Use of Bevacizumab to Modulate the Outcomes of Trabeculectomy Surgery

Sponsor
Nova Scotia Health Authority
Study ID
NCT01229202
Phase
PHASE4
Status
Withdrawn

Conditions

Eligibility Criteria

Sex
ALL
Age
30 Years - N/A
Healthy Volunteers
Not accepted

Interventions

  • Bevacizumab — DRUG
    single bevacizumab subtenon injection of 1.25 mg. at end of trabeculectomy surgery

Study Details

Vascular epithelial growth factor (VEGF) plays a critical role in vessel growth and wound healing. Bevacizumab, a non specific VEGF inhibitor, has been successfully used for the treatment of eye diseases associated with neovascularization. The purpose of this randomized study is 1) to investigate the effects of intraoperative subtenon injection of bevacizumab on the outcomes of trabeculectomy surgery. 2) to measure plasma and aqueous levels of VEGF and assess its association with the outcomes of trabeculectomy surgery. Trabeculectomy surgery, where a small drainage canal is created at the front of the eye, is the most common glaucoma surgery performed worldwide. The goal of the surgery is to control intraocular pressure. Failure of this procedure is most commonly caused by excessive scarring of the surgical site. If scarring occurs, the drainage canal can close. By adding Bevacizumab at the time of surgery, wound healing may be slowed and surgical failure prevented. The results of this study will be helpful in the future development of new more effective and safe surgical techniques for treatment of glaucoma. Patients who have given informed consent are randomized into two groups. One group receives standard of care for trabeculectomy surgery and the other group receives standard of care plus an injection of Bevacizumab at the surgery site. Both groups have a one time collection of ocular fluid and a blood sample taken from a vein in the arm. After surgery, patients are seen by their study doctor six times in the following year. At these visits measurements are taken of their visual acuity, eye pressure and blood pressure. The doctor does a clinical exam and at months six and twelve photographs of the patients' eye are taken.

Key Dates

First listed
Oct 27, 2010
Start date
Jul 31, 2008
Status verified
Oct 2022
Primary completion
Dec 31, 2012
Completion
Jan 31, 2016

Study Design

Enrollment
0 participants (actual)
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE

Arms

  • Active Comparator: standard of care
    standard of care for trabeculectomy surgery
  • Active Comparator: bevacizumab arm

Primary Outcome Measure

post surgery IOP (Intra Ocular Pressure Measurement) [ Time Frame: one year post surgery ]

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