Recruiting at 3 sites Phase 2 Renal Insufficiency, Chronic

Renal Insufficiency, Chronic study: 6R-BH4 vs Stretching

Official title Neurovascular Transduction During Exercise in Chronic Kidney Disease

ClinicalTrials.gov ID: NCT02947750

What this study is testing

What is 6R-BH4?

6R-BH4 is an investigational medicine, taken by mouth twice daily, being studied as a potential treatment for renal insufficiency, chronic.

Also referred to as Tetrahydrobiopterin, Kuvan.

Plain-language explanation of the investigational treatment. It is being studied and is not an approved or proven therapy. The study team can confirm the details.

What it's testing
This study aims to understand why people with chronic kidney disease get tired easily and have high blood pressure during exercise. It also checks if specific treatments can improve these issues.
Who it's for
People with chronic kidney disease who are interested in testing new ways to manage exercise limits.
What's involved
Participants will perform bicycle exercises and take either a specific pill (6R-BH4) or supplements (histidine and beta-alanine). Researchers will monitor blood pressure and body responses during these activities.
Time commitment
The study involves regular exercise sessions and medication or supplement intake over a set period to track changes in how the body handles physical activity.
  • Phase 2: a mid-size study of how well it works
  • You might receive a placebo (an inactive treatment) instead of the study drug, decided by chance.

A plain-language read of the study's public ClinicalTrials.gov listing. The study team confirms the details.

Who can take part

Ages 18 to 75

You may be able to join if

  • Stage III or IV Chronic Kidney Disease, defined as reduction in estimated glomerular filtration rate (eGFR) to 15-59 cc/minute as calculated by the...
  • Stable renal function, with no greater than a 30% reduction in eGFR over the prior 3 months
  • Does not exercise regularly (defined as exercising less than 20 minutes twice per week)
  • Does not exercise regularly (defined as exercising less than 20 minutes twice per week)
  • Willing and able to cooperate with the study protocol

You likely can't join if

  • severe CKD (eGFR\<15 cc/minute)
  • ongoing drug or alcohol abuse
  • diabetic neuropathy
  • any serious systemic disease that might influence survival
  • severe anemia with hgb level \<9 g/dL
  • clinical evidence of congestive heart failure or ejection fraction below 35%
See the full eligibility criteria
Who can join
  • Stage III or IV Chronic Kidney Disease, defined as reduction in estimated glomerular filtration rate (eGFR) to 15-59 cc/minute as calculated by the modified Modification of Diet in Renal Disease (MDRD) Study equation or...
  • Stable renal function, with no greater than a 30% reduction in eGFR over the prior 3 months
  • Does not exercise regularly (defined as exercising less than 20 minutes twice per week)
  • Does not exercise regularly (defined as exercising less than 20 minutes twice per week)
  • Willing and able to cooperate with the study protocol
What rules you out
  • severe CKD (eGFR\<15 cc/minute)
  • ongoing drug or alcohol abuse
  • diabetic neuropathy
  • any serious systemic disease that might influence survival
  • severe anemia with hgb level \<9 g/dL
  • clinical evidence of congestive heart failure or ejection fraction below 35%
  • symptomatic heart disease determined by prior electrocardiogram, stress test, and/or history
  • treatment with central alpha agonists (clonidine)
  • uncontrolled hypertension with BP greater than 170/100 mm Hg
  • low blood pressure with BP less than 100/50
  • pregnancy or plans to become pregnant
  • current treatment with monoamine oxidase (MAO) inhibitors
  • inability to exercise on a stationary bicycle

The study team makes the final eligibility decision.

Where it is enrolling

  • Atlanta, Georgia, United States
  • Decatur, Georgia, United States

Questions & answers

Do participants get paid in this trial?

This listing doesn't specify compensation. Many trials still reimburse travel or offer a stipend, so it's worth asking the study team when you connect.

Is it free to join, and do I need insurance?

Searching and applying through BridgeMD is free. In clinical trials the study-related treatment and visits are generally provided at no cost to you. You usually don't need insurance to take part, but confirm specifics with the study team.

How long does this study last?

The listing doesn't state an exact length. The study team walks you through the schedule and number of visits before you decide to enroll.

Who can join this trial?

This study is enrolling all sexes, 18 years to 75 years. The study team makes the final eligibility decision.

Where is this trial taking place?

This study is enrolling now at Atlanta, Georgia, United States; Decatur, Georgia, United States. Enter your location above to see the nearest enrolling site and check your eligibility.

Explore other conditions

BridgeMD is an information and trial-matching tool that is independent of the study sponsor. Details come from ClinicalTrials.gov. The study team decides eligibility, and your own doctor gives medical advice.