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

The recruitment status of this study is unknown because the information has not been verified recently.
Verified February 2007 by Shahid Beheshti Medical University.
Recruitment status was  Recruiting
Sponsor:
Information provided by:
Shahid Beheshti Medical University
ClinicalTrials.gov Identifier:
NCT00370630
First received: August 31, 2006
Last updated: February 20, 2007
Last verified: February 2007
  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
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Single Blind
Primary Purpose: Treatment

Resource links provided by NLM:


Further study details as provided by Shahid Beheshti Medical University:

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

Ages Eligible for Study:   40 Years and older
Genders Eligible for Study:   Both
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
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: 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 Medical University
Investigators
Principal Investigator: Siamak Moradian, MD Ophthalmic Research Center of Shaheed Beheshti Medical University
  More Information

No publications provided

ClinicalTrials.gov Identifier: NCT00370630     History of Changes
Other Study ID Numbers: 8544
Study First Received: August 31, 2006
Last Updated: February 20, 2007
Health Authority: Iran: Ethics Committee

Keywords provided by Shahid Beheshti Medical University:
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
Triamcinolone hexacetonide
Triamcinolone
Triamcinolone Acetonide
Triamcinolone diacetate
Bevacizumab
Anti-Inflammatory Agents
Therapeutic Uses
Pharmacologic Actions
Glucocorticoids
Hormones
Hormones, Hormone Substitutes, and Hormone Antagonists
Physiological Effects of Drugs
Immunosuppressive Agents
Immunologic Factors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Angiogenesis Inhibitors
Angiogenesis Modulating Agents
Growth Substances
Growth Inhibitors
Antineoplastic Agents

ClinicalTrials.gov processed this record on July 26, 2014