Exploration of Microcirculatory Alteration and Endothelial Dysfunction by Adaptive Optics in Multiple Sclerosis

Overview

It's a pilot, interventional prospective monocentric study. It aims to compare the wall / lumen ratio (WLR) of retinal arterioles (common marker of microangiopathies) between patients with multiple sclerosis and controls using the technique of adaptive optics.

Study Type

  • Study Type: Interventional
  • Study Design
    • Allocation: Non-Randomized
    • Intervention Model: Parallel Assignment
    • Primary Purpose: Basic Science
    • Masking: None (Open Label)
  • Study Primary Completion Date: October 26, 2017

Interventions

  • Other: Ocular fundus on patient with Multiple Sclerosis
    • Ocular fundus on patient with Multiple Sclerosis
  • Other: Ocular Fundus on voluntary person
    • Ocular Fundus on voluntary person

Arms, Groups and Cohorts

  • Other: Control Arm
  • Active Comparator: Multiple Sclerosis Arm

Clinical Trial Outcome Measures

Primary Measures

  • To compare the wall / lumen ratio (WLR) of retinal arterioles (common marker of microangiopathies) between multiple sclerosis patients and controls using the adaptive optics technique.
    • Time Frame: Day 0

Secondary Measures

  • Compare between patients with multiple sclerosis and controls, retinal arteriolar gauges measured by external and internal diameter.
    • Time Frame: Day 0
  • Correlate possible changes in arteriolar WLR with internal and external diameter, smoking, age, blood pressure, fatigue (MFIS), cognition (MDT) and disability (EDSS) scores to ambient air and normobaric oxygen.
    • Time Frame: Day 0

Participating in This Clinical Trial

Patient Inclusion Criteria

  • Major patient between 18 and 50 years – Patient with relapsing or remitting multiple sclerosis defined according to revised Mc Donald criteria 2010 – Written, free and informed consent dated and signed – Patient affiliated to a social security scheme Control Inclusion Criteria:

  • Person between the ages of 18 and 50 – Written, free and informed consent dated and signed – Person affiliated to a social security scheme – Person with multiple sclerosis Exclusion Criteria:

  • Contraindication to the use oxygen (O2): Acute or chronic respiratory insufficiency – Pregnant or lactating woman – Inability to see fundus (cataract), retinopathy, glaucoma – Use of vasoactive substances (eg nasal decongestants, triptans, alkaloids) in the last 48 hours – Use of nonsteroidal anti-inflammatory drugs (ibuprofen, naproxen, ..) and steroids (corticosteroids) in the last 48 hours – Known Diabetes or taking antidiabetics in the last 48 hours – Use of statins in the last 48 hours – Known hypertension or antihypertensive treatment in the last 48 hours – Any cardiac pathology (valvulopathy, angina, ventricular arrhythmia or atrial fibrillation), vascular (arteritis obliterating the lower limbs, stenosis of the arteries with encephalic destiny, coronary artery disease) or significant respiratory (asthma, Chronic obstructive pulmonary disease, interstitial pathology) – Alcohol consumption within 8 hours – Ophthalmoparesis or incapacitating nystagmus (impossibility of correctly evaluating the fundus)

Gender Eligibility: All

Minimum Age: 18 Years

Maximum Age: 50 Years

Are Healthy Volunteers Accepted: Accepts Healthy Volunteers

Investigator Details

  • Lead Sponsor
    • Versailles Hospital
  • Provider of Information About this Clinical Study
    • Principal Investigator: Dr Dan BUCH, Principal Investigator – Versailles Hospital

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