Effectiveness of Biosimilar Ranibizumab in the Management of Diabetic Macular Edema (ERBDME)
Effectiveness of Biosimilar Ranibizumab in the Management of Diabetic Macular Edema: A Retrospective Observational Cohort Study
Diabetic macular edema (DME) is a leading cause of vision loss in patients with diabetes. Anti-VEGF agents are widely used to improve vision and reduce retinal swelling. However, treatment cost remains a major barrier in many healthcare systems.
This study evaluates the real-world effectiveness and safety of a ranibizumab biosimilar in patients with DME. Medical records of adult patients treated at a tertiary ophthalmology center will be reviewed. Changes in best-corrected visual acuity (BCVA) and central macular thickness (CMT) will be analyzed from baseline to final follow-up, along with treatment burden and safety outcomes.
The findings aim to provide evidence on visual and anatomical outcomes following biosimilar anti-VEGF therapy in routine clinical practice.
Studie Overzicht
Toestand
Toestand
Conditie
Conditie
Interventie / Behandeling
Interventie / Behandeling
Gedetailleerde beschrijving
Studietype
Studietype
Inschrijving (Werkelijk)
Inschrijving
Contacten en locaties
Studie Locaties
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Benha
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Banhā, Benha, Egypte, 13111
- Benha University
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Deelname Criteria
Geschiktheidscriteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Kind
- Volwassen
- Oudere volwassene
Accepteert gezonde vrijwilligers
Bemonsteringsmethode
Studie Bevolking
Beschrijving
Inclusion Criteria:
• Age ≥18 years
- Diagnosis of type 1 or type 2 diabetes mellitus
- Center-involving diabetic macular edema confirmed by OCT
- Received at least one intravitreal ranibizumab biosimilar injection
- Minimum follow-up duration of 3-6 months
Exclusion Criteria:
• Macular edema due to causes other than diabetes
- Prior anti-VEGF treatment within specified washout period
- Significant media opacity affecting imaging
- Coexisting retinal pathology affecting vision (e.g., AMD, RVO)
- Prior vitreoretinal surgery
- Incomplete records or inadequate follow-up
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
Aantal groepen / cohorten
Cohorten en interventies
Groep / CohortGroep / Cohort |
Interventie / BehandelingInterventie / Behandeling |
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Ranibizumab biosimilar treatment group
This cohort includes adult patients with type 1 or type 2 diabetes mellitus diagnosed with center-involving diabetic macular edema confirmed by optical coherence tomography (OCT), who received at least one intravitreal injection of ranibizumab biosimilar during the study period.
All data are obtained retrospectively from medical records at the Retina Unit, Department of Ophthalmology, Benha University Hospitals.
Patients were managed according to routine clinical practice using ranibizumab biosimilar administered via intravitreal injection, with treatment regimens including loading doses, pro re nata (PRN), or treat-and-extend (T&E) protocols as determined by the treating physician.
No control or comparator group is included in this observational study.
Outcomes of interest include changes in best-corrected visual acuity (BCVA), central macular thickness (CMT), injection burden, and the incidence of ocular and systemic adverse events during follow-up.
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Intravitreal ranibizumab biosimilar administered as part of routine clinical care for the treatment of center-involving diabetic macular edema.
Patients included in this retrospective cohort received at least one intravitreal injection of the biosimilar during the study period.
Treatment regimens were determined by the treating physician and may have included an initial loading phase followed by pro re nata (PRN) or treat-and-extend (T&E) protocols based on disease activity assessed by clinical examination and optical coherence tomography (OCT).
The intervention was not assigned by the investigators, and no randomization or experimental treatment allocation was performed.
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Wat meet het onderzoek?
Primaire uitkomstmaten
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Change in best-corrected visual acuity (BCVA)
Tijdsspanne: Baseline to final follow-up (minimum 3-6 months)
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Mean change in best-corrected visual acuity (BCVA) from baseline to the final follow-up visit after intravitreal ranibizumab biosimilar treatment in patients with diabetic macular edema.
BCVA will be recorded in Snellen or converted to ETDRS equivalent letters where applicable, and compared between baseline and post-treatment measurements.
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Baseline to final follow-up (minimum 3-6 months)
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Secundaire uitkomstmaten
Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Change in central macular thickness (CMT)
Tijdsspanne: Baseline to final follow-up (minimum 3-6 months)
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Mean change in central macular thickness (CMT) measured by optical coherence tomography (OCT) from baseline to final follow-up after intravitreal ranibizumab biosimilar treatment in eyes with diabetic macular edema.
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Baseline to final follow-up (minimum 3-6 months)
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Medewerkers en onderzoekers
Sponsor
Sponsor
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Studie start
Primaire voltooiing (Werkelijk)
Primaire voltooiing
Studie voltooiing (Werkelijk)
Studie voltooiing
Studieregistratiedata
Eerst ingediend
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Eerst geplaatst
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update geplaatst
Laatste update ingediend die voldeed aan QC-criteria
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Andere studie-ID-nummers
Andere studie-ID-nummers
- DME-RANIBIZUMAB-BIOSIMILAR-202
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
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