Behavioural change for cancer prevention: A pilot study protocol of a digital intervention
| ISRCTN | ISRCTN17870921 |
|---|---|
| DOI | https://doi.org/10.1186/ISRCTN17870921 |
| ClinicalTrials.gov (NCT) | Nil known |
| Clinical Trials Information System (CTIS) | Nil known |
| Protocol serial number | Horizon Mission Cancer grant no. 101136840 |
| Sponsors | Institut Català d'Oncologia (ICO), European Institute of Oncology, Carol Davila University of Medicine and Pharmacy |
| Funder | European Health and Digital Executive Agency |
- Submission date
- 28/08/2025
- Registration date
- 15/10/2025
- Last edited
- 15/10/2025
- Recruitment status
- Recruiting
- Overall study status
- Ongoing
- Condition category
- Cancer
Plain English summary of protocol
Background and study aims
Cancer remains a major global health challenge, with over 20 million new cases annually. Many cancer cases, especially lung, colorectal, and breast, are linked to modifiable risk factors such as smoking, poor diet, alcohol use, obesity, and inactivity. Psychosocial factors like stress and anxiety also contribute, making Behavioural Change (BC) and Emotional Management (EM) essential strategies for prevention.
To address these risks, the iBeChange pilot study aims to deliver a digital platform that promotes BC and EM through personalised, adaptive interventions. These are supported by AI-powered eHealth tools, which offer tailored feedback and guidance based on individual data. The platform uses a stepped-care model, providing automated support for most users and reserving professional help for those with greater needs.
A wearable sub-study is included to explore the feasibility and benefits of passive, non-intrusive health monitoring. Some participants will use the Oura smart ring, chosen for its discreet design, biometric accuracy, long battery life, and GDPR-compliant data security. These devices collect continuous data on health, emotions, and lifestyle, aiming to reduce participant burden and improve adherence. The sub-study will assess whether wearable users show greater behavioural and psychosocial improvements compared to non-users. By integrating wearable data with questionnaire responses, the sub-study seeks to enhance risk detection and support more effective, personalised interventions.
Ultimately, the project combines digital innovation, emotional support, and behavioural science to create a scalable, user-friendly solution for primary cancer prevention across Europe.
Who can participate?
Otherwise healthy individuals who are at age risk for breast cancer (women aged 45-70 years), colorectal cancer (individuals aged 50-70 years) or lung cancer (individuals aged 50-80 years) and have participated in a screening test for breast, colorectal or lung cancer
What does the study involve?
Individuals who agree to participate in this study will be randomly assigned to one of two research groups:
A) to the control group, where they will receive a printed document with general lifestyle recommendations for cancer prevention;
or
B) to the experimental group, where they will receive access to the iBeChange mobile application that has a scaled and personalised digital behaviour change intervention for 12 weeks.
In addition, regardless of the group assigned to, participants will have to answer a series of online questionnaires (that will be received through a link on their personal email to access them) to determine their lifestyle habits in health areas at the beginning and at the end of the study, 12 weeks later. Those participants assigned to the experimental group will, at the end, also have to answer questions about their experience with the use of this application.
If randomly assigned to the experimental group, participants will be asked to download an application on their mobile phone, the iBeChange platform. At the start, the app will ask participants to answer questions to know about their habits (smoking, alcohol consumption, nutrition, physical exercise), their emotional state, and their context for achieving healthier lifestyle habits. The iBeChange app will guide participants every step of the way to achieve habit change through missions, and by providing personalised recommendations and resources. Periodically, the app will ask participants to answer questions to track their progress in changing their habits and their emotional state.
Within the application, and if deemed necessary and if participants meet the criteria for adherence to the intervention, they can write messages to a professional to resolve any doubts they may have, and even access pre-arranged video calls with a professional, to help them in the process of adopting healthier lifestyle habits and improving their wellbeing. Also, if they are randomly assigned to the experimental group, they may be invited to participate in a sub-study to integrate smart rings in the iBeChange digital solution under a separate informed consent form.
What are the possible benefits and risks of participating?
Those in the experimental group will benefit from closer monitoring of their health habits and psychosocial care, along with support from a health professional when needed during the study. If assigned to the control group, participants will be able to have detailed information about their health habits and emotional well-being.
This pilot study is of minimal risk due to its non-invasive nature. The administration of online questionnaires and the use of a mobile application to promote behaviour change have no risk of complications. The maximum number of questions to be answered is 156 with an estimated response time of 75 minutes.
Where is the study run from?
Catalan Oncology Institute (ICO) is leading the clinical studies of the iBeChange project on behalf of the iBeChange consortium, and coordinates and supervises the training and activity in all three recruitment centres (ICO, Barcelona, European Institute of Oncology (IEO), Italy, and Carol Davila University of Medicine and Pharmacy (UMFCD), Romania).
When is the study starting and how long is it expected to run for?
July 2025 to March 2026
Who is funding the study?
This pilot study is part of the European project iBeChange: ‘Addressing psychosocial and lifestyle risk factors to promote primary cancer prevention: an integrated platform to promote behaviour change’, funded by the European Commission under a Horizon Mission Cancer grant.
