A new technique for removing colonic polyps

The Cap-Assisted Resection Margin Assessment (CARMA) Technique After Polyp Resection: a Prospective Feasibility Study of a "Novel" Approach to Reduce Polyp Recurrence

NA · Princess Alexandra Hospital, Brisbane, Australia · NCT05099432

This study tests a new method for removing colon polyps to see if it helps doctors get rid of them more completely and reduce the chances of them coming back.

Quick facts

PhaseNA
Study typeInterventional
Enrollment60 (estimated)
Ages16 Years and up
SexAll
SponsorPrincess Alexandra Hospital, Brisbane, Australia (other)
Locations1 site (Woolloongabba, Queensland)
Trial IDNCT05099432 on ClinicalTrials.gov

What this trial studies

This study evaluates the Cap Assisted Resection Margin Assessment (CARMA) technique, which aims to improve the removal of colonic polyps by ensuring a clear margin during endoscopic procedures. The technique utilizes high-definition video endoscopes with advanced imaging features to standardize the assessment of resection margins after polypectomy. By addressing the issue of incomplete polyp resection, the CARMA technique seeks to reduce polyp recurrence rates and the associated risk of interval cancers.

Who should consider this trial

Good fit: Ideal candidates for this study are patients with colonic polyps who require polypectomy.

Not a fit: Patients with small polyps under 10mm or those with specific exclusion criteria such as pedunculated polyps or evidence of invasion may not benefit from this study.

Why it matters

Potential benefit: If successful, this technique could significantly lower the rates of colorectal cancer by ensuring more complete removal of polyps.

How similar studies have performed: While the CARMA technique is a novel approach, similar studies focusing on improved polyp resection techniques have shown promise in enhancing outcomes.

Eligibility criteria

Show full inclusion / exclusion criteria
Patients with colonic polyps will be considered following below criteria

Inclusion Criteria:

\- any polypectomy (though only a maximum of two polyps from one individual participant)

Exclusion Criteria:

* polyps less than 10mm which were resected under endoscopic view with a definite \> 1mm clear margin
* scar site recurrence polyps
* polyps with endoscopic evidence of invasion
* pedunculated polyps
* pseudopolyps
* participants who will not be available for follow up endoscopy

Where this trial is running

Woolloongabba, Queensland

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Colonic Polyp, Colonic Sessile Serrated Lesion

Last reviewed 2026-05-15 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.