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Completed

NCT Number: NCT05951140

Personalised Nutrition for Healthy Living

The topic of diet and physical activity are of great importance in the treatment of T2D. In the daily routine of a practice or clinic, a doctor has an average of eight minutes per patient, leaving little time for lifestyle issues (Irving et al. 2017). An individualised procedure requires more time and therefore more resources. Currently, an app can be programmed with evidence-based information so that it provides appropriate personalised behavioural recommendations via machine learning. The user gets direct feedback and can make a behavioural change himself. On the one hand, this approach allows better use of doctor-patient time and, on the other hand, the patient learns through positive reinforcement in such a way that his or her behaviour change is supported and reinforced in the longer term and potentially sustainably.

The aim of this intervention pilot study within the scope of the EU-Horizon 2020 project is to investigate lifestyle support through a mobile app and wearables to improve lifestyle (personalised nutrition) and important metabolic outcomes in patients with type 2 diabetes or prediabetes. In addition, exploratory genetic and microbiome data will be explored to answer the question of personalisation of the recommendations.

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Key information

Conditions

Diabetes Mellitus, Type 2 Diabetes Mellitus Endocrine System Diseases Glucose Metabolism Disorders Metabolic Diseases Nutritional and Metabolic Diseases PreDiabetes Prediabetic State

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Charité Univesitätsmedizin Berlin

Berlin, State of Berlin, 12203, Germany

About this study

An inadequate diet and increasing sedentary lifestyle are major contributors to the rise of non-communicable diseases. Individualized recommendations can lead to a healthier lifestyle. The scientific evidence of the effectiveness of health apps offering personalized recommendations is limited.

The aim of this intervention pilot study within the scope of the EU-Horizon 2020 project is to investigate lifestyle support through a mobile app and wearables to improve lifestyle (personalised nutrition) and important metabolic outcomes in patients with type 2 diabetes or prediabetes. The Investigators want to asess whether the use of this mobile application that incorporates information of wearables (continuous glucose monitoring and fitness tracker), improves lifestyle and metabolic outcomes in patients with type 2 diabetes (T2D) or prediabetes. Our primary outcome is to improve time in range (TIR) by 5%.

It is a prospective randomized control pilot trial with an intervention period of 12 weeks. Participants will use the Protein app, a continuous glucose monitoring system (CGM) and an activity tracker to collect real world data to enable personalisation.

In order to identify the effect of the PROTEIN-Application, 300 participants with T2DM or prediabetes will be randomly allocated into two groups: the (1) start-group or the (2) wait-group. The start-group will use an activity tracker, a CGM and the PROTEIN app for 12 weeks followed by a six-week period without the app, but they will use the wearables. The wait-group will use an activity tracker and a CGM, but not the PROTEIN app for six weeks followed by a period of 12 weeks using the PROTEIN app. This study design allowed us to have a control group within the whole cohort and clearly see the influence of the PROTEIN app.

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • ≥ 18 years of age
  • Diabetes Type 2 or Prediabetes
  • BMI: 20-kg kg/m2
  • Android Smart Phone/ Tablet use
  • In good physical health
  • Able to provide written informed consent

Exclusion criteria

  • Severe endocrine, gastrointestinal, metabolic, cardiovascular, pulmonary, inflammatory or psychiatric disorder
  • Active or recent relevant cancer
  • Currently receiving treatment with Insulin
  • People with disordered eating (such as anorexia nervosa etc.)
  • Those who are not be able to provide written consent

Treatment and study plan

Usage of the PROTEIN-Application

Other

Participants were randomly distributed into 2 groups: (1) Start-Group used the developed Application and wereables to investigate the effect of this support. Participants used the devices and the App for 3 Months followed by a 6-Weeks time of only using wereables and no app, to be able to compare the effects of the Application. (2) The Wait-Group used wereables for 6 Weeks before adding the Protein-App for also 3 Months.

Primary outcomes

  1. Improvement of Time In Range (TIR) by 5%

    Time frame: 12 Weeks

    Our primary objective is to increase the time in range (TIR) of the study participants by 5%

  2. Improve eating behavior towards healthier choices

    Time frame: 12 Weeks

    Improve eating behaviour towards healthier choices during the intervention time

Secondary outcomes

  1. Adherence to dietary recommendations of the app

    Time frame: 12 Weeks

    Adherence to dietary recommendations of the PROTEIN-App

  2. Improvement of glycaemic metabolism

    Time frame: 12 Weeks

    Fasting glucose, HbA1c, HOMA-IR

  3. Reduction in sedentary time

    Time frame: 12 Weeks

    Reduction in sedentary time, defined as: Activity time through fitness trackers or increase in physical activity or increase in steps per day

  4. Aproximation of the energy intake

    Time frame: 12 Weeks

    Approximation of the energy intake (calorie intake and distribution of macronutrients) towards the agreed goals

  5. Measurable change in the faecal microbiome

    Time frame: 12 Weeks

    Measurable change in the faecal microbiome by extraction of DNA and its analysis to identify the relevant species of bacteria

  6. Calculation of the Polygenic Risk Score

    Time frame: 12 Weeks

    Calculation of the Polygenic Risk Score by Isolation of DNA from whole blood

Sponsors and collaborators

Lead sponsor

Prof. Dr. med. Andreas F. H. Pfeiffer

Other

Collaborators

  • European Union

Registry information

Official study title

Personalised Nutrition for Healthy Living: PROTEIN

Acronym: PROTEIN

Important dates

Study start
2020
Primary completion
2022
Study completion
2022
First posted
Jul 18, 2023
Registry last updated
May 7, 2026

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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