Who is the main contact?
ibechange@iconcologia.net
Contact information
Public
Hospital Duran i Reynals
Granvia de l’Hospitalet 199-203
L’Hospitalet de Llobregat (Barcelona)
08908
Spain
 ORCID ID |
0000-0002-9609-2290 |
|---|---|
| Phone | +34 93 260 78 00 Ext. 3221 |
| agarcias@idibell.cat |
Scientific, Principal investigator
Institut Català d'Oncologia
Granvia de l’Hospitalet 199-203
L’Hospitalet de Llobregat (Barcelona)
08908
Spain
| ORCID ID |
0000-0001-5793-9906 |
|---|---|
| Phone | +34 93 260 78 00 Ext. 3221 |
| mariaserrab@iconcologia.net |
Principal investigator
Institut Català d'Oncologia
Granvia de l’Hospitalet 199-203
L'Hospitalet del Llobregat (Barcelona)
08908
Spain
| ORCID ID |
0000-0002-4508-0951 |
|---|---|
| Phone | +34 93 260 78 00 ext. 3821 |
| cochoa@iconcologia.net |
Study information
| Primary study design | Interventional |
|---|---|
| Study design | Multicenter interventional randomized pilot study |
| Secondary study design | Randomised controlled trial |
| Study type | Participant information sheet |
| Scientific title | Studying the feasibility of a 12-week stepped-care digital behavioural change intervention towards healthier lifestyle and emotional wellbeing habits for cancer prevention: A pilot study (iBeChange pilot study) |
| Study acronym | iBeChange pilot study - iBC/PS |
| Study objectives | The primary objective of this pilot study is to assess the feasibility of iBeChange. This digital behavioural change platform aims to address lifestyle and psychosocial risk factors associated with cancer risk in a personalised way. Additionally, preliminary data regarding the effectiveness and cost-effectiveness of iBeChange compared to general cancer prevention guidelines will be collected. Additionally, exploratory data will be collected from Oura smart rings from the allocated participants. Finally, usability and satisfaction will be assessed for the iBeChange platform and for the selected wearable devices. |
| Ethics approval(s) |
Approved 22/07/2025, Ethics Committee for Research with Medicines (CEIm) of Bellvitge University Hospital (C/Feixa Llarga, s/n, L'Hospitalet de Llobregat (Barcelona), 08907, Spain; 93 260 73 89; presidenciaceic@bellvitgehospital.cat), ref: PR101/25 |
| Health condition(s) or problem(s) studied | Prevention of lung, breast, and colorrectal cancer disease in the healthy at-risk age population |
| Intervention | This pilot study includes two randomisations, both carried out centrally using the REDCap platform. The first randomisation assigns subjects in a 1:1 ratio to the control and experimental groups, stratifying by participating centre. The second randomisation will be carried out on subjects from the experimental group who express their willingness to participate in the wearable sub-study by signing the dedicated ICF, assigning them in a 1:1 ratio to the Oura and non-Oura groups, stratified by participating centre. Participants will be randomly assigned to two different groups: the experimental group (EG), which will receive a digital stepped-care intervention (i.e., iBeChange; iBC), used as a smartphone application, and the control group (CG), which will receive the usual practice recommendations (UPR). The experimental intervention will last 12 weeks. Outcomes will be obtained at baseline and at the end of the intervention (12 weeks). |
| Intervention type | Behavioural |
| Primary outcome measure(s) |
The primary outcome measure of this pilot study is its feasibility, which will be assessed through the following variables: |
| Key secondary outcome measure(s) |
The following secondary outcome measures are the preliminary effectiveness and cost-effectiveness of iBeChange in achieving a sustainable behavioural change in smoking, alcohol consumption, nutrition, physical activity habits, and emotional well-being symptoms at baseline, and the end of the intervention (12 weeks), unless stated: |
| Completion date | 17/04/2026 |
Eligibility
| Participant type(s) | Population |
|---|---|
| Age group | Mixed |
| Lower age limit | 45 Years |
| Upper age limit | 80 Years |
| Sex | All |
| Target sample size at registration | 210 |
| Key inclusion criteria | 1. Ability to understand and voluntarily provide signed written informed consent approved by the study site’s Institutional Review Board (IRB). 2. Being at a high-risk age for breast (women between 45-70), colorectal (individuals between 50-70) or lung cancer (individuals aged 50-80 years). 3. Having participated in a test for early detection of cancer (i.e., mammography or ultrasound for breast cancer, faecal occult blood test (FOBT) or colonoscopy for colorectal cancer, and CT-scan for lung cancer) |
| Key exclusion criteria | 1. History of any prior or current personal cancer diagnosis. In the case of colorectal and breast cancer, this will be restricted to the pathology tested for screening. 2. Current severe disease that may significantly compromise the performance on the study according to the criteria of the investigator. 3. Not owning a smartphone. 4. For breast and colorectal cancer, participants undergoing screening for alert symptoms or family history of these cancer types (the latest are eligible for specific hereditary cancer programs). |
| Date of first enrolment | 13/10/2025 |
| Date of final enrolment | 16/01/2026 |
Locations
Countries of recruitment
- Italy
- Romania
- Spain
Study participating centres
L’Hospitalet de Llobregat (Barcelona)
08908
Spain
Milano
20141
Italy
București
020021
Romania
Results and Publications
| Individual participant data (IPD) Intention to share | Yes |
|---|---|
| IPD sharing plan summary | Stored in non-publicly available repository, Published as a supplement to the results publication |
| IPD sharing plan | The pseudonymised datasets generated during the current pilot study are planned to be stored in a non-publicly available repository (internal databases). The aggregated data results of the analysis of the current study will be published in a scientific, peer-reviewed publication. The data collected will be useful only for the development of the platform and its later validation through a larger randomized controlled trial. The Consortium will consider open availability based on utility and appropriate consents as the programme develops. |
Study outputs
| Output type | Details | Date created | Date added | Peer reviewed? | Patient-facing? |
|---|---|---|---|---|---|
| Participant information sheet | Participant information sheet | 11/11/2025 | 11/11/2025 | No | Yes |
Editorial Notes
28/08/2025: Study's existence confirmed by the Ethics Committee for Research with Medicines (CEIm) of Bellvitge University Hospital.
