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Eplerenone for Central Serous Chorioretinopathy

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Tufts Medical Center

关键词

抽象

- The goal of the study is to examine the short-term effects and safety of a systemic anti-aldosterone medication, eplerenone, in a small group of patients with central serous chorioretinopathy (CSCR).
- There is currently no standard treatment or therapy for either acute or chronic CSCR, a potentially debilitating eye disease.
- There is evidence in both animals and humans that high blood serum corticosteroid levels can cause or worsen CSCR or findings similar to CSCR in the choroid and retina
- Eplerenone, a mineralocorticoid receptor antagonist, has been shown to be of visual and anatomic benefit in a small series of 4 patients with chronic CSCR, suggesting that decreasing mineralocorticoid action in the eye may improve signs and symptoms of CSCR
- The investigators' aim is to evaluate a standardized dose of eplerenone in a controlled prospective fashion for both acute and chronic CSCR.
- The study consists of taking a standard dose of eplerenone, 50mg once daily, for 1 month
- Over the course of the month, patients will be monitored for side effects, as well as visual and anatomical response to the medication

描述

- The investigators hypothesize that aldosterone inhibition with eplerenone will decrease choroidal vessel vasodilation, focal leakage, and choroidal thickness in patients with both acute and chronic CSCR, leading to resolution of subretinal fluid and ultimately an improvement in symptoms.

- Resolution of sub-retinal fluid will be the primary outcome, which can be precisely measured using optical coherence tomography (OCT)

- Secondary outcomes will include: Change in macular thickness measured with OCT, in central macular circle thickness on OCT, change in visual acuity, change in dye leakage characteristics on fluorescein angiography, change in OCT characteristics of the fellow eye, and safety and tolerability characteristics

- In acute CSCR, subretinal fluid often resolves on its own, but it often takes several months (the literature shows that ~20% of patients have complete resolution of sub-retinal fluid on OCT 1 month after presentation)

- Chronic CSCR is defined as persistent fluid on OCT after 3 months of symptom onset, or recurrence of signs and symptoms within 1 year after the prior episode

- In this study, the investigators will not make a distinction between acute and chronic CSCR

- Eplerenone, a generic medication, is a potassium sparing diuretic, which is FDA approved to treat heart failure as well as high blood pressure, but is not FDA approved for treatment of central serous chorioretinopathy.

- The most important side effect of eplerenone is elevation of serum potassium and decrease of blood pressure

- Patients will therefore be screened with routine blood tests as suggested by the package insert of the medication, and serum potassium and blood pressure will be monitored routinely as directed by the medication package insert

- Study visits will be performed at therapy initiation, 1 week, 2 weeks, and 4 weeks

日期

最后验证: 03/31/2018
首次提交: 03/24/2013
提交的预估入学人数: 03/31/2013
首次发布: 04/01/2013
上次提交的更新: 04/16/2018
最近更新发布: 05/15/2018
首次提交结果的日期: 04/16/2018
首次提交质量检查结果的日期: 04/16/2018
首次发布结果的日期: 05/15/2018
实际学习开始日期: 04/30/2013
预计主要完成日期: 03/31/2017
预计完成日期: 11/30/2017

状况或疾病

Central Serous Chorioretinopathy

干预/治疗

Drug: Eplerenone

相 2

手臂组

干预/治疗
Experimental: Eplerenone
All patients in this study will receive Eplerenone 50mg once daily for 4 weeks.
Drug: Eplerenone
All patients will receive the same dose of eplerenone.

资格标准

有资格学习的年龄 18 Years 至 18 Years
有资格学习的性别All
接受健康志愿者
标准

Inclusion Criteria:

1. Age 18 or over

2. Ability to give written informed consent

3. Presence of sub-retinal fluid under the fovea as seen on OCT

4. Diagnosis of Acute or Chronic CSCR:

- Acute CSCR: First presentation to eye clinic with visual symptoms, including decreased vision or visual distortion, and the characteristic appearance of CSCR on examination, fluorescein angiography, and OCT.

- Chronic CSCR: Previous diagnosis of CSCR, persistent subretinal fluid on OCT for more than 3 months after initial presentation to the eye clinic, and <50% reduction in fluid thickness on OCT after 3 months. Patients who have had previous treatment for CSCR may be included.

Exclusion Criteria:

1. Age less than 18

2. Persons with impaired decision-making ability.

3. Women who are known to be pregnant or are actively trying to conceive.

4. Additional eye disease affecting the macula or posterior retina.

5. At screening, serum potassium concentration ≥5.0 mEq/L , a serum creatinine concentration >2 mg/dL in men and >1.8 mg/dL in women, or a creatinine clearance <50 mL/min, and during concomitant administration of potassium supplements, potassium-sparing diuretics, and/or potent CYP3A4 inhibitors (amifostine, cyclosporine, fluconazole, itraconazole, ketoconazole, mifepristone, posaconazole, potassium salts, Rituximab, tacrolimus or voriconazole).

6. Patients with type 2 diabetes will be screened for microalbuminuria with a urinalysis. If microalbuminuria is present, these patients will be excluded.

结果

主要结果指标

1. Complete Resolution of Subretinal Fluid [Baseline and 1 month after treatment]

Optical coherence tomography is an imaging technique capable of extremely high resolution (~5-7 microns) imaging of the macula, and is able to detect the presence and amount of subretinal fluid present, the key anatomic abnormality in Central Serous Chorioretinopathy

次要成果指标

1. Change in Macular Thickness [Baseline and 1 month after treatment]

Automated software to calculate the thickness of the macula is standard on commercial OCT devices. Macular thickness before and after treatment will be assessed and compared.

2. Change in Best Corrected Visual Acuity [Baseline and 1 month after treatment]

Visual acuity will be measured with standard eye charts, with manifest refraction at the initiation and conclusion of treatment. Although an important measure, this was not chosen as the primary outcome measure, as some patients with central serous chorioretinopathy may have a normal visual acuity when properly refracted (refraction can change with elevation of the macula by sub-retinal fluid)

3. Change in Subfoveal Choroidal Thickness, Study Eye [Baseline and 1 month after treatment]

Choroidal thickness can be measured using optical coherence tomography, and is known to be affected in patients with central serous chorioretinopathy. Thickness of the choroid under the fovea will be manually calculated in both the study eye.

4. Change in Serum Potassium [Baseline and 1 month after treatment]

Eplerenone can cause elevation of serum potassium. After initial screening, serum potassium was evaluated at 1 and 4 weeks after baseline.

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