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

13 juli 2026 uppdaterad 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.

Studieöversikt

Status

Har inte rekryterat ännu

Betingelser

Intervention / Behandling

Detaljerad beskrivning

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.

Studietyp

Interventionell

Inskrivning (Beräknad)

30

Fas

  • Fas 2

Kontakter och platser

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Studiekontakt

Studera Kontakt Backup

Studieorter

  • Förenta staterna
    • California
      • San Diego, California, Förenta staterna, 92093
        • Altman Clinical and Translation Research Institute
        • Kontakt:

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

  • Vuxen
  • Äldre vuxen

Tar emot friska volontärer

Nej

Beskrivning

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

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: Randomiserad
  • Interventionsmodell: Crossover tilldelning
  • Maskning: Trippel

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: 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.
Kosttillskott: 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.
Experimentell: 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.
Kosttillskott: 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.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Change in plasma cell-free mitochondrial DNA
Tidsram: 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
Tidsram: 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

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Change in skin fingernail capillary density
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

University of California, San Diego

Utredare

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

Publikationer och användbara länkar

Den som ansvarar för att lägga in information om studien tillhandahåller frivilligt dessa publikationer. Dessa kan handla om allt som har med studien att göra.

Allmänna publikationer

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Beräknad)

1 oktober 2026

Primärt slutförande (Beräknad)

30 september 2028

Avslutad studie (Beräknad)

30 september 2028

Studieregistreringsdatum

Först inskickad

29 juni 2026

Först inskickad som uppfyllde QC-kriterierna

3 juli 2026

Första postat (Faktisk)

9 juli 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

15 juli 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

13 juli 2026

Senast verifierad

1 juli 2026

Mer information

Termer relaterade till denna studie

Nyckelord

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

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

Plan för individuella deltagardata (IPD)

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NEJ

Läkemedels- och apparatinformation, studiedokument

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