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Active, Not Recruiting

NCT Number: NCT05610319

Treat & Extend Versus Fixed Dosing With Faricimab for Management of Diabetic Macular Edema: A Pragmatic, Multi-center, Open-label, Randomized, Controlled Trial

This study will assess a pragmatic, treat and extend regimen of faricimab against the standard of a fixed dosing regimen.

Active, Not Recruiting

This study is active but is not currently recruiting participants.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Primary location

Eye Clinic Albury Wodonga, Albury, New South Wales, Australia

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age ≥ 18 years
  • Diagnosis of diabetes mellitus (type 1 or type 2).
  • Macular thickening secondary to DME (CI-DME) involving the center of the fovea on Optical Coherence Tomography - Central subfield thickness (CST) ≥ 325 μm on Spectralis at screening.***
  • Visual impairment due to DME, with best corrected visual acuity of 80 to 20 letters (Snellen VA 20/25 - 20/400).
  • Media clarity, pupillary dilation, and individual cooperation sufficient for adequate OCT and fundus photographs.
  • Hemoglobin A1c must be <10% within 2 months prior to 1st study treatment.
  • Provide signed informed consent.

Exclusion criteria

  • Active or history of ocular inflammation or suspected/active ocular infection in either eye.
  • High-risk proliferative diabetic retinopathy in the study eye.**
  • Tractional retinal detachment, preretinal fibrosis or visually significant epiretinal membrane involving the macula.
  • Uncontrolled glaucoma (intraocular pressure >30 with or without medications).
  • Any intravitreal, periocular or implant corticosteroids within 26 weeks (6 months) before day 1 or any use of Iluvien implants.
  • Treatment with Panretinal photocoagulation (PRP) within 12 weeks before day 1.
  • Treatment with macular laser.
  • Any cataract surgery or any other intraocular surgery within 12 weeks before day 1.
  • Macular edema in study eye due to a cause other than DME.
  • If clinical exam and/or OCT and/or wide-field fluorescein angiography (WF-FA) suggest that (a) macular edema is considered to be related to ocular surgery such as cataract extraction or (b) if primary cause for macular edema is vitreoretinal interface abnormalities (e.g. a taut posterior hyaloid or epiretinal membrane).
  • Any ocular condition is present such that visual acuity loss would not improve from resolution of macular edema in opinion of the investigator (e.g. foveal atrophy, pigment abnormalities, dense subfoveal hard exudates, nonretinal condition)
  • Any history of ocular conditions that might affect macular edema (e.g. vein occlusion, idiopathic or infectious or non-infectious uveitis, ocular inflammatory disease, neovascular glaucoma etc.)
  • Women of child-bearing potential who are lactating, pregnant, or intending to become pregnant within the next 100 weeks.
  • Current or anticipated incarceration.
  • Terminal illness with expected survival less than 100 weeks.
  • Known hypersensitivity to faricimab or any of the excipients in the faricimab injection.
  • Currently enrolled in a study that does not permit co-enrollment.
  • Unable to obtain informed consent due to language or other operational barriers.
  • Anticipated problems, in the judgment of the site investigator, maintaining compliance with the protocol, including attending study visits, completing assessments or procedures.
  • Prior enrollment in this trial.
  • Other reason to exclude the patient, as approved by the sponsor and site investigator.
  • Previous treatment with anti-VEGF and:
  • <12 weeks prior to day 1 (washout period).*or,
  • Diagnosis of DME is > 2 years of enrollment or,
  • Do not have a demonstrated response to anti-VEGF treatment based on clinical discretion.

Treatment and study plan

Faricimab

Drug

Faricimab will be administered via intravitreal injection.

Primary outcomes

  1. Change in Best Corrected Visual Acuity

    Time frame: Baseline to Week 100

    Change in best corrected visual acuity (3.9 letter non-inferiority margin)

Secondary outcomes

  1. Decrease in Diabetic Retinopathy Severity Score

    Time frame: Baseline to Week 100

    A 2-step improvement in diabetic retinopathy severity score

  2. Decrease in Diabetic Retinopathy Severity Score

    Time frame: Baseline to Week 100

    A 3-step improvement in diabetic retinopathy severity score

  3. Change in Central Subfield Thickness

    Time frame: Baseline to Week 100

    Change in central subfield thickness on OCT

  4. Change in Vision Related Quality of Life

    Time frame: Baseline to Week 100

    Change in vision-related quality of life (VFQ-25)

  5. Change in Letters of Vision

    Time frame: Baseline to Week 100

    Gaining or losing ≥5, ≥10, or ≥15 letters of vision

  6. Absence of Diabetic Macular Edema

    Time frame: Week 100

    Absence of diabetic macular edema in the study eye

  7. Absence of Intraretinal Fluid (IRF)

    Time frame: Week 100

    Absence of intraretinal fluid (IRF) in the study eye

  8. Dosing Interval

    Time frame: Week 100

    Dosing interval at week 100

  9. Presence of Safety Outcomes

    Time frame: Baseline to Week 100

    Safety outcomes (ocular and systemic AEs and SAEs)

Sponsors and collaborators

Lead sponsor

McMaster University

Other

Collaborators

  • Hoffmann-La Roche

Registry information

Acronym: INSITE-DME

Important dates

Study start
2023
Primary completion
2026
Study completion
2026
First posted
Nov 9, 2022
Registry last updated
Apr 17, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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