A Mobile App to Help Patients Prepare for Colon Cancer Screening Colonoscopy
Tests a phone app giving colonoscopy preparation instructions to adults aged 50 to 74.
Plain-language title generated from the registry record
Registry title: A Mobile Application to Improve the Quality of Colonoscopy in Colorectal Cancer Screening Program (PrepColon APP)
Key facts
- Where
- Valladolid, SpainSee the site
AI summary: who the study is looking for
From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.
The trial is looking for people in the colorectal cancer screening program who need a colonoscopy after a positive stool test (FIT). It tests a smartphone app that helps with colonoscopy preparation.
- Age
- 50 to 69 years old (the registry lists 50 to 74 years).
- Sex
- Men and women can join.
- Disease stage
- People from the colorectal cancer screening program with a stool blood test (FIT) result above 100ng/ml.
- Biomarker or test result
- FIT result above 100ng/ml.
Main reasons for not taking part
- Refusing to give informed consent
- No smartphone with Android 4.4 or iOS 14 or newer
- People with symptoms
- Higher risk of colorectal cancer because of family history or inherited polyposis disease
- Inflammatory bowel disease
Read by machine on 12 November 2026.
Could this be for you?
Answer for yourself. This is not a decision: only the study team can say whether you can take part.
- Are you between 50 and 74 years old?
Source: NCT06314022, who can take part
Where in Spain
- Hospital Universitario Rio HortegaValladolid, SpainContact: Henar NuñezTaking people
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Contact the study team: see the registry record → Contacts and Locations
Print a page for my doctorTrial details
- Who runs it
- Hospital del Rio Hortega
- Trial code
- NCT06314022
- Record updated
- 4 June 2026
- Original description
Colonoscopy is the gold standard for the diagnosis and resection of preneoplastic lesions, allowing the prevention of colon cancer. A colonoscopy is more efficient with proper preparation of the colon, as it allows for a higher rate of adenoma detection and cecal intubation. In routine practice, up to 30% of colonoscopies are poorly prepared and 11% of patients do not show up for their appointment. Adenomas not visualized in the initial colonoscopy due to poor preparation reached 68% and the rate of undetected cancers was 66.7%. A proper colon cleanse is conditioned by different factors; among them, failure to comply with the diet and take laxatives poses 5 times the risk of having a deficient colon preparation. The purpose of our study is the design and implementation of an app that facilitates the preparation of colonoscopy and evaluates its impact on compliance with diet and laxative intake.Read full original descriptionShow less
Design of a Mobile Application to Improve the Quality of Colonoscopy and Its Implementation in Colorectal Cancer Screening Program: a Randomized Multicenter Study (PrepColon APP Study)
Colonoscopy is the gold standard for the diagnosis and resection of preneoplastic lesions, allowing the prevention of colon cancer. A colonoscopy is more efficient with proper preparation of the colon, as it allows for a higher rate of adenoma detection and cecal intubation. In routine practice, up to 30% of colonoscopies are poorly prepared and 11% of patients do not show up for their appointment. Adenomas not visualized in the initial colonoscopy due to poor preparation reached 68% and the rate of undetected cancers was 66.7%. A proper colon cleanse is conditioned by different factors; among them, failure to comply with the diet and take laxatives poses 5 times the risk of having a deficient colon preparation. The purpose of our study is the design and implementation of an app that facilitates the preparation of colonoscopy and evaluates its impact on compliance with diet and laxative intake.
Inclusion: -Subjects between 50-69 years old from the CRC screening program with FIT (>100ng/ml); Informed consent granted in writing.
Exclusion: Subjects at elevated risk of CRC due to family history or inherited polyposis diseases or inflammatory bowel disease; Refusal to give informed consent; Those who do not have a smartphone with a minimum version of the operating system (Android 4.4 or iOS 14, which cover more than 99% of the terminals in use); Symptomatic patients.