CClinicalTrials.gg
Status unknownNCT00800423Updated Dec 2, 2008

Effect of Topical Brimonidine on Post Cataract Surgery Corneal Edema

A Phase 3 interventional study of Brimonidine Tartrate 0.2% and Timolol maleate 0.5% in Corneal Edema and Visual Acuity, sponsored by Rabin Medical Center. Status unknown at 1 site in Israel. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2008-12-02.

Sponsored by Rabin Medical Center · Phase 3, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Nov 2008), so the status shown — last known as Not yet recruiting — may be out of date.
Phase
Phase 3
Study type
Interventional
Enrollment
150
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Most patients undergoing cataract surgery suffer from corneal edema after the surgery.

Brimonidine drops are a well known and safe Anti-glaucoma medication. the investigators have made several clinical observations that patients receiving Brimonidine drops had a faster resolution of their corneal edema even if they had normal intra-ocular pressure.

The investigators believe that administering topical Brimonidine to patients with significant post operative corneal edema will hasten the resolution of their corneal edema.

Read the detailed description

Most patients undergoing cataract surgery suffer from corneal edema after the surgery which temporarily reduces their visual acuity until corneal edema resolves over several weeks Brimonidine drops are a well known and safe Anti-glaucoma medication, used to lower intra ocular pressure.

there have been several clinical observations that patients receiving Brimonidine drops had a faster resolution of their corneal edema even in the presence of normal intra-ocular pressure.

The investigators postulated that administering topical Brimonidine to patients with significant post operative corneal edema will hasten their recovery and visual improvement.

In order to prove that Brimonidine drops contribute to faster resolution of cornel edema and visual improvement, the study will randomly compare 50 post cataract surgery patients (group A)who will be administered Brimonidine to 2 control groups (50 people in each group):

group B will be given topical timolol drops 0.5% (another well recognized anti glaucoma medication which reduces intra-ocular pressure by different mechanism than Brimonidine.

Group C will not be given any test drug. All 3 groups will receive the regular post operative medications which include corticosteroids and antibiotics.

02

Conditions studied

  • Corneal Edema
  • Visual Acuity

Keywords

  • corneal edema
  • postoperative corneal edema
  • central corneal thickness
  • visual acuity
  • postoperative
  • brimonidine
  • timolol
  • cataract surgery
03

In context

Cataract

1,701 studies on the registry are indexed under Cataract; 230 are open to participants now.

This study's planned enrollment of 150 is above the median of 80 across 1,155 interventional studies indexed under Cataract.

Browse Cataract studies →

Lead sponsor

Rabin Medical Center is the lead sponsor of 385 studies on the registry; 30 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • 1 day after uneventful cataract surgery
  • corneal edema (grade 2 to 3)

Exclusion criteria

Exclusion Criteria:

  • glaucoma
  • higher than normal intraocular pressure (>23 mm Hg)
  • known sensitivity or contra indication to brimonidine
  • known sensitivity or contra indication to timolol
  • pre operative corneal or anterior segment disease
  • intraoperative complications
  • major ocular pathology other than corneal that reduced vision (retinal degeneration, optic neuropathy etc.)
  • pregnant women
  • children
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
150 participants (estimated)

Study arms

  • Experimental
    brimonidine

    50 patients receiving Brimonidine Tartrate drops in the operated eye: 1 drop X2 a day for 1 month. they will also be administered the usual medications after cataract surgery (corticosteroids and antibiotics drops)

    Drug: Brimonidine Tartrate 0.2%

  • Active comparator
    2 tmolol

    50 patients receiving timolol maleate 0.5% drops in the operated eye 1 drop X2 a day for 1 month. they will also be administered the usual medications after cataract surgery (corticosteroids and antibiotics drops)

    Drug: Timolol maleate 0.5%

  • No intervention
    3

    50 patients will not receive any additional drug to the usual medications after cataract surgery (corticosteroids and antibiotics drops)

Interventions

  • DrugBrimonidine Tartrate 0.2%

    Brimonidine Tartrate 0.2% drops 1 drop twice a day for 1 month in the operated eye

    Also known as: ALPHAGAN P

  • DrugTimolol maleate 0.5%

    timolol maleate 0.5% drops 1 drop twice a day for 1 month in the operated eye

    Also known as: TILOPTIC, V-OPTIC

06

What researchers measure

Primary outcomes

  1. central corneal thickness in micrometer

    Time frame: day 0 (day of enrollment ), day 7, day 30

Secondary outcomes

  1. grading of corneal edema (1-3)

    Time frame: day 0 (day of enrollment), day 7, day 30

07

Study locations

1 site
  • Rabin medical center ophthalmology deparment
    Petah-Tikva, 49100, Israel
    • Weinberger Dov, MD · Contact · dwin@clalit.org.il · 9729376101
    • Omer bialer, MD · Contact · omerb@clalit.org.il · 9729377171
    • omer y bialer, MD · Sub investigator
    • Anat Robinson, MD · Principal investigator
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 2, 2008, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00800423
Lead sponsor
Rabin Medical Center
First posted
Dec 2, 2008
Start date
Jan 2009
Primary completion
Jan 2010 (estimated)
Completion
Jan 2010 (estimated)
Last update
Dec 2, 2008

Study contacts

Anat Robinson, MD
Contact
robina@clalit.org.il
9729377176
Omer Y Bialer, MD
Contact
omerb@clalit.org.il
9729377171
Anat Robinson, MD
principal investigator · Rabin medical center, Clalit health services , Israel

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Nov 2008. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion