Neurovascular Transduction During Exercise in Chronic Kidney Disease

Description

The purpose of this study is to find out why patients with chronic kidney disease (CKD) have poor exercise capacity and to explore what causes an increase in blood pressure during exercise (i.e. increased adrenaline levels, or decreased ability of blood vessels to dilate). This study will also test whether or not regular exercise on a bicycle and/or treatment with 6R-BH4 (Kuvan) pills, or histidine and beta-alanine supplementation improves these measures during exercise. 6R-BH4 is currently FDA-approved for use in patients with certain forms of a disease called phenylketonuria, but it is not currently FDA approved for blood pressure or exercise capacity in people with CKD.

Conditions

Renal Insufficiency, Chronic

Study Overview

Study Details

Study overview

The purpose of this study is to find out why patients with chronic kidney disease (CKD) have poor exercise capacity and to explore what causes an increase in blood pressure during exercise (i.e. increased adrenaline levels, or decreased ability of blood vessels to dilate). This study will also test whether or not regular exercise on a bicycle and/or treatment with 6R-BH4 (Kuvan) pills, or histidine and beta-alanine supplementation improves these measures during exercise. 6R-BH4 is currently FDA-approved for use in patients with certain forms of a disease called phenylketonuria, but it is not currently FDA approved for blood pressure or exercise capacity in people with CKD.

Neurovascular Regulation During Exercise in Humans With Chronic Kidney Disease

Neurovascular Transduction During Exercise in Chronic Kidney Disease

Condition
Renal Insufficiency, Chronic
Intervention / Treatment

-

Contacts and Locations

Atlanta

Emory University Hospital Midtown, Atlanta, Georgia, United States, 30308

Atlanta

Emory University Hospital, Atlanta, Georgia, United States, 30322

Decatur

Atlanta VA Health Care System, Decatur, Georgia, United States, 30033

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

For general information about clinical research, read Learn About Studies.

Eligibility Criteria

  • * 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

Ages Eligible for Study

18 Years to 75 Years

Sexes Eligible for Study

ALL

Accepts Healthy Volunteers

No

Collaborators and Investigators

Emory University,

Joe Nocera, PhD, PRINCIPAL_INVESTIGATOR, Emory University

Study Record Dates

2024-10