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Clinical trial Recruiting at 3 sites Observational Ages 18 and up

Evaluating a new method to improve decision making in cancer care

Official title: The 4D PICTURE Project - Design-based Data-driven Decision-support Tools: Producing Improved Cancer Outcomes Through User-Centered Research

Run by Leiden University Medical Center · NCT06685562 · Data updated 2026-11-12

This study is testing a new approach called MetroMapping to see if it helps patients with breast, prostate, and melanoma cancers make better decisions about their treatment.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment500 (estimated)
SponsorLeiden University Medical Center
Academic / other
Locations3 sites (Vejle and 2 other locations)
StatusRecruiting
StartedDecember 20, 2023
Main results expectedMay 20, 2026
Study endsMay 20, 2026
Registry record updatedNovember 12, 2024
Trial IDNCT06685562 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include adults over 18 years old diagnosed with breast cancer, prostate cancer, or melanoma.

Probably not a fit

Patients who do not speak Dutch, Danish, Spanish, or Catalan may not benefit from this study.

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

What this trial studies

This observational study aims to assess the effectiveness of MetroMapping, a service design methodology, in enhancing Shared Decision Making among patients with breast, prostate, and melanoma cancers. The study will enroll 500 adult participants across the Netherlands, Spain, and Denmark, who will be involved in a pre- and posttest evaluation. Researchers will audio-record and transcribe consultations to gain insights into patient experiences and the impact of the MetroMapping approach on their decision-making processes. The goal is to streamline cancer care paths and reduce the overwhelming nature of treatment decisions.

Why it matters

Potential benefit: If successful, this approach could significantly improve patient engagement and satisfaction in cancer treatment decisions.

How similar studies have gone: While the specific application of MetroMapping in oncology is novel, similar methodologies have shown promise in enhancing patient decision-making in other healthcare contexts.

Who can join: the full rules

Show full inclusion / exclusion criteria 
Inclusion Criteria:

* Adult (\>18 years) (either being the patient or the informal caregiver in the care path)
* Prostate cancer, breast cancer or melanoma cancer
* Able to provide consent
* Able to speak Dutch, Danish, Spanish, Catalan

Exclusion Criteria:

A potential subject who does not meet any of the above criteria will be excluded from participation in this study. There are no further specified exclusion criteria.

Where it's running

  • Sygehus Lillebaelt
    Vejle, Denmark     Recruiting
  • Leiden University Medical Center
    Leiden, Netherlands     Recruiting
  • Miguel Servet University Hospital
    Zaragoza, Spain     Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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.
View on ClinicalTrials.gov ↗ Find more trials like this →
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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.