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Development of a Precision Nutrition Expert System Combining AI Dietary Image Recognition and Big Data Analysis: A Case Study on Kidney Disease (CKDCare)

20. oktober 2026 oppdatert av: China Medical University Hospital

The goal of this interventional study is to evaluate a smartphone-based precision nutrition system for patients with chronic kidney disease (CKD).

The main questions it aims to answer are:

  1. Do patients with CKD find the CKDCare system easy to use?
  2. Does using the system change patients' dietary intake, including the proportion of ultra-processed foods they consume?

The system, called CKDCare, runs inside the LINE messaging app. It uses artificial intelligence to recognize food from photos, a chatbot to answer everyday diet questions, and a back-end dashboard that lets dietitians review each person's dietary records.

Participants will:

  1. Use the CKDCare system in the LINE app for three months
  2. Take photos of their meals and record what they eat
  3. Complete a questionnaire about how easy the system is to use

Have their routine clinic blood test results and nutritional assessment reviewed as part of their usual care.

Some participants will also take part in a short interview about their experience. Dietitians and physicians who care for CKD patients will use the back-end management system and give feedback on it.

Studieoversikt

Status

Fullført

Forhold

Intervensjon / Behandling

Studietype

Intervensjonell

Registrering (Faktiske)

50

Fase

  • Ikke aktuelt

Kontakter og plasseringer

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

Studiesteder

  • Taiwan
      • Taichung, Taiwan, 40447
        • China Medical University Hospital

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

20 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

CKD patients:

  • Aged 20 years or older
  • Physician-diagnosed chronic kidney disease
  • Available dietary records from the outpatient nutrition clinic

Healthcare professionals:

- Clinical dietitian certified in CKD nutrition, CKD outpatient dietitian, or nephrologist

Exclusion Criteria:

  • Younger than 20 years of age
  • No available dietary records from the outpatient nutrition clinic

Studieplan

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

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Støttende omsorg
  • Tildeling: N/A
  • Intervensjonsmodell: Enkeltgruppeoppdrag
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: CKD patients

Adults aged 20 years or older with a physician-diagnosed chronic kidney disease, recruited from the outpatient nutrition clinic. Participants used the CKDCare LINE chatbot to record their meals and receive personalized dietary advice for three months.
Enhet: CKDcare

Participants will use the CKDCare system, a dietitian-led LINE chatbot integrating dietary self-monitoring, personalized nutrition feedback, and nutrition education for CKD self-management.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
System Usability Scale (SUS) score
Tidsramme: At 3 months (end of the system trial period)

Usability of the CKDCare system measured by the 10-item System Usability Scale. Total score ranges from 0 to 100, with higher scores indicating better perceived usability.
At 3 months (end of the system trial period)

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Estimated glomerular filtration rate (eGFR)
Tidsramme: Baseline and after the intervention (at 3 months)

Estimated glomerular filtration rate (eGFR) will be obtained from routine clinical laboratory records and expressed in mL/min/1.73 m². Changes from baseline to 3 months will be evaluated.
Baseline and after the intervention (at 3 months)
Blood urea nitrogen (BUN)
Tidsramme: Baseline and after the intervention (at 3 months)

Blood urea nitrogen (BUN) will be obtained from routine clinical laboratory records and expressed in mg/dL. Changes from baseline to 3 months will be evaluated.
Baseline and after the intervention (at 3 months)
Serum creatinine
Tidsramme: Baseline and after the intervention (at 3 months)

Serum creatinine will be obtained from routine clinical laboratory records and expressed in mg/dL. Changes from baseline to 3 months will be evaluated.
Baseline and after the intervention (at 3 months)
Serum albumin
Tidsramme: Baseline and after the intervention (at 3 months)

Serum albumin will be obtained from routine clinical laboratory records and expressed in g/dL. Changes from baseline to 3 months will be evaluated.
Baseline and after the intervention (at 3 months)
Serum potassium
Tidsramme: Baseline and after the intervention (at 3 months)

Serum potassium will be obtained from routine clinical laboratory records and expressed in mmol/L. Changes from baseline to 3 months will be evaluated.
Baseline and after the intervention (at 3 months)
Serum phosphorus
Tidsramme: Baseline and after the intervention (at 3 months)

Serum phosphorus will be obtained from routine clinical laboratory records and expressed in mg/dL. Changes from baseline to 3 months will be evaluated.
Baseline and after the intervention (at 3 months)
Hemoglobin (Hb)
Tidsramme: Baseline and after the intervention (at 3 months)

Hemoglobin will be obtained from routine clinical laboratory records and expressed in g/dL. Changes from baseline to 3 months will be evaluated.
Baseline and after the intervention (at 3 months)
Daily energy intake
Tidsramme: Baseline and after the intervention (at 3 months)

Daily energy intake will be assessed using dietary records and expressed in kilocalories per day (kcal/day). Changes from baseline to 3 months will be evaluated.
Baseline and after the intervention (at 3 months)
Daily protein intake
Tidsramme: Baseline and after the intervention (at 3 months)

Daily protein intake will be assessed using dietary records and expressed in grams per day (g/day). Changes from baseline to 3 months will be evaluated.
Baseline and after the intervention (at 3 months)
Daily sodium intake
Tidsramme: Baseline and after the intervention (at 3 months)

Daily sodium intake will be assessed using dietary records and expressed in milligrams per day (mg/day). Changes from baseline to 3 months will be evaluated.
Baseline and after the intervention (at 3 months)
Daily potassium intake
Tidsramme: Baseline and after the intervention (at 3 months)

Daily potassium intake will be assessed using dietary records and expressed in milligrams per day (mg/day). Changes from baseline to 3 months will be evaluated.
Baseline and after the intervention (at 3 months)
Daily phosphorus intake
Tidsramme: Baseline and after the intervention (at 3 months)

Daily phosphorus intake will be assessed using dietary records and expressed in milligrams per day (mg/day). Changes from baseline to 3 months will be evaluated.
Baseline and after the intervention (at 3 months)
Subjective Global Assessment (SGA)
Tidsramme: Baseline and after the intervention (at 3 months)

Nutritional status will be assessed by a dietitian using the Subjective Global Assessment (SGA), classified as well nourished (A), moderately malnourished (B), or severely malnourished (C). Changes in nutritional status from baseline to 3 months will be evaluated.
Baseline and after the intervention (at 3 months)
Proportion of ultra-processed food intake
Tidsramme: Baseline and after the intervention (at 3 months)

The proportion of ultra-processed food intake will be assessed using the NOVA food classification system. Kidney disease-specific therapeutic nutritional supplements will be excluded from the calculation. Changes from baseline to 3 months will be evaluated.
Baseline and after the intervention (at 3 months)

Samarbeidspartnere og etterforskere

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

Sponsor

China Medical University Hospital

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 (Faktiske)

25. mars 2026

Primær fullføring (Faktiske)

23. september 2026

Studiet fullført (Faktiske)

23. september 2026

Datoer for studieregistrering

Først innsendt

13. september 2026

Først innsendt som oppfylte QC-kriteriene

17. september 2026

Først lagt ut (Faktiske)

21. september 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

21. oktober 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

20. oktober 2026

Sist bekreftet

1. oktober 2026

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • CMUH114-REC1-021

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