ClinicalTrials.gg
CompletedNCT04891835Updated Mar 8, 2022

Analysis of naïve Patients With Age-related Macular Degeneration of the Neovascular Type and Treated With Aflibercept (Eylea®) in "Treat-and-extend" at CHU Brugmann

An observational study in Age-related Macular Degeneration, sponsored by Laurence Postelmans. Completed at 1 site in Belgium. Open to participants aged 50 Years and older. Per ClinicalTrials.gov, last updated 2022-03-08.

Sponsored by Laurence Postelmans · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
36
Ages
50 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 36 studies in Macular Degeneration with a site in Belgium — 4 open to participants now, 6 under way, 4 of them phase 3. Macular Degeneration · Belgium.

Enrollment
8th of 10
36 · median 122
Started
2021
with 3 others
Observational
10 of 36
1 open now
Registered
29th of 36
by date

Among the 36 studies in Macular Degeneration with a site in Belgium, this one is the 8th largest by enrollment of the 10 observational ones that give a count, is one of 4 that started in 2021, is one of 10 observational ones, and was the 29th registered.

Macular Degeneration

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

Browse Macular Degeneration studies →

Open to participants now

4 of the 36 studies in Macular Degeneration with a site in Belgium are open now. Recruiting first, the newest first:

All 4 open studies →

A study can be open while its sites in Belgium have not opened yet or have stopped. Only those recruiting at a site in Belgium →

Who these studies take

Of the 166 Macular Degeneration studies recruiting now, 117 (70%) set no upper age limit and 5 (3%) stop at 75 or younger; 19 take children under 18; 35 take healthy volunteers.

This study: 50 Years and older · all sexes · no healthy volunteers.

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02

Study summary

Age-related macular degeneration (AMD) is a leading cause of blindness in people over 50. Neovascular AMD, the most serious and severe form, is characterized by the appearance, spread and growth of subretinal new vessels. One of the major molecular mediators is vascular endothelial growth factor (VEGF).

Intra-vitreous (IVI) injection of an anti-VEGF can slow the progression of neovascular AMD and stabilize vision in the majority of cases. Aflibercept (Eylea®) is one of the anti-VEGF molecules approved in Belgium to treat neovascular AMD.

At the start of its use, aflibercept was first injected monthly and then according to the PRN "reactive" protocol (Pro Renata). Over time, a new treatment strategy has emerged: the "treat-and-extend" (T\&E). This is individualized patient care, the objective of which is to reduce the frequency of injections while ensuring inactivity of the disease. This begins with the loading dose, i.e. 3 injections given 4 weeks apart. Thereafter, the interval is lengthened in increments of 1 or 2 weeks provided that the visual and anatomical results remain stable. In the event of deterioration, the interval is shortened while keeping a minimum of 4 weeks between each IVI.

The efficacy and safety of aflibercept, when used in a proactive T\&E regimen, was demonstrated in the randomized controlled trial, ALTAIR. However, data on T\&E used in practice is still lacking. routine, and particularly the number of injections and treatment intervals over a minimum 24 month treatment period.

The aim of this retrospective study carried out at the CHU Brugmann is to determine the number of injections and the intervals necessary to have encouraging results in terms of visual acuity, over a treatment period of at least one year.

03

Conditions studied

  • Age-related Macular Degeneration
04

Who can participate

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

Study population

Patients of the CHU Brugmann Hospital, > 50 years old, diagnosed with neovascular age related macular degeneration, who have never received anti-VEGF treatment, and who started intra-vitreous injections of aflibercept between 01 January 2014 and November 30, 2019.

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

  • Patients> 50 years old diagnosed with neovascular age related macular degeneration,
  • Patients who have never received anti-VEGF treatment,
  • Patients who started intra-vitreous injections of aflibercept between 01 January 2014 and November 30, 2019,
  • Treatment by "treat-and-extend" directly after the loading dose of aflibercept,
  • Availability of the medical file reporting treatment with aflibercept.

