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CompletedNCT02441907Updated Sep 19, 2019

Predictors of Treatment Response to Aflibercept and Aqueous Cytokine Levels in Diabetic Macular Edema

A Phase 4 interventional study of aflibercept in Diabetic Macular Edema, sponsored by Unity Health Toronto. Completed at 1 site in Canada. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-09-19.

Sponsored by Unity Health Toronto · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
16
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

Diabetic macular edema refers to swelling (fluid accumulation) in the center of the retina. The retina is like the film of a camera and is located in the back of the eye. This condition can develop in diabetics where swelling results from leaking of fluid from the blood vessels of the eye, into the center of the retina, the macula. If left untreated, this can affect central vision. The current standard treatment for diabetic macular edema includes medications injected directly into the eye (intravitreal injections) and laser eye treatment. The drugs that are injected directly into the eye are known as anti-Vascular Endothelial Growth Factor (anti-VEGF) agents which help to reduce the leaking. However, response in patients to these anti-VEGF drugs can vary and examination of predictive factors is required. This particular study examines cellular factors called cytokines in patients receiving aflibercept, a type of anti-VEGF drug, in the hopes of detecting changes in cytokines that can predict treatment response amongst groups of patients.

02

Conditions studied

  • Diabetic Macular Edema

Keywords

  • Diabetic Macular Edema
  • Ocular Cytokines
  • Triamcinolone Acetonide
03

In context

Macular Edema

841 studies on the registry are indexed under Macular Edema; 56 are open to participants now.

This study's enrollment of 16 is below the median of 50 across 619 interventional studies indexed under Macular Edema.

Browse Macular Edema studies →

Lead sponsor

Unity Health Toronto is the lead sponsor of 434 studies on the registry; 76 are open to participants now.

Of its 5 completed or terminated interventional studies of FDA-regulated products, 1 (20%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Male or female aged 18 years or above
  • Presence of Non Proliferative Diabetic Retinopathy (NPDR)
  • Treatment Naïve patients with DME with central macular thickness of 310μm or more on SD-OCT (cirrus)
  • Subjects with Type I or II diabetes mellitis
  • Willing and able to provide informed consent for participation in the study

Exclusion criteria

Exclusion Criteria:

  • Proliferative diabetic retinopathy in the study eye or PRP within the last 12 months or anticipated PRP in the next 6 months
  • Uncontrolled glaucoma
  • History of intraocular surgery within 3 months in the study eye
  • History of vitrectomy surgery
  • Laser treatment within 3 months of study eye
  • Vitreomacular traction, epiretinal membrane or any other maculopathy in the study eye
  • Prior intravitreal injection within the past 6 months
  • Known allergy to the study drug or fluorescein
  • History of stroke or AMI within 6 months of enrollment
  • Patients receiving dialysis for renal failure
  • Patients currently on systemic immunosuppression
  • Patients on two or more class of medication for glaucoma in study eye
  • Patients with tuberculosis
  • Patients who are pregnant.
  • Unwilling or unable to follow or comply with all study related procedures
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Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
16 participants (actual)

Study arms

  • Other
    aflibercept treatment

    aflibercept, 40 mg/mL Solution for Intravitreal Injection

    Drug: aflibercept

Interventions

  • Drugaflibercept

    Also known as: Eylea

06

What researchers measure

Primary outcomes

  1. Change in cytokine levels (picograms per mL) between baseline aflibercept injection and at 1, 2, and 3 months

    Time frame: 3 months

Secondary outcomes

  1. Relation of baseline aqueous cytokine levels to baseline Snellen BCVA in response to aflibercept

    Time frame: 3 months

07

Study locations

1 site
  • St. Michael's Hospital Eye Clinic
    Toronto, Ontario M5C2T2, Canada
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 19, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02441907
Lead sponsor
Unity Health Toronto
Responsible party
Sponsor
First posted
May 12, 2015
Start date
Aug 2015
Primary completion
Aug 2018
Completion
Sep 2019
Last update
Sep 19, 2019

Study contacts

Rajeev Muni, MD
principal investigator · Unity Health Toronto

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Sep 2019. You cannot join it, but the record below documents what was studied.

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