Personalised and Gamification-based Decision Aid (DA): a Randomized Controlled Pilot Study About Colorectal Cancer (CRC) Screening
DA-CRC
1 other identifier
interventional
248
1 country
1
Brief Summary
Colorectal cancer (CRC) is the second leading cause of cancer-related mortality worldwide, accounting for approximately 903,000 deaths annually. While population-based screening programmes have demonstrated effectiveness in enhancing early detection and reducing mortality, participation rates remain suboptimal. Adherence is influenced by cognitive, psychological, and socioeconomic barriers. This study aimed to assess the impact of a digital decision aid (DA), incorporating personalisation and gamification elements, on informed decision-making and adherence to CRC screening. DA-CRC is a two-arm randomised controlled pilot trial. Individuals born in 1973-1974 living in the area served by the local health authority of Brescia (Northern Italy) who were invited for the first time to participate in the CRC screening programme, were eligible. An invitation letter, including instructions to download the PREVenGO app, was mailed to potential participants. Upon download, participants were randomised to either the intervention or control arm. The intervention app included questionnaires on family history, knowledge of primary and secondary prevention, and locus of control (LoC), as well as gamification and reward features. The control app provided static educational content only. Notifications prompted users to complete follow-up assessments at 3 months (T1) and 6 months (T2), receive prevention information, and attend screening.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable colorectal-cancer
Started May 2023
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
May 15, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
December 31, 2024
CompletedFirst Submitted
Initial submission to the registry
November 25, 2025
CompletedFirst Posted
Study publicly available on registry
December 8, 2025
CompletedDecember 8, 2025
November 1, 2025
1.6 years
November 25, 2025
November 25, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Awareness
Informed choice, using the three-dimensional model by Marteau, including: Knowledge (minimum score 7/13); Attitude (score \>24); Behavioural intention (actual participation).
From enrollment to 6 months
Secondary Outcomes (3)
Uptake of CRC screening
From enrollment to 31st December 2024
Knowledge of primary prevention and healthy behaviours,
From enrollment to 6 months
Decisional conflict, user satisfaction, and app acceptability
From enrollment to 6 months
Study Arms (2)
Intervention
EXPERIMENTALControl
NO INTERVENTIONInterventions
The intervention app included questionnaires on family history, knowledge of primary and secondary prevention, and locus of control (LoC), as well as gamification and reward features.
Eligibility Criteria
You may qualify if:
- Stable residence within one of the municipalities served by Brescia LHA;
- Ownership of a smartphone (Android or iOS);
- Proficiency in the Italian language;
- Provision of informed consent within the PREVenGO app.
You may not qualify if:
- Failure to provide informed consent.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Agenzia per la Tutela della Salute (ATS) di Brescia
Brescia, Brescia, 25123, Italy
Related Publications (13)
Hersch J, Barratt A, Jansen J, Irwig L, McGeechan K, Jacklyn G, Thornton H, Dhillon H, Houssami N, McCaffery K. Use of a decision aid including information on overdetection to support informed choice about breast cancer screening: a randomised controlled trial. Lancet. 2015 Apr 25;385(9978):1642-52. doi: 10.1016/S0140-6736(15)60123-4. Epub 2015 Feb 18.
PMID: 25701273BACKGROUNDWallston KA, Wallston BS, DeVellis R. Development of the Multidimensional Health Locus of Control (MHLC) Scales. Health Educ Monogr. 1978 Spring;6(2):160-70. doi: 10.1177/109019817800600107.
PMID: 689890BACKGROUNDDuan Y, Shang B, Liang W, Du G, Yang M, Rhodes RE. Effects of eHealth-Based Multiple Health Behavior Change Interventions on Physical Activity, Healthy Diet, and Weight in People With Noncommunicable Diseases: Systematic Review and Meta-analysis. J Med Internet Res. 2021 Feb 22;23(2):e23786. doi: 10.2196/23786.
