Intravitreal Aflibercept Injection for Radiation Retinopathy Trial — ARRT  

Radiation Retinopathy Clinical Trial

Official title: Intravitreal Aflibercept Injection (IAI) for Radiation Retinopathy Trial (ARRT)

Status Active, not recruiting

Clinical Trial Summary

The ARRT trial will assess the safety and efficacy of 2mg aflibercept for the treatment of radiation retinopathy, including maculopathy and optic neuropathy over 52 weeks.

Clinical Trial Description

Approximately 40 eyes will be randomized (1:1 ratio) into either Group 1 or Group 2. Slit lamp exam and Indirect ophthalmoscopy will be performed at every study visit, where retinopathy level will be assessed. SD-OCT will be performed at each visit. Fluorescein angiogram will be performed at screen, week 26 and week 52. All other imaging studies will be standard of care at the discretion of the investigator.

This trial will compare the results of 2 groups, with different treatment intervals, to assess the safety of intravitreal Aflibercept injections (IAI) for the treatment of radiation retinopathy. Patients in each group will be followed for a total of 52 weeks.

Group 1: 15 Patients will receive a loading dose of 3 IAI. They will receive 2 mg IAI at screening/baseline, week 4, week 8, and week 12. A follow-up visit will occur at week 12. If the extension criteria are met, the patient will be extended by 2 weeks. The patient will continue to be followed per the treat and extend protocol described below.

Group 2: Patients will not receive a loading dose. They will receive 2 mg IAI at screening/baseline followed by a visit at week 4. At week 4, if the extension criteria are met, the patient will be extended by 2 weeks. The patient will continue to be followed per the treat and extend protocol described below.

Treat & Extend Protocol Patients can be extended as long as they meet the following criteria -

• Absence of retinal fluid (resolution of intraretinal and subretinal fluid on SD-OCT; Small intraretinal cysts that do not distort foveal contour on SD-OCT are acceptable and can be considered "dry".) AND

• Less than 5 ETDRS letter loss from previous visit due to new or persistent retinal edema.

IAI will be rendered at every visit (treatment at the week 26 mandatory visit will be administered based on the treat and extend status), no earlier than 4 days before the target date and no later than 4 days after the target date. Each extension will be 2 weeks in duration beyond the initial 4-week interval. If the extension criteria are not met on a follow-up visit, the treatment interval will be reduced by 2 weeks. Follow up interval will continue to be reduced by 2 weeks until the extension criteria are met or a 4-week interval is reached.

All patients will have a mandatory study visit at Week 52 (final study visit). No study treatment will be administered after week 50 or at a study termination visit. If a patient receives treatment after week 48, they will return 4 weeks after the last clinic visit for the final study visit (instead of at week 52). ;

Related Conditions & MeSH terms

• Radiation Retinopathy
• Retinal Diseases

• NCT number: NCT03085784
• Study type: Interventional
• Source: Greater Houston Retina Research
• Status: Active, not recruiting
• Phase: Phase 2
• Start date: July 5, 2017
• Completion date: October 2021