NCT01481636

Brief Summary

The purpose of this study is to investigate the correlation between health outcomes associated with the severity of obstructive sleep apnea (OSA) symptomatology, the findings will guide the design of interventional studies.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
66

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Nov 2011

Typical duration for all trials

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

November 1, 2011

Completed
23 days until next milestone

First Submitted

Initial submission to the registry

November 24, 2011

Completed
5 days until next milestone

First Posted

Study publicly available on registry

November 29, 2011

Completed
2.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2014

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2014

Completed
Last Updated

June 17, 2014

Status Verified

June 1, 2014

Enrollment Period

2.6 years

First QC Date

November 24, 2011

Last Update Submit

June 16, 2014

Conditions

Keywords

Obstructive sleep apneacorrelationAHIsymptomsmechanisms

Outcome Measures

Primary Outcomes (1)

  • Apnea-Hypopnea Index (AHI)

    AHI refers to how is the number of apneas and hypopneas per an hour of sleep.

    one night within four weeks of study.

Secondary Outcomes (34)

  • Residual volume

    Within four weeks of recruitment prior to CPAP treatment

  • Functional residual volume

    Within four weeks of recruitment prior to CPAP treatment

  • Total lung capacity

    Within four weeks of recruitment prior to CPAP treatment

  • Forced Vital capacity

    Within four weeks of recruitment prior to CPAP treatment

  • Forced expiratory volume in one second (FEV1)

    Within four weeks of recruitment prior to CPAP treatment

  • +29 more secondary outcomes

Study Arms (1)

No treatment, OSA (AHI >15)

Patients with OSA recruited prior to receiving NHS treatment.

Eligibility Criteria

Age18 Years - 70 Years
Sexmale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Mild to severe recently diagnosed Obstructive Sleep Apnea patients selected by physician who have not received any treatment for their condition. Selected from Ysbyty Gwynedd in North Wales.

You may qualify if:

  • Body Mass Index ≤39
  • Not received any treatment for Obstructive Sleep Apnea.
  • Is a non-smoker
  • Is not epileptic
  • Epworth Sleepiness Scale ≥ 10.
  • Patient's on Statins or antihypertensive drugs are included as so frequent in OSA.

You may not qualify if:

  • Body Mass Index ≥ 39.
  • Presence of significant or unstable Renal, Liver or Heart Failure.
  • Receiving anti-diabetic treatment.
  • Is a smoker.
  • Is epileptic
  • Presence of significant or unstable psychological morbidities.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Betsi Cadwaladr University Health Board

Bangor, Gwynedd, LL57 2PW, United Kingdom

Location

Biospecimen

Retention: SAMPLES WITHOUT DNA

Blood serum

MeSH Terms

Conditions

Sleep Apnea, Obstructive

Condition Hierarchy (Ancestors)

Sleep Apnea SyndromesApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System Diseases

Study Officials

  • Christopher MN Earing, MSc

    School of Sport, Health and Exercise Sciences, Bangor University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 24, 2011

First Posted

November 29, 2011

Study Start

November 1, 2011

Primary Completion

June 1, 2014

Study Completion

June 1, 2014

Last Updated

June 17, 2014

Record last verified: 2014-06

Locations