Outcomes of Intravitreal Ranibizumab Injection for Diabetic Vitreous Hemorrhage (RANI-VH)
Outcomes of Intravitreal Ranibizumab Injection for Diabetic Vitreous Hemorrhage: A Prospective Interventional Cohort Study
This prospective interventional cohort study evaluates the outcomes of intravitreal ranibizumab injection in patients with diabetic vitreous hemorrhage secondary to proliferative diabetic retinopathy. The study aims to assess the effectiveness of ranibizumab in improving visual acuity, promoting vitreous hemorrhage clearance, reducing the need for pars plana vitrectomy, and evaluating treatment-related safety.
Eligible adult patients with diabetic vitreous hemorrhage will receive intravitreal ranibizumab according to the study protocol and will be followed for 3 to 6 months with serial ophthalmic examinations. Outcome measures include changes in best-corrected visual acuity, vitreous hemorrhage severity, treatment-related complications, and the proportion of patients requiring vitrectomy. Panretinal photocoagulation may be performed when adequate retinal visualization is achieved.
Visão geral do estudo
Status
Status
Condições
Condições
Intervenção / Tratamento
Intervenção / Tratamento
Descrição detalhada
Diabetic vitreous hemorrhage is a common vision-threatening complication of proliferative diabetic retinopathy. Hemorrhage into the vitreous cavity results from fragile retinal neovascularization and may cause marked visual impairment while preventing adequate retinal examination and laser treatment. Although pars plana vitrectomy remains the standard treatment for persistent or non-clearing vitreous hemorrhage, intravitreal anti-vascular endothelial growth factor (anti-VEGF) therapy has emerged as a potential treatment option for selected patients.
Ranibizumab is a recombinant humanized monoclonal antibody fragment that inhibits vascular endothelial growth factor A (VEGF-A), thereby reducing neovascular activity and vascular permeability. Suppression of VEGF may facilitate clearance of vitreous hemorrhage, improve visual acuity, allow subsequent panretinal photocoagulation, and reduce the need for vitrectomy.
This is a single-center prospective interventional cohort study conducted at the Ophthalmology Department of Benha University Hospital. Adult patients with diabetic vitreous hemorrhage who meet the eligibility criteria will receive intravitreal ranibizumab (0.5 mg/0.05 mL) under aseptic conditions. Patients will undergo comprehensive ophthalmic evaluation before treatment, including best-corrected visual acuity assessment, slit-lamp biomicroscopy, intraocular pressure measurement, fundus examination, and ocular imaging as clinically indicated, including optical coherence tomography, fluorescein angiography, or B-scan ultrasonography.
Participants will be followed after one week, one month, and monthly thereafter for 3 to 6 months. Additional ranibizumab injections may be administered after at least one month when clinically indicated. Panretinal photocoagulation may be performed once sufficient fundus visualization is obtained. Pars plana vitrectomy will be performed for worsening vitreous hemorrhage, persistent moderate or severe hemorrhage without adequate improvement, or the development of tractional retinal detachment involving the posterior pole.
The primary objectives are to evaluate improvement in best-corrected visual acuity and clearance of vitreous hemorrhage following intravitreal ranibizumab treatment. Secondary objectives include assessment of treatment-related adverse events and determination of the proportion of patients requiring pars plana vitrectomy during follow-up.
Tipo de estudo
Tipo de estudo
Inscrição (Real)
Inscrição
Estágio
Estágio
- Fase 4
Contactos e Locais
Locais de estudo
-
-
Benha
-
Banhā, Benha, Egito, 13111
- Benha University
-
-
Critérios de participação
Critérios de elegibilidade
Critérios de elegibilidade
Idades elegíveis para estudo
- Adulto
- Adulto mais velho
Aceita Voluntários Saudáveis
Descrição
Inclusion Criteria:
- Adults aged 20 to 70 years.
- Type 1 or Type 2 diabetes mellitus.
- Diabetic vitreous hemorrhage secondary to proliferative diabetic retinopathy.
- Treatment-naïve diabetic vitreous hemorrhage or recurrent/residual vitreous hemorrhage following previous panretinal photocoagulation.
- Phakic or pseudophakic eyes.
- Able and willing to provide written informed consent.
Exclusion Criteria:
- Significant tractional retinal detachment or retinal traction requiring immediate surgery.
- Previous ocular surgery other than cataract surgery.
- Previous intravitreal pharmacologic treatment within the preceding 6 months.
- Any type of glaucoma.
- Active ocular infection or significant ocular surface disease.
- No light perception vision.
- Known hypersensitivity to ranibizumab or any component of the study medication.
- Refusal or inability to provide informed consent.
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Tratamento
- Alocação: N / D
- Modelo Intervencional: Atribuição de grupo único
- Mascaramento: Nenhum (rótulo aberto)
Número de braços
Armas e Intervenções
Grupo de Participantes / BraçoGrupo de Participantes / Braço |
Intervenção / TratamentoIntervenção / Tratamento |
|---|---|
|
Experimental: Intravitreal Ranibizumab
Participants with diabetic vitreous hemorrhage secondary to proliferative diabetic retinopathy receive intravitreal ranibizumab (0.5 mg/0.05
mL).
Reinjection may be performed at least one month after the initial injection if clinically indicated.
Participants are followed for 3 to 6 months to assess visual acuity, vitreous hemorrhage clearance, treatment-related adverse events, and the need for pars plana vitrectomy.
Panretinal photocoagulation may be performed when adequate fundus visualization is achieved.
|
Ranibizumab (0.5 mg/0.05
mL) is administered by intravitreal injection under aseptic conditions.
Before injection, topical anesthetic and 5% povidone-iodine are applied.
The injection is performed using a 30-gauge needle through the inferotemporal pars plana approximately 4 mm posterior to the limbus.
Additional injections may be administered after at least one month according to clinical response.
|
O que o estudo está medindo?
Medidas de resultados primários
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Change in Best-Corrected Visual Acuity (BCVA)
Prazo: Baseline through 6 months
|
Change in BCVA from baseline to the end of follow-up, measured using Snellen visual acuity and converted to logMAR for statistical analysis.
|
Baseline through 6 months
|
Medidas de resultados secundários
Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Need for Additional Ranibizumab Injections
Prazo: Baseline through 6 months
|
Number and proportion of participants requiring reinjection based on persistent or incompletely resolved vitreous hemorrhage.
|
Baseline through 6 months
|
Colaboradores e Investigadores
Patrocinador
Patrocinador
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Real)
Início do estudo
Conclusão Primária (Real)
Conclusão Primária
Conclusão do estudo (Real)
Conclusão do estudo
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Real)
Primeira postagem
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última Atualização Postada
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
Outros números de identificação do estudo
Outros números de identificação do estudo
- BENHA-OPH-2025-RANI-VH-01
Informações sobre medicamentos e dispositivos, documentos de estudo
Estuda um medicamento regulamentado pela FDA dos EUA
Estuda um produto de dispositivo regulamentado pela FDA dos EUA
Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .