MR 拮抗剂和 LSD1
LSD1 在黑人高血压中的作用
Lysine specific demethylase-1 (LSD1) is an epigenetic regulator of gene transcription involved in the pathophysiology of elevated blood pressure and likely renal damage in Blacks. This project investigates whether a genetically driven anti-hypertensive approach proves superior in controlling blood pressure and mitigating renal injury in Blacks who carry the risk allele for LSD1 (rs587168). The findings of these investigations may lead to a new approach in treating a subset (~30%) of the essential hypertension population (Black LSD1 risk allele hypertensives).
研究概览
详细说明
This proof-of-principle physiologic study in hypertensive Black LSD1 risk allele carriers testing the hypothesis that reductions in blood pressure will be greater with a genetically-driven anti-hypertensive approach (mineralocorticoid receptor antagonist, eplerenone) compared to a non-specific approach (amlodipine). 56 participants will be enrolled in a 12-week randomized, double-blind, active controlled, outpatient study to assess whether eplerenone (LSD1 specific treatment) proves superior in 24-hr ambulatory systolic blood pressure reduction than amlodipine (non-specific treatment). Participants will be randomized to either eplerenone 50mg or amlodipine 2.5mg with escalations in dose of study drug every 4 weeks if the participant's blood pressure is > 140/90.
研究类型
注册 (实际的)
阶段
- 第四阶段
联系人和位置
学习地点
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Massachusetts
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Boston、Massachusetts、美国、02115
- Brigham and Women's
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-
参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
- untreated as well as currently treated hypertensives
- rs587168 allele carriers
- not on more than two anti-hypertensives
- normal renal, metabolic, electrolyte, and CBC laboratory tests
- self-identified Black race
- age >17 yrs.
Exclusion Criteria:
- known cardiac disease other than HTN
- renal, circulatory or neurologic diseases
- diabetes
- smoking
- secondary HTN as indicated by history, physical examination or screening blood and urine tests
- smoking
- any drug therapy, except for anti-hypertensives and stable thyroid medication replacement
学习计划
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：三倍
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
|
实验性的：Eplerenone Arm
We posit that individuals who carry the LSD1 risk allele have increased mineralocorticoid receptor activity, which results in hypertension. Thus, our mechanistic clinical study will assess whether hypertensive LSD1 risk allele carriers will show significantly greater reductions in blood pressure with a specific aldosterone mediated treatment approach (mineralocorticoid receptor blockade) than with a non-specific approach (amlodipine). To test this hypothesis, we will perform a randomized, double-blind, active controlled study in hypertensive carriers of the LSD1 risk allele using a novel two-limb, proof-of-principle study. Our primary outcome will be a liberal salt diet systolic blood pressure. Therefore, this mechanistic trial will provide support for using a genetic marker that identifies individuals who are uniquely responsive to mineralocorticoid receptor blockade--personalized, precision medicine. |
Dose escalations of eplerenone 50, 100, or 200mg |
|
实验性的：Amlodipine Arm
We posit that individuals who carry the LSD1 risk allele have increased mineralocorticoid receptor activity, which results in hypertension. Thus, our mechanistic clinical study will assess whether hypertensive LSD1 risk allele carriers will show significantly greater reductions in blood pressure with a specific aldosterone mediated treatment approach (mineralocorticoid receptor blockade) than with a non-specific approach (amlodipine). To test this hypothesis, we will perform a randomized, double-blind, active controlled study in hypertensive carriers of the LSD1 risk allele using a novel two-limb, proof-of-principle study. Our primary outcome will be a liberal salt diet systolic blood pressure. Therefore, this mechanistic trial will provide support for using a genetic marker that identifies individuals who are uniquely responsive to mineralocorticoid receptor blockade--personalized, precision medicine. |
Dose escalations of amlodipine 2.5, 5, or 10mg |
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 |
|---|---|---|
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24-hour systolic ambulatory blood pressure
大体时间：Change in systolic blood pressure between baseline and 4 weeks on study drug
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Subjects will be counseled regarding liberal salt dietary intake to ensure similar intakes in all subjects [Na+ (200 mEq), potassium (K+, 100 mEq) and calcium (800 mg)]. After completion of this diet for 6 days, the subject will collect a 24-hour ambulatory blood pressure. Procedure will be performed before randomization and after 4 weeks of therapy. |
Change in systolic blood pressure between baseline and 4 weeks on study drug
|
合作者和调查者
调查人员
- 首席研究员：Andrea Haas, MD、Brigham and Women's
研究记录日期
研究主要日期
学习开始 (实际的)
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (实际的)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
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.