Clinical Trials Logo
  1. Home
  2. Intraocular Pressure
  3. NCT00712777

Relation Between Intraocular Pressure Lowering Effects of Topical Brimonidine and Alpha 2 Receptor Polymorphism

Intraocular Pressure Clinical Trial

Official title:
Relation Between Intraocular Pressure Lowering Effects of Topical Brimonidine and Alpha 2 Receptor Polymorphism

Clinical Trial Summary

Topical brimonidine is a recently introduced alpha 2 receptor agonist which is used in the therapy of intraocular pressure (IOP) reduction in patients with open angle glaucoma. Although adequate IOP reduction is achieved in many patients there is a considerable degree of variability in IOP reduction among subjects. The reason for this interindividual variability is not entirely clear. Obviously differences in pharmacokinetic properties due to variable penetration of the drug through the cornea may be responsible. Alternatively, polymorphisms of the alpha-2 receptor may account for the differences in IOP-lowering efficacy of topical brimonidine. This hypothesis is tested in the present study. Polymorphisms of the alpha-2 receptor have been described in a number of previous studies. In addition, polymorphisms in the alpha-2 receptor gene have been shown to be functionally important, particularly a polymorphism of the alpha-2B receptor, which has a high allele frequency in caucasians.

Clinical Trial Description

n/a

Study Design

Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Diagnostic

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00712777
Study type Interventional
Source Medical University of Vienna
Contact
Status Withdrawn
Phase N/A
Start date March 2008
Completion date November 2014
View Details
See also
  Status Clinical Trial Phase
Completed NCT03494257 - Effect of Fixed Brinzolamide-brimonidine Combination on Intraocular Pressure After Phacoemulsification N/A
Completed NCT03016234 - IOP Changes With Different Anesthetic Agents During Laparoscopic Colorectal Surgery N/A
Completed NCT04863209 - Effect of Osteopathic Techiniques on Intraocular Pressure N/A
Completed NCT02646033 - Quantitative Rise in Intraocular Pressure in Steep Trendelenburg Position
Completed NCT03139708 - The Effect of Brimonidine on Intraocular Pressure When Dilating Routine Patients Phase 1
Recruiting NCT02697825 - Intraocular Pressure Versus Optic Nerve Sheath Diameter N/A
Completed NCT02985567 - An Observational Study of the Use of Chloral Hydrate for Ophthalmic Procedures in Children N/A
Withdrawn NCT00837226 - Effects of Weight Loss From Bariatric Surgery on Intraocular Pressure (IOP) N/A
Completed NCT02136589 - Effect of NSAID on Travoprost-induced Conjunctival Hyperemia and IOP Reduction in Normal Eyes Phase 4
Completed NCT03123614 - Loteprednol vs. Prednisolone and Fluorometholone Phase 4
Completed NCT05763056 - Effects of Intubation on Intra-ocular Pressure and Optic Nerve Sheath Diameter N/A
Completed NCT03359200 - Analysis of the Microbiota in Goldmann Applanation Tonometers at a Reference Service in Goiânia N/A
Withdrawn NCT02558309 - Optic Nerve Head Quantification While Reducing Elevated Intracranial Pressure N/A
Completed NCT02816905 - Ocular-hypertensive Response to Topical Steroids in Children After Bilateral Strabismus Surgery Phase 4
Completed NCT01786954 - iCare vs Tonopen vs Goldmann Applanation Post-vitrectomy Surgery N/A
Completed NCT00552019 - Intraocular Pressure (IOP) Assessed by Dynamic Contour Tonometer (DCT) and Goldman Applanation Tonometry (GAT) N/A
Completed NCT00428740 - Long-Term IOP Fluctuation and VF Progression After Triple Procedure N/A
Completed NCT04360369 - Comparison of Intraocular Pressure Measurements Between Reichert Tono-Vera Tonometer and Goldmann Tonometry N/A
Completed NCT04521140 - Assessing eFficacy and Safety of DEXTENZA 0.4 mg inseRt, Following Corneal Transplant Surgery Phase 4
Completed NCT05167773 - Clinical Study of the Topcon Tonometer TRK-3