Brinzolamide-brimonidine Fixed Combination for Preventing IOP Elevation

Status Completed

Clinical Trial Summary

This study aims to evaluate the effect of topical prophylaxis with brinzolamide-brimonidine fixed combination on short-term intraocular pressure (IOP) elevation after intravitreal injections of anti-vascular endothelial growth factors (anti-VEGF).

Patients scheduled for treatment with intravitreal injections of anti-VEGF will be randomly divided into two groups. In control group no prophylactic medication will be used, whereas in case group one drop of brinzolamide-brimonidine fixed combination will be instilled two hours before the injection. IOP will be measured before the injection, 1 minute after the injection, 10 minutes and 30 minutes post-injection in all eyes. In case group, the pre-injection IOP will be measured prior to the administration of the fixed combination of brinzolamide-brimonidine. The iCare (IC200) tonometer will be used for IOP measurements at all time points.

Clinical Trial Description

The intravitreal anti-VEGF (ranibizumab, bevacizumab, pegaptanib and aflibercept) are commonly used in the treatment of diabetic macular edema, neovascular age-related macular degeneration and other pathologies characterized by retinal or choroidal neovascularization. Intravitreal injections οf anti-VEGF agents result in an immediate and transient increase in IOP, which returns to normal within a short period of time, typically within thirty minutes. Repeated intravitreal injections and prolonged treatments seem to be associated with sustained elevation of IOP, leading to the initiation of ocular hypotensive medication and glaucoma filtration surgery. A fixed-dose combination of brinzolamide 1%, a carbonic anhydrase inhibitor, and brimonidine 0,2%, an alpha 2 adrenergic receptor agonist, represents a safe and effective drug in glaucoma treatment and its ocular hypotensive effect has been demonstrated similar to or better than the unfixed combinations of its component drugs. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT04523844
Study type	Interventional
Source	General Hospital of Athens Elpis
Contact
Status	Completed
Phase	N/A
Start date	May 11, 2020
Completion date	July 30, 2020

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Brinzolamide-brimonidine Fixed Combination for Preventing IOP Elevation After Intravitreal Anti-VEGF Injections

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms