NCT04988178

Brief Summary

Age-related macular degeneration (AMD) is a leading cause of blindness in people over 50 years old. Neovascular AMD, the most severe form and the most severe is characterized by the appearance, spread and growth of subretinal neovessels. One of the major molecular mediators is the endothelial growth factor vascular (VEGF). Intra-vitreous (IVI) injection of an anti-VEGF may slow the progression of Neovascular AMD and stabilize vision in the majority of cases. Ranibizumab (Lucentis®) is one of the anti-VEGF molecules approved in Belgium to treat neovascular AMD. At the start of its use, ranibizumab was first injected monthly and then according to the "reactive" protocol. Over time, a new strategy of treatment was born: the "treat-and-extend" (T\&E). This is 'made to measure' protocol for each patient aiming to reduce the frequency of injections while guaranteeing inactivity of the disease. It starts with the loading dose, i.e. 3 injections given 4 weeks apart. Subsequently, the interval is lengthened by slices 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 IIV. The efficacy and safety of ranibizumab, when used in a proactive regimen of T\&E, has been shown in the CANTREAT randomized controlled trial. However, there is a lack of more data on T\&E used in current practice, and particularly on the number of injections and treatment intervals over a minimum treatment period of 24 months. The aim of this retrospective study carried out at the CHU Brugmann Hospital is to determine the number of injections and the intervals necessary to have encouraging results in visual acuity over a treatment period of at least two years.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
34

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Apr 2021

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 13, 2021

Completed
27 days until next milestone

First Submitted

Initial submission to the registry

May 10, 2021

Completed
3 months until next milestone

First Posted

Study publicly available on registry

August 3, 2021

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 22, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 22, 2021

Completed
Last Updated

March 21, 2022

Status Verified

March 1, 2022

Enrollment Period

5 months

First QC Date

May 10, 2021

Last Update Submit

March 7, 2022

Conditions

Outcome Measures

Primary Outcomes (2)

  • Injections number (first 24 months of treatment)

    Number of injections during the first 24 months of treatment

    first 24 months of treatment

  • Injections interval

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

    during the 2nd year of treatment

Secondary Outcomes (24)

  • Injection number (up to 4 years of treatment)

    up to 4 years of treatment

  • Injections interval (up to 4 years of treatment)

    up to 4 years of treatment

  • Most stable injection interval

    up to 4 years of treatment

  • Overall extension interval

    up to 4 years of treatment

  • Covid 19 impact

    up to 4 years of treatment

  • +19 more secondary outcomes

Interventions

Data extraction from medical files

Eligibility Criteria

Age50 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Naive patients with age-related macular degeneration, neovascular type, treated with ranibizumab (Lucentis®) in "treat-and-extend" at the CHU Brugmann Hospital.

You may qualify if:

  • 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 ranibizumab between 01 January 2014 and November 30, 2019,
  • Treatment by "treat-and-extend" directly after the loading dose of ranibizumab,
  • Availability of the medical file reporting treatment with ranibizumab.

You may not qualify if:

  • Participation in an interventional clinical study during treatment with ranibizumab,
  • Patients suffering from ocular pathologies and having required surgery during the first 24 months of treatment with ranibizumab (for example advanced glaucoma or cataract).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

CHU Brugmann

Brussels, 1020, Belgium

Location

MeSH Terms

Conditions

Macular Degeneration

Condition Hierarchy (Ancestors)

Retinal DegenerationRetinal DiseasesEye Diseases

Study Officials

  • Laurence Postelmans

    CHU Brugmann

    STUDY DIRECTOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Head of ophtalmology department

Study Record Dates

First Submitted

May 10, 2021

First Posted

August 3, 2021

Study Start

April 13, 2021

Primary Completion

September 22, 2021

Study Completion

September 22, 2021

Last Updated

March 21, 2022

Record last verified: 2022-03

Data Sharing

IPD Sharing
Will not share

Locations