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Nicotinamide Riboside Supplementation in Chronic Kidney Disease (NR-CKD)

13. juli 2026 oppdatert av: Armin Ahmadi, PhD, University of California, San Diego

Pilot Randomized Crossover Trial of Nicotinamide Riboside in Chronic Kidney Disease (NR-CKD Trial)

This study is testing whether a dietary supplement called nicotinamide riboside, (NR), can be used in adults with moderate chronic kidney disease. NR is a form of vitamin B3 that may help support cellular energy metabolism.

The main goal of this study is to see whether it is feasible for people with chronic kidney disease to take NR daily, complete study visits, and follow the study procedures. The study will also explore whether NR chloride affects markers of mitochondrial health, small blood vessel function, and physical function.

Participants will be randomly assigned to one of two treatment orders. One group will take NR first and placebo second. The other group will take placebo first and NR second. Placebo looks like NR but does not contain active NR. Each treatment period lasts 12 weeks, with an approximately 2-week washout period between treatments. Neither participants nor the study team will know which treatment participants are taking during each period.

Study visits will include blood and urine collection, physical function testing, and noninvasive tests of small blood vessel function. The study will enroll up to 36 adults with moderate chronic kidney disease at the University of California, San Diego.

Studieoversikt

Status

Har ikke rekruttert ennå

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

Chronic kidney disease is associated with impaired mitochondrial function, vascular dysfunction, reduced physical function, and increased risk of cardiovascular and functional decline. Nicotinamide riboside is a vitamin B3 derivative and NAD+ precursor that may support cellular energy metabolism and vascular health.

This pilot study will evaluate the feasibility of using nicotinamide riboside in adults with moderate chronic kidney disease. The study uses a randomized, double-blind, placebo-controlled crossover design so that each participant receives both nicotinamide riboside chloride and placebo during separate treatment periods.

In addition to feasibility measures, the study will collect exploratory data on mitochondrial, microvascular, and physical function outcomes. These data will help determine whether a larger clinical trial of nicotinamide riboside in chronic kidney disease is practical and scientifically justified.

Studietype

Intervensjonell

Registrering (Antatt)

30

Fase

  • Fase 2

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studer Kontakt Backup

Studiesteder

  • Forente stater
    • California
      • San Diego, California, Forente stater, 92093
        • Altman Clinical and Translation Research Institute
        • Ta kontakt med:

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Voksen
  • Eldre voksen

Tar imot friske frivillige

Nei

Beskrivelse

Inclusion Criteria:

  • Moderate chronic kidney disease not treated with dialysis, defined as eGFR 30-59 mL/min/1.73 m2 using the CKD-EPI equation.
  • Urine albumin-to-creatinine ratio (uACR) <300 mg/g.
  • Able to provide informed consent.
  • Able to walk unassisted from room to room, with usual assistive device allowed if approved by study safety assessment.
  • Willing and able to comply with study procedures, visits, and study product administration.

Exclusion Criteria:

  • Pregnancy.
  • Expectation to start dialysis within 6 months.
  • Unable to walk unassisted from room to room.
  • Institutionalization or inability to consent.
  • End-stage liver disease with cirrhosis.
  • HIV.
  • Oxygen-dependent COPD.
  • Baseline systolic blood pressure >170 mmHg or diastolic blood pressure >100 mmHg.
  • Current participation in another interventional trial.
  • Use of immunosuppressive medications, including steroids or calcineurin inhibitors.
  • Malignancy requiring active treatment or currently under surveillance at the discretion of the investigator.
  • Hospitalization for myocardial infarction, unstable angina, cerebrovascular accident, or unstable cardiac chest pain within the prior 3 months.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Crossover-oppdrag
  • Masking: Trippel

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Placebo Then NR
Participants assigned to this arm will receive matched placebo for 12 weeks, followed by an approximately 14-day washout/crossover period, then nicotinamide riboside 1000 mg/day for 12 weeks.
Kosttilskudd: Matched Placebo (Capsules)
Matched placebo will be administered orally for 12 weeks during the placebo treatment period. The placebo will be identical or substantially similar in appearance to the active nicotinamide riboside study product to maintain blinding.
Eksperimentell: NR Then Placebo
Participants assigned to this arm will receive nicotinamide riboside 1000 mg/day for 12 weeks, followed by an approximately 14-day washout/crossover period, then matched placebo for 12 weeks.
Kosttilskudd: Nicotinamide Riboside (NR)
Nicotinamide riboside will be administered orally at a target dose of 1000 mg/day for 12 weeks during the active treatment period.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change in plasma cell-free mitochondrial DNA
Tidsramme: Baseline, Week 12, and Week 26
Change in plasma cell-free mitochondrial DNA concentration, measured as mitochondrial DNA copies per mL of plasma using droplet digital PCR.
Baseline, Week 12, and Week 26
Change in urine cell-free mitochondrial DNA
Tidsramme: Baseline, Week 12, and Week 26
Change in urine cell-free mitochondrial DNA concentration, measured using droplet digital PCR and reported as mitochondrial DNA copies normalized to urine osmolarity.
Baseline, Week 12, and Week 26

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change in skin fingernail capillary density
Tidsramme: Baseline, Week 12, and Week 26
Change in skin capillary density, measured as capillaries per mm2 using capillaroscopy.
Baseline, Week 12, and Week 26
Change in skin blood flow
Tidsramme: Baseline, Week 12, and Week 26
Change in skin blood flow, measured in laser Doppler perfusion units using laser Doppler flowmetry.
Baseline, Week 12, and Week 26
Change in six-minute walk distance
Tidsramme: Baseline, Week 12, and Week 26
Change in distance walked during the six-minute walk test, measured in meters.
Baseline, Week 12, and Week 26
Change in Handgrip Strength
Tidsramme: Baseline, Week 12, and Week 26
Change in handgrip strength, measured in kilograms using handheld dynamometry.
Baseline, Week 12, and Week 26
Change in Timed Up and Go
Tidsramme: Baseline, Week 12, and Week 26
Change in Timed Up and Go test performance, measured in seconds.
Baseline, Week 12, and Week 26
Change in 30-second sit-to-stand
Tidsramme: Baseline, Week 12, and Week 26
Change in the number of chair stands completed during the 30-second sit-to-stand test, measured as repetitions completed in 30 seconds.
Baseline, Week 12, and Week 26

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

University of California, San Diego

Etterforskere

  • Hovedetterforsker: Armin Ahmadi, PhD, University of California, San Diego

Publikasjoner og nyttige lenker

Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.

Generelle publikasjoner

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Antatt)

1. oktober 2026

Primær fullføring (Antatt)

30. september 2028

Studiet fullført (Antatt)

30. september 2028

Datoer for studieregistrering

Først innsendt

29. juni 2026

Først innsendt som oppfylte QC-kriteriene

3. juli 2026

Først lagt ut (Faktiske)

9. juli 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

15. juli 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

13. juli 2026

Sist bekreftet

1. juli 2026

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • UCSD-NR-001
  • 1K01DK147652 (U.S. NIH-stipend/kontrakt)

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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