NCT02713152

Brief Summary

This study aims to investigate a potential link between Obstructive Sleep Apnoea (OSA) and Open Angle Glaucoma (OAG); initially by determining whether the prevalence of OSA is higher in patients with OAG in comparison to people without glaucoma and if OSA is an independent risk factor for OAG. It will comprehensively phenotype glaucoma patients for variables that may be associated with both OSA and OAG.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
403

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Mar 2016

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

First Submitted

Initial submission to the registry

January 25, 2016

Completed
1 month until next milestone

Study Start

First participant enrolled

March 1, 2016

Completed
17 days until next milestone

First Posted

Study publicly available on registry

March 18, 2016

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 14, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 14, 2017

Completed
Last Updated

December 2, 2017

Status Verified

November 1, 2017

Enrollment Period

1.5 years

First QC Date

January 25, 2016

Last Update Submit

November 29, 2017

Conditions

Outcome Measures

Primary Outcomes (1)

  • Diagnosis of OSA

    Clinical diagnosis of OSA defined as apnoea hypopnoea index (AHI) \>5

    Within 24 hours of recruitment on to study (cross-sectional)

Secondary Outcomes (9)

  • OSA severity

    24 hours

  • Glaucoma severity

    24 hours

  • Ocular perfusion pressure (OPP)

    24 hours

  • Postural changes in intraocular pressure (IOP)

    24 hours

  • Optic nerve head perfusion

    24 hours

  • +4 more secondary outcomes

Study Arms (2)

Patients with OAG

Patients with a diagnosis of Open Angle Glaucoma

Controls

Controls without a diagnosis of Open Angle Glaucoma

Eligibility Criteria

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

Patients and healthy volunteers

You may qualify if:

  • Glaucoma patients:
  • Open angle glaucoma (including primary open angle glaucoma, normal tension glaucoma and pseudoexfoliation glaucoma) in either eye.
  • Age ≥18 years
  • Able to give informed consent and attend at the required frequency for the duration of the study.
  • Control group:
  • Age ≥18 years
  • Able to give informed consent and attend at the required frequency for the duration of the study.

You may not qualify if:

  • Glaucoma patients:
  • Unable to perform reliable visual field testing (\>15% false positives, \>20% fixation losses. However, if fixation losses are \>20%, the eye tracker may be used to assess reliability)
  • Known or suspected pregnancy.
  • Tracheostomy
  • Use of nocturnal oxygen for indications other than sleep related breathing disorders (SBD).
  • Control group:
  • Known or suspected pregnancy
  • Known or suspected glaucoma (participants with glaucoma diagnosed during screening ophthalmic examination and newly identified glaucoma 'suspects' will also be excluded)
  • Inability to undergo screening ophthalmic examination
  • Tracheostomy
  • Use of nocturnal oxygen for indications other than sleep related breathing disorders (SBD).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hinchingbrooke Hospital NHS Foundation Trust

Huntingdon, Cambridgeshire, PE29 6NT, United Kingdom

Location

MeSH Terms

Conditions

Sleep Apnea, ObstructiveGlaucoma, Open-Angle

Condition Hierarchy (Ancestors)

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

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER GOV
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 25, 2016

First Posted

March 18, 2016

Study Start

March 1, 2016

Primary Completion

September 14, 2017

Study Completion

September 14, 2017

Last Updated

December 2, 2017

Record last verified: 2017-11

Data Sharing

IPD Sharing
Will not share

Will not be sharing individual participant data. All study data will be anonymised.

Locations