Age-related Macular Degeneration: Detection of Onset of New Choroidal Neovascularization (AMD DOC Study)
2009年10月2日 更新者：Johns Hopkins University
The purpose of this study is to determine the sensitivity of the optical coherence tomography (OCT) test in detecting neovascular AMD in eyes at high risk for CNV development.
In order to test this hypothesis, we are conducting a multi-center clinical study at four participating clinical centers.
A total of 227 participants will be enrolled.
Participants will be followed-up for a period of two years, or until CNV develops in the study eye for which treatment is recommended, to determine the occurrence of CNV.
The fundamental design principles of the study are simplicity and parsimony.
調査の概要
詳細な説明
Primary Objective:
The purpose of this study is to determine the sensitivity of the OCT in detecting conversion to neovascular AMD by two years in eyes at high risk for CNV, with FA serving as the gold standard.
Secondary Objectives:
- To determine the specificity, positive predictive value, and negative predictive value of the OCT in detecting conversion to neovascular AMD by two years in eyes at high risk for CNV, with FA serving as the gold standard.
- To compare the sensitivity, specificity, positive predictive value, and negative predictive value of the OCT to the PHP or the supervised Amsler Grid in subjects who had either negative PHP and/or negative supervised Amsler grid at baseline for detection of neovascular AMD by two years in eyes at high risk for CNV
- To describe features of false positives and false negatives with respect to baseline characteristics seen on PHP testing, supervised Amsler grid testing, and OCT imaging
- To describe the relationship between new visual symptoms experienced by participants prompting an interim evaluation where treatment for CNV was recommended and findings seen at the previous study visit (PHP testing, supervised Amsler grid testing, OCT imaging, other findings on exam, or fluorescein angiography) as well as findings from the baseline visit
- To determine the physician's detection of CNV development on return study visits including slit lamp biomicroscopy before viewing ancillary tests from that visit (supervised Amsler grid, PHP, OCT, fundus photographs, fluorescein angiogram)
All participants will be examined upon enrollment and then followed every three months after enrollment for two years or until conversion to CNV is positive and treatment is recommended. Specifically, follow-up visits will occur at 3, 6, 9, 12, 15, 18, 21, and 24 months from the date of the Initial Visit.
研究の種類
観察的
入学 (実際)
98
連絡先と場所
このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。
研究場所
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California
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Beverly Hills、California、アメリカ、90211
- Retina Vitreous Associates
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Maryland
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Baltimore、Maryland、アメリカ、21287
- The Wilmer Eye Institute at Johns Hopkins
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Massachusetts
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Boston、Massachusetts、アメリカ、02114
- Ophthalmic Consultants of Boston
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Ohio
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Beachwood、Ohio、アメリカ、44122
- Retina Associates of Cleveland
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参加基準
研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。
適格基準
就学可能な年齢
50年歳以上 (大人、高齢者)
健康ボランティアの受け入れ
いいえ
受講資格のある性別
全て
サンプリング方法
非確率サンプル
調査対象母集団
Participants will have neovascular AMD in the fellow eye and non-neovascular AMD in the candidate study eye to be eligible for this study.
Additional inclusion and exclusion criteria are listed below.
説明
Inclusion Criteria:
- Ability to provide written informed consent and comply with study assessments for the full duration of the study
- Age 50 years or greater
- Best corrected visual acuity letter score = 65 or greater (approximate Snellen equivalent of 20/50 or better in the candidate study eye)
- Neovascular AMD in the fellow eye and no CNV in the candidate study eye (absence of CNV confirmed by FA which will be graded in a masked fashion by the AMD DOC Study Reading Center)
- Candidate study eye must have evidence of at least one large druse (≥ 125µm) and focal hyperpigmentation within 3600μm of the fovea and visible on color fundus photography, red-free photograph, or fluorescein angiography
- Participant must have media clear enough in the candidate study eye to permit fundus photography, fluorescein angiography, and optical coherence tomography and absence of any fluorescein allergies
- Results of the baseline PHP and supervised Amsler grid will not affect eligibility of the participant. Subjects can be eligible for further follow-up even if they have positive PHP and Amsler grid
- Eligible participants who have a positive PHP or supervised Amsler grid for that eye at the initial screening visit should have a second PHP or supervised Amsler grid screening visit within 2 weeks in order to repeat the PHP or Amsler test or the participant may repeat the PHP or Amsler grid that day before pupillary dilation. Participants with a 2nd positive PHP or supervised Amsler grid are still eligible for further follow-up
- All tests (supervised Amsler grid, PHP, OCT, FA) must be performed within 2 weeks of each other
- Participants with non-foveal geographic atrophy in the candidate study eye are still eligible for enrollment in the study
Exclusion Criteria:
- Known allergy to fluorescein angiography or allergic reaction during screening
- Advanced AMD with CNV in both eyes confirmed on FA graded by the AMD DOC Study Reading Center
- Foveal geographic atrophy in the study eye
- Positive OCT test for the candidate study eye, as read by the AMD DOC Study Reading Center, for subretinal fluid, intraretinal edema, or retinal thickening that falls within the top 1% of the normative data base for the Stratus OCT
- Significant media opacity that precludes reasonable quality retinal imaging including color fundus photographs, fluorescein angiography, or OCT in the candidate study eye to assess the presence of CNV
- Evidence of macular disease (e.g., pattern dystrophy, diabetic macular edema, vitreomacular traction) other than AMD in the study eye
- Previous surgical or laser treatment to the macula of the study eye
- Diabetic retinopathy
研究計画
このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。
研究はどのように設計されていますか？
デザインの詳細
協力者と研究者
ここでは、この調査に関係する人々や組織を見つけることができます。
スポンサー
捜査官
- スタディチェア：Diana V. Do, M.D.、Johns Hopkins Medical Institutes
- スタディディレクター：Neil M. Bressler, M.D.、Johns Hopkins Medical Institutes
研究記録日
これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。
主要日程の研究
研究開始
2007年1月1日
一次修了 (実際)
2009年8月1日
研究の完了 (実際)
2009年8月1日
試験登録日
最初に提出
2007年1月3日
QC基準を満たした最初の提出物
2007年1月3日
最初の投稿 (見積もり)
2007年1月4日
学習記録の更新
投稿された最後の更新 (見積もり)
2009年10月5日
QC基準を満たした最後の更新が送信されました
2009年10月2日
最終確認日
2009年10月1日
詳しくは
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。