A Efficacy and Safety Study of Ranibizumab 10mg/ml Injection (Incepta) in Patients With Diabetic … (NCT06305416) | Clinical Trial Compass
RecruitingPhase 3
A Efficacy and Safety Study of Ranibizumab 10mg/ml Injection (Incepta) in Patients With Diabetic Macular Edema
Bangladesh70 participantsStarted 2024-03-30
Plain-language summary
Macular edema in diabetes, defined as retinal thickening within two disc diameters of the center of the macula, results from retinal microvascular changes that compromise the blood-retinal barrier, causing leakage of plasma constituents into the surrounding retina and consequently retinal edema. Thickening of the basement membrane and reduction in the number of pericytes are believed to lead to increased permeability and incompetence of the retinal vasculature. This compromise of the blood-retinal barrier leads to the leakage of plasma constituents into the surrounding retina with subsequent retinal edema. Hypoxia produced by this mechanism can also stimulate the production of vascular endothelial growth factor (VEGF). Vascular endothelial growth factor (VEGF) increases retinal vascular permeability, causes breakdown of the blood-retina barrier and results in retinal edema.
Diabetic macular edema (DME) is the most common cause of visual reduction in patients with Diabetes Mellitus. The prevalence of DME globally is around 6.8 %. Diabetic Retinopathy (DR) is the most common microvascular complication of diabetes and the leading cause of blindness worldwide. DME is a complication of diabetic retinopathy that affects the macula, which is located at the center of the retina and responsible for central vision. Bangladesh is the 10th country in the world for the number of adults living with diabetes with some 7.1 million (5.3-12.0). In Bangladesh, it is therefore expected that diabetic secondary complications, like DR, will increase along with the rising trend of diabetes mellitus.
The use of therapeutic monoclonal antibodies has revolutionized in the treatment of many diseases. In recent years, millions of patients have been successfully treated with these biological agents. Ranibizumab is one such therapeutic monoclonal antibody for intraocular use. Ranibizumab is a humanized, recombinant, immunoglobulin G1 monoclonal antibody fragment against vascular endothelial growth factor A (VEGF-A) and thus prevents choroidal neovascularization. The small size of ranibizumab allows for enhanced diffusion into the retina and choroid.
Who can participate
Age range
18 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. Ages Eligible for Study: ≥ 18 Years
. Ability to provide written informed consent and comply with study assessments for the full duration of the study
. Diagnosis of diabetes mellitus (type 1 or 2). Any one of the following will be considered to be sufficient evidence that diabetes is present: Laboratory reports that prove DM of patient or current regular use of insulin for treatment of diabetes or current regular use of oral anti-hyperglycemic agent for the treatment of diabetes.
. Clinical evidence of retinal thickening due to macular edema involving the center of the macula (can be associated with diabetic retinopathy)
. Central diabetic macular edema present on clinical examination and OCT testing with central 1mm sub field thickness greater than 300 microns as measured on -OCT
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Changes in Best Corrected Visual Acuity (BCVA) from Baseline
Timeframe: Baseline and Week 12
2
Changes in Central Subfield Thickness (CST) from Baseline
. Visual acuity score greater than or equal to 19 letters (20/400) and less than or equal to 73 letters (20/40) by the ETDRS/ Snellen chart visual acuity protocol
. Media clarity, pupillary dilation and patient cooperation sufficient to allow OCT testing and retinal photography
. Willingness and ability to undertake all scheduled visits and assessments
Exclusion criteria
. Prior treatment with any Intravitreal drug, Bevacizumab, verteporfin or photodynamic therapy (except for extra foveal laser photocoagulation) in the study eye within past 3 months before study entry
. Laser photocoagulation in the study eye within 1 month before study entry
. Participation in another ocular investigation or trial simultaneously
. Pregnancy (positive pregnancy test) or known to be pregnant; also pre-menopausal women not using adequate contraception.
. Blood pressure \> 160/100 mmHg (systolic above 160 or diastolic above 100) and Random Blood Sugar (RBS) ≥ 12 mmol/L and/ or HbA1c ≥ 7.5%
. Evidence of vitreoretinal interface abnormality and optic nerve disease after ocular exam or OCT that may be contributing to the macular edema
. Any concurrent intraocular condition in the study eye that could either require medical or surgical intervention during the study period or that could contribute to a loss of best corrected visual acuity over the study period (e.g. cataract that might decrease the vision by 3 or more lines, uncontrolled glaucoma, uveitis, previous corneal transplant etc.). The decision regarding exclusion is to be based on the opinion of the investigator.
. An eye that, in the investigator's opinion, has no chance of improving in visual acuity following resolution of macular edema (e.g. presence of sub retinal fibrosis or geographic atrophy).