NCT07269028

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

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
248

participants targeted

Target at P50-P75 for not_applicable colorectal-cancer

Timeline
Completed

Started May 2023

Geographic Reach
1 country

1 active site

Status
completed

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

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2024

Completed
11 months until next milestone

First Submitted

Initial submission to the registry

November 25, 2025

Completed
13 days until next milestone

First Posted

Study publicly available on registry

December 8, 2025

Completed
Last Updated

December 8, 2025

Status Verified

November 1, 2025

Enrollment Period

1.6 years

First QC Date

November 25, 2025

Last Update Submit

November 25, 2025

Conditions

Keywords

Colo-rectal cancerPreventioneHealthGamification

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

EXPERIMENTAL
Other: Gamified Mobile App

Control

NO INTERVENTION

Interventions

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.

Intervention

Eligibility Criteria

Age50 Years - 51 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

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

Location

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: 25701273BACKGROUND
  • Wallston 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: 689890BACKGROUND
  • Duan 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: 33616534BACKGROUND
  • Sequi-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: 32865503BACKGROUND
  • Mohamad 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: 30990454BACKGROUND
  • Hammedi, 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).

    BACKGROUND
  • Rotter, J. B. (1954). Social learning and clinical psychology. Prentice-Hall, Inc

    BACKGROUND
  • Roberto 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: 32546834BACKGROUND
  • Gabel 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: 33170877BACKGROUND
  • Stacey 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: 28402085BACKGROUND
  • Elwyn 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: 19922647BACKGROUND
  • O'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: 14512487BACKGROUND
  • Sung 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

Colonic Neoplasms

Condition Hierarchy (Ancestors)

Colorectal NeoplasmsIntestinal NeoplasmsGastrointestinal NeoplasmsDigestive System NeoplasmsNeoplasms by SiteNeoplasmsDigestive System DiseasesGastrointestinal DiseasesColonic DiseasesIntestinal Diseases

Study Officials

  • Cristina Montomoli

    University of Pavia

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
SCREENING
Intervention Model
PARALLEL
Model Details: Randomized Clinical Trial
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

Locations