Exclusion criteria

Exclusion Criteria:

  • Participation in an interventional clinical study during treatment with aflibercept,
  • Patients with ocular pathologies who required surgery during the first 24 months of treatment with aflibercept (eg advanced glaucoma or cataracts).
05

Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
36 participants (actual)
Patient registry
No

Interventions

  • OtherData extraction from medical files

    Data extraction from medical files

06

What researchers measure

Primary outcomes

  1. Injections number (first 24 months of treatment)

    Number of injections during the first 24 months of treatment

    Time frame: first 24 months of treatment

  2. Injections interval

    Last injection interval during the 2nd year of treatment, in weeks

    Time frame: during the 2nd year of treatment

Secondary outcomes

  1. Injection number (up to 4 years of treatment)

    Number of injections during the 1st, 2nd, 3rd and 4th year of treatment

    Time frame: up to 4 years of treatment

  2. Injections interval (up to 4 years of treatment)

    Last injection interval during the 1st, 2nd, 3rd and 4th year of treatment (if applicable), in weeks

    Time frame: up to 4 years of treatment

  3. Most stable injection interval

    Most stable injection interval during the 2nd, 3rd and 4th year of treatment (if applicable), in weeks

    Time frame: up to 4 years of treatment

  4. Overall extension interval

    Expected overall extension interval: by 1 week, 2 weeks, 3 weeks or 4 weeks

    Time frame: up to 4 years of treatment

  5. Covid 19 impact

    Covid19 impact on the injection interval (visits cancelled due to lock-down, shortening/increase of the injection interval due to hospital internal emergency procedures)

    Time frame: up to 4 years of treatment

  6. Number of follow-up visits

    Number of follow-up visits during each year of treatment up to 4 years

    Time frame: up to 4 years of treatment

  7. Visual acuity

    Visual acuity at baseline, after 90 days and at the end of each year of treatment up to 4 years

    Time frame: up to 4 years of treatment

  8. Age

    Age of the patient at baseline

    Time frame: Baseline

  9. Eye lesion type

    Eye lesion type

    Time frame: Baseline

  10. Fluid

    Presence or absence of intra-retinal fluid, subretinal fluid, detachment of the pigment epithelium at baseline, after 90 days and at the end of each year of treatment up to 4 years

    Time frame: up to 4 years of treatment

  11. Date of first symptoms

    Date of first symptoms of neovascular AMD

    Time frame: Baseline

  12. Date of first injection

    Date of first ranibizumab injection

    Time frame: Baseline

  13. Retinal thickness

    Retinal thickness at baseline, after 90 days and at the end of each year of treatment up to 4 years

    Time frame: up to 4 years of treatment

  14. Treatment regimen

    Has there been a change in treatment regimen after the first 12 months of treatment?

    Time frame: first 12 months of treatment

  15. Number of patients stopping treatment (12-24 months)

    Number of patients stopping treatment between 12 and 24 months of treatment

    Time frame: between 12 and 24 months of treatment

  16. Reason for stopping treatment (12-24 months)

    Reason for stopping treatment between 12 and 24 months of treatment

    Time frame: between 12 and 24 months of treatment

  17. Number of patients stopping treatment (24-36 months)

    Number of patients stopping treatment between 24 and 36 months of treatment

    Time frame: between 24 and 36 months of treatment

  18. Reason for stopping treatment (24-36 months)

    Reason for stopping treatment between 24 and 36 months of treatment

    Time frame: between 24 and 36 months of treatment

  19. Number of patients stopping treatment (36-48 months)

    Number of patients stopping treatment between 36 and 48 months of treatment

    Time frame: between 36 and 48 months of treatment

  20. Reason for stopping treatment (36-48 months)

    Reason for stopping treatment between 36 and 48 months of treatment

    Time frame: between 36 and 48 months of treatment

  21. Number of patients stopping treatment (first 12 months)

    Number of patients who stopped treatment in the first 12 months

    Time frame: first 12 months of treatment

  22. Reason for stopping treatment (first 12 months)

    Reason for stopping treatment in the first 12 months

    Time frame: first 12 months of treatment

07

Study locations

1 site
  • CHU Brugmann
    Brussels, 1020, Belgium
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 Apr 2021 to primary completion in Sep 2021, 5 months.

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

Registered
May 12, 2021
First posted
May 18, 2021
StartActual
Apr 13, 2021
Primary completionActual
Sep 22, 2021
CompletionActual
Sep 22, 2021
Last update
Mar 8, 2022
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 Mar 8, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04891835
Lead sponsor
Laurence Postelmans
Responsible party
Laurence Postelmans (Head of Opthalmology clinic, Brugmann University Hospital) — Sponsor-investigator
First posted
May 18, 2021
Start date
Apr 13, 2021
Primary completion
Sep 22, 2021
Completion
Sep 22, 2021
Last update
Mar 8, 2022

Study contacts

Laurence Postelmans
study director · CHU Brugmann

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 Mar 2022. You cannot join it, but the record below documents what was studied.

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Discussion

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