- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02863224
Advanced Glycation End Products as a Biomarker for Accelerated Ageing
Advanced Glycation End Products as a Biomarker for Accelerated Ageing in Glaucomatous Optic Neuropathy
Globally primary open angle glaucoma (POAG) affects over 60 million people. The exact pathogenesis of POAG is poorly understood. A significant risk factor for glaucoma is advancing age. The rate of ageing is not the same in all age matched individuals. The concept of accelerated ageing suggests that the presence of a number of specific genetic, environmental or systemic risk factors may cumulate to accelerate the ageing process in some individuals and lead to the development of age-related disease. Understanding the factors that influence accelerated ageing is vital.
Advanced glycation end products (AGEs) are a complex group of compounds that are naturally formed. They accumulate gradually with age in cells, tissues and blood vessels throughout the body where they adversely affect structure and function. Circulating AGE levels can be influenced by oxidative stress levels and dietary intake. Recent research has found that sustained exposure to high levels of circulating AGEs could be a major factor in the development of a number of chronic age-related degenerative disorders, including POAG.
To date there have been few clinical studies that have been able to non-invasively explore the association between AGE levels and the development and progression of glaucomatous optic neuropathy (GON), or to explore the possible contribution that oxidative stress and dietary intake make to total tissue AGE levels in such patients. Furthermore little is understood about the relationship between AGE levels and retinal vascular function, a parameter known to be altered in GON that also could be influenced by AGE levels.
The proposed study will aim to evaluate whether tissue-bound AGE levels are associated with parameters of retinal vascular function, oxidative stress, dietary intake and the presence of GON. Establishing this association could increase our understanding of the pathogenesis of GON and allow a new biomarker for accelerated ocular ageing to be realised
Study Overview
Status
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
-
-
Devon
-
Plymouth, Devon, United Kingdom, PL4 8AA
- Plymouth University
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Must have had an eye test within the last two years
- Aged 50+
- Informed, written consent
- Have adequate understanding of English language to be able to comprehend the oral and written instructions.
- Participants must be able to complete a 12-hour overnight fast, which includes no alcohol or caffeine.
Inclusion criteria for Ocular hypertension, Primary open angle glaucoma and normal tension glaucoma:
- Follows guidelines set out within the protocol and used at Derriford REI
Exclusion Criteria:
- Diabetes
- Current smokers
- History of stroke/TIA
- Coronary artery disease/heart failure/arrhythmia/angina
- Peripheral vascular disease
- Severe dyslipidaemia
- Hyper/hypothyroidism
Study Plan
How is the study designed?
Design Details
- Observational Models: Case-Control
- Time Perspectives: Prospective
Cohorts and Interventions
Group / Cohort |
---|
Healthy control
|
Ocular hypertension
|
Primary open angle glaucoma
|
Normal tension glaucoma
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Tissue bound AGE level (AU)
Time Frame: Tissue bound AGE level (AU) will be measured for each participant at their second session (within 3 months of volunteering).
|
Level of AGE found in the skin - measured from the lower portion of the arm
|
Tissue bound AGE level (AU) will be measured for each participant at their second session (within 3 months of volunteering).
|
Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (Actual)
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 (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 204642
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.
Clinical Trials on Primary Open Angle Glaucoma
-
Omar SaidCompletedGlaucoma,Primary Open-Angle ,Primary Angle ClosureEgypt
-
Glaucot Teknoloji Anonim SirketiRecruitingPrimary Open-Angle GlaucomaTurkey
-
China Medical University HospitalCompletedEffect of Acupuncture on Visual Acuity and Visual Field in Patients With Primary Open-angle GlaucomaPrimary Open-angle GlaucomaTaiwan
-
InnFocus Inc.CompletedPrimary Open-angle GlaucomaSpain, United States, United Kingdom, France, Italy
-
Glaukos CorporationTerminatedPrimary Open-Angle GlaucomaUnited States
-
Rehab mahmoud abdelhamid mohamedCairo UniversityCompletedPrimary Open-angle GlaucomaEgypt
-
Cairo UniversityUniversity of LuebeckUnknown
-
Xiaodong ZhouCompletedPrimary Open-angle Glaucoma
-
Qlaris Bio, Inc.RecruitingPrimary Open Angle Glaucoma of Both Eyes | Primary Open Angle Glaucoma (POAG) | Primary Open-Angle Glaucoma, Unspecified Eye | Ocular Hypertension (OHT)United States
-
Peking UniversityRecruitingPrimary Open Angle Glaucoma | Ocular Hypertension | Primary Open Angle Glaucoma of Both Eyes | Primary Open-Angle Glaucoma, Unspecified Eye | Suspect GlaucomaChina