PMID: 33616534BACKGROUNDSequi-Dominguez I, Alvarez-Bueno C, Martinez-Vizcaino V, Fernandez-Rodriguez R, Del Saz Lara A, Cavero-Redondo I. Effectiveness of Mobile Health Interventions Promoting Physical Activity and Lifestyle Interventions to Reduce Cardiovascular Risk Among Individuals With Metabolic Syndrome: Systematic Review and Meta-Analysis. J Med Internet Res. 2020 Aug 31;22(8):e17790. doi: 10.2196/17790.
PMID: 32865503BACKGROUNDMohamad Marzuki MF, Yaacob NA, Bin Yaacob NM, Abu Hassan MR, Ahmad SB. Usable Mobile App for Community Education on Colorectal Cancer: Development Process and Usability Study. JMIR Hum Factors. 2019 Apr 16;6(2):e12103. doi: 10.2196/12103.
PMID: 30990454BACKGROUNDHammedi, W., Leclerq, T. & Van Riel, A. C. R. The use of gamification mechanics to increase employee and user engagement in participative healthcare services: A study of two cases. J. Serv. Manag. 28, 640-661 (2017).
BACKGROUNDRotter, J. B. (1954). Social learning and clinical psychology. Prentice-Hall, Inc
BACKGROUNDRoberto A, Colombo C, Candiani G, Satolli R, Giordano L, Jaramillo L, Castagno R, Mantellini P, Falini P, Carnesciali E, Valenza M, Costa L, Campari C, Caroli S, Faggiano RC, Orione L, Belmessieri B, Marchio V, Deandrea S, Silvestri A, Luciano D, Paci E, Mosconi P. A dynamic web-based decision aid to improve informed choice in organised breast cancer screening. A pragmatic randomised trial in Italy. Br J Cancer. 2020 Sep;123(5):714-721. doi: 10.1038/s41416-020-0935-2. Epub 2020 Jun 17.
PMID: 32546834BACKGROUNDGabel P, Larsen MB, Edwards A, Kirkegaard P, Andersen B. Effectiveness of a decision aid for colorectal cancer screening on components of informed choice according to educational attainment: A randomised controlled trial. PLoS One. 2020 Nov 10;15(11):e0241703. doi: 10.1371/journal.pone.0241703. eCollection 2020.
PMID: 33170877BACKGROUNDStacey D, Legare F, Lewis K, Barry MJ, Bennett CL, Eden KB, Holmes-Rovner M, Llewellyn-Thomas H, Lyddiatt A, Thomson R, Trevena L. Decision aids for people facing health treatment or screening decisions. Cochrane Database Syst Rev. 2017 Apr 12;4(4):CD001431. doi: 10.1002/14651858.CD001431.pub5.
PMID: 28402085BACKGROUNDElwyn G, Frosch D, Rollnick S. Dual equipoise shared decision making: definitions for decision and behaviour support interventions. Implement Sci. 2009 Nov 18;4:75. doi: 10.1186/1748-5908-4-75.
PMID: 19922647BACKGROUNDO'Connor AM, Legare F, Stacey D. Risk communication in practice: the contribution of decision aids. BMJ. 2003 Sep 27;327(7417):736-40. doi: 10.1136/bmj.327.7417.736.
PMID: 14512487BACKGROUNDSung H, Ferlay J, Siegel RL, Laversanne M, Soerjomataram I, Jemal A, Bray F. Global Cancer Statistics 2020: GLOBOCAN Estimates of Incidence and Mortality Worldwide for 36 Cancers in 185 Countries. CA Cancer J Clin. 2021 May;71(3):209-249. doi: 10.3322/caac.21660. Epub 2021 Feb 4.
PMID: 33538338BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Cristina Montomoli
University of Pavia
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- SCREENING
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Full Professor
Study Record Dates
First Submitted
November 25, 2025
First Posted
December 8, 2025
Study Start
May 15, 2023
Primary Completion
December 31, 2024
Study Completion
December 31, 2024
Last Updated
December 8, 2025
Record last verified: 2025-11