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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT02947555
Other study ID # PTEBEL 01/2015
Secondary ID
Status Recruiting
Phase
First received
Last updated
Start date May 1, 2016
Est. completion date December 31, 2019

Study information

Verified date February 2019
Source University of Pecs
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The rate of lens autofluorescence will be compared in diabetic and non diabetic patients with/without atherosclerotic vascular diseases to evaluate if it is associated with the risk of cardiovascular diseases.


Description:

The rate of lens autofluorescensce is associated with the accumulation of advanced glication endproducts (AGE).The concetration of AGE increases with age but is also higher in diabetic patients. There is evidence that diabetes could be diagnosed via the detection of lens autofluorescence. The investigators are planning a cross sectional clinical trial to evaluate if the rate of lens autofluorescence could be associated with the clinical appearance of atherosclerotic vascular diseases in diabetic/non-diabetic patients and in patients who already had atherosclerotic vascular events and patients without previous atherosclerotic events. The cardiovascular and metabolic histoty of patients will be evaluated using a questionaire. Antropometrical data, blood pressure, heart rate, glucose metabolism, serum lipid profile, CRP, serum creatinine (eGFR) will be assased. ClearPath DS-120 biomicroscopical optical system (Freedom Meditech, San Diego, CA, USA) will be used for the measurment of lens autofluorescence. The measurement will be performed on one eye. Data of the different patient groups will be compared using ANOVA, a value of p<0.05 will be considered significant.


Recruitment information / eligibility

Status Recruiting
Enrollment 420
Est. completion date December 31, 2019
Est. primary completion date December 31, 2019
Accepts healthy volunteers No
Gender All
Age group 18 Years to 75 Years
Eligibility Inclusion Criteria:

- Patients aged 18-75 years either wit type 2 diabetes or non-diabetic, either having atherosclerotic vascular events in history or not (ACS, angina pectoris, stroke, TIA, clinically symptomatic PAD, atherosclerosis based amputation, stent implantation, angiplasty) Diabetes present for more than 1 year.

Exclusion Criteria:

- patient did not signe informed consent

- cataract

- after cataract operation, after optical operation, after sclera injury

- fluorescein angiograpy performed in 6 months

- diseases affecting the eye surface( sleritis, Sjogren sy)

Study Design


Related Conditions & MeSH terms

  • Diabetic Patients With/Without Atherosclerotic Diseases

Intervention

Other:
Non interventional


Locations

Country Name City State
Hungary 2nd Department of Medicine and Nephrological Center Pécs Baranya

Sponsors (6)

Lead Sponsor Collaborator
Dr. Gergo Molnár Bajcsy-Zsilinszky Kórház, Petz Aladar County Teaching Hospital, Polytech Hungaria Kft., Semmelweis University Heart and Vascular Center, Vanderlich Egészségcentrum

Country where clinical trial is conducted

Hungary, 

Outcome

Type Measure Description Time frame Safety issue
Primary Association of lens autofluorescence with atherosclerotic vascular events Measurement of the autofluorescence of lens proteins and assessement of its association with the occurrance of atherosclerotic vascular events 2 years
Secondary Association of lens autofluorescence with the perscene of diabetes Measurement of the autofluorescence of lens proteins and assessement of its association with the persence of diabetes type 2 diabetes 2 years
Secondary Association of lens autofluorescence with renal function Measurement of the autofluorescence of lens proteins and assessement of its association with renal function (eGFR) 2 years
Secondary Association of lens autofluorescence with glucose metabolism parameteres Measurement of the autofluorescence of lens proteins and assessement of its association with glucose metabolism parameteres (ex. HBA1C, HOMA IR) 2 years
Secondary Association of lens autofluorescence with lipid profile Measurement of the autofluorescence of lens proteins and assessement of its association with serum lipid values (serum total cholesterol, triglycerids, LDL, HDL) 2 years
Secondary Association of lens autofluorescence with CRP Measurement of the autofluorescence of lens proteins and assessement of its association with CRP level 2 years
Secondary Association of lens autofluorescence with antropoetric parameters Measurement of the autofluorescence of lens proteins and assessement of its association with antropometric parameteres (body weight, height, BMI, waist-hip ratio) 2 years