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Recruiting Phase 2 NCT02947750

NCT02947750 Neurovascular Transduction During Exercise in Chronic Kidney Disease

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Clinical Trial Summary
NCT ID NCT02947750
Status Recruiting
Phase Phase 2
Sponsor Emory University
Condition Renal Insufficiency, Chronic
Study Type INTERVENTIONAL
Enrollment 150 participants
Start Date 2016-10
Primary Completion 2027-04-30

Eligibility & Interventions

Sex All sexes
Min Age 18 Years
Max Age 75 Years
Study Type INTERVENTIONAL
Interventions
6R-BH46R-BH4 placeboFolic acid

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

In Phase 2, researchers evaluate early signs of effectiveness. You may be randomized to receive the active treatment or a comparator. Monitoring continues closely.

This trial targets 150 participants in total. It began in 2016-10 with a primary completion date of 2027-04-30.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

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.

Eligibility Criteria

Inclusion Criteria for Chronic Kidney Disease Patients: * 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 the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation * 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) * Willing and able to cooperate with the study protocol Inclusion Criteria for Control Study Participants: * Does not exercise regularly (defined as exercising less than 20 minutes twice per week) * Willing and able to cooperate with the study protocol Exclusion 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

Contact & Investigator

Central Contact

Jeanie Park, MD

✉ jeanie.park@emory.edu

📞 404-727-2525

Principal Investigator

Joe Nocera, PhD

PRINCIPAL INVESTIGATOR

Emory University

Frequently Asked Questions

Who can join the NCT02947750 clinical trial?

This trial is open to participants of all sexes, aged 18 Years or older, up to 75 Years, studying Renal Insufficiency, Chronic. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

What phase is the NCT02947750 trial and what does that mean for participants?

Phase 2 trials evaluate whether the treatment shows signs of effectiveness while continuing to monitor safety. More participants are enrolled than in Phase 1 to help refine the treatment protocol.

Is NCT02947750 currently recruiting?

Yes, NCT02947750 is actively recruiting participants. Contact the research team at jeanie.park@emory.edu for enrollment information.

Where is the NCT02947750 trial being conducted?

This trial is being conducted at Atlanta, United States, Atlanta, United States, Decatur, United States.

Who is sponsoring the NCT02947750 clinical trial?

NCT02947750 is sponsored by Emory University. The principal investigator is Joe Nocera, PhD at Emory University. The trial plans to enroll 150 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: April 2026  ·  Data Methodology