Clinical trial Recruiting at 3 sites Interventional Ages 18 and up

Comparing selective imaging methods to routine imaging for suspected appendicitis

Official title: Protocol Based Selective Imaging Versus Routine Computed Tomography or Ultrasound in Suspected Appendicitis (PROSECCO)

Run by Helsinki University Central Hospital · NCT06083064 · Data updated 2026-11-12

This study is testing if using specific imaging methods based on symptoms can help adults suspected of having appendicitis get better care compared to standard imaging methods.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment900 (estimated)
SponsorHelsinki University Central Hospital
Academic / other
Locations3 sites (Espoo and 2 other locations)
StatusRecruiting
StartedNovember 15, 2023
Main results expectedMay 31, 2027
Study endsMay 31, 2029
Registry record updatedSeptember 18, 2026
Trial IDNCT06083064 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adult patients who present with symptoms suggestive of appendicitis.

Probably not a fit

Patients who have had imaging done within the last 72 hours or those with other clinical conditions that require imaging 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 clinical trial aims to evaluate the effectiveness of protocol-based selective imaging compared to routine imaging methods in adult patients suspected of having appendicitis. Participants will be randomly assigned to one of three groups: one receiving selective imaging based on the Adult Appendicitis Score, another undergoing selective observation combined with imaging, and a third group receiving routine imaging via ultrasound or CT. The study will assess whether these selective approaches lead to better clinical outcomes, such as reducing the number of unnecessary appendectomies or complications. The goal is to determine if a more tailored imaging strategy can improve patient care.

Why it matters

Potential benefit: If successful, this study could lead to more accurate diagnoses and fewer unnecessary surgeries for patients with suspected appendicitis.

How similar studies have gone: Other studies have shown promise in using selective imaging approaches, suggesting potential benefits in reducing unnecessary procedures.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

\- Suspicion of appendicitis

Exclusion Criteria:

* Time from symptom onset over 72 hours
* Age \<18 years
* Pregnancy, ruled out by serum or urine HCG measurement in 18- to 49-year-old women
* CT-scan or ultrasound already done within the last 3 days (72 hours)
* Clinical suspicion of other disease or other reason to perform imaging study
* Recruited earlier to the same trial

Where it's running

  • HUS, Jorvi Hospital
    Espoo, Finland
    Recruiting
  • HUS, Meilahti Hospital
    Helsinki, Finland
    Recruiting
  • HUS, Hyvinkää Hospital
    Hyvinkää, Finland
    Recruiting

Study contacts

  • Principal investigator: Panu Mentula, MD — Helsinki University Central Hospital
  • Study coordinator: Panu Mentula, MD
  • Email: panu.mentula@hus.fi
  • Phone: 504270183

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.
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.