NCT03629210

Brief Summary

COLLIDE is a multi-center, open-label, 1:1 randomized study looking at the effects of aflibercept (AFL; 2.0mg) plus OZURDEX (DEX; 0.7mg) implant combination therapy versus DEX monotherapy in phakic or pseudophakic eyes with center-involved DME that have demonstrated prior incomplete response to 3-6 anti-VEGF treatment in 3-9 months. The primary outcome will be 24 week central subfield thickness. Secondary outcomes include the change in ETDRS BCVA letters, number of re-injections and re-injection interval, proportion of eyes with 15- and 10- ETDRS letter gained/lost, proportion of eyes with PDR as per Optos color and FA at the study completion (24+/- 2 weeks) and OCT and OCT angiography biomarkers.

Trial Health

15
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Timeline
Completed

Started Sep 2019

Status
withdrawn

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 9, 2018

Completed
5 days until next milestone

First Posted

Study publicly available on registry

August 14, 2018

Completed
1 year until next milestone

Study Start

First participant enrolled

September 1, 2019

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2021

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2021

Completed
Last Updated

November 13, 2019

Status Verified

November 1, 2019

Enrollment Period

1.4 years

First QC Date

August 9, 2018

Last Update Submit

November 11, 2019

Conditions

Outcome Measures

Primary Outcomes (1)

  • Central Subfield Thickness

    Foveal central subfield (FCS) thickness is defined as the average thickness in the central 1mm diameter circle of the ETDRS grid.

    At 24 Weeks

Secondary Outcomes (5)

  • ETDRS BCVA letters

    From Baseline to 24 Weeks

  • Number of re-injections

    At 24 Weeks

  • Proportion of eyes with 15- and 10-ETDRS letters gained/lost at study completion

    24 Weeks

  • Proportion of study eyes with PDR as per Optos color and FA at the study completion

    24 Weeks

  • Ocular Coherence Tomography

    24 Weeks

Study Arms (2)

Combination Treatment

EXPERIMENTAL

Combination treatment: Participants will receive intravitreal Eylea (AFL, 2.0 mg) injection and OZURDEX implant (0.7 mg) injection within 0 to 8 days of each other.

Drug: OZURDEXBiological: Eylea

Monotherapy

ACTIVE COMPARATOR

Monotherapy treatment: Participants will receive OZURDEX implant (0.7 mg) injection.

Drug: OZURDEX

Interventions

OZURDEX® (DEX implant, 0.7 mg) is a micro-ionized and non-preserved dexamethasone within a cylindrically-shaped 0.45 mm diameter x 6.5 mm length biodegradable Poly D, L-lactate-co-glycolic acid pellet allowing for sustained delivery dexamethasone into the vitreous cavity and retina following intravitreal injection. Health Canada has granted approval for use of DEX implant in the treatment of ME following central retinal vein occlusion, non-infectious uveitis affecting the posterior segment and pseudophakic DME in adult patients. (OZURDEX® Canadian Product Monograph, April 14, 2015). DEX implant will be provided as investigational treatment by Allergan Inc., Markham, ON, Canada.

Also known as: DEX, dexamethasone
Combination TreatmentMonotherapy
EyleaBIOLOGICAL

EYLEA® (AFL 2.0 mg intravitreal injections) is an anti-VEGF treatment. AFL (2.0 mg) has received approval from Health Canada for the treatment of DME. Health Canada has also granted approval for AFL (2.0 mg) in the treatment of age-related macular degeneration, and ME secondary to retinal vein occlusion.

Combination Treatment

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Type 1 or 2 diabetic adult (≥18 years) patients
  • Known glycosylated haemoglobin (HbA1c) levels ≤ 11%
  • Screening Snellen Va / Baseline ETDRS BCVA between 20/20 - 20/320
  • Lens status: Phakic without significant cataract; \<1+ nuclear sclerosis and \<1+ posterior subcapsular or pseudophakic with intact posterior lens capsule and / or Nd:YAG laser capsulotomy that in the investigator's opinion is not likely to permit dislocation of DEX implant into the anterior chamber
  • Center-involved DME \> 250 µm
  • Duration of DME ≤ 2 years
  • Eyes with intraocular pressure (IOP) ≤ 21 with or without treatment with \< 2 topical IOP-lowering medications
  • Eyes with history of previous angle closure that have been successfully treated with either laser or surgical intervention are allowed as long as the visual fields and optic nerves have been stable for \> 1 year prior to study entry
  • Demonstrated incomplete response to 3-6 prior intravitreal anti-VEGFs (AVASTIN®, LUCENTIS®, or EYLEA®; administered every 4 ± 2 weeks over 12-36 weeks (or 3-9 months)); incomplete response is defined herein as a treatment effect resulting in:
  • \< 25% reduction in central subfield thickness (CST) by SD-OCT during two recent visits OR
  • \< 10-letter (2 lines) increase in visual acuity compared to the baseline first anti-VEGF injection
  • If both eyes qualify, investigators can enrol the eye that has developed DME most recently.
  • Written informed patient consent

You may not qualify if:

