The aim of this clinical trial is to find out whether CANVIA can help adults improve dietary and lifestyle habits related to cancer prevention. CANVIA is a personalised programme based on cancer prevention recommendations from the World Cancer Research Fund and the American Institute for Cancer Research (WCRF/AICR). The programme uses a short questionnaire, called the WCRF/AICR Screener, to give each participant personalised feedback. This study will include adults aged 50 to 69 years who take part in breast or colorectal cancer screening programmes in Palma, Mallorca, Spain. The study will assess whether participants can complete the CANVIA study procedures and use the programme for six months, whether the CANVIA app and, where applicable, the professional support are acceptable and easy to use, and whether there are early signs that CANVIA may help participants follow cancer prevention recommendations more closely. Before the pilot trial starts, a small first phase with about 20 to 30 participants will test the study procedures and the mobile app. After this, 132 participants will be assigned by chance to one of three groups. One group will receive only a personalised written report at the start of the study. A second group will use the CANVIA mobile app for six months. A third group will use the CANVIA mobile app and also receive support from health professionals for six months. Participants will complete study assessments at the start of the study, after three months and after six months. Participants in the app groups will receive personalised messages, educational resources and weekly goals or challenges. Some participants from the app groups will also be invited to take part in focus groups at the end of the study to share their experiences and suggestions.
Age range
50 Years – 69 Years
Sex
ALL
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Proportion of invited individuals enrolled and randomised
Timeframe: From invitation to baseline randomisation in the randomised pilot trial
Proportion of randomised participants retained at Month 3 and Month 6
Timeframe: Month 3 and Month 6
Proportion of expected outcome and covariate data completed
Timeframe: Baseline, Month 3 and Month 6
Proportion of scheduled study visits attended
Timeframe: Baseline, Month 3 and Month 6
Proportion of planned health professional support contacts attended
Timeframe: From baseline to Month 6
Number of technical incidents requiring study staff support
Timeframe: From baseline to Month 6
Mean overall score on the mHealth App Usability Questionnaire at Month 6
Timeframe: Month 6
Mean item scores on the adapted Research Participant Perception Survey-Long Form at Month 6
Timeframe: Month 6
Number of CANVIA mobile app logins or sessions per participant through Month 6
Timeframe: From baseline to Month 6
Number of active days in the CANVIA mobile app per participant through Month 6
Timeframe: From baseline to Month 6
Proportion of expected key in-app actions completed through Month 6
Timeframe: From baseline to Month 6