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临床试验/NCT02639507
NCT02639507已完成不适用

International Consortium Investigating Early Vitrectomy in Diabetic Macular Edema Patients - the ICV-DME Study

Mayo Clinic2 个研究点 分布在 1 个国家目标入组 40 人开始时间: 2015年6月最近更新:
适应症

试验速览

阶段
不适用
状态
已完成
发起方
Mayo Clinic
入组人数
40
试验地点
2
主要终点
average (mean) improvement in Best Corrected Visual Acuity (BCVA) as measured with Snellen visual acuity

研究概览

简要总结

The purpose of this research is to evaluate the effectiveness of vitrectomy for the treatment of diabetic macular edema. Diabetes is known to cause retinal blood vessels to leak, leading to swelling of the central retina (macula), and decreased vision. Removing the vitreous gel with vitrectomy surgery is known to decrease the swelling caused by diabetes. Diabetic retinopathy is often treated with laser or injections of medicine in to the eye.

研究设计

研究类型
Observational
观察模型
Case Only
时间视角
Prospective

入排标准

年龄范围
18 Years 至 —(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Men and women, > 18 years of age with type 1 or 2 diabetes mellitus diagnosed and treated by an endocrinologist, internist or family medicine physician
  • Background diabetic retinopathy
  • DME with central subfield thickness (CST) > 325 µm by Spectral Domain Optical Coherence Tomography (SD-OCT)
  • HbA1c level of < 10.0 mg/dl
  • Previous cataract surgery with implantation of a stable posterior chamber intraocular lens or a phakic eye with 1+ (out of 4+ scale) or less lens opacification
  • Predominantly intact (80%) external limiting membrane (ELM) and photoreceptor inner/outer segment (IS/OS) lines within 500 µm of the fovea on horizontal and vertical SD-OCT scans
  • Best corrected Snellen visual acuity from 20/40 to 20/280 inclusive.

排除标准

  • Intraocular anti-vascular endothelial growth factor (VEGF) injection within the previous 3 months
  • Systemic anti-VEGF or receptor tyrosine kinase inhibitor therapy within the previous 3 months
  • Intraocular corticosteroid injection within the previous 6 months
  • Peri-ocular corticosteroid injection within the previous 3 months
  • Vitreomacular traction on SD-OCT scan (epiretinal membrane is allowed)
  • Previous anterior or pars plana vitrectomy
  • Glaucoma (IOP of > 21 mmHg or regular use of more than 2 IOP lowering drugs)
  • Previous trabeculectomy
  • Likelihood of needing intraocular surgery within 6 months
  • Hard exudates involving the fovea
  • Proliferative diabetic retinopathy with any evidence of retinal traction
  • Cataract of grade 2+ or greater.

结局指标

主要结局

average (mean) improvement in Best Corrected Visual Acuity (BCVA) as measured with Snellen visual acuity

时间窗: 6 months

次要结局

未报告次要终点

研究者

发起方
Mayo Clinic
申办方类型
Other
责任方
Principal Investigator
主要研究者

Michael W. Stewart, M.D.

PI

Mayo Clinic

研究点 (2)

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