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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT05099432
Registration number
NCT05099432
Ethics application status
Date submitted
18/10/2021
Date registered
29/10/2021
Titles & IDs
Public title
The CARMA Technique Study
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Scientific title
The Cap-Assisted Resection Margin Assessment (CARMA) Technique After Polyp Resection: a Prospective Feasibility Study of a "Novel" Approach to Reduce Polyp Recurrence
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Secondary ID [1]
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75076
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Colonic Polyp
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Colonic Sessile Serrated Lesion
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Condition category
Condition code
Other
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Research that is not of generic health relevance and not applicable to specific health categories listed above
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Oral and Gastrointestinal
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Other diseases of the mouth, teeth, oesophagus, digestive system including liver and colon
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Cancer
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0
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Bowel - Back passage (rectum) or large bowel (colon)
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Treatment: Surgery - CARMA technique
Experimental: CARMA Technique - All included participants undergo polyp resection using standard of care polypectomy techniques, followed by the CARMA technique
Treatment: Surgery: CARMA technique
Once standard polyp resection and assessment of the polypectomy site without magnification is completed, the CARMA technique will be applied. This will involve an assessment of the entire polypectomy margin using cap assisted magnification endoscopy with the ability to also use NBI (at the endoscopist's discretion) and documentation of any residual polyp noted.
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Intervention code [1]
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Treatment: Surgery
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Rate of achieving a clear resection margin using the CARMA technique
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Assessment method [1]
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Timepoint [1]
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Established during index procedure
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Secondary outcome [1]
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Sensitivity and specificity of the CARMA technique for residual polyp detection
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Assessment method [1]
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Timepoint [1]
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Established during index procedure
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Secondary outcome [2]
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Frequency of residual polyp without CARMA assessment
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Assessment method [2]
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Timepoint [2]
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Established during index procedure
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Secondary outcome [3]
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Incomplete resection rate with use of CARMA technique
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Assessment method [3]
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Timepoint [3]
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Established during index procedure
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Secondary outcome [4]
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Incomplete resection rate with use of the CARMA technique in polyps > 10mm with hot snare
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Assessment method [4]
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Timepoint [4]
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Established during index procedure
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Secondary outcome [5]
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Incomplete resection rate with use of the CARMA technique in polyps > 10mm with cold snare
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Assessment method [5]
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Timepoint [5]
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Established during index procedure
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Secondary outcome [6]
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Residual polyp rate after CARMA technique with hot snare
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Assessment method [6]
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Timepoint [6]
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Established during index procedure
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Secondary outcome [7]
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Residual polyp rate after CARMA technique with cold snare
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Assessment method [7]
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Timepoint [7]
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Established during index procedure
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Secondary outcome [8]
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Time required for application of the CARMA technique with < 10mm
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Assessment method [8]
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Timepoint [8]
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Established during index procedure
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Secondary outcome [9]
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Time required for application of the CARMA technique with > 10mm
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Assessment method [9]
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Timepoint [9]
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Established during index procedure
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Secondary outcome [10]
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Polyp recurrence rate for < 10mm polyps
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Assessment method [10]
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Timepoint [10]
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Established during surveillance procedure (following national guidelines - between 6 months to 5 years)
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Secondary outcome [11]
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Polyp recurrence rate for > 10mm polyps
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Assessment method [11]
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Timepoint [11]
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Established during surveillance procedure (following national guidelines - between 6 months to 5 years)
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Eligibility
Key inclusion criteria
Patients with colonic polyps will be considered following below criteria
- any polypectomy (though only a maximum of two polyps from one individual participant)
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Minimum age
16
Years
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key 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
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Study design
Purpose of the study
Treatment
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Allocation to intervention
NA
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Open (masking not used)
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Who is / are masked / blinded?
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Intervention assignment
Single group
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Other design features
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Phase
NA
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Recruiting
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
1/11/2021
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Actual
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
1/11/2026
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Actual
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Sample size
Target
60
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
QLD
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Recruitment hospital [1]
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Princess Alexandra Hospital - Woolloongabba
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Recruitment postcode(s) [1]
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4102 - Woolloongabba
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Funding & Sponsors
Primary sponsor type
Other
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Name
Princess Alexandra Hospital, Brisbane, Australia
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Address
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Country
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Ethics approval
Ethics application status
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Summary
Brief summary
Colonoscopic removal of polyps is an important and well-established tool in the prevention of colorectal cancers. However, high polyp recurrence rates after endoscopic resection, with resultant development of interval cancers, remains a problem; this most commonly stems from unrecognised incomplete polyp resection. Thus, a standardised endoscopic technique is needed that will allow endoscopists to consistently achieve a clear margin of resection. The investigators believe the Cap Assisted Resection Margin Assessment (CARMA) technique will address this problem. This novel technique focuses on a standardised assessment of the resection margin after endoscopic polypectomy utilising available standard high-definition video endoscopes with imaging features including narrow band imaging (NBI) and magnification endoscopy.
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Trial website
https://clinicaltrials.gov/study/NCT05099432
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Alexander Huelsen, MD
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Address
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Princess Alexandra Hospital
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Alexander Huelsen, MD
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Address
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Country
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Phone
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+61 7 3176 2111
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Fax
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Email
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[email protected]
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Contact person for scientific queries
Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
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No/undecided IPD sharing reason/comment
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What supporting documents are/will be available?
No Supporting Document Provided
Type
Other Details
Attachment
Study protocol
Study Protocol and Statistical Analysis Plan
https://cdn.clinicaltrials.gov/large-docs/32/NCT05099432/Prot_SAP_000.pdf
Statistical analysis plan
Study Protocol and Statistical Analysis Plan
https://cdn.clinicaltrials.gov/large-docs/32/NCT05099432/Prot_SAP_000.pdf
Informed consent form
https://cdn.clinicaltrials.gov/large-docs/32/NCT05099432/ICF_001.pdf
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results not provided in
https://clinicaltrials.gov/study/NCT05099432