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NCT Number: NCT07305012

Feasibility and Acceptability of a New Tool Promoting a Healthy Lifestyle in Liver and Kidney Transplant Recipients

This interventional clinical trial tests whether a doctor-delivered lifestyle counseling program, supported by two personalized digital tools, is feasible and helpful for improving healthy eating and physical activity in older adults (65 years or older) who previously received a liver or kidney transplant.

All participants first receive medical counseling on healthy diet and physical activity. After 12 weeks, they begin using two smartphone apps ("Gamebus" and "Nutrida") designed to support behavior change at home. Each participant acts as their own comparison, and results after starting the apps are compared with their own results before using them.

The main goal is to find out whether participants can safely use the apps and follow the program (for example: staying in the study, using the apps daily, completing weekly tasks). The study also looks at whether the combined approach-counseling plus digital support-can help improve eating habits, physical activity, body measurements, and routine lab values related to metabolic health.

Participants attend three study visits over 24 weeks. At each visit, they complete questionnaires, undergo body measurements and body composition tests, review their recent diet, and receive lifestyle guidance. At the end, the study will help determine whether this digital-supported lifestyle program is practical and acceptable for older transplant recipients.

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Key information

Conditions

Liver Transplant Kidney Transplant

Age range

60 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

IRCCS Azienda Ospedaliero-Universitaria di Bologna

Bologna, BO, 40138, Italy

Location status: Recruiting

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age ≥ 60 years
  • Liver or kidney transplant received at least 6 months and no more than 25 years prior
  • BMI between 21 and 29.9
  • Signed informed consent
  • Having a personal smartphone
  • Stable immunosuppressive therapy in the past 3 months

Exclusion criteria

  • Significant weight change (>5% of body weight) in the past 3 months
  • Combined liver-kidney transplant
  • Medical conditions requiring specific diets that may render adherence to the dietary recommendations of the trial unsafe (e.g., chronic kidney disease, inflammatory bowel disease, celiac disease, bariatric surgery, etc.)
  • General physical conditions deemed by the investigator to contraindicate safe participation in any of the trial activities (e.g., blindness, vertebral fractures, wheelchair dependence, home oxygen therapy, etc.)
  • Adherence to specific dietary regimens for ethical and/or religious reasons that are incompatible with the dietary recommendations of this trial
  • Active malignant tumors currently under pharmacological treatment or awaiting surgical treatment (except cutaneous squamous cell carcinomas), or history of malignant tumors within the last 5 years, except for hepatocellular carcinoma
  • Psychiatric comorbidities deemed by the investigator to potentially compromise safety and/or adherence, thereby risking biasing the results (e.g., schizophrenia, bipolar disorder, eating disorders, etc.)
  • Changes in glucose-lowering or lipid-lowering therapy during the 90 days prior to the enrollment visit
  • Active participation in another research or non-research program aimed at lifestyle modification
  • Any clinical condition, diagnosed or under diagnostic evaluation, that the investigator considers may compromise safety and/or a priori adherence to the intervention, with a potential risk of altering the study outcomes

Treatment and study plan

Promoting a Healthy Lifestyle through Digital Support Tools (Nutrida and Gamebus)

Behavioral

The intervention to promote a healthy lifestyle, through counseling activities combined with Digital Support Tools (Nutrida and Gamebus), will be prescribed by all partecipants

Primary outcomes

  1. Adherence to a Personalized Digital-Mediated Lifestyle Intervention in Transplant Recipients Aged ≥65 Years

    Time frame: Between weeks 12 and 24 from the enrollment

    Adherence will be measured between weeks 12 and 24 through the following criteria: dropout rate <5%, daily use of each app >5 minutes, >2 daily log-ins per app, and >4 weekly tasks completed in the "Gamebus" app.

Secondary outcomes

  1. Effect of the Integrated Digital Intervention on Adherence to a Healthy Dietary Pattern

    Time frame: At weeks 12 and 24

    The effect of the intervention on dietary adherence will be evaluated through changes in Mediterranean diet adherence assessed via MEDAS score categories

  2. Effect of the Integrated Digital Intervention on Physical Activity

    Time frame: At weeks 12 and 24

    The effect on physical activity will be evaluated by the number of participants with age-normative handgrip strength (in kg) values being equal to or greater than baseline.

  3. Effect of the Integrated Intervention on Body Composition and Anthropometric Parameters

    Time frame: At baseline, 12 week, and 24 week.

    Variations in fat mass (%)

  4. Effect of the Integrated Intervention on Glycolipid Metabolic Parameters

    Time frame: At baseline, 12 weeks, and 24 weeks.

    Changes in triglycerides (mg/dL)

Interested in participating?

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Sponsors and collaborators

Lead sponsor

IRCCS Azienda Ospedaliero-Universitaria di Bologna

Other

Registry information

Official study title

Feasibility and Acceptability of a New Tool for a Conscious Education and Motivation Promoting a hEalthy LIfestyle in Liver and Kidney Transplant rEcipients

Important dates

Study start
2025
Primary completion
2026
Study completion
2026
First posted
Dec 26, 2025
Registry last updated
Dec 26, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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