Oral 6R-BH4 for the Treatment of Isolated Systolic Hypertension and Endothelial Dysfunction

Phase 2

Terminated

• Conditions: Isolated Systolic Hypertension; Endothelial Dysfunction
• Interventions: Other: Placebo; Drug: 6R-BH4

• Registration Number: NCT00802893
• Lead Sponsor: Johns Hopkins University

Brief Summary

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.

Detailed Description

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

Study Timeline

• Study Start: 2008-12
• Study First Submitted: 2008-12-04
• Study First Submitted QC: 2008-12-04
• Study First Posted: 2008-12-05
• Primary Completion: 2009-05
• Study Completion: 2009-05
• Results First Submitted: 2017-07-20
• Status Verified: 2017-08
• Results First Submitted QC: 2017-08-17
• Last Update Submitted: 2017-08-17
• Results First Posted: 2017-08-21
• Last Update Posted: 2017-08-21

Recruitment & Eligibility

• Status: TERMINATED
• Sex: All
• Target Recruitment: 3

Inclusion Criteria

• 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

Exclusion Criteria

• 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

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Placebo Comparator	Placebo	-
Experimental Drug	6R-BH4	-

Primary Outcome Measures

Name	Time	Method
Evaluate the Efficacy of 6R-BH4 Versus Placebo to Improve Endothelia Function	4-6 weeks

Secondary Outcome Measures

Name	Time	Method
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

Trial Locations

Locations (1)

Johns Hopkins University; 🇺🇸 Baltimore, Maryland, United States