NCT01280929

Prospective, Randomized, Multicenter, Open Label, Phase II Study to Access Efficacy and Safety of Lucentis® Monotherapy Compared With Lucentis® Plus Panretinal Photocoagulation (PRP) and PRP in the Treatment of Patients With High Risk Proliferative Diabetic Retinopathy

Prospective, Randomized, Multicenter, Open Label, Phase II Study to Access Efficacy and Safety of Lucentis® Monotherapy (Ranibizumab 0.5 mg Intravitreal Injections) Compared With Lucentis® Plus Panretinal Photocoagulation (PRP) and PRP (Monotherapy) in the Treatment of Patients With High Risk Proliferative Diabetic Retinopathy

• Status: Completed
• Phase: Phase 2
• Study type: Interventional
• Enrollment: 54 (actual)
• Sponsor: José Cunha-Vaz · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

The purpose of this trial is to evaluate safety and to compare the efficacy of intravitreous injection of ranibizumab alone (0.5 mg), versus combination of intravitreous injection of ranibizumab (0.5 mg) plus panretinal photocoagulation, versus panretinal photocoagulation alone in the regression of retinal neovascularization in eyes with high-risk proliferative diabetic retinopathy.

Detailed description

Panretinal photocoagulation can cause regression of retinal neovascularization and reduce the risk of severe vision loss in people with proliferative diabetic retinopathy. However, this destructive treatment may be associated with side effects (such as: pain, transient blurring, loss of peripheral and/or night vision, increased risk of macular edema and central vision loss) and it is not always efficient in the regression of the neovascularization. Vascular endothelial growth factor (VEGF) has been shown to play a role in retinal neovascularization and retinal vascular leakage related with proliferative diabetic retinopathy and diabetic macular edema. Anti-vascular endothelial growth factor treatments have been hypothesized as an alternative adjunctive treatment for the management of retinal neovascularization and macular edema related with diabetic retinopathy. There are a few reports of retinal traction detachment in patients with proliferative diabetic retinopathy and fibrovascular proliferation (although it is not frequent). However, from our clinical experience, we think that the risk of detachment only exists when there is in place a fibrovascular proliferation with retinal traction previous to the injection. We injected ranibizumab prior to surgery in patients with severe proliferative diabetic retinopathy, that were submitted later to a posterior vitrectomy, to reduce neovascularization and minimize the risk of an intraoperatory hemorrhage caused by the manipulation of the fibrovascular membranes. In total, we already injected and submitted to surgery 15 eyes with the above mentioned condition, with excellent results. The results of the first 10 eyes were presented in the congress of the Portuguese Society of Ophthalmology (2008).

Conditions

• High Risk Proliferative Diabetic Retinopathy

Interventions

Type	Name	Description
PROCEDURE	Panretinal Photocoagulation (PRP)
DRUG	Intravitreous injection of ranibizumab

Timeline

• Start date: 2010-09-01
• Primary completion: 2013-12-01
• Completion: 2013-12-01
• First posted: 2011-01-21
• Last updated: 2015-10-08

Locations

7 sites across 1 country: Portugal