ClinicalTrials.gg
CompletedNCT03590444Updated Jul 18, 2018

Treatment of Diabetic Macular Edema (DME) With Anti-VEGF and Focal Laser

A Phase 4 interventional study of Ranibizumab 0.5 MG/0.05 ML Intraocular Solution in Diabetic Retinal Edema, sponsored by Hospital Hietzing. Completed at 1 site in Austria. Per ClinicalTrials.gov, last updated 2018-07-18.

Sponsored by Hospital Hietzing · Phase 4, Interventional, and Treatment

From the registry’s dates

  • Registered 1 year 2 months after the study started (first participant enrolled Apr 2017, registered Jun 2018).
Phase
Phase 4
Study type
Interventional
Enrollment
50
Allocation
Randomized
Sex
All
01

Study summary

Long-term follow-up of patients with diabetic macular edema (DME) treated with intravitreal anti-vascular endothelial growth factor (anti-VEGF) combined focal laser and identification of prognostic morphological characteristics.

Read the detailed description

Long-term follow-up of patients with diabetic macular edema (DME) treated with intravitreal anti-vascular endothelial growth factor (anti-VEGF) combined focal laser and identification of prognostic morphological characteristics.

Prospective clinical trial (50 treatment-naive eyes) with DME randomized 1:1 receiving intravitreal ranibizumab (0.5 mg/0.05 ml) and prompt grid laser compared to ranibizumab and deferred laser. Morphological characteristics potentially relevant for prognosis were assessed at baseline, month 6, month 9, year 1, 2, 3, 4 and 5 of follow-up.

Grid laser and ranibizumab therapy is expected to be effective in DME management during long-term follow-up. Immediate combined therapy will likely signify a trend of functional superiority in an early disease phase. Intraretinal hyperreflective material in SD-OCT will likely negatively related to BCVA.

02

Conditions studied

  • Diabetic Retinal Edema

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03

In context

Edema

566 studies on the registry are indexed under Edema; 95 are open to participants now.

This study's enrollment of 50 is close to the median of 52 across 401 interventional studies indexed under Edema.

Browse Edema studies →

Lead sponsor

Hospital Hietzing is the lead sponsor of 15 studies on the registry; none are open to participants now.

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

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • DME that will be detected clinically and on FA as well as on SD-OCT [diffuse macular edema with central retinal thickness (CRT) ≥300µm involving the center of the macular area]
  • Patients will be included into the present study following
  • Best-corrected-visual-acuity (BCVA) between 0.06 (1.2logMAR) and 0.63 (0.20logMAR).

Exclusion criteria

Exclusion criteria:

  • Eyes with other retinal diseases [i.e. age-related macular degeneration (AMD) and associated choroidal neovascularization (CNV), cystoid macular edema (CME) of other origin (e.g. uveitis, Irvine-Gass syndrome, retinal vein occlusion), or retinal dystrophies]
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

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05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
50 participants (actual)

Study arms

  • Active comparator
    Prompt laser group

    Eyes of eligible patients will be randomized (ratio 1:1) and receive ranibizumab and focal/grid laser on the same day (prompt' group, 25 eyes, 50%). Interventions: ranibizumab and focal/grid laser on the same day \[Ranibizumab (Ranibizumab 0.5 MG/0.05 ML Intraocular Solution\]

    Drug: Ranibizumab 0.5 MG/0.05 ML Intraocular Solution

  • Active comparator
    Deferred laser group

    Eyes of eligible patients will be randomized (ratio 1:1) and receive ranibizumab and focal/grid laser on one week prior to laser treatment (deferred' group, 25 eyes, 50%). Interventions: ranibizumab and focal/grid laser on one week prior to laser treatment \[Ranibizumab 0.5 MG/0.05 ML Intraocular Solution\]

    Drug: Ranibizumab 0.5 MG/0.05 ML Intraocular Solution

Interventions

  • DrugRanibizumab 0.5 MG/0.05 ML Intraocular Solution

    Drug page: Ranibizumab

    Focal laser treatment will be performed using argon laser photocoagulation (VISULAS 532s®, Carl Zeiss Meditec) operating at 532nm and Ranibizumab 0.5 MG/0.05 ML Intraocular Solution. Ranibizumab 0.5 MG/0.05 ML Intraocular Solution

    Also known as: Focal grid laser

06

What researchers measure

Primary outcomes

  1. Visual acuity

    Functional alterations will be followed during treatment phase, essential for verification of treatment success. Units: Snellen equivalents

    Time frame: 1 year

Secondary outcomes

  1. Additional morphological characteristics in spectral Domain SD-OCT

    Intraretinal morphological features found in SD- OCT Imaging (i.e. intraretinal morphological changes senn on SD-OCT).

    Time frame: 1 year

  2. Central retinal thickness

    Morphological alterations will be followed during treatment phase, essential for verification of treatment success. Units: Micrometer (retinal thickness)

    Time frame: 1 year

07

Study locations

1 site
  • Hietzing Hospital
    VIenna, 1130, Austria
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 18, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03590444
Lead sponsor
Hospital Hietzing
Responsible party
Christopher Schütze, Ass.Prof., MD, PhD (Ass.Prof.MD, PhD, Hospital Hietzing) — Principal investigator
First posted
Jul 18, 2018
Start date
Apr 2, 2017
Primary completion
Apr 2, 2018
Completion
Jun 2, 2018
Last update
Jul 18, 2018

Study contacts

Christopher Schütze, Ass.Prof. MD
principal investigator · Hietzing Hospital Vienna, Austria

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2018. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: Ranibizumab

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