus "ineffective" ( or sham) CPAP, before and 6 weeks after the beginning of the treatment. Thus we will assess the evolution of memory deficit, the effectiveness of the treatment on the evolution of memory deficit before and 6 weeks after the beginning of the treatment by "effective " versus "ineffective" CPAP.

We feel the results of the tests of memory will show greater memory disorders in patients with SAOS before beginning the treatment rather than six weeks afterwards. Thus we hypothesise that, after the treatment by "effective" CPAP, the patients with SAOS will have greater improvement of their memory disorders than those treated by "sham CPAP".

Condition or disease Intervention/treatment Phase
Memory Deficit Device: Effective CPAP Device: Sham CPAP Not Applicable

Detailed Description:
We want to assess the evolution, before and 6 weeks after the beginning of the treatment, of the significant differences of the performances of the various memory tests evaluating several forms of memory (episodic memory, working memory, short-term memory and procedural memory) according to the treatment for patients with SAOS (effective versus sham).

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 40 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple (Participant, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Comparison of the Evolution of Memory Deficit in Patients With Sleep Apnea Obstructive Syndrome (SAOS) Before and After "Effective" Versus Sham Treatment by Positive Pression Continues (PPC)
Study Start Date : April 2007
Actual Primary Completion Date : June 2013
Actual Study Completion Date : June 2013

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Memory Sleep Apnea

Arm Intervention/treatment
Experimental: Effective CPAP treatment
Effective Continuous Positive Airway Pressure treatment (CPAP) applied for 6 weeks
Device: Effective CPAP
Auto-titrating CPAP machines (Remstar Auto; Philips Respironics, Murrysville, PA) provided by a home care company (Bastide Medical, France). Pressure was set between 6 and 14 cm of water

Sham Comparator: Sham CPAP treatment
Ineffective Continuous Positive Airway Pressure treatment (sham CPAP) applied for 6 weeks
Device: Sham CPAP
Similar CPAP machine delivering a 4 cm of water pressure that was too low to suppress sleep respiratory events.

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Major patients,
  • agreeing,
  • diagnosed suffering from the SAOS,
  • regulation by the specialist in a treatment by CPAP,
  • patients do not begin the treatment
  • affiliated to the social security,
  • fluent in French.

Exclusion Criteria:

  • Patients presenting severe depressive disorders (HADS score>19),
  • intellectual deterioration (MMS< 28),
  • a functional failure of the dominant arm upper limb inhibiting realization of graphic tasks,
  • an associated oxygen treatment,
  • suffering from cancer,
  • cerebro-vascular accident,
  • pregnant or nursing women,
  • adult under supervision or trusteeship,
  • patients already included in another research protocol or in period of exclusion,
  • antidepressant and anxiolytic treatment.

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): NCT00464659

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Laboratoire EFCR-Functional Cardio-Respiratory Exploration Laboratory
Grenoble, Isere, France
Sponsors and Collaborators
University Hospital, Grenoble
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Principal Investigator: Jean-Louis JP Pépin, ProfessorPhD University Hospital, Grenoble
Publications automatically indexed to this study by Identifier (NCT Number):
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Responsible Party: University Hospital, Grenoble Identifier: NCT00464659    
Other Study ID Numbers: 0629
First Posted: April 23, 2007    Key Record Dates
Last Update Posted: December 30, 2015
Last Verified: December 2015
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description: All individual patient data are anonymized
Keywords provided by University Hospital, Grenoble:
Sleep apnea obstructive syndrome (SAOS)
memory deficit
Continuous Positive Airway Pression (CPAP)
Additional relevant MeSH terms:
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Sleep Apnea Syndromes
Memory Disorders
Respiration Disorders
Respiratory Tract Diseases
Sleep Disorders, Intrinsic
Sleep Wake Disorders
Nervous System Diseases
Neurobehavioral Manifestations
Neurologic Manifestations