NCT00464659

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".

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
40

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Apr 2007

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 1, 2007

Completed
19 days until next milestone

First Submitted

Initial submission to the registry

April 20, 2007

Completed
3 days until next milestone

First Posted

Study publicly available on registry

April 23, 2007

Completed
6.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2013

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2013

Completed
Last Updated

December 30, 2015

Status Verified

December 1, 2015

Enrollment Period

6.2 years

First QC Date

April 20, 2007

Last Update Submit

December 29, 2015

Conditions

Keywords

Sleep apnea obstructive syndrome (SAOS)memory deficitContinuous Positive Airway Pression (CPAP)Sham CPAP

Study Arms (2)

Effective CPAP treatment

EXPERIMENTAL

Effective Continuous Positive Airway Pressure treatment (CPAP) applied for 6 weeks

Device: Effective CPAP

Sham CPAP treatment

SHAM COMPARATOR

Ineffective Continuous Positive Airway Pressure treatment (sham CPAP) applied for 6 weeks

Device: Sham CPAP

Interventions

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

Effective CPAP treatment
Sham CPAPDEVICE

Similar CPAP machine delivering a 4 cm of water pressure that was too low to suppress sleep respiratory events.

Sham CPAP treatment

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • 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.

You may not qualify if:

  • 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,
  • antidepressant and anxiolytic treatment.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Laboratoire EFCR-Functional Cardio-Respiratory Exploration Laboratory

Grenoble, Isere, France

Location

Related Publications (6)

  • Beebe DW, Gozal D. Obstructive sleep apnea and the prefrontal cortex: towards a comprehensive model linking nocturnal upper airway obstruction to daytime cognitive and behavioral deficits. J Sleep Res. 2002 Mar;11(1):1-16. doi: 10.1046/j.1365-2869.2002.00289.x.

    PMID: 11869421BACKGROUND
  • Engleman HM, Douglas NJ. Sleep. 4: Sleepiness, cognitive function, and quality of life in obstructive sleep apnoea/hypopnoea syndrome. Thorax. 2004 Jul;59(7):618-22. doi: 10.1136/thx.2003.015867.

    PMID: 15223874BACKGROUND
  • Farre R, Hernandez L, Montserrat JM, Rotger M, Ballester E, Navajas D. Sham continuous positive airway pressure for placebo-controlled studies in sleep apnoea. Lancet. 1999 Apr 3;353(9159):1154. doi: 10.1016/S0140-6736(99)01056-9. No abstract available.

    PMID: 10209985BACKGROUND
  • Naegele B, Launois SH, Mazza S, Feuerstein C, Pepin JL, Levy P. Which memory processes are affected in patients with obstructive sleep apnea? An evaluation of 3 types of memory. Sleep. 2006 Apr;29(4):533-44. doi: 10.1093/sleep/29.4.533.

    PMID: 16676787BACKGROUND
  • Joyeux-Faure M, Naegele B, Pepin JL, Tamisier R, Levy P, Launois SH. Continuous positive airway pressure treatment impact on memory processes in obstructive sleep apnea patients: a randomized sham-controlled trial. Sleep Med. 2016 Aug;24:44-50. doi: 10.1016/j.sleep.2016.06.023. Epub 2016 Aug 23.

  • Jullian-Desayes I, Tamisier R, Zarski JP, Aron-Wisnewsky J, Launois-Rollinat SH, Trocme C, Levy P, Joyeux-Faure M, Pepin JL. Impact of effective versus sham continuous positive airway pressure on liver injury in obstructive sleep apnoea: Data from randomized trials. Respirology. 2016 Feb;21(2):378-85. doi: 10.1111/resp.12672. Epub 2015 Nov 16.

MeSH Terms

Conditions

Memory DisordersSleep Apnea, Obstructive

Condition Hierarchy (Ancestors)

Neurobehavioral ManifestationsNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and SymptomsSleep Apnea SyndromesApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake Disorders

Study Officials

  • Jean-Louis JP Pépin, ProfessorPhD

    University Hospital, Grenoble

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 20, 2007

First Posted

April 23, 2007

Study Start

April 1, 2007

Primary Completion

June 1, 2013

Study Completion

June 1, 2013

Last Updated

December 30, 2015

Record last verified: 2015-12

Data Sharing

IPD Sharing
Will share

All individual patient data are anonymized

Locations