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Ranibizumab in Hemorrhagic Choroidal Neovascularization Trial

2012年9月18日 更新者:Dr. Neil M. Bressler、Johns Hopkins University

This research is being done to look at the effects of an experimental drug, ranibizumab, on a condition called "predominantly hemorrhagic subfoveal choroidal neovascularization (CNV)" due to wet age-related macular degeneration.

A predominantly hemorrhagic CNV lesion is diagnosed when at least 50% of the choroidal neovascular lesion is occupied by blood under the retina. We want to find out if injections of ranibizumab into the eye will help patients with this condition.

研究概览

详细说明

This study is a randomized, interventional case series. A total of 10 patients, seen in the Retina Division of the Wilmer Eye Institute, will be enrolled. Subjects will be randomized to either 0.3 mg or 0.5 mg intravitreal injections of ranibizumab, which will be performed monthly for 3 doses. Further monthly injections are at the discretion of the examiner, and may be withheld if there is lack of continued improvement (defined as lack of improvement of at least 5 letters on an eye chart compared with 2 previous consecutive visits or lack of decrease of the retinal center point thickness of at least 50 microns compared with 2 previous consecutive visits) or complete success (defined as visual acuity of 20/20 or better or retinal center point thickness <225 microns).

研究类型

介入性

注册 (实际的)

7

阶段

  • 阶段1

联系人和位置

本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。

学习地点

    • Maryland
      • Baltimore、Maryland、美国、21287
        • The Wilmer Eye Institute at Johns Hopkins

参与标准

研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

50年 及以上 (成人、年长者)

接受健康志愿者

有资格学习的性别

全部

描述

Inclusion Criteria:

Subjects will be eligible if the following criteria are met:

  • Ability to provide written informed consent and comply with study assessments for the full duration of the study.
  • Predominantly hemorrhagic subfoveal CNV (at least 50% of the lesion composed of hemorrhage) from age-related macular degeneration (AMD) resulting in visual acuity of 20/40 or worse.
  • Age greater than 50 years.
  • Participant must have media clear enough to permit fundus photography, fluorescein angiography, and optical coherence tomography.

Exclusion Criteria:

Subjects who meet any of the following criteria will be excluded from this study:

  • Known hypersensitivity to humanized monoclonal antibodies
  • History (within past 6 months) or evidence of severe cardiac disease (apparent in electrocardiogram abnormalities, clinical history of unstable angina, acute coronary syndrome, myocardial infarction, revascularization procedure within 6 months prior to baseline, atrial or ventricular tachyarrhythmias requiring ongoing treatment).
  • History of stroke within 6 months of study entry.
  • Current acute ocular or periocular infection.
  • Any major surgical procedure within one month of study entry.
  • Known serious allergies to fluorescein dye.
  • Previous participation in a clinical trial (for either eye) involving anti-angiogenic drugs (pegaptanib, ranibizumab, anecortave acetate, Protein Kinase C inhibitors, etc) within last 6 months.
  • Previous intravitreal drug delivery (e.g., intravitreal corticosteroid injection or device implantation) in the study eye within the last 6 months.
  • History of subfoveal laser treatment in the study eye.
  • History of other visually-limiting conditions such as optic neuropathy, amblyopia, choroidal neovascularization due to causes other than AMD in the study eye.
  • Ocular inflammation (including trace or above) in the study eye.
  • Inability to comply with study or follow up procedures.

学习计划

本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。

研究是如何设计的?

设计细节

  • 主要用途:治疗
  • 分配:随机化
  • 介入模型:并行分配
  • 屏蔽:单身的

武器和干预

参与者组/臂
干预/治疗
实验性的:A
0.3 mg/0.05 ml dose of ranibizumab
0.3 毫克/0.05 毫升剂量
其他名称:
  • Lucentis
0.5 毫克/0.05 毫升剂量
其他名称:
  • Lucentis
实验性的:B
0.5 mg/0.05 ml dose of ranibizumab
0.3 毫克/0.05 毫升剂量
其他名称:
  • Lucentis
0.5 毫克/0.05 毫升剂量
其他名称:
  • Lucentis

研究衡量的是什么?

主要结果指标

结果测量
措施说明
大体时间
Number of Subjects Avoiding 15 or More Letter Loss of Best Corrected Visual Acuity From Baseline to 12 Months on an Early Treatment Diabetic Retinopathy Study (ETDRS) Visual Acuity Chart Measured at 4 Meters.
大体时间:12 months
Visual acuity measured prior to first treatment with ranibizumab and at 12 months following the first treatment were compared for each subject enrolled in the study. The 12 month follow-up visual acuity was subtracted from the baseline visual acuity. Avoiding a 15 or more letter loss in visual acuity was considered a successful outcome.
12 months

次要结果测量

结果测量
措施说明
大体时间
Retinal Changes on Funduscopy
大体时间:12 months
12 months
Retinal Thickness Measured by Optical Coherence Tomography (OCT)
大体时间:12 months
12 months
Fluorescein Leakage on Fluorescein Angiography
大体时间:12 months
12 months
Number of Subjects Experiencing Complications Related to Drug or Its Administration
大体时间:12 months after last injection

Potential complications included:

  • Deterioration of best-corrected visual acuity by 3 or more lines
  • Development of intraocular inflammation
  • Development of elevated intraocular pressure
  • Development of other ocular or systemic adverse effects.

Subjects were monitored for potential drug-related ocular adverse effects: intraocular inflammation (uveitis), endophthalmitis, central retinal vein occlusion, transient elevation of IOP, acute reduction in the visual acuity, vitreous hemorrhage, injection-site pain, retinal hemorrhage, posterior vitreous detachment, and subconjunctival hemorrhage. Subjects were monitored for potential adverse effects of intravitreal injections: crystalline lens penetration, retinal break and/or detachment, vitreous hemorrhage, inflammation, and infection. Potential systemic adverse effects were captured by monitoring vital functions such as cardiovascular function, nervous system function, renal function, and gastrointestinal function.

12 months after last injection

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

出版物和有用的链接

负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始

2006年8月1日

初级完成 (实际的)

2008年6月1日

研究完成 (实际的)

2009年5月1日

研究注册日期

首次提交

2006年8月9日

首先提交符合 QC 标准的

2006年8月9日

首次发布 (估计)

2006年8月15日

研究记录更新

最后更新发布 (估计)

2012年10月19日

上次提交的符合 QC 标准的更新

2012年9月18日

最后验证

2012年9月1日

更多信息

此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.

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