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临床试验/NCT00802893
NCT00802893终止2 期

Phase 2, Randomized, Double-Blind, Placebo-Controlled, Dose-Escalation, Parallel Study of Oral 6R-BH4 in Subjects With Isolated Systolic Hypertension and Endothelial Dysfunction

Johns Hopkins University1 个研究点 分布在 1 个国家目标入组 3 人开始时间: 2008年12月最近更新:
适应症
干预措施
相关药物

试验速览

阶段
2 期
状态
终止
入组人数
3
试验地点
1
主要终点
Evaluate the Efficacy of 6R-BH4 Versus Placebo to Improve Endothelia Function

研究概览

简要总结

This study is designed to assess the safety and efficacy of twice-daily oral dosing of 6R-BH4 to improve endothelial function, reduce systolic blood pressure and reduce arterial stiffness.

详细描述

By comparing values measured at different timepoints, the study is expected to provide insight regarding the ability of 6R-BH4, administered along with their currently prescribed antihypertension medications, to improve endothelial function, reduce SBP, and reduce arterial stiffness in patients with ISH and endothelial dysfunction

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Treatment
盲法
Double

入排标准

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

入选标准

  • No change in prescribed antihypertension medications within the previous 30 days
  • Study staff able to visualize and measure the brachial artery diameter by high resolution vascular ultrasound required for FMD measurements
  • ISH with the following mean seated BP: SBP > 145 and < 180 mmHg. Diastolic blood pressure < 90mmHg

排除标准

  • Has known hypersensitivity to 6RBH4 or its excipients
  • Pregnant or breastfeeding at screening
  • Use of any investigational product or investigational medical device within 30 days prior to screening
  • Current disease or condition that would interfere with study participation or safety such as the following: heart failure, atrial fibrillation, aortic valve disease, bleeding disorders, history of repeated syncope or vertigo, severe GERD, GI ulcer, symptomatic coronary or peripheral vascular disease, arrhythmia, serious neurologic disorders including seizures, organ transplant or organ failure
  • Hypertension secondary to other medical conditions
  • Any severe comorbid condition that would limit life expectancy to <6 months
  • Current use of any nicotine containing substances
  • History of drug or alcohol abuse
  • MI, stroke or surgery within 90 days before Screening Visit
  • CABG within 6 months before the Screening Visit
  • Serum creatinine >2.0mg/dl or AST, ALT, GGT levels >2times upper limit of normal
  • Concomitant treatment with: any drug known to inhibit folate metabolism, any phosphodiesterase-5 or -3 inhibitor
  • Previous treatment with any formulation of BH4

研究组 & 干预措施

Experimental Drug

Experimental

干预措施: 6R-BH4 (Drug)

Placebo Comparator

Placebo Comparator

干预措施: Placebo (Other)

结局指标

主要结局

Evaluate the Efficacy of 6R-BH4 Versus Placebo to Improve Endothelia Function

时间窗: 4-6 weeks

次要结局

  • Evaluate the Efficacy of Oral 6R-BH4 Versus Dosage-equivalent Placebo to Improve Endothelia Function, to Reduce SBP, to Reduce Arterial Stiffness(4-8 weeks)

研究者

申办方类型
Other
责任方
Sponsor

研究点 (1)

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