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Not yet recruitingNCT06791616Updated Jan 24, 2025

Surveillance Intervals After Piecemeal Resection of Non-pedunculated Colorectal Lesions ≥20mm

An interventional study of Colonoscopy in Colorectal Neoplasms, Adenoma Colon and Colonic Polyps, sponsored by Asociación Española de Gastroenterología. Not yet recruiting. Open to participants aged 18 Years to 85 Years. Per ClinicalTrials.gov, last updated 2025-01-24.

Sponsored by Asociación Española de Gastroenterología · Not applicable, Interventional, and Other

Phase
Not applicable
Study type
Interventional
Enrollment
746
Allocation
Randomized
Ages
18 Years to 85 Years
Sex
All
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Study summary

Intensive endoscopic surveillance following piecemeal resection of non-pedunculated colorectal lesions (NPCL) ≥20 mm is the current standard of care, given the high recurrence rate of these lesions (15-30%). However, most recurrences are detected at 12 months, are small and unifocal, and can be easily resected endoscopically. Furthermore, thermal margin ablation has demonstrated a reduction in recurrence rates to 5-6%, highlighting the need to optimize current surveillance protocols, which are costly, invasive, and impose a significant clinical burden.

The multicenter SCARFACE clinical trial aims to evaluate whether a reduced surveillance protocol (at 12 and 48 months) is non-inferior to the standard protocol (at 6, 12, and 48 months) in terms of recurrence rates, using a predefined non-inferiority margin. This non-inferiority design aims to determine if the reduced protocol maintains acceptable efficacy while reducing clinical workload and minimizing risks and discomfort associated with intensive follow-up.

Patients will be randomized in a 1:1 ratio into the two surveillance protocols, with an estimated sample size of 746 lesions. The primary objective is to compare the cumulative incidence of recurrence at 12 months. Secondary objectives include characterizing recurrences, assessing complications associated with endoscopic treatments and evaluating the incidence of advanced colorectal lesions. The findings of this study are expected to directly impact clinical guidelines and routine practice, optimizing resource utilization and improving patient quality of life.

02

Conditions studied

  • Colorectal Neoplasms
  • Adenoma Colon
  • Colonic Polyps
  • Serrated Adenoma
  • Endoscopic Mucosal Resection
  • Non-pedunculated Lesions
  • Thermal Ablation
  • Recurrence
03

In context

Colorectal Neoplasms

6,541 studies on the registry are indexed under Colorectal Neoplasms; 1,667 are open to participants now.

This study's planned enrollment of 746 is above the median of 76 across 4,800 interventional studies indexed under Colorectal Neoplasms.

Browse Colorectal Neoplasms studies →

Lead sponsor

Asociación Española de Gastroenterología is the lead sponsor of 6 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 85 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patients with a single non-pedunculated colorectal lesion (NPCL) ≥20 mm that has been resected piecemeal and treated with thermal ablation (using snare tip or argon plasma) at the margins as prophylaxis against recurrence, and who are awaiting the initiation of specific endoscopic follow-up.
  • Complete colonoscopy with adequate or excellent bowel preparation performed within the last 6 months prior to the resection of the index lesion.
  • Signed .

Exclusion criteria

Exclusion Criteria:

  • Resection performed using a cold snare technique due to the high risk of recurrence.
  • Histology of the lesion showing : colorectal cancer with submucosal invasion, regardless of invasion depth in microns.
  • Absence of information regarding the grade of dysplasia of the index lesion.
  • Personal history of colorectal cancer.
  • Incomplete endoscopic resection of the index lesion or any other polyps present in the patient.
  • When the endoscopist performing the index colonoscopy expresses doubts about whether the resection was complete.
  • Index lesion with prior attempted resection.
  • Hereditary cancer syndromes (e.g., adenomatous or serrated polyposis syndromes, Lynch syndrome, etc.).
  • Inflammatory bowel disease.
  • Severe comorbidities with reduced .
  • Pregnancy.
  • Ongoing cytotoxic treatment or radiotherapy for a malignant disease.
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
746 participants (estimated)

Study arms

  • Experimental
    Reduced surveillance interval

    Surveillance colonoscopies at 12 and 48 months

    Procedure: Colonoscopy

  • Placebo comparator
    Standard surveillance interval

    Surveillance colonoscopies at 6, 12 and 48 months

    Procedure: Colonoscopy

Interventions

  • ProcedureColonoscopy

    Surveillance colonoscopy

06

What researchers measure

Primary outcomes

  1. Cumulative incidence of recurrence/residual tissue

    Time frame: 12 months

Secondary outcomes

  1. To compare the cumulative incidence of recurrence/residual tissue

    Time frame: 48 months

  2. To describe the characteristics of recurrences

    Time frame: 48 months

  3. To determine the complete endoscopic resection rate in patients who have experienced recurrence.

    Time frame: 48 months

  4. To analyze the incidence of complications arising from the endoscopic treatment of recurrences.

    Time frame: 48 months

  5. To determine the proportion of patients requiring surgery to treat recurrence or complications associated with it.

    Time frame: 48 months

  6. To assess the incidence of advanced colonic lesions or colorectal cancer

    Time frame: 12 months

  7. To assess the incidence of advanced colonic lesions or colorectal cancer

    Time frame: 48 months

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Mar 2025; primary completion for May 2027, 26 months later.

Of 898 non-industry interventional studies with no phase under Colorectal Neoplasms, half reached primary completion within 32 months of starting (the median), counting those still running; a quarter within 15 and three quarters within 62. This study's planned 26 months is below that.

Counting every sponsor, half of 955 studies reached it within 32 months; a quarter within 14 and three quarters within 60.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 19, 2025
First posted
Jan 24, 2025
StartEst.
Mar 1, 2025
Primary completionEst.
May 31, 2027
CompletionEst.
May 31, 2030
Last update
Jan 24, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jan 24, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06791616
Lead sponsor
Asociación Española de Gastroenterología
Collaborators
Instituto de Investigación Sanitaria y Biomédica de Alicante
Responsible party
Sponsor
First posted
Jan 24, 2025
Start date
Mar 1, 2025 (estimated)
Primary completion
May 31, 2027 (estimated)
Completion
May 31, 2030 (estimated)
Last update
Jan 24, 2025

Study contacts

Rodrigo Jover, MD, PhD
Contact
rodrigojover@gmail.com
+34-965913952

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Jan 2025. You cannot join it, but the record below documents what was studied.

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