- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01560975
IOP Fluctuations in Patients With Sleep Apnea With or Without Primary Open Angle Glaucoma Using Positive Airway Pressure
A Prospective, Explorative, Open Label Study to Assess the 24-hour Intraocular Pressure Fluctuation Profile Recorded With SENSIMED Triggerfish® in Patients With Moderate to Severe Obstructive Sleep Apnea Syndrome Using Continuous Positive Airway Pressure With or Without Primary Open Angle Glaucoma
Sleep apnea is characterized by repetitive episodes of decreased or interrupted airflow in the upper airways during sleep. Obstructive sleep apnea syndrome (OSAS) is the most common sleep-related breathing disorder and is characterized by repeated partial or complete upper airway collapse, gasping episodes, daytime sleepiness and fatigue. Once suspected, the diagnosis is made on the basis of anamnesis and a polysomnography (PSG) using the so-called respiratory disturbance index (RDI) to grade OSAS. Standard therapy consists of continuous positive airway pressure (CPAP) during sleep to prevent upper airway collapse. The association between OSAS and glaucoma has been extensively studied, although a few reports have been non-confirmatory. OSAS has been associated with reduced ocular blood flow, leading to hypoxia and hypercapnia, and as such, may represent a risk factor for glaucomatous optic neuropathy. OSAS has also been related to loss of nycthemeral rhythm of intraocular pressure (IOP). In addition, CPAP has been reported to increase IOP when used during nighttime.
The purpose of this study is to investigate how IOP varies in time, particularly during sleep in OSAS patients with or without glaucoma, and if the IOP variations are associated with the use of CPAP. IOP fluctuations will be monitored with SENSIMED Triggerfish®, a portable investigational device using a contact lens sensor that monitors the IOP fluctuation continuously over 24-hours.
Study Overview
Status
Intervention / Treatment
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
New York
-
New-York, New York, United States, 10003
- The New York Eye and Ear Infirmary
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Patients with a confirmed diagnosis of moderate to severe OSAS, determined by a RDI > 15 on PSG
- Patient has either POAG with controlled IOP or no glaucoma. Five of each will included in the study
- Patients under CPAP therapy
- Aged ≥ 18 years, of either sex
- Not more than 4 diopters spherical equivalent on the study eye
- Not more than 2 diopters cylinder equivalent on the study eye
- Have given written informed consent, prior to any investigational procedures
Exclusion Criteria:
- Sleep disorders other than OSAS
- Use of sleep medication
- Patients with history of intraocular surgery (including laser therapy) within the last 3 months
- Corneal or conjunctival abnormality hindering contact lens adaptation
- Severe dry eye syndrome
- Patients with allergy to corneal anesthetic
- Patients with contraindications for silicone contact lens wear
- Patients not able to understand the character and individual consequences of the investigation
- Participation in other clinical research within the last 30 days
Study Plan
How is the study designed?
Design Details
- Primary Purpose: DIAGNOSTIC
- Allocation: NA
- Interventional Model: SINGLE_GROUP
- Masking: NONE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Sensimed Triggerfish
|
Portable investigational device using a contact lens sensor that monitors the IOP fluctuation continuously over 24-hours
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Relationship Between IOP Fluctuation Pattern With or Without CPAP Therapy in Patients With Moderate to Severe OSAS With or Without POAG
Time Frame: 24 hours
|
24-hour IOP fluctuation pattern recorded using Triggerfish in patients with moderate to severe OSAS.
|
24 hours
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Relationship Between the 24-hour IOP Fluctuation Patterns and Physiologic Parameters
Time Frame: 24-hours
|
Heart rate and ocular pulsation rate during sleep:
|
24-hours
|
Effect After CPAP Removal on the IOP Pattern
Time Frame: 30 min
|
IOP pattern immediately after CPAP removal upon waking in patients with or without POAG
|
30 min
|
Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- TF-1108
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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