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CompletedNCT07514559Updated Apr 7, 2026

Comparison of Intravitreal Anti-VEGF Treatment Burden in Different Retinal Diseases

An observational study in Age Related Macular Degeneration (ARMD), Retinal Vein Occlusion (RVO) and Diabetic Macular Edema (DME), sponsored by Hospital Hietzing. Completed at 1 site in Austria. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-04-07.

Sponsored by Hospital Hietzing · Observational

Study type
Observational
Model
Other
Time perspective
Retrospective
Enrollment
393
Ages
18 Years and older
Sex
All
01

Study summary

The study compares the perceived treatment burden in patients undergoing intravitreal anti-VEGF treatment for either wet age related macular degeneration, macular edema after retinal vein occlusions or diabetic macular edema. This study is the first to the investigator's knowledge to compare treatment burden between all three patient groups, which also differ in age and socioeconomic circumstances. The results are of interest to all ophthalmologists who prescribe anti-VEGF treatments, as they show factors which can influence patient adherence und thus the efficacy of said therapies.

02

Conditions studied

  • Age Related Macular Degeneration (ARMD)
  • Retinal Vein Occlusion (RVO)
  • Diabetic Macular Edema (DME)

Keywords

  • Treatment burden
  • ARMD
  • RVO
  • DME
  • anti-VEGF
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In context

Macular Degeneration

1,459 studies on the registry are indexed under Macular Degeneration; 238 are open to participants now.

This study's enrollment of 393 is above the median of 110 across 409 observational studies indexed under Macular Degeneration.

Browse Macular Degeneration 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.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

393 patients (305 with nAMD, 55 with CME and 33 with DME)

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

  • undergone a minimum of 5 IVT's and had visited the retina clinic for at least 6 months

Exclusion criteria

Exclusion Criteria:

  • eye surgery in the preceding six months
  • notable cognitive impairment, such as dementia
  • age \<18 years
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Study design

Observational model
Other
Time perspective
Retrospective
Enrollment
393 participants (actual)
Patient registry
No

Groups and cohorts

  • AMD

    Patients with AMD receiving anti-VEGF treatment

  • DME

    Patients with DME receiving anti-VEGF treatment

  • RVO

    Patients with RVO receiving anti-VEGF treatment

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What researchers measure

Primary outcomes

  1. Severitiy of subjective treatment burden due to intravitreal anti-VEGF therapy assessed by questionnaire

    The questionnaire was designed on the basis of the Longitudinal assessment of Adherence Factors to Intravitreal (anti-VEGF) Therapy (LAF-IVT) questionnaire. Patients were interviewed about their perceived treatment burden, their socioeconomic status, and demographic details. Different aspects of treatment burden were graden by the patients as "no", "little", "moderate", "great" or "extreme buden".

    Time frame: From May 2023 to April 2024

07

Study locations

1 site
  • Hietzing Hospital
    Vienna, 1130, Austria
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from May 2023 to primary completion in Apr 2024, 11 months.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 26, 2026
First posted
Apr 7, 2026
StartActual
May 1, 2023
Primary completionActual
Apr 30, 2024
CompletionActual
Apr 30, 2024
Last update
Apr 7, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 7, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07514559
Lead sponsor
Hospital Hietzing
Collaborators
Scientific fund of the City of Vienna
Responsible party
Prof. Dr. Pia Vécsei-Marlovits (Head of Departement of Ophthalmology, Hospital Hietzing) — Principal investigator
First posted
Apr 7, 2026
Start date
May 1, 2023
Primary completion
Apr 30, 2024
Completion
Apr 30, 2024
Last update
Apr 7, 2026

Oversight

Data monitoring committee
No
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 Apr 2026. You cannot join it, but the record below documents what was studied.

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