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Effectiveness of Intravitreal Injection of Aflibercept 8 mg in Resistant Diabetic Macular Edema, Retinal Vein Occlusion and Myopic Choroidal Neovascularisation Patients

NCT06879301 · Status: NOT_YET_RECRUITING · Phase: EARLY_PHASE1 · Type: INTERVENTIONAL · Enrollment: 60

Last updated 2025-03-17

No results posted yet for this study

Summary

Generally, DM is caused by insufficient insulin secretion in the body; however, the other biological mechanisms remain unclear. Long-term illness in patients with DM damages various organs in the body, such as the eyes, kidneys, and heart, seriously affecting organ function. Nowadays, the quality of life of people has improved significantly, eating habits have changed, sugar intake is increasing, and the number of patients with DM is increasing. Statistics show that in 2017, the number of patients with DM worldwide reached 425 million (aged 20-79 years), which will exceed 600 million in 30 years; moreover, patients in low- and middle-income countries, such as China and India, account for 80 percent of the total DM population (1). According to the WHO, patients with DM worldwide increased to 366 million in 2011, which is expected to increase to 500 million in 2025, with more than 150 million patients experiencing ocular complications, such as diabetic retinopathy (DR) (2, 3). DR is a form of ocular microangiopathy and the most serious DM-related complication; it seriously endangers the health of patients with DM (4). DR pathogenesis includes increased endothelial cells in the eye capillaries, increased intimal thickness, damaged pericytes, microangioma, and damaged blood-retina barrier due to increased permeability of the blood vessels, microvascular obstruction, and neovascularization (NV) (5, 6). Currently, the prevalence of DR is 34.6% worldwide; however, it is higher in some developed countries, reaching 40.3% (7). The proportion of patients with type 1 and 2 DM suffering from blindness due to DR is 3.6% and 1.6%, respectively (8). DR is associated with significantly reduced living standards, huge medical costs, and increased social burden (9, 10).

Many anti-vascular endothelial growth factor (VEGF) drugs exist; however, the use of therapeutic drugs is strictly controlled. The main drugs recommended for treating DM-related visual complications are ranibizumab and aflibercept.

Conditions

  • Diabetic Macular Edema (DME)
  • Retinal Vein Occlusion (RVO)
  • Myopic Choroidal Neovascularisation

Interventions

DRUG

Intravitreal injection of aflibercept 8 mg

Preoperative preparation: Patients were prepared by applying topical fluoroquinolone eye drops (moxifloxacin hydrochloride 0.5% Vigamox, Alcon, USA) 4 times daily for three days before injection. Procedure: The intravitreal injection was carried out in the operating room under complete aseptic techniques with an operating microscope. After the topical application of anaesthetic drops (benoxinate hydrochloride 0.4%, Benox, Epico, Egypt) to the ocular surface followed by the topical application of 10% povidone-iodine (Betadine) to the periocular area, lids and eye lashes, 5% povidone iodine was administered inside the conjunctival sac for three minutes before the intravitreal injection. 0.07 ml of aflibercept (8 mg) was injected into the vitreous cavity in the inferotemporal quadrant of the globe using a 30-gauge needle 4 mm from the limbus. Postoperative care: After injection, topical antibiotic drops (moxifloxacin hydrochloride 0.5% Vigamox, Alcon, USA) were applied, and the eye was

Sponsors & Collaborators

  • Tanta University

    lead OTHER

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
20 Years
Max Age
60 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-10-19
Primary Completion
2025-11-19
Completion
2025-12-19

Countries

  • Egypt

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06879301 on ClinicalTrials.gov