Early Stage Retinal Abnormalities in Type 1 Diabetes, Screened With OCT Angiography.

NCT ID: NCT03496597

Last Updated: 2022-03-10

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

520 participants

Study Classification

OBSERVATIONAL

Study Start Date

2018-02-23

Study Completion Date

2023-08-31

Brief Summary

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The improvement of imaging techniques in ophthalmology has made it possible to carry out a precise non-invasive study of the retinal microvascular network and to detect early abnormalities in retinal disorders. The presence of such early retinal abnormalities remains poorly known during type 1 diabetes and may be detected with OCT-angiography. Furthermore, the association with glycemic variability, likely to have deleterious effects on microvessels, has never been studied.

Detailed Description

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Conditions

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Type 1 Diabetes Patients

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Patients

type 1 diabetes patients

Retinal imaging assessment

Intervention Type PROCEDURE

* OCT-angiography
* Automated measurement program: size of the avascular zone and perifoveolar vascular density of the superficial capillary plexus
* Eye fundus photography: macular image
* Measurement of the fractal dimension of the retinal foveolar retina from photographs of the fundus

blood glucose holter

Intervention Type PROCEDURE

for 40 subjects, implantation of a blood glucose holter monitor for 7 days

Healthy controls

non diabetic control subjects of the same age

Retinal imaging assessment

Intervention Type PROCEDURE

* OCT-angiography
* Automated measurement program: size of the avascular zone and perifoveolar vascular density of the superficial capillary plexus
* Eye fundus photography: macular image
* Measurement of the fractal dimension of the retinal foveolar retina from photographs of the fundus

Dyslipidemic controls

non-diabetic control participants with familial dyslipidemia

Retinal imaging assessment

Intervention Type PROCEDURE

* OCT-angiography
* Automated measurement program: size of the avascular zone and perifoveolar vascular density of the superficial capillary plexus
* Eye fundus photography: macular image
* Measurement of the fractal dimension of the retinal foveolar retina from photographs of the fundus

Interventions

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Retinal imaging assessment

* OCT-angiography
* Automated measurement program: size of the avascular zone and perifoveolar vascular density of the superficial capillary plexus
* Eye fundus photography: macular image
* Measurement of the fractal dimension of the retinal foveolar retina from photographs of the fundus

Intervention Type PROCEDURE

blood glucose holter

for 40 subjects, implantation of a blood glucose holter monitor for 7 days

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

For the patient group

* Patient who has given consent

* Type 1 diabetic patient, no retinopathy For the healthy control group
* Patient who has given consent
* Non-diabetic patient

For dyslipidemic control group:

* Person who has given consent
* Person with familial dyslipidemia

Exclusion Criteria

For the patient group

* Presence of diabetic retinopathy
* Protected patient:

* Minor patient
* Pregnant, parturient or breastfeeding woman
* Patient under legal protection (guardianship, curatorship, court decision)
* Patient unable to express consent Person not affiliated to a health insurance scheme

For the healthy control group

* Ophthalmological history (vascular and degenerative macular conditions)
* Protected patient:

* Minor patient
* Pregnant, parturient or breastfeeding woman
* Patient under legal protection (guardianship, curatorship, court decision)
* Patient unable to express consent Person not affiliated to a social security scheme

For dyslipidemic control group:

* Ophthalmological history (vascular and degenerative macular conditions)
* Protected patient:

* Minor patient
* Pregnant, parturient or breastfeeding woman
* Patient under legal protection (guardianship, curatorship, court decision)
* Patient unable to express consent Person not affiliated to a social security scheme
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Centre Hospitalier Universitaire Dijon

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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CHU Dijon Bourgogne

Dijon, , France

Site Status RECRUITING

Countries

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France

Facility Contacts

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Bruno VERGES, MD

Role: primary

03.80.29.38.54

Other Identifiers

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VERGES 2017

Identifier Type: -

Identifier Source: org_study_id

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