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Effect Aflibercept on Ocular Perfusion

NCT03804099 · Status: COMPLETED · Phase: PHASE4 · Type: INTERVENTIONAL · Enrollment: 20

Last updated 2019-01-15

No results posted yet for this study

Summary

Age-related macular degeneration (AMD) is the leading cause of irreversible visual impairment in Western Countries. It is a well-established fact that vascular endothelial growth factor (VEGF) plays a key part in the development of the neovascular (or exsudative) form of AMD. Today, VEGF-inhibition by means of injection of anti-VEGF agents into the vitreous cavity constitutes the gold standard of AMD therapy. In physiological conditions, VEGF acts as a vasodilator by activating endothelial nitric oxide synthase. As a consequence, VEGF inhibition should result in significant ocular vasoconstriction, which has in fact been demonstrated for bevacizumab and ranibizumab, two of the three available VEGF-inhibitors. The understanding and awareness of potentially harmful implications of the induced vasoconstriction on retinal and/or optic nerve head structure and function is sparse. This is especially delicate, as most patients with exsudative AMD require repeated injections on a monthly basis for many years. Aflibercept, the latest anti-VEGF agent approved for intravitreal use in 2011, offers a superior binding affinity for VEGF compared to the former two drugs. However, as of today, its effect on ocular circulation is unclear. With Laser Speckle Flowgraphy (LSFG), a commercially available, non-invasive and patient-friendly method for the evaluation of blood flow at the optic nerve head, the choroid and retina has arisen in recent years.

We aim to measure ocular perfusion with LSFG before and after 3 consecutive injections of aflibercept in unilateral neovascular age-related maculopathy.

Conditions

  • Macular Degeneration
  • Anti Vascular Endothelial Growth Factor

Interventions

DRUG

Aflibercept Injection [Eylea]

After instillation of topical anesthetic, sterilization of the eyelid, and instillation of 1.25% povidone-iodine drops, 2.0 mg/0.05 mL of aflibercept (Eylea) is injected into the vitreous cavity through a standard pars plana approach (3.5 mm posterior to the limbus) under sterile conditions

Sponsors & Collaborators

  • Augenabteilung Allgemeines Krankenhaus Linz

    lead OTHER

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2017-03-01
Primary Completion
2018-03-20
Completion
2018-05-18

Countries

  • Austria

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03804099 on ClinicalTrials.gov