High-Dose Lucentis (Ranibizumab 2.0mg) for the Treatment of Nonproliferative Idiopathic Parafoveal Telangiectasia — HD-LIPT  

Retinal Diseases Clinical Trial

Official title: High-Dose Lucentis (Ranibizumab 2.0mg) for the Treatment of Nonproliferative Idiopathic Parafoveal Telangiectasia [HD-LIPT]

Status Completed

Clinical Trial Summary

Idiopathic Parafoveal Telangiectasia (IPT) [also known as Idiopathic Perifoveal Telangiectasia, Idiopathic Juxtafoveal Telangiectasia (IJT, JFT) and Macular Telangiectasia (MacTel)] is a disorder of unknown etiology. IPT is classified as Group 2A in the Gass classification of macular telangiectasias (Reference 1,5) - a bilateral, but not always symmetric disorder. It is characterized in its early stages by dilation and loss of parafoveal capillaries accompanied by angiographic leakage, "right angle" venules, central and parafoveal intraretinal cysts.

Clinical Trial Description

DESCRIPTION OF THE STUDY

This is an open-label, Phase I/II study of intravitreally administered ranibizumab in subjects with nonproliferative Idiopathic Parafoveal Telangiectasia (IPT).

Consented, enrolled subjects will be randomized into two groups: observation and treatment. The observation group will be monitored monthly while the treatment group will receive three open-label intravitreal injections of 1.0 mg ranibizumab administered every 30 days for 3 months and then as needed monthly, based on defined criteria. NOTE: The original protocol had the treatment group dosed at 2.0 mg/0.05mL. However, the 2.0mg dose will become unavailable beginning January 31, 2012. Therefore, the protocol amendment submitted in December 2011 changed the 2.0mg arm to a 1.0mg/ 0.10mL arm. Please note that three patients were already treated with 2.0mg before the amendment was submitted, so they will be switched to 1.0mg if they have not completed the study when the 2.0 dose is no longer available in January 2012.

Protocol: FVF4875s Final 6/P

29MAR2010

3.2

RATIONALE FOR STUDY DESIGN

As IPT is a chronically progressive condition, the purpose of this study is to see if high-dose ranibizumab can slow or stop the leakage and growth of existing, dilated, macular vessels in cases where no co-existing neovascularization exists as defined by fluorescein angiography and Ocular Coherence Tomography (OCT). Other outcomes include stabilization of visual acuity compared to observation group (defined by best corrected Early Treatment Diabetic Retinopathy Study (ETDRS) measurements), and changes in ultrastructural features, as defined by OCT,

3.3

OUTCOME MEASURES

3.3.1 Primary Outcome Measures

To compare the change in visual acuity from baseline to one year in patients with nonproliferative IPT who are either treated with high-dose (1.0mg) ranibizumab or observed.

3.3.2 Secondary Outcome Measures

i. To compare the change in visual acuity from baseline to 6 months and 9 months in patients with nonproliferative IPT who are either treated with high- dose (1.0mg) ranibizumab or observed.

ii. To assess OCT changes in standard Central Subfield Thickness (CST) from baseline to 6 months, 9 months and 12 months.

iii. To assess safety of administering 1.0mg ranibizumab (Lucentis) in patients with nonproliferative IPT at 6 months, 9 months and 12 months.

iv. To assess changes in angiographic leakage from baseline at 6 and 12 months. ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

• Retinal Diseases
• Telangiectasis

• NCT number: NCT01205035
• Study type: Interventional
• Source: Eye Center of Northern Colorado, P.C.
• Status: Completed
• Phase: Phase 2
• Start date: October 2010
• Completion date: October 2012