A considerable hurdle to the development of novel, more effective therapies for diabetic retinal disease is the limited number of primary endpoints available for use in regulatory trials. Current endpoints necessitate long trial durations and a greater number of participants to show efficacy. Thus, a better understanding of the structural and functional changes in the retina occurring in people with diabetes is essential for developing primary endpoints and validating surrogate and clinical endpoints.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
OTHER
Masking
NONE
Enrollment
100
All study eyes will receive an injection of anti-VEGF at baseline, 4, and 8 weeks. The participant will then be assessed for treatment every 8 weeks. At and after the 16-week visit, an injection will only be given if the eye has center-involved DME or visual acuity worse than 20/20 (presumed to be due to DME). Otherwise, an injection will not be given. The follow-up interval remains 8 weeks regardless of whether an injection is given or deferred. However, if an injection is deferred and the participant experiences vision issues or other symptoms, they may return for evaluation prior to 8 weeks (e.g., in 4 weeks) and can receive an injection (provided it has been at least 21 days since the last injection).
Southeast Retina Center, P.C.
Augusta, Georgia, United States
RECRUITINGBoston Medical Center Corporation
Boston, Massachusetts, United States
RECRUITINGHenry Ford Health System
Detroit, Michigan, United States
RECRUITINGMayo Clinic
Rochester, Minnesota, United States
RECRUITINGRetina-Vitreous Consultants, Inc.
Monroeville, Pennsylvania, United States
RECRUITINGPittsburgh Clinical Trial Consortium
Sewickley, Pennsylvania, United States
RECRUITINGChange in multifocal pupillographic objective perimetry (mfPOP) response delays
mfPOP response delays measured using the Objective Field Analyzer (OFA)
Time frame: Baseline to 1 year
Change in area under the log contrast sensitivity function (AULCSF)
AULCSF as measured by the Adaptive Sensory Testing (AST) Manifold contrast sensitivity testing system
Time frame: Baseline to 1 year
Change in electroretinography parameter
Measured by the RETeval device
Time frame: Baseline to 1 year
Change in reading performance
Measured by the MNREAD test
Time frame: Baseline to 1 year
Change in visual field function
Measured by Humphrey Visual Field testing
Time frame: Baseline to 1 year
Change in diabetic retinopathy severity
Assessed by ultra-widefield (UWF) color fundus photography
Time frame: Baseline to 1 year
Change in retinal vascular pathology
Assessed by ultra-widefield fluorescein angiography (UWF-FA)
Time frame: Baseline to 1 year
Change in retinal structure
measured by optical coherence tomography (OCT)
Time frame: Baseline to 1 year
Change in retinal microvascular parameter
Measured by optical coherence tomography angiography (OCTA)
Time frame: Baseline to 1 year
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