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A retrospective single-center real-world study of ranibizumab biosimilars in the treatment of diabetic macular edema

A retrospective single-center real-world study of ranibizumab biosimilars in the treatment of diabetic macular edema

Status
Active, not recruiting
Phases
Phase 4
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2600127487
Enrollment
Unknown
Registered
2026-07-01
Start date
2026-07-01
Completion date
Unknown
Last updated
2026-07-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

diabetic macular edema

Interventions

Observation group:None

Sponsors

The Second Affiliated Hospital of Zhejiang University School of Medicine
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Age >= 18 years old, no gender restrictions. 2. Study the diagnosis of diabetic macular edema (DME) lesions using eye examinations. An active lesion is defined as the presence of any of the following conditions in the macular area: (1) Fluid within the retina; (2) Lipid exudation within the retina; (3) Subretinal fluid. 3. DME that affects the fovea and results in a decline in the patient's visual acuity, with a central retinal thickness (CRT) >= 250 µm. 4. The stage is classified as NPDR. 5. The study eye had a BCVA measured using the ETDRS visual acuity chart of 73 to 34 letters (equivalent to a Snellen visual acuity chart range of 20/40 to 20/200 for the study eye). 6. Has received at least 3+ PRN Lucentis biosimilar treatments between January 2023 and June 2026.

Exclusion criteria

Exclusion criteria: 1.Any of the following conditions satisfies the exclusion criteria: Previous medical history/screening period: The affected eye has received any form of treatment within the past 6 weeks, including anti-VEGF medications, glucocorticoids, and laser photocoagulation (full-retinal laser photocoagulation, macular laser photocoagulation). 2. Patients with one eye. 3. Eye infections and other diseases that could affect the results of the study. 4. Situations determined by researchers to be unsuitable for inclusion in the study.

Design outcomes

Primary

MeasureTime frame
3-month mean change in BCVA from baseline;adverse event;

Countries

China

Contacts

Public ContactXu Yufeng

The Second Affiliated Hospital of Zhejiang University School of Medicine

xuyufeng0216@163.com+86 571 8778 3814

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Jul 23, 2026