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Austin Retina Associates | Main | Austin, TX

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Fenofibrate for Prevention of DR Worsening (Protocol AF)

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Jaeb Center for Health Research

Status and phase

Enrolling
Phase 3

Conditions

Diabetic Retinopathy

Treatments

Other: Placebo
Drug: Fenofibrate

Study type

Interventional

Funder types

Other
Industry
NIH

Identifiers

NCT04661358
DRCR.net Protocol AF
U10EY014231 (U.S. NIH Grant/Contract)

Details and patient eligibility

About

This randomized trial will evaluate the effect of fenofibrate compared with placebo for prevention of diabetic retinopathy (DR) worsening through 6 years of follow-up in eyes with mild to moderately severe non-proliferative DR (NPDR) and no CI-DME at baseline.

In addition to evaluating efficacy, this study aims to evaluate the feasibility of a model for ophthalmologists to prescribe or collaborate with a primary care provider such as an internist/endocrinologist to prescribe and monitor the drug safely. If this study demonstrates that fenofibrate is effective for reducing the onset of proliferative diabetic retinopathy (PDR) or and the results are adopted by the community of retina specialists, a new strategy to prevent vision threatening complications of diabetes could be widely adopted. Widespread use of an oral agent effective at reducing worsening of DR would decrease the numbers of patients who undergo more invasive and much more expensive treatment for DR and who are consequently at risk for side effects that adversely affect visual function. This study will also assess the relationship of glycemic variability, as measured by continuous glucose monitoring with DR outcomes. Ancillary studies will characterize functional and structural outcomes in this cohort.

Enrollment

560 estimated patients

Sex

All

Ages

18 to 80 years old

Volunteers

No Healthy Volunteers

Inclusion and exclusion criteria

Key Inclusion Criteria

  • Age ≥18 years and < 80 years.

  • Type 1 or type 2 diabetes.

  • At least one eye with the following:

    • Mild to moderately severe NPDR (defined by ETDRS DR severity level 35 to 47), confirmed by central Reading Center grading of fundus photographs.
    • Best-corrected E-ETDRS visual acuity letter score of ≥74 (approximate Snellen equivalent 20/32 or better). If best corrected letter score is 74-78, investigator must verify that vision loss is not due to the presence of CI-DME, cataract, or other condition that may affect visual acuity during the course of the study.
  • If only one eye is eligible, the non-study eye must have at least microaneurysms only (DR severity level 20)

Key Exclusion Criteria

Eye-level exclusion criteria (the eye is ineligible if any of the following is met):

  • Current CI-DME based on clinical exam or OCT central subfield thickness (CST)

    • Zeiss Cirrus: CST ≥290 µm in women or ≥ 305 µm in men
    • Heidelberg Spectralis: CST ≥305 µm in women or ≥320 µm in men
  • Any prior treatment for DME or DR, other than focal/grid laser. If the eye has a history of focal/grid laser, it must be at least 12 months prior.

  • History of intraocular anti-VEGF or corticosteroid treatment within the prior year for any indication

Participant-level exclusion criterion (the participant is ineligible if the following criterion is met):

• Decreased renal function, defined as requiring dialysis or central laboratory eGFR value < 45 mL/min/1.73 m2

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Triple Blind

560 participants in 2 patient groups, including a placebo group

Fenofibrate 160-mg
Experimental group
Treatment:
Drug: Fenofibrate
Placebo
Placebo Comparator group
Treatment:
Other: Placebo

Trial contacts and locations

60

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Central trial contact

Adam R Glassman, MS; Emily Chew, MD

Data sourced from clinicaltrials.gov

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