Clinical trial Recruiting at 1 site Interventional Ages 50 to 69

Preferences and experiences with colorectal cancer screening methods

Official title: Exploring Participant Preference for Screening Methods and Experience Into Colorectal Cancer Screening Programme

Run by Advanced Marker Discovery S.l. · NCT06696534 · Data updated 2026-11-12

This test asks people aged 50–69 who completed a stool (FOBT) screen to share which colorectal cancer screening methods they prefer and how they experienced the screening program.

Quick facts

Study typeInterventional
Ages50 Years to 69 Years
SexAll
Enrollment1000 (estimated)
SponsorAdvanced Marker Discovery S.l.
Industry-sponsored
Locations2 sites (Lisbon and 1 other locations)
StatusRecruiting
StartedMay 19, 2025
Main results expectedNovember 2025
Study endsDecember 2025
Registry record updatedOctober 2, 2025
Trial IDNCT06696534 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are asymptomatic adults aged 50–69 invited to the local population-based screening program who have delivered a stool (FOBT) sample and can give informed consent.

Probably not a fit

People who have not provided a stool sample, who previously had a colonoscopy because of a positive FOBT, who are outside the 50–69 age range, symptomatic, or in a dependent relationship with the investigators or sponsor are unlikely to benefit from participation.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This low-risk interventional project invites adults aged 50–69 participating in a population-based colorectal screening program to complete two questionnaires about their screening experience and method preferences after undergoing a fecal occult blood test (FOBT). Participants provide informed consent and relevant clinical information from the screening visit is shared with study staff for analysis. Surveys are administered at participating primary care centers in Lisbon and Madrid to capture values, preferences, and reported experiences. Results will be analyzed to identify patterns that could inform how screening options and communications are offered to patients.

Why it matters

Potential benefit: If successful, the results could help programs offer screening methods and communications that better match patient preferences, potentially increasing participation and satisfaction.

How similar studies have gone: Questionnaire-based studies in colorectal screening programs have previously identified patient preferences that informed program design, so the approach is established though results vary by population.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Participants ages from 50 to 69 years (both included) at the time of informed consent signed.
* Participants invited to participate in population-based screening programme who are eligible to undertake FOBT at the Primary Health Care Center.
* Participants should sign an informed consent. They must understand the nature, significance, implications, and risks of the clinical study before signing the informed consent form.

Exclusion Criteria:

* Participants who have not delivery a stool sample in the Primary Health Care Center before signing the informed consent form.
* Participants with a previous colonoscopy in consequence of a FOBT positive result.
* Participants who are in a dependent personal or non-medical relationship with the Sponsor or the Investigators.

Where it's running

  • CS Mar Báltico
    Madrid, Madrid, Spain
    Recruiting
  • UCSP Sete Rios
    Lisbon, Portugal
    Not yet recruiting

Study contacts

  • Principal investigator: Maria A Perez, MD — Primary Health Care Centre Mar Báltico
  • Study coordinator: Marta Jimenez, PhD
  • Email: mjimenez@amadix.com
  • Phone: +34 637899149

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.