Glaucoma
Conditions
Keywords
Intraocular pressure, Trabeculectomy, Mitomycin C, Bevacizumab
Brief summary
The purpose of this study is to investigate the safety and efficacy of bevacizumab as an adjunctive treatment to trabeculectomy in open angle glaucoma patients and to compare this new drug to the most commonly used anti-scarring agent, mitomycin C.
Detailed description
The most common surgical technique for controlling the intraocular pressure in glaucoma patients is trabeculectomy.In this surgery, internal cavity of the eye is connected by a fistula like openings to subconjunctival space. The main cause of failure in trabeculectomy is excessive postoperative conjunctival scarring at the site of fistula, which is related to severity of conjunctival vascularization, tortuousity of vessel, and fibroblast migration and proliferation. At the time of surgery most surgeons use mitomycin C, which is an antimitotic and antifibrotic agent, to improve the results of the procedure. Although this agent is very effective, but is not without complication. The most significant and sight threatening complications are low intraocular pressure and endophthalmitis. Therefore investigations are going on to find a much safer and effective agents. Bevacizumab is a monoclonal antibody against vascular endothelial factor (VEGF). VEGF is an important vasculogenic and fibrogenic factor with a prominent role in wound healing.Bevacizumab is widely used in ophthalmology and has a promising effect in treatment of neovascularization in conjunctiva, cornea and retina. There are limited animal and human case series regarding the effect of this agent in trabeculectomy. In this study the investigators are trying, in addition to evaluating the efficacy and safety of this agent in result of trabeculectomy, compare this agent with mitomycin C.
Interventions
PROCEDURETrabeculectomy
Both groups underwent trabeculectomy ,but in active group bevacizumab was used and in sham group mitomycin c was used during the surgery.
Sponsors
Rassoul Akram Hospital
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No
Inclusion criteria
* Uncontrolled Open angle glaucoma. * Glaucoma patients who are non-compliant to medical treatment. * Progressive glaucoma despite of medical treatment. * Follow-up of at least 6 months after surgery
Exclusion criteria
* History of prior ocular surgery. * Pregnancy or breast feeding. * Age \< 18 years. * History of ocular surface infection in recent two weeks. * History of systemic thrombo-embolic events.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Intraocular pressure. | 7-12 months | Pre and post operative intraocular pressures are measured with Goldmann applanation tonometer at each time point visits and the measurement were compared between both groups. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Number of medications. | 7-12 months | Number of pre and post operative medications were recorded and compared in each post operative visits. |
Countries
Iran
Outcome results
None listed