  • Prior panretinal or macular laser treatments
  • Any Intravitreal injection prior to run-in phase
  • Previous vitrectomy
  • Any ocular condition that in the opinion of the investigator would not permit improvement of visual acuity with resolution of ME (e.g., epiretinal membrane, foveal atrophy, known macular ischemia, pigment abnormalities, dense subfoveal hard exudates and/or poor foveal architecture suggestive of photoreceptor loss)
  • Patients with retinal diseases, other than diabetes that can affect ME
  • HbA1c levels \> 11%
  • Patient has suffered from a stroke in the last 3 months
  • Eyes with a history of advanced glaucoma (optic nerve head change consistent with glaucoma damage and / or glaucomatous visual field loss), uncontrolled ocular hypertension (baseline IOP \> 21 mmHg despite use of ≥ 2 topical IOP-lowering medication)
  • Eyes with a history of steroid response (i.e., increase of ≥ 5 mmHg IOP following topical steroid treatment)
  • Patients with ACIOL (Anterior Chamber Intraocular Lens) or rupture of the posterior lens capsule that in the investigator's opinion is likely to permit dislocation of DEX implant into the anterior chamber
  • Female patients who are pregnant or breast feeding: all women of child bearing potential (i.e. women who are not surgically sterile or who have had one or more menstrual cycle in the previous 12 months) must have a negative pregnancy test prior to randomization, and must agree to use appropriate measures to avoid pregnancy during the trial period.
  • Patients who are unable to attend scheduled follow-up visits throughout the 24-week study
  • Use of systemic steroid, systemic anti-VEGF or pro-VEGF treatment within 4 months prior to enrolment or anticipated use during the study (these drugs are prohibited from use during the study)
  • Patients with active or suspected ocular or periocular infections including most viral diseases of the cornea and conjunctiva, including active epithelial herpes simplex keratitis (dendritic keratitis), vaccinia, varicella, mycobacterial infections, and fungal diseases.
  • Patients with known hypersensitivity to any components of anti-VEGF or DEX implant
  • +1 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (29)

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    PMID: 16828501BACKGROUND
  • Treatment techniques and clinical guidelines for photocoagulation of diabetic macular edema. Early Treatment Diabetic Retinopathy Study Report Number 2. Early Treatment Diabetic Retinopathy Study Research Group. Ophthalmology. 1987 Jul;94(7):761-74. doi: 10.1016/s0161-6420(87)33527-4.

    PMID: 3658348BACKGROUND
  • Haller JA, Bandello F, Belfort R Jr, Blumenkranz MS, Gillies M, Heier J, Loewenstein A, Yoon YH, Jacques ML, Jiao J, Li XY, Whitcup SM; OZURDEX GENEVA Study Group. Randomized, sham-controlled trial of dexamethasone intravitreal implant in patients with macular edema due to retinal vein occlusion. Ophthalmology. 2010 Jun;117(6):1134-1146.e3. doi: 10.1016/j.ophtha.2010.03.032. Epub 2010 Apr 24.

    PMID: 20417567BACKGROUND
  • Hooper P, Boucher MC, Colleaux K, Cruess A, Greve M, Lam WC, Shortt S, Tourville E. Contemporary management of diabetic retinopathy in Canada: from guidelines to algorithm guidance. Ophthalmologica. 2014;231(1):2-15. doi: 10.1159/000354548. Epub 2013 Nov 12.

    PMID: 24246998BACKGROUND
  • Kiddee W, Trope GE, Sheng L, Beltran-Agullo L, Smith M, Strungaru MH, Baath J, Buys YM. Intraocular pressure monitoring post intravitreal steroids: a systematic review. Surv Ophthalmol. 2013 Jul-Aug;58(4):291-310. doi: 10.1016/j.survophthal.2012.08.003.

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  • Korobelnik JF, Do DV, Schmidt-Erfurth U, Boyer DS, Holz FG, Heier JS, Midena E, Kaiser PK, Terasaki H, Marcus DM, Nguyen QD, Jaffe GJ, Slakter JS, Simader C, Soo Y, Schmelter T, Yancopoulos GD, Stahl N, Vitti R, Berliner AJ, Zeitz O, Metzig C, Brown DM. Intravitreal aflibercept for diabetic macular edema. Ophthalmology. 2014 Nov;121(11):2247-54. doi: 10.1016/j.ophtha.2014.05.006. Epub 2014 Jul 8.

    PMID: 25012934BACKGROUND
  • Lazic R, Lukic M, Boras I, Draca N, Vlasic M, Gabric N, Tomic Z. Treatment of anti-vascular endothelial growth factor-resistant diabetic macular edema with dexamethasone intravitreal implant. Retina. 2014 Apr;34(4):719-24. doi: 10.1097/IAE.0b013e3182a48958.

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MeSH Terms

Interventions

Calcium DobesilateDexamethasoneaflibercept

Intervention Hierarchy (Ancestors)

BenzenesulfonatesBenzene DerivativesHydrocarbons, AromaticHydrocarbons, CyclicHydrocarbonsOrganic ChemicalsArylsulfonatesArylsulfonic AcidsSulfonic AcidsSulfur AcidsSulfur CompoundsPregnadienetriolsPregnadienesPregnanesSteroidsFused-Ring CompoundsPolycyclic CompoundsSteroids, Fluorinated

Study Officials

  • Pradeepa Yoganathan, MD, FRCP(C)

    North Toronto Eye Care

    PRINCIPAL INVESTIGATOR
0

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Eligible participants will be randomized in a 1:1 manner to one of the following groups: * Combination treatment (Group A): 50 participants will receive an intravitreal AFL (2.0 mg) injection and DEX implant (0.7 mg) injection within 0 to 8 days of each other. * Monotherapy treatment (Group B): 50 participants will receive DEX implant (0.7 mg) injection.
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Ophthalmologist

Study Record Dates

First Submitted

August 9, 2018

First Posted

August 14, 2018

Study Start

September 1, 2019

Primary Completion

February 1, 2021

Study Completion

May 1, 2021

Last Updated

November 13, 2019

Record last verified: 2019-11

Data Sharing

IPD Sharing
Will not share