NCT04040959

Brief Summary

Risk of cardiovascular diseases (CVD) is significantly elevated in patients with chronic kidney disease (CKD); however, this increased risk is only partially explained by traditional CV risk factors. Arterial dysfunction is an important nontraditional CV risk factor gaining increased recognition in the field of nephrology. This process is best represented, both physiologically and pathophysiologically, by increases in the gold standard measure of arterial stiffening, carotid to femoral artery pulse wave velocity (CFPWV), which reflects, in particular, increases in aortic stiffness. Aortic stiffening with CKD is mediated by structural and functional (increased vascular smooth muscle tone) changes in the arterial wall stimulated by oxidative stress and chronic low-grade inflammation. Caloric restriction (CR) is a promising strategy for prevention of CKD-associated arterial dysfunction and CVD. However, long-term adherence to chronic CR regimens with optimal nutrition is very difficult to achieve. Research has shown that boosting NAD+ bioavailability to stimulate SIRT-1, a "CR mimetic" approach, reduces CFPW and oxidative stress in old mice, and this lab recently took the first step in translating these findings in a study of adults with normal kidney function and elevated systolic blood pressure (SBP). The data found that supplementation with nicotinamide riboside, a natural, commercially available precursor of NAD+ and novel CR mimetic, increased NAD+ bioavailability and reduced CFPWV and SBP. A randomized, placebo-controlled, double-blind, single-site phase IIa clinical trial to assess the safety and efficacy of oral nicotinamide riboside (500 mg capsules 2x/day; NIAGEN®; ChromaDex Inc.) for 3 months vs. placebo for decreasing aortic stiffness and SBP in patients (35-80 years) with stage III and IV CKD is being proposed. It is hypothesized that treatment will reduce CFPWV and SBP, as related to increases in systemic NAD+ bioavailability and reductions in oxidative stress, and inflammation. Aim 1: To measure CFPWV (primary outcome) before/after nicotinamide riboside vs. placebo treatment; Aim 2: To measure casual and 24h-ambulatory SBP (secondary outcome) before and after treatment; Aim 3: To determine the safety and tolerability of treatment with nicotinamide riboside vs. placebo; Aim 4: To measure systemic NAD+ and NAD+-related metabolite concentrations, as well as circulating markers of oxidative stress, inflammation, and vasoconstriction factors before and after treatment.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
118

participants targeted

Target at P50-P75 for phase_2

Timeline
Completed

Started Nov 2019

Longer than P75 for phase_2

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 26, 2019

Completed
6 days until next milestone

First Posted

Study publicly available on registry

August 1, 2019

Completed
4 months until next milestone

Study Start

First participant enrolled

November 19, 2019

Completed
4.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 15, 2024

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 15, 2024

Completed
Last Updated

April 10, 2024

Status Verified

April 1, 2024

Enrollment Period

4.5 years

First QC Date

July 26, 2019

Last Update Submit

April 9, 2024

Conditions

Keywords

stiffnesschronic kidney diseaseHypertension

Outcome Measures

Primary Outcomes (1)

  • carotid-femoral pulse wave velocity

    change in carotid-femoral pulse wave velocity

    Baseline and 3 months

Secondary Outcomes (2)

  • Systolic blood pressure

    Baseline and 3 months

  • Systolic blood pressure

    Baseline and 3 months

Other Outcomes (2)

  • Number of participants with treatment-related adverse events as assessed by Common Terminology Criteria for Adverse Events v4.0

    weeks 2, 4, 6, 8, 10, and 12

  • Change in blood cellular NAD+ metabolism

    baseline and 3 months

Study Arms (2)

Nicotinamide Riboside

EXPERIMENTAL

Each nicotinamide riboside capsule contains 250 mg of nicotinamide riboside chloride mixed with microcrystalline cellulose. Dosage: 500 mg by mouth twice a day for 3 months.

Drug: Nicotinamide riboside

Placebo

PLACEBO COMPARATOR

Matched placebo capsules.

Drug: Nicotinamide riboside

Interventions

Nicotinamide riboside is a naturally occurring vitamin B3 derivative found in yeast, bacteria, and mammalian tissues, and also has been detected in cows' milk.

Nicotinamide RibosidePlacebo

Eligibility Criteria

Age35 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age 35-80 years;
  • Ability to provide informed consent;
  • Willing to accept random assignment to condition;
  • CKD stage III or IV (eGFR with the 4-variable MDRD prediction equation: 20-60 mL/min/1.73m2; stable renal function in the past 3 months);
  • Blood pressure controlled to \<140/90 mmHg for the past 3 months;
  • Body mass index \<40 kg/m2;
  • Weight stable in the prior 3 months (\<2 kg weight change) and willing to remain weight stable throughout the study

You may not qualify if:

  • Patients with advanced CKD requiring chronic dialysis;
  • Significant co-morbid conditions that lead the investigator to conclude that life expectancy \< 1 year;
  • History of severe congestive heart failure (i.e., ejection fraction \< 35%);
  • Hospitalization in the past month;
  • Proteinuria \> 5 g/day;
  • Immunosuppressant agents such as cyclosporine, tacrolimus, azathioprine, etanercept, infliximab, adalimumab, anakinra or long-term oral glucocorticoids taken in past 12 months;
  • Known malignancy;
  • Woman who are pregnant, nursing or planning to become pregnant;
  • Special classes of subjects considered vulnerable populations will not be included in the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

UColorado

Aurora, Colorado, 80045, United States

RECRUITING

Related Publications (1)

  • Oh ES, Opoku G, Darvish S, Craighead DH, Ostrow A, Rossman MJ, Steele CN, Struemph T, You Z, Seals DR, Chonchol M, Nowak KL. Sex Differences in Dementia and Mild Cognitive Impairment in Nondialysis CKD. Clin J Am Soc Nephrol. 2025 Nov 20. doi: 10.2215/CJN.0000000922. Online ahead of print. No abstract available.

MeSH Terms

Conditions

Vascular DiseasesKidney DiseasesRenal Insufficiency, ChronicHypertension

Interventions

nicotinamide-beta-riboside

Condition Hierarchy (Ancestors)

Cardiovascular DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital DiseasesRenal InsufficiencyChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Michel Chonchol, MD

    University of Colorado, Denver

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 26, 2019

First Posted

August 1, 2019

Study Start

November 19, 2019

Primary Completion

May 15, 2024

Study Completion

September 15, 2024

Last Updated

April 10, 2024

Record last verified: 2024-04

Data Sharing

IPD Sharing
Will not share

Locations