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Intravitreal Avastin Versus Intravitreal Avastin and Triamcinolone in Central Retinal Vein Occlusion(CRVO)

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified February 2007 by Shahid Beheshti University of Medical Sciences.
Recruitment status was:  Recruiting
Sponsor:
ClinicalTrials.gov Identifier:
NCT00370630
First Posted: September 1, 2006
Last Update Posted: February 21, 2007
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by:
Shahid Beheshti University of Medical Sciences
  Purpose
In this study we intend to evaluate and compare the outcomes of intravitreal avastin versus avastin and triamcinolone on improving the visual acuity and macular edema and late complications of CRVO like NVI and NVG.

Condition Intervention Phase
Retinovascular Disease Drug: Avastin (Bevacizumab) and triamcinolone Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single
Primary Purpose: Treatment

Resource links provided by NLM:


Further study details as provided by Shahid Beheshti University of Medical Sciences:

Primary Outcome Measures:
  • Best corrected visual acuity
  • Macular thickness by OCT

Secondary Outcome Measures:
  • Incidence of NVI

Estimated Enrollment: 15
Study Start Date: August 2006
Estimated Study Completion Date: February 2007
Detailed Description:
Central retinal vein occlusion (CRVO) is a common retinal vascular disorder with potentially complications like reduced vision resulting from extensive intraretinal hemorrhage, retinal ischemia and persistent macular edema and neovascular glaucoma secondary to iris neovascularization. Macular edema is a common cause of severe visual loss in both branch retinal vein occlusion (BRVO) and central retinal vein occlusion (CRVO). Natural history data indicate that CRVO patients presenting with poor visual acuity (_20/200) have an 80% chance of being left with visual acuity less than 20/200 at final visit, whether the CRVO is ischemic or nonischemic at presentation. Treatments that target the secondary effects of venous occlusion, such as grid laser photocoagulation for macular edema and prophylactic panretinal laser photocoagulation for nonperfused CRVO, were shown to be ineffective in improving visual acuity in the Central Vein Occlusion Study (CVOS). Although panretinal photocoagulation is advocated for reducing the risk of neovascular glaucoma in patients with ischemic CRVO, recent clinical trials have failed to demonstrate any significant benefit with laser photocoagulation in the treatment of macular edema due to CRVO. A number of other treatment options are sometimes used in cases of CRVO, such as oral corticosteroids, intravitreal steroids, vitrectomy, hemodilution, intravitreal tissue plasminogen activator, hyperbaric oxygen, and laser or surgical chorioretinal anastomosis. Studies demonstrating the effectiveness of these treatments are inconclusive, although some benefits have been suggested in recent reports. In recent studies the benefit of antiVEGF agents in improving the macular edema due to CRVO have been shown. In this study we are going to compare the effect of intravitreal antiVEGF (Avastin) with combination of Avastin and Triamcinolon in improving the visual acuity and macular thickness in patients with recent (Less than 6 months) CRVO.
  Eligibility

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Ages Eligible for Study:   40 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • CRVO with duration less than 6 months

Exclusion Criteria:

  • vision less than 20/320 and vison more than 20/50
  • history of galucoma and diabetic retinopathy
  • previous laser or intravitreal treatment
  • any media opacity that prevents funduscopy
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00370630


Contacts
Contact: Siamak Moradian, MD +98 21 22585952 labbafi@hotmail.com

Locations
Iran, Islamic Republic of
Siamak Moradian, MD Recruiting
Tehran, Iran, Islamic Republic of, 16666
Contact: Siamak Moradian, MD    +98 21 22585952    labbafi@hotmail.com   
Sponsors and Collaborators
Shahid Beheshti University of Medical Sciences
Investigators
Principal Investigator: Siamak Moradian, MD Ophthalmic Research Center of Shaheed Beheshti Medical University
  More Information

ClinicalTrials.gov Identifier: NCT00370630     History of Changes
Other Study ID Numbers: 8544
First Submitted: August 31, 2006
First Posted: September 1, 2006
Last Update Posted: February 21, 2007
Last Verified: February 2007

Keywords provided by Shahid Beheshti University of Medical Sciences:
CRVO
Intravitreal Avastin
Intravitreal triamcinolone

Additional relevant MeSH terms:
Retinal Vein Occlusion
Retinal Diseases
Eye Diseases
Venous Thrombosis
Thrombosis
Embolism and Thrombosis
Vascular Diseases
Cardiovascular Diseases
Bevacizumab
Triamcinolone hexacetonide
Triamcinolone
Triamcinolone Acetonide
Triamcinolone diacetate
Angiogenesis Inhibitors
Angiogenesis Modulating Agents
Growth Substances
Physiological Effects of Drugs
Growth Inhibitors
Antineoplastic Agents
Anti-Inflammatory Agents
Glucocorticoids
Hormones
Hormones, Hormone Substitutes, and Hormone Antagonists
Immunosuppressive Agents
Immunologic Factors